Analyzing sweat and saliva to detect chemical levels in patients with chronic or infectious diseases
Official title: Pilot Study to Evaluate Substances in Sweat, Saliva, and Blood
Run by City of Hope Medical Center · NCT04160429 · Data updated 2026-11-12
This study is testing if new home methods for measuring medication levels in sweat and saliva can work as well as the standard lab tests for patients with chronic or infectious diseases.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | City of Hope Medical Center Academic / other |
| Drugs / interventions | cyclophosphamide |
| Locations | 1 site (Duarte, California) |
| Status | Recruiting |
| Started | October 30, 2018 |
| Main results expected | July 30, 2029 |
| Study ends | July 30, 2029 |
| Registry record updated | October 22, 2026 |
| Trial ID | NCT04160429 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients scheduled to receive specific medications for chronic or infectious diseases.
✕Probably not a fit
Patients with pilocarpine allergies or those who have difficulty understanding written English 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 trial collects and analyzes sweat and saliva samples from patients with chronic or infectious diseases who are receiving medications. The study aims to compare the effectiveness of novel home-based methods for quantifying medication concentrations in these biofluids against the established gold standard of liquid chromatography-mass spectrometry of plasma. Participants will provide samples using a Macroduct Sweat Collection System and complete questionnaires, with follow-up assessments conducted periodically. The goal is to evaluate the feasibility and accuracy of using wearable sweat sensors for health monitoring.
Why it matters
Potential benefit: If successful, this study could lead to more accessible and non-invasive methods for monitoring medication levels in patients.
How similar studies have gone: While the use of wearable sensors for health monitoring is an emerging field, this specific approach of comparing sweat and saliva analysis to plasma concentrations is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Scheduled to receive medications including, but not limited to, cyclophosphamide, mycophenolic acid, mycophenolate mofetil, metformin or busulfan (any dose, any number of doses, any dosing frequency) as part of treatment at any time. Patients with chronic or infectious diseases can participate * Willingness to: * Provide blood, sweat, and saliva samples * Permit medical record review Exclusion Criteria: * Pilocarpine allergy * Difficulty with understanding written English
Where it's running
-
City of Hope Medical Center
Duarte, California, United States Recruiting
Study contacts
- Principal investigator: Jeannine S McCune — City of Hope Medical Center
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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.