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 type | Observational |
|---|---|
| Ages | 18 Years to 70 Years |
| Sex | All |
| Enrollment | 30 (estimated) |
| Sponsor | Cari Health Inc. Academic / other |
| Locations | 1 site (Lemon Grove, California) |
| Status | Recruiting |
| Started | August 26, 2024 |
| Main results expected | March 2026 |
| Study ends | April 2026 |
| Registry record updated | February 13, 2025 |
| Trial ID | NCT05981573 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
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.