RedHill Biopharma's Phase 2/3 COVID-19 Study of Opaganib Passes Fourth DSMB Review with Unanimous Recommendation to Continue
- Independent Data Safety Monitoring Board unanimously recommends continuation of the global Phase 2/3 study of orally-administered opaganib in severe COVID-19 pneumonia based on review of unblinded safety data from the first 255 treated patients
- The 464-patient global Phase 2/3 COVID-19 study is over 75% enrolled, with completion of enrollment expected in the coming weeks
- Opaganib potentially minimizes likelihood of resistance due to viral mutations by targeting a human cell component involved in viral replication
The global Phase 2/3 randomized, double-blind, parallel-arm, placebo-controlled study of opaganib in patients with severe COVID-19 pneumonia requiring hospitalization and treatment with supplemental oxygen (NCT04467840), is over 75% enrolled in approximately 40 recruiting sites.
RedHill recently announced positive top-line safety and efficacy data from the non-powered
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About Opaganib (Yeliva®, ABC294640)
Opaganib, a new chemical entity, is a proprietary, first-in-class, orally-administered, sphingosine kinase-2 (SK2) selective inhibitor with demonstrated dual anti-inflammatory and antiviral activity that targets a host cell component of viral replication, potentially minimizing the likelihood of viral resistance. Opaganib has also shown anticancer activity and has the potential to target multiple oncology, viral, inflammatory, and gastrointestinal indications.
Opaganib received Orphan Drug designation from the
Opaganib demonstrated potent antiviral activity against SARS-CoV-2, the virus that causes COVID-19, completely inhibiting viral replication in an in vitro model of human lung bronchial tissue. Additionally, preclinical in vivo studies have demonstrated opaganib's potential to ameliorate inflammatory lung disorders, such as pneumonia, and mitigate pulmonary fibrotic damage, and has shown decreased fatality rates from influenza virus infection and ameliorated Pseudomonas aeruginosa-induced lung injury by reducing the levels of IL-6 and TNF-alpha in bronchoalveolar lavage fluids.
Opaganib was originally developed by
The development of opaganib has been supported by grants and contracts from
The ongoing studies with opaganib are registered on www.ClinicalTrials.gov, a web-based service by the
About RedHill Biopharma
This press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements may be preceded by the words "intends," "may," "will," "plans," "expects," "anticipates," "projects," "predicts," "estimates," "aims," "believes," "hopes," "potential" or similar words. Forward-looking statements are based on certain assumptions and are subject to various known and unknown risks and uncertainties, many of which are beyond the Company's control and cannot be predicted or quantified, and consequently, actual results may differ materially from those expressed or implied by such forward-looking statements. Such risks and uncertainties include the risk of a delay in top-line data from the Phase 2/3 COVID-19 study, that such a study may not be successful, that opaganib will not be effective against emerging viral variants as well as risks and uncertainties associated with (i) the initiation, timing, progress and results of the Company's research, manufacturing, preclinical studies, clinical trials, and other therapeutic candidate development efforts, and the timing of the commercial launch of its commercial products and ones it may acquire or develop in the future; (ii) the Company's ability to advance its therapeutic candidates into clinical trials or to successfully complete its preclinical studies or clinical trials (iii) the extent and number and type of additional studies that the Company may be required to conduct and the Company's receipt of regulatory approvals for its therapeutic candidates, and the timing of other regulatory filings, approvals and feedback; (iv) the manufacturing, clinical development, commercialization, and market acceptance of the Company's therapeutic candidates and Talicia®; (v) the Company's ability to successfully commercialize and promote Movantik®, Talicia® and Aemcolo®; (vi) the Company's ability to establish and maintain corporate collaborations; (vii) the Company's ability to acquire products approved for marketing in the
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 Opaganib is an investigational new drug, not available for commercial distribution.
 Xia C. et al. Transient inhibition of sphingosine kinases confers protection to influenza A virus infected mice. Antiviral Res. 2018 Oct; 158:171-177. Ebenezer DL et al. Pseudomonas aeruginosa stimulates nuclear sphingosine-1-phosphate generation and epigenetic regulation of lung inflammatory injury. Thorax. 2019 Jun;74(6):579-591.
 Full prescribing information for Movantik® (naloxegol) is available at: www.Movantik.com.
 Full prescribing information for Talicia® (omeprazole magnesium, amoxicillin and rifabutin) is available at: www.Talicia.com.
 Full prescribing information for Aemcolo® (rifamycin) is available at: www.Aemcolo.com.