This Phase I clinical study evaluates a single dose of 186RNL (radionuclide clinical study drug) administered through a convection enhanced delivery catheter (CED catheter) in participants who have already received a prior treatment of 186RNL.~The clinical study treatment consists of a single administered dose of 186RNL per participant. The proposed dose is up to 8.8 mL as a single administration with an administered dose of 22.3 mCi.~An estimated number of participants to be enrolled in the study is approximately 40.~The clinical study treatment will be administered, following CED placement, by the clinical study physician.~Post-treatment evaluations will be done at Days 3, 7, 14, 28, and every subsequent 28-day interval thereafter until disease progression is confirmed and all treatment related toxicities are resolved. The minimum assessment period for toxicities is 12 weeks.~The U.S. Food and Drug Administration (FDA) has not approved 186RNL for this specific disease.
This is an open-label, multicenter, Phase 1 study to establish the safety and efficacy/tolerability of a single dose of 186RNL by the intraventricular route (via intraventricular catheter) for recurrence glioma in patients who received a prior treatment of 186RNL.