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Evaluation of the Effect of tDCS on Cannabis Craving

Només els usuaris registrats poden traduir articles
Inicieu sessió / registreu-vos
L'enllaç es desa al porta-retalls
EstatReclutament
Patrocinadors
Januel

Paraules clau

Resum

Cannabis is the most frequently consumed drug in France and its use continues to increase. Over the 18-64 age group as a whole, experimentation with cannabis at least once in a lifetime increased from 33% in 2010 to 42% in 2014, confirming the upward trend observed since the 1990.
Cannabis, like all drugs, disrupts the reward circuit whose neurons originate in the ventral tegmental area and project into the mesolimbic and cortical structures.
Acute cannabis use is thought to increase mesolimbic dopamine by affecting the Gabaergic or Glutamatergic system.
Chronic cannabis use usurps the reward system and leads to changes in the mesolimbic circuit (nucleus accumbens, ventral tegmental area, amygdala, and prefrontal cortex), inducing increased craving, with persistent craving for the substance and vulnerability to relapse.
Cognitively, addiction is associated with increased impulsivity, with a propensity to take risks leading to impaired decision-making.
There is currently no validated drug treatment for cannabis addiction. Non-invasive brain stimulation could be an interesting therapeutic alternative.

Dates

Darrera verificació: 04/30/2020
Primer enviat: 04/26/2020
Inscripció estimada enviada: 05/12/2020
Publicat per primera vegada: 05/14/2020
Última actualització enviada: 05/12/2020
Publicació de l'última actualització: 05/14/2020
Data d'inici de l'estudi real: 09/16/2018
Data estimada de finalització primària: 07/16/2021
Data estimada de finalització de l’estudi: 12/16/2021

Condició o malaltia

Addiction to Cannabis

Intervenció / tractament

Other: Neuromodulation by tDCS

Fase

-

Grups de braços

BraçIntervenció / tractament
Experimental: tDCS active arm
Placebo Comparator: tDCS placebo

Criteris d'elegibilitat

Edats elegibles per estudiar 18 Years Per a 18 Years
Sexes elegibles per estudiarAll
Accepta voluntaris saludables
Criteris

Inclusion Criteria:

1. Men or women between 18 and 65 years of age

2. Right-Handers

3. Diagnosis: Cannabis Use Disorder (according to DSM 5 criteria)

4. Patient with no other drug or psychotherapeutic treatment for cannabis addiction ("naive" patients)

5. Reported use of cannabis more than three times a week in the past three years

6. Signing consent to participate in research

Exclusion Criteria:

1. Pregnancy or lack of effective contraception

2. Patients with severe somatic disease

3. Other addictions of "moderate" to "severe" intensity according to DSM 5 criteria (excluding tobacco and coffee)

4. Patients undergoing antidepressant or neuroleptic or thyroid-regulating therapy.

5. Contraindications to tDCS (presence of an intracranial metal body, intracranial hypertension)

6. Topic that has already been stimulated by tDCS

7. Patients under reinforced guardianship or curatorship

Resultat

Mesures de resultats primaris

1. Evaluating the change from craving to cannabis. by an analog visual scale .Scores (0 to 10) [3 months]

Mesures de resultats secundaris

1. The change to cannabis craving assessed by the Baseline Marijuana Craving Test at the end of treatment [3 month]

2. The change in cannabis craving during an incentive to use task evaluated by analog visual scale scores (0 to 10) [3 months]

3. Montgomery-Åsberg depression rating scale) Scores (0 to 60) [3 months]

4. evaluation of the change in the number of joints consumed per day [3 months]

5. evaluation of the change in the number of cigarettes consumed per day [3 months]

6. assessment of the change in attention and inhibition skills as assessed by the Stroop test before and after a neurofeedback test [3 months]

7. the Gambling Task's assessment of decreased risk-taking [3 months]

8. Young Mania Rating Scale Scores (0 to 60) [3 months]

9. Beck Depression Inventory Scores (0 to 39) [3 months]

10. Clinical Global Impression Severity of disease (0 to 7) [3 months]

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