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GATA-3
RecruitingPhase 2Glucagon-Like Peptide-1 Receptor Agonist in the Treatment of Adult, Obesity-related, Symptomatic Asthma (GATA-3)
Glucagon-Like Peptide-1 Receptor Agonist Treatment in Adult, Obesity-related, Symptomatic Asthma (GATA-3)
Lead sponsor
Asset
Semaglutide
Subcutaneous · GLP-1 agonist
Listed sites
1
Recruiting sites
1
Enrollment
100
estimated
Study population
Obesity / overweight
Key I/E criteria
•BMI ≥30•HbA1c 5.7-6.5%
Primary endpoints
•Efficacy of semaglutide on asthma control questionnaire-7 score•Impact of semaglutide once weekly on serum periostin
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
1. . Subject must be able to understand and provide informed consent.
2. Males and females age 18 or older
3. Obesity defined as body mass index (BMI) >=30, or >=27 in the setting of >=1 weight-related comorbidity:
4. History of physician-diagnosed asthma
5. Persistent Asthma as determined by the requirement of at least medium-dose daily inhaled corticosteroid or more
6. Symptomatic asthma with an ACQ-6 score >=1.5 at enrollment and at the time of randomization
7. Patient report of stable asthma controller regimen for the prior 8 weeks
8. Evidence of bronchodilator responsiveness (>=12% and at least 200 mL increase in FEV1) or airway hyperresponsiveness with a Methacholine PC20 <=16 mg/mL or PD20 <=400 mcg in the prior year
9. Female subjects of childbearing potential must have a negative pregnancy test upon study entry
10. Female subjects of childbearing potential must agree to use a highly effective birth control method (e.g. hormonal, surgical or abstinence) for the duration of the study
Exclusion criteria
At enrollment:
1. Inability or unwillingness of a subject to give written informed consent or comply with the study protocol
2. Diagnosis of type I or type II diabetes mellitus (DM) or HbA1c ≥6.5 on screening labs
3. Use of >8 puffs/inhalations of short-acting bronchodilators most days in the previous week (i.e. answer to question #6 on ACQ-6 = 4, 5, or 6)
4. Oxygen saturation < 94% on room air
5. Patient-reported Tobacco, e-cigarette, or smoked marijuana use within 12 months#, or >10 pack-years of use*
* Smoking equivalent pack years. One pack of cigarettes a day for 1 year is equivalent to:
#Use of any inhalant >1 time weekly in the past year is considered use within 12 months.
6. Pregnancy by urine testing, current lactation, or plans to become pregnant during the study period
7. Pharmaceutical weight loss treatment for >7 days in the prior 90 days at enrollment
8. Previous surgical weight loss treatment. Can still be enrolled if surgery > 5 years ago and evidence of stable or increasing weight in the prior 3-12 months.
9. Personal history of pancreatitis as determined by history
10. Personal or family history of medullary thyroid cancer by history or multiple endocrine neoplasia syndrome type 2
11. Personal history of gallstone disease without previous cholecystectomy
12. Personal history of gastroparesis
13. Personal history of hypersensitivity to semaglutide
14. Personal history of hypersensitivity to local amide type (ex. Lidocaine) anesthetics
15. Use of antidiabetic agent, other than metformin, including GLP-1R agonist in the previous 90 days. Metformin is allowed provided the dose has been stable in the 90 days prior to screening and will remain stable for the duration of the trial.
16. Use of systemic glucocorticoids in the past 28 days
17. Use of monoclonal antibody for the treatment of asthma in the past 120 days
18. Myocardial infarction, unstable angina, stroke, or heart failure (NYHA class II) within 1 year by history
19. Patient report and confirmed by review of historical diagnostic testing by study physician of other physician-diagnosed chronic respiratory diseases: COPD, cystic fibrosis, pulmonary hypertension, interstitial lung disease, sarcoidosis, bronchiectasis
20. History of physician-diagnosed immune deficiency.
21. History of physician-diagnosed malignancy (other than excised non-melanoma skin cancer) in the past 5 years.
22. Current uncontrolled hypertension (systolic >150, diastolic >90) or untreated hyperthyroidism
23. Current, diagnosed or self-reported drug or alcohol abuse that, in the opinion of the investigator, would interfere with the subject's ability to comply with study requirements.
24. Use of investigational drugs within 20 weeks of participation, other than vaccines and/or treatments for SARS-CoV-2 authorized for emergency use
25. Past or current medical problems or findings from physical examination or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks from participation in the study, may interfere with the subject's ability to comply with study requirements or that may impact the quality or interpretation of the data obtained from the study.
At randomization:
26. Screening creatinine elevation with EGFR<30 ml/min/1.73 m2 collected at visit 1a
27. Compliance to baseline asthma inhaler therapy of <80% during run-in, at the time of randomization.
Endpoints (8)
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
Weight & body composition
1 endpointThe impact of semaglutide on weight loss over time.
Time frame:Baseline to week 24
Body weight, absolute change (kg)
change from baseline, improvement
Patient-reported / QoL
2 endpointsThe efficacy of semaglutide on asthma control questionnaire-7 score in subjects with symptoms, persistent asthma and obesity.
Time frame:Baseline to week 12
change from baseline, improvement
The efficacy of semaglutide once weekly on asthma control questionnaire-6 score in subjects with symptomatic, persistent asthma and obesity
Time frame:Baseline to week 12
change from baseline, improvement
Safety / tolerability / PK
2 endpointsThe maximal dose of semaglutide tolerated in persistent asthma with obesity.
Time frame:Baseline to week 24
descriptive
Incidence of treatment-emergent adverse events from semaglutide in persistent asthma with obesity.
Time frame:Baseline to week 26
Treatment-emergent AEs (any)
event count, event
Other (unclassified)
3 endpointsThe impact of semaglutide once weekly on serum periostin in subjects with symptomatic, persistent asthma and obesity.
Time frame:Baseline to week 4
change from baseline, improvement
The change in exhaled nitric oxide from semaglutide to week 12.
Time frame:Baseline to week 4 and week 12
change from baseline, descriptive
The change in serum periostin from semaglutide to week 12.
Time frame:Baseline to week 4 and week 12
change from baseline, descriptive
Publications (1)
Bibliography
Records linked to this trial through ClinicalTrials.gov references, PubMed NCT search, and curated study seeds. 'Canonical' marks design/result papers; others are registry references or candidates.
Registry references + supporting bibliography
- The journal of allergy and clinical immunology. Global2026 Mar (month)PMID41567689doi:10.1016/j.jacig.2025.100627via clinicaltrials gov reference derived + pubmed nct search
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.