WO2011109232A1 - Compositions and methods for treating viral diseases - Google Patents
Compositions and methods for treating viral diseases Download PDFInfo
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- WO2011109232A1 WO2011109232A1 PCT/US2011/026174 US2011026174W WO2011109232A1 WO 2011109232 A1 WO2011109232 A1 WO 2011109232A1 US 2011026174 W US2011026174 W US 2011026174W WO 2011109232 A1 WO2011109232 A1 WO 2011109232A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
- A61K31/437—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/16—Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
Definitions
- pyrrolopyridines and methods for their use in treating viral diseases including hepatitis C viral infections.
- Hepatitis C belongs to the Flaviviridae family of positive-sense, single- stranded RNA viruses.
- the HCV genome encodes a protein having 3000 amino acid residues that is processed into both structural and nonstructural proteins.
- HCV infection is a significant global health issue; the World Health Organization estimates that over 170 million people carry the HCV infection, which can ultimately result in chronic hepatitis, cirrhosis, and hepatocellular carcinoma. It has been reported that these complications are responsible for about 10000-20000 deaths annually in the U.S. alone.
- HCV is one of the leading causes of advanced liver disease and often results in patients requiring liver transplantation.
- perhydro pyrrolopyridines are active antiviral agents.
- perhydro pyrrolopyridines are active against HCV infections.
- substituted perhydro pyrrolopyridines that are useful for the treatment of viral diseases including HCV.
- pharmaceutical compositions comprising the substituted perhydro pyrrolopyridines that are useful for the treatment of viral diseases including HCV.
- the compositions include one or more carriers, diluents, or excipients, or a combination thereof.
- described herein are methods for treating viral diseases including HCV, where the methods include administering the substituted perhydro pyrrolopyridines and/or the pharmaceutical compositions including the substituted perhydro pyrrolopyridines.
- described herein is the use of one or more of the substituted perhydro pyrrolopyridines and/or the pharmaceutical compositions including the substituted perhydro pyrrolopyridines in the manufacture of a medicament for treating a patient having a viral disease.
- the viral disease is hepatitis C.
- Ar 3 4-Cl-C 6 H 4 .
- substituted perhydro pyrrolopyridines including octahydro-lH-pyrrolo[3,2 ⁇ c]pyridines, are useful in treating viral diseases.
- pyrrolopyridines decrease viral load in infected cells.
- the viral diseases include hepatitis C viral infections.
- pyrrolopyridines as well as the various embodiments represented by the formulae described herein, generally refers to the parent compounds as well as pharmaceutically acceptable salts thereof, including acid and/or base addition salts.
- perhydro pyrrolopyridines includes various prodrugs of the compounds, as are described herein.
- compositions comprising one or more of the substituted perhydro pyrrolopyridines.
- the substituted perhydropyrrolopyridines and the pharmaceutical compositions comprising them are useful in the treatment of viral infections such as HCV.
- described herein are methods of use of the substituted perhydropyrrolopyridines and the pharmaceutical compositions comprising them for treating viral infections.
- these methods include administering to a patient in need of relief from the viral infection a therapeutically effective amount of one or more of the substituted perhydro pyrrolopyridines and/or the pharmaceutical compositions comprising them.
- the methods described herein also include co -therapies with other therapeutic agents known to be useful in treating viral infections including HCV.
- the compounds, compositions, formulations, uses, and methods described herein may be combined with any one or more of such compounds or agents known for treating viral diseases, such as HCV infections.
- the co- therapy includes the co-administration of one or more of the compounds described herein and one or more of the known compounds or agents known to be useful in treating viral infections including HCV.
- alkyl includes a chain of carbon atoms, which is optionally branched.
- alkenyl and alkynyl includes a chain of carbon atoms, which is optionally branched, and includes at least one double bond or triple bond, respectively. It is to be understood that alkynyl may also include one or more double bonds. It is to be further understood that in certain embodiments, alkyl is advantageously of limited length, including Q-C24, Ci-C 12 , Ci-C 8 , Q-Ce, and C1-C4.
- alkenyl and/or alkynyl may each be advantageously of limited length, including C 2 -C 24 , C 2 -C] 2 , C 2 -Cs, C 2 -C6, and C 2 -C4. It is appreciated herein that shorter alkyl, alkenyl, and/or alkynyl groups may add less lipophilicity to the compound and accordingly will have different pharmacokinetic behavior.
