Pegtibatinase is currently advancing in a Phase 1/2 dose escalation study to assess its safety, tolerability, pharmacokinetics, pharmacodynamics and clinical effects in patients with classical HCU. Pegtibatinase has been granted Breakthrough Therapy, Rare Pediatric Disease and Fast Track designations by the FDA, as well as Orphan Drug designation in the US and Europe.
On December 15, 2021, Travere announced positive topline results from the ongoing Phase 1/2 COMPOSE Study of pegtibatinase. In the highest dose cohort to date evaluating 1.5mg/kg of pegtibatinase twice weekly (BIW), treatment with pegtibatinase resulted in rapid and sustained reductions in total homocysteine (tHcy) through 12 weeks of treatment, including a 55.1% mean relative reduction in tHcy from baseline as well as maintenance of tHcy below a clinically meaningful threshold of 100 μmol. To date in the study, pegtibatinase has been generally well-tolerated.
Travere is preparing to engage with regulators to establish next steps for a pivotal development program to ultimately support the potential approvals of pegtibatinase for the treatment of classical HCU. The company has also initiated one additional cohort in the COMPOSE study to further inform our understanding of pegtinatinase.
View the press release here