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NCT05452772
5-HT2A Agonist Psilocybin in the Treatment of Tobacco Use Disorder
Phase 2 trial testing Psilocybin in Tobacco Use Disorder in 66 participants. Currently enrolling.
1 December 2026
Quick facts
| Lead sponsor | Johns Hopkins University |
|---|---|
| Phase | Phase 2 |
| Status | Recruiting now |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | quadruple |
| Primary purpose | treatment |
| Enrollment | 66 |
| Start date | 1 November 2023 |
| Primary completion | 1 December 2026 |
| Estimated completion | 1 May 2027 |
| Sites | 3 locations across United States |
Drugs / interventions tested
- Psilocybin — full drug profile →
- Niacin (NIACIN) — full drug profile →
Conditions studied
- Tobacco Use Disorder — all drugs for Tobacco Use Disorder →
Sponsor
Johns Hopkins University
Who can join
21 and older, any sex, with Tobacco Use Disorder. Healthy volunteers can join.
What's being measured
Primary outcomes are the specific endpoints the trial is designed to prove or disprove.
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Potential Efficacy (Smoking Cessation)
Time frame: 12 months
Smoking cessation will be dichotomously coded 7-day point prevalence abstinence at 12-month follow-up. This binary outcome (abstinent versus non-abstinent) will be verified via three measures of recent smoking-(1) timeline follow-back (TLFB), a self-report calendar completed retrospectively by participants indicating the number of cigarettes smoked each day; (2) exhaled carbon monoxide (CO), an ob
Sponsor's own description
This is a multi-site, double-blind, randomized clinical trial of the 5-HT2A receptor agonist psilocybin for smoking cessation. Four sites with experience in conducting psilocybin research will be involved in this trial: Johns Hopkins University (JHU), the University of Alabama at Birmingham (UAB), and New York University (NYU). The proposed study will treat 66 participants (22 at each site), randomized to receive either: 1) oral psilocybin (30 mg in session 1 and either 30 mg or 40 mg in session 2); or 2) oral niacin (150 mg in session 1 and either 150 mg or 200 mg in session 2), with sessions 1 week apart.
Publications & conference data
5 peer-reviewed publications reference this trial (live from Europe PMC):
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Therapeutic effect of psilocybin in addiction: A systematic review.
van der Meer PB, Fuentes JJ, Kaptein AA, Schoones JW, et al · · 2023 · cited 55× · PMID 36846225 · DOI 10.3389/fpsyt.2023.1134454 -
Exploring psilocybin-assisted psychotherapy in the treatment of methamphetamine use disorder.
Brett J, Knock E, Korthuis PT, Liknaitzky P, et al · · 2023 · cited 11× · PMID 36998623 · DOI 10.3389/fpsyt.2023.1123424 -
Psychedelics as a potential treatment for tobacco use disorder: a systematic review.
Spoelstra SK, Schoevers RA, Venema SD, Knegtering H. · · 2024 · cited 3× · PMID 39289250 · DOI 10.1007/s44192-024-00095-0 -
Licit use of illicit drugs for treating depression: the pill and the process.
Torrado Pacheco A, Moghaddam B. · · 2024 · cited 2× · PMID 40047885 · DOI 10.1172/jci180217 -
Emerging medications and pharmacological treatment approaches for substance use disorders.
Raymond JS, Athanasopoulos AG, Badolato CJ, Doolan TJ, et al · · 2025 · cited 2× · PMID 39719161 · DOI 10.1016/j.pbb.2024.173952
Verify or expand the search:
- PubMed search for NCT05452772
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
Related trials
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Other recruiting trials for Tobacco Use Disorder
Currently open trials in the same condition.
- NCT07466875 — Auricular Stimulation for Nicotine Withdrawal in Psychiatric Inpatients · NA · recruiting
- NCT06678672 — Contingency Management for Veteran Smokers Undergoing Major Elective Surgery · NA · recruiting
- NCT06006143 — Off-Label Medications for Alcohol Use Disorder Among Patients With HIV: Pilot Study 2 · Phase 2 · active not recruiting
- NCT06883162 — Cannabis-Tobacco Co-Use Treatment Study · Phase 3 · recruiting
- NCT06798324 — tDCS Plus Varenicline for Smoking Cessation · Phase 4 · recruiting
Other Johns Hopkins University trials
Trials by the same sponsor.
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- NCT07532252 — Daridorexant for Alcohol Use Disorder · Phase 2 · not yet recruiting
- NCT06687655 — Impact of Exogenous Ketones on Sleep Apnea · Phase 1, PHASE2 · not yet recruiting
- NCT07079111 — 3D Printed Occlusal Splints for Intraoperative Use · NA · not yet recruiting
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT05452772 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Johns Hopkins University
- Last refreshed: 25 July 2025
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT05452772.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing