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Moncentric pilot study conducted in the addictology department of the Pau Hospital, designed to demonstrate the benefit of protein supplementation on craving in patients with a substance use disorder at the start of their treatment for addiction.
This study will be conducted according a crossover design with a one-week phase with protein supplementation (P) and a one-week phase without protein supplementation (SP).
Addiction is a chronic psychiatric disorder characterised by the loss of control over the use of rewarding substances or behaviours, despite the accumulated damage. Craving, defined as an irrepressible, obsessive craving, is a key early symptom of addiction. Protein supplementation could reduce this craving. Nutritional abnormalities aggravate addictions but no study have directly assessed the impact of protein supplementation on craving. Evidence suggests that protein supplementation reduces cravings for sugary and hyperpalatable foods, which could extend to rewarding substances. The hypothesis is that this supplementation reduces the intensity, duration and frequency of craving in withdrawal patients by influencing dopaminergic reward circuits.
Protein supplementation takes the form of a powder sachet mixed with yoghurt or compote. It will be given twice a day, at the same time (8am and 4pm).
Patients will be enrolled at the admission to the addiction unit. They will be assessed psychologically, addictologically and nutritionally for one week and then will be randomised. Patients will be asked to assess their cravings, dietary needs, consumption of addictive substances and palatable foods.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| P - SP | Other | 1 week with protein supplementation (P) then one week without protein supplementation (SP) |
|
| SP - P | Other | 1 week without protein supplementation (SP) then one week with protein supplementation (P) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| protein supplementation | Dietary Supplement | Protein supplementation takes the form of a powder sachet mixed with yoghurt or compote. It will be given twice a day, at the same time. |
| Measure | Description | Time Frame |
|---|---|---|
| Evolution of craving for the main substance | Evaluation of the evolution of craving for the main substance in patients with a substance use disorder in association with protein supplementation. It will be a self-assessment by the patient, using a visual analogue craving scale ranging from 1 'no craving' to 7 'extreme craving'. | This outcome will be assessed twice a day (morning and afternoon) from day 8 to day 21, during the period with and without protein supplementation. |
| Measure | Description | Time Frame |
|---|---|---|
| Food craving evolution | Food craving will be assessed by patient self-assessment using a visual analogue craving scale ranging from 1 'no craving' to 7 'extreme craving'. | This outcome will be assessed twice a day (morning and evening) from Day 8 to Day 21 during the period with and without protein supplementation. |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| CH de Pau | Pau | 64000 | France |
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| ID | Term |
|---|---|
| D016739 | Behavior, Addictive |
| ID | Term |
|---|---|
| D003192 | Compulsive Behavior |
| D007175 | Impulsive Behavior |
| D001519 | Behavior |
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| Consumption of hyperpalatable foods |
Consumption of hyperpalatable foods will be assessed by patient self-evaluation, twice a day from D8 to D21 during the period with and without protein supplementation, using a visual scale assessing the extent to which the patient consumed hyperpalatable foods outside of meals, this scale ranging from 1 'not at all' to 7 'very much'. |
| This outcome will be assessed every day from Day 8 to Day 21 during the period with and without protein supplementation. |
| Influence of the severity of addiction | Influence of the severity of addiction measured using the Addiction Severity Index (ASI) questionnaire | Evaluation at the inclusion |
| Influence of psychiatric comorbidities | Influence of psychiatric comorbidities (mood disorders and anxiety disorders) assessed using the MINI (Mini International Neuropsychiatric Interview) | Evaluation at the inclusion |