September 2015 Mid-Month Edition - SNAPSHOTS —Alan Franciscus, Editor-in-Chief

This month’s Snapshots is about recently published studies on all-oral therapies to treat hepatitis C in people coinfected with HIV.  We have really come a long way in such a short period of time with medications to treat a population in high need of effective therapies.    
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Article: Ledipasvir and Sofosbuvir for HCV in Patients Coinfected with HIV-1—S Naggie et al.

Source:  New England Journal of Medicine DOI: 10.1056/NEJMoa1501315

Results and Conclusions
The study included 335 patients coinfected with HIV-1 and hepatitis C genotype 1 or 4.  The median age was 52 yo (48-58 yo).  The majority of patients were White 61% (203 pts) and Black 34% (115 pts), male 82% (276), genotype 1a 75%, genotype 4 two percent, cirrhosis 20%, median CD 4+ cell count 628 (469-823), treatment naïve 45%, previously treated 55%. The treatment period was 12 weeks.  Note: I am not including the genotype 4 patients since there were only 8 patients.  

The Bottom Line
The cure rates were 96% for genotype 1a, and 96% for genotype 1b. The cure rates were similar regardless of prior response or degree of liver damage.  The most common side effects were headache, fatigue and diarrhea.  No patients discontinued treatment due to side effects.

Editorial Comment
These results are excellent across subtypes (1a/1b), races, and prior treatment responses.  Gilead has filed for marketing approval with the Food and Drug Administration.  The American Association for the Study of Liver Disease (AASLD) and the Infectious Disease Society of America (IDSA) recommend Harvoni as a treatment for HCV for people coinfected with HIV and hepatitis C.

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Article: Efficacy and safety of grazoprevir (MK-5172) and elbasvir (MK-8742) in patients with hepatitis C virus and HIV co-infection (C-EDGE CO-INFECTION): a non-randomised, open-label trial—J K Rockstroh, et al

Source:  The Lancet HIV Volume 2, No. 8, e319–e327, August 2015

Results and Conclusions
The study was conducted in people with HIV/HCV coinfection to evaluate grazoprevir/elbasvir (one pill, once-a-day) to treat HCV genotype 1, 4, and 6. The treatment period was 12 weeks. There were 218 patients in the phase 3 trial.  The trial was conducted in Europe, the United States and Australia.

The Bottom Line
The overall cure rate was 96% (210 of 218 patients).  All patients who had cirrhosis were cured.  The most common side effects were fatigue, headache and nausea. No patients discontinued treatment due to side effects.

Editorial Comment
The high cure rates and fewer side effects plus no treatment discontinuation due to treatment-related side effects equals very good news for patients.

The once-a-day combination of grazoprevir/elbasvir when approved is going to be a welcome addition to the other therapies to treat hepatitis C in people who are HIV and HCV coinfected.  

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Article: Daclatasvir plus Sofosbuvir for HCV in Patients Coinfected with HIV-1—D L Wyles et al.  
Source:  New England Journal of Medicine DOI: 10.1056/NEJMoa1503153

Results and Conclusions
There were 3 different treatment groups. All the groups received daclatasvir plus sofosbuvir. Note: Since there was a small number of genotype 2, 3, and 4 patients—I omitted these results.  For this article I am just listing the genotype 1 results.    

The Bottom Line
The patient characteristics, treatment durations and cure rates are included below:

1. Naïve (untreated patients): 101 patients; median age 52 yo; male sex 91%; race: White 65%, Black 30%; genotype 1a: 70%, genotype 1b: 12%; cirrhosis 9%; median CD4+ count 520 (122-1147). Treatment duration = 12 weeks. Cure rate = 96%
2. Naïve (untreated patients): 50 patients; median age 51 yo; male 84%; race White 56%, Black 38%; Genotype 1a 70%, Genotype 1b 12%; cirrhosis 10%; treatment duration = 8 weeks.  Cure rate = 76%
3. Treatment Experienced:  52 patients; median age 57 yo; male 83%; race White 60%, Black 38%; genotype 1a 63%, genotype 1b 21%; cirrhosis 29%; treatment duration =12 weeks.  Cure rate = 98%

The most common side effects were fatigue, nausea, and headache.  No patient discontinued due to side effects.

