Genentech’s Rozlytrek Gets Expanded Use
FDA has granted Genentech accelerated approval for an expanded use for Rozlytrek (entrectinib) in treating pediatric patients older than one month with solid tumors that have a neurotrophic tyrosine receptor kinase (NTRK) gene fusion without a known acquired resistance mutation, are metastatic or where surgical resection is likely to result in severe morbidity, and have progressed following treatment or have no satisfactory standard therapy. The agency had originally granted accelerated approval in 2019 for the indication in pediatric patients 12 years of age and older. Additionally, the agency approved a new entrectinib oral pellet formulation, and the prescribing information now includes instructions for making an oral suspension from the capsules.
Approval was based on efficacy data from 33 patients with NTRK-positive tumors who received entrectinib, according to an FDA release. Among the 33 pediatric patients, the overall response rate was 70% and median duration of response was 25.4 months, it says. The most common cancers were primary central nervous system tumors and infantile fibrosarcoma, it adds.