On May 4, 2018 RedHill Biopharma Ltd. (NASDAQ:RDHL) (Tel-Aviv Stock Exchange:RDHL) ("RedHill" or the "Company"), a specialty biopharmaceutical company primarily focused on late clinical-stage development and commercialization of proprietary drugs for gastrointestinal diseases, reported that it has enrolled over 300 of the planned total of 444 patients, in the ongoing confirmatory Phase III study investigating TALICIA (RHB-105)1 for H. pylori infection (ERADICATE Hp2) (Press release, RedHill Biopharma, MAY 4, 2018, View Source [SID1234526140]).
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RedHill remains on track to potentially complete enrollment of the ERADICATE Hp2 study in the third quarter of 2018 and expects to announce top-line results in the fourth quarter of 2018.
TALICIA was granted QIDP (Qualified Infectious Disease Product) designation by the FDA under the GAIN Act, including Fast-Track development, priority New Drug Application (NDA) review of 6 months, if filed, and extended U.S. market exclusivity for a total of eight years.
The two-arm, randomized, double-blind, active comparator, confirmatory Phase III study was designed to enroll 444 non-investigated dyspepsia patients with confirmed H. pylori infection at up to 65 clinical sites in the U.S.. The primary endpoint is eradication of H. pylori infection at 43 through 71 days after initiation of treatment.
Subject to a successful outcome and additional regulatory feedback, the ERADICATE Hp2 study is expected to complete the package required for a potential U.S. NDA for TALICIA. The filing is planned for early 2019 and, if accepted for review, the FDA could potentially approve TALICIA in the second half of 2019.
The ERADICATE Hp2 confirmatory Phase III study with TALICIA (RHB-105) is registered on www.ClinicalTrials.gov, a web-based service of the U.S. National Institutes of Health (NIH), which provides access to information on publicly and privately supported clinical studies.
The first Phase III study with TALICIA (ERADICATE Hp study) successfully met its protocol-defined mITT primary endpoint of superiority over historical standard-of-care (SoC) eradication rate of 70%, with high statistical significance (p<0.001). The study results demonstrated 89.4% efficacy in eradicating H. pylori infection with TALICIA. Notably, the 89.4% efficacy in eradicating H. pylori infection with TALICIA was also superior to subsequent open-label treatment with SoC therapies of patients in the placebo arm of the ERADICATE Hp study, which demonstrated 63% eradication rate in the mITT population (p=0.006), further supporting the potential efficacy of TALICIA. Treatment with TALICIA appeared to be safe and well tolerated.
About H. pylori
H. pylori bacterial infection is a major cause of chronic gastritis, peptic ulcer disease, gastric cancer and mucosa-associated lymphoid tissue (MALT) lymphoma and is estimated to affect over half of the adult population worldwide2.
The 2015 worldwide and U.S. markets for H. pylori eradication therapies were estimated at approximately $4.83 billion and $1.45 billion, respectively3.
About TALICIA (RHB-105):
TALICIA (RHB-105) is a new and proprietary fixed-dose oral combination therapy of two antibiotics and a proton pump inhibitor (PPI) in an all-in-one oral capsule with a planned indication for the treatment of H. pylori infection. H. pylori bacterial infection is a major cause of chronic gastritis, peptic ulcer disease, gastric cancer and mucosa-associated lymphoid tissue (MALT) lymphoma. A first Phase III study with TALICIA (ERADICATE Hp study) was completed in the U.S. with positive results. The study demonstrated an overall success rate of 89.4% in eradicating H. pylori and met its protocol-defined primary endpoint of superiority in eradication of H. pylori infection over historical standard-of-care efficacy levels of 70%, with high statistical significance (p<0.001). A confirmatory Phase III study (ERADICATE Hp2 study) is ongoing in the U.S. Additional studies may be required, subject to FDA review. TALICIA was previously granted Qualifying Infectious Disease Product (QIDP) designation by the FDA, providing a Fast-Track development pathway, as well as NDA Priority Review status, potentially leading to a shorter (6 months) NDA review time by the FDA, if filed. If approved, TALICIA will also receive an additional five years of exclusivity, in addition to the standard exclusivity period, for a total of 8 years of U.S. market exclusivity.