Rumination-Tailored Guided Internet-Based CBT-I for University Students

The goal of this clinical trial is to evaluate whether adding rumination-tailored, rule-based personalized feedback to guided internet-based cognitive behavioral therapy for insomnia (iCBT-I) improves treatment outcomes in university students with insomnia symptoms. The main questions it aims to answer are: Does rumination-tailored feedback improve insomnia severity compared to standard guided iCBT-I? Does the addition of personalized feedback improve rumination, treatment adherence, and treatment satisfaction compared to standard guided iCBT-I? Researchers will compare three conditions: (1) standard guided iCBT-I, (2) guided iCBT-I with additional rumination-tailored feedback, (3) waitlist control group, to determine whether the enhanced intervention leads to superior clinical and behavioral outcomes. Participants will: complete an online screening and baseline assessment be randomly assigned to one of three study conditions receive either guided iCBT-I, guided iCBT-I with rumination-tailored feedback, or no intervention (waitlist condition) complete a structured internet-based CBT-I program over several weeks (for intervention arms) receive weekly guidance according to group allocation complete post-treatment and follow-up questionnaires assessing sleep, rumination, and treatment experience

NCT Number	NCT07623889
Lead Sponsor	Shahid Beheshti University of Medical Sciences
Conditions	Insomnia, Insomnia Disorder
Enrollment	70 participants
Start Date	2026-07-04
Primary Completion	2026-09 (estimated)
Study Completion	2026-10 (estimated)
Updated on ClinicalTrials.gov	2026-07-14