Clinical trial Recruiting at 22 sites Phase 2 Interventional Ages 18 to 80

Evaluating VX-993 for pain from diabetic nerve damage

Official title: A Phase 2, Randomized, Double-blind, Active-controlled, Dose-ranging, Parallel-design Study of the Efficacy and Safety of Oral VX-993 in Subjects With Pain Associated With Diabetic Peripheral Neuropathy

Run by Vertex Pharmaceuticals Incorporated · NCT06619860 · Data updated 2026-11-12

This study is testing if a new medication called VX-993 can help people with diabetes who have been dealing with pain in their legs and feet from nerve damage feel better compared to a standard treatment and a placebo.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 80 Years
SexAll
Enrollment300 (estimated)
SponsorVertex Pharmaceuticals Incorporated
Industry-sponsored
Locations47 sites (Cullman, Alabama and 46 other locations)
StatusRecruiting
StartedOctober 18, 2024
Main results expectedMarch 25, 2027
Study endsApril 22, 2027
Registry record updatedJune 1, 2026
Trial IDNCT06619860 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals with type 1 or type 2 diabetes and bilateral pain in the lower extremities due to DPN for at least one year.

Probably not a fit

Patients with painful neuropathy from causes other than DPN or those with recent serious cardiovascular events 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 aims to assess the efficacy, safety, and tolerability of VX-993 in individuals suffering from pain associated with Diabetic Peripheral Neuropathy (DPN). Participants will receive either VX-993, Pregabalin, or placebos matched to these treatments. The study will focus on patients diagnosed with diabetes who have experienced bilateral pain in their lower extremities due to DPN for at least one year. The trial is designed to determine how well VX-993 alleviates pain compared to existing treatments and placebos.

Why it matters

Potential benefit: If successful, this treatment could provide a new option for managing pain associated with diabetic peripheral neuropathy.

How similar studies have gone: Other studies have explored treatments for diabetic neuropathic pain, but the specific approach with VX-993 is novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Key Inclusion Criteria:

* Diagnosis of diabetes mellitus type 1 or type 2 with

  * Glycosylated hemoglobin A1c (HbA1c) less than or equal to (≤) 9% and
  * Presence of bilateral pain in lower extremities due to DPN (defined as a symmetric, length-dependent sensory or sensorimotor polyneuropathy) for at least 1 year

Key Exclusion Criteria:

* Painful neuropathy other than DPN
* History of cardiac dysrhythmias requiring anti-arrhythmia treatment(s)
* History of a clinical atherosclerotic event, such as myocardial infarction or stroke, within the past 12 months

Other protocol defined Inclusion/Exclusion criteria may apply.

Where it's running

  • Centricity Research Brampton
    Brampton, Canada
    Recruiting
  • OCT Research ULC
    Kelowna, Canada
    Recruiting
  • Altasciences - Beaumont Clinic Montreal
    Montreal, Canada
    Recruiting
  • Mount Sinai Hospital - Leadership Sinai Centre for Diabetes (LSCD)
    Toronto, Canada
    Recruiting
  • Centre Hospitalier Universitaire de Clermont-Ferrand - Site Gabriel-Montpied
    Clermont-Ferrand, France
    Recruiting
  • CHU de Nîmes - Pain Assessment and Treatment Center
    Nîmes, France
    Recruiting
Show 41 more locations
  • Hopital Cochin - Rheumatology
    Paris, France
    Recruiting
  • North Hospital
    Saint-Priest-en-Jarez, France
    Recruiting
  • Ruhr-Universitaet Bochum - Heart and Diabetes Center
    Bad Oeynhausen, Germany
    Recruiting
  • FutureMeds GmbH
    Berlin, Germany
    Recruiting
  • FutureMeds Frankfurt
    Offenbach/Main, Germany
    Recruiting
  • Fondazione IRCCS Istituto Neurologico Carlo Besta
    Milan, Italy
    Recruiting
  • IRCCS Ospedale San Raffaele - InSpe and Division of Neuroscience
    Milan, Italy
    Recruiting
  • Birmingham Heartlands Hospital - Heartlands Hospital Diabetes Centre and MIDRU
    Birmingham, United Kingdom
    Recruiting
  • FutureMeds Birmingham
    Birmingham, United Kingdom
    Recruiting
  • Ninewells Hospital - Endocrinology
    Dundee, United Kingdom
    Recruiting
  • FutureMeds Glasgow
    Glasgow, United Kingdom
    Recruiting
  • University of Liverpool - Aintree University Hospital
    Liverpool, United Kingdom
    Recruiting
  • St Pancras Clinical Research
    London, United Kingdom
    Recruiting
  • Manchester Diabetes Centre (MDC)
    Manchester, United Kingdom
    Recruiting
  • George Eliot Hospital NHS Trust
    Nuneaton, United Kingdom
    Recruiting
  • Royal Hallamshire Hospital - Endocrinology
    Sheffield, United Kingdom
    Recruiting
  • Cullman Clinical Trials
    Cullman, Alabama, United States
    Completed
  • Trovare Clinical Research - Bakersfield CA
    Bakersfield, California, United States
    Completed
  • Eximia Research - San Diego
    La Mesa, California, United States
    Completed
  • Paradigm Clincial Research Centers, LLC., Wheat Ridge
    Wheat Ridge, Colorado, United States
    Completed
  • Accel Research - Deland
    DeLand, Florida, United States
    Completed
  • AMR Fort Myers (The Clinical Study Center)
    Fort Myers, Florida, United States
    Completed
  • Velocity Clinical Research - Hallandale Beach
    Hallandale, Florida, United States
    Completed
  • Health Awareness, Inc., Jupiter
    Jupiter, Florida, United States
    Completed
  • Suncoast Research Associates - Miami
    Miami, Florida, United States
    Completed
  • Innovation Medical Research Center - Palmetto
    Palmetto Bay, Florida, United States
    Completed
  • Health Awareness, Inc. - Port St. Lucie
    Port Saint Lucie, Florida, United States
    Completed
  • Atlanta Center for Medical Research
    Atlanta, Georgia, United States
    Completed
  • Accel Research - Decatur
    Decatur, Georgia, United States
    Completed
  • Velocity Clinical Research - Boise
    Meridian, Idaho, United States
    Completed
  • Healthcare Research Network - Flossmoor IL
    Flossmoor, Illinois, United States
    Completed
  • Quest Research Institute
    Farmington Hills, Michigan, United States
    Completed
  • Healthcare Research Network - Hazelwood MO
    Hazelwood, Missouri, United States
    Completed
  • Eximia Research - Raleigh
    Raleigh, North Carolina, United States
    Completed
  • Velocity Clinical Research - Cleveland
    Beachwood, Ohio, United States
    Completed
  • Velocity Clinical Research - Providence
    East Greenwich, Rhode Island, United States
    Completed
  • Clinical Trials of South Carolina - Berkeley - Moncks Corner
    Moncks Corner, South Carolina, United States
    Completed
  • Gadolin Research
    Beaumont, Texas, United States
    Completed
  • Velocity Clinical Research, Dallas
    Dallas, Texas, United States
    Completed
  • San Antonio Clinical Trials
    San Antonio, Texas, United States
    Completed
  • AMR Norfolk
    Norfolk, Virginia, United States
    Completed

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.