Miniature breath sensors to detect hypo- and hyperglycemia in young people with diabetes
Official title: Miniaturized Smart Sensor Device for the Detection of Hypo- and Hyperglycemic Events in Persons Diagnosed With Diabetes
Run by Indiana University · NCT07696273 · Data updated 2026-11-12
A small breath-sensor device will try to see if specific breath compounds can signal low or high blood sugar in youths with diabetes.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 7 Years to 25 Years |
| Sex | All |
| Enrollment | 40 (estimated) |
| Sponsor | Indiana University Academic / other |
| Locations | 1 site (Indianapolis, Indiana) |
| Status | Recruiting |
| Started | May 31, 2026 |
| Main results expected | September 1, 2027 |
| Study ends | October 1, 2027 |
| Registry record updated | July 10, 2026 |
| Trial ID | NCT07696273 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Youth ages 7-25 with Type 1 or Type 2 diabetes who use a Dexcom CGM and attend the diabetes camp in Indiana.
✕Probably not a fit
Individuals not experiencing discernible breath markers corresponding to glycemic changes or unable to cooperate with sample collection may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
The study tests a miniaturized device that uses metal oxide gas sensors to detect volatile compounds in exhaled breath and see if they correlate with glycemic events. Two analytical platforms are used in parallel: the miniaturized sensor array and conventional GC-MS analysis of breath samples. Participants are youths with diabetes at a diabetes camp who already use CGMs and are willing to provide breath samples. Breath samples are collected alongside CGM data to validate whether the sensor can distinguish glycemic states in real-world conditions.
Why it matters
Potential benefit: If successful, the device could offer a noninvasive way to monitor blood sugar events.
How similar studies have gone: Previous approaches in breath analysis for glucose-related states are exploratory but supportive of the concept, though miniaturized devices in real-world use remain investigational.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Who are diagnosed with T1D or T2D. * Who are between 7-25 years of age. * That use a Dexcom (G6 or G7) CGM device. * That have an established working CGM for at least 12 hours. * That are willing to share their CGM data for the study duration. * That are willing and able to fill up a breath collection bag. * That are attending a diabetes camp in the state of Indiana. Exclusion Criteria: * That are smokers or who live with someone who smokes in their vicinity (including prior to attending camp). * That have a condition or abnormality other than T1D/T2D that in the opinion of the Investigators would compromise the safety of the subject or the quality of the data. * That have symptoms or recently been diagnosed with an upper respiratory illness including COVID-19 (or other viral/bacterial infections). * That follow a "ketogenic diet". * That are unable or unwilling to cooperate with either of the sample collection modes.
Where it's running
-
Jameson Camp
Indianapolis, Indiana, United States Recruiting
Study contacts
- Principal investigator: Linda DiMeglio, MD — Indiana University
- Study coordinator: Mangilal Agarwal, PhD
- Email: agarwal@iu.edu
- Phone: 317-278-9792
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Breath sensor for detecting hypo- and hyperglycemia in teens with type 1 diabetes
This test checks whether a breath-based VOC sensor can spot low or high blood sugar in 12–19-year-olds with type 1 diabetes who use a Dexcom CGM.
-
Comparing continuous glucose monitoring to fingerstick blood sugar checks
This study tests if a continuous glucose monitoring system can help adult surgical patients manage their blood sugar better than traditional fingerstick tests.
-
Monitoring glucose levels in critically ill patients
This study looks at how often critically ill patients in the ICU experience low blood sugar and how using continuous glucose monitors can help improve their care.
-
Using semaglutide to manage high blood sugar after kidney transplants
This study is testing if semaglutide can help manage high blood sugar in people who have recently had a kidney transplant, while also looking at its effects on weight and kidney function.
-
Improving diabetes management in hospitals with a decision support tool
This study is testing a new electronic tool that helps doctors manage blood sugar levels in hospitalized patients with diabetes to see if it improves their care and reduces costs.
-
Maltodextrin vs Sugar Water for Pre-Surgery Carbohydrate Loading in Older Adults
This study tests whether a maltodextrin drink before surgery leaves less fluid in the stomach than sugar water for adults 60 and older undergoing leg surgery with spinal or epidural anesthesia.
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.