Sofosbuvir
Identification
- Summary
Sofosbuvir is a direct-acting antiviral agent used to treat specific hepatitis C virus (HCV) infections in combination with other antiviral agents.
- Brand Names
- Epclusa, Harvoni, Sovaldi, Vosevi
- Generic Name
- Sofosbuvir
- DrugBank Accession Number
- DB08934
- Background
Sofosbuvir (tradename Sovaldi) is a direct acting antiviral medication used as part of combination therapy to treat chronic Hepatitis C, an infectious liver disease caused by infection with Hepatitis C Virus (HCV). HCV is a single-stranded RNA virus that is categorized into nine distinct genotypes, with genotype 1 being the most common in the United States, and affecting 72% of all chronic HCV patients 14. Treatment options for chronic Hepatitis C have advanced significantly since 2011, with the development of Direct Acting Antivirals (DAAs) such as sofosbuvir. As a prodrug nucleotide analog, Sofosbuvir is metabolized into its active form as the antiviral agent 2'-deoxy-2'-α-fluoro-β-C-methyluridine-5'-triphosphate (also known as GS-461203), which acts as a defective substrate for NS5B (non-structural protein 5B) Synthesis. NS5B, an RNA-dependent RNA polymerase, is essential for the transcription of Hepatitis C viral RNA and for its high replicative rate and genetic diversity 4. Sofosbuvir and other direct acting antivirals are therefore very potent options for the treatment of Hepatitis C, as they exhibit a high barrier to the development of resistance 5. This is an important advantage relative to HCV drugs that target other viral enzymes such as the protease, for which rapid development of resistance has proven to be an important cause of therapeutic failure.
In a joint recommendation published in 2016, the American Association for the Study of Liver Diseases (AASLD) and the Infectious Diseases Society of America (IDSA) recommend Sofosbuvir as first line therapy in combination with other antivirals for all six genotypes of Hepatitis C 14. Depending on the genotype, sofosbuvir is often used in combination with other antivirals such as Ledipasvir, Velpatasvir, Daclatasvir, Simeprevir, Elbasvir, Grazoprevir, Ribavirin, Peginterferon alfa-2a, or Peginterferon alfa-2b with the intent to cure, or achieve a sustained virologic response (SVR), after 12 weeks of daily therapy. SVR and eradication of HCV infection is associated with significant long-term health benefits including reduced liver-related damage, improved quality of life, reduced incidence of Hepatocellular Carcinoma, and reduced all-cause mortality 6. Treatment with direct acting antivirals such as sofosbuvir is associated with very minimal side effects, with the most common being headache and fatigue Label. Lack of significant side effects and short duration of therapy is a considerable advantage over older interferon- and ribavirin-based regimens, which were limited by infusion site reactions, reduced blood count, and neuropsychiatric effects 11.
Since 2014, sofosbuvir has been available as a fixed dose combination product with Ledipasvir (tradename Harvoni) used for the treatment of chronic Hepatitis C. Approved in October 2014 by the FDA, Harvoni is indicated for the treatment of HCV genotypes 1, 4, 5, and 6 with or without Ribavirin depending on the level of liver damage or cirrhosis Label. When combined together, ledipasvir and sofosbuvir as the combination product Harvoni has been shown to achieve a SVR between 93 and 99% after 12 weeks of treatment 3. Its use has also proven successful in the treatment of HCV in patients co-infected with HIV 7.
Sofosbuvir is also available as a fixed dose combination product with Velpatasvir as the commercially available product Epclusa. First approved in June 2016, Epclusa is the first combination HCV product indicated for the treatment of all genotypes of Hepatitis C with or without cirrhosis. Epclusa is also currently the most potent HCV antiviral medication on the market with a sustained virologic response (SVR) after 12 weeks of therapy of 93-99% depending on genotype and level of cirrhosis 14. Both Canadian and American guidelines list Epclusa as a first line recommendation for all genotypes of HCV 14,6.
Notably, sofosbuvir has come under intense scrutiny since its release to market in 2013. With the price per pill set at $1000, a 12-week treatment can cost upwards of $84,000 per patient 12.
