← Trials/Trial dossier/NCT07640139

Enrolling by invitation

Estimating the Impact of Obesity Medications on Clinical and Economic Outcomes

Lead sponsor

Indiana University

Asset

Tirzepatide

Subcutaneous · GLP-1 / GIP dual

Listed sites

1

Recruiting sites

Enrollment

125,000

estimated

Study population

Obesity / overweight

Key I/E criterion

BMI ≥30

Primary endpoints

Subject body weightSubject body mass index (BMI)Obesity and overweight classification

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

NCT IDNCT07640139
Org study ID00855196
Secondary ID26469Indiana University

Timeline

Milestones

Study start2026-01-01actual
Study first posted2026-06-10actual
Last update posted2026-06-10actual
Primary completion2029-12-31estimated
Study completion2029-12-31estimated

Assets

Investigational agents

Study populations

Who this study enrolls

Obesity / overweight

Eligibility

Who can enroll

Minimum age18 Years
Maximum age64 Years
SexAll
Healthy volunteersNot accepted
Sampling methodNon probability sample

Study population text

Working-age adults and their adult dependents who receive their health insurance coverage from participating, self-insured Indiana employers.

Eligibility criteria

The study cohort is limited to employees and adult dependents aged 18-64 who receive their health insurance coverage from self-insured Indiana employers that agree to participate in the study.

To be included in the study, the individuals must:

1. Be an Indiana resident;

2. Have health insurance benefits provided by participating employers (includes employees and dependents);

3. Be between the ages of 18 and 64;

4. Meet the eligibility criteria for an obesity medication prescription:

1. BMI of ≥ 30 (obesity) or

2. BMI of ≥ 25 (overweight) and at least one body weight-related comorbid condition (e.g., hypertension, dyslipidemia, type 2 diabetes mellitus, obstructive sleep apnea, or cardiovascular disease). If the prescribing eligibility criteria are updated in the future, we will update accordingly.

5. Individuals must have at least 6 months of enrollment prior to study inclusion (i.e., prior to the index date), though we may use additional pre-treatment data if available.

An individual who meets any of the following criteria will be excluded from participation in the cohort:

1. Has a condition associated with weight loss: a diagnosis of cancer (except for non-melanoma skin cancer), pancreatitis, eating disorders (e.g., anorexia nervosa and avoidant restrictive food intake disorder), HIV, unintentional weight loss, or cirrhosis at baseline;

2. Has a condition for which obesity medications are contraindicated (for example, medullary thyroid carcinoma, multiple endocrine neoplasia, etc.).

3. Receipt of diabetes-indicated incretin-based medications. If an individual has a claim for a related incretin-based therapy diabetes medication (e.g., Mounjaro, Ozempic, Rybelsus, Victoza) without an obesity-medication claim during the study period, the individual will be excluded from analysis.

4. Prior bariatric surgery.

5. Evidence of prior use of incretin-based obesity medications for weight loss.

Endpoints (27)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Coverage by outcome category

Other (unclassified)
21
Weight & body composition
2
Cardiometabolic biomarkers
2
Safety / tolerability / PK
1
Other clinical outcomes
1

Weight & body composition

2 endpoints
Primary/protocol endpoint

Change in subject body weight.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Primary/protocol endpoint

Change in subject body mass index (BMI).

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Cardiometabolic biomarkers

2 endpoints
Other/protocol endpoint

Change in blood pressure laboratory values.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Other/protocol endpoint

Change in cholesterol laboratory values.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Safety / tolerability / PK

1 endpoint
Other/protocol endpoint

Change in clinical A1C laboratory values.

Time frame:6 months periods from 2018 to 2029

change from baseline, event

Other clinical outcomes

1 endpoint
Other/protocol endpoint

Change in retention / turnover.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Other (unclassified)

21 endpoints
Primary/protocol endpoint/low confidence

Change in obesity and overweight classification.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in emergency department visits.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in obesity-related emergency department visits.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in non-obesity related emergency department visits.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in preventable emergency department visits.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in non-preventable emergency department visits.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in inpatient admissions.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in obesity-related inpatient admissions.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in non-obesity-related inpatient admissions.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in inpatient admissions that began in the emergency department.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in direct admit inpatient admissions

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in 30 day inpatient readmissions.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in outpatient visits.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in obesity-related outpatient visits.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in non-obesity-related outpatient visits

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in total medical spending.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in total pharmacy spending.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in total pharmacy spending excluding incretin-based medications.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change in total spending on obesity-related complications

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Other/protocol endpoint/low confidence

Change in absenteeism.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Other/protocol endpoint/low confidence

Change in disability claims.

Time frame:6 months periods from 2018 to 2029

change from baseline, improvement

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 1, 2026
Endpoint classificationDelfa endpoint taxonomy v2 (May 13, 2026)
Results tableno registry results posted yet

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 1, 2026 snapshot.