Clinical Research Directory

The Impact of Equine-Assisted Therapy on Mental Health and Addictive Behaviors in Patients Receiving Addiction Treatment

Sponsor: Hopital La Musse

Summary

Addiction is a major public health issue. According to the World Health Organization (2024), approximately 400 million people worldwide suffer from alcohol- or drug-related disorders, resulting in nearly 3.2 million deaths per year. In France, the situation is also cause for concern: approximately three million people engage in risky alcohol consumption, thirteen million smoke daily, and nearly one and a half million use illicit drugs, primarily cannabis. Addiction, defined by the National Institute on Drug Abuse (NIDA) as a chronic, relapsing brain disorder, is characterized by the compulsive pursuit and use of a substance despite knowledge of its harmful effects. Its development depends on multiple factors: personal (trauma, psychiatric disorders, genetic predispositions), environmental (stress, isolation, family context), and those related to the substance itself (addictive potential). The diagnosis of substance use disorders is based on 11 criteria defined in the \*Diagnostic and Statistical Manual of Mental Disorders\* (DSM-5), the main ones being: loss of self-control, interference of substance use with academic or occupational activities, continued use despite awareness of the problems it causes, and a new central criterion, craving, defined as an irresistible urge to use, which serves as both a symptom and a diagnostic and prognostic marker because it is a predictor of relapse. The cumulative total of criteria allows the disorder to be classified as mild (2-3), moderate (4-5), or severe (≤ 6). Since the 2020 health crisis, researchers have observed an increase in the use of psychoactive substances, particularly among vulnerable populations. Despite public policy efforts and treatment programs, relapses remain common after treatment, affecting 60 to 70% of patients within six months of their hospitalization. This phenomenon is also observed at La Musse Hospital, where many patients admitted to the nutrition and alcoholism unit express a sense of emptiness upon returning home: a void in relationships, therapy, and daily activities. This feeling often contributes to a return to substance use. To address these relapses, this study aims to evaluate the impact of a post-hospitalization equine-assisted therapy program on the mental health and addictive behaviors of patients receiving addiction treatment. Already used at La Musse Hospital as part of the care pathway, equine-assisted therapy is based on the interaction between the patient and the horse in a therapeutic setting. Several studies have demonstrated the benefits of this approach on emotional regulation, self-confidence, stress management, and overall well-being. This prospective, single-center, interventional study will include twenty-two patients who have been hospitalized at least once in the nutrition and alcoholism unit at La Musse Hospital or another facility. Participants will be randomly assigned to either a group receiving post-hospitalization equine-assisted therapy or a control group.

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