NCT07598773

Brief Summary

This study is testing the feasibility of using non-invasive, remote digital tools including continuous glucose monitors (CGMs) and the Oura Ring to predict the function of beta-cells, the cells in the pancreas that secrete insulin. This study is being done in individuals with prediabetes or Type 2 diabetes. The aim is to develop remote digital tools that can predict the health and functioning of the pancreas in people with prediabetes or Type 2 diabetes, allowing personalized treatment approaches to preserve insulin secretion.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
130

participants targeted

Target at P50-P75 for all trials

Timeline
8mo left

Started Mar 2026

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress19%
Mar 2026Feb 2027

Study Start

First participant enrolled

March 25, 2026

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

May 14, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 20, 2026

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2027

Last Updated

May 20, 2026

Status Verified

May 1, 2026

Enrollment Period

10 months

First QC Date

May 14, 2026

Last Update Submit

May 14, 2026

Conditions

Keywords

PrediabetesType 2 diabetesDiabeteswearablessmartphone applifestylestressCGM

Outcome Measures

Primary Outcomes (2)

  • Feasibility: Retention

    Proportion of participants retained according to study protocol

    6-8 months

  • Feasibility: Adherence

    Mean adherence to completing in-app daily study measures

    6-8 months

Secondary Outcomes (1)

  • Continuous Glucose Excursions

    6-8 months

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Individuals with prediabetes or Type 2 diabetes

You may qualify if:

  • + years old
  • Have an established diagnosis of Prediabetes or Type 2 diabetes
  • Have a glycated hemoglobin (HbA1c) below 8% (64 mmol/mol) and a body mass index (BMI) between 18-40 kg/m2 that will be determined from your height and weight
  • Are willing to use an Abbott FreeStyle Libre 3/3+ Continuous Glucose Monitor (CGM) supplied by the study and provide the study investigators access to the CGM data
  • Are willing to use the study wearable devices (e.g., Oura Ring)
  • Are able to read, write, and speak in English
  • If you use long-acting insulin, you must be on a prescribed regimen where you administer it at bedtime only and no other time of day (bolus short-acting may be used at any time as needed)
  • All medication regimens must have a minimum of 30 days supply, and no new medications started within 30 days of enrollment
  • Weight must be stable (± 10 pounds) for 2 months prior to enrollment
  • Must have a personally owned iPhone 6s or newer (iOS 16.4+) or Android smartphone (version 12 or newer) and use this phone to download and use the study app and use the provided study devices
  • Must have a personally owned computer or tablet or have access to these devices at home
  • Must reside in the North San Francisco Bay area and be willing to travel to Novato, CA to attend two morning clinic assessments at the Buck Institute

You may not qualify if:

  • Using any Abbott CGM (prescribed or OTC)
  • BMI \<18 kg/m2 or \>40 kg/m2
  • Dairy or soy allergy
  • Currently pregnant or breastfeeding
  • Diagnosed with Type 1 diabetes or MODY (Maturity-Onset Diabetes of the Young)
  • Using an insulin pump
  • Using any of the following medications: Glucocorticoids, Non-Selective Beta Blockers (e.g., propranolol), Thiazide Diuretics
  • Currently using tobacco products (cigarettes, vapes, chew, dip, etc.)
  • Hospitalized overnight for any reason in the last 3 months
  • History of pancreatic disease (other than diabetes) or pancreatic transplantation
  • Have any active malignancy within the last 12 months
  • History of bariatric / other gastrointestinal surgery anticipated to affect glucose metabolism / cause gastroparesis
  • History of systemic disease (hepatic, cardiovascular, other) likely to interfere with glucose metabolism or study participation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Buck Institute for Research on Aging

San Francisco, California, 94102, United States

Location

Biospecimen

Retention: SAMPLES WITHOUT DNA

Frequently sampled Oral Glucose Tolerance Test (OGTT) with glucose, insulin and C-peptide at each time point; fasting HbA1c and lipid profile

MeSH Terms

Conditions

Prediabetic StateDiabetes Mellitus, Type 2Diabetes Mellitus

Condition Hierarchy (Ancestors)

Glucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 14, 2026

First Posted

May 20, 2026

Study Start

March 25, 2026

Primary Completion (Estimated)

February 1, 2027

Study Completion (Estimated)

February 1, 2027

Last Updated

May 20, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will share

Deidentified study data will be shared beyond the internal research team by 4YouandMe with external qualified researchers using an ARPA-H approved data sharing platforms such as the Synapse Data Sharing Platform at Sage Bionetworks. This data sharing will occur 1 year after the last participant has exited the study. Researchers from other institutions, and other third parties will be able to apply for access to the deidentified dataset by presenting a research study plan for analysis that has been reviewed by an IRB or ethics committee. Data released through these ARPA-H approved data sharing platforms will be stored indefinitely.

Shared Documents
STUDY PROTOCOL, ICF, ANALYTIC CODE

Locations