- Illustrative alkyl groups are, but not limited to, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, 2-pentyl, 3-pentyl, neopentyl, hexyl, heptyl, octyl and the like.
- heteroalkyl includes a chain of atoms that includes both carbon and at least one heteroatom, and is optionally branched.
- Illustrative heteroatoms include nitrogen, oxygen, and sulfur. In certain variations, illustrative heteroatoms also include phosphorus, and selenium.
- cycloalkyl includes a chain of carbon atoms, which is optionally branched, where at least a portion of the chain in cyclic. It is to be understood that cycloalkylalkyl is a subset of cycloalkyl. It is to be understood that cycloalkyl may be polycyclic. Illustrative cycloalkyl include, but are not limited to, cyclopropyl, cyclopentyl, cyclohexyl, 2-methylcyclopropyl, cyclopentyleth-2-yl, adamantyl, and the like.
- cycloalkenyl includes a chain of carbon atoms, which is optionally branched, and includes at least one double bond, where at least a portion of the chain in cyclic. It is to be understood that the one or more double bonds may be in the cyclic portion of cycloalkenyl and/or the non-cyclic portion of cycloalkenyl. It is to be understood that cycloalkenylalkyl and cycloalkylalkenyl are each subsets of cycloalkenyl. It is to be understood that cycloalkyl may be polycyclic.
- Illustrative cycloalkenyl include, but are not limited to, cyclopentenyl, cyclohexylethen-2-yl, cycloheptenylpropenyl, and the like. It is to be further understood that chain forming cycloalkyl and/or cycloalkenyl is advantageously of limited length, including C3-C24, C3-C 12 , C 3 -C8, C 3 -C6, and C 5 -Ce. It is appreciated herein that shorter alkyl and/or alkenyl chains forming cycloalkyl and/or cycloalkenyl, respectively, may add less lipophilicity to the compound and accordingly will have different
- cycloheteroalkyl including heterocyclyl and heterocycle, includes a chain of atoms that includes both carbon and at least one heteroatom, such as heteroalkyl, and is optionally branched, where at least a portion of the chain is cyclic.
- illustrative heteroatoms include nitrogen, oxygen, and sulfur. In certain variations, illustrative heteroatoms also include phosphorus, and selenium.
- Illustrative cycloheteroalkyl include, but are not limited to, tetrahydrofuryl, pyrrolidinyl, tetrahydropyranyl, piperidinyl, morpholinyl, piperazinyl, homopiperazinyl, quinuclidinyl, and the like.
- aryl includes monocyclic and polycyclic aromatic carbocyclic groups, each of which may be optionally substituted.
- Illustrative aromatic carbocyclic groups described herein include, but are not limited to, phenyl, naphthyl, and the like.
- heteroaryl includes aromatic heterocyclic groups, each of . which may be optionally substituted.
- Illustrative aromatic heterocyclic groups include, but are not limited to, pyridinyl, pyrimidinyl, pyrazinyl, triazinyl, tetrazinyl, quinolinyl, quinazolinyl, quinoxalinyl, thienyl, pyrazolyl, imidazolyl, oxazolyl, thiazolyl, isoxazolyl, isothiazolyl, oxadiazolyl, thiadiazolyl, triazolyl, benzimidazolyl, benzoxazolyi, benzthiazolyl, benzisoxazolyl, benzisothiazolyl, and the like.
- acyl includes formyl, and alkylcarbonyl, alkenylcarbonyl, alkynylcarbonyl, heteroalkylcarbonyl, heteroalkenylcarbonyl,
- heteroalkynylcarbonyl cycloalkylcarbonyl, cycloalkenylcarbonyl, cycloheteroalkylcarbonyl, cycloheteroalkenylcarbonyl, arylcarbonyl, arylalkylcarbonyl, arylalkenylcarbonyl, arylalkynylcarbonyl, heteroarylcarbonyl, heteroarylalkylcarbonyl, heteroarylalkenylcarbonyl, heteroarylalkynylcarbonyl, acylcarbonyl, and the like, each of which is optionally substituted.
- carbonyl and derivatives thereof includes the group C(O), C(S), C(NH) and substituted amino derivatives thereof.
- Such other functional groups illustratively include, but are not limited to, amino, hydroxyl, halo, thiol, alkyl, haloalkyl, heteroalkyl, aryl, arylalkyl, arylheteroalkyl, heteroaryl, heteroarylalkyl, heteroarylheteroalkyl, nitro, sulfonic acids and derivatives thereof, carboxylic acids and derivatives thereof, and the like.
