Study on GLP-1 for type 1 diabetes withdrawn before it began
NCT ID NCT04355832
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage study planned to test whether a drug called glucagon-like peptide-1 (GLP-1) could protect blood vessels from damage caused by repeated low blood sugar in people with type 1 diabetes. The researchers aimed to enroll 40 adults aged 18–50. However, the study was withdrawn before any participants were enrolled, so no results are available.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Glucagon-like peptide-1 (GLP-1)
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Early phase 1
The earliest testing in people: a first look at safety, in a very small group.
- Started
-
Jun 2020
- Finished
-
Sep 2025
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 50 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 40 (20 males, 20 females) individuals with type 1 diabetes aged 18-50 yr. * HbA1c \< 11.0% * Body mass index \< 40kg • m-2 * No clinically diagnosed diabetic tissue complications (i.e. history of retinopathy, neuropathy, stasis ulcers, etc) Exclusion Criteria: * Subjects unable to give voluntary informed consent * Pregnancy * Subjects on anticoagulant drugs, anemic or with known bleeding diatheses * Subjects taking any of the following medications will be excluded: non-selective beta blockers, * sedative-hypnotics, anticonvulsants, antiparkinsonian drugs, antipsychotics, antidepressants, * mood stabilizers, CNS stimulants, opioids, hallucinogens * Subjects unwillingness or inability to comply with approved contraception measures * Subjects with a history of severe uncontrolled hypertension (i.e., blood pressure greater than 160/100), heart disease, cerebrovascular incidents * Clinically significant cardiac abnormalities (e.g. heart failure, arrhythmias, ischemic tachycardia, S-T segment deviations, etc.) from history or from cardiac stress testing in subjects ≥ 40 years old. * Pneumonia * Hepatic failure /jaundice * Abnormal results following screening tests and physical examination that are clinically significant * Acute cerebrovascular/ neurological deficit * Fever greater than 38.0 C * Screening Laboratory Tests Exclusion Criteria * Hematocrit lower than 32 * WBC lower than 3 thou/ul or greater than 14 thou/ul * Liver function tests: SGOT and SGPT greater than twice upper limit of normal range (i.e. \> 80 U/L) * TBil \> 2 mg/dl * Creatinine \> 1.6 mg/dl * Alkaline phosphatase \> 150U/L * Hepatic transaminase \> 2x normal
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
University of Maryland
Baltimore, Maryland, 21201, United States
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Other studies related to the condition(s) this trial covers.
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