U.S. patent application number 17/242578 was filed with the patent office on 2021-08-12 for sesame oil based injection formulations.
The applicant listed for this patent is 3M INNOVATIVE PROPERTIES COMPANY. Invention is credited to Joseph M. Beaurline, John T. Capecchi, James M. Elvecrog, Karen E. Johnson, John P. Vasilakos.
Application Number | 20210244819 17/242578 |
Document ID | / |
Family ID | 1000005542698 |
Filed Date | 2021-08-12 |
United States Patent
Application |
20210244819 |
Kind Code |
A1 |
Beaurline; Joseph M. ; et
al. |
August 12, 2021 |
SESAME OIL BASED INJECTION FORMULATIONS
Abstract
Injectable formulations comprising ethanol, sesame oil, and an
Immune Response Modifier compound are disclosed. Methods of making
the formulations and methods of using the formulations for
treatment of a disease in a subject, e.g., neoplastic disease,
comprising injecting the formulations into a subject hi need of
treatment, are also provided.
Inventors: |
Beaurline; Joseph M.; (North
St. Paul, MN) ; Elvecrog; James M.; (Woodbury,
MN) ; Vasilakos; John P.; (Woodbury, MN) ;
Capecchi; John T.; (Oakdale, MN) ; Johnson; Karen
E.; (St. Paul, MN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
3M INNOVATIVE PROPERTIES COMPANY |
St. Paul |
MN |
US |
|
|
Family ID: |
1000005542698 |
Appl. No.: |
17/242578 |
Filed: |
April 28, 2021 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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15032773 |
Apr 28, 2016 |
11020486 |
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PCT/US14/63095 |
Oct 30, 2014 |
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17242578 |
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61900255 |
Nov 5, 2013 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A61K 47/44 20130101;
A61K 47/10 20130101; A61K 9/0019 20130101; C07D 471/04 20130101;
A61K 31/4745 20130101 |
International
Class: |
A61K 47/44 20060101
A61K047/44; A61K 9/00 20060101 A61K009/00; C07D 471/04 20060101
C07D471/04; A61K 31/4745 20060101 A61K031/4745; A61K 47/10 20060101
A61K047/10 |
Claims
1-2. (canceled)
3. The method according to claim 18, wherein the ethanol is present
in a concentration of from about 3 wt-% to about 8 wt-%.
4. The method according to claim 18, wherein the ethanol is present
in a concentration of from about 6.5 wt-% to about 7.5 wt-%.
5. The method according to claim 18, wherein the immune response
modifier compound is present in a concentration of from about 0.1
mg/mL to about 10 mg/mL.
6-8. (canceled)
9. The method according to claim 18, wherein the total nitrogen
content of the sesame oil is less than or equal to 1 ppm.
10. The method according to claim 18, wherein the sesame oil
contains no more than 0.05 wt-% of sesamin and no more than 0.05
wt-% of sesamolin.
11-16. (canceled)
17. The method according to claim 18, wherein the immune response
modifier compound comprises
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide, or a pharmaceutically acceptable salt thereof.
18. A method of delivering a pharmaceutical formulation, the method
comprising injecting the formulation into a subject, wherein the
pharmaceutical formulation comprises sesame oil having a hydroxyl
value less than or equal to 2, an acid value less than or equal to
0.1, and a peroxide value less than or equal to 1; ethanol; and an
immune response modifier compound of formula: ##STR00004## wherein:
X is alkylene having up to 8 carbon atoms optionally interrupted or
terminated by --O--; R.sub.2 is hydrogen, alkyl, alkoxyalkylenyl,
alkylaminoalkylenyl, or hydroxyalkylenyl; Y is --C(O)-- or
--S(O).sub.2--; R.sub.1 is a linear or branched aliphatic group
having 11-23 carbon atoms, optionally including one or more
unsaturated carbon-carbon bonds; and R is hydrogen, halogen, or
hydroxyl; or a pharmaceutically acceptable salt thereof.
19. The method of claim 18, wherein the formulation is injected
into a tumor mass.
20. The method of claim 18, wherein the formulation is injected
into a wart.
21. The method of claim 18, wherein the formulation is injected
into hypertrophic scar tissue.
22. A method of treating a disease in a subject, comprising
injecting into a subject in need of treatment of the disease a
pharmaceutical formulation comprising sesame oil having a hydroxyl
value less than or equal to 2, an acid value less than or equal to
0.1, and a peroxide value less than or equal to 1; ethanol; and an
immune response modifier compound of formula: ##STR00005## wherein:
X is alkylene having up to 8 carbon atoms optionally interrupted or
terminated by --O--; R.sub.2 is hydrogen, alkyl, alkoxyalkylenyl,
alkylaminoalkylenyl, or hydroxyalkylenyl; Y is --C(O)-- or
--S(O).sub.2--; R.sub.1 is a linear or branched aliphatic group
having 11-23 carbon atoms, optionally including one or more
unsaturated carbon-carbon bonds; and R is hydrogen, halogen, or
hydroxyl; or a pharmaceutically acceptable salt thereof.
23. The method of claim 22, wherein the disease is a neoplastic
disease.
24. The method of claim 23, wherein the formulation is injected
into a tumor mass.
25. The method according to claim 23, wherein the disease is
selected from a head or neck cancer, breast cancer, lymphoma,
melanoma, cutaneous T cell lymphoma, and bladder cancer.
26. The method of claim 22, wherein the disease is a viral disease
that causes warts.
27. The method of claim 26, wherein the formulation is injected
into a wart.
28. A method of making a formulation according to claim 1,
comprising providing sesame oil having a hydroxyl value less than
or equal to 2, an acid value less than or equal to 0.1, and a
peroxide value less than or equal to 1; ethanol; and an immune
response modifier compound of formula: ##STR00006## wherein: X is
alkylene having up to 8 carbon atoms optionally interrupted or
terminated by --O--; R.sub.2 is hydrogen, alkyl, alkoxyalkylenyl,
alkylaminoalkylenyl, or hydroxyalkylenyl; Y is --C(O)-- or
--S(O).sub.2--; R.sub.1 is a linear or branched aliphatic group
having 11-23 carbon atoms, optionally including one or more
unsaturated carbon-carbon bonds; and R is hydrogen, halogen, or
hydroxyl; or a pharmaceutically acceptable salt thereof; combining
the IRM compound with the ethanol to form an ethanol-IRM compound
solution; and combining the ethanol-IRM compound solution with the
sesame oil to form a sesame oil-ethanol-IRM compound
formulation.
29. The method of claim 28, further comprising the step of
evaporating a portion of the ethanol from the sesame
oil-ethanol-IRM compound formulation.
30. (canceled)
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to U.S. provisional patent
application Ser. No. 61/900,255, filed Nov. 5, 2013, the entire
disclosure of which is incorporated herein by, reference.
BACKGROUND
[0002] There have been important advances in recent years regarding
understanding of the 0.10 immune system and discovery of drug
compounds for modifying immune response to treat or prevent
disease. Such immune response modifier ("IRM") compounds have been
discovered in a variety of compound classes, including
imidazoquinoline amines, imidazopyridine amines, 6,7-fused
cycloalkylimidazopyridine amines, 1,2-bridged imidazoquinoline
amines, thiazoloquinoline amines, oxazoloquinoline amines,
thiazolopyridine amines, oxazolopyridine amines,
imidazonaphthyridine amines, imidazotetrahydronaphthyridine amines,
and thiazolonaphthyridine amines. See, for example, U.S. Pat. Nos.
4,689,338; 4,929,624; 5,266,575; 5,268,376; 5,346,905; 5,352,784;
5,389,640; 5,446,153; 5,482,936; 5,756,747; 6,110,929; 6,194,425;
6,331,539; 6,376,669; 6,451,810; 6,525,064; 6,541,485; 6,545,016;
6,545,017; 6,573,273; 6,656,938; 6,660,735; 6,660,747; 6,664,260;
6,664,264; 6,664,265; 6,667,312; 6,670,372; 6,677,347; 6,677,348;
6,677,349; 6,683,088; 6,756,382; 7,799,800; U.S. Patent Publication
Nos. 2012/040461 and 2013/0230578. Many of these compounds have
demonstrated potent immunostimulating, antiviral and antitumor
(including anticancer) activity, and have also been shown to be
useful as vaccine adjuvants and treatment of TH2-mediated
diseases.
[0003] However, the ability to provide desired therapeutic benefits
of such compounds depends on a variety of factors, including the
extent to which they can be formulated and delivered in a way that
is suitable for particular treatments. Accordingly, there is a need
for new methods and formulations to provide the potential
therapeutic benefits from these important immunomodifying drug
compounds.
