Brief therapy for paranoia in 16–18 year olds

Assessing the Acceptability and Feasibility of TRUST, a Brief Intervention for Paranoia in Adolescents.

Not applicable Interventional Royal Holloway University · NCT07350954

We will try a six-session, values-based and imagery talking therapy to see if it helps 16–18 year olds in CAMHS who have troubling paranoid thoughts.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment8 (estimated)
Ages16 Years to 18 Years
SexAll
SponsorRoyal Holloway University Academic / other
Locations1 site (London)
Trial IDNCT07350954 on ClinicalTrials.gov

What this trial studies

This feasibility and acceptability project offers a six-session, values-based and imagery intervention to adolescents (16–18) seeking help from CAMHS for paranoia. Eligible participants (R-GPTS Scale B ≥11, English-speaking, capacity to consent, low-to-moderate risk) will complete baseline, during-treatment and post-treatment measures including the R-GPTS. The trial will track recruitment, retention, session completion and participant feedback to determine whether the intervention can be delivered within a CAMHS setting. Preliminary clinical changes in paranoia severity will be reported, but the study is not powered to provide definitive efficacy conclusions.

Who should consider this trial

Good fit: Ideal candidates are 16–18 year olds seeking care from CAMHS who score ≥11 on the R-GPTS, can consent, speak English, have low-to-moderate risk levels, and want help for paranoia.

Not a fit: Those with high current safety risk (for example active suicidal intent), severe comorbid conditions (such as primary substance dependence), significant cognitive or developmental impairments, or already receiving another psychological therapy are unlikely to be eligible or to benefit from this intervention.

Why it matters

Potential benefit: If successful, this short, developmentally tailored therapy could reduce paranoid thoughts and improve daily functioning for adolescents within CAMHS.

How similar studies have performed: Values-based and mental imagery techniques have shown promise for reducing paranoia in adults, but this brief, adolescent-focused combination is novel and not yet tested in youth.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Aged 16-18
* Seeking help from a Child and Adolescent Mental Health Service (CAMHS)
* A score ≥ 11 on the R-GPTS (Scale B)
* Sufficient understanding of English
* Capacity to consent, as assessed during the initial interview
* Wanting support with paranoia
* Low- moderate mental health risks (emotional difficulties that impact functioning, but no immediate risk to safety e.g., no suicidal intent).

Exclusion Criteria:

* Severe comorbid diagnoses apparent at the initial assessment (e.g., a primary alcohol or substance dependence issue measured using standardised assessments)
* The presence of a developmental disability or cognitive impairment that would interfere with participation.
* Concurrent participation in another psychological therapy
* High levels of current risk (e.g., significant and immediate concerns about the young person's safety, such as suicidal intent).

Where this trial is running

London

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 ParanoiaAdolescentsChild and Adolescent Mental Health ServiceFeasibilityAcceptabilityMental Health
Last reviewed 2026-06-15 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.