Assembly Biosciences reports chronic hepatitis data, shares jump

Assembly Biosciences announces presentation of ABI-H0731, ABI-H2158 data

Assembly Biosciences (ASMB) announced that data on its lead HBV core inhibitor candidates, ABI-H0731 and ABI-H2158 for the treatment of chronic HBV will be featured in a late-breaking poster session during the American Association for the Study of Liver Diseases Annual Meeting.

Shares jump on hepatitis data, Stockwinners

A hepatitis B infection can result in either an acute infection or a chronic infection. When a person is first infected with the hepatitis B virus, it is called an “acute infection” (or a new infection). Most healthy adults that are infected do not have any symptoms and are able to get rid of the virus without any problems. Some adults are unable to get rid of the virus after six months and they are diagnosed as having a “chronic infection.”

Title: Continued Therapy with ABI-H0731+Nrtl Results in Sequential Reduction/Loss of HBV DNA, HBV RNA, HBeAg, HBcrAg and HBsAg in HBeAg-Positive Patients.

Abstract Summary: Final results from Phase 2a are reported for HBeAg+ patients with chronic HBV infection treated with 731+Nrtl for 24 weeks.

In Study 202, greater mean log10 declines in HBV DNA and RNA were achieved with 731+Nrtl versus entecavir alone.

In Study 201, the proportion of patients on 731+Nrtl versus Nrtl alone achieving DNA target not detected was 69% vs 0%, and the proportion of patients achieving RNA less than35 U/mL whose RNA was greater than or equal to35 U/mL at baseline was 52% vs 0% respectively.

In Study 211, there are 64 HBeAg+ patients currently on extended treatment beyond 24 weeks. Among the 27 HBeAg+ patients receiving 731+Nrtl in Study 201, 41% have now achieved DNA TND along with RNA less than35 U/mL and HBeAg less than1 IU/mL.

At their last time point, Study 202 patients now in Study 211 have demonstrated mean DNA and RNA declines of 6.1 and 3.0 logs, respectively, with observed mean log changes of greater than or equal to 0.6 for HBeAg, greater than 0.8 log for HBcrAg and greater than or equal to 0.4 log for HBsAg.

731 continues to exhibit a favorable safety and tolerability profile in patients treated for up to 1 year, with only mild/moderate adverse events and lab abnormalities, and only a single discontinuation due to a Grade 1 rash.

The combination of 731+NrtI results in faster and deeper declines in HBV DNA and RNA than NrtI alone, as well as subsequent declines in the surrogate markers of cccDNA predictive of cccDNA pool depletion, and HBsAg.

A Visual Guide to Hepatitis, Stockwinners

The emergent data supports the continued development of 731.

Abstract data are as of the time of submission; the poster is expected to include updated safety and efficacy results. Title: The Second-Generation Hepatitis B Virus Core Inhibitor ABI-H2158 is Associated with Potent Antiviral Activity in a 14-Day Monotherapy Study in HBeAg-positive Patients with Chronic Hepatitis B.

Abstract Summary: The Phase 1b study is enrolling sequential cohorts of 9 patients and each cohort will be randomized to receive 2158 or placebo QD for 14 days in a blinded manner.

Dosing in the 1st cohort has been completed. In patients receiving 2158, mean declines from Baseline to Day 15 in HBV DNA and RNA levels were 2.3 log10 and 2.1 log10 IU/mL respectively.

No serious AEs, dose limiting toxicities or premature discontinuations were reported.

Three patients reported a total of 5 mild, drug-related AEs that recovered without intervention; dizziness, fatigue, rash, headache and upper abdominal pain.

Treatment emergent laboratory abnormalities were infrequent, mild and transient, with no ALT elevations Grade greater than or equal to 1 in severity.

Day 14 plasma 2158 Cmax and AUC0-24hr were 3,390 ng/mL and 46,100 hr*ng/mL, respectively.

Results from the initial 100 mg low dose of ABI-H2158 cohort demonstrated potent antiviral activity, a favourable safety profile when administered for 14 days, and support once daily dosing in CHB patients.