SUMMARY
[0004] While many diseases may be treated by systemic delivery of
immune response modifying compounds, systemic delivery can have
increased negative side effects, such as systemic TNF induction, as
compared to localized delivery, and can also limit the amount of
IRM compound therapeutically available to treat the disease by
spreading it throughout the body. While some advancements have been
made in localized delivery of IRMs (see, e.g., U.S. Pat. No.
7,799,800; and U.S. Patent Publication Nos. 2004/0265351;
2009/0035323; and 2013/0230578), there remains a need for stable
formulations that provide increased localization of IRM
delivery.
[0005] It has been found that formulations comprising an IRM
compound, ethanol, and sesame oil provide locally active IRM
compounds for an extended period of time.
[0006] The present invention provides injectable formulations
comprising ethanol, sesame oil, and an Immune Response Modifier
(IRM) compound. The IRM compound generally has the formula (I):
##STR00001##
[0007] wherein R, R.sub.2, X, Y, and R.sub.1 are as defined
below.
[0008] In another aspect, the invention provides a method of
delivering the pharmaceutical formulations described herein,
comprising injecting the formulation into a subject.
[0009] In another aspect, the invention provides a method of
treating a disease, comprising injecting into a subject in need of
treatment of the disease any one of the formulations described
herein.
[0010] In another aspect, the present invention further provides a
method of making pharmaceutical formulations comprising ethanol,
sesame oil, and an IRM compound of Formula I.
[0011] The terms "comprises" and variations thereof do not have a
limiting meaning where these terms appear in the description and
claims.
[0012] As used herein, "a", "an", "the" "at least one", and "one or
more" are used interchangeably.
[0013] Also herein, the recitations of numerical ranges by
endpoints include all numbers subsumed within that range (e.g., 1
to 5 includes 1, 1.5, 2, 2.75, 3, 3.80, 4, 5, etc.).
[0014] "Induce" and variations thereof refer to any measurable
increase in cellular activity. For example, induction of an immune
response may include, for example, an increase in the production of
a cytokine, activation, proliferation, or maturation of a
population of immune cells, and/or other indicator of increased
immune function.
[0015] "Therapeutic" and variations thereof refer to a treatment
that ameliorates one or more existing symptoms or clinical signs
associated with a condition.
[0016] "Treat" or variations thereof refer to reducing, limiting
progression, ameliorating, preventing, or resolving, to any extent,
the symptoms or signs related to a condition.
[0017] The above summary of the present invention is not intended
to describe each disclosed embodiment or every implementation of
the present invention. The description that follows more
particularly exemplifies illustrative embodiments. In several
places throughout the description, guidance is provided through
lists of examples, which examples can be used in various
combinations. In each instance, the recited list serves only as a
representative group and should not be interpreted as an exclusive
list.
DETAILED DESCRIPTION
[0018] The present invention is directed to methods and
formulations of immune response modifiers (IRMs) that can be
deposited, in some embodiments via injection, within a localized
tissue region and can provide locally active IRM compounds for an
extended period of time. The formulations described herein exhibit
a high degree of stability, particularly of the IRM compound.
[0019] In general, the formulations of the present invention
comprise ethanol, sesame oil, and an IRM compound having the
following formula (I):
##STR00002##
wherein:
[0020] X is alkylene having up to t carbon atoms optionally
interrupted or terminated by --O--;
[0021] R.sub.2 is hydrogen, alkyl, alkoxyalkylenyl,
alkylaminoalkylenyl, or hydroxyalkylenyl;
[0022] Y is --C(O)-- or --S(O).sub.2--;
[0023] R.sub.1 is a linear or branched aliphatic group having 11-23
carbon atoms, optionally including one or more unsaturated
carbon-carbon bonds; and
[0024] R is hydrogen, halogen, or hydroxyl;
[0025] or a pharmaceutically acceptable salt thereof.
[0026] As used herein, the terms "alkyl", "alkenyl", and the prefix
"alk-" are inclusive of both straight chain and branched chain
groups and of cyclic groups, e.g. cycloalkyl and cycloalkenyl.
Unless otherwise specified, these groups contain from 1 to 23
carbon atoms, with alkenyl groups containing from 2 to 23 carbon
atoms, in some embodiments, these groups have a total of up to 20
carbon atoms, up to 18 carbon atoms, up to 16 carbon atoms, up to
10 carbon atoms, up to 8 carbon atoms, up to 7 carbon atoms, up to
6 carbon atoms, or up to 4 carbon atoms. Cyclic groups can be
monocyclic or polycyclic and preferably have from 3 to 10 ring
carbon atoms. Exemplary cyclic groups include cyclopropyl,
cyclopropylmethyl, cyclopentyl, cyclohexyl, adamantyl, and
substituted and unsubstituted bornyl, norbornyl, and
norbornenyl.
[0027] Unless otherwise specified, "alkylene" and "alkenylene" are
the divalent forms of the "alkyl" and "alkenyl" groups defined
above. The terms, "alkylenyl" and "alkenylenyl" are used when
"alkylene" and "alkenylene", respectively, are substituted. For
example, an alkoxyalkylenyl group comprises an alkylene moiety to
which an alkoxy group is attached.
[0028] An alkylene group with carbon atoms optionally "interrupted"
by --O-- refers to having carbon atoms on either side of the --O--.
An example is --CH.sub.2--CH.sub.2--O--CH.sub.2--CH.sub.2--.
[0029] An alkylene group with carbon atoms optionally "terminated"
by --O-- refers to having the --O-- on either end of the alkylene
group or chain of carbon atoms. Examples include
--O--CH.sub.2--CH.sub.2--CH.sub.2--CH.sub.2-- and
--CH.sub.2--CH.sub.2--CH.sub.2--CH.sub.2--O--. In the compounds
used in the present invention, when X is alkylene having up to 8
carbon atoms terminated by --O--, the --O-- may be connected to
either the nitrogen of the imidazole ring or the nitrogen of the
amide (Y is --C(O)--) or sulfonamide (Y is --S(O)2-) group.
[0030] The invention is inclusive of the IRM compounds described
herein (including intermediates) in any of their pharmaceutically
acceptable forms, including solid, semi-solid, solvates (e.g.,
hydrate), isomers (e.g., diastereomers and enantiotners), salts,
polymorphs, prodrugs, and the like. In particular, if a compound is
optically active, the invention specifically includes each of the
compound's enantiomers as well as racemic mixtures of the
enantiomers. It should be understood that the term "compound"
includes any or all of such forms, whether explicitly stated or not
(although at times, "salts" are explicitly stated).
[0031] For any of the compounds presented herein, including Formula
I, each one of the following variables (e.g., X, R.sub.2, R, and so
on) in any of its embodiments can be combined with any one or more
of the other variables in any of their embodiments and associated
with any one of the formulas described herein, as would be
understood by one of skill in the art. Each of the resulting
combinations of variables is an embodiment of the present
invention.
[0032] In some embodiments, X is alkylene having up to 8 carbon
atoms optionally interrupted or terminated by --O--.
[0033] In some embodiments, X is alkylene having up to 4 carbon
atoms optionally interrupted by or terminated by --O--.
[0034] In some embodiments, X is --O--C.sub.2-8 alkylene (e.g.,
--O--C.sub.2-5 alkylene). In these embodiments, the --O-- is
directly attached to the nitrogen of the imidazole ring.
[0035] In some embodiments, X is --O--C.sub.3-8alkylene (e.g.,
--O--C.sub.3-5 alkylene). In these embodiments, the --O-- is
directly attached to the nitrogen of the imidazole ring.
[0036] In some embodiments, X is --C.sub.1-8 alkylene (e.g.,
--C.sub.2-5 alkylene).
[0037] In some embodiments, X is --C.sub.2-8 alkylene (e.g.,
--C.sub.2-5 alkylene) that is interrupted by --O--.
[0038] In some embodiments, X is --C.sub.3-8 alkylene (e.g.,
--C.sub.3-5 alkylene).
[0039] In some embodiments, X is --O-butylene (e.g.,
--O--CH.sub.2--CH.sub.2--CH.sub.2--CH.sub.2--). In these
embodiments, the --O-- is directly attached to the nitrogen of the
imidazole ring.
[0040] In some embodiments, X is
--CH.sub.2--CH.sub.2--O--CH.sub.2--CH.sub.2--.
[0041] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R.sub.2 is hydrogen, alkyl,
alkoxyalkylenyl, alkylaminoalkylenyl, or hydroxyalkylenyl.
[0042] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R.sub.2 is hydrogen, alkyl,
alkoxyalkylenyl, or hydroxyalkylenyl.
[0043] In some embodiments, including any of the above embodiments
of Formula. I, where X is defined. R.sub.2 is hydrogen, alkyl, or
alkoxyalkylenyl.
[0044] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R.sub.2 is methyl, ethyl, propyl,
butyl, ethoxymethyl, methoxymethyl, ethylaminomethyl, or
2-methoxyethyl.
