Entera Bio (ENTX) Announces FDA Agreement for a Single Phase 3 Clinical Trial to Support an NDA for EB613

Entera Bio Ltd. (NASDAQ: ENTX) announced today the successful conclusion of its Type C meeting and agreement from the U.S. Food and Drug Administration (FDA) that a single Phase 3 placebo-controlled study could support a New Drug Application (NDA) submission of EB613 (oral hPTH (1-34), teriparatide tablets) under the 505(b)(2) regulatory pathway. The FDA also agreed that Total Hip Bone Mineral Density (BMD) could serve as the primary endpoint for the registrational study of EB613 in post-menopausal osteoporosis patients.

The single pivotal Phase 3 clinical trial includes a 24-month placebo-controlled duration with change in Total Hip BMD assessed as the primary endpoint. The 2:1 randomization (EB613 vs. placebo) and planned 400 patients exposed to EB613 are expected to be sufficient to support both the safety and efficacy assessments for the NDA. Furthermore, the FDA agreed with Entera’s proposed enrollment of post-menopausal women with osteoporosis based on a BMD T-score of ≤-2.5 to -3.0 and no major fracture history. This patient population is consistent with that studied during Entera’s Phase 2 6-month dose ranging study of EB613, which met all primary and key secondary endpoints of biochemistry and BMD. Finally, Entera intends to submit relative PK data comparing its oral tablet form of teriparatide, EB613 versus the subcutaneous injection of teriparatide, Forteo® to support the 505(b)(2) pathway.

"This is a major milestone for Entera. We greatly appreciate the opportunity to work collaboratively with the FDA, which was essential for reaching concurrence on all critical elements proposed for the registrational path of EB613,” said Miranda Toledano, Chief Executive Officer of Entera. “We have agreement with FDA to continue to treat the same patient population that significantly benefited from EB613 treatment during our Phase 2 study. These low BMD patients at high risk of fracture are often reluctant to initiate injectable anabolic (bone forming) therapy and represent a large unmet need; 40% of the 3 million currently treated patients across the United States, according to our market research. As the first daily tablet PTH osteoanabolic treatment, we believe EB613 could significantly impact the osteoporosis treatment paradigm. We look forward to advancing EB613 into Phase 3 and initiating patient enrollment during 2023,” said Miranda Toledano, Chief Executive Officer of Entera.

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