CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 53 enrolled
Drug / intervention
MM120 +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05200936
NCT05200936Phase 2Completed

Safety and Efficacy of Repeated Low Dose d-Lysergic Acid Diethylamide (LSD) D-tartrate (MM120) as Treatment for ADHD in Adults: a Multi-center, Randomized, Double-blind, Placebo-controlled Phase 2a Proof of Concept Trial

Definium Therapeutics US, Inc.·interventional·Posted Jan 21, 2022·Updated Feb 27, 2026

In Brief

A Phase 2 clinical trial evaluating MM120 and Placebo for ADHD and Attention Deficit Disorder. Completed, enrolled 53 participants across 2 sites in 2 countries.

Detailed Summary

This study measures the safety and efficacy of repeated low dose MM120 as treatment for ADHD in adults: a multi-center, randomized, double-blind, placebo-controlled

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesNetherlands, Switzerland
Collaborators--

Timeline

Phase 2CompletedFinished
20222023202420252026
First PostedJan 21, 2022
Enrollment StartDec 17, 2021
Primary CompletionNov 6, 2023
Study CompletionDec 4, 2023
TodayJul 2, 2026
Enrollment to primary: 1.9 yearsPosted 4.4 years ago

Interventions

MM120drug

MM120 is a psychedelic drug that can cause intensified thoughts, emotions, and sensory perception. At sufficiently high dosages MM120 manifests primarily visual, as well as auditory, hallucinations.

Placeboother

A treatment which is designed to have no therapeutic value.