Editorial Comment
The 12-week treatment groups had good cure rates as opposed to the 8-week treatment response group.  The treatment-experienced group #3 with a 38% Black population and a relatively high cirrhotic population achieved nearly perfect cure rates. The drawback of this combination is going to be the high price tag of the combination of these two drugs.

Note:  Another issue with treating hepatitis C in people with HIV is the potential drug-drug interactions with HIV medications.  For more information visit the AASLD/IDSA  HCV Guidelines http://www.hcvguidelines.org/full-report-view.

FDA approves Technivie for treatment of chronic hepatitis C genotype 4

For Immediate Release

July 24, 2015

The U.S. Food and Drug Administration today approved Technivie (ombitasvir, paritaprevir and ritonavir) for use in combination with ribavirin for the treatment of hepatitis C virus (HCV) genotype 4 infections in patients without scarring and poor liver function (cirrhosis).

Technivie in combination with ribavirin is the first drug that has demonstrated safety and efficacy to treat genotype 4 HCV infections without the need for co-administration of interferon, an FDA-approved drug also used to treat HCV infection.

“Today’s approval provides the first treatment option for patients with genotype 4 HCV infections without requiring use of interferon,” said Edward Cox, M.D., director of the Office of Antimicrobial Products in the FDA’s Center for Drug Evaluation and Research.

Hepatitis C is a viral disease that causes inflammation of the liver that can lead to diminished liver function or liver failure. Most people infected with HCV have no symptoms of the disease until liver damage becomes apparent, which may take several years. Some people with chronic HCV infection develop cirrhosis over many years, which can lead to complications such as bleeding, jaundice (yellowish eyes or skin), fluid accumulation in the abdomen, infections or liver cancer. According to the Centers for Disease Control and Prevention, approximately 2.7 million Americans are infected with HCV, of which genotype 4 is one of the least common.

The safety and efficacy of Technivie with ribavirin were evaluated in a clinical trial of 135 participants with chronic HCV genotype 4 infections without cirrhosis. Ninety-one participants received Technivie with ribavirin once daily for 12 weeks. Forty-four participants received Technivie once daily without ribavirin for 12 weeks. The studies were designed to measure whether a participant’s hepatitis C virus was no longer detected in the blood 12 weeks after finishing treatment (sustained virologic response), suggesting a participant’s infection had been cured.

Results showed that 100 percent of the participants who received Technivie with ribavirin achieved a sustained virologic response. Of those who received Technivie without ribavirin, 91 percent achieved sustained virologic response.

Safety information was available for 316 participants with HCV treated with the recommended dose of Technivie in combination with other anti-HCV drugs in clinical trials. The three drugs included in Technivie are also included in Viekira Pak, previously approved for the treatment of HCV genotype 1 infection. Additional safety information for those drugs was available from the Viekira Pak trials. The most common side effects of Technivie with ribavirin were fatigue, weakness (asthenia), nausea, insomnia, itching (pruritus) and other skin reactions.

Technivie carries a warning alerting patients and health care providers that elevations of liver enzymes to greater than five times the upper limit of normal occurred in approximately 1 percent of clinical trial participants. The elevations occurred more frequently in females taking contraceptives containing ethinyl estradiol. Contraceptives containing ethinyl estradiol must be discontinued prior to starting Technivie. Hepatic laboratory testing should be performed during the first four weeks of starting treatment, and as clinically indicated thereafter.

Technivie and Viekira Park are marketed by AbbVie Inc. based in North Chicago, Illinois.

The FDA, an agency within the U.S. Department of Health and Human Services, protects the public health by assuring the safety, effectiveness, and security of human and veterinary drugs, vaccines and other biological products for human use, and medical devices. The agency also is responsible for the safety and security of our nation’s food supply, cosmetics, dietary supplements, products that give off electronic radiation, and for regulating tobacco products.

Press Release Source:  http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm455857.htm

Nursing Times-NHS-NICE gives backing to hepatitis C drug in latest draft guidance

“The marketing authorisation for ledipasvir-sofosbuvir recommends treatment for hepatitis C genotypes 1, 3 – in combination with ribavirin – and 4”.

“Genotypes 1 and 3 hepatitis C account for the majority of chronic hepatitis C cases in England (46% and 43%, respectively). Genotype 4 hepatitis C accounts for around 4% of cases”.

