Evaluating VX-880 for Type 1 Diabetes with Severe Hypoglycemia
Official title: A Master Protocol to Evaluate the Safety, Tolerability, and Efficacy of Islet Cell Replacement Therapies in Subjects Who Have Type 1 Diabetes Mellitus With Impaired Hypoglycemic Awareness and Severe Hypoglycemia: A Phase 1/2/3 Study of VX-880 and a Phase 1/2 Study of VX-017
Run by Vertex Pharmaceuticals Incorporated · NCT04786262 · Data updated 2026-11-12
This study is testing if a new treatment called VX-880 can help people with Type 1 diabetes who have trouble sensing low blood sugar and have had severe low blood sugar episodes.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 65 Years |
| Sex | All |
| Enrollment | 57 (estimated) |
| Sponsor | Vertex Pharmaceuticals Incorporated Industry-sponsored |
| Locations | 29 sites (Duarte, California and 28 other locations) |
| Status | Recruiting |
| Started | March 29, 2021 |
| Main results expected | December 31, 2027 |
| Study ends | December 31, 2031 |
| Registry record updated | September 1, 2026 |
| Trial ID | NCT04786262 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are individuals with Type 1 diabetes for more than five years who have experienced at least two episodes of severe hypoglycemia in the past year.
✕Probably not a fit
Patients who have previously undergone islet cell or organ transplants, or those who have received cell therapy, may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study assesses the safety, tolerability, and efficacy of VX-880 infusion in individuals with Type 1 diabetes who experience impaired awareness of hypoglycemia and have a history of severe hypoglycemic episodes. Participants must have been insulin-dependent for over five years and have documented severe hypoglycemia within the past year. The study will involve the use of continuous glucose monitoring to track participants' glucose levels throughout the trial. The goal is to determine if VX-880 can improve the management of their diabetes and reduce the risk of severe hypoglycemia.
Why it matters
Potential benefit: If successful, this treatment could significantly improve the safety and quality of life for patients with Type 1 diabetes who struggle with severe hypoglycemia.
How similar studies have gone: While there have been studies on various treatments for Type 1 diabetes, the specific approach of using VX-880 in this context is novel and has not been extensively tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Key Inclusion Criteria: * Clinical history of T1D with \>=5 years of duration of insulin dependence * At least two episodes of documented severe hypoglycemia in the 12 months prior to enrollment * Stable diabetic treatment * Consistent use of continuous glucose monitor (CGM) for at least 3 months before Screening and willingness to use CGM for the duration of the study Key Exclusion Criteria: -Prior islet cell transplant, organ transplant, or cell therapy Other protocol-defined Inclusion/Exclusion criteria may apply
Where it's running
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City of Hope
Duarte, California, United States Recruiting -
University of California San Francisco
San Francisco, California, United States Recruiting -
UHealth Diabetes Research Institute
Miami, Florida, United States Recruiting -
University of Chicago
Chicago, Illinois, United States Recruiting -
Massachusetts General Hospital
Boston, Massachusetts, United States Recruiting -
Hospital of the University of Pennsylvania
Philadelphia, Pennsylvania, United States Recruiting
Show 23 more locations
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University of Pittsburgh Medical Center Montefiore
Pittsburgh, Pennsylvania, United States Recruiting -
Baylor Scott and White Research Institute
Dallas, Texas, United States Recruiting -
VCU Medical Center, Richmond
Richmond, Virginia, United States Recruiting -
University of Wisconsin
Madison, Wisconsin, United States Recruiting -
University of Alberta, Edmonton
Edmonton, Canada Recruiting -
McGill University Health Centre
Montreal, Canada Recruiting -
Toronto General Hospital (TGH)
Toronto, Canada Recruiting -
Vancouver General Hospital
Vancouver, Canada Recruiting -
CHU Lille
Lille, France Recruiting -
Centre de recherche en Biomédecine de Strasbourg
Strasbourg, France Recruiting -
Dresden Center for Islet Transplantation
Dresden, Germany Recruiting -
IRCCS Ospedale San Raffaele
Milan, Italy Recruiting -
Leiden University
Leiden, Netherlands Recruiting -
Oslo University Hospital
Oslo, Norway Recruiting -
King Abdullah International Medical Research Center (KAIMRC) - Riyadh - Endocrinology
Riyadh, Saudi Arabia Recruiting -
King Faisal Specialist Hospital & Research Centre - Riyadh - Endocrinology
Riyadh, Saudi Arabia Recruiting -
Churchill Hospital
Headington, Oxford, United Kingdom Recruiting -
Royal Infirmary of Edinburgh
Edinburgh, United Kingdom Recruiting -
Cardiovascular, Metabolic Medicine and Sciences, King's College London
London, United Kingdom Recruiting -
The Newcastle upon Tyne Hospitals NHS Foundation Trust
Newcastle upon Tyne, United Kingdom Recruiting -
Northwestern Organ Transplant Center
Chicago, Illinois, United States Completed -
Johns Hopkins University
Baltimore, Maryland, United States Completed -
Hopiteaux Universitaires de Geneve
Geneva, Switzerland Completed
Study contacts
- Study coordinator: Medical Information
- Email: medicalinfo@vrtx.com
- Phone: 617-341-6777
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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E-islet 01 therapy for people with long-standing Type 1 diabetes and impaired hypoglycemia awareness
This trial will test whether E-islet 01, an allogeneic human islet cell therapy, is safe and helps reduce severe or unrecognized low blood sugars in people with Type 1 diabetes of more than five years’ duration.
-
Investigating the safety and effectiveness of porcine pancreatic cells in patients with Type 1 diabetes
This study is testing if using pig pancreas cells can help adults with tough-to-manage Type 1 diabetes feel better and avoid dangerous low blood sugar episodes.
-
Predictive CGM with App for people with type 1 or insulin-treated type 2 diabetes
This study tests whether using the Accu-Chek SmartGuide CGM with its Predict App can reduce fear of hypoglycemia and improve related behaviors and confidence in adults with type 1 or insulin-treated type 2 diabetes.
-
Tirzepatide for type 1 diabetes patients who are overweight or obese
This study tests whether tirzepatide can affect stomach emptying in adults with type 1 diabetes and overweight or obesity.
-
Oral insulin vs. subcutaneous insulin in adults with type 1 diabetes
This study tests an oral insulin tablet (SCD0503) against subcutaneous insulin and placebo to see how it behaves in the blood and helps control blood sugar in adults with type 1 diabetes.
-
Genetic risk score and progression to insulin in type 1 diabetes
This study tests whether a genetic risk score can predict which people with type 1 diabetes will need insulin progression over three years.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.