DNA-based Dietary Advice for Adults With Depressive Disorders
An Investigation of DNA-based Dietary Advice and Its Effects on Changing Health Behaviours in Adults With Depressive Disorders: A Mixed Methods Study to Evaluate Efficacy and Participant Experiences
1 other identifier
interventional
42
1 country
1
Brief Summary
To evaluate the feasibility of nutrigenomics as an intervention for mental health conditions, a phase I randomized controlled trial of 42 adults (19 to 50 years) with depressive disorders using a 2:1 ratio of group selection (28 in the intervention {I} group and 14 in the control {C} group) is proposed. Participants with a confirmed depressive disorder will be recruited from two local mental health clinics. Those randomized into the I group will do the gene testing and be provided personalized DNA-based dietary advice from a registered dietitian; those in the C group will also receive testing but be given general dietary advice by a registered dietitian. Pre- and post-intervention comparisons (3 and 6 weeks after a personalized nutrition plan is given) will be analyzed based on records of dietary intakes (i.e., 3 day food records and food frequency questionnaire) and psychiatric functioning (e.g., Quick Inventory of Depressive Symptomology, Hospital Anxiety and Depression Scale, Outcome Questionnaire - OQ-45). In addition, measures that track physical activity, sedentary behavior, and sleep quality as well as sociodemographics will be included as covariates. After the intervention study is completed, in-depth focus group interviews will be conducted. Participants will be asked questions that will elicit their perceptions of the nutrigenomics test and the personalized dietary advice provided as well as the behavioural response to disclosure of genetic information.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable depression
Started Sep 2017
Shorter than P25 for not_applicable depression
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 19, 2017
CompletedFirst Submitted
Initial submission to the registry
September 20, 2017
CompletedFirst Posted
Study publicly available on registry
October 16, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 31, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
June 30, 2018
CompletedOctober 16, 2017
October 1, 2017
4 months
September 20, 2017
October 13, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Outcome Questionnaire-45
Measures symptom distress (depression and anxiety), interpersonal relationships, Social Role (difficulties in the workplace, school or home duties)
3 months
Secondary Outcomes (4)
Changes in healthy eating index scores
3 months
General self-efficacy scale
3 months
Quick Inventory of Depressive Symptomology
3 months
Hospital Anxiety and Depression Scale
3 months
Study Arms (2)
Personalized Nutrition
EXPERIMENTALParticipant receives gene test results with diet plan (personalized nutrition)
Gene Test Report Only
PLACEBO COMPARATORParticipant receives standard diet plan
Interventions
Diet plan based on nutrition-related gene test results
Eligibility Criteria
You may qualify if:
- Male or female subjects who are living in the community and 19 years of age or older.
- Mild to moderate depression as measured by the Quick Inventory of Depressive Symptomology (QIDS10).
- A level of understanding sufficient to perform all tests and examinations required by the protocol.
You may not qualify if:
- Investigators and their immediate families. Immediate family is defined as a spouse, parent, child or sibling, whether biological or legally adopted.
- Current or lifetime diagnosis of any of the following according to DSM-IV or DSM-5 criteria: Schizophrenia Spectrum and Other Psychotic Disorders, Schizophrenia, Schizophreniform Disorder, Schizoaffective Disorder, Delusional Disorder, Psychotic Disorder Not Otherwise Specified, Delirium of any type, Dementia of any type, Amnestic Disorder, any Substance-Induced Disorder, or any Psychotic Disorder due to a General Medical Condition.
- Alcohol or drug dependence during the previous 12 months. Participants must have consumed less than 10 alcoholic beverages per week in the previous 4 weeks and had no use of marijuana and other illicit drugs. At each visit, participants will be asked for an estimate of their use of each of these substances, and these amounts will be recorded for possible later statistical analysis.
- Hospitalization for treatment of a mental health condition within the previous 6 months.
- Serious, unstable illnesses such that death is anticipated within 1 year or intensive care unit hospitalization for the disease is anticipated within 6 months. This includes hepatic, renal, gastroenterologic, respiratory, cardiovascular (including ischemic heart disease), endocrinologic, neurologic, immunologic, or hematologic diseases (specifically current agranulocytosis with an absolute neutrophil count \<500 mm3).
- Indication of treatment resistance (e.g., has been given more than 3 treatments for depression).
- Not taking any atypical antipsychotics or anti-depressants that have an appetite stimulating effect (e.g., Mirtazapine)
- Uncorrected hypothyroidism or hyperthyroidism in the previous 12 months.
- Diagnosed Inflammatory Bowel Syndrome, or any other chronic gastrointestinal problem.
- Treatment with electroconvulsive therapy (ECT) within previous 6 months.
- Patients will be excluded temporarily if they have taken an oral antibiotic in the previous 6 weeks. If an antibiotic is begun during the course of the trial, that patient will be withdrawn from the study.
- Taking any type of nutritional or herbal supplement, including melatonin, known to have a centrally-acting effect. However, participants who have been taking supplements such as Echinacea, chondroitin, or glucosamine may enter the study if a) they have been taking these agents for at least one month prior to the study, and b) they continue on these agents throughout the study. Supplement information will be presented at intake, and the cessation of any such supplements will be required for the participant to continue in screening.
- Women who are pregnant or breast-feeding; women of childbearing potential who are not using a medically accepted means of contraception when engaging in sexual intercourse (for example, intrauterine device, oral contraceptive, implant, Depo-Provera, or barrier devices with spermicide). Women who become pregnant during the trial will be withdrawn.
- Any person judged clinically to be at serious risk for suicide or violence.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Karen Davisonlead
Study Sites (1)
Innovation Boulevard
Surrey, British Columbia, Canada
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Karen M Davison, PhD
Kwantlen Polytechnic University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
September 20, 2017
First Posted
October 16, 2017
Study Start
September 19, 2017
Primary Completion
January 31, 2018
Study Completion
June 30, 2018
Last Updated
October 16, 2017
Record last verified: 2017-10
Data Sharing
- IPD Sharing
- Will not share