- Type
- Small Molecule
- Groups
- Approved
- Structure
- Weight
- Average: 529.458
Monoisotopic: 529.162544687 - Chemical Formula
- C22H29FN3O9P
- Synonyms
- S)-Isopropyl 2-((S)-(((2R,3R,4R,5R)-5-(2,4-dioxo-3,4- dihydropyrimidin-1(2H)-yl)-4-fluoro-3-hydroxy-4-methyltetrahydrofuran-2-yl)methoxy)- (phenoxy)phosphorylamino)propanoate
- Sofosbuvir
- External IDs
- GI 7977
- GI-7977
- GI7977
- GS 331007
- GS 461203
- GS-331007
- GS-461203
- GS-7977
- GS331007
- GS461203
- GS7977
- PSI 7977
- PSI-7977
- PSI7977
Pharmacology
- Indication
Sofosbuvir is used in combination therapy with other antiviral medications to treat chronic hepatitis C virus (HCV) infected patients with HCV genoptypes 1-6, and to treat HCV and HIV co-infected patients. Depending on the level of cirrhosis or decompensation, combination therapy can also include either ribavirin alone or ribavirin and peg-interferon alfa.
When used in combination with Ledipasvir, sofosbuvir has the following indications: treatment of genotypes 1, 4, 5, or 6 infection without cirrhosis or with compensated cirrhosis; in combination with Ribavirin for genotype 1 infection with decompensated cirrhosis; or in combination with Ribavirin for the treatment of genotype 1 or 4 infection who are liver transplant recipients without cirrhosis or with compensated cirrhosis.
When used in combination with Velpatasvir as the combination product Epclusa, sofosbuvir is indicated for the treatment of adult patients with chronic hepatitis C virus (HCV) genotypes 1, 2, 3, 4, 5, or 6 infection without cirrhosis or with compensated cirrhosis, or in combination with Ribavirin if associated with decompensated cirrhosis.
Resistance: Reduced susceptibility to sofosbuvir has been associated with the NS5B substitution mutation S282T 10.
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- Contraindications & Blackbox Warnings
- Avoid life-threatening adverse drug eventsImprove clinical decision support with information on contraindications & blackbox warnings, population restrictions, harmful risks, & more.Avoid life-threatening adverse drug events & improve clinical decision support.
- Pharmacodynamics
Sofosbuvir acts against HCV and is categorized as a direct-acting antiviral agent (DAA).
At a dose 3 times the recommended dose, sofosbuvir does not prolong QTc to any clinically relevant extent Label.
- Mechanism of action
Sofosbuvir is nucleotide analog inhibitor, which specifically inhibits HCV NS5B (non-structural protein 5B) RNA-dependent RNA polymerase. Following intracellular metabolism to form the pharmacologically active uridine analog triphosphate (GS-461203), sofosbuvir incorporates into HCV RNA by the NS5B polymerase and acts as a chain terminator Synthesis,2. More specifically, Sofosbuvir prevents HCV viral replication by binding to the two Mg2+ ions present in HCV NS5B polymerase's GDD active site motif and preventing further replication of HCV genetic material 13,Label.
Target Actions Organism ARNA-dependent RNA-polymerase inhibitorHepatitis C Virus - Absorption
When given orally, sofosbuvir reaches its maximum plasma concentration in about 0.5 to 2 hours with a maximal concentration (Cmax) of 567 ng/mL Label.
- Volume of distribution
The volume of distribution for sofosbuvir has yet to be determined Label.
- Protein binding
Sofosbuvir is approximately 61-65% bound to human plasma proteins Label.
- Metabolism
In vitro studies in human liver microsomes showed that sofosbuvir was an efficient substrate for Cathepsin A (Cat A) and carboxyl esterase 1 (CES1). Sofosbuvir was cleaved by CatA and CES1 and subsequent activation steps included amino acid removal by histidine triad nucleotide-binding protein 1 (HINT1) and phosphorylation by uridine monophosphate-cytidine monophosphate (UMP-CMP) kinase and nucleoside diphosphate (NDP) kinase. In vitro data indicated that Cat A preferentially hydrolysed sofosbuvir (the S-diastereomer) while CES1 did not exhibit stereoselectivity 8,9.
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- Route of elimination
Sofosbuvir is eliminated by three routes: urine ( 80%), feces (14%), and respiration (2.5%); however, elimination through the kidneys is the major route Label.
- Half-life
Sofosbuvir has a terminal half life of 0.4 hours Label.
- Clearance
The clearance of sofosbuvir has yet to be determined Label.
- Adverse Effects
- Improve decision support & research outcomesWith structured adverse effects data, including: blackbox warnings, adverse reactions, warning & precautions, & incidence rates.Improve decision support & research outcomes with our structured adverse effects data.