- any of amino, hydroxyl, thiol, alkyl, haloalkyl, heteroalkyl, aryl, arylalkyl, arylheteroalkyl, heteroaryl, heteroarylalkyl, heteroarylheteroalkyl, and/or sulfonic acid is optionally substituted.
- the terms “optionally substituted aryl” and “optionally substituted heteroaryl” include the replacement of hydrogen atoms with other functional groups on the aryl or heteroaryl that is optionally substituted.
- Such other functional groups illustratively include, but are not limited to, amino, hydroxy, halo, thio, alkyl, haloalkyl, heteroalkyl, aryl, arylalkyl, arylheteroalkyl, heteroaryl, heteroaiylalkyl, heteroarylheteroalkyl, nitro, sulfonic acids and derivatives thereof, carboxylic acids and derivatives thereof, and the like.
- any of amino, hydroxy, thio, alkyl, haloalkyl, heteroalkyl, aryl, arylalkyl, arylheteroalkyl, heteroaryl, heteroarylalkyl, heteroarylheteroalkyl, and/or sulfonic acid is optionally substituted.
- prodrug generally refers to any compound that when administered to a biological system generates a biologically active compound as a result of one or more spontaneous chemical reaction(s), enzyme-catalyzed chemical reaction(s), and/or metabolic chemical reaction(s), or a combination thereof.
- the prodrug is typically acted upon by an enzyme (such as esterases, amidases, phosphatases, and the like), simple biological chemistry, or other process in vivo to liberate or regenerate the more pharmacologically active drug. This activation may occur through the action of an endogenous host enzyme or a non-endogenous enzyme that is administered to the host preceding, following, or during administration of the prodrug.
- prodrug use is described in U.S. Pat. No. 5,627,165; and Pathalk et al., Enzymic protecting group techniques in organic synthesis, Stereosel. Biocatal. 775-797 (2000). It is appreciated that the prodrug is advantageously converted to the original drug as soon as the goal, such as targeted delivery, safety, stability, and the like is achieved, followed by the subsequent rapid elimination of the released remains of the group forming the prodrug.
- Prodrugs may be prepared from the compounds described herein by attaching groups that ultimately cleave in vivo to one or more functional groups present on the compound, such as -OH-, -SH, -C0 2 H, -NR 2 .
- Illustrative prodrugs include but are not limited to carboxylate esters where the group is alkyl, aryl, aralkyl, acyloxyalkyl,
- alkoxycarbonyloxyalkyl as well as esters of hydroxyl, thiol and amines where the group attached is an acyl group, an alkoxycarbonyl, aminocarbonyl, phosphate or sulfate.
- esters also referred to as active esters, include but are not limited to 1 -indanyl, N- oxysuccinimide; acyloxyalkyl groups such as acetoxymethyl, pivaloyloxymethyl, ⁇ -acetoxyethyl, ⁇ -pivaloyloxyethyl, l-(cyclohexylcarbonyloxy)prop-l-yl, (1
- alkoxycarbonyloxyalkyl groups such as ethoxycarbonyloxymethyl, a-ethoxycarbonyloxyethyl, ⁇ -ethoxycarbonyloxyethyl, and the like
- dialkylaminoalkyl groups including di-lower alkylamino alkyl groups, such as dimethylaminomethyl, dimethylaminoethyl, diethylaminomethyl, diethylaminoethyl, and the like
- 2-(alkoxycarbonyl)-2-alkenyl groups such as 2-(isobutoxycarbonyl) pent-2-enyl, 2-(ethoxycarbonyl)but-2-enyl, and the like
- lactone groups such as phthalidyl, dimethoxyphthalidyl, and the like.
- prodrugs themselves may not possess significant biological activity, but instead undergo one or more spontaneous chemical reaction(s), enzyme-catalyzed chemical reaction(s), and/or metabolic chemical reaction(s), or a combination thereof after administration in vivo to produce the compound described herein that is biologically active or is a precursor of the biologically active compound.
- the prodrug is biologically active.
- prodrugs may often serves to improve drug efficacy or safety through improved oral bioavailability, pharmacodynamic half-life, and the like.
- Prodrugs also refer to derivatives of the compounds described herein that include groups that simply mask undesirable drug properties or improve drug delivery.
