Combination of | |
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Ombitasvir | Antiviral (NS5A inhibitor) |
Paritaprevir | Antiviral (NS3 inhibitor) |
Ritonavir | PK enhancer (CYP3A4, CYP2D6 inhibitor) |
Clinical data | |
Trade names | Technivie, Viekirax, others |
AHFS/Drugs.com | Monograph |
MedlinePlus | a615036 |
License data | |
Routes of administration | By mouth |
ATC code | |
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Identifiers | |
CAS Number | |
ChemSpider |
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KEGG | |
ChEBI | |
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Combination of | |
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Dasabuvir | Antiviral |
Ombitasvir | Antiviral (NS5A inhibitor) |
Paritaprevir | Antiviral (NS3 inhibitor) |
Ritonavir | PK enhancer (CYP3A4, CYP2D6 inhibitor) |
Clinical data | |
Trade names | Viekira Pak, Viekira XR, Holkira Pak, others |
AHFS/Drugs.com | Monograph |
MedlinePlus | a614057 |
License data | |
Routes of administration | By mouth |
ATC code | |
Legal status | |
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KEGG | |
ChEBI |
Ombitasvir/paritaprevir/ritonavir, sold under the brand name Technivie among others, is a medication used to treat hepatitis C. [6] It is a fixed-dose combination of ombitasvir, paritaprevir, and ritonavir. [6] Specifically it is used together with dasabuvir or ribavirin for cases caused by hepatitis C virus genotype 1 or 4. [6] [7] Cure rates are around 95%. [7] It is taken by mouth. [6]
It is generally well tolerated. [8] Common side effects include nausea, itchiness, rash, and trouble sleeping. [6] Other side effects include allergic reactions and reactivation of hepatitis B among those previously infected. [6] Use is not recommended in those with significant liver problems. [6] While there is no evidence of harm with use during pregnancy, this use has not been well studied. [6] Each of the medications works by a different mechanism. [7] The ritonavir is present to decrease the breakdown of paritaprevir. [6]
Ombitasvir/paritaprevir/ritonavir with dasabuvir was approved for medical use in the United States in December 2014, [9] without dasabuvir in July 2015, [2] [10] and as extended release in July 2016. [11] [12] [13] It is on the World Health Organization's List of Essential Medicines. [14]
Ombitasvir/paritaprevir/ritonavir is used together with dasabuvir or ribavirin for cases caused by hepatitis C virus genotype 1 or 4. [6] [7] Cure rates are around 95%. [7]
Post-market surveillance reports show hepatic decompensation and hepatic failure associated with Viekira Pak use. It is likely that most patients who experienced this had advanced cirrhosis prior to treatment initiation. Hepatic decompensation is described by rising bilirubin without ALT elevations alongside clinical symptoms such as ascites and hepatic encephalopathy. Patients should be monitored for signs of hepatic decompensation and bilirubin levels should be tested in the first four weeks of treatment and compared to baseline. [15]
Ombitasvir/paritaprevir/ritonavir could cause hepatitis B re-activation in people co-infected with hepatitis B and C viruses. The European Medicines Agency recommended screening all people for hepatitis B before starting ombitasvir/paritaprevir/ritonavir for hepatitis C in order to minimize the risk of hepatitis B reactivation. [16]
It is manufactured by Abbvie. In the United States ombitasvir/paritaprevir/ritonavir together with dasabuvir is sold as Viekira Pak. [17] Technivie consists of only ombitasvir/paritaprevir/ritonavir tablets. [18] Technivie was discontinued in the US market in 2020. [19]
Ombitasvir/paritaprevir/ritonavir together with dasabuvir was approved in its first review cycle by the FDA in December 2014. [20] The Center for Drug Evaluation and Research (CDER) designated the product for Fast Track because it had potential to treat unmet medical need. This track allows the CDER to view certain information ahead of a completed NDA to cut down the time to approval. Additionally, it was designated Breakthrough Therapy for its substantial improvement in the primary endpoint SVR12 and given Priority Review under the Prescription Drug User Fee Act allowing the review to be completed in six months rather than the standard ten months. [21]
In the European Union, ombitasvir/paritaprevir/ritonavir is approved under the brand name Viekirax for combination therapy together with dasabuvir, with or without ribavirin. [3] [22]
Sapphire I was a 12-week placebo-controlled, randomized, double-blind trial which had a primary endpoint of cure (SVR12) rate in non-cirrhotic patients with HCV GT1a and GT1b - who were new to HCV treatment - and were given Viekira Pak and ribavirin (RBV). Sapphire I reported a 96% cure rate. [23]
Sapphire II was a 12-week placebo-controlled, randomized, double-blind trial which had a primary endpoint of cure (SVR12) rate in non-cirrhotic patients with HCV GT1a and GT1b - who had previously received treatment - and were given Viekira Pak and (RBV). SAPPHIRE II reported a 96% cure rate. [23]
