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NCT Number: NCT05976178

Study of the Characteristics of Chronic Pain in Patients With Addiction

It is described in the literature a higher prevalence of pain in patients with an addiction but there are few studies describing the pain profile of patients with use disorder.

Pain has a very negative impact on the quality of life of opioid substituted patients. Improving knowledge on this point would make it possible to better guide specific care.

The investigator proposes to conduct a single-center descriptive observational study using questionnaires, without changing the management of patients with chronic pain.

The primary objective of the study is to determine the prevalence of chronic pain in patients with substance addiction hospitalized for addiction treatment.

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Key information

Conditions

Chronic Pain Addiction Behavior Behavior, Addictive Compulsive Behavior Impulsive Behavior Neurologic Manifestations Pain Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Groupe Hospitalier Bretagne Sud

Lorient, 56100, France

About this study

It is described in the literature a higher prevalence of pain in patients with an addiction but there are few studies describing the pain profile of patients with use disorder.

Pain has a very negative impact on the quality of life of opioid substituted patients. Improving knowledge on this point would make it possible to better guide specific care.

The investigator proposes to conduct a single-center descriptive observational study using questionnaires, without changing the management of patients with chronic pain. All patients admitted to hospitalization in the addiction department of the LORIENT Hospital will be offered participation in the study.

The primary objective of the study is to determine the prevalence of chronic pain in patients with substance addiction hospitalized for addiction treatment.

The study will also evaluate the impact on daily activities of the presence of two chronic pathologies: chronic pain and addiction, describe the frequency of the two main psychiatric comorbidities of chronic pain: anxiety and depression, describe the different components of chronic pain in patients with substance addiction, and get information on analgesic medications.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • > 18 years old
  • Presence of addiction to at least one substance, based on DSM-5 criteria
  • Hospitalized in the addiction service of LORIENT Hospital
  • Knowing how to read and write French
  • Not objecting to their participation in the study after informed information

Exclusion criteria

  • Already included during a precedent hospitalization
  • Adults subject to legal protection or deprived of their liberty.

Treatment and study plan

Primary outcomes

  1. Prevalence of chronic pain in patients with substance addiction hospitalized for addiction treatment.

    Time frame: During the hospitalization, maximum 1 month

    Percentage of patients presenting with pain for more than three months among patients hospitalized in an addiction service for the management of an addiction

Secondary outcomes

  1. Pain intensity in the last 24 hours

    Time frame: During the hospitalization, maximum 1 month

    Results of the Brief Pain Inventory : worst and least of pain in the last 24 hours

  2. Interference of pain on the quality of life

    Time frame: During the hospitalization, maximum 1 month

    Result of Brief pain inventory on general activity, mood, walking ability, normal work, relations with other people, sleep, enjoyment of life. On a scale from 0 (does not interfere) to 10 (completely interferes)

  3. Localisation of pain

    Time frame: During the hospitalization, maximum 1 month

    Drawing on a diagram of a human body

  4. Describe the frequency of the two main psychiatric comorbidities of chronic pain: anxiety

    Time frame: During the hospitalization, maximum 1 month

    Results of the anxiety scale of Hospital Anxiety and Depression scale. Positive if > 8. Minimum 0, maximum 21

  5. Describe the frequency of the two main psychiatric comorbidities of chronic pain: depression

    Time frame: During the hospitalization, maximum 1 month

    Results of the depression scale of Hospital Anxiety and Depression scale. Positive if > 8. Minimum 0, maximum 21

  6. Describe the prevalence of fibromyalgia among patients with substance addiction

    Time frame: During the hospitalization, maximum 1 month

    Results of the Fibromyalgia Rapid Screening Tool. Suspicion of fibromyalgia if >5 yes. Maximum 6 yes

  7. Information on analgesics medication

    Time frame: During the hospitalization, maximum 1 month

    Collection of current analgesic medication taken every day

  8. Describe the prevalence of neuropathic pain among patients with substance addiction

    Time frame: During the hospitalization, maximum 1 month

    Results of the DN3 (neuropathic pain 3). Suspicion of neuropathic pain when > 3/7

Sponsors and collaborators

Lead sponsor

Groupe Hospitalier de Bretagne Sud

Other

Registry information

Official study title

Descriptive, Prospective Study of the Characteristics of Chronic Pain in Patients With Addiction to at Least One Substance

Acronym: ADDICTALGO

Important dates

Study start
2022
Primary completion
2025
Study completion
2025
First posted
Aug 4, 2023
Registry last updated
May 11, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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