- one or more compounds described herein may exhibit an undesirable pro erty that is advantageously blocked or minimized may become pharmacological, pharmaceutical, or pharmacokinetic barriers in clinical drug application, such as low oral drug absorption, lack of site specificity, chemical instability, toxicity, and poor patient acceptance (bad taste, odor, pain at injection site, and the like), and others. It is appreciated herein that a prodrug, or other strategy using reversible derivatives, can be useful in the optimization of the clinical application of a drug.
- therapeutically effective amount refers to that amount of active compound or pharmaceutical agent that elicits the biological or medicinal response in a tissue system, animal or human that is being sought by a researcher, veterinarian, medical doctor or other clinician, which includes alleviation of the symptoms of the disease or disorder being treated.
- the therapeutically effective amount is that which may treat or alleviate the disease or symptoms of the disease at a reasonable benefit/risk ratio applicable to any medical treatment.
- the total daily usage of the compounds and compositions described herein may be decided by the attending physician within the scope of sound medical judgment.
- the specific therapeutically-effective dose level for any particular patient will depend upon a variety of factors, including the disorder being treated and the severity of the disorder; activity of the specific compound employed; the specific composition employed; the age, body weight, general health, gender and diet of the patient: the time of administration, route of
- the therapeutically effective amount is advantageously selected with reference to any toxicity, or other undesirable side effect, that might occur during administration of one or more of the compounds described herein.
- the co-therapies described herein may allow for the administration of lower doses of compounds that show such toxicity, or other undesirable side effect, where those lower doses are below thresholds of toxicity or lower in the therapeutic window than would otherwise be administered in the absence of a cotherapy,
- composition generally refers to any product comprising the specified ingredients in the specified amounts, as well as any product which results, directly or indirectly, from combinations of the specified ingredients in the specified amounts. It is to be understood that the compositions described herein may be prepared from isolated compounds described herein or from salts, solutions, hydrates, solvates, and other forms of the compounds described herein. It is also to be understood that the compositions may be prepared from various amorphous, non-amorphous, partially crystalline, crystalline, and/or other morphological forms of the compounds described herein. It is also to be understood that the compositions may be prepared from various hydrates and/or solvates of the compounds described herein.
- compositions that recite compounds described herein are to be understood to include each of, or any combination of, the various morphological forms and/or solvate or hydrate forms of the compounds described herein.
- compositions may include one or more carriers, diluents, and/or excipients.
- the compounds described herein, or compositions containing them, may be formulated in a therapeutically effective amount in any conventional dosage forms appropriate for the methods described herein.
- compositions containing them may be administered by a wide variety of conventional routes for the methods described herein, and in a wide variety of dosage form'ats, utilizing known procedures (see generally, Remington: The Science and Practice of Pharmacy, (21 st ed., 2005)).
- administering includes all means of introducing the compounds and compositions described herein to the patient, including, but are not limited to, oral (po), intravenous (iv), intramuscular (im), subcutaneous (sc), transdermal, inhalation, buccal, ocular, sublingual, vaginal, rectal, and the like.
- the compounds and compositions described herein may be administered in unit dosage forms and/or formulations containing conventional nontoxic pharmaceutically-acceptable carriers, adjuvants, and vehicles.
- a compound for treating a patient having hepatitis C said compound of formula I or a pharmaceutically acceptable salt thereof, wherein:
- R 1 is arylalkyl or arylacyl, each of which is optionally substituted;
- R 2 is hydrogen, alkyl, heteroalkyl, cycloalkyl, cycloheteroalkyl, aryl, or arylalkyl, each of which is optionally substituted;
- R 3 is arylalkyl or arylacyl, each of which is optionally substituted
- R 4 is hydrogen, alkyl, heteroalkyl, cycloalkyl, cycloheteroalkyl, aryl, or arylalkyl, each of which is optionally substituted.
- composition comprising the compound of formula I above, or a pharmaceutically acceptable salt thereof.
- stereochemistry of the ring fusion of the compound of formula I is syn. In another embodiment, the stereochemistry of the ring fusion of the compound of formula I is as follows:
- stereochemistry of the ring fusion of the compound of formula I is as follows:
- stereochemistry of the ring fusion and C-3 of the compound of formula I are as follows:
- stereochemistry of the ring fusion of the com ound of formula I is as follows:
- the substituents R 1 , R 2 , R 3 , and R 4 of the compounds of formula I described herein, including all stereochemical variations of the compounds described herein, are each independently selected from the following hereinbelow.
