Phase 3 trial of lenabasum for Dermatomyositis now recruiting

DETERMINE, a Phase 3 trial designed to evaluate the efficacy and safety of lenabasum for the treatment of adults with dermatomyositis, is now recruiting at the University of Pennsylvania. Additional locations will be announced over time.

This is a Phase 3 multicenter, double-blind, randomized, placebo-controlled study. Approximately 150 subjects will be enrolled in this study at about 60 sites in North America, Europe, and Asia. The planned duration of treatment with this study drug is 52 weeks.

In December, Corbus Pharmaceuticals announced the start of DETERMINE, a Phase 3 trial designed to evaluate the efficacy and safety of lenabasum for the treatment of adults with dermatomyositis.

Some important highlights of this study are below:

  • DETERMINEis a double-blind, placebo-controlled 1-year study designed to test the efficacy and safety of lenabasum in approximately 150 adults with dermatomyositis (DM).
  • Primary efficacy outcome: Total Improvement Score (TIS) at Week 52 (American College of Rheumatology (ACR) / European League Against Rheumatism (EULAR) 2016 Total Improvement Score (TIS) in Adult Dermatomyositis & Polymyositis)
  • Secondary efficacy outcome: Change from Baseline in the Cutaneous Dermatomyositis Activity and Severity index (“CDASI”) activity score at Week 52
  • If the efficacy data from DETERMINE are positive and the safety profile continues to be favorable, Corbus intends to approach regulatory authorities about a registration package for lenabasum for treatment of DM.

If you are an adult with dermatomyositis and are interested in participating in the study, visit

Check out full study details and contact information on the clinical trial page at



Myositis Support and Understanding Association (MSU) is a patient-centered, all-volunteer 501(c)(3) nonprofit organization Empowering the Myositis Community. Founded by Myositis patients, for Myositis patients, MSU provides education, support, advocacy, access to research and clinical trial matching, and need-based financial assistance.

View more information: Myositis Support


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