[0045] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R.sub.2 is methyl, ethyl, propyl,
butyl, ethoxymethyl, methoxymethyl, or 2-methoxyethyl.
[0046] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R.sub.2 is ethyl, butyl, ethoxy
methyl, or 2-methoxyethyl.
[0047] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R.sub.2 is C.sub.1-4 alkyl.
[0048] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R.sub.2 is butyl (e.g.,
--CH.sub.2--CH.sub.2--CH.sub.2--CH.sub.3).
[0049] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R is ethoxymethyl (e.g.,
--CH.sub.2--O--CH.sub.2--CH.sub.3).
[0050] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R.sub.2 is 2-methoxyethyl (e.g.,
--CH.sub.2--CH.sub.2--O--CH.sub.3).
[0051] In some embodiments, including any of the above embodiments
of Formula I, where X is defined, R.sub.2 is ethylaminomethyl
(e.g., --CH.sub.2--NH--CH.sub.2--CH.sub.3).
[0052] In some embodiments, including any of the above embodiments
of Formula I, where X or R is defined, R is hydrogen, halogen,
hydroxyl, alkyl, haloalkyl, or alkoxy.
[0053] In some embodiments, including any of the above embodiments
of Formula I, where X or R.sub.2 is defined, R is halogen or
hydroxyl.
[0054] In some embodiments, including any of the above embodiments
of Formula I, where X or R.sub.2 is defined, R is hydrogen.
[0055] In some embodiments, including any of the above embodiments
of Formula I, where X or R.sub.2 is defined, R is halogen. In some
embodiments, R is fluorine, chlorine, or bromine.
[0056] In some embodiments, including any of the above embodiments
of Formula I, where X, R, or R.sub.2 is defined, Y is --C(O)-- or
--S(O).sub.2--.
[0057] In some embodiments, including any of the above embodiments
of Formula I, where X, R, or R.sub.2 is defined, Y is --C(O)--.
[0058] In some embodiments, including any of the above embodiments
of Formula I, where X, R, R.sub.2, or Y is defined, R.sub.1 is a
linear or branched aliphatic group having 11-23 carbon atoms,
optionally including one or more unsaturated carbon-carbon bonds
(e.g., --(CH.sub.2).sub.7--CH.dbd.CH--(CH.sub.2).sub.7CH.sub.3,
(CH.sub.2).sub.7--CH.dbd.CH--(CH.sub.2).sub.5--CH.sub.3,
--(CH.sub.2).sub.9--CH.dbd.CH--(CH.sub.2).sub.5--CH.sub.3,
--(CH.sub.2).sub.6--(CH.sub.2--CH.dbd.CH).sub.2--(CH.sub.2).sub.4--CH.sub-
.3,
--(CH.sub.2).sub.6--(CH.sub.2--CH.dbd.CH).sub.3--CH.sub.2--CH.sub.3,
or
--(CH.sub.2).sub.2--(CH.sub.2--CH.dbd.CH).sub.4--(CH.sub.2).sub.4--CH.-
sub.3).
[0059] In some embodiments, including any of the above embodiments
of Formula I, where X, R, R.sub.2, or Y is defined, R.sub.1 is
C.sub.11-C.sub.23 alkyl.
[0060] In some embodiments, including any of the above embodiments
of Formula I, where X, R, R.sub.2, or Y is defined, R.sub.1 is
C.sub.15-C.sub.23 alkyl.
[0061] In some embodiments, including any of the above embodiments
of Formula I, where X, R, R.sub.2, or Y is defined, R.sub.1 is
C.sub.15-C.sub.19 alkyl.
[0062] In some embodiments, including any of the above embodiments
of Formula I, where X, R, R.sub.2, or Y is defined, R.sub.1 is
C.sub.15-C.sub.17 alkyl.
[0063] In some embodiments, including any of the above embodiments
of Formula I, where X, R, R.sub.2, or Y is defined, R.sub.1 is
C.sub.17 alkyl.
[0064] In some embodiments of Formula I, X is
--O--C.sub.3-5alkylene, and R.sub.2 is methyl, ethyl, propyl,
butyl, ethoxymethyl, methoxymethyl, or 2-methoxyethyl.
[0065] In some embodiments of Formula I, X is --O-butylene, and
R.sub.2 is butyl.
[0066] In some embodiments of Formula I, R.sub.1 is a straight
chain or branched chain alkyl group.
[0067] In some embodiments of Formula I, R.sub.1 is a straight
chain alkyl group.
[0068] In some embodiments, the compound of Formula I is
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxyl}butyl)octadeca-
namide
##STR00003## [0069] or a pharmaceutically acceptable salt
thereof.
[0070] IRM compounds used the formulations of the invention may be
synthesized by synthetic routes that include processes analogous to
those well known in the chemical arts, particularly in light of the
description contained herein. The starting materials are generally
available from commercial sources such as Aldrich Chemicals
(Milwaukee, Wis., USA) or are readily prepared using methods well
known to those skilled in the art (e.g., prepared by methods
generally described in Louis F. Fieser and Mary Fieser, Reagents
for Organic Synthesis, v. 1-19. Wiley, New York, (1967-1999 ed.);
Alan R. Katritsky, Otto Meth-Cohn, Charles W. Rees, Comprehensive
Organic Functional Group Transformations, v 1-6, Pergamon Press,
Oxford, England, (0.1995); Barry M. Trost and Ian Fleming,
Comprehensive Organic Synthesis, v. 1-8, Pergamon Press, Oxford,
England, (1991); or Beilsteins Handbuch der orttanischen Chemie, 4,
Aufl. Ed, Springer-Verlag, Berlin, Genitally, including supplements
(also available via the Beilstein online database)).
[0071] For more detailed description of the individual reaction
steps useful for preparing compounds of Formula I, see, e.g., U.S.
Pat. No. 7,799,800; and U.S. Patent Publication No.
2013/0230578.
[0072] The compounds of Formula I can also be prepared from
advanced intermediate compounds described in the prior art. The
compounds of Formula I can be prepared from the advanced
intermediate compounds of formula XIV, XXIV, and XXXVI that are
described in Reaction Schemes II, III, and IV respectively of
International Patent Application No. WO2012/167081. The compounds
of Formula I can also be prepared from the advanced intermediate
compound of formula VII in Reaction Scheme I or from the advanced
intermediate compound of formula VIII in Reaction Scheme II that
are both described in U.S. Pat. No. 6,451,810. Synthetic procedures
to prepare the above advanced intermediate compounds are also
described in International Patent Application No WO2012/167081 and
U.S. Pat. No. 6,451,810. The compounds of Formula I where X is
--C(O)-- can be prepared by reacting the above advanced
intermediate compounds with the appropriate carboxylic acid or
carboxylic acid chloride compound using the procedures described in
Reaction Schemes of U.S. Pat. No. 6,451,810. Preferred Formula I
compounds where X is --C(O)-- can be prepared using the following
carboxylic acids (or the corresponding carboxylic acid chloride
derivatives): lauric acid, meristic acid, palmitic acid, margaric
acid, stearic acid, arachidic acid, behenic acid, and lignoceric
acid. Formula I compounds where X is --C(O)-- and R1 is an
unsaturated aliphatic group (i.e. an aliphatic group having one or
more unsaturated carbon-carbon bonds) can be prepared from
unsaturated fatty acids such as oleic acid, palmitoleic acid,
vaccenic acid, linoleic acid, linolenic acid, or arachidonic
acid.
[0073] The compounds of Formula I where X is --S(O).sub.2-- can be
prepared by reacting the above advanced intermediate compounds with
the appropriate sulfonyl chloride using the procedures described in
Reaction Scheme 11 of U.S. Pat. No. 6,331,539.
[0074] Those skilled in the art will appreciate that other
synthetic routes may be used to synthesize the compounds of the
invention.
[0075] In the preparation of the IRM compounds used in the
formulations of the invention it ma sometimes be necessary to
protect a particular functionality while reacting other functional
groups on an intermediate. The need for such protection will vary
depending on the nature of the particular functional group and the
conditions of the reaction step. Suitable amino protecting groups
include acetyl, trifluoroacetyl, tert-butoxycarbonyl (Boc),
benzyloxycarbonyl, and 9-fluorenylmethoxycarbonyl (Fmoc). Suitable
hydroxy protecting groups include acetyl and silyl groups such as
the tert-butyl dimethylsilyl group. For a general description of
protecting groups and their use, see T. W. Greene and P. G. M.
Wuts, Protective Groups in Organic Synthesis, John Wiley &
Sons, New York, USA, 1991.
[0076] Conventional methods and techniques of separation and
purification can be used to isolate the IRM compounds used in the
formulations of the invention. Such techniques may include, for
example, all types of chromatography (high performance liquid
chromatography (HPLC), column chromatography using common
absorbents such as silica gel, and thin layer chromatography),
recrystallization, and differential (i.e., liquid-liquid)
extraction techniques.
[0077] The ethanol used in the injectable formulations described
herein is typically present in an amount of from about 1 wt-% to
about 9 wt-%. In some embodiments, the ethanol is present in an
amount from about 3 wt-% to about 8 wt-%. In some embodiments the
ethanol is present in an amount from about 5 wt-% to about 7.5
wt-%. In some embodiments, the ethanol is present in an amount from
about 1 wt-% to about 3 wt-%. In some embodiments, the ethanol is
present in an amount from about 3 wt-% to about 4 wt-%, In some
embodiments, the ethanol is present in an amount from about 4 wt-%
to about 5 wt-%. In some embodiments, the ethanol is present in an
amount from about 5 wt-% to about 6 wt-%. In some embodiments, the
ethanol is present in an amount from about 6 wt-% to about 7 wt-%.
In some embodiments the ethanol is present in an amount from about
6.5 wt-% to about 7.5 wt-%. In some embodiments, the ethanol is
present in an amount from about 8 wt-% to about 9 wt-%. In some
embodiments, as described, in the methods below, an excess of
ethanol (i.e. greater amount than is soluble in sesame oil), e.g.,
in some embodiments at least 10 wt-% ethanol, in some embodiments
at least 12 wt-% ethanol, in some embodiments at least 14 wt-%
ethanol, is used to dissolve greater amounts of IRM compound. When
the IRM-ethanol solution is added to the sesame oil, the IRM
dissolves much more quickly than simply adding the IRM to a
premixed sesame oil-ethanol solution; the excess ethanol (that is
present beyond the solubility limits in sesame oil) is then
evaporated off to produce the final formulation (containing 9 wt-%
ethanol or less). In some embodiments, ethanol suitable for use in
the injectable formulations described herein include ethanol that
does not contain tiny water or denaturant. Exemplary ethanol useful
in the formulations of the present invention includes 200 proof
ethanol, e.g., Dehydrated Alcohol, USP grade.
[0078] The injectable formulations described herein also include
sesame oil. The sesame oil used in the formulations described
herein is pharmaceutical grade, such as Sesame Oil, NF. In some
embodiments, the sesame oil may be refined such that one or more
polar compounds have been substantially removed from the sesame oil
or reduced in content without substantially altering the fatty acid
profile of the sesame oil. For example, the sesame oil may have a
fatty acid profile that includes palmitic acid, stearic acid, oleic
acid, and linoleic acid. Other fatty acids may also be present at
lower levels, typically less than 1 wt-%. Polar compounds present
in sesame oil can include but are not limited to compounds such as
monoglycerides, diglycerides, free fatty acids, plant sterols,
coloring matter (chlorophyll, carotene), sesamin, sesamolin,
products resulting from oxidation, and environmental chemicals.
Polar compounds in sesame oil can be quantitatively measured using
standard tests such as the acid value test, hydroxyl value test,
peroxide value test, and trace nitrogen value test. Standard
chromatography methods can be used to remove or substantially
reduce the content of at least one polar compound from sesame oil
to provide a refined sesame oil. Suitable chromatographic methods
that are well known in the art include gravity based column
chromatography, flash column chromatography, medium pressure liquid
chromatography, or high pressure chromatography.
[0079] In some embodiments, the sesame oil has a hydroxyl value
less than or equal to 2. The hydroxyl value of sesame oil can be
determined according to the published procedure described USP
36<401> Fats and Fixed Oils, Hydroxyl Value. In some
embodiments, the acid value of the sesame oil is less than or equal
to 0.1. The acid value of sesame oil can be determined according to
the published procedure described in USP 36<401> Fats and
Fixed Oils, Acid some embodiments, the peroxide value of the sesame
oil is less than or equal to 1. The peroxide value of sesame oil
can be determined according to the published procedure described in
USP 36<401> Fats and Fixed Oils, Peroxide Value. In some
embodiments, the total nitrogen content of the sesame oil is less
than or equal to 1 ppm. The trace nitrogen value of sesame oil can
be determined according to the published method described in ASTM
D5762-12. In some embodiments, the sesame oil contains no more than
0.05 wt-% of sesamin. In some embodiments, the sesame oil contains
no more than 0.05 wt-% of sesamolin. The levels of sesamin and
sesamolin can be determined according to the published
sesamin/sesamolin assay described by T. Tashiro, Y. Fukuda, T.
Osawa and in Journal of the American Oil Chemists' Society, 67, 508
(1990).
[0080] It has surprisingly been found that formulations comprising
an IRM compound, ethanol and refined sesame oil, as described above
such that one or more polar compounds have been substantially
removed from the sesame oil, have increased stability, not only of
the formulation in general, but also of the IRM compound itself.
The formulations described herein exhibit a high degree of chemical
and physical stability, particularly of the IRM compound. For
example, in some embodiments described herein, such as where
refiled sesame oil is used, the formulations exhibit an acceptable
shelf life for commercial use, e.g., 6-month shelf life, 1-year
shelf life, and the like.
[0081] In some embodiments, an injectable pharmaceutical
formulation of the present invention comprises sesame oil, ethanol
(7.5 wt-%), BHA (300 ppm), and
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl-
)octadecanamide (0.15 mg/mL). In some embodiments, an injectable
pharmaceutical formulation of the present invention comprises
sesame oil, ethanol (7.5 wt-%), BHA (300 ppm), and
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide (0.3 mg/mL). In some embodiments, an injectable
pharmaceutical formulation of the present invention comprises
sesame oil, ethanol (7.5 wt-%), BHA (300 ppm), and
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxyl}butyl)octadeca-
namide (0.6 mg/mL). In some embodiments, an injectable
pharmaceutical formulation of the present invention comprises
sesame oil, ethanol (7.5 wt-%), BHA (300 ppm), and
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide (1.2 mg/mL). In some embodiments, an injectable
pharmaceutical formulation of the present invention comprises
sesame oil, ethanol (7.5 wt-%), BHA (300 ppm), and
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide (2.4 mg/mL).
[0082] In some embodiments, an injectable pharmaceutical
formulation of the present invention comprises sesame oil, ethanol.
(7.5 wt-%), BRA (300 ppm), and
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl-
)octadecanamide (from 0.1 mg/mL to about 2.5 mg/mL).
[0083] Factors involved in the selection of an injectable
formulation include solubility of the IRM compound in the
formulation, stability of the IRM compound in the formulation,
physical stability of the formulation. These factors are especially
important when designing a formulation that can be stored for long
periods of time (>6 months) and at temperatures ranging from
5.degree. C. to 40.degree. C.
[0084] The chemical stability of the IRM compound in the
formulation can be influenced by the chemical composition of the
formulation and the storage conditions. The chemical stability of
the IRM compound in the formulation can be determined by analyzing
for the IRM compound content in the formulation over time using
standard analytical methods such as HPLC.
[0085] In some embodiments, the pharmaceutical formulations may
further include one or more additives including, but not limited
to, antioxidants, antimicrobials, adjuvants, thickeners, suspending
agents, surfactants, and dispersing agents. In some embodiments the
formulation can include an added antioxidant such as butylated
hydroxyanisole (BHA) or butylatedhydroxytoluene (BHT). The added
antioxidant concentration in the formulation can be at least 10
ppm, 50 ppm, 100 ppm, 200 ppm, and up to 300 ppm.
[0086] In some embodiments, the pharmaceutical formulations and
methods of the present disclosure can include other additional
active agents, e.g., in admixture or administered separately. Such
additional agents can include an antigen (e.g., a vaccine), a
chemotherapeutic agent, a cytotoxic agent, an antibody, an
antiviral agent, a cytokine, a tumor necrosis factor receptor
(TNFR) agonist, or an additional immune response modifier. TNFR
agonists that may be delivered in conjunction with a formulation of
the present invention include CD40 receptor agonists, such as
disclosed in application U.S. Pat. Appl. Pub. No. 2004/0141950
(Noelle et al.). Other active ingredients for use in combination
with an IRM formulation of the present invention include those
disclosed in, e.g., U.S. Pat. Appl. Pub. No. 2003/0139364 (Krieg et
al.).
[0087] IRM compounds of Formula I have been shown to induce
production of cytokines such TNF-.alpha. (see, e.g., U.S. Pat. No.