- the substituent R 1 of the compound of formula I described herein is optionally substituted arylacyl.
- the substituent R 1 of the compound of formula I described herein is an optionally substituted arylcarbonyl.
- the substituent R 1 of the compound of formula I described herein is an optionally substituted benzoyl.
- the substituent R 1 of the compound of formula I described herein is benzoyl.
- the substituent R 1 of the compound of formula I described herein is optionally substituted picolinoyl. In another embodiment, the substituent R 1 of the compound of formula I described herein is picolinoyl. In another embodiment, the substituent R 2 of the compound of formula I described herein is optionally substituted aryl. In another embodiment, the substituent R 2 of the compound of formula I described herein is optionally substituted phenyl. In another embodiment, the substituent R 2 of the compound of formula I described herein is phenyl substituted with halo, alkoxy, or a combination thereof. In another embodiment, the substituent R 3 of the compound of formula I described herein is optionally substituted arylalkyl. In another embodiment, the substituent R 3 of the compound of formula I described herein is optionally substituted arylmethylene. In another embodiment,
- the substituent R 3 of the compound of formula I described herein is optionally substituted benzyl. In another embodiment, the substituent R 3 of the compound of formula I described herein is benzyl substituted with an electron withdrawing group. In another embodiment, the substituent R 3 of the compound of formula I described herein is halo substituted benzyl. In another embodiment, the substituent R 4 of the compound of formula I described herein is hydrogen or alkyl. In another embodiment, the substituent R 4 of the compound of formula I described herein is hydrogen. In another embodiment, the substituent R 2 of the compound of formula I described herein is at C-3.
- described herein is the use of one or more of the compounds described herein in the manufacture of a medicament for treating a patient having a viral disease.
- the viral disease is hepatitis C.
- described herein is a method for treating a patient having a viral disease, illustratively hepatitis C, and the like, the method comprising the step of administering to the patient a therapeutically effective amount of one or more of the compounds described herein alone or as a composition with one or more carriers, diluents, or excipients, or a combination thereof.
- each of the foregoing selections for R s , R 2 , R 3 , and R 4 are described herein for each of the stereochemical embodiments of formula I, It is to be further understood that each of the foregoing selections for R 1 , R 2 , R 3 , and R 4 may be combined with each other in every possible combination, each of which forms a description of a further illustrative embodiment of the invention.
- described herein are compounds of formula I, including any of the stereochemical embodiments of formula I, where R 1 is an optionally substituted arylacyl and R 2 is optionally substituted aryl.
- EXAMPLE Test Compounds.
- the substituted perhydropyrrolopyridines described herein are obtained from commercial suppliers (>90% purity) and used as is.
- METHOD EXAMPLE Chimeric Mouse Model.
- the mouse model used herein is similar to those previously described in Kneteman et al., Hepatology, 2006, 43, 1346 and Kneteman et al., Hepatology, 2009, 49, 745.
- the animals used are homozygous albumin (Alb)-urokinase plasminogen activator (uPA)/severe combined irnmunodeficient (SCID) mice, and are housed in a virus-free/antigen-free environment until ready for use.
- Alb homozygous albumin
- uPA urokinase plasminogen activator
- SCID irnmunodeficient mice
- METHOD EXAMPLE Isolation and Transplantation of Human Hepatocytes. Segments of human liver tissue (-20 cm3) are flushed with cold phosphate-buffered saline and rapidly transported to the tissue isolation laboratory. Hepatocytes are isolated and purified using collagenase-based perfusion with 0.38 mg/ml Liberase CI solution (Boehringer Mannheim), using techniques described in Mercer et al., Hepatitis C virus replication in mice with chimeric human livers, Nat. Med. 2001 , 7, 927-933.
- Recipient mice (5-14 days old uPA/SCID mice) are anesthetized with haiothane/02, and 1 x 106 viable hepatocytes are injected into the inferior pole of the spleen. The hepatocytes then transit on their own to the liver where they implant and expand.
- METHOD EXAMPLE Human a-1 Antitrypsin Analysis.
- Human ct-1 antitrypsin (hAAT) analysis is used to confirm stable ongoing function of the human hepatocyte grafts and to determine whether any change in HCV titer is attributable to hepatocyte death or injury.
- Mouse serum is analyzed by sandwich enzyme-linked
- METHOD EXAMPLE HCV Isolation and Quantitation.
- Murine serum analysis is performed in blinded fashion using the Cobas Amplicor HCV Monitor system (Roche Diagnostics). Lower limit of quantification is 600 lU/ml.
