CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 21 enrolled / 21 target
Drug / intervention
AXS-12 (Reboxetine) +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/NCT03881852
NCT03881852Phase 2CompletedUpdate Overdue (0.2/mo)Completion was 79mo ago

A Multi-center, Randomized, Double-blind, Placebo-controlled, 3-Week Crossover Study to Assess the Efficacy and Safety of AXS-12 in Subjects With Cataplexy and Excessive Daytime Sleepiness in Narcolepsy

Axsome Therapeutics, Inc.·interventional·Posted Mar 20, 2019·Updated Jun 15, 2026

In Brief

A Phase 2 clinical trial evaluating AXS-12 (Reboxetine) and Placebo for Narcolepsy and 2 related conditions. Completed, enrolled 21 participants across 14 sites.

Signals

Enrollment appears stalled

Detailed Summary

CONCERT (Clinical Outcomes in Narcolepsy and Cataplexy: An Evaluation of Reboxetine Treatment) is a Phase 2, double-blind, randomized, placebo-controlled, crossover, multicenter trial of AXS-12 in patients with narcolepsy. Subjects meeting the entry criteria will be randomized in a 1:1 ratio either to placebo for three weeks followed by AXS-12 (up to 10 mg daily) for three weeks, or to AXS-12 (up to 10 mg daily) for three weeks followed by placebo for three weeks. Efficacy assessments will include the frequency of cataplexy attacks, and measures of other symptoms of narcolepsy.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

Phase 2CompletedFinished
2020202120222023202420252026
First PostedMar 20, 2019
Enrollment StartApr 5, 2019
Primary CompletionNov 27, 2019
TodayJul 2, 2026
Enrollment to primary: 8 monthsPosted 7.3 years ago

Arms & Interventions

AXS-12 (reboxetine)experimental

Drug: AXS-12 (Reboxetine)
Placeboplacebo_comparator

Drug: Placebo

Interventions

AXS-12 (Reboxetine)drug

Dosed orally, twice daily for up to 3 weeks

Placebodrug

Dosed orally, twice daily for up to 3 weeks