Company: PCRX
Filing Date: 2025-08-05
Form Type: 10-Q
Source: 0001396814-25-000102
Chunk: 12

Company: Pacira BioSciences, Inc.
Filing Date: 2025-08-05
Form: 10-Q
Item: Part I, Item 2
Chunk 12
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 levels and efficient delivery of genes into cells means that thousands of doses can be produced in a single batch. As a result, we expect that any therapies built on the HCAd platform would have a commercially attractive and viable cost of goods profile.

Pacira BioSciences, Inc.  |  Q2 2025 Form 10-Q  |  Page 43

Clinical Development Programs

PCRX-201

PCRX-201 is the lead program from our HCAd platform and we believe it underscores its promise for treating common diseases given its encouraging data in OA. PCRX-201 is targeting the IL-1 pathway, which triggers inflammation in response to pathogens and cellular stress. IL-1Ra is a core regulator of this pathway and helps to keep inflammation in balance by turning off the IL-1 pathway when it’s not needed. As people get older, their bodies have a more challenging time maintaining that balance resulting in chronic IL-1-driven inflammation that eventually causes joint damage and pain. 

After injection of PCRX-201, the HCAd vector enters joint cells and turns them into factories to boost cellular IL-1Ra production, which blocks IL-1 pathway activation to reduce inflammation and pain in the knee. PCRX-201 uses an inflammation-responsive promoter to only produce IL-1Ra when needed, mimicking how the body naturally responds to inflammation. In a Phase 1 proof-of-concept study of patients with moderate to severe OA of the knee, PCRX-201 was well tolerated with improvements in knee pain observed across all doses. The study enrolled 72 patients in two three-dose cohorts: a co-administered IA steroid cohort and a cohort that did not receive a steroid. PCRX-201 was well tolerated, with efficacy observed through at least 52 weeks at all doses and cohorts. The highest level of efficacy was achieved in the co-administered steroid group, which showed a greater percentage of patients with at least a 50% improvement in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain and stiffness scores, as well as a meaningful improvement in Knee Injury and Osteoarthritis Outcomes Score (KOOS) functional assessment. In all 3 doses, over 70% of patients saw a more than 50% improvement in pain compared to baseline at week 16 and 78. PCRX-201 was well-tolerated with no serious treatment-emergent adverse events related to the treatment or procedure reported regardless of steroid pretreatment or dose