Comparing VX-880 with VX-017 for type 1 diabetes mellitus
Official title: A Safety, Tolerability, and Efficacy Study of VX-880 and VX-017 in Participants With Type 1 Diabetes
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
Interventions
VX-880
Infused into the hepatic portal vein.
VX-017
Infused into the hepatic portal vein.
Canadian Sites (4)
University of Alberta, Edmonton
Edmonton, Canada
McGill University Health Centre
Montreal, Canada
Toronto General Hospital (TGH)
Toronto, Canada
Vancouver General Hospital
Vancouver, Canada
Eligibility Criteria
See who this study is looking for6 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +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 enrollmentEnrolmentThe number of participants a study plans to include, or has included.Read more →
- +Stable diabetic treatment
- +Consistent use of continuous glucose monitor (CGM) for at least 3 months before ScreeningScreeningThe checks done before joining, to see whether a study fits.Read more → and willingness to use CGM for the duration of the study
Exclusion
- −Prior islet cell transplant, organ transplant, or cell therapy
- −Other protocolProtocolThe detailed plan a study must follow.Read more →-defined InclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more →/Exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → may apply
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is testing a treatment for a condition.
Phase 3Phase 3A large study comparing a treatment against the current standard.Read more → — a large study comparing this against the current standard, usually across many hospitals.
What is being given or done in this study: VX-880, VX-017.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
- armsInterventionsModule.interventions[].name
How the study is run
Groups are assigned by the study team using set rules, rather than by chance.
This study is open-labelOpen-labelEveryone knows which treatment is being given — nothing is hidden.Read more →: everyone knows which treatment is being given, including you and the study team.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
There are 2 groups in this study.
From the trial registry
Built from this field:
- armsInterventionsModule.armGroups[].type
Who the study is looking for
The study lists an age range of 18 years to 65 years.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 57 people.
The study is currently expected to finish around December 2031.
The main measurement is taken over: From VX-880 infusion to end of study (at least 5 years).
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Part A: Safety and Tolerability as Assessed by Number of Participants With Adverse EventsAdverse eventAny medical problem that happens during a study, whether or not the treatment caused it.Read more → (AEs) — measured over From VX-880 infusion to end of study (at least 5 years).
Parts B and C: Proportion of Participants who are Insulin Independent with Absence of Severe Hypoglycemic Events (SHEs) — measured over 1 year after achieving insulin independence (following VX-880 infusion).
Part D: Safety and Tolerability as Assessed by Number of Participants With Adverse Events (AEs) — measured over From VX-017 infusion to end of study (at least 5 years).
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT04786262 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About VX-880Biological
Infused into the hepatic portal vein.
From the trial registry — its own words, unedited.
What a biological is here: A treatment made from or by living systems — such as antibodies, vaccines, or cell-based therapies.
Read the full explanation → · in clinical review
About VX-017Biological
Infused into the hepatic portal vein.
From the trial registry — its own words, unedited.
What a biological is here: A treatment made from or by living systems — such as antibodies, vaccines, or cell-based therapies.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: an age range of 18 years to 65 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
This study is open-labelOpen-labelEveryone knows which treatment is being given — nothing is hidden.Read more →: everyone knows which treatment is being given, including you and the study team.
Groups are assigned by the study team using set rules, rather than by chance.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists an age range of 18 years to 65 years.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: From VX-880 infusion to end of study (at least 5 years).
The study as a whole is currently expected to finish around 2031-12-31.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 57 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 4 locations, including: Edmonton, Canada; Montreal, Canada; Toronto, Canada; Vancouver, Canada.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
This study will evaluate the safety, tolerability and efficacy of VX-880 infusion and VX-017 infusion in participants with type 1 diabetes (T1D) and impaired awareness of hypoglycemia (IAH) and severe hypoglycemia.
Think this trial might be right for you?
Complete a quick intake form and we will match you with this and other relevant trials based on your medical profile.
See if this trial could fit youThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.