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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03336125
Other study ID # 983 974 724
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date November 17, 2017
Est. completion date May 22, 2018

Study information

Verified date June 2019
Source University of Bergen
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of the project is to investigate whether an intervention program with vitamin D supplementation is able to improve the biology of stress resilience as well as subjective well-being in individuals with antisocial behavior problems (forensic inpatients).


Description:

This is a randomized control trial looking at the effects of vitamin D supplements on mental health in a group of forensic inpatients. More specific the effects of vitamin D will be investigated in relation to underlying biological mechanisms associated with resilience (e.g., serotonin, cortisol, heart rate variability and executive functioning), but also subjective well-being such as sleep quality, anxiety, depression, self-reported resilience and physical activity. About 100 participants will be randomized to an intervention group (vitamin D) or a control group (placebo). The intervention will last for 3-4 months. Pre-test will start in October/November 2017 and post-test in April/May 2018.


Recruitment information / eligibility

Status Completed
Enrollment 86
Est. completion date May 22, 2018
Est. primary completion date May 22, 2018
Accepts healthy volunteers No
Gender Male
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Patients with intelligence quotient > 70 will be invited.

Exclusion Criteria:

- Patients with intelligence quotient <70 will be excluded.

- Patients already taking vitamin D.

- Patients with psychotic disorders.

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Vitamin D
Vitamin D (40µg/day) will be compared with placebo
Placebo
120 mg olive oil

Locations

Country Name City State
United States Sand Ridge Secure Treatment Center Mauston Wisconsin

Sponsors (4)

Lead Sponsor Collaborator
University of Bergen Haukeland University Hospital, National Institute of Nutrition and Seafood Research, Norway, Wisconsin Department of Health and Family Services

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Other Childhood Trauma Questionnaire About 10 minutes (only at pre-test)
Other Iodine (test 1) Urin About 2-3 minutes
Other Iodine (test 2) Urin About 2-3 minutes
Primary Change in vitamin D level in blood from pre-test (baseline) to post-test (after 4 months) Measured from blood sample Time for blood sample: about 10-15 minutes (at both pre and post test)
Primary Change in serotonin from pre-test (baseline) to post-test (after 4 months) Measured form blood sample Time for blood sample: about 10-15 minutes (at both pre and post test)
Primary Change in total cholesterol from pre-test (baseline) to post-test (after 4 months) Measured from blood sample Time for blood sample: about 10-15 minutes (at both pre and post test)
Primary Change in lipoproteins from pre-test (baseline) to post-test (after 4 months) Measured from blood sample Time for blood sample: about 10-15 minutes (at both pre and post test)
Primary Change in triglycerides from pre-test (baseline) to post-test (after 4 months) Measured from blood sample Time for blood sample: about 10-15 minutes (at both pre and post-test)
Primary Change in cortisol from pre-test (baseline) to post-test (after 4 months) Saliva 7 samples over 24 hours (at both pre and post-test)
Primary Change in performance on working memory tasks (N-back) from pre-test (baseline) to post-test (after 4 months) Computerized cognitive task About 8-10 minutes (at both pre and post-test)
Primary Change in performance on Tower of Hanoi Task from pre-test (baseline) to post-test (after 4 months) Computerized cognitive task About 10-15 minutes (at bot pre and post-test)
Primary Change in performance on Tower of London Task from pre-test (baseline) to post-test (after 4 months) Computerized cognitive task About 10-15 minutes (at both pre and post test)
Primary Change in performance on Iowa Gambling Task from pre-test (baseline) to post-test (after 4 months) Computerized cognitive task About 15-20 minutes (at both pre and post test)
Primary Change in heart rate variability from pre-test (baseline) to post-test (after 4 months) 5 minutes of baseline, during the cognitive testing (up to 60 minutes) and 5 minutes of recovery (at both pre and post test)
Secondary Change in sleep from pre-test (baseline) to post-test (after 4 months) Measured by Ambulatory Monitoring System together with a sleep log One week before intervention and one week after intervention (i.e., pre and post-test)
Secondary Change on Epworth Sleepiness Scale from pre-test (baseline) to post-test (after 4 months) About 5-10 minutes (at both pre and post-test)
Secondary Houston Non-Exercise Questionnaire The log consists of weekly recording of various activity levels. The physical activity log will be filled out weekly over the course of the study period (i.e., 24 -28 weeks) and estimated time per week is 10 minutes.
Secondary Change in self-reported state and trait anxiety (STAI questionnaire) from pre-test (baseline) to post-test (after 4 months) About 10 minutes (at both pre and post-test)
Secondary Change in self-reported resilience (Connor-Davidson Resilience Scale 25) from pre-test (baseline) to post-test (after 4 months) About 5 minutes (at both pre and post-test)
Secondary Change in post-traumatic stress symptoms (Impact of event scale -Revised) from pre-test (baseline) to post-test (after 4 months) About 5-10 minutes (at both pre and post-test)
Secondary Change in self-reported depression (Beck Depression Inventory) from pre-test (baseline) to post-test (after 4 months) About 5-10 minutes (at both pre and post-test)
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