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NCT05224336 · ClinicalTrials.gov registry record · Phase 1

Psilocybin-assisted Therapy for Phantom Limb Pain

A Phase 1 study, sponsored by University of California, San Diego.

Completed
Registry status
Phase 1
Development phase
10
Enrollment target

NCT05224336: Completed Phase 1 study, sponsored by University of California, San Diego.

NCT05224336 is a Phase 1 study that has completed, run by University of California, San Diego. The registered enrollment target is 10 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (83% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT05224336, a Phase 1 study, has completed, sponsored by University of California, San Diego.

COMPLETED
Registry status
Phase 1
Development phase
10 participants
Enrollment target

Study Summary

This double-blind placebo-controlled pilot study seeks to investigate whether psilocybin can be safely administered to people with chronic phantom limb pain (PLP) in a supportive setting with close follow-up, and its effects on pain symptoms and other moods, attitudes, and behaviors. The investigators' primary hypotheses are that psilocybin is safe to administer in people with PLP and that it will reduce scores on measures of pain. The investigators will also assess a number of secondary measures related to the behavioral and neural responses to pain after psilocybin treatment.

Primary Outcome

A validated visual analogue scale will be used to quantify the intensity and unpleasantness ratings of phantom limb pain. The minimum rating will be represented as "no pain sensation" or "not at all unpleasant," whereas the maximum was designated with "most intense imaginable" or "most unpleasant imaginable." Higher numbers correspond to higher pain.

Interventions

  • DRUG Psilocybin
  • DRUG Placebo Niacin

Trial Details

FieldValue
Enrollment Target 10 participants
Start Date 2022-10-03
Est. Completion 2024-03-07
Phase Phase 1
University of California, San Diego

775 total trials

What the finished NCT05224336 record still lists

NCT05224336 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 10 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (83% lower).

The record links to 0 conditions, and to 2 interventions - of which Psilocybin is the first listed.

NCT05224336 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT05224336 about?

NCT05224336 is a clinical study titled "Psilocybin-assisted Therapy for Phantom Limb Pain". This double-blind placebo-controlled pilot study seeks to investigate whether psilocybin can be safely administered to people with chronic phantom limb pain (PLP) in a supportive setting with close follow-up, and its effects on pain symptoms and other moods, attitudes, and behaviors. The investigato...

What is the current status of trial NCT05224336?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 10 participants. The study started on 2022-10-03. Estimated completion is 2024-03-07.

What interventions are being tested in trial NCT05224336?

The interventions under investigation include: Psilocybin (DRUG), Placebo Niacin (DRUG).

Who is sponsoring clinical trial NCT05224336?

This trial is sponsored by University of California, San Diego, which has 775 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT05224336's enrollment target sits among peer trials

10 1913th of 2000 higher than 46 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT05224336, the US trial registry maintained by the National Library of Medicine. NCT05224336 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.