A Phase 2B/3, Randomized, Double-Blind, Placebo-Controlled, 2-Arm, Efficacy, and Safety Study in Prurigo Nodularis with Nalbuphine ER Tablets for Pruritis Relief Through Itch Scratch Modulation (PRISM Study)

Main inclusion criteria:

  1. Individuals diagnosed with generalized PN, defined as the presence of ≥ 10 pruriginous nodules, involving at least 2 distinct anatomical areas: for example, either 2 limbs; or a single limb and some axial portion of the body.
  2. If there is any history of a primary pruritic skin condition other than PN, that condition must have been inactive for at least 6 months prior to screening.


Principal Investigator(s)
Dr. Jonathan Silverberg
Contact Phone Number
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