Clinical trial Recruiting at 1 site Observational Ages 18 to 70

Monitoring methadone levels using a wearable device

Official title: Assessment of Methadone Dose Taken

Run by Cari Health Inc. · NCT05981573 · Data updated 2026-11-12

This study is testing a new wearable device that tracks methadone levels in people with chronic pain to see how well it helps monitor their medication use.

Quick facts

Study typeObservational
Ages18 Years to 70 Years
SexAll
Enrollment30 (estimated)
SponsorCari Health Inc.
Academic / other
Locations1 site (Lemon Grove, California)
StatusRecruiting
StartedAugust 26, 2024
Main results expectedMarch 2026
Study endsApril 2026
Registry record updatedFebruary 13, 2025
Trial IDNCT05981573 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18-70 who have a prescription for methadone for chronic pain at a dose of 10mg or more.

Probably not a fit

Patients with conditions that complicate ISF collection or those enrolled in substance use disorder treatment programs may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational pilot study aims to develop a minimally invasive wearable Remote Medication Monitor (RMM) that continuously tracks methadone levels in interstitial fluid. The study will involve up to 20 adult participants who have been prescribed methadone for chronic pain. It will assess the ability of the RMM to provide real-time data on medication adherence and pharmacokinetic profiles through biosample collections over a 6-hour period. The study will be conducted at a single center in the United States and will include two separate visits for data collection.

Why it matters

Potential benefit: If successful, this study could enhance medication adherence monitoring for patients on methadone, potentially reducing the risk of toxicity and overdose.

How similar studies have gone: While this approach is innovative, similar studies have not been widely reported, indicating that this may be a novel exploration in medication monitoring.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 18-70
* A prescription for methadone for chronic pain at a dose of 10mg or more for at least one week.
* Taking methadone as prescribed during the last 4 days before consent to participate in the study.

Exclusion Criteria:

* Age \<18 or \>70
* A condition preventing or complicating ISF collection
* dermatological (skin) condition
* immunodeficiency
* recent blood donation
* anemia
* end stage renal disease
* liver cirrhosis
* cancer
* congestive heart failure
* bleeding diathesis
* tuberculosis (TB)
* Any active severe depression
* suicidal ideation
* mania symptoms
* Pregnancy
* Intending to become pregnant during the course of the study
* Enrolled in a substance use disorder treatment program
* Under a conservatorship.

Where it's running

  • Synergy
    Lemon Grove, California, United States
    Recruiting

Study contacts

  • Principal investigator: Charmaine Semenluk, MD — Synergy Research Inc.
  • Study coordinator: Foster P Carr, MD
  • Email: drcarr@carihealth.com
  • Phone: 6192343725

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.