Healthy Lifestyles in Bipolar Disorder: Bay Area Study

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorUniversity of California, Berkeley

About this trial

The goal of this clinical trial is to understand how level of adherence with time-restricted eating (TRE) predicts change in diurnal rhythms (as measured using the amplitude of diurnal peripheral clock gene expression), and how those changes predict lower mania and depressive symptoms, and downstream improvements in quality of life. The effects of diurnal amplitude of clock gene expression is expected to remain significant when controlling for change in glucose tolerance and inflammation. Participants will be enrolled who are already receiving medication treatment for bipolar disorder. Participants will complete daily measures of eating, sleep and mood for two weeks, and then will be assigned to follow TRE for eight weeks. Symptoms and Quality of Life will be measured at baseline and during and after the food plan.

Eligibility criteria

Qualifiers

Meets diagnostic criteria for bipolar I disorder or bipolar II disorder (but not cyclothymia, bipolar disorder Not otherwise specified or bipolar disorder due to another medical condition) assessed by the Diagnostic Interview for Anxiety, Mood, and Obsessive-compulsive and Related Neuropsychiatric Disorders [DIAMOND])

current sleep (insomnia, hypersomnolence) or circadian sleep-wake (delayed phase, advanced phase, irregular sleep-wake, non-24-hour sleep-wake-type) concerns indicated by endorsement of at least some sleep or circadian-related impairment across the screening self-reports or interview

Living in an English-speaking country (and one that the researchers have expertise in research procedures and diet)

Has been speaking English for at least 10 years, speaks English in the home, or certifies that they are able to understand English well for the study and demonstrates this during the screening interview.

Disqualifiers

Current episode of depression, hypomania or mania, or psychosis (assessed by the DIAMOND), Participants with acute mood disorder episodes will be encouraged to seek treatment and to consider the study when symptoms have remitted.

Eating disorder diagnosis (by self-report of treatment or diagnosis at any point during their life, Short Eating Disorder Examination Questionnaire (EDE-QS) scores above clinical concern thresholds for eating disorders, or DIAMOND interview of symptoms during adulthood)

Past 3-month alcohol use disorder or substance use disorder (assessed by DIAMOND)

Active suicidal ideation coupled with plan, intent or attempt history as assessed by Columbia Suicide Severity Rating Scale

Trial design

Treatments tested in this trial

  • Time-restricted eating for 8 weeks

Treatment groups

150 Participants
are divided into 1 treatment group

Sponsors and collaborators

University of California, Berkeley

Lead sponsor

Salk Institute for Biological Studies

Collaborator

University College, London

Collaborator

Swinburne University of Technology

Collaborator

Deakin University

Collaborator

University of British Columbia

Collaborator

Wellcome Trust

Collaborator