- Viral RNA is extracted using Buffer AVL from Qiagen (19073) according to the manufacturer's instructions. The 2011/026174
- RNA is transcribed to cDNA with a HCV specific primer
- RNA to cDNA kit (Applied Biosystems, #4369016) with a High Capacity RNA to cDNA kit (Applied Biosystems, #4369016) according to the manufacturer's directions.
- RT- PCR is performed using an ⁇ 7300 Real Time PCR system and Taqman chemistry, with all measurements done in duplicate.
- 6-FAM-CACCCTATCAGGCAGTACCACAAGGCC- TAMRA (SEQ ID NO: 2) is used as the HCV specific detection probe and a primer set detecting the conserved 5'UTR region of HCV (5 ' -TGCGGA ACCGGTGAGTAC A (SEQ ID NO: 3), 5 ' -AGGTTTAGGATTCGTGCTCAT (SEQ ID NO: 4)).
- pCV-H77c Optiquant
- mice are screened for serum hAAT, and animals above a 100- ⁇ cutoff are inoculated by intraperitioneal injection with 100 ⁇ g genotype la HCV-laden human serum (approximately 2 x 10 5 copies/mL). Baseline HCV levels are obtained at 1 and 2 weeks after inoculation, and mice with titers above 2 x 10 4 copies/mL are allocated to experimental groups. Allocation is sought to balance groups for HCV titers, hAAT levels, sex, and weight with decreasing priority.
- METHOD EXAMPLE The following protocol is used for the evaluation of PK parameters and tolerance of the animals for the test compound.
- the protocol includes three escalating dose levels for each of the compounds administered at a volume of 5 mL/kg once a day by intra-peritoneal (IP) injection. The tolerance is determined over a fourteen day treatment course.
- the study animals include three 5 -mouse groups. Also included is one 5- mouse control group injected with 5 mL kg of a vehicle.
- the mouse groups include both male and female 3 -month old mice, such as murine KMT miceTM, with a weight range of >12.0 g.
- Blood samples are drawn via the central tail artery of the animal for measurement of serum concentrations of the substituted perhydro pyrrolopyridines on the morning of Day 8 immediately prior to the compound dose (trough sample 24 hours post the Day 7 dose) and on the morning of Day 15 (trough sample 24 hours post the final Day 14 dose).
- a volume of approximately 100 uL is collected into tubes, allowed to clot at 2-8°C, centrifuged, and the serum removed from above the clot pellet and stored frozen at -80°C until ready for concentration measurement.
- METHOD EXAMPLE The following protocol is used for efficacy evaluation of the substituted perhydro pyrrolopyridines against HCV infection.
- the protocol includes three dose levels that are selected based on the tolerability and PK results from the study described herein.
- the efficacy of each substituted perhydro pyrrolopyridine is determined over a fourteen day treatment course and seven day follow-up period employing three escalating dose levels of drug administered at a volume of 5 mL/kg once a day by intraperitoneal injection.
- the study animals include three 5-mouse groups.
- mice groups include both male and female 3- month old mice, such as murine KMT miceTM, with a weight range of > 12.0 g. Blood samples are drawn via the central tail artery for measurement of baseline serum
- METHOD EXAMPLE Assay for Anti-HCV Efficacy.
- HCV studies involved mainly infected patients and chimpanzees.
- a robust HCV infection system was developed with cells derived from the Huh-7 human hepatoma cell line (see, for example, Yu et aL, "Development of a cell-based hepatitis C virus infection fluorescent resonance energy transfer assay for high-throughput antiviral compound screening" Antimicrob Agents Chemother.
- the Huh7-1 cultures are incubated with fresh 1% Medium (same as 10% Medium except that the serum level is 1%) containing HCV at a multiplicity of infection (MOI) of 0.05 focus forming units (ffu)/cell.
- MOI multiplicity of infection
- the HCV (JFH-lwt Huh7) stock titer is 1.5x10 5 ffu/mL.
- the media are replenished with fresh 1% Medium containing the test compounds dissolved in DMSO.
- cell lysates are collected for RNA isolation and Real Time-quantitative Reverse Transcription Polymerase Chain Reaction (RT-qPCR) and culture media are collected for cytotoxicity analysis.
- RNA is isolated from cells by the guanidine thiocyanate method using standard protocols.
