FruktBAR: Effect of Fruit Smoothie Supplementation on Psychological Distress Among People Receiving Opioid Agonist Therapy
Study Details
Study Description
Brief Summary
Background: People with substance use disorders generally have poor diets including limited intake of fruit and vegetables. Evidence shows substantial health benefits from increasing fruit and vegetable consumption on a variety of indicators and possibly also psychological distress. A pilot study has indicated that supplementation with fruit smoothie could be promising also among people receiving opioid agonist therapy (OAT) for opioid dependence. FruktBAR will compare the efficacy of fruit smoothie supplementation within the OAT clinics compared to standard treatment.
Study design: FruktBAR is a multicentre, randomised controlled trial. The trial will recruit approximately 230 patients receiving OAT in Bergen and Stavanger, Norway.
Intervention: The intervention involves daily supplementation with 250 ml fruit smoothie. The main endpoints are 16 weeks after intervention initiation. Participants will be included and followed up during and after intervention.
Study population: The target group will be patients with opioid dependence receiving OAT from involved outpatient clinics in Bergen and Stavanger.
Expected outcome: This study will inform on the relative advantages or disadvantages of a fruit supplementation in addition to the current medically and psychologically oriented treatment of people receiving opioid agonist therapy. If the supplementation is found to be safe and efficacious, it can be considered for further scale-up.
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Detailed Description
See below each section
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: Fruit smoothie Participants randomised to the intervention arm will receive a 250 ml fruit smoothie as diet supplement for 20 weeks in addition to the regular OAT clinic follow-up. The fruit smoothies will be marketed products including combinations of the following fruits: apple, pineapple, mango, bananas, orange, blueberries, passion fruit, coconut, lime, and blackcurrant. The participants will receive a mixture of different smoothie types with the option of removing alternatives based on preferences. Fruit smoothie products will come in plastic bottles and will be delivered directly to the participants on a weekly basis. Each participant will receive a total of seven smoothie bottles per week with an oral agreement with each participant to consume one of these per day. Delivery of fruit smoothie will generally be given in parallel with delivery of OAT medication. |
Dietary Supplement: Fruit smoothie
Participants randomised to the intervention arm will receive a 250 ml fruit smoothie as diet supplement for 20 weeks in addition to the regular OAT clinic follow-up. The fruit smoothies will be marketed products including combinations of the following fruits: apple, pineapple, mango, bananas, orange, blueberries, passion fruit, coconut, lime, and blackcurrant. The participants will receive a mixture of different smoothie types with the option of removing alternatives based on preferences. Fruit smoothie products will come in plastic bottles and will be delivered directly to the participants on a weekly basis. Each participant will receive a total of seven smoothie bottles per week with an oral agreement with each participant to consume one of these per day. Delivery of fruit smoothie will generally be given in parallel with delivery of OAT medication.
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No Intervention: Standard Participants randomised to standard treatment will receive regular OAT clinic follow-up without added supplementation. |
Outcome Measures
Primary Outcome Measures
- Psychological distress [Mid of the intervention period 16 weeks after initiation]
The primary outcome is psychological distress assessed with the Norwegian validated translation ten item version of Hopkins Symptom Checklist (SCL-10) in the mid of the intervention period 16 weeks after initiation (12-20). This will be evaluated with mean SCL-10 item score and compared between intervention and control arm.
Secondary Outcome Measures
- Biochemical indicator of inflammation [Mid of the intervention period 16 weeks after initiation]
Biochemical indicators of inflammation measured with C-reactive protein in serum
- Biochemical indicators of fruit intake [Mid of the intervention period 16 weeks after initiation]
Biochemical indicators of fruit intake measured with serum carotenoids
- Fatigue Symptom Scale [Mid of the intervention period 16 weeks after initiation]
Changes in fatigue will be assessed with the Fatigue Symptom Scale (FSS-3, scale 0-18, higher values is worse)
- Physical functioning [Mid of the intervention period 16 weeks after initiation]
Physical functioning assessed with 4-minute step-test measuring number of steps climbed in period
- Health-related quality of life [Mid of the intervention period 16 weeks after initiation]
Changes in health-related quality of life will be assessed with EuroQoL EQ-5D-5L (0-100, higher is better)
Eligibility Criteria
Criteria
Inclusion Criteria:
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Receiving OAT from an included outpatient clinic with outpatient follow-up on weekly basis
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Having fruit and vegetable intake below 3 portions per day (assessed at screening)
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Confirming interest in participating in diet intervention (criteria specified)
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Giving informed consent
Exclusion Criteria:
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Allergies or prior anaphylactic reactions involving fruits or vegetables
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Poorly regulated diabetes type 1 or 2 (HbA1c >60 mmol/mol)
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | LAR Helse Stavanger HF | Stavanger | Rogaland | Norway | 4010 |
2 | Department of Addiction Medicine, Haukeland University Hospital | Bergen | Vestland | Norway | 5020 |
Sponsors and Collaborators
- Haukeland University Hospital
- Helse Stavanger HF
- Helse Vest
- University of Bergen
- ProLAR Nett
- University of Oslo
Investigators
- Principal Investigator: Lars Fadnes, PhD, Haukeland University Hospital
Study Documents (Full-Text)
None provided.More Information
Additional Information:
Publications
None provided.- 155386/REK-A