Combination approach with ritlecitinib and nbUVB compared to ritlecitinib alone for treating vitiligo

2025-521504-22-00 Protocol 25-PP-03 Therapeutic exploratory (Phase II) Ongoing, recruiting

Start 16 Oct 2025 · Status Ongoing, recruiting · 1 EU/EEA countries · 5 sites · Protocol 25-PP-03

Overview

Sponsor-declared trial summary

Phase Therapeutic exploratory (Phase II)
Status Ongoing, recruiting
Participants planned 80
Countries 1
Sites 5

Vitiligo

To compare between the groups, the mean percentage change of F-VASI and T-VASI between the baseline and week 52.

Key facts

Sponsor
Centre Hospitalier Universitaire De Nice
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Skin and Connective Tissue Diseases [C17]
Trial duration
16 Oct 2025 → ongoing
Decision date (initial)
2025-08-06
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Therapy

To compare between the groups, the mean percentage change of F-VASI and T-VASI between the baseline and week 52.

Secondary objectives 12

  1. 1. To compare the proportion of patients treated with combined ritlecitinib + nbUVB versus ritlecitinib monotherapy achieving F-VASI-50 at week 24, week 36, week 52 and week 72.
  2. 2. To compare the proportion of patients treated with combined ritlecitinib + nbUVB versus ritlecitinib monotherapy achieving F-VASI 75 at week 24, week 36, week 52 and week 72.
  3. 3. To compare the proportion of patients treated with combined ritlecitinib + nbUVB versus ritlecitinib monotherapy achieving F-VASI 90 at week 24, week 36, week 52 and week 72.
  4. 4. To compare the proportion of patients treated with combined ritlecitinib + nbUVB versus ritlecitinib monotherapy achieving T-VASI50 at week 24, week 36, week 52 and week 72
  5. 5. To compare the proportion of patients treated with combined ritlecitinib + nbUVB versus ritlecitinib monotherapy achieving T-VASI75 at week 52 and week 72
  6. 6. To compare the proportion of patients treated with combined ritlecitinib + nbUVB versus ritlecitinib monotherapy, the mean %CFB F-VASI and T-VASI at week 12, week 24, week 36 and week 72
  7. 7. To compare the proportion of patients treated with combined ritlecitinib + nbUVB versus ritlecitinib monotherapy, the mean change of Vitiligo Noticeability scale (VNS) at week 36, week 52 and week 72
  8. 8. To compare the proportion of patients treated with combined ritlecitinib + nbUVB versus ritlecitinib monotherapy, the evolution of quality of life measured using the VIPs short form between baseline and week 36, week 52 and week 72
  9. 9. To assess the safety and tolerability of the bi-therapy
  10. 10. To compare within each group, the evolution of patient global impression between baseline and each visit
  11. 11. To compare within each group, the disease activity between baseline and week 12, week 24, week 36, week 52 and week 72 visit
  12. 12. To compare within each group, the disease stabilisation between baseline and week 12, week 24, week 36, week 52 and week 72 visit

Conditions and MedDRA coding

Vitiligo

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 9

  1. 1. Men and women with non-segmental vitiligo.
  2. 2. Age ≥ 18 age old
  3. 3. BSA involvement between 4% and 60% inclusive, excluding involvements at palms of the hands, soles of the feet, or dorsal aspect of the feet
  4. 4. BSA ≥0.5% involvement on the face (face is defined as including the area on the forehead to the original hairline, on the cheek vertically to the jawline, and laterally from the corner of the mouth to the tragus. The face will not include scalp, ears, neck, or surface area of the lips, but will include the nose and the eyelids)
  5. 5. F-VASI ≥0.5 and T-VASI ≥3
  6. 6. Active and stable vitiligo
  7. 7. For Women of childbearing potential (WOCBP), an effective contraception (estroprogestative pill, contraceptive implant, IUD, condoms or tubal ligation) should be used for more than one month before the inclusion in the study; Women of childbearing potential (WOCBP) must have a negative urine pregnancy test result at baseline;
  8. 8. Affiliation to a social security system;
  9. 9. Signed informed consent.

Exclusion criteria 13

  1. 1. Pregnant or breast-feeding women. Or women with potential childbearing and not taking contraceptives or who plan to get pregnant during the study duration,
  2. 2. Segmental or mixed vitiligo
  3. 3. Contraindication to nbUVB phototherapy
  4. 4. Concomitant use of topical or systemic immunosuppressive medication or steroids
  5. 5. Patients treated before with oral JAK inhibitor, topical treatments (including JAK inhibitors) that could affect vitiligo (eg, corticosteroids, vitamin D3 and calcineurin inhibitor) within 2 Weeks of Day 1 (Baseline) and during the study
  6. 6. Patients suffering from photodermatosis or taking photosensitive drugs
  7. 7. Patients with more than 33% of leucotrichia on the lesions (Leukotrichia in more than 33% of the face surface area affected with vitiligo lesions OR leukotrichia in more than 33% of the total body surface area affected with vitiligo lesions),
  8. 8. Personal history of skin cancer
  9. 9. Personal history of any malignancies or a history of malignancies with the exception of adequately treated or excised nonmetastatic basal cell or squamous cell cancer of the skin or cervical carcinoma in situ will be excluded from the study
  10. 10. Patients with active infection or other systemic/ inflammatory disease
  11. 11. Tuberculosis or latent tuberculosis
  12. 12. Vulnerable people: pregnant or breast-feeding women, minors, adult under guardianship, deprived of freedom or with psychiatric condition
  13. 13. Participants in other clinical therapeutic studies involving a drug that could interfere with the present evaluation.

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. The Facial Vitiligo Area Scoring Index (F-VASI) is a tool allowing to assess the depigmentation of the face. Using the fingertips unit (FTU), it calculates the extent of vitiligo on the face by using the number of FTU [20]. %CFB in F-VASI at Week 52 is defined as %CFB FVASIW0-W52 = (FVASIw0 - FVASIw52)/FVASIw0.

Secondary endpoints 12

  1. 1. The Facial Vitiligo Area Scoring Index (F-VASI) is a tool allowing to assess the depigmentation of the face. Using the fingertips unit (FTU), it calculates the extent of vitiligo on the face by using the number of FTU. A decrease in 50% or more of the initial F-VASI is called F-VASI50 and will define a success.
  2. 2. The Facial Vitiligo Area Scoring Index (F-VASI) is a tool allowing to assess the depigmentation of the face. Using the fingertips unit (FTU), it calculates the extent of vitiligo on the face by using the number of FTU. A decrease in 75% or more of the initial F-VASI is called F-VASI 75 and will define a success.
  3. 3. A decrease in 90% or more of the initial F-VASI is called F-VASI 90 and will define a success. The number of patients achieving the F-VASI 90 will be assessed at week 24, week 36, week 52 and week 72.
  4. 4. T-VASI 50, as define above, will be assessed at week 24, week 36, week 52 and week 72
  5. 5. T-VASI 75, as define above, will be assessed at week 52 and week 72
  6. 6. %CFB in FVASI and %CFB in T-VASI at week 12, week 24, week 36 and week 72 will be define
  7. 7. The Vitiligo Noticeability scale (VNS) will be used as a patient reported outcome. To assess this scale, the patient is asked to compare using a mirror his present state as compared to picture at baseline
  8. 8. The quality of life will be assessed by using VIPs (Vitiligo Impact Patient scale) short form at baseline and week 36, week 52 and week 72.
  9. 9. All the adverse events (clinical and biological) occurring over the study period will be collected with their type, grade and severity. At each visit, the investigator will record all the events since the last visit
  10. 10. The patient global impression after treatment will be measured PGIC (F/V) and PGIS (F/V) for each visit
  11. 11. The activity of the disease will be assessed between baseline and week 12, week 24, week 36, week 52 and week 72, using the VSAS score [26] determined by using at least 3 different anatomical lesional locations.
  12. 12. Response based on stabilization of disease, defined as: <15-point increase in T-VASI score between baseline and week 12, week 24, week 36, week 52 and week 72 visit.

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

Litfulo 50 mg hard capsules

PRD10837716 · Product

Active substance
Ritlecitinib
Pharmaceutical form
CAPSULE, HARD
Route of administration
ORAL
Max daily dose
100 mg milligram(s)
Max total dose
504 g gram(s)
Max treatment duration
72 Week(s)
Authorisation status
Authorised
ATC code
L04AF08 — -
Marketing authorisation
EU/1/23/1755/002
MA holder
PFIZER EUROPE MA EEIG
MA country
Norway
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
Medical condition : vitiligo

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Centre Hospitalier Universitaire De Nice

Sponsor organisation
Centre Hospitalier Universitaire De Nice
Address
4 Avenue Reine Victoria
City
Nice
Postcode
06000
Country
France

Scientific contact point

Organisation
Centre Hospitalier Universitaire De Nice
Contact name
Thierry Passeron

Public contact point

Organisation
Centre Hospitalier Universitaire De Nice
Contact name
Cynthia CAILLON

Locations

1 EU/EEA country · 5 investigational sites

By country

CountryMS statusPlanned subjectsSites
France Ongoing, recruiting 80 5
Rest of world 0

Investigational sites

France

5 sites · Ongoing, recruiting
Centre Hospitalier Universitaire De Bordeaux
Dermatology, 1 Rue Jean Burguet, Cs 11261, Bordeaux Cedex
Hospital Edouard Herriot
Dermatology, 5 Place D Arsonval, 69437, Lyon Cedex 03
Centre Hospitalier Universitaire De Nice
Dermatology, 151 Route De Saint Antoine, 06200, Nice
Centre Hospitalier Universitaire de la Réunion
Dermatology, site SUD, 97 avenue Mitterrand, La Réunion.
Assistance Publique Hopitaux De Paris
Dermatology, 51 Av Du Mal De Lattre De Tassigny, 94000, Creteil

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
France 2025-10-16 2026-04-01

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 5 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol 2025-521504-22-00 P 1.0
Protocol (for publication) D1_Protocol 2025-521504-22-00 p 0.1
Recruitment arrangements (for publication) K1_Recruitment arrangement 0.0
Subject information and informed consent form (for publication) L1_SIS and ICF Patient P 1.0
Synopsis of the protocol (for publication) D1_Protocol Synopsis 2025-521504-22-00 P 1.0

Application history

2 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-05-19 France Acceptable
2025-08-06
2025-08-06
2 SUBSTANTIAL MODIFICATION SM-1 2026-03-31 France Acceptable
2026-05-18
2026-05-18