Smartphone-delivered Therapeutic Evaluative Conditioning for suicidal thoughts and behavior

A One-Arm Open Trial of a Smartphone Delivered Treatment for Suicidal Thoughts and Behavior

Not applicable Interventional Massachusetts General Hospital · NCT06967545

This study will test whether a smartphone program called Therapeutic Evaluative Conditioning (TEC-S) can reduce suicidal thoughts and behaviors in adults who have had frequent recent suicide ideation.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment20 (estimated)
Ages18 Years and up
SexAll
SponsorMassachusetts General Hospital Academic / other
Locations1 site (Boston, Massachusetts)
Trial IDNCT06967545 on ClinicalTrials.gov

What this trial studies

This one-arm open trial will enroll 20 adults in the greater-Boston area who report recent and frequent suicidal thoughts or behaviors. Participants will complete ecological momentary assessments (EMA) three times daily and will have optional access to the smartphone-delivered Therapeutic Evaluative Conditioning for Suicide (TEC-S) intervention. The intervention uses classical evaluative conditioning delivered via phone to try to change attitudes toward suicide, and weekly behavioral and self-report measures will track hypothesized mechanisms and outcomes. The primary aims are to test safety, acceptability, and preliminary efficacy of TEC-S in reducing suicidal thoughts and behaviors.

Who should consider this trial

Good fit: Adults 18 or older who live in the Boston metropolitan area, have experienced frequent recent suicidal ideation (about ≥5 days in the past month), own an iOS or Android smartphone, and can provide informed consent and an emergency contact are the ideal candidates.

Not a fit: People with recent hypo/manic symptoms, recent homicidal ideation, a lifetime psychosis-spectrum diagnosis, those judged to be at acute imminent suicide risk, or individuals living outside the Boston area or without a smartphone are unlikely to be eligible or to benefit from this pilot.

Why it matters

Potential benefit: If successful, TEC-S could provide a low-burden, widely accessible smartphone option to help reduce suicidal thoughts and behaviors by changing attitudes toward suicide.

How similar studies have performed: Similar smartphone- and EMA-based interventions for suicidal ideation have shown mixed but promising early results, while TEC-S specifically—applying evaluative conditioning to suicide-related attitudes—is relatively novel and largely untested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults ages 18+
* Relatively frequent and recent (≥5 days within the past-month) active suicidal thoughts as assessed via SITBI-R.
* Willing and able to provide at least one emergency contact (name, phone number, relation).
* Owns an Android or iOS smartphone.
* Possesses at least occasional access to Wi-Fi-enabled internet for data down/uploads.
* Fluent in English and willing to provide informed consent.
* Living in the Boston metropolitan area (i.e., \~50 mile radius around Boston, MA)

Exclusion Criteria:

* Recent (past 3-month) hypo/manic symptoms or homicidal ideation or lifetime psychosis spectrum diagnosis as assessed via MINI 7.0.2.
* Recent acute suicide risk operationalized as affirmative responses to BOTH below items during structured clinical interview AND evaluation by the PI in consultation with Mentors/Advisor Drs. Wilhelm, Kleiman, and/or Bentley:
* At any time in past week: ≥ 8/10 current intent to act on suicidal thoughts (0 \["not at all"\] to 10 \["extremely strong"\]); AND
* At any time in past week: thought of a specific suicide plan (i.e, known method/means and/or location) with access to lethal means
* Impaired vision (e.g., legal blindness), technological illiteracy, or intellectual disability that might impair ability to provide valid data and/or informed consent.

Where this trial is running

Boston, Massachusetts

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Suicide AttemptSuicide IdeationSuicideEcological momentary assessmentTherapeutic Evaluative Conditioning
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.