7,799,800; and U.S. Patent Publication No. 2013/0230578). The
ability to induce cytokine production indicates that the IRM
compounds used in formulations of the invention can modulate the
immune response in a number of different ways, rendering the IRM
compounds useful in the treatment of a variety of disorders. Other
cytokines whose production may be induced h the administration of
the formulations disclosed herein generally include Type I
interferons (e.g., INF-.alpha.), IL-1, IL-6, IL-8, IL-10, MIP-1,
MCP-1, and a variety of other cytokines. Among other effects, these
and other cytokines inhibit virus production and tumor cell growth,
making the formulations of the present invention useful in the
treatment of viral diseases and neoplastic diseases. For example,
tumor necrosis factor, interferons, or interleukins have been shown
to stimulate a rapid release of certain monocyte/macrophage-derived
cytokines and are also capable of stimulating B cells to secrete
antibodies which play an important role in antiviral and antitumor
activities.
[0088] In some embodiments, formulations of the present invention
are useful for the treatment of solid tumors such as head and neck
tumors, breast tumors, lymphoma, melanoma, and bladder tumors. In
some embodiments, formulations of the present invention are useful
for the treatment of cutaneous T cell lymphoma.
[0089] In some embodiments, formulations of the present invention
are useful for the treatment of viral warts and hypertrophic, or
keloid, scars.
[0090] The present invention further provides a method of
delivering the pharmaceutical formulations described herein,
comprising injecting the formulation into a subject. The injection
may be, e.g., subcutaneous, intramuscular, or into a selected
tissue site, such as a tumor mass. In some embodiments, the
formulation is injected into a tumor mass, a wart, or hypertrophic
scar tissue.
[0091] The present invention further provides a method of treating
a disease, comprising injecting into a subject in need of treatment
of the disease the any one of the formulations described
herein.
[0092] The methods of the present invention may be performed on any
suitable subject. Suitable subjects include animals such as humans,
non-human primates, rodents, dogs, cats, horses, pigs, sheep,
goats, or cows.
[0093] The animal to which the formulation is administered for
treatment may have a disease (e.g., a viral or neoplastic disease),
and administration of the compound may provide therapeutic
treatment. Exemplary conditions that may be treated by
administering a formulation of the present invention include:
[0094] (a) neoplastic diseases such as melanoma, leukemias (e.g.,
myelogenous leukemia, chronic lymphocytic leukemia, multiple
myeloma, non-Hodgkin's lymphoma, cutaneous T-cell lymphoma, B-cell
lymphoma, and hairy cell leukemia), breast cancer, lung cancer,
prostate cancer, colon cancer, head or neck cancers, bladder
cancer, and other cancers;
[0095] (b) viral diseases such as diseases resulting from infection
by a poxvirus (e.g., an orthopoxvirus such as variola or vaccinia,
or molluscum contagiosum), or a papovavirus papillomaviruses, such
as those that cause genital warts, common warts, or plantar
warts);
[0096] (c) diseases associated with wound repair such as inhibition
of keloid formation and other types of scarring (e.g., enhancing
wound healing, including chronic wounds).
[0097] In some embodiments, the disease treated is a neoplastic
disease. In some embodiments, the formulation is injected into a
tumor mass. In some embodiments, the disease treated is selected
from a head or neck cancer, breast cancer, lymphoma, melanoma, and
bladder cancer.
[0098] In some embodiments, the disease treated is a viral disease
that causes warts. In some embodiments, the formulation is injected
into a wart.
[0099] It will be understood that in the treatment of the diseases
mentioned above, for example, the formulations disclosed herein can
also be used in combination with other therapies such as other
active agents and other procedures (e.g., radiation, chemotherapy,
chemoablation, laser ablation, cryotherapy, and surgical
excision).
[0100] The precise amount of a IRM compound in the formulations
that will be therapeutically effective for methods according to the
present invention, and the closing regimen, for example, will vary
according to factors known in the art including the nature of the
carrier, the site and state of the subject's immune system (e.g.,
suppressed, compromised, stimulated), the species to which the
formulation is being administered, the dosing regimen selected, the
application site, the particular formulation, and the condition
being treated. Accordingly, it is not practical to set forth
generally the composition of a formulation that includes ethanol,
sesame oil, and an IRM compound of Formula I or an amount of the
IRM compound that constitutes an effective amount, or a dosing
regimen that is effective for all possible applications. Those of
ordinary skill in the art, however, can readily determine
appropriate formulations, therapeutically effective amounts of the
IRM compound, and dosing regimen based on the guidance provided
herein, information available in the art pertaining to IRM
compounds, and routine testing. The term "a therapeutically
effective amount" thus means an amount of the compound sufficient
to induce a therapeutic or prophylactic effect, such as cytokine
induction, inhibition of TH2 immune response, antiviral or
antitumor activity, reduction of scarring, or enhanced wound
healing.
[0101] An amount of a formulation or IRM compound in the
formulation effective to induce cytokine biosynthesis is an amount
sufficient to cause one or more cell types, such as monocytes,
macrophages, dendritic cells and 8-cells to produce an amount of
one or more cytokines such as, for example, IFN-.alpha.,
TNF-.alpha., IL-1, IL-6, IL-10 and IL-12 that is increased over a
background level of such cytokines. The precise amount will vary
according to factors known in the art but is expected to be a dose
of about 100 nanograms per kilograms (ng/kg) to about 50 milligrams
per kilogram (mg/kg), in some embodiments about 10 micrograms per
kilogram (.mu.g/kg) to about 5 mg/kg, about 100 .mu.g/kg to about 1
mg/kg, or about 0.01 mg/m.sup.2 to about 10 mg/m.sup.2.
Alternatively, the dose may be calculated using actual body weight
obtained just prior to the beginning of a treatment course. For the
dosages calculated in this way, body surface area (m.sup.2) is
calculated prior to the beginning of the treatment course using the
Dubois method: m.sup.2=(wt kg.sup.0.425.times.height
cm.sup.0.725).times.0.007184. An amount effective to treat or
inhibit a viral infection, for example, is an amount that will
cause a reduction in one or more of the manifestations of viral
infection, such as viral lesions, viral load, rate of virus
production, and mortality as compared to untreated control animals
and may include any of the aforementioned doses. An amount of a
compound or pharmaceutical composition effective to treat a
neoplastic condition is an amount that will cause a reduction in
tumor size or in the number of tumor foci and may include any of
the aforementioned doses.
[0102] Formulations of the invention may induce the production of
certain cytokines and are useful as immune response modifiers that
can modulate the immune response in a number of different ways,
rendering them useful in the treatment of a variety of disorders.
Among other effects, these and other cytokines can inhibit virus
production and tumor cell growth, making the formulations useful
for, e.g., treatment of viral and neoplastic diseases. It should
also be noted that the formulations may be administered prior to
acquiring a disease so that administration of the formulation may
provide a prophylactic treatment.
[0103] In addition to the ability to give rise to cytokine
induction, formulations of the invention may bring about an effect
on other aspects of the innate immune response. For example,
natural killer cell activity may be stimulated, an effect that may
be due to cytokine induction. The formulations may also bring about
activation of macrophages, which in turn stimulate secretion of
nitric oxide and the production of additional cytokines. Further,
the formulations may bring about proliferation and differentiation
of B-lymphocytes.
[0104] Formulations of the invention may also bring about an effect
on the acquired immune response. For example, the production of the
T helper type 1 (T.sub.H1) cytokine IFN-.gamma. may be induced
indirectly and the production of the T helper type 2 (T.sub.H2)
cytokines IL-4, IL-5 and IL-13 may be inhibited noon administration
of the formulations.
[0105] Formulations of the present invention may be particularly
helpful in individuals having compromised immune function. For
example, compounds or salts may be used for treating the
opportunistic infections and tumors that occur after suppression of
cell mediated immunity in, for example, transplant patients, cancer
patients and HIV patients.
[0106] The invention thus also provides, for example, a method of
treating a viral infection in an animal and a method of treating a
neoplastic disease in an animal comprising administering via
injection an effective amount of a formulation of the invention to
the animal. An amount effective to treat or inhibit a viral
infection is an amount that will cause a reduction in one or more
of the manifestations of viral infection, such as viral lesions,
viral load, rate of virus production, and mortality as compared to
untreated control animals. The precise amount that is effective for
such treatment will vary according to factors known in the art but
is expected to be an amount so as to deliver an IRM compound dose
of about 100 ng/kg to about 50 mg/kg, preferably about 1 .mu.g/kg
to about 5 mg/kg. An amount of formulation effective to treat a
neoplastic condition is an amount that will cause a reduction in
tumor size or in the number of tumor foci. Again, the precise
amount will vary according to factors known in the art but is
expected to be an amount at a given drug concentration to deliver
via injection an IRM compound dose of about 100 ng/kg to about 50
mg/kg, for example about 1 .mu.g/kg to about 5 mg/kg.
[0107] Particular examples of uses of formulations of the invention
delivered via injection include, but are not limited to, treatment
of bead and neck cancers and breast cancer.
[0108] The injectable formulations described herein can include a
range of IRM compound concentrations, with lower limits based on
minimum therapeutic potency of the IRM compound and upper limits
based primarily on solubility of the drug. In general, the
concentration of the IRM compound will be from about 0.1 mg/ml to
about 10 mg/ml (approximately 0.01% to about 1% by weight). In some
embodiments, the IRM compound is present in an amount of from about
0.1 mg/ml to about 6 mg/ml. In some embodiments, the IRM compound
is present in an amount of from about 0.5 mg/ml to about 3
mg/ml.
[0109] In some embodiments of the methods disclosed herein, the
formulation may be administered, for example, from a single dose to
multiple doses per week, although in some embodiments the methods
of the present invention may be performed by administering the
formulation at a frequency outside this range. In some embodiments,
the formulation may be administered from about once per month to
about five times per week. In some embodiments, the formulation is
administered once per week.
[0110] The present invention further provides a method of making
pharmaceutical formulations comprising ethanol, sesame oil, and an
IRM compound of Formula I. In some embodiments, the method of
making comprises dissolving the IRM compound in the ethanol to
create an ethanol-IRM compound solution. In some embodiments, the
IRM compound is fully dissolved in the ethanol, while in some
embodiments, small amount of IRM compound will remain undissolved
but the majority of IRM compound will be dissolved. The ethanol-IRM
compound solution is then mixed with the sesame oil to make the
sesame oil-ethanol-IRM compound formulation. In some embodiments,
the IRM compound will be fully dissolved in the sesame
oil-ethanol-IRM compound formulation, while in some embodiments,
small amount of IRM compound will remain undissolved in the sesame
oil-ethanol-IRM compound formulation but the majority of IRM
compound will be dissolved.
[0111] In some embodiments, the method of making comprises mixing
the IRM compound with the ethanol and sesame oil simultaneously to
make the sesame oil-ethanol-WM compound formulation. In some
embodiments, the IRM compound will be fully dissolved in the sesame
oil-ethanol-IRM compound formulation, while in some embodiments,
small amount of IRM compound will remain undissolved in the sesame
oil-ethanol-IRM compound formulation but the majority of IRM
compound will be dissolved.
[0112] In some embodiments, the method of making may further
include a step of evaporating off a portion of the ethanol from the
sesame oil-ethanol IRM compound formulation. Such method allows
faster dissolution of the IRM in the sesame oil-ethanol solution,
by allowing use of excess ethanol (ethanol present beyond the
solubility limits in sesame oil) during the mixing steps. In some
embodiments, after evaporation of a portion of the ethanol, ethanol
remains in the final formulation, e.g., 1 wt-% to 9 wt-%.
[0113] It will be recognized that any additives described above can
be added during any of the above-described mixing steps.
[0114] Embodiments of this invention are further illustrated by the
following non-limiting examples, but the particular materials and
amounts thereof recited in these examples, as well as other
conditions and details, should not be construed to unduly limit
this invention.
EXAMPLES
[0115] Injection Formulation Components
[0116]
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)oct-
adecanamide was prepared according to the synthetic procedure
described in Example 1 of U.S. Patent Publication No. 2013/0230578
(Wightman).
[0117] Ethanol (200 proof, USP grade) was obtained from
Pharmaco-AAPER (Brookfield, Conn.) or Columbus Chemical Industries
(Columbus, Wis.). For final formulations containing BHA, a fresh
stock sample of deoxygenated ethanol was prepared by passing a
gentle flow of dry nitrogen gas through the ethanol (sparging) for
about five to ten minutes. The bottle was then immediately
capped.
[0118] Sesame oil was obtained from Croda Inc. (Edison, N.J.) as
the SUPER REFINED.RTM. Sesame Oil NF/NP grade product (product code
number SR40280). The "NP" designation indicated that the sesame oil
did not contain BHT (butylated hydroxytoluene) as an added
antioxidant. According to the manufacturer, sesame oil with the
SUPER REFINED.RTM.) designation was purified using flash
chromatography to remove polar impurities present in the sesame
oil. For final formulations containing added BHA, a fresh stock
sample of deoxygenated sesame oil was prepared by passing a gentle
flow of dry nitrogen gas through the sesame oil (sparging) for
about ten to twenty minutes. The bottle was then immediately
capped.
[0119] Butylated hydroxyanisole, NF grade (BHA) was obtained from
Spectrum Chemical Company (New Brunswick, N.J.). The formulations
containing BHA were prepared with a BHA concentration of 300
ppm.
[0120] Analytical Method
[0121] The content of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide in the injection formulations was determined using reversed
phase high performance liquid chromatography (Agilent 1100 HPLC
instrument equipped with a ultraviolet detector set at 321 nm,
Agilent Technologies, Santa Clara, Calif.). The analytical column
used was a Zorbax Bonus RP column with a 150 mm length, 4.6 mm
inner diameter, and 3.5 micron particle size (Agilent
Technologies). The column was maintained at 45.degree. C. A
gradient elution was conducted with the mobile phase consisting of
0.1% trifluoroacetic acid in water, methanol, and isopropanol. The
initial mobile phase consisted of 0.1% trifluoroacetic acid and
methanol in a ratio of 85:15. The final mobile phase consisted 0.1%
trifluoroacetic acid, methanol, and isopropanol in a ratio of
5:40:55. The flow rate was 1.0 mL/minute.
Example 1. Injection Formulation: Ethanol (7.5 Weight Percent) in
Sesame Oil
[0122]
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)oct-
adecanamide (0.21 g) and ethanol (26.79 g) were added to an amber
glass bottle. The bottle was capped and placed in an ultrasonic
bath (Branson model 8510-DTH, Branson Ultrasonics, Danbury, Conn.).
The sample was sonicated until all of the
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide dissolved (about ten minutes). The resulting ethanol solution
contained 0.78 weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide bottle. Next, 21.59 g of the ethanol solution containing 0.78
weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide was transferred to an amber glass bottle containing 277.5 g
of sesame oil. An additional 1.08 g of ethanol was also added to
the bottle. The bottle was capped and then placed on a laboratory
roller mixer. The formulation was agitated until it became
transparent on visual inspection (agitation for about 15 minutes)
in a final step the formulation was passed through a 0.2 micron
polyethersulfone (PSA) membrane filter (EMD Millipore, Billerica,
Mass.) and 6 mL of the formulation was collected in a clear glass
serum vial (Miller Analytical Company, Bristol, Pa.). The headspace
in the vial was purged with a stream of dry nitrogen gas and the
vial was capped with an aluminum crimp cap containing a gray
chlorobutyl-isoprene septum (Miller Analytical Company). The
concentration of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide its the final formulation was about 0.5 mg/mL.
Example 2. Injection Formulation: Ethanol (7.5 Weight Percent) in
Sesame Oil Containing BHA
[0123]
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)oct-
adecanamide (0.21 g) and deoxygenated ethanol (26.79 g) were added
to an amber glass bottle. The bottle was capped and placed in an
ultrasonic bath (Branson model 8510-DTH). The sample was sonicated
until all of the
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide dissolved (about ten minutes). The resulting ethanol solution
contained 0.78 weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide bottle. Next, 21.59 g of the ethanol solution containing 0.78
weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide and BHA (90 mg) Were transferred to an amber glass bottle
containing 277.5 g of deoxygenated sesame oil. An additional 1.08 g
of deoxygenated ethanol was also added to the bottle. A gentle
stream of dry nitrogen gas was then passed through the formulation
for about 10 seconds. The bottle was capped and then placed on a
laboratory roller mixer. The formulation was agitated until it
became transparent on visual inspection (agitation for about 15
minutes). In a final step the formulation was passed through a 0.2
micron polyethersulfone (PSA) membrane filter (EMD Millipore,
Billerica, Mass.) and 6 mL of the formulation was collected in a
clear glass serum vial (Miller Analytical Company, Bristol, Pa.).
The headspace in the vial was purged with a stream of dry nitrogen
gas and the vial was capped with an aluminum crimp cap containing a
gray chlorobutyl-isoprene septum (Miller Analytical Company). The
concentration of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide in the final formulation was about 0.5 mg/mL.
Example 3. Injection Formulation: Ethanol (5 Weight Percent) in
Sesame Oil
[0124]
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)oct-
adecanamide (0.30 g) and ethanol (15.0 g) were added to an amber
glass bottle. The bottle was capped and placed in an ultrasonic
bath (Branson model 8510-DTH). The sample was sonicated until all
of the
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide dissolved (about ten minutes). The resulting ethanol solution
contained 2.0 weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide bottle. Next, 0.29 g of the ethanol solution containing 2.0
weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide was transferred to an amber glass bottle containing 10.5 g of
sesame oil. An additional 0.23 g of ethanol was also added to the
bottle. The bottle was capped and then placed on a laboratory
roller mixer. The formulation was agitated until it became
transparent on visual inspection (agitation for about 15 minutes).
