Evaluation of serum MMP-9 as predictive biomarker for antisense therapy in Duchenne

Autor: S. de Kimpe, D. de Klerk, Monika Hiller, Jan J.G.M. Verschuuren, Annemieke Aartsma-Rus, R. Jean-Baptiste, Francesco Muntoni, Mar Tulinius, Afrodite Lourbakos, Peter Nilsson, Zaïda Koeks, K. Kozaczynska, G. Campion, Nathalie Goemans, Pietro Spitali, Burcu Ayoglu, Ron Wolterbeek, Vishna Devi Nadarajah, N. Yau, Peter A C 't Hoen, Erik H. Niks, Mojgan Reza, Hanns Lochmüller