Study of BLU-808 in Chronic Inducible Urticaria (CIndU) and Chronic Spontaneous Urticaria (CSU)

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorBlueprint Medicines Corporation

About this trial

This is a 2-part, proof-of-concept study to be conducted globally, designed to evaluate the safety, tolerability, clinical activity, pharmacokinetics, and pharmacodynamics of BLU-808, a wild type KIT inhibitor, in participants with CIndU (Part A) or CSU (Part B).

Eligibility criteria

Qualifiers

Part A: Confirmed diagnosis of CIndU for ≥3 months prior to Day 1 that is inadequately controlled with second generation H1-antihistamines.

Part B: Confirmed diagnosis of CSU for ≥3 months prior to Day 1 that is inadequately controlled with second generation H1-antihistamines.

Disqualifiers

Part A: Any active urticaria that may interfere with study assessments.

Part B: Participant has a clearly defined predominant cause of chronic urticaria or sole trigger such as symptomatic dermographism and cold-induced urticaria.

Part A and Part B: Any other skin disease associated with chronic itching or angioedema that might influence the study evaluations and results, skin diseases associated with only wheals and no itch, or autoinflammatory diseases with urticarial lesions.

Part A and Part B: Significant medical, psychiatric, or surgical conditions, or physical findings that may affect participant safety, study drug metabolism, study participation, or assessment of study results.

Trial design

Treatments tested in this trial

  • BLU-808
  • Placebo

Treatment groups

105 Participants
are divided into 3 treatment groups