Phase I/2a randomized study (n=116) with single-ascending oral ibogaine doses (3–12 mg/kg) in healthy volunteers followed by a double-blind, placebo-controlled single-dose proof-of-concept in opioid-dependent patients for medically supervised opioid withdrawal.
Stage 1 is a single-blind, within-subject assessment in healthy volunteers using placebo (Day 1) then ibogaine (Day 2) to evaluate safety, tolerability, PK and to establish an MTD/TTD via single-ascending doses (3, 6, 9, 12 mg/kg).
Stage 2 is a randomized, double-blind, parallel-group proof-of-concept in opioid-dependent patients comparing the selected DMX-1002 dose to matching placebo for safety, tolerability and efficacy during medically supervised opioid withdrawal.
Single ascending dose ibogaine (DMX-1002) in Stage 1; selected dose vs placebo in Stage 2.
Single-ascending doses 3 → 6 → 9 → 12 mg/kg of ibogaine HCl (DMX-1002); starting dose 3 mg/kg; single administration per stage.
Matching capsule placebo used in within-subject Stage 1 and parallel Stage 2.
Matching microcrystalline cellulose placebo capsules.