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Opioid Overdose clinical trials in New Haven, CT

18 studies for Opioid Overdose are looking for participants at sites in and around New Haven (within about 30 miles). Open a study to see who can join and how to contact the study team.

Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →

Characterization of CB1 Receptors Using [11-C]OMAR in Opioid Use Disorder

RecruitingPhase 1Healthy volunteers welcome
  • Connecticut Mental Health Center, Clinical Neuroscience Research Unit, New Haven
Ages 25 to 65 · All sexes · Updated Oct 2, 2026 · NCT07800520

Adaptive Decision Support for Addiction Treatment (ADAPT) Serial Randomized Testing for Usability, Round 3

Recruiting
  • Yale New Haven Hospital- St. Raphael, New Haven
  • Yale New Haven Hospital, New Haven
  • Yale New Haven Shoreline Medical Center, Guilford · 13 mi away
Ages 18 and older · All sexes · Updated Sep 25, 2026 · NCT07793383

A Clinical Trial of Telehealth Treatment for Opioid Use Disorders

Recruiting
  • Yale University, New Haven
Ages 18 and older · All sexes · Updated Sep 21, 2026 · NCT07362082

A Study Comparing Oral Buprenorphine and Injectable Buprenorphine for the Treatment of Opioid Use Disorder

RecruitingPhase 4
  • CERC (VISN1, West Haven, CT), West Haven · 3 mi away
Ages 18 and older · All sexes · Updated Sep 10, 2026 · NCT04375033

OMAR Opioid Use Disorder

RecruitingPhase 1Healthy volunteers welcome
  • Connecticut Mental Health Center, Clinical Neuroscience Research Unit, New Haven
Ages 18 and older · All sexes · Updated Sep 10, 2026 · NCT05683184

Developing a Smartphone Application to Support Veteran Opioid Use Disorder Treatment

Recruiting
  • VA Connecticut Healthcare System West Haven Campus, West Haven, CT, West Haven · 3 mi away
Ages 18 and older · All sexes · Updated Aug 17, 2026 · NCT06454903

fMRI and Opioid Abstinence

RecruitingObservational study
  • The APT Foundation, New Haven
Ages 18 to 50 · All sexes · Updated Aug 7, 2026 · NCT06651333

Combined THC and CBD for OUD and Chronic Pain

RecruitingPhase 2
  • Connecticut Mental Health Center, New Haven
Ages 18 to 65 · All sexes · Updated Jul 16, 2026 · NCT06544291

Project STRONGER: Stepped Care for Opioid Use Disorder Treatment Engagement and Recovery

Recruiting
  • The APT Foundation, Inc., West Haven · 3 mi away
Ages 18 and older · Women · Updated Jul 16, 2026 · NCT07115030

Exploration of Synaptotrophic Effects of Psilocybin in Opioid Use Disorder (OUD)

RecruitingPhase 1
  • Yale University, New Haven
Ages 25 to 55 · All sexes · Updated Jul 7, 2026 · NCT06160284

Opioid Use Disorder and Pain

RecruitingObservational studyHealthy volunteers welcome
  • Connecticut Mental Health Center, S105, New Haven
Ages 21 to 60 · All sexes · Updated Jun 16, 2026 · NCT06800703

Optimizing Evidence-based HIV Prevention Targeting People Who Inject Drugs on PrEP

RecruitingPhase 4
  • APT Foundation, New Haven
Ages 18 and older · All sexes · Updated Jun 15, 2026 · NCT05669534

Adaptive Decision Support for Addiction Treatment Master

Recruiting
  • Yale New Haven Hospital- St. Raphael, New Haven
  • Yale New Haven Hospital, New Haven
  • Yale New Haven Shoreline Medical Center, Guilford · 13 mi away
Ages 18 and older · All sexes · Updated Jun 11, 2026 · NCT06799117

Integrated e-Health (Electronic Health) for HIV and Substance Use Disorders in Justice Involved Women

RecruitingPhase 4Healthy volunteers welcome
  • Yale University, New Haven
Ages 18 and older · Women · Updated Jun 3, 2026 · NCT05547048

Longitudinal Neural Fingerprinting of Opioid-use Trajectories

Recruiting
  • MRRC at The Anlyan Center, New Haven
Ages 18 to 50 · All sexes · Updated May 27, 2026 · NCT06207162

Imaging Cannabinoid Receptors Using Positron Emission Tomography (PET) Scanning

RecruitingObservational studyHealthy volunteers welcome
  • Connecticut Mental Health Center, Clinical Neuroscience Research Unit, New Haven
Ages 18 to 55 · Men · Updated Apr 27, 2026 · NCT01730781

Cannabidiol in Opioid Use Disorder and Chronic Pain

RecruitingEarly phase 1
  • Department of Veterans Affairs Hospital, West Haven · 3 mi away
Ages 18 to 70 · All sexes · Updated Apr 14, 2026 · NCT04587791

M2VA Pain Care Pathway

Recruiting
  • VA Connecticut Healthcare System (VACHS), West Haven · 3 mi away
Ages 18 and older · All sexes · Updated Nov 5, 2025 · NCT06526143

About Opioid Overdose

Opioid overdose leads to slowing or stopping of breathing and sometimes death. You can take steps to help prevent an overdose, and respond to one with naloxone.

More about Opioid Overdose on MedlinePlus

Opioid Overdose trials in other cities

Other studies in New Haven

From ClinicalTrials.gov, data retrieved Oct 5, 2026. Each study sets its own eligibility; the study team decides who can join.