A Study of KT-621 Administered Orally to Participants With Moderate to Severe Atopic Dermatitis
Eligible age
12–75 yrs
Accepts
All genders
Locations
12 states
Healthy volunteers
No
See if you qualify for this study
Answer a few quick questions about your location and health. Takes about a minute.
About this study
This phase 2b study is designed to evaluate the safety and efficacy of KT-621 in adult and adolescent participants with moderate-to-severe atopic dermatitis (AD), a common form of eczema. The main goals of this study are to learn how effective KT-621 is at reducing the severity and extent of AD, the safety and tolerability of KT-621, how KT-621 behaves in the body, and how the body responds to KT-621. This is a 16-week double-blind, placebo-controlled study with a 52-week open-label period.
Sponsor: Kymera Therapeutics, Inc.
You may qualify if…
- ✓ Must be 12 to 75 years of age, inclusive, at the time of signing the IAF (informed assent form) and/or ICF (informed consent form).
- ✓ Must have chronic AD that has been present for at least 3 years (for participants ≥ 18 years of age) or 1 year (for participants \< 18 years of age) before the Screening visit.
- ✓ Must have an EASI score ≥ 16 at the Screening and Baseline visits.
- ✓ Must have a vIGA-AD score ≥ 3 (scale of 0 to 4) at the Screening and Baseline visits.
- ✓ Must have at least 10% BSA of AD involvement at the Screening and Baseline visits.
- ✓ Must have a weekly average Peak Pruritus NRS value ≥ 4 at the Baseline visit.
- ✓ Must have a history within the 6 months prior to the Baseline visit of either an inadequate response to, or inability to take, topical medications for the treatment of AD.
- ✓ Must apply a stable dose of moisturizer at least twice daily for at least 7 consecutive days immediately prior to the Baseline visit. Participants should be willing to continue using moisturizer twice daily during the study.
You may not qualify if…
- ✕ Must not have an unstable course of AD (spontaneously improving or rapidly deteriorating) as determined by the Investigator in the 4 weeks before the baseline visit.
- ✕ Must not have other skin conditions, such as contact dermatitis, psoriasis, tinea corporis, or lupus erythematosus, that may interfere with study assessments.
- ✕ Must not have a clinically relevant history of respiratory, gastrointestinal (GI), renal, hepatic, hematological, lymphatic, endocrinological, neurological, cardiovascular, psychiatric, musculoskeletal, genitourinary, immunological, ophthalmological, or connective tissue diseases or disorders.
- ✕ Must not have any surgical or medical procedure planned during participation in the study.
- ✕ Must not have a history of alcohol or substance abuse within the previous 2 years.
- ✕ Must not be pregnant or breastfeeding; must not be a woman planning to become pregnant or breastfeed during the study.
- ✕ Must not have a history of lack of response to any medication targeting interleukin (IL)-4, IL-13, and/or janus kinase (JAK)- signal transducer and activator of transcription (STAT) pathways (e.g. dupilumab, tralokinumab, upadacitinib, abrocitinib) at approved doses after at least 16 weeks of therapy.
- ✕ Must not have results from clinical laboratory safety tests that are outside the local reference range at Screening.
Where it's recruiting
Birmingham
North Little Rock
Freemont · Los Angeles · Santa Monica
Delray Beach · Miami · Miramar
Normal
Indianapolis
Ann Arbor · Detroit
The Bronx
Fargo
Portland
Philadelphia
San Antonio
Source: ClinicalTrials.gov · NCT07217015 · last updated 2026-05-18