Registry to track how cannabis affects cancer symptoms
Official title: Cannabis Use Registry to Improve Overall Understanding of Symptoms (CURIOUS)
Run by HealthPartners Institute · NCT07227324 · Data updated 2026-11-12
This app-based registry enrolls adults with cancer who use cannabis to see if cannabis use is linked to changes in symptoms and supportive medication use.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 1000 (estimated) |
| Sponsor | HealthPartners Institute Academic / other |
| Locations | 1 site (Saint Louis Park, Minnesota) |
| Status | Recruiting |
| Started | August 26, 2025 |
| Main results expected | April 2027 |
| Study ends | April 2028 |
| Registry record updated | November 12, 2025 |
| Trial ID | NCT07227324 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (18+) with a cancer diagnosis who currently use cannabis or are interested in tracking cannabis effects and can use a smartphone are ideal candidates.
✕Probably not a fit
People who do not use cannabis, lack smartphone or internet access, or decline to share identifiable health data are unlikely to benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
HealthPartners Institute, in partnership with Ontracka, runs an app-based registry that collects patient-level data on cannabis use, real-time symptom responses, and changes in supportive care medications. Participants sign electronic consent, create an account, and use the Ontracka mobile app to log cannabis consumption and symptom responses. Validated questionnaires (PRO-CTCAE every other week, PROMIS Global every 4 weeks) and medication logs are collected through 12 weeks with additional follow-up at month 6 and month 12. The registry also provides expert cannabis education and dosing recommendations to support shared decision-making between patients and their oncology clinicians.
Why it matters
Potential benefit: If successful, the registry could give patients and oncology teams cancer-specific, real-world information to guide whether and how to use cannabis for symptom control.
How similar studies have gone: Other observational registries and surveys have collected real-world cannabis and symptom data, but randomized evidence on benefit for cancer symptoms remains limited, so this approach builds needed real-world evidence.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * any adult aged 18 or older who is diagnosed with cancer and using cannabis
Where it's running
-
HealthPartners Institute Cancer Research Center
Saint Louis Park, Minnesota, United States Recruiting
Study contacts
- Study coordinator: Jordan Cowger, MPH
- Email: jordan.cowger@parknicollet.com
- Phone: 952-993-6071
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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.