- Toxicity
Sofosbuvir, as a single agent, has very mild toxicity. The most common adverse reactions are headache and fatigue. The FDA Label currently warns of a risk of symptomatic bradycardia when Epclusa is used in combination with amiodarone Label.
- Pathways
- Not Available
- Pharmacogenomic Effects/ADRs
- Not Available
Interactions
- Drug Interactions
- This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.
Drug Interaction Integrate drug-drug
interactions in your softwareAbacavir Abacavir may decrease the excretion rate of Sofosbuvir which could result in a higher serum level. Abemaciclib Abemaciclib may decrease the excretion rate of Sofosbuvir which could result in a higher serum level. Abrocitinib The serum concentration of Sofosbuvir can be increased when it is combined with Abrocitinib. Aceclofenac Aceclofenac may decrease the excretion rate of Sofosbuvir which could result in a higher serum level. Acemetacin Acemetacin may decrease the excretion rate of Sofosbuvir which could result in a higher serum level. Acetaminophen Acetaminophen may decrease the excretion rate of Sofosbuvir which could result in a higher serum level. Acetazolamide Acetazolamide may increase the excretion rate of Sofosbuvir which could result in a lower serum level and potentially a reduction in efficacy. Acetylsalicylic acid Acetylsalicylic acid may decrease the excretion rate of Sofosbuvir which could result in a higher serum level. Aclidinium Aclidinium may decrease the excretion rate of Sofosbuvir which could result in a higher serum level. Acrivastine Sofosbuvir may decrease the excretion rate of Acrivastine which could result in a higher serum level. Identify potential medication risksEasily compare up to 40 drugs with our drug interaction checker.Get severity rating, description, and management advice.Learn more - Food Interactions
- Take with or without food.
Products
- Drug product information from 10+ global regionsOur datasets provide approved product information including:dosage, form, labeller, route of administration, and marketing period.Access drug product information from over 10 global regions.
- International/Other Brands
- Hepcinat (Natco Pharma Ltd.) / Hepcvir (Cipla Limited) / Resof (Hetero Drugs Ltd ) / SoviHep (Zydus Cadila)
- Brand Name Prescription Products
Name Dosage Strength Route Labeller Marketing Start Marketing End Region Image Sovaldi Pellet 150 mg Oral Gilead Sciences Ireland Uc 2020-12-22 Not applicable EU Sovaldi Tablet 400 mg Oral Gilead Sciences 2014-01-06 Not applicable Canada Sovaldi Tablet, film coated 400 mg Oral Gilead Sciences Ireland Uc 2016-09-08 Not applicable EU Sovaldi Tablet, film coated 200 mg/1 Oral Gilead Sciences, Inc. 2019-08-28 Not applicable US Sovaldi Tablet, film coated 200 mg Oral Gilead Sciences Ireland Uc 2020-12-22 Not applicable EU Sovaldi Pellet 200 mg/1 Oral Gilead Sciences, Inc. 2019-08-28 Not applicable US Sovaldi Tablet 200 mg Oral Gilead Sciences Ireland Uc 2020-12-22 Not applicable EU Sovaldi Tablet, film coated 400 mg/1 Oral Gilead Sciences, Inc. 2013-12-06 Not applicable US Sovaldi Tablet, film coated 400 mg Oral Gilead Sciences Ireland Uc 2016-09-08 Not applicable EU Sovaldi Pellet 150 mg/1 Oral Gilead Sciences, Inc. 2019-08-28 Not applicable US - Mixture Products
