CI

At a glance

ClinicalIndex Comparison Record
Phase 1Completed· 225 enrolled / 225 target
Drug / intervention
Dexmedetomidine +1 moredrug
Likely dose
30 Microgramsfrom 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/NCT04470050
NCT04470050Phase 1CompletedOn Track (3.1/mo)Completion was 64mo ago

A Phase 1b/2 Randomized, Double-Blind, Placebo-Controlled, Ascending-Dose Study of BXCL501 to Treat Symptoms of Acute Opioid Withdrawal in Patients With Opioid Use Disorder Who Are Physically Dependent on Opioids

BioXcel Therapeutics Inc·interventional·Posted Jul 14, 2020·Updated Jun 3, 2026

In Brief

A Phase 1 clinical trial evaluating Dexmedetomidine and Placebo for Opioid Withdrawal. Completed, enrolled 225 participants across 3 sites.

Detailed Summary

This Phase 1b/2 inpatient study assessed the safety, pharmacokinetics, and early signs of efficacy of escalating doses of BXCL501 versus placebo following discontinuation of morphine maintenance. The opioid (morphine) maintenance phase (Phase 1b) included Days 1-5; the randomized BXCL501/placebo phase (Phase 2) included Days 6-12. The randomized phase was followed by 2 sequential days, Days 13 and 14, utilizing treatment of BXCL501-placebo sublingual films and morphine-placebo capsules for all subjects who remained in the study.

Study Details

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

Timeline

Phase 1CompletedFinished
202120222023202420252026
First PostedJul 14, 2020
Enrollment StartJun 9, 2020
Primary CompletionFeb 18, 2021
TodayJul 2, 2026
Enrollment to primary: 8 monthsPosted 6.0 years ago

Arms & Interventions

Cohort 1- Dexmedetomidine (30 Micrograms) vs. Placeboexperimental

Sublingual film containing 30 Micrograms Dexmedetomidine or Placebo Sublingual film

Drug: DexmedetomidineDrug: Placebo
Cohort 2- Dexmedetomidine (60 Micrograms) vs. Placeboexperimental

Sublingual film containing 60 Micrograms Dexmedetomidine or Placebo Sublingual film

Drug: DexmedetomidineDrug: Placebo
Cohort 3- Dexmedetomidine (90 Micrograms) vs. Placeboexperimental

Sublingual film containing 90 Micrograms Dexmedetomidine or Placebo Sublingual film

Drug: DexmedetomidineDrug: Placebo
Cohort 4- Dexmedetomidine (120 Micrograms) vs. Placeboexperimental

Sublingual film containing 120 Micrograms Dexmedetomidine or Placebo Sublingual film

Drug: DexmedetomidineDrug: Placebo
Cohort 5- Dexmedetomidine (180 Micrograms) vs. Placeboexperimental

Sublingual film containing 180 Micrograms Dexmedetomidine or Placebo Sublingual film

Drug: DexmedetomidineDrug: Placebo
Cohort 6- Dexmedetomidine (240 Micrograms) vs. Placeboexperimental

Sublingual film containing 240 Micrograms Dexmedetomidine or Placebo Sublingual film

Drug: DexmedetomidineDrug: Placebo

Interventions

Dexmedetomidinedrug

Sublingual Film of Dexmedetomidine

Placebodrug

Sublingual Placebo film