Post by icemandios on Nov 29, 2023 14:10:06 GMT
Interim Results from Ongoing Clinical Study Confirm EB613 Optimized Profile for Osteoporosis Treatment and Potential for Entera’s Next Generation Oral Peptide Platform
EB613 Continues to Display an Optimal Profile as First-in-Class Oral PTH(1-34) Peptide for Osteoporosis
The Phase 1 study first compared the PK profile of Entera’s Phase 3 candidate, oral once-daily PTH(1-34) mini-tablets (EB613, a.k.a. EBP05 formulation) with subcutaneous (SC) PTH(1-34) 20 g (Forteo®). Consistent with previously reported PK and bioavailability data, EBP05 induced a rapid and dose-proportional increase in plasma drug concentrations of PTH(1-34) at all doses tested. The target bioavailability of PTH (1-34) with EB613 at doses of 1.5 mg and 2.5 mg, covering the dose range planned for phase 3 was met. Additionally, EB613 exhibited consistent and statistically significant (p<0.05) effects across all early PD markers such as plasma levels of endogenous PTH(1-84), serum calcium, phosphorus, and 1,25-dihydroxyvitamin D.
“EB613’s reproducible PK profile across all our clinical studies, irrespective of age and gender, demonstrates the superiority of our platform to consistently deliver oral peptides in a small and convenient tablet form. Although the amino acid sequence in our oral PTH(1-34) is identical to commercially available injectable teriparatide, there is a clear difference in the exposure profile. EB613 appears to produce a shorter duration of osteoblast and osteoclast activation, which is essential for osteoporosis treatment. EB613 induces the “pulsatile” exposure required to simultaneously stimulate bone formation (anabolic) with a mild anti-resorptive property, as compared to Forteo®. This exciting mechanism is consistent with the primary endpoint, bone turnover data reported from our placebo-controlled Phase 2 study in post-menopausal women at high risk of osteoporosis and potentially, the reason we see more rapid BMD increases at 6 months of treatment with EB613, especially at the total hip and proximal femur sites,” said Miranda Toledano, Chief Executive Officer of Entera.
Next Generation Platform Demonstrates Robust Bioavailability with Novel Oral Peptide Compositions
The Phase 1 PK study also assessed novel compositions comprising PTH(1-34) as a model peptide to test Entera’s proprietary, next generation platform.
The new compositions show enhanced bioavailability (BA) versus our first-generation platform, as expected from pre-clinical data. All formulations demonstrated a consistent PK profile to EBP05 with rapid absorption and elimination; and induced fast PD responses increasing calcium, vitamin D levels along with reducing phosphate and endogenous PTH(1-84).
Entera expects to unveil additional data at an upcoming conference.
About Entera Bio
Entera focuses on significant unmet medical needs where an oral tablet form of a peptide treatment or protein replacement therapy holds the potential to transform the standard of care. The Company’s oral PTH (1-34) teriparatide mini tablets have been administered to a total of 255 subjects (153 patients) across Phase 1 and Phase 2 studies, with demonstrated bioavailability and clinical benefit across two distinct diseases. The Company’s most advanced product candidate, EB613 (oral PTH (1-34), teriparatide), is being developed as the first oral, osteoanabolic (bone building) once-daily tablet treatment for post-menopausal women with low BMD and high-risk osteoporosis, with no prior fracture. A placebo controlled, dose ranging Phase 2 study of EB613 tablets (n= 161) met primary (PD/bone turnover biomarker) and secondary endpoints (BMD). Entera is preparing to initiate a Phase 3 registrational study for EB613. EB612 is being developed as the first tablet peptide replacement therapy for the treatment of hypoparathyroidism. The Company is currently conducting a phase 1 PK study of novel PTH formulations using its proprietary, next generation oral delivery platform. Entera is also developing oral GLP-2 peptide as an injection-free alternative for patients suffering from short bowel syndrome and other severe intestinal and malabsorption metabolic conditions and oral Oxyntomodulin (GLP1/glucagon) peptide for obesity in collaboration with OPKO Health. For more information on Entera Bio, visit www.enterabio.com