Name Ingredients Dosage Route Labeller Marketing Start Marketing End Region Image Epclusa Sofosbuvir (200 mg/1) + Velpatasvir (50 mg/1) Pellet Oral Gilead Sciences, Inc. 2021-06-10 Not applicable US Epclusa Sofosbuvir (150 mg) + Velpatasvir (37.5 mg) Pellet Oral Gilead Sciences Ireland Uc 2022-06-08 Not applicable EU Epclusa Sofosbuvir (200 mg/1) + Velpatasvir (50 mg/1) Tablet, film coated Oral Gilead Sciences, Inc. 2020-03-19 Not applicable US Epclusa Sofosbuvir (200 mg) + Velpatasvir (50 mg) Tablet, film coated Oral Gilead Sciences Ireland Uc 2020-12-23 Not applicable EU Epclusa Sofosbuvir (400 mg) + Velpatasvir (100 mg) Tablet Oral Gilead Sciences 2016-08-02 Not applicable Canada Epclusa Sofosbuvir (400 mg/1) + Velpatasvir (100 mg/1) Tablet, film coated Oral Gilead Sciences, Inc. 2016-06-28 Not applicable US Epclusa Sofosbuvir (150 mg/1) + Velpatasvir (37.5 mg/1) Pellet Oral Gilead Sciences, Inc. 2021-06-10 Not applicable US Epclusa Sofosbuvir (200 mg) + Velpatasvir (50 mg) Oral Gilead Sciences Ireland Uc 2022-06-08 Not applicable EU Epclusa Sofosbuvir (400 mg) + Velpatasvir (100 mg) Tablet, film coated Oral Gilead Sciences Ireland Uc 2016-09-08 Not applicable EU EPCLUSA TABLET 400MG/100MG Sofosbuvir (400 mg) + Velpatasvir (100 mg) Tablet, film coated Oral GILEAD SCIENCES SINGAPORE PTE. LTD. 2017-10-19 Not applicable Singapore
Categories
- ATC Codes
- J05AP08 — Sofosbuvir
- J05AP — Antivirals for treatment of HCV infections
- J05A — DIRECT ACTING ANTIVIRALS
- J05 — ANTIVIRALS FOR SYSTEMIC USE
- J — ANTIINFECTIVES FOR SYSTEMIC USE
- J05AP — Antivirals for treatment of HCV infections
- J05A — DIRECT ACTING ANTIVIRALS
- J05 — ANTIVIRALS FOR SYSTEMIC USE
- J — ANTIINFECTIVES FOR SYSTEMIC USE
- J05AP — Antivirals for treatment of HCV infections
- J05A — DIRECT ACTING ANTIVIRALS
- J05 — ANTIVIRALS FOR SYSTEMIC USE
- J — ANTIINFECTIVES FOR SYSTEMIC USE
- Drug Categories
- Anti-Infective Agents
- Antiinfectives for Systemic Use
- Antiviral Agents
- Antivirals for Systemic Use
- Antivirals for treatment of HCV infections
- BCRP/ABCG2 Substrates
- Direct Acting Antivirals
- Drugs that are Mainly Renally Excreted
- Hepatitis C Virus Nucleotide Analog NS5B Polymerase Inhibitor
- Nucleic Acids, Nucleotides, and Nucleosides
- Nucleosides
- Nucleotides
- P-glycoprotein substrates
- Pyrimidine Nucleosides
- Pyrimidine Nucleotides
- Pyrimidines
- Ribonucleosides
- Ribonucleotides
- RNA Replicase Inhibitors
- Treatments for Hepatitis C
- Uracil Nucleotides
- Chemical TaxonomyProvided by Classyfire
- Description
- This compound belongs to the class of organic compounds known as pyrimidine 2'-deoxyribonucleosides. These are compounds consisting of a pyrimidine linked to a ribose which lacks a hydroxyl group at position 2.
- Kingdom
- Organic compounds
- Super Class
- Nucleosides, nucleotides, and analogues
- Class
- Pyrimidine nucleosides
- Sub Class
- Pyrimidine 2'-deoxyribonucleosides
- Direct Parent
- Pyrimidine 2'-deoxyribonucleosides
- Alternative Parents
- Alpha amino acid esters / Alanine and derivatives / Phosphoric diester monoamides / Phenoxy compounds / Pyrimidones / Hydropyrimidines / Organic phosphoramides / Vinylogous amides / Tetrahydrofurans / Heteroaromatic compounds show 15 more
- Substituents
- Alanine or derivatives / Alcohol / Alkyl fluoride / Alkyl halide / Alpha-amino acid ester / Alpha-amino acid or derivatives / Aromatic heteromonocyclic compound / Azacycle / Benzenoid / Carbonyl group show 32 more
- Molecular Framework
- Aromatic heteromonocyclic compounds
- External Descriptors
- organofluorine compound, ring assembly, L-alanyl ester, phosphoramidate ester, nucleotide conjugate (CHEBI:85083)
- Affected organisms
- Hepatitis C Virus
Chemical Identifiers
- UNII
- WJ6CA3ZU8B
- CAS number
- 1190307-88-0
- InChI Key
- TTZHDVOVKQGIBA-IQWMDFIBSA-N
- InChI
- InChI=1S/C22H29FN3O9P/c1-13(2)33-19(29)14(3)25-36(31,35-15-8-6-5-7-9-15)32-12-16-18(28)22(4,23)20(34-16)26-11-10-17(27)24-21(26)30/h5-11,13-14,16,18,20,28H,12H2,1-4H3,(H,25,31)(H,24,27,30)/t14-,16+,18+,20+,22+,36-/m0/s1
- IUPAC Name
- propan-2-yl (2S)-2-{[(S)-{[(2R,3R,4R,5R)-5-(2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)-4-fluoro-3-hydroxy-4-methyloxolan-2-yl]methoxy}(phenoxy)phosphoryl]amino}propanoate
- SMILES
- CC(C)OC(=O)[C@H](C)N[P@](=O)(OC[C@H]1O[C@@H](N2C=CC(=O)NC2=O)[C@](C)(F)[C@@H]1O)OC1=CC=CC=C1
References
- Synthesis Reference
Sofia MJ, Bao D, Chang W, Du J, Nagarathnam D, Rachakonda S, Reddy PG, Ross BS, Wang P, Zhang HR, Bansal S, Espiritu C, Keilman M, Lam AM, Steuer HM, Niu C, Otto MJ, Furman PA: Discovery of a beta-d-2'-deoxy-2'-alpha-fluoro-2'-beta-C-methyluridine nucleotide prodrug (PSI-7977) for the treatment of hepatitis C virus. J Med Chem. 2010 Oct 14;53(19):7202-18
- General References
- Asselah T: Sofosbuvir for the treatment of hepatitis C virus. Expert Opin Pharmacother. 2014 Jan;15(1):121-30. doi: 10.1517/14656566.2014.857656. Epub 2013 Nov 30. [Article]
- Fung A, Jin Z, Dyatkina N, Wang G, Beigelman L, Deval J: Efficiency of incorporation and chain termination determines the inhibition potency of 2'-modified nucleotide analogs against hepatitis C virus polymerase. Antimicrob Agents Chemother. 2014 Jul;58(7):3636-45. doi: 10.1128/AAC.02666-14. Epub 2014 Apr 14. [Article]
- Molina JM, Orkin C, Iser DM, Zamora FX, Nelson M, Stephan C, Massetto B, Gaggar A, Ni L, Svarovskaia E, Brainard D, Subramanian GM, McHutchison JG, Puoti M, Rockstroh JK: Sofosbuvir plus ribavirin for treatment of hepatitis C virus in patients co-infected with HIV (PHOTON-2): a multicentre, open-label, non-randomised, phase 3 study. Lancet. 2015 Mar 21;385(9973):1098-106. doi: 10.1016/S0140-6736(14)62483-1. Epub 2015 Feb 4. [Article]
- Simmonds P: Genetic diversity and evolution of hepatitis C virus--15 years on. J Gen Virol. 2004 Nov;85(Pt 11):3173-88. [Article]
- Bagaglio S, Uberti-Foppa C, Morsica G: Resistance Mechanisms in Hepatitis C Virus: implications for Direct-Acting Antiviral Use. Drugs. 2017 May 12. doi: 10.1007/s40265-017-0753-x. [Article]
- Myers RP, Shah H, Burak KW, Cooper C, Feld JJ: An update on the management of chronic hepatitis C: 2015 Consensus guidelines from the Canadian Association for the Study of the Liver. Can J Gastroenterol Hepatol. 2015 Jan-Feb;29(1):19-34. Epub 2015 Jan 13. [Article]
- Naggie S, Cooper C, Saag M, Workowski K, Ruane P, Towner WJ, Marks K, Luetkemeyer A, Baden RP, Sax PE, Gane E, Santana-Bagur J, Stamm LM, Yang JC, German P, Dvory-Sobol H, Ni L, Pang PS, McHutchison JG, Stedman CA, Morales-Ramirez JO, Brau N, Jayaweera D, Colson AE, Tebas P, Wong DK, Dieterich D, Sulkowski M: Ledipasvir and Sofosbuvir for HCV in Patients Coinfected with HIV-1. N Engl J Med. 2015 Aug 20;373(8):705-13. doi: 10.1056/NEJMoa1501315. Epub 2015 Jul 21. [Article]
- Murakami E, Tolstykh T, Bao H, Niu C, Steuer HM, Bao D, Chang W, Espiritu C, Bansal S, Lam AM, Otto MJ, Sofia MJ, Furman PA: Mechanism of activation of PSI-7851 and its diastereoisomer PSI-7977. J Biol Chem. 2010 Nov 5;285(45):34337-47. doi: 10.1074/jbc.M110.161802. Epub 2010 Aug 26. [Article]
- Denning J, Cornpropst M, Flach SD, Berrey MM, Symonds WT: Pharmacokinetics, safety, and tolerability of GS-9851, a nucleotide analog polymerase inhibitor for hepatitis C virus, following single ascending doses in healthy subjects. Antimicrob Agents Chemother. 2013 Mar;57(3):1201-8. doi: 10.1128/AAC.01262-12. Epub 2012 Dec 21. [Article]