“Ledipasvir-sofosbuvir, manufactured by Gilead, is administered orally as a single tablet – with or without ribavirin – and works by inhibiting the replication of the hepatitis C virus. It prevents hepatitis C virus replication by inhibiting the NS5A and NS5B proteins”.

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Gilead Announces SVR12 Rates From Phase 3 Study Evaluating Harvoni® for the Treatment of Chronic Hepatitis C in Patients Co-Infected With HIV

– 96 Percent SVR12 Rate for Hepatitis C Genotypes 1 and 4 Among HIV-infected Patients on Antiretroviral Therapy – 

SEATTLE--(BUSINESS WIRE)--Feb. 26, 2015-- Gilead Sciences, Inc. (NASDAQ:GILD) today announced results from a Phase 3 study, ION-4, evaluating the once-daily single tablet regimen Harvoni^® (ledipasvir 90 mg/sofosbuvir 400 mg) for the treatment of genotypes 1 or 4 chronic hepatitis C virus (HCV) infection among patients co-infected with HIV. In the trial, 96 percent (n=321/335) of HCV patients achieved a sustained virologic response 12 weeks after completing therapy (SVR12). Patients who achieve SVR12 are considered cured of HCV infection. These data were presented in a late-breaker oral session (Session 152LB) at the 22^nd Conference on Retroviruses and Opportunistic Infections (CROI) in Seattle.

“This trial provides strong evidence that people who are co-infected with HIV can achieve very high rates of hepatitis C cure with a combination direct-acting antiviral regimen,” said Susanna Naggie, MD, MHS, Director of Infectious Diseases Research at Duke Clinical Research Institute and Principal Investigator for the ION-4 study. “These high cure rates were observed in most of the historically difficult-to-treat sub-populations, including those who failed previous treatment and those with cirrhosis. We are greatly encouraged by these findings.”

ION-4 is a Phase 3, multicenter, open-label study investigating the efficacy, safety and tolerability of Harvoni treatment for 12 weeks in 335 patients with HCV genotype 1a (75 percent), 1b (23 percent) or 4 (2 percent) and HIV-1 co-infection. The study included HCV treatment-naïve (45 percent) and treatment-experienced (55 percent) patients, including patients with compensated cirrhosis (20 percent), whose HIV was suppressed using one of three HIV antiretroviral (ARV) regimens: tenofovir and emtricitabine with efavirenz (Atripla^®), raltegravir or rilpivirine (Complera^®).

SVR12 rates did not differ significantly by prior HCV treatment status, presence or absence of cirrhosis, or ARV regimen. No patients discontinued Harvoni due to an adverse event (AE). Of the 14 patients that did not achieve SVR12, two patients experienced virologic failure during treatment (likely due to non-compliance per physician reporting), 10 experienced virologic relapse post-treatment, one was lost to follow up and one died due to causes unrelated to study drug. The most common AEs reported were headache (25 percent), fatigue (21 percent) and diarrhea (11 percent).

Harvoni received regulatory approval for the treatment of chronic HCV genotype 1 infection in adults in the United States in October 2014. Based on the ION-4 trial results, Gilead plans to file a supplemental New Drug Application with the U.S. Food and Drug Administration for Harvoni to include the results from this study in the U.S. label. Harvoni received marketing authorization in Europe in November 2014, where data from a small study in HIV-HCV co-infected patients (ERADICATE) are included in the prescribing information. -

See more at: http://gilead.com/news/press-releases/2015/2/gilead-announces-svr12-rates-from-phase-3-study-evaluating-harvoni-for-the-treatment-of-chronic-hepatitis-c-in-patients-coinfected-with-hiv#sthash.MHNmiL6v.dpuf

Daclatasvir for hepatitis C: Hint of added benefit in genotype 4

Daclatasvir (trade name Daklinza) has been approved since August 2014 for the treatment of adults with chronic hepatitis C (CHC) infection. According to the dossier assessment conducted by the German Institute for Quality and Efficiency in Health Care (IQWiG) in December 2014, no added benefit could be derived for daclatasvir.

In an addendum, the Institute now examined information subsequently submitted by the drug manufacturer in the commenting procedure: According to the findings, there is a hint of an added benefit for treatment-naive patients with genotype 4. The extent is non-quantifiable, however. The study for patients infected with hepatitis C virus (HCV) of genotype 3, which was presented for the first time, is unsuitable to derive an added benefit.

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