Parent-Adolescent Relationships, Emotional Regulation, and HRV in Adolescents With Depression

This cross-sectional study examines associations among heart rate variability (HRV), emotional dysregulation, and parent-adolescent relationship quality in adolescents with Major Depressive Disorder (MDD). We hypothesize that lower HRV will be linked to greater emotional dysregulation and that more supportive parent-adolescent relationships will correlate with higher HRV. Participants will wear a Fitbit Charge 5 during nighttime sleep for 7 consecutive nights and complete validated measures of emotional regulation and relationship quality.

NCT Number	NCT07430774
Lead Sponsor	University of Texas Southwestern Medical Center
Conditions	Emotional Dysregulation, HRV, Adolescent, Family Relationship, Depression
Enrollment	74 participants
Start Date	2026-07-01
Primary Completion	2027-04-01 (estimated)
Study Completion	2027-05-01 (estimated)
Updated on ClinicalTrials.gov	2026-05-06