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A Study to Learn About Medicine Called Ritlecitinib in Children Aged Between 6 to 12 Years With Severe Alopecia Areata
A Study to Learn About Medicine Called Ritlecitinib in Children Aged Between 6 to 12 Years With Severe Alopecia Areata

NCT07029711

Active Not RecruitingPhase 3

Sponsor: Pfizer

Conditions: Severe Alopecia Areata

Interventions: Ritlecitinib higher dose, Ritlecitinib lower dose, Placebo

Countries: United States, China, Czechia, France, Italy, Japan, Poland, Spain

The purpose of this study is to learn about the safety and effects of the study medicine (called ritlecitinib) for the possible treatment of severe alopecia areata. Alopecia areata is a condition that causes hair loss. This study is seeking participants who have: * at least 50% scalp hair loss due to alopecia areata. * received varicella vaccination (2 doses) or have been infected by varicella zoster virus before based on blood test reports. * history of clinical response failure to alopecia areata treatment (for children in EU/UK only). All participants in this study will receive either study medicine (ritlecitinib) or placebo. A placebo does not have any medicine in it but looks just like the medicine being studied. One-third of participants will receive ritlecitinib higher dose, one-third participants will receive ritlecitinib lower dose, and one-third participants will receive placebo. The study medicine is a capsule that is taken by mouth. It is taken once each day at home. The study will compare the experiences of participants receiving ritlecitinib to participants receiving placebo. This will help see if ritlecitinib is safe and effective. Participants will take part in this study for 6 months. During this time, they will have 8 study visits at the study clinic. The study team will also call participants about 8 times over the phone.

Eligibility overview

Sex: ALL

Age: 6 Years to 11 Years

Healthy volunteers: No

Study type: INTERVENTIONAL

Eligibility criteria
Inclusion Criteria:

* A diagnosis of AA (including alopecia totalis (AT) and alopecia universalis (AU)) with at least 50% scalp hair loss due to AA (ie, SALT score of ≥50) at both screening and baseline visits, without evidence of terminal hair regrowth within the previous 12 months.
* For study participants in the EU/UK only: History of clinical response failure to AA treatment (such as topical, off-label pharmacologic, or hairpiece prosthetics)
* Documented evidence of having received varicella vaccination (2 doses), OR evidence of prior exposure to varicella zoster virus (VZV) based on serological testing (ie, a positive VZV Immunoglobulin G (IgG) antibody (Ab) result) at screening.

Exclusion Criteria:

* Other (non-AA) types of alopecia, including any known congenital cause of AA.
* Pre-existing hearing loss.
* Any present or history of malignancies or lymphoproliferative disorder such as Epstein-Barr virus (EBV) related lymphoproliferative disorder, history of lymphoma, history of leukemia, or signs and symptoms suggestive of current lymphatic or lymphoid disease.
* Clinically significant depression per PROMIS Parent Proxy Short Form - Depressive symptoms (T-score ≥70).
* Any evidence of untreated or inadequately treated active or latent Mycobacterium tuberculosis (TB) infection; history (one or more episodes) of severe or serious cytomegalovirus (CMV) infection, herpes zoster (shingles) or disseminated herpes simplex; infection with hepatitis B virus (HBV) or hepatitis C virus (HCV).
* Vaccination with live attenuated replication-competent vaccine within 6 weeks of first dose of study intervention.
Locations (80)
  • Irvine, California, United States
  • Santa Ana, California, United States
  • Aurora, Colorado, United States
  • Washington D.C., District of Columbia, United States
  • Miami, Florida, United States
  • Evanston, Illinois, United States
  • Skokie, Illinois, United States
  • Indianapolis, Indiana, United States
  • Marriottsville, Maryland, United States
  • Waterford, Michigan, United States
  • Omaha, Nebraska, United States
  • Omaha, Nebraska, United States
  • Papillion, Nebraska, United States
  • Albuquerque, New Mexico, United States
  • Albuquerque, New Mexico, United States
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  • Portland, Oregon, United States
  • Hershey, Pennsylvania, United States
  • Charleston, South Carolina, United States
  • Charleston, South Carolina, United States
  • Austin, Texas, United States
  • Corpus Christi, Texas, United States
  • El Paso, Texas, United States
  • Pflugerville, Texas, United States
  • San Antonio, Texas, United States
  • Milwaukee, Wisconsin, United States
  • Milwaukee, Wisconsin, United States
  • Beijing, Beijing Municipality, China
  • Beijing, Beijing Municipality, China
  • Beijing, Beijing Municipality, China
  • + 50 more on CT.gov