On April 8, 2021 Secura Bio, Inc. (Secura Bio) – (www.securabio.com), an integrated pharmaceutical company dedicated to the worldwide development and commercialization of impactful oncology therapies, reported that it has completed enrollment, with 101 patients, into the PRIMO study, which is evaluating COPIKTRA for the treatment of patients with relapsed or refractory Peripheral T-cell Lymphoma (PTCL) (Press release, Secura Bio, APR 8, 2021, https://www.prnewswire.com/news-releases/secura-bio-announces-enrollment-completion-of-the-copiktra-duvelisib-study-primo-in-peripheral-t-cell-lymphoma-301264723.html [SID1234577765]). The completion of study enrollment is an important milestone in the continued development of COPIKTRA to treat T-cell lymphomas, a disease category for which it is not currently indicated.
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The PRIMO study is a global, multi-center, open-label, parallel cohort registration-directed Phase 2 study. In the dose optimization portion of the study, patients were randomized to receive COPIKTRA 25mg twice daily (cohort 1) or COPIKTRA 75mg twice daily continuously (cohort 2) until disease progression or unacceptable toxicity. Based on the dose optimization results, an expansion group was added in which COPIKTRA was dosed at 75mg twice daily for two cycles, followed by 25mg twice daily, until disease progression or unacceptable toxicity. The primary endpoint in the expansion phase of the study is independent review committee assessed overall response rate (ORR). Secondary endpoints include duration of response (DOR) and safety.
COPIKTRA is an oral inhibitor of phosphoinositide 3-kinase (PI3K), and the first approved dual inhibitor of PI3K-delta and gamma pathways, which are involved in the proliferation and sustenance of malignant cells.
"Secura Bio will continue to aggressively support the development of COPIKTRA in the treatment of T-cell malignancies, because these patients often have limited therapeutic options and generally poor outcomes, and because PI3K inhibition appears to be a relevant, safe and promising mechanism of action" said Dr. David Cohan, Chief Medical Officer of Secura Bio.
For the treatment of PTCL, COPIKTRA monotherapy has received Fast Track status and Orphan Drug Designation, and investigations are imminently planned in combination with other proven anti-cancer agents.
"Secura Bio now has two meaningful oncology drugs with novel modes of action that offer the potential to build a broad portfolio of indications in hematologic and solid malignancies. We will also fully explore the combination of COPIKTRA with FARYDAK (panobinostat), Secura Bio’s pan-HDAC inhibitor" said Joseph M. Limber, President and CEO of Secura Bio.
Interim results of the PRIMO study are expected to be published later in 2021.