Drug or treatment

Ritlecitinib clinical trials

• 6Clinical trials
• 15Countries

Newest trials

All recruiting trials (6)

• Ritlecitinib for patchy hair loss in teens and adults with alopecia areata

  This study tests whether ritlecitinib can help people 12 and older with patchy alopecia areata who have had symptoms for 6 months to 10 years.

  Recruiting at 30 sites Phase 3 Pfizer · Encinitas, California and 37 other locations · NCT07733765

• Ritlecitinib for chronic spontaneous urticaria (chronic hives) in adults

  This trial will try daily oral ritlecitinib (50 mg or 100 mg) to see if it reduces hives and itching in adults with chronic spontaneous urticaria not controlled by antihistamines.

  Recruiting at 77 sites Phase 2 Pfizer · Phoenix, Arizona and 76 other locations · NCT07219615

• Combination of Ritlecitinib and nbUVB for Vitiligo

  This study tests if adding narrowband UVB to ritlecitinib helps treat vitiligo better than ritlecitinib alone in adults with non-segmental vitiligo.

  Recruiting at 5 sites Phase 2 Centre Hospitalier Universitaire de Nice · Nice, Alpes-Maritime and 4 other locations · NCT07152626

• Long-term ritlecitinib treatment for children with severe alopecia areata

  This study will give ritlecitinib to children who completed earlier Pfizer pediatric ritlecitinib studies to see if long-term treatment is safe and helps maintain or improve hair regrowth.

  Recruiting at 56 sites Phase 3 Pfizer · Irvine, California and 66 other locations · NCT07029828

• Testing two doses of ritlecitinib for treating alopecia areata in people aged 12 and older

  This study is testing two different doses of a new oral medication called ritlecitinib to see if it can help people aged 12 and older with significant hair loss from alopecia areata.

  Recruiting at 41 sites Phase 3 Pfizer · Birmingham, Alabama and 147 other locations · NCT06873945

• Using ritlecitinib to treat keloids and patients undergoing keloid surgery

  This study is testing if a new medication called ritlecitinib can help treat keloids in people who have them or are having surgery to remove them.

  Recruiting Phase 2 Icahn School of Medicine at Mount Sinai · New York, New York · NCT06373458

Quick answers

How many clinical trials of Ritlecitinib are recruiting right now?

6, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.

Where are these trials running?

In 15 countries. The most sites are in United States (5 trials), China (4 trials), Japan (4 trials), Canada (3 trials), Poland (3 trials). Each study page lists its sites and which ones are recruiting.

What phases are they in?

Phase 2: 3, Phase 3: 3. Trials with no phase listed are usually device, behavioural or observational studies.

How do I join one?

Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.

Find the studies that fit you

A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.

Describe your situation →