Could an allergy drug shield diabetics from organ damage?
NCT ID NCT07685886
First seen Jul 06, 2026 · Last updated Jul 07, 2026 · Updated 1 time
Summary
This study tests whether montelukast, a common allergy medication, can reduce damage to the kidneys, eyes, and blood vessels in adults with type 2 diabetes and early kidney disease. The drug works by blocking inflammatory chemicals called leukotrienes, which are linked to diabetes complications. Participants take either montelukast or a placebo daily for 12 months while researchers measure changes in kidney function, blood vessel health, and eye health.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- montelukast
- What this could lead to
- If it works, montelukast could become a new, affordable way to slow or prevent kidney, eye, and blood vessel damage in people with type 2 diabetes.
- What could go wrong
- This is a small, early-phase trial, so results may not apply to everyone. Montelukast is generally safe but may cause side effects like headache or digestive issues.
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
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 110 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2026
An estimate. Start dates often move.
- Expected to finish
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Aug 2031
An estimate. End dates often move.
- Lead sponsor
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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
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Diabetes type 2 * Urine albumin to creatinine ratio 30-5000 mg/g * CKD stage 2-3 (eGFR 30-89 ml/min/1.73m2) * Blood pressure \< 140/90 mmHg prior to randomization * BMI \< or = to 40 kg/m2 * Use of ACEi or ARB with stable dose for 4 weeks * if on SGLT2i or GLP-1RA, stable dose for 3 months prior to baseline * Able to provide consent Exclusion Criteria: * Type 1 diabetes * Uncontrolled hypertension * Hemoglobin A1C \>10% * Pregnancy or planning to become pregnant or currently breastfeeding * Allergy to aspirin * History of major psychiatric disorder * Use of inhaled or systemic corticosteroids or long-acting beta agonists * Proliferative retinopathy requiring current treatment
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Colorado Denver
Aurora, Colorado, 80045, United States
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