Semaglutide in CFRD

Phase 2

Completed

• Conditions: Cystic Fibrosis-related Diabetes; Cystic Fibrosis
• Interventions: Drug: Semaglutide

• Registration Number: NCT05788965
• Lead Sponsor: University of Minnesota

Brief Summary

This open label, single arm pilot study, will examine the safety and tolerability of GLP-1RA semaglutide as an add-on therapy to insulin for overweight/obese adult patients with cystic fibrosis related diabetes (CFRD).

Detailed Description

The overall goal of this proposal is to collect pilot data for safety and feasibility metrics to support a future larger randomized controlled trial. In this study, we will examine the safety and tolerability of GLP-1RA semaglutide as an add-on therapy to insulin for overweight/obese adult patients with CFRD. We hypothesize that weekly administration of the long-acting GLP-1RA semaglutide to overweight/obese CFRD patients will be safe and well tolerated.

Specific Aim 1: Collect pilot data on the safety and feasibility of weekly semaglutide therapy in overweight and obese patients with CFRD to support a future larger randomized controlled trial.

Hypothesis 1: Weekly therapy with GLP-1RA semaglutide will be safe and well tolerated in overweight/obese adults with CFRD.

Specific Aim 2: Collect preliminary data to examine the impact of semaglutide therapy on insulin secretion, glucagon and glucose levels as measured by oral glucose tolerance test (OGTT), and on glycemic outcomes as measured by continuous glucose monitoring (CGM) and HbA1c.

Hypothesis 2a: Treatment with semaglutide will lower glucose levels, and increase insulin and C-peptide area under the curve (AUC) during the OGTT as compared to baseline.

Hypothesis 2b: Treatment with semaglutide will improve glycemic control as indicated by time in range on CGM and HbA1c

Study Timeline

• Study First Submitted: 2023-03-15
• Study First Submitted QC: 2023-03-15
• Study First Posted: 2023-03-29
• Study Start: 2023-04-30
• Primary Completion: 2024-12-31
• Study Completion: 2024-12-31
• Status Verified: 2025-02
• Last Update Submitted: 2025-02-03
• Last Update Posted: 2025-02-06

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 8

Inclusion Criteria

• Adult subjects 18 years or older with CFRD and on insulin treatment
• BMI >26 kg/m2
• Diagnosis of pancreatic insufficiency (based on treatment with pancreatic enzyme replacement therapy)
• A participant who is capable of becoming pregnant must agree to take precautions that are effective in preventing pregnancy throughout this study. These methods could include one of the following 1. Complete abstinence from sexual intercourse; 2. Oral, injectable, or implanted hormonal contraceptives 3. Intrauterine device 4. Tubal ligation

Exclusion Criteria

• personal or family history of medullary thyroid cancer or multiple endocrine neoplasia syndrome type 2 (MEN2)
• acute pulmonary exacerbation requiring IV antibiotics or systemic glucocorticoids within 4 weeks prior to baseline study procedures
• gastrointestinal(GI) symptom exacerbation defined by current nausea/vomiting or diarrhea at the baseline assessment
• history of chronic GI problems requiring hospitalization in the 1 year prior to baseline
• history of clinically symptomatic pancreatitis
• history of clinically significant gastroparesis
• history of eating disorders
• less than 24 weeks since start of a new CFTR corrector/modulator therapy
• pregnancy or lactation
• severe CF liver disease
• chronic kidney disease
• history of suicide attempts or active suicidal ideation
• Non-English speakers and those unable to read in English

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Single Arm	Semaglutide	This open label, single arm pilot study, will examine the safety and tolerability of GLP-1RA semaglutide as an add-on therapy to insulin for overweight/obese adult patients with CFRD.

Primary Outcome Measures

Name	Time	Method
Feasibility, safety, tolerability	Duration of anticipated participation for an individual participant's would be around 15 weeks.Duration anticipated to complete all study procedures, including any long-term follow-up, and data analysis is 24 months.	The primary outcomes are related to feasibility, including safety and treatment tolerability. Safety will be evaluated as the proportion (in %) of participants who experience a serious adverse event during the study. Tolerability will be evaluated as the proportion (in %) of participants who discontinue their assigned treatment due to side effects.

Trial Locations

Locations (1)

University of Minnesota; 🇺🇸 Minneapolis, Minnesota, United States