- Xu S, Doehle B, Rajyaguru S, Han B, Barauskas O, Feng J, Perry J, Dvory-Sobol H, Svarovskaia ES, Miller MD, Mo H: In vitro selection of resistance to sofosbuvir in HCV replicons of genotype 1 to 6. Antivir Ther. 2017 Mar 1. doi: 10.3851/IMP3149. [Article]
- Dusheiko G: Side effects of alpha interferon in chronic hepatitis C. Hepatology. 1997 Sep;26(3 Suppl 1):112S-121S. [Article]
- Hill A, Simmons B, Gotham D, Fortunak J: Rapid reductions in prices for generic sofosbuvir and daclatasvir to treat hepatitis C. J Virus Erad. 2016 Jan 1;2(1):28-31. [Article]
- Eltahla AA, Luciani F, White PA, Lloyd AR, Bull RA: Inhibitors of the Hepatitis C Virus Polymerase; Mode of Action and Resistance. Viruses. 2015 Sep 29;7(10):5206-24. doi: 10.3390/v7102868. [Article]
- American Association for the Study of Liver Diseases; Infectious Diseases Society of America. HCV guidance. http://hcvguidelines.org. Accessed June 12, 2017. [Link]
- FDA Approved Drug Products: Epclusa (sofosbuvir and velpatasvir) tablets or pellets for oral use [Link]
- FDA Approved Drug Products: Harvoni (Ledipasvir and Sofosbuvir) tablets or pellets for oral use [Link]
- FDA Approved Drug Products: Vosevi (sofosbuvir, velpatasvir, and voxilaprevir) tablets for oral use [Link]
- FDA Approved Drug Products: Sovaldi (sofosbuvir) tablets or pellets for oral use [Link]
- External Links
- KEGG Drug
- D10366
- PubChem Compound
- 45375808
- PubChem Substance
- 175427164
- ChemSpider
- 26286922
- BindingDB
- 50239940
- 1484911
- ChEBI
- 85083
- ChEMBL
- CHEMBL1259059
- ZINC
- ZINC000100074252
- PharmGKB
- PA166122593
- PDBe Ligand
- WG6
- RxList
- RxList Drug Page
- Drugs.com
- Drugs.com Drug Page
- Wikipedia
- Sofosbuvir
- PDB Entries
- 8e5b
- MSDS
- Download (616 KB)
Clinical Trials
- Clinical Trials
Pharmacoeconomics
- Manufacturers
- Not Available
- Packagers
- Not Available
- Dosage Forms
Form Route Strength Tablet Oral 400 MG Granule Oral Pellet Oral Tablet Oral Tablet, film coated Oral 90 mg Tablet, film coated Oral Tablet, film coated Oral 400 mg Granule Oral 150 MG Granule Oral 200 MG Pellet Oral 150 mg/1 Pellet Oral 150 mg Pellet Oral 200 mg/1 Tablet Oral Tablet Oral 200 mg Tablet, film coated Oral 200 mg/1 Tablet, film coated Oral 200 MG Tablet, film coated Oral 400 mg/1 Tablet, film coated Oral 400.0 mg Tablet, film coated Oral Tablet, coated Oral 400 mg Tablet, coated Oral - Prices
- Not Available
- Patents
Patent Number Pediatric Extension Approved Expires (estimated) Region US8841278 Yes 2014-09-23 2030-11-12 US US7964580 Yes 2011-06-21 2029-09-26 US US8334270 Yes 2012-12-18 2028-09-21 US US8822430 Yes 2014-09-02 2030-11-12 US US8633309 Yes 2014-01-21 2029-09-26 US US8273341 Yes 2012-09-25 2030-11-12 US US8618076 Yes 2013-12-31 2031-06-11 US US8735372 Yes 2014-05-27 2028-09-21 US US8580765 Yes 2013-11-12 2028-09-21 US US8889159 Yes 2014-11-18 2029-09-26 US US9085573 Yes 2015-07-21 2028-09-21 US US9284342 Yes 2016-03-15 2031-03-13 US US8088368 Yes 2012-01-03 2030-11-12 US US9393256 Yes 2016-07-19 2033-03-14 US US9511056 Yes 2016-12-06 2030-11-12 US US9549941 Yes 2017-01-24 2029-09-26 US US8940718 Yes 2015-01-27 2033-05-16 US US8575135 Yes 2013-11-05 2034-05-05 US US8921341 Yes 2014-12-30 2033-05-16 US US9585906 No 2017-03-07 2028-03-21 US US9296782 No 2016-03-29 2034-07-17 US US9757406 Yes 2017-09-12 2034-07-30 US US9868745 No 2018-01-16 2032-11-16 US US10039779 Yes 2018-08-07 2034-07-30 US US10086011 Yes 2018-10-02 2034-07-30 US US10456414 No 2019-10-29 2032-09-14 US US8957046 No 2015-02-17 2028-03-21 US US10912814 No 2021-02-09 2037-06-01 US US11116783 Yes 2021-09-14 2034-07-30 US US11338007 Yes 2017-12-01 2037-12-01 US
Properties
- State
- Solid
- Experimental Properties
Property Value Source logP 1.62 FDA Label pKa 9.3 FDA Label - Predicted Properties
Property Value Source Water Solubility 0.824 mg/mL ALOGPS logP 1.63 ALOGPS logP 1.28 Chemaxon logS -2.8 ALOGPS pKa (Strongest Acidic) 9.7 Chemaxon pKa (Strongest Basic) -3.9 Chemaxon Physiological Charge 0 Chemaxon Hydrogen Acceptor Count 6 Chemaxon Hydrogen Donor Count 3 Chemaxon Polar Surface Area 152.73 Å2 Chemaxon Rotatable Bond Count 11 Chemaxon Refractivity 121.59 m3·mol-1 Chemaxon Polarizability 49.89 Å3 Chemaxon Number of Rings 3 Chemaxon Bioavailability 0 Chemaxon Rule of Five No Chemaxon Ghose Filter No Chemaxon Veber's Rule No Chemaxon MDDR-like Rule Yes Chemaxon - Predicted ADMET Features
- Not Available
Spectra
- Mass Spec (NIST)
- Not Available
- Spectra
Spectrum Spectrum Type Splash Key Predicted MS/MS Spectrum - 10V, Positive (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 20V, Positive (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 40V, Positive (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 10V, Negative (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 20V, Negative (Annotated) Predicted LC-MS/MS Not Available Predicted MS/MS Spectrum - 40V, Negative (Annotated) Predicted LC-MS/MS Not Available
Targets

- Kind
- Protein
- Organism
- Hepatitis C Virus
- Pharmacological action
- Yes
- Actions
- Inhibitor
- General Function
- Rna-directed rna polymerase activity
- Specific Function
- Not Available
- Gene Name
- NS5b
- Uniprot ID
- O39930
- Uniprot Name
- RNA-dependent RNA-polymerase
- Molecular Weight
- 65753.05 Da
References
- Murakami E, Tolstykh T, Bao H, Niu C, Steuer HM, Bao D, Chang W, Espiritu C, Bansal S, Lam AM, Otto MJ, Sofia MJ, Furman PA: Mechanism of activation of PSI-7851 and its diastereoisomer PSI-7977. J Biol Chem. 2010 Nov 5;285(45):34337-47. doi: 10.1074/jbc.M110.161802. Epub 2010 Aug 26. [Article]
Enzymes
- Kind
- Protein
- Organism
- Not Available
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Protective protein appears to be essential for both the activity of beta-galactosidase and neuraminidase, it associates with these enzymes and exerts a protective function necessary for their stability and activity. This protein is also a carboxypeptidase and can deamidate tachykinins.
- Specific Function
- Carboxypeptidase activity
- Gene Name
- CTSA
- Uniprot ID
- P10619
- Uniprot Name
- Lysosomal protective protein
- Molecular Weight
- 54465.655 Da
References
- Murakami E, Tolstykh T, Bao H, Niu C, Steuer HM, Bao D, Chang W, Espiritu C, Bansal S, Lam AM, Otto MJ, Sofia MJ, Furman PA: Mechanism of activation of PSI-7851 and its diastereoisomer PSI-7977. J Biol Chem. 2010 Nov 5;285(45):34337-47. doi: 10.1074/jbc.M110.161802. Epub 2010 Aug 26. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Substrate
- General Function
- Carboxylic ester hydrolase activity
- Specific Function
- Not Available
- Gene Name
- CES1A1a
- Uniprot ID
- Q6LAP9
- Uniprot Name
- Carboxylesterase
- Molecular Weight
- 1908.25 Da
References
- Murakami E, Tolstykh T, Bao H, Niu C, Steuer HM, Bao D, Chang W, Espiritu C, Bansal S, Lam AM, Otto MJ, Sofia MJ, Furman PA: Mechanism of activation of PSI-7851 and its diastereoisomer PSI-7977. J Biol Chem. 2010 Nov 5;285(45):34337-47. doi: 10.1074/jbc.M110.161802. Epub 2010 Aug 26. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Protein kinase c binding
- Specific Function
- Hydrolyzes purine nucleotide phosphoramidates with a single phosphate group, including adenosine 5'monophosphoramidate (AMP-NH2), adenosine 5'monophosphomorpholidate (AMP-morpholidate) and guanosin...
