Recruiting

Opioid Registry

Sponsor:

University of British Columbia

Code:

NCT07466784

Conditions

Opioid Use Disorder

Opioid Abuse or Dependence

Opioid Withdrawal

Polysubstance Drug Use (Indiscriminate Drug Use)

Polysubstance Abuse

Eligibility Criteria

Sex: All

Age: 0+

Healthy Volunteers: Not accepted

Study Details

Brief summary:

Unregulated opioids remain a leading driver of preventable mortality and potential years of life lost in Canada. Emergency departments (EDs)-open 24/7 and frequently accessed by people who use drugs-offer critical opportunities to reverse toxicity, mitigate harm, and initiate treatment. Yet, high quality evidence to guide ED care for patients with opioid poisoning and concomitant opioid dependence or opioid use disorder is limited. The investigators aim to establish a pan Canadian registry of patients presenting to EDs with opioid poisoning to generate timely, practice informing evidence. The investigators will create the Canadian Emergency Department Research Network (CEDRN) Opioid Registry across participating EDs nationwide. Using automated screening of electronic health records (EHRs), the investigators will identify consecutive patients of all ages with suspected or confirmed opioid poisoning at their index ED visit. The project's objectives are to establish a pan-Canadian registry of Emergency Department patients presenting with opioid poisoning, harmonize data collection across participating sites, describe variations in patient characteristics, clinical practice and outcomes, and derive a clinical decision rule to predict the risk of dying within 60 days. The expected outcomes include advancing healthcare delivery, improving patient and provider experiences, and enhancing population health and health system sustainability for individuals with opioid poisoning. This research is crucial for addressing the opioid crisis in Canada and has the potential to significantly impact patient care and outcomes.

Conditions

Opioid Use Disorder

Opioid Abuse or Dependence

Opioid Withdrawal

Polysubstance Drug Use (Indiscriminate Drug Use)

Polysubstance Abuse

Study ID

NCT07466784

Start date

Jul 24, 2025

Status verified date

Mar, 2026

Completion date

Dec 31, 2030

Anticipated

Primary completion date

Jul 24, 2030

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 0+

Healthy Volunteers: Not accepted

Inclusion Criteria:

1. All patients who arrive at the emergency department with the following emergency department discharge diagnosis:

  • Percocet Overdose
  • Oxycontin Overdose
  • Oxycodone Overdose
  • Opioid Overdose or Intoxication
  • Methadone Overdose
  • Heroin Overdose
  • Fentanyl Overdose
  • Codeine Overdose
  • Carfentanil Overdose
  • Opioid Withdrawal
2. All patients who arrive at the emergency department who had the following medication ordered in the present visit or previous hospital visits in the past 2 years:

  • Buprenorphine
  • Buprenorphine-naloxone
  • Methadone - Past ED or IP encounter
  • Kadian/Morphine long-acting
  • Naloxone
  • Naloxone kit
3. All patients who arrive at the emergency department with the following impatient discharge diagnosis:

  • Opioid use disorder (mild/moderate/severe, abuse/dependence), or opioid-related disorders
  • Adverse effect, and poisoning by polysubstance use
  • Opioid intoxication or withdrawal
  • Intoxication or withdrawal (from any substance, including unspecified ones)
  • Adverse effect, and poisoning by opioids, benzodiazepines, other antiepileptic and sedative-hypnotic drugs, and unspecified drugs
  • Any psychoactive substance abuse resulting in intoxication, withdrawal, or any adverse effects

Study Design

Enrollment

7200 participants

Anticipated

Interventions and Outcome Measures

Primary outcome measure

  • Proportion of patients who received opioid agonist therapy (methadone, buprenorphine/naloxone, extended release buprenorphine injection, slow-release oral morphine). [ Time Frame: From date of emergency department arrival date until they are discharged from the emergency department (usually within the first 72 hours since arrival time). ]

Central Contacts and Locations

Central contacts

Locations

Vancouver General Hospital

Recruiting

Vancouver, British Columbia, Canada, V5Z 1M9

More Information

Sponsor

University of British Columbia

Last update posted

Mar 12, 2026

Last verified

Mar, 2026

Keywords

  • Opioid use disorder
  • Opioid poisoning
  • CEDRN Opioid Registry
  • Opioid dependence
  • polysubstance abuse
  • polysubstance drug use

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by University of British Columbia on 2026-03-12.