Verapamil Effect in Cystic Fibrosis-related Dysglycemia
United States30 participantsStarted 2026-08-01
Plain-language summary
The investigators are conducting a pilot open-label pre/post interventional trial in adolescents and adults with cystic fibrosis (CF) and abnormal glucose tolerance or early CF-related diabetes mellitus (CFRD) to assess the safety and efficacy of verapamil on beta cell function and dysglycemia.
Who can participate
Age range
14 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Age 14 years and older
. Genetically-confirmed diagnosis of cystic fibrosis
. Clinical diagnosis of pancreatic insufficiency, defined as requiring pancreatic enzyme replacement therapy (PERT)
. Diagnosis of AGT or CFRD within 3-months of study enrollment
. AGT is defined as having either a OGTT 2-hour glucose \>140 mg/dL and \<200 mg/dL or OGTT 1-hour glucose \>200 mg/dL
. CFRD is defined as having a fasting glucose \>126 mg/dL and/or OGTT 2-hour glucose \>200 mg/dL
. Willing to attempt to maximize verapamil to the goal study dosage of 360 mg PO daily
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Change in 30-minute C-peptide area under the curve after mixed-meal tolerance test