NCT06749444

Brief Summary

Using a randomized controlled design, the project aims to test if cognitive behavioral therapy interventions specifically targeting sleep disorders can significantly lessen the burden of the disrupted sleep in patients with treatment resistant schizophrenia (TRS) and by proxy lead to a reduction in psychotic symptoms and improvement in quality of life. We are including treatment-resistant patients with schizophrenia other nonorganic and chronic psychoses and in addition meeting the criteria of a sleep or circadian disorder. Included patients will be block randomized to either 8-10 sessions of CBT-I (active treatment) with a specific focus on sleep or 8-10 sessions of regularCBT with a specific focus on patients' psychopathology (treatment as usual) approx.1 session/week. After 12 weeks the full battery of assessments will be repeated forboth groups. Primary analyses will be to identify group-difference in changes using repeated measure ANOVA.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
11mo left

Started Nov 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress60%
Nov 2024Apr 2027

Study Start

First participant enrolled

November 28, 2024

Completed
14 days until next milestone

First Submitted

Initial submission to the registry

December 12, 2024

Completed
15 days until next milestone

First Posted

Study publicly available on registry

December 27, 2024

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2026

Expected
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2027

Last Updated

January 20, 2026

Status Verified

August 1, 2025

Enrollment Period

1.6 years

First QC Date

December 12, 2024

Last Update Submit

January 16, 2026

Conditions

Keywords

CognitiveCBTTherapyInsomniapolysomnography

Outcome Measures

Primary Outcomes (1)

  • Insomnia severity index

    Patient-entered questionnaire measuring sleep difficulties. Seven items. Range of score 0-28. Higher scores indicate more severe insomnia.

    Baseline, after 12-weeks and 24-weeks.

Secondary Outcomes (10)

  • Positive and negative syndrome scale (PANSS)

    Baseline, after 12-weeks and 24-weeks.

  • WHO well being index

    Baseline, after 12-weeks and 24-weeks.

  • Global Assessment of Functioning (GAF)

    Baseline, after 12-weeks and 24-weeks.

  • Functioning Assessment Short Test (FAST)

    Baseline, after 12-weeks and 24-weeks.

  • Personal and Social Performance scale

    Baseline, after 12-weeks and 24-weeks.

  • +5 more secondary outcomes

Study Arms (2)

Cognitive Behavioral Therapy for insomnia

EXPERIMENTAL

8-10 sessions CBT-I tailored for insomnia symptoms

Other: CBT-I

Cognitive Behavioral Therapy

ACTIVE COMPARATOR

8-10 sessions CBT tailored for general psychopathology

Other: CBT

Interventions

CBT-IOTHER

Cognitive therapy tailored for insomnia symptoms.

Also known as: Cognitive behavioral therapy for insomnia
Cognitive Behavioral Therapy for insomnia
CBTOTHER

Cognitive behavioral therapy for general psychopathology

Also known as: Cognitive behavioral therapy
Cognitive Behavioral Therapy

Eligibility Criteria

Age18 Years - 64 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Diagnosed with ICD-10 schizophrenia (DF20), chronic paranoid psychosis (DF22), schizo-affective disorder (DF25) or other non-organic psychosis (DF28-DF29)
  • Treatment resistance according to TRRIP criteria
  • Sleeping difficulties (minimum duration 3 months)
  • ISI score \>14
  • Stable psychopharmacological treatment the last month
  • Only legal competent patient can participant

You may not qualify if:

  • Psychiatric admission last six months (more than 1 week or resulted in significant changes in psychopharmacological treatment)
  • Substance abuse to a degree that will interfere with participation.
  • Diagnoses of sleep apnea/CPAP use

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mental Health Centre Glostrup

Glostrup, Denmark, Denmark

RECRUITING

Related Publications (5)

  • Freeman D, Waite F, Startup H, Myers E, Lister R, McInerney J, Harvey AG, Geddes J, Zaiwalla Z, Luengo-Fernandez R, Foster R, Clifton L, Yu LM. Efficacy of cognitive behavioural therapy for sleep improvement in patients with persistent delusions and hallucinations (BEST): a prospective, assessor-blind, randomised controlled pilot trial. Lancet Psychiatry. 2015 Nov;2(11):975-83. doi: 10.1016/S2215-0366(15)00314-4. Epub 2015 Sep 9.

    PMID: 26363701BACKGROUND
  • Kaskie RE, Graziano B, Ferrarelli F. Schizophrenia and sleep disorders: links, risks, and management challenges. Nat Sci Sleep. 2017 Sep 21;9:227-239. doi: 10.2147/NSS.S121076. eCollection 2017.

    PMID: 29033618BACKGROUND
  • Nucifora FC Jr, Woznica E, Lee BJ, Cascella N, Sawa A. Treatment resistant schizophrenia: Clinical, biological, and therapeutic perspectives. Neurobiol Dis. 2019 Nov;131:104257. doi: 10.1016/j.nbd.2018.08.016. Epub 2018 Aug 29.

    PMID: 30170114BACKGROUND
  • Reeve S, Sheaves B, Freeman D. Sleep Disorders in Early Psychosis: Incidence, Severity, and Association With Clinical Symptoms. Schizophr Bull. 2019 Mar 7;45(2):287-295. doi: 10.1093/schbul/sby129.

    PMID: 30202909BACKGROUND
  • Robertson I, Cheung A, Fan X. Insomnia in patients with schizophrenia: current understanding and treatment options. Prog Neuropsychopharmacol Biol Psychiatry. 2019 Jun 8;92:235-242. doi: 10.1016/j.pnpbp.2019.01.016. Epub 2019 Jan 29.

    PMID: 30707986BACKGROUND

MeSH Terms

Conditions

Schizophrenia, Treatment-ResistantSleep Initiation and Maintenance Disorders

Interventions

Cognitive Behavioral Therapy

Condition Hierarchy (Ancestors)

SchizophreniaSchizophrenia Spectrum and Other Psychotic DisordersMental DisordersSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Intervention Hierarchy (Ancestors)

Behavior TherapyPsychotherapyBehavioral Disciplines and Activities

Study Officials

  • Jimmi Nielsen, MD

    Psykiatrisk Center Glostrup

    STUDY DIRECTOR

Central Study Contacts

Jeppe F Johansen (investigator), Psychologist

CONTACT

Jimmi Nielsen, (Sponsor), MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Sleep laboratory employees
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

December 12, 2024

First Posted

December 27, 2024

Study Start

November 28, 2024

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

April 30, 2027

Last Updated

January 20, 2026

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations