About this trial
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.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
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
Disqualifiers
Severe lung disease indicated by forced expiratory volume in 1 second (FEV1) <50% predicted on most recent spirometry testing
Body mass index (BMI) <18 kg/m2
Weight <50 kg
Current or planned pregnancy within the next 6 months
Trial design
Single group
Treatments tested in this trial
Verapamil Hydrochloride
DrugVerapamil extended release (ER) will be initiated at a dose of 120mg daily and up-titrated over six weeks to target dose of 360mg daily as tolerated.
Treatment groups
Trial outcomes
Primary outcomes
Change in 30-minute C-peptide area under the curve after mixed-meal tolerance test
laboratory test, measured in ng/mL
Secondary outcomes
Change in 180 minute C-peptide area under the curve after mixed-meal tolerance test
laboratory test, measured in ng/mL
Change in insulin level area under the curve after mixed-meal tolerance test
laboratory test, measured in microIU/mL
Change in proinsulin area under the curve after mixed-meal tolerance test
laboratory test, measured in pmol/L
Change in glucose area under the curve after mixed-meal tolerance test
laboratory test, measured in mg/dL
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options: