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Merck Presents Late Breaking Clinical Data from Phase II Trial of Sprifermin for Osteoarthritis Disease Modification

Merck
Posted on: 06 Nov 17

Late-breaking presentation at the 2017 American College of Rheumatology/Association of Rheumatology Health Professionals Annual Meeting (ACR/ARHP) provides data on cartilage thickness in patients with knee osteoarthritis

Additional data at ACR/ARHP highlights the momentum of the company’s clinical programs in systemic lupus erythematosus (SLE), osteoarthritis (OA), rheumatoid arthritis (RA) and fibrotic diseases 

Darmstadt, Germany, November 4, 2017 – Merck, a leading science and technology company, today announced results of the two-year primary analysis of FORWARD, a five-year, multicenter Phase II study of sprifermin in patients with knee OA.

“We are highly encouraged by the results of the FORWARD trial, in which sprifermin showed an increase in cartilage thickness in patients with osteoarthritis,” said Luciano Rossetti, Executive Vice President, Global Head of Research & Development at the biopharma business of Merck. “We remain steadfast in our resolve to bring new therapies to areas of high unmet medical need such as this, and these phase II data are a testament to our commitment.”

The study of 549 patients met its primary endpoint, demonstrating statistically- significant, dose-dependent increases in MRI total femorotibial joint cartilage thickness from baseline in the two sprifermin groups receiving the highest doses as compared with the placebo group after the two-year treatment period (+0.03 mm with 100µg sprifermin every six months vs. -0.02 mm with placebo, p<0.001; +0.02 mm with 100µg sprifermin every twelve months vs. -0.02 mm with placebo, p<0.001). Demonstration of an increase in cartilage thickness as opposed to a delay in decreasing cartilage thickness has not been previously reported. The correlation of these changes with clinical endpoints is being evaluated.

"Osteoarthritis of the knee can make it challenging for sufferers to perform everyday activities, such as walking or climbing stairs, and there is a high unmet need for disease-modifying treatment options,” said Dr. Marc C. Hochberg, primary investigator of the FORWARD study and Division Head, Rheumatology and Clinical Immunology, University of Maryland School of Medicine. “These data suggest sprifermin may not only prevent decline in cartilage thickness compared with placebo, but may also increase cartilage thickness in patients with knee osteoarthritis."

Secondary endpoints included changes in cartilage thickness as measured by MRI in the medial and lateral compartments, as well as changes in the Western Ontario and McMaster Universities Arthritis Index (WOMAC) score over two years. Statistically significant treatment effects of increased cartilage thickness were observed in the medial and lateral femorotibial compartments, including the central medial and central lateral regions, in the highest sprifermin dose group. Total WOMAC scores decreased (indicating less symptoms) by approximately 50 percent compared to baseline in all treatment groups, including placebo.

There was no detectable systemic exposure following the intra-articular injections of sprifermin. Treatment-emergent adverse events were balanced between treatment groups, with musculoskeletal and connective tissue disorders being the most common.

The results will be presented in a late-breaking oral presentation, “Efficacy and Safety of Intra-Articular Sprifermin in Symptomatic Radiographic Knee Osteoarthritis: Results of the 2-Year Primary Analysis from a 5-Year Randomised, Placebo-Controlled, Phase II Study” at the 2017 ACR/ARHP Annual Meeting in San Diego, U.S., on Tuesday, November 7, at 4:30 p.m. PT.

The company is presenting a total of 11 abstracts at ACR/ARHP, highlighting the momentum of its various clinical programs in Immunology. Other data of note includes an oral presentation on a phase II post-hoc study analysis of atacicept for SLE patients with high disease activity. In the analysis of ADDRESS II, a 24-week, randomized, placebo-controlled Phase IIb study of 306 people, those who had high disease activity at baseline had three- to five- times the odds of attaining low disease activity at 24 weeks when treated with atacicept 150mg dose (n=51) as compared to when treated with placebo (n=52).

Editor's Details

Mike Wood
PharmiWeb.com
www.pharmiweb.com
editor@pharmiweb.com

Last updated on: 06/11/2017

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