In a final step the formulation was passed through a 0.2 micron
polyethersulfone (PSA) membrane filter (EMD Millipore, Billerica,
Mass.) and 6 mL of the formulation was collected in a clear glass
serum vial (Miller Analytical Company, Bristol, Pa.). The headspace
in the vial was purged with a stream of dry nitrogen gas and the
vial was capped with an aluminum crimp cap containing a gray
chlorobutyl-isoprene septum (Miller Analytical Company). The
concentration of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide in the final formulation was about 0.5 mg/mL.
Example 4. Injection Formulation: Ethanol (9 Weight Percent) in
Sesame Oil
[0125]
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)oct-
adecanamide (0.30 g) and ethanol (15.0 g) were added to an amber
glass bottle. The bottle was capped and placed in an ultrasonic
bath (Branson model 8510-DTH). The sample was sonicated until all
of the
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide dissolved (about ten minutes). The resulting ethanol solution
contained 2.0 weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide bottle. Next, 3.0 g of the ethanol solution containing 2.0
weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide was transferred to an amber glass bottle containing 54.5 g of
sesame oil. An additional 2.4 g of ethanol was also added to the
bottle. The bottle was capped and then placed on a laboratory
roller mixer. The formulation was agitated until it became
transparent on visual inspection (agitation for about 15 minutes).
In a final step the formulation was passed through a 0.2 micron
polyethersulfone (PSA) membrane filter (EMD Millipore, Billerica,
Mass.) and 6 mL, of the formulation was collected in a clear glass
serum vial (Miller Analytical Company, Bristol, Pa.). The headspace
in the vial was purged with a stream of dry nitrogen gas and the
vial was capped with an aluminum crimp cap containing a gray
chlorobutyl-isoprene septum (Miller Analytical Company). The
concentration of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide in the final formulation was about 1 mg/mL.
Example 5. Injection Formulation: Ethanol (8.5 Weight Percent) in
Sesame Oil
[0126]
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)oct-
adecanamide (1.22 g) and ethanol (60.0 g) were added to an amber
glass bottle. The bottle was capped and placed in an ultrasonic
bath (Branson model 8510-DTH). The sample was sonicated until all
of the
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide dissolved (about thirty minutes). The resulting ethanol
solution contained 2.0 weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide bottle. Next, 9.0 g of the ethanol solution containing 2.0
weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide was transferred to an amber glass bottle containing 60.0 g of
sesame oil. The bottle was capped and then placed on a laboratory
roller mixer. The formulation was agitated until it became
transparent on visual inspection (agitation for about 15 minutes).
A stream of dry nitrogen gas was passed over the stirred
formulation to evaporate 3.4 g of ethanol. In a final step the
formulation was passed through a 0.2 micron polyethersulfone (PSA)
membrane filter (EMD Millipore, Billerica, Mass.) and 6 mL of the
formulation was collected in a clear glass serum vial (Miller
Analytical Company, Bristol. Pa.). The headspace in the vial was
purged with a stream of dry nitrogen gas and the vial was capped
with an aluminum crimp cap containing a gray chlorobutyl-isoprene
septum (Miller Analytical Company). The concentration of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide in the final formulation was about 3 mg/mL.
Example 6. Injection Formulation: Ethanol (9 Weight Percent) in
Sesame Oil
[0127]
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)oct-
adecanamide (1.22 g) and ethanol (60.0 g) were added to an amber
glass bottle. The bottle was capped and placed in an ultrasonic
bath (Branson model 8510-DTH). The sample was sonicated until all
of the
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide dissolved (about thirty minutes). The resulting ethanol
solution contained 2.0 weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide bottle. Next, 2.5.0 it of the ethanol solution containing 2.0
Weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide was transferred to an amber glass bottle containing 90.5 g of
sesame oil. The bottle was capped and then placed on a laboratory
roller mixer. The formulation was agitated until it became
transparent on visual inspection (agitation for about 15 minutes).
A stream of dry nitrogen gas was passed over the stirred
formulation to evaporate 15.5 g of ethanol. In a final step the
formulation was passed through a 0.2 micron polyethersulfone (PSA)
membrane filter (EMD Millipore, Billerica, Mass.) and 6 nil of the
formulation was collected in a clear glass serum vial (Miller
Analytical Company. Bristol, Pa.). The headspace in the vial was
purged with a stream of dry nitrogen gas and the vial was capped
with an aluminum crimp cap containing a gray chlorobutyl-isoprene
septum (Miller Analytical Company). The concentration of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide in the final formulation was about 5 mg/mL.
Example 7. Injection Formulation: Ethanol (6.5 Weight Percent) in
Sesame Oil
[0128]
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)oct-
adecanamide (0.30 g) and ethanol (15.3 g) were added to an amber
glass bottle. The bottle was capped and placed in an ultrasonic
bath (Branson model 8510-DTH). The sample was sonicated until all
of the
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide dissolved (about ten minutes). The resulting ethanol solution
contained 1.7 weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide bottle. Next, 0.18 g of the ethanol solution containing 1.9
weight percent of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide was transferred to an amber glass bottle containing 31.7 g of
sesame oil. An additional 2.0 g of ethanol was also added to the
bottle. The bottle was capped and then placed on a laboratory
roller mixer. The formulation was agitated until it became
transparent on visual inspection (agitation for about 15 minutes).
In a final step the formulation was passed through a 0.2 micron
polyethersulfone (PSA) membrane filter (EMD Millipore, Billerica,
Mass.) and 6 mL of the formulation was collected in a clear glass
serum vial (Miller Analytical Company, Bristol, Pa.). The headspace
in the vial was purged with a stream of dry nitrogen gas and the
vial was capped with an aluminum crimp cap containing a gray
chlorobutyl-isoprene septum (Miller Analytical Company). The
concentration of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide in the final formulation was about 0.1 mg/mL.
Example 8. Injection Formulation: Ethanol (7.2 Weight Percent) in
Sesame Oil
[0129] A solution of ethanol (7.2 weight percent) in sesame oil was
prepared by adding 3.9 g of ethanol and 50.0 g of sesame oil to an
amber bottle followed by gentle stirring.
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide (53.9 mg) was then added to the ethanol/sesame oil solution.
The bottle was capped and placed in an ultrasonic bath (Branson
model 8510-DTH). The sample was sonicated for 30 minutes and then
further shaken using a shaker table (Erbach Corporation, Ann Arbor,
Mich.) until all of the
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecan-
amide was dissolved (about 20 hours). The resulting solution was
passed through a 0.2 micron polyethersulfone (PSA) membrane filter
(EMD Millipore, Billerica, Mass.) and collected in a glass bottle.
The headspace in the bottle was purged with a stream of dry
nitrogen gas and the bottle was capped. The concentration of
N-(4-{4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecana-
mide in the final formulation was about 1 mg/g.
Example 9. Additional Injection Formulations
[0130] A variety of formulations with differing levels of ethanol
concentration (weight percent of ethanol in the formulation),
N-(4-{4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecana-
mide concentration (mg/mL of formulation), and BHA concentration
(ppm) were prepared using the general procedures of Examples 1-7.
For Formulations 9-H thru 9-J deoxygenated ethanol and sesame oil
were used. The formulations are reported in Table 1.
[0131] Formulations were prepared in which the ethanol content of
the formulation was reduced by including an ethanol evaporation
step immediately prior to the final filtration step. The
evaporation of the ethanol in the formulation was accomplished by
passing a stream of dry nitrogen gas over the stirred
formulation.
TABLE-US-00001 TABLE 1 Concentration Concentration of N-(4- of
Ethanol in {4-amino-2-butyl-1H- the Injection
imidazo[4,5-c]quinolin-1- BHA Formulation
yl]oxy}butyl)octadecanamide Concen- Formulation (weight in the
Injection Formulation tration Designation percent) (mg/mL) (ppm)
9-A 5 0.1 0 9-B 5 1 0 9-C 6 0.1 0 9-D 6 0.3 0 9-E 6 1 0 9-F 7 0.4 0
9-G 7 0.5 0 9-H 7 2.5 300 9-I 7.5 1.5 300 9-J 7.5 2.5 300 9-K 9 3 0
9-L 9 5 0
Example 10. Intratumoral (IT) Injection
[0132] All procedures were conducted in accordance with approved
Institutional Animal Care and Use Committee (IACUC) protocols. The
animals were housed in a facility that was accredited by the
Association for Assessment and Accreditation of Laboratory Animal
Care (AAALAC, Frederick, Md.) C57BL/6J-Tyr Albino mice, female,
15-20 grams were obtained from Jackson Labs, Bar Harbor, Me. The
syngeneic B16.OVA melanoma cell line was obtained from Dr. Wynette
Dietz, University of Minnesota. The cell line was characterized at
3M and determined to express OVA.
