vabrinty - Medication Listings

VABRINTY is a sterile polymeric matrix formulation of leuprolide acetate, a GnRH agonist, for subcutaneous injection. It is designed to deliver leuprolide acetate at a controlled rate over a one-, three-, four, or six-month therapeutic period. Leuprolide acetate is a synthetic nonapeptide analog of naturally occurring gonadotropin releasing hormone (GnRH) that, when given continuously, inhibits pituitary gonadotropin secretion and suppresses testicular and ovarian steroidogenesis. The analog possesses greater potency than the natural hormone. The chemical name is 5-oxo-L-prolyl-L-histidyl-L-tryptophyl-L-seryl-L-tyrosyl-D-leucyl-L-leucyl-L-arginyl-N-ethyl-L-prolinamide acetate (salt) with the following structural formula: VABRINTY is supplied as a pre-connected syringe system comprised of two prefilled syringes (syringe A and syringe B) connected using a coupling device. Immediately prior to administration, the contents of the pre-connected syringe system are mixed until homogenous. VABRINTY is administered subcutaneously, where it forms a solid drug delivery depot. Syringe A contains the in situ polymeric extended release technology consisting of a biodegradable poly (DL-lactide-co-glycolide) (PLGH or PLG) polymer formulation dissolved in a biocompatible solvent, N -methyl-2-pyrrolidone (NMP) and syringe B contains leuprolide acetate. Refer to Table 5 for the delivery system composition and reconstituted product formulation for each VABRINTY product. Table 5. VABRINTY Delivery System Composition and Reconstituted Product Formulation VABRINTY 7.5 mg 22.5 mg 30 mg 45 mg In situ polymeric extended release technology Polymer PLGH PLG PLG PLG Polymer description Copolymer containing carboxyl endgroups Copolymer with hexanediol Copolymer with hexanediol Copolymer with hexanediol Polymer DL-lactide to glycolide molar ratio 50:50 75:25 75:25 85:15 Reconstituted product Polymer delivered 82.5 mg 158.6 mg 211.5 mg 165 mg NMP delivered 160.0 mg 193.9 mg 258.5 mg 165 mg Leuprolide acetate delivered 7.5 mg 22.5 mg 30 mg 45 mg Approximate Leuprolide free base equivalent 7.0 mg 21 mg 28 mg 42 mg Approximate administered formulation weight 250 mg 375 mg 500 mg 375 mg Approximate injection volume 0.25 mL 0.375 mL 0.5 mL 0.375 mL structure