- One ⁇ g RNA is used for cDNA synthesis using TaqMan reverse transcription reagents (Applied Biosystems, Foster City, CA) followed by real-time PCR using an Applied Biosystems 7300 real-time thermocycler.
- Illustrative thermal cycling consists of initial denaturation of 10 min at 95 °C followed by 40 cycles of denaturation (15s at 95 °C) and annealing/extension (lm at 60 °C).
- GAPDH human glyceraldehyde-3- phosphate dehydrogenase
- Test compounds were also evaluated in a conventional cytotoxicity assay. In each case, the test compound did not exhibit cytotoxicity at 5 ⁇ . It is appreciated that the lack of cyctoxicity supports the conclusion that the test compound activity in reducing viral titer is specific to the viral disease.
- Figures 1-7 illustrate the intracellular HCV RNA levels when cultures are incubated with the selected test compounds at the doses shown.
- HCV RNA levels are compared among the samples, the data may indicate that the compounds cause a dose dependent decrease in HCV RNA levels relative to the mock-treated (no compound added) HCV infected control. 4
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Priority Applications (9)
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US13/582,277 US9056099B2 (en) | 2010-03-01 | 2011-02-25 | Compositions and methods for treating viral diseases |
EP11751104.8A EP2542240B1 (en) | 2010-03-01 | 2011-02-25 | Compositions and methods for treating viral diseases |
JP2012556115A JP5907564B2 (en) | 2010-03-01 | 2011-02-25 | Compositions and methods for the treatment of viral diseases |
CN201180010373.1A CN102781448B (en) | 2010-03-01 | 2011-02-25 | Compositions and methods for treating viral diseases |
CA2791884A CA2791884C (en) | 2010-03-01 | 2011-02-25 | Compositions and methods for treating viral diseases |
AU2011223945A AU2011223945B2 (en) | 2010-03-01 | 2011-02-25 | Compositions and methods for treating viral diseases |
NZ601661A NZ601661A (en) | 2010-03-01 | 2011-02-25 | Compositions and methods for treating viral diseases |
IL221399A IL221399A (en) | 2010-03-01 | 2012-08-09 | Compositions for treating viral diseases |
ZA2012/07226A ZA201207226B (en) | 2010-03-01 | 2012-09-27 | Compositions and methods for treating viral diseases |
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Cited By (3)
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CN102816871A (en) * | 2012-09-10 | 2012-12-12 | 广州达健生物科技有限公司 | Fluorescence quantitation PCR (Polymerase Chain Reaction) detection kit for hepatitis c viruses (HCV) |
WO2013028890A1 (en) * | 2011-08-24 | 2013-02-28 | Novadrug, Llc | Compositions and methods for treating viral diseases |
US9056099B2 (en) | 2010-03-01 | 2015-06-16 | Novadrug, Llc | Compositions and methods for treating viral diseases |
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NZ601661A (en) | 2010-03-01 | 2014-08-29 | Novadrug Llc | Compositions and methods for treating viral diseases |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9056099B2 (en) | 2010-03-01 | 2015-06-16 | Novadrug, Llc | Compositions and methods for treating viral diseases |
WO2013028890A1 (en) * | 2011-08-24 | 2013-02-28 | Novadrug, Llc | Compositions and methods for treating viral diseases |
US9241930B2 (en) | 2011-08-24 | 2016-01-26 | Novadrug, Llc | Compositions and methods for treating viral diseases |
AU2012298777B2 (en) * | 2011-08-24 | 2016-11-03 | Novadrug, Llc | Compositions and methods for treating viral diseases |
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CN102781448B (en) | 2015-01-21 |
ZA201207226B (en) | 2014-12-23 |
US20130059881A1 (en) | 2013-03-07 |
JP2013521284A (en) | 2013-06-10 |
IL221399A (en) | 2016-06-30 |
JP5907564B2 (en) | 2016-04-26 |
EP2542240A4 (en) | 2013-06-12 |
EP2542240A1 (en) | 2013-01-09 |
EP2542240B1 (en) | 2017-04-05 |
NZ601661A (en) | 2014-08-29 |
CA2791884A1 (en) | 2011-09-09 |
CN102781448A (en) | 2012-11-14 |
CA2791884C (en) | 2018-04-24 |
AU2011223945A1 (en) | 2012-08-30 |
US9056099B2 (en) | 2015-06-16 |
AU2011223945B2 (en) | 2015-02-12 |
IL221399A0 (en) | 2012-10-31 |
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