[0133] Prior to establishing tumor-bearing mice, the animals were
anesthetized with 1% isoflurane in an airtight box and then
maintained under anesthesia by administration of 0.1% isoflurane
via a face mask. Each mouse was given a unique descriptor (unique
tattooed number on the tail). The right flank was shaved and
5.times.10.sup.5 B16.OVA melanoma cells in 0.1 mL DPBS were
implanted subcutaneously.
[0134] Seven days after tumor implantation the mice were randomized
into 3 groups (Groups A-C) of 20 mice per group. At this point the
average tumor size in the mice was approximately 20 mm.sup.2.
Animals that were outliers based on tumor size were identified and
excluded from the study based on the ROUT statistical method
developed by GraphPad Software (La Jolla, Calif.). The Group A
animals received a 0.05 mL intratumoral injection of the
formulation of Example 3. The Group B animals received a 0.05 mL
injection of the Formulation of Example 3 administered
subcutaneously (SC) into the flank region opposite from the
implanted tumor (i.e. left flank) The Group C animals received a
0.05 mL intratumoral injection of a Vehicle Control Formulation.
The Vehicle Control Formulation was the same as the Formulation of
Example 3 with the exception that
N-(4-{4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl)octadecana-
mide was not included in the formulation. All of the formulations
for Groups A-C were administered using a 0.5 mL syringe with a 26
gauge needle. All three groups were injected with the corresponding
formulation at 7 days and 14 days after the tumor implantation. For
Groups A and C the intratumoral injection was administered in the
center of the tumor. Prior to injection, the animals were
anesthetized with 1% isoflurane via a face mask. For each animal,
the tumor size was measured with a calibrated digital caliper. All
tumors were palpable and visible. If the tumor size was measured to
be 200 mm.sup.2 or greater, the animal was euthanized. The animals
were monitored for 90 days post tumor implantation. For each
animal, the tumor size data is reported in Tables 2A-C, and the
percent survival data is reported in Table 3. The median survival
in days was 34 days for Group A, 22 days for group B, and 21.5 days
for Group C. The animal survival data was analyzed using Prism 5.04
software (GraphPad Software). Kaplan-Meier survival curves were
compared by the log-rank (Mantel-Cox) test followed by pairwise
comparison using the (Gehan-Breslow-Wilcoxon test. The survival
advantage of the Group A animals versus group B and C animals was
determined to be statistically significant (p value<0.001).
Example 11
[0135] A variety of formulations with fixed levels of ethanol
concentration (at 7.5 wt-% of ethanol in the formulation),
differing levels of
N-(4-{[4-amino-2-butyl-1H-imidazo[4,5-c]quinolin-1-yl]oxy}butyl-
)octadecanamide concentrations ranging from 0.1 mg/mL to 2.5 mg/mL,
and BHA concentrations (300 ppm) are prepared using the general
procedures of Examples 1-7. For Formulations 11-A thru 11-E
deoxygenated ethanol and sesame oil are used. The formulations are
reported in Table 4.
[0136] Formulations are prepared in which the ethanol content of
the formulation is reduced by including an ethanol evaporation step
immediately prior to the final filtration step. The evaporation of
the ethanol in the formulation is accomplished by passing a stream
of dry nitrogen gas over the stirred formulation.
TABLE-US-00002 TABLE 4 Concentration Concentration of N-(4- of
Ethanol in {[4-amino-2-butyl-1H- the Injection
imidazo[4,5-c]quinolin-1- BHA Formulation
yl]oxy}butyl)octadecanamide Concen- Formulation (weight in the
Injection Formulation tration Designation percent) (mg/mL) (ppm)
11-A 7.5 0.15 300 11-B 7.5 0.3 300 11-C 7.5 0.6 300 11-D 7.5 1.2
300 11-E 7.5 2.4 300
TABLE-US-00003 TABLE 2A Group A (IT Injection of the Example 3
Formulation): Tumor Size Days Post Tu- mor Im- plan- ta- Tumor Size
(mm.sup.2) for Each Animal in Group A tion Al A2 A3 A4 A5 A6 A7 A8
A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 8 21 15 20 24 12 18
34 17 25 14 12 16 18 24 26 22 26 33 19 11 15 13 31 36 42 25 38 187
46 65 18 67 23 28 58 63 17 16 53 39 36 16 NM NM NM NM NM NM 226* NM
NM NM NM NM NM NM NM NM NM NM NM NM 19 22 32 54 73 65 48 68 104 33
70 51 47 89 87 71 30 69 47 36 21 NM NM NM NM NM NM NM NM NM NM NM
NM NM NM NM NM NM NM NM 22 NM 20 45 108 43 58 104 132 40 97 44 65
317* 99 49 36 105 61 45 23 NM NM NM NM NM NM NM NM NM NM NM NM NM
NM NM NM NM NM 26 37 36 74 117 185 75 131 161 90 113 35 67 90 88 59
149 97 58 27 NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM
28 NM NM NM NM 180 NM NM 245* NM NM NM NM NM 107 NM 152 NM NM 30 44
42 54 197* 309* 112 240* 35 144 81 61 92 81 48 217* 171 40 34 42 43
66 198* 43 212* 57 125 139 244* 77 350* 79 36 50 39 61 29 30 176
225* 63 51 40 75 35 67 41 49 284* 156 43 47 278* 46 70 41 97 72 124
51 38 NM NM 160 158 222* 54 NM NM NM 235* 193 55 38 73 41 241* 62
44 154 28 64 45 271* 42 75 163* 46 90 50 The * designation after a
value indicates that the animal was euthanized post measurement per
the experimental protocol (Example 10); NM indicates not
measured.
TABLE-US-00004 TABLE 2B Group B (SC Injection of the Example 3
Formulation into the Flank Region Opposite from the Tumor): Tumor
Size Days Post Tu- mor Im- plan- ta- Tumor Size (mm.sup.2) for Each
Animal in Group B tion B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13
B14 B15 B16 B17 B18 B19 B20 8 22 41 26 13 24 14 26 26 24 4 20 26 24
30 24 5 26 21 0 22 15 99 51 44 157 53 68 112 132 127 12 120 74 91
68 19 34 52 52 17 24 16 141 NM 137 250* NM NM NM 135 140 NM 135 NM
NM NM NM NM NM NM NM NM 19 250* 89 200* 84 112 135 228* 227* 18
381* 165 157 106 18 105 158 84 25 51 21 NM NM NM NM NM 265* 203* NM
NM 163 202* NM NM NM 22 146 149 261* 223* 19 186* 52 238* 104 53 77
23 156 182 NM NM NM NM NM 26 205* 173 28 114 130 86 123 27 NM NM NM
NM NM 205* 28 212* NM NM NM NM 30 49 240* 223* 276* 34 142 36 215*
40 47 51 54 55 62 64 75 90 The * designation after a value
indicates that the animal was euthanized post measurement per the
experimental protocol (Example 10); NM indicates not measured.
TABLE-US-00005 TABLE 2C Group C (IT Injection of the Vehicle
Control Formulation): Tumor Size Days Post Tu- mor im- plan- ta-
Tumor Size (mm.sup.2) for Each Animal in Group C tion C1 C2 C3 C4
C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 8 11 18
17 42 10 24 16 12 40 31 16 42 12 11 23 21 18 27 25 14 15 54 13 51
179 46 180 50 94 90 132 82 60 90 66 118 104 35 73 78 68 16 NM NM NM
263* NM 248* NM NM NM 184* NM NM NM NM 203* 172 NM NM NM NM 19 165
27 98 103 107 248* 120 144 100 243* 153 317* 57 205* 220* 83 21 144
NM NM NM 144 NM 189 NM 259* NM 83 22 130 26 133 168 135 183 240*
158 83 205* 23 178 NM NM 134 NM 210* 192* NM 26 223* 35 226* 141
166 91 27 NM NM NM NM 28 NM 183 216* NM 30 46 258* 208* 34 104 36
132 40 150 43 216* 47 51 54 55 62 64 75 90 The * designtion after a
value indicates that the animal was euthanized post measurement per
the experimental protocol (Example 10); NM indicates not
measured.
TABLE-US-00006 TABLE 3 Proportion of Surviving Mice Group A Group B
Group C Days Post (IT administration (SC administration (IT
administration Tumor of Example 3 of Example 3 of Vehicle Control
Implantation Formulation) Formulation) Formulation) 0 100 100 100
16 95 95 80 19 95 70 55 21 95 55 50 21 90 35 40 23 90 35 30 26 90
30 20 27 90 25 20 28 85 20 15 30 65 5 5 34 45 5 5 36 40 0 5 40 35 0
5 43 35 0 0 47 30 0 0 51 15 0 0 54 20 0 0 55 15 0 0 64 10 0 0 75 5
0 0 90 5 0 0
* * * * *