VRC 602: A Phase 1 Dose-Escalation Study of the Safety and Pharmacokinetics of a Human Monoclonal Antibody, VRC-HIV MAB060-00-AB (VRC01),Administered Intravenously or Subcutaneously to Healthy Adults

Study Design: This is the first study in healthy adults of the VRC-HIVMAB060-00-AB (VRC01) monoclonal antibody (MAb). It is a dose-escalation study to examine safety, tolerability, dose, and pharmacokinetics of VRC01. The hypothesis is that VRC01 will be safe for administration to healthy adults by the intravenous (IV) and subcutaneous (SC) routes and will not elicit hypersensitivity reactions. A secondary hypothesis is that VRC01 will be detectable in human sera with a definable half-life. The SC route evaluation will be placebo-controlled and conducted double-blinded to evaluate safety and tolerability of VRC01 and placebo (VRC-PLAMAB068-00-AB).

Products Description: VRC-HIVMAB060-00-AB (VRC01) is a human MAb targeted to the HIV-1 CD4 binding site. It was developed by VRC/NIAID/NIH and manufactured under cGMP by the Vaccine Pilot Plant (VPP) operated by Leidos Biomedical Research, Inc. (formerly SAIC-Frederick, Inc.), Frederick, MD. Vials are provided at 100 plus or minus 10 mg/mL in a volume of 2.25 mL/vial.

VRC-PLAMAB068-00-AB (placebo) is a sterile, buffered aqueous solution of 25 mM Sodium Citrate, 50 mM Sodium Chloride, 150 mM L-Arginine Hydrochloride, 10% Dextran 40 (w/w), and 0.005% Polysorbate 80 (w/w) at pH 5.8. The placebo is filled at 2.25 plus or minus 0.1 mL/vial in 3 mL glass vials.

Subjects: Healthy adults, 18-50 years of age.

Study Plan: There are 3 open-label, dose escalation groups (Groups 1, 2, and 3) for IV administration and 1 blinded, placebo-controlled group (Group 4) for SC administration. Enrollment will start with subject randomization to Groups 1 and 4 in a 1:2 ratio. Within Group 4, subjects will be randomized to SC administration of VRC01 or placebo in a 1:1 ratio. No more than one subject per day in each group will receive the first IV infusion of the study product, and no more than one subject per week will receive the first SC infusion for the first 6 subjects in Group 4. If a first infusion is not administered or there are discontinuations from the study before there are sufficient data to conduct the dose escalation review for a group, then extra subjects may be enrolled into that group in order to have the requisite data on at least 3 subjects. Safety reviews of the IV Groups will be conducted 2 weeks after the third subject completes the Day 0 infusion. Safety review of Group 4 will be conducted 2 weeks after the sixth subject completes the Day 0 infusion.