dm+d
Unassigned
New Medicines
Primary and secondary immune thrombocytopenia
Information
New molecular entity
Principia
Principia
Development and Regulatory status
Phase II Clinical Trials
Phase II Clinical Trials
Phase III Clinical Trials
Yes
Yes
Category
Brutons tyrosine kinase (BTK) reversible inhibitor
Annual incidence is between 2 and 3 per 100,000, and prevalence around 9 - 10 per 100,000. There is a slight bias to females (1.3:1) and age peaks below 18 and over 60 [2,3]
Primary and secondary immune thrombocytopenia
Oral
Pemphigus vulgaris (PV) and pemphigus foliaceus (PF)
Information
New molecular entity
Principia
Principia
Development and Regulatory status
Discontinued
Discontinued
Discontinued
Yes
Yes
Sep 21Development discontinued based on the PIII PEGASUS trial results [12].
Category
Brutons tyrosine kinase (BTK) inhibitor (BTK is involved in signalling pathways for most white cells)
Pemphigus vulgaris (PV) is by far the most common variant of pemphigus though this variant is rare. UK incidence is estimated to be 0.68 per 100,000 person years [2].
Pemphigus vulgaris (PV) and pemphigus foliaceus (PF)
Oral
Trial or other data
Sep 21Company announces PIII PEGASUS trial of rilzabrutinib for pemphigus failed to hit the primary endpoint (complete remission from weeks 29-37 with minimal doses of corticosteroids). The data shows there was no significant difference between rilzabrutinib and placebo. [8]