Risk Of Developing Liver Cancer After HCV Treatment

Thursday, August 9, 2018

FDA: Hepatitis C Drug Labeling Updated to Include New Clinical Data

Pharmacy Times
The FDA has approved updates to the labeling for hepatitis C virus (HCV) drug glecaprevir and pibrentasvir (Mavyret) to include new data from 2 clinical studies, according to a press release.

Labeling revisions include updates to the dosing recommendations, as well as safety and efficacy outcomes data from the HCV/HIV-1 coinfection study (M14-730) and from the liver and renal transplant study (M13-596).

The Dosage and Administration section was updated to include dosing recommendations for 12 weeks in liver or kidney transplant recipients and a 16-week treatment duration in genotype 1-infected patients who are NS5A inhibitor-experienced without prior treatment with an NS3/4A protease inhibitor or in genotype (GT) 3-infected patients who are pegylated interferon, ribavirin, and sofosbuvir (PRS) treatment-experienced.

Additionally, the Adverse Reactions and Clinical Studies sections were updated to include safety and efficacy data from the trials for HCV/HIV-1 coinfected individuals and patients with liver or kidney transplant.
Continue to article: 

Healio
The FDA recently approved safety and efficacy revisions to the Mavyret label based on data from a hepatitis C/HIV-1 collection study and a liver and renal transplant study.

Ongoing studies from the past year have shown Mavyret (glecaprevir/pibrentasvir, AbbVie) to be a pangenotypic treatment that is highly effective over an 8-week course for most patients.
According to the released revisions, the FDA recommends a 12-week course of glecaprevir/pibrentasvir for liver or kidney transplant recipients. 

The FDA also recommends a 16-week course for patients with genotype 1 and NS5A inhibitor-experienced without prior treatment with an NS3/4A protease inhibitor, and for patients with genotype 3 who are treatment-experienced with Sovaldi (sofosbuvir, Gilead Sciences) and ribavirin.
Continue reading:
https://www.healio.com/hepatology/hepatitis-c/news/online/%7B16476477-5087-4d86-b8e9-021cb73a828b%7D/fda-updates-mavyret-label-for-new-safety-efficacy-data

FDA Hepatitis Updates
FDA recently approved revisions to the MAVYRET™ (glecaprevir and pibrentasvir)
The FDA recently approved revisions to the MAVYRET™ (glecaprevir and pibrentasvir) tablets label to include safety and efficacy data from the HCV/HIV-1 coinfection study (M14-730) and from the liver and renal transplant study (M13-596). A summary of the major revisions includes the following:

Section 2: DOSAGE AND ADMINISTRATION was updated to include the following dosing recommendations.

2.3 Liver or Kidney Transplant Recipients

MAVYRET is recommended for 12 weeks in liver or kidney transplant recipients. A 16-week treatment duration is recommended in genotype 1-infected patients who are NS5A inhibitor- experienced without prior treatment with an NS3/4A protease inhibitor or in genotype 3-infected patients who are PRS treatment-experienced.

Section 6: ADVERSE REACTIONS was updated to include the following safety data.

Adverse Reactions in HCV/HIV-1 Co-infected Subjects

The safety of MAVYRET in subjects with HIV-1 co-infection with genotypes 1, 2, 3, 4 or 6 chronic HCV infection without cirrhosis or with compensated cirrhosis (Child-Pugh A) was assessed in 153 subjects (EXPEDITION-2) who received MAVYRET for 8 or 12 weeks. Thirty- three subjects with HIV-1 coinfection also received 8 or 12 weeks of therapy in ENDURANCE- 1.

The overall safety profile in HCV/HIV-1 co-infected subjects (ENDURANCE-1 and EXPEDITION-2) was similar to that observed in HCV mono-infected subjects. Adverse reactions observed in greater than or equal to 5% of subjects receiving MAVYRET in EXPEDITION-2 for 8 or 12 weeks were fatigue (10%), nausea (8%), and headache (5%).

Adverse Reactions in Subjects with Liver or Kidney Transplant

The safety of MAVYRET was assessed in 100 post-liver or -kidney transplant recipients with genotypes 1, 2, 3, 4, or 6 chronic HCV infection without cirrhosis (MAGELLAN-2). The overall safety profile in transplant recipients was similar to that observed in subjects in the Phase 2 and 3 studies, without a history of transplantation. Adverse reactions observed in greater than or equal to 5% of subjects receiving MAVYRET for 12 weeks were headache (17%), fatigue (16%), nausea (8%) and pruritus (7%). In subjects treated with MAVYRET who reported an adverse reaction, 81% had adverse reactions of mild severity. Two percent of subjects experienced a serious adverse reaction, and no subjects permanently discontinued treatment due to adverse reactions.

Section 14: CLINICAL STUDIES was updated to include the following efficacy outcomes data.

14.7 Treatment-Naïve or PRS Treatment-Experienced Adults with HCV/HIV-1 Coinfection without Cirrhosis or with Compensated Cirrhosis

EXPEDITION-2 was an open-label study in 153 HCV/HIV-1-coinfected subjects. Subjects without cirrhosis received MAVYRET for 8 weeks and subjects with compensated cirrhosis received MAVYRET for 12 weeks. The study included subjects who were HCV treatment-naïve or treatment-experienced to combinations of (peg)interferon, ribavirin, and/or sofosbuvir, with the exception of GT3-infected subjects who were all treatment naïve.

Of the 153 subjects treated, the median age was 45 years (range: 23 to 74); 63% had HCV genotype 1, 7% had HCV genotype 2, 17% had HCV genotype 3, 11% had HCV genotype 4, 2% had HCV genotype 6; 11% had cirrhosis; 84% were male; and 16% were Black.
In EXPEDITION-2, the SVR12 rate in HCV/HIV-1 co-infected subjects was 98% (150/153). One subject experienced on-treatment virologic failure and no subjects relapsed.

14.8 Treatment-Naïve or PRS Treatment-Experienced Adults with Liver or Kidney Transplant without Cirrhosis

MAGELLAN-2 was a single-arm, open-label study in 100 post-liver or -kidney transplant HCV GT 1, 2, 3, 4, or 6 infected subjects without cirrhosis who received MAVYRET for 12 weeks. The study included subjects who were HCV treatment-naïve or treatment-experienced to combinations of (peg)interferon, ribavirin, and/or sofosbuvir, with the exception of GT3-infected subjects who were all treatment-naïve.

Of the 100 subjects treated, the median age was 60 years (range: 39 to 78); 57% had HCV genotype 1, 13% had HCV genotype 2, 24% had HCV genotype 3, 4% had HCV genotype 4, 2% had HCV genotype 6; 75% were male; 8% were Black; 80% of subjects were post-liver transplant and 20% were post-kidney transplant. Immunosuppressants allowed for co- administration were cyclosporine ≤100 mg, tacrolimus, sirolimus, everolimus, azathioprine, mycophenolic acid, prednisone, and prednisolone.

The overall SVR12 rate in post-transplant subjects was 98% (98/100). There was one relapse and no on-treatment virologic failures.
The updated label will soon be available at drugs@fda or DailyMed
Mavyret - FDA Approval Date(s) and History, Letters, Labels, Reviews

Kimberly Struble
Division of Antiviral Products
Food and Drug Administration

Elizabeth Thompson
Division of Antiviral Products
Food and Drug Administration

Michael Stanfield Jr.
Division of Antiviral Products
Food and Drug Administration

No comments:

Post a Comment