Intercept falls on NASH study

Intercept falls after releasing ‘supportive data’ from Phase 3 NASH study

Intercept Pharmaceuticals (ICPT) overnight announced additional “supportive data” from its Phase 3 Regenerate study of obeticholic acid in patients with liver fibrosis due to nonalcoholic steatohepatitis.

stockwinners.com ICPT

Intercept falls after releasing ‘supportive data’ from Phase 3 NASH study, Stockwinners

Nonalcoholic steatohepatitis (NASH) is liver inflammation and damage caused by a buildup of fat in the liver. It is part of a group of conditions called nonalcoholic fatty liver disease. You may be told you have a “fatty liver.”

The new data based on additional analyses show that obeticholic acid “demonstrated robust efficacy across a range of additional histologic and biochemical parameters,” Intercept said in a statement.

The data are being presented today at the International Liver Congress in Vienna, Austria.

The primary efficacy analysis assessed efficacy at 18 months in 931 patients with stage 2 or 3 liver fibrosis due to NASH.

Patients with biopsy proven NASH with fibrosis were randomized 1:1:1 to receive placebo, OCA 10 mg or OCA 25 mg once daily.

A repeat biopsy was conducted after 18 months for histologic endpoint assessment.

Overall, study discontinuations in the primary efficacy analysis population were balanced across treatment groups.

As previously reported, in the primary efficacy analysis, once-daily OCA 25 mg met the primary endpoint of fibrosis improvement with no worsening of NASH in 23.1% of patients compared to 11.9% of placebo patients at the planned 18-month interim analysis, the company said.

In the primary efficacy analysis, a numerically greater proportion of patients in both OCA treatment groups compared to placebo achieved the primary endpoint of NASH resolution with no worsening of liver fibrosis; however, this did not reach statistical significance.

As agreed with the FDA, in order for the primary objective to be met, the study was required to achieve one of the two primary endpoints, it added.

Additional supportive efficacy analyses were conducted using the per protocol population.

Approximately three-fold more patients in the OCA 25 mg group achieved an improvement of fibrosis by greater than or equal to 2 stages compared to placebo, Intercept reported.

ICPT is down 12%, or $14.14, to $106.54.

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Madrigal Pharmaceuticals shares sharply higher on its liver drug

Madrigal’s MGL-3196 achieves primary endpoint in Phase 2 clinical trial

Madrigal Pharmaceuticals shares sharply higher. See Stockwinners.com
Madrigal Pharmaceuticals NASH drug reports positive results

Madrigal Pharmaceuticals (MDGL) announced positive top-line results from a Phase 2 clinical trial in patients with biopsy-proven non-alcoholic steatohepatitis. In this trial, MGL-3196, a first-in-class, oral, once-daily, liver-directed, thyroid hormone receptor beta -selective agonist, demonstrated statistically significant results for the primary endpoint, the percent change in hepatic fat versus placebo as measured by MRI-PDFF, a non-invasive imaging test.

Nonalcoholic fatty liver disease (NAFLD) is a condition in which fat builds up in your liver. Nonalcoholic steatohepatitis (NASH) is a type of NAFLD. If you have NASH, you have inflammation and liver cell damage, along with fat in your liver.

Recent published data have shown a high correlation of the reduction of liver fat of 30% or more as measured by MRI-PDFF to improvement in NASH on liver biopsy.

Statistically significant reductions in ALT and AST were observed in MGL-3196 treated patients; greater reductions in ALT and AST, statistically significant relative to placebo, were observed in the prespecified group of 44/78 patients with relatively higher MGL-3196 drug levels.

In drug-treated relative to placebo patients, statistically significant improvements were also seen in multiple secondary endpoints considered to be potentially clinically relevant in patients with NASH including LDL-C, triglycerides, apolipoprotein B, and Lp(a).

MGL-3196 has been well-tolerated with mostly mild AEs, and a few moderate AEs, the numbers of which are balanced between placebo and drug-treatment groups.

There are no adverse effects of MGL-3196 on safety laboratory or vital sign parameters. There have been three serious adverse effects in the study, all considered unrelated to MGL-3196.

The on-going study remains blinded. Safety, efficacy of NASH resolution by biopsy, and repeat MRI-PDFF will be assessed at 36 weeks. Multiple inflammatory and fibrosis serum biomarkers at 12 and 36 weeks are being and will be assessed.

PRICE ACTION

MDGL closed at $43.90. It last traded at $68.20 in pre-market.


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