Pearl II was a 12-week open-label, randomized trial which had a primary endpoint of cure (SVR12) rate in non-cirrhotic patients with HCV GT1b - who had previously received treatment - and were given either Viekira Pak and (RBV) or Viekira Pak alone. Pearl II reported a 100% cure rate. [23]
Pearl III was a 12-week placebo-controlled, randomized, double-blind trial which had a primary endpoint of cure (SVR12) rate in non-cirrhotic patients with HCV GT1b - who were new to HCV treatment - and were given Viekira Pak and (RBV) or Viekira Pak and a RBV placebo. Pearl III reported a 100% cure rate [23]
Pearl IV was a 12-week placebo-controlled, randomized, double-blind trial which had a primary endpoint of cure (SVR12) rate in non-cirrhotic patients with HCV GT1b - who were new to HCV treatment - and were given Viekira Pak and (RBV) or Viekira Pak and a RBV placebo. The primary difference between Pearl III and PEARL IV was that PEARL IV had a 1:2 allocation ratio meaning twice as many participants were given Viekira Pak and RBV placebo compared to Viekira Pack and RBV. Pearl IV had a 97% cure rate. [23]
Turquoise II was an open-label, randomized trial which had a primary endpoint of cure (SVR12) rate in patients with compensated cirrhosis and either HCV GT1a or GT1b and both treatment arms were given Viekira Pak and (RBV). The two treatment arms differed by length of treatment: subjects were randomly assigned to receive treatment for either 12 or 24 weeks. The results were stratified based on whether or not subjects had previously received pegIFN/RBV treatment. This is the only phase III trial which has been completed with Viekira Pak and cirrhotic patients with HCV. TURQUOISE II reported a 95% cure rate for the 24-week arm and 99% cure rate for the 12-week arm. Subjects with genotype 1a had higher cure rates in the 24-week arm than the 12-week arm. [23]
Hepatitis C is an infectious disease caused by the hepatitis C virus (HCV) that primarily affects the liver; it is a type of viral hepatitis. During the initial infection period, people often have mild or no symptoms. Early symptoms can include fever, dark urine, abdominal pain, and yellow tinged skin. The virus persists in the liver, becoming chronic, in about 70% of those initially infected. Early on, chronic infection typically has no symptoms. Over many years however, it often leads to liver disease and occasionally cirrhosis. In some cases, those with cirrhosis will develop serious complications such as liver failure, liver cancer, or dilated blood vessels in the esophagus and stomach.
Ritonavir, sold under the brand name Norvir, is an antiretroviral medication used along with other medications to treat HIV/AIDS. This combination treatment is known as highly active antiretroviral therapy (HAART). Ritonavir is a protease inhibitor, though it now mainly serves to boost the potency of other protease inhibitors. It may also be used in combination with other medications to treat hepatitis C and COVID-19. It is taken by mouth.
Boceprevir is a protease inhibitor used to treat hepatitis caused by hepatitis C virus (HCV) genotype 1. It binds to the HCV nonstructural protein 3 active site.
Telaprevir (VX-950), marketed under the brand names Incivek and Incivo, is a pharmaceutical drug for the treatment of hepatitis C co-developed by Vertex Pharmaceuticals and Johnson & Johnson. It is a member of a class of antiviral drugs known as protease inhibitors. Specifically, telaprevir inhibits the hepatitis C viral enzyme NS3/4A serine protease. Telaprevir is only indicated for use against hepatitis C genotype 1 viral infections and has not been proven to be safe or effective when used for other genotypes of the virus. The standard therapy of pegylated interferon and ribavirin is less effective than telaprevir in those with genotype 1.
Vorapaxar is a thrombin receptor antagonist based on the natural product himbacine, discovered by Schering-Plough and developed by Merck & Co.
Sofosbuvir, sold under the brand name Sovaldi among others, is a medication used to treat hepatitis C. It is taken by mouth.
Simeprevir, sold under the brand name Olysio among others, is a medication used in combination with other medications for the treatment of hepatitis C. It is specifically used for hepatitis C genotype 1 and 4. Medications it is used with include sofosbuvir or ribavirin and peginterferon-alfa. Cure rates are in 80s to 90s percent. It may be used in those who also have HIV/AIDS. It is taken by mouth once daily for typically 12 weeks.
Ledipasvir is a drug for the treatment of hepatitis C that was developed by Gilead Sciences. After completing Phase III clinical trials, on February 10, 2014, Gilead filed for U.S. approval of a ledipasvir/sofosbuvir fixed-dose combination tablet for genotype 1 hepatitis C. The ledipasvir/sofosbuvir combination is a direct-acting antiviral agent that interferes with HCV replication and can be used to treat patients with genotypes 1a or 1b without PEG-interferon or ribavirin.
