Pulled from yahoo finance...this stock could explode 4x if phase 3 does well...cheers ziggy
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Protagonist Therapeutics Announces Topline Data from Phase 2 IDEAL Study of PN-943 in Ulcerative Colitis
April 25, 2022, 4:25 pm
PN-943 achieved 27.5% clinical remission with a delta of 13% versus placebo, with strong concordance across all key proxies including histological and endoscopic endpoints for efficacy, in the twice daily 150 mg dose arm
Achieved clinical proof-of-concept and validation for oral, gut-restricted approach for ulcerative colitis via blockade of the alpha-4-beta-7-integrin pathway
Plans underway for a registrational Phase 3 study anchored around twice daily 150 mg dose of PN-943, pending regulatory guidance
Protagonist to host a conference call today at 6:00 p.m. ET
NEWARK, Calif., April 25, 2022 /PRNewswire/ -- Protagonist Therapeutics (Nasdaq: PTGX) today announced topline results from the Phase 2 IDEAL study evaluating PN-943 in patients with moderate-to-severe ulcerative colitis (UC).
"We are delighted with the strength of the results from the IDEAL study and look forward to working with the regulatory agencies as we prepare for a Phase 3 registrational program for PN-943 in moderate-to-severe ulcerative colitis," said Dinesh V. Patel, Ph.D., President and Chief Executive Officer of Protagonist. "Our oral, gut-restricted alpha-4-beta-7-integrin antagonist agent PN-943 has demonstrated clinical efficacy on par with the approved injectable antibody drug working through the same biological target. We believe the results of the IDEAL study may be paradigm shifting and of broad scientific relevance in understanding IBD pathogenesis and gut-restricted drug development via intervention of the integrin-MAdCAM pathway. Based on its convenience of oral administration and the favorable efficacy and safety results observed to date, we believe that PN-943 has the potential to become a first-in-class, foundational oral medicine for individuals living with moderate-to-severe ulcerative colitis."
"With the IDEAL study, we have demonstrated clinical proof-of-concept and validation for potential treatment of ulcerative colitis via oral, gut-restricted blockade of the alpha-4-beta-7-integrin pathway," said Scott Plevy, M.D., Executive Vice President and Therapeutic Head of Gastroenterology at Protagonist. "The study assessed two doses of PN-943, 150 mg BID and 450 mg BID, and demonstrated a very clear and consistent treatment effect at the lower 150 mg BID dose across key endpoints. The dose response demonstrated by this study is consistent with several other modalities in the integrin pathway. The findings in the lower-dose arm provide consistent evidence of clinical efficacy and safety, and clear direction on the dosing regimen for the Phase 3 registrational program."
"The oral, gut-restricted agent PN-943 appears to exert similar effects at the twice daily 150 mg dose in comparison to the approved injectable alpha-4-beta-7-integrin antibody drug and its mechanism of action," said Bruce Sands, M.D., M.S., the Dr. Burrill B. Crohn Professor of Medicine at the Icahn School of Medicine at Mount Sinai, principal investigator for the IDEAL study and consultant to Protagonist. "There is a clear unmet need and strong clinical benefit for patients with an oral agent working through such a proven IBD specific mechanism, and the IDEAL study results provide good rationale for moving PN-943 forward in a Phase 3 registrational study."
Summary of Key Results
IDEAL is a randomized, double-blinded, placebo-controlled, multicenter Phase 2 study to evaluate the safety and efficacy of PN-943, an oral, gut-restricted, alpha-4-beta-7-integrin antagonist. 159 patients with moderate-to-severe active UC were randomized to either twice daily (BID) with 450 mg or 150 mg PN-943, or placebo, for 12 weeks and analyzed for outcome measures.
While the 450 mg BID dose did not meet the prespecified primary endpoint, the 150 mg dose achieved a placebo versus treatment delta of 13% (p=0.08) in the modified Intent to Treat (mITT) group, and a delta of 16% (p=0.04) in the bio-naïve group. In addition, the 150 mg BID data showed strong concordance across multiple parameters including statistically significant histological remission and endoscopic improvement.
PN-943 150 mg BID dose forms the basis for a Phase 3 registrational program
27.5% clinical remission vs 14.5% in placebo (delta 13%, p=0.08) for mITT analysis
Strong concordance with efficacy across multiple key secondary endpoints with statistically significant differences in histologic remission/improvement and endoscopic improvement
Safety analysis similar for the 150 mg BID dose versus the placebo group
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