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Gene test may unlock hypnosis power for pain relief

NCT ID NCT04624880

Knowledge-focused Sponsor: Stanford University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether a genetic marker called COMT can predict how well a person responds to hypnosis for pain after surgery. Researchers tested a new, faster method to read this gene from saliva or blood samples. The goal is to one day use a simple genetic test to personalize pain management and reduce the need for opioids.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

80 people

The number who actually took part.

Started

Jan 2021

Finished

Jul 2021

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Participants in this trial are drawn from three prior trials. One trial measured hypnotizability and collected genetic samples with permission to use for future research, 23 samples will be drawn from this cohort. The second trial measured hypnotizability in healthy volunteers, 42 participants agreed to be contacted for future studies will be invited to participate by submitting a saliva sample for DNA analysis. The third trial used hypnotic analgesia for knee replacement surgery, approximately 32 patients had hypnotizability tested and will be invited to participate for the primary analysis. Another approximately 30 patients from the control group of that trial had pain and opioid use collected postoperatively, and will be invited to provide genetic sample to be used for the secondary outcome analysis.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Prior enrollment in one of 3 specific hypnosis trials * Enrollment is by invitation only Exclusion Criteria: * Participants in the prior trials who declined to be contacted for future research.

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Conditions

The condition(s) this trial relates to.

agnosia inherited disease susceptibility Pain Pain, Postoperative

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Genetic predisposition Pain, postoperative

Contacts and locations

Locations

  • Stanford University/Stanford Healthcare

    Palo Alto, California, 94305, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.