Nonstructural protein 5B (NS5B) is a viral protein found in the hepatitis C virus (HCV). It is an RNA-dependent RNA polymerase, having the key function of replicating HCV's viral RNA by using the viral positive RNA strand as a template to catalyze the polymerization of ribonucleoside triphosphates (rNTP) during RNA replication. Several crystal structures of NS5B polymerase in several crystalline forms have been determined based on the same consensus sequence BK. The structure can be represented by a right hand shape with fingers, palm, and thumb. The encircled active site, unique to NS5B, is contained within the palm structure of the protein. Recent studies on NS5B protein genotype 1b strain J4's (HC-J4) structure indicate a presence of an active site where possible control of nucleotide binding occurs and initiation of de-novo RNA synthesis. De-novo adds necessary primers for initiation of RNA replication.
Paritaprevir is an acylsulfonamide inhibitor of the NS3-4A serine protease manufactured by Abbott Laboratories that shows promising results as a treatment of hepatitis C. When given in combination with ritonavir and ribavirin for 12 weeks, the rate of sustained virologic response at 24 weeks after treatment has been estimated to be 95% for those with hepatitis C virus genotype 1. Resistance to treatment with paritaprevir is uncommon, because it targets the binding site, but has been seen to arise due to mutations at positions 155 and 168 in NS3.
Ombitasvir is an antiviral drug for the treatment of hepatitis C virus (HCV) infection by AbbVie. In the United States, it is approved by the Food and Drug Administration for use in combination with paritaprevir, ritonavir and dasabuvir in the product Viekira Pak for the treatment of HCV genotype 1, and with paritaprevir and ritonavir in the product Technivie for the treatment of HCV genotype 4.
Dasabuvir, sold under the brand name Exviera, is an antiviral medication for the treatment of hepatitis C. It is often used together with the combination medication ombitasvir/paritaprevir/ritonavir specifically for hepatitis C virus (HCV) type 1. Ribavirin may also additionally be used. These combinations result in a cure in more than 90% of people. It is taken by mouth.
Ledipasvir/sofosbuvir, sold under the trade name Harvoni among others, is a medication used to treat hepatitis C. It is a fixed-dose combination of ledipasvir and sofosbuvir. Cure rates are 94% to 99% in people infected with hepatitis C virus (HCV) genotype 1. Some evidence also supports use in HCV genotype 3 and 4. It is taken daily by mouth for 8–24 weeks.
Gamal Esmat is a professor at Endemic Medicine and Hepatogastroenterology Department, Cairo University. He was vice president of Cairo University for Graduate Studies and Research.
Elbasvir/grazoprevir, sold under the brand name Zepatier, is a fixed-dose combination for the treatment of hepatitis C, containing elbasvir and grazoprevir. It is used to treat chronic hepatitis C virus (HCV) genotypes 1 or 4 infection in both treatment-naïve and treatment-experienced patients.
Daclatasvir/sofosbuvir is a two-drug combination for the treatment of hepatitis C. It is given as a single daily pill containing daclatasvir, a viral NS5A inhibitor, and sofosbuvir, a nucleotide inhibitor of the viral RNA polymerase NS5B.
Narlaprevir, is an inhibitor of NS3/4A serine protease, intended for the treatment of chronic hepatitis C caused by genotype 1 virus in combination with other antiviral drugs.
Danoprevir (INN) is an orally available 15-membered macrocyclic peptidomimetic inhibitor of NS3/4A HCV protease. It contains acylsulfonamide, fluoroisoindole and tert-butyl carbamate moieties. Danoprevir is a clinical candidate based on its favorable potency profile against multiple HCV genotypes 1–6 and key mutants (GT1b, IC50 = 0.2–0.4 nM; replicon GT1b, EC50 = 1.6 nM). Danoprevir has been evaluated in an open-label, single arm clinical trial in combination with ritonavir for treating COVID-19 and favourably compared to lopinavir/ritonavir in a second trial.
Sofosbuvir/velpatasvir, sold under the brand name Epclusa among others, is a fixed-dose combination medication for the treatment of hepatitis C in adults. It combines sofosbuvir and velpatasvir. It is more than 90% effective for hepatitis C genotypes one through six. It also works for hepatitis C in those who also have cirrhosis or HIV/AIDS. It is taken by mouth.
Glecaprevir/pibrentasvir (G/P), sold under the brand names Mavyret and Maviret, is a fixed-dose combination medication used to treat hepatitis C. It contains glecaprevir and pibrentasvir. It works against all six types of hepatitis C. At twelve weeks following treatment between 81% and 100% of people have no evidence of hepatitis C. It is taken once a day by mouth with food.