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TIRO-AF
RecruitingPhase 2TIRzepatide for the Treatment of Obesity in Patients With Atrial Fibrillation
TIRO-AF: TIRzepatide for the Treatment of Obesity in Patients With Atrial Fibrillation
Lead sponsor
Asset
Tirzepatide
Subcutaneous · GLP-1 / GIP dual
Listed sites
1
Recruiting sites
1
Enrollment
100
estimated
Study population
Atrial fibrillation, Obesity / overweight
Key I/E criteria
•BMI 27-60•HbA1c ≤10%
Primary endpoint
•AFib burden
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
Timeline
Milestones
Assets
Investigational agents
Study populations
Who this study enrolls
Eligibility
Who can enroll
Inclusion criteria
Subjects eligible for inclusion in this study must meet all of the following criteria:
1. Sinus rhythm at randomization
1. Sustained normal sinus rhythm (or)
2. Normal sinus rhythm at office visit
2. Age ≥18 to ≤80 years old
3. BMI ≥ 27 and ≤60 kg/m2
4. AFIB criteria:
1. Must be documented by ECG or monitor.
2. Must have symptomatic AFIB (Atrial Fibrillation).
3. In terms of types of AFIB, either paroxysmal AFIB or persistent AFIB.
5. All anti-diabetic medication (including insulin) must be stable for at least 3 months prior to enrollment,
6. HbA1c ≤10% for patients diagnosed with Type 2 Diabetes Mellitus (T2DM).
7. Ability and willingness to give themselves the medication, comply with study requirements and provide written informed consent.
Exclusion criteria
Subjects meeting any of the following criteria are not eligible for inclusion in this study.
1. AFIB ablation within the last 6 months
2. Planned ablation prior to 3 months post randomization
3. Significant cardiac valvular disease with planned cardiac valve intervention/surgery in the next 12 months
4. Severe uncompensated cardiopulmonary disease
5. New York Heart Association Class III or IV
6. Left ventricular ejection fraction <35% at the time of screening
7. Hospitalization in the past 6 months for myocardial infarction, unstable angina, stroke, transient ischemic attack, or heart surgery
8. History of solid organ transplant
9. Type 1 diabetes mellitus or auto-immune diabetes
10. Estimated Glomerular Filtration Rate (eGFR) < 30 mL/min/1.73 m2 at screening or on dialysis
11. Advanced and decompensated cirrhosis characterized by: presence of fibrosis stage 4 (cirrhosis) in liver biopsy, ascites, hepatic encephalopathy, portal hypertension, or esophageal varices.
12. Hemoglobin less than 9 g/dL
13. Current participation or use of investigational therapy or less than 3 months since participation in any drug or device trial.
14. Liver transaminase level >300 U/L
15. Subject reports alcohol use of on average >2 drinks/day
16. Presence of active malignancy (except non-melanoma skin cancer)
17. Life expectancy less than 3 years due to concomitant diseases
18. Major mental health, psychological disorders, or substance abuse disorders that could disqualify the patient from metabolic surgery
19. Any condition or major illness that, in the investigator's judgment, places the subject at undue risk by participating in the study
20. Plans to move outside the primary location of study (Northeast Ohio) within the next 12 months
21. Any personal or family history of pancreatitis or medullary thyroid cancer or MEN2 (Multiple Endocrine Neoplasia Type 2)
22. Current use or any use within the last 6 months of GLP-1/DPP4i (Glucagon-Like Peptide-1/Dipeptidyl Peptidase-4 inhibitor) or GIP (Gastric Inhibitory Polypeptide)/GLP-1
23. Known hypersensitivity to investigational product due to prior use of GLP-1/DPP4i or GIP/GLP-1
24. Allergy to medical grade tape or adhesive
25. Pregnant, breast-feeding or plans to become pregnant
Endpoints (1)
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.
Other (unclassified)
1 endpointAFib burden
Time frame:Up to 4 weeks
descriptive
Provenance
Sources
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.