NCT07431177 · Novartis Pharmaceuticals
A Phase IIb Dose-ranging Study to Assess the Efficacy and Safety of GIA632 in Participants With Non-segmental Vitiligo
(VITESS)
What this study is about
The main purpose of this conducted at multiple hospitals, randomly assigned, where neither patients nor doctors know which treatment is given, compared against an inactive treatment Phase 2b study is to investigate the safety and effectiveness of GIA632 in participants with NSV and to identify the optimal dose to be promoted into the confirmatory Phase 3 program.
View original scientific description
The main purpose of this multicenter, randomized, double-blind, placebo-controlled Phase 2b study is to investigate the safety and efficacy of GIA632 in participants with NSV and to identify the optimal dose to be promoted into the confirmatory Phase 3 program.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Signed informed consent must be obtained prior to participation in the study
- Male or female as assigned at birth ≥ 18 years of age at the time of screening
- Individuals with a diagnosis of non-segmental vitiligo and confirmation of diagnosis through physical examination by the investigator
- Non-segmental vitiligo, as assessed at screening, as
- ≥ 0.5% Body Surface Area (BSA) on the face and F-VASI score ≥ 0.5
- ≥ 3% BSA on non-facial areas (minimum of 3% should be calculated in addition to hands and feet) and T-VASI score = 3 to 60
Exclusion criteria
- Individuals unable or unwilling to follow the study procedures and/or to complete the study-related questionnaires
- Presence of segmental or mixed vitiligo, or other skin comorbidities that may interfere with study assessments (e.g., hypopigmented mycosis fungoides, genetic diseases with pigmentary aberrations \[such as piebaldism, Waardenburg, etc.\], chemical- or druginduced leukoderma, etc.)
- Previous exposure to biologic drugs directly targeting IL-15 or IL-15 receptors
- Individual who previously attempted or completed depigmentation therapy for NSV
- Use of prohibited medication \& treatments. Other protocol-defined inclusion/exclusion criteria may apply
Where
- Birmingham, Alabama
- Fountain Valley, California
- San Diego, California
- Thousand Oaks, California
- Hollywood, Florida
- Jacksonville, Florida
- Miami, Florida
- St. Petersburg, Florida
- Indianapolis, Indiana
- Fort Gratiot, Michigan
- Troy, Michigan
- Omaha, Nebraska
And 9 more locations — see the full list below.
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 8, 2026 · Source of record for eligibility and locations