Medicine details

ImageTwinvir
NameTwinvir
DosageTablet
Generic NameLedipasvir + Sofosbuvir
Classes Antiinfective Agent
Antiviral Agent
Antiviral Combination
Diseases Hepatitis C
Infectious Disease
CompanyIncepta Pharmaceuticals Ltd.

Drug Package Details

Strength
Storage Condition
Origin CountryBangladesh
Commercial Pack28
Price per pack28,000.00
Cost per pack24,640.00
Package unit7 tabs strip
Price per unit1,000.00
Cost per unit880.00
Discount0
Coupon
Remarks

Ledipasvir + Sofosbuvir

Ledipasvir + Sofosbuvir is a combination of two antiviral drugs. Ledipasvir is an inhibitor of the Hepatitis C Virus (HCV) NS5A protein, which is required for viral RNA replication and virus assembly. Although the precise mechanism of action is unknown, it is thought to prevent NS5A hyperphosphorylation, which is required for viral production.

Sofosbuvir is an inhibitor of the Hepatitis C Virus RNA-dependent RNA polymerase, which is essential for viral replication. Sofosbuvir is a nucleotide prodrug that undergoes intracellular metabolism to form the pharmacologically active uridine analog triphosphate, which can be incorporated into HCV RNA by the polymerase and acts as a chain terminator.

Ledipasvir + Sofosbuvir is indicated for the treatment of chronic hepatitis C virus (HCV) in adults and pediatric patients 3 years of age and older: 

  • Genotype 1, 4, 5, or 6 infection without cirrhosis or with compensated cirrhosis 
  • Genotype 1 infection with decompensated cirrhosis, in combination with ribavirin
  • Genotype 1 or 4 infection who are liver transplant recipients without cirrhosis or with compensated cirrhosis, in combination with ribavirin. 
  • Testing prior to the initiation of therapy: Test all patients for HBV infection by measuring HBsAg and anti-HBc. 
  • Recommended treatment regimen and duration in patients 3 years of age and older:
HCV Genotype Patient Population  Regimen and Duration 
Genotype 1  Treatment-naive without cirrhosis or with compensated cirrhosis (Child-Pugh A)  Ledipasvir + Sofosbuvir 12 weeks 
Treatment-experienced without cirrhosis  Ledipasvir + Sofosbuvir 12 weeks 
Treatment-experienced with compensated cirrhosis (ChildPugh A) Ledipasvir + Sofosbuvir 24 weeks 
Treatment-naive and treatmentexperienced with decompensated cirrhosis (ChildPugh B or C)  Ledipasvir + Sofosbuvir + ribavirin 12 weeks
Genotype 1 or 4 Treatment-naive and treatmentexperienced liver transplant recipients without cirrhosis, or with compensated cirrhosis (Child-Pugh A) Ledipasvir + Sofosbuvir + ribavirin 12 weeks
Genotype 4, 5, or 6 Treatment-naive and treatmentexperienced without cirrhosis or with compensated cirrhosis (Child-Pugh A Ledipasvir + Sofosbuvir 12 weeks
  • Recommended dosage in adults: One tablet (90 mg of ledipasvir and 400 mg of sofosbuvir) taken orally once daily with or without food. 
  • Recommended dosage in pediatric patients 3 years and older: Recommended dosage of Ledipasvir + Sofosbuvir in pediatric patients 3 years of age and older is based on weight. 
  • HCV/HIV-1 coinfection: For adult and pediatric patients with HCV/HIV-1 coinfection, follow the dosage recommendations in the tables in the full prescribing information.
  • If used in combination with ribavirin, follow the recommendations for ribavirin dosing and dosage modifications.
  • A dosage recommendation cannot be made for patients with severe renal impairment or end stage renal disease.

The most common adverse reactions associated with Ledipasvir + Sofosbuvir include-

  • Fatigue
  • Headache
  • Nausea
  • Diarrhea
  • Insomnia
  • Hepatitis B virus (HBV) reactivation has been reported, in some cases resulting in fulminant hepatitis, hepatic failure, and death. 
  • Reactivation of the Hepatitis B Virus: Before starting HCV treatment, all patients should be tested for evidence of current or prior HBV infection. During HCV treatment and post-treatment follow-up, monitor HCV/HBV coinfected patients for HBV reactivation and hepatitis flare. As clinically indicated, initiate appropriate patient management for HBV infection.
  • Bradycardia with amiodarone coadministration: Serious symptomatic bradycardia can occur in patients taking amiodarone, especially if they are also taking beta blockers or have underlying cardiac comorbidities or advanced liver disease. Amiodarone and Ledipasvir + Sofosbuvir should not be taken together. Cardiovascular monitoring is advised in patients who do not have other viable treatment options.

Contraindication

If used in combination with ribavirin, all contraindications to ribavirin also apply to Ledipasvir + Sofosbuvir combination therapy.