- Gene Name
- HINT1
- Uniprot ID
- P49773
- Uniprot Name
- Histidine triad nucleotide-binding protein 1
- Molecular Weight
- 13801.815 Da
References
- Murakami E, Tolstykh T, Bao H, Niu C, Steuer HM, Bao D, Chang W, Espiritu C, Bansal S, Lam AM, Otto MJ, Sofia MJ, Furman PA: Mechanism of activation of PSI-7851 and its diastereoisomer PSI-7977. J Biol Chem. 2010 Nov 5;285(45):34337-47. doi: 10.1074/jbc.M110.161802. Epub 2010 Aug 26. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Uridylate kinase activity
- Specific Function
- Catalyzes the phosphorylation of pyrimidine nucleoside monophosphates at the expense of ATP. Plays an important role in de novo pyrimidine nucleotide biosynthesis. Has preference for UMP and CMP as...
- Gene Name
- CMPK1
- Uniprot ID
- P30085
- Uniprot Name
- UMP-CMP kinase
- Molecular Weight
- 22222.175 Da
References
- Murakami E, Tolstykh T, Bao H, Niu C, Steuer HM, Bao D, Chang W, Espiritu C, Bansal S, Lam AM, Otto MJ, Sofia MJ, Furman PA: Mechanism of activation of PSI-7851 and its diastereoisomer PSI-7977. J Biol Chem. 2010 Nov 5;285(45):34337-47. doi: 10.1074/jbc.M110.161802. Epub 2010 Aug 26. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Ribosomal small subunit binding
- Specific Function
- Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-sit...
- Gene Name
- NME1
- Uniprot ID
- P15531
- Uniprot Name
- Nucleoside diphosphate kinase A
- Molecular Weight
- 17148.635 Da
References
- Murakami E, Tolstykh T, Bao H, Niu C, Steuer HM, Bao D, Chang W, Espiritu C, Bansal S, Lam AM, Otto MJ, Sofia MJ, Furman PA: Mechanism of activation of PSI-7851 and its diastereoisomer PSI-7977. J Biol Chem. 2010 Nov 5;285(45):34337-47. doi: 10.1074/jbc.M110.161802. Epub 2010 Aug 26. [Article]
Transporters
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Substrate
- General Function
- Xenobiotic-transporting atpase activity
- Specific Function
- Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells.
- Gene Name
- ABCB1
- Uniprot ID
- P08183
- Uniprot Name
- Multidrug resistance protein 1
- Molecular Weight
- 141477.255 Da
References
- Tischer S, Fontana RJ: Drug-drug interactions with oral anti-HCV agents and idiosyncratic hepatotoxicity in the liver transplant setting. J Hepatol. 2014 Apr;60(4):872-84. doi: 10.1016/j.jhep.2013.11.013. Epub 2013 Nov 23. [Article]
- Burgess S, Partovi N, Yoshida EM, Erb SR, Azalgara VM, Hussaini T: Drug Interactions With Direct-Acting Antivirals for Hepatitis C: Implications for HIV and Transplant Patients. Ann Pharmacother. 2015 Jun;49(6):674-87. doi: 10.1177/1060028015576180. Epub 2015 Mar 13. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Substrate
- General Function
- Xenobiotic-transporting atpase activity
- Specific Function
- High-capacity urate exporter functioning in both renal and extrarenal urate excretion. Plays a role in porphyrin homeostasis as it is able to mediates the export of protoporhyrin IX (PPIX) both fro...
- Gene Name
- ABCG2
- Uniprot ID
- Q9UNQ0
- Uniprot Name
- ATP-binding cassette sub-family G member 2
- Molecular Weight
- 72313.47 Da
Drug created at January 02, 2014 04:48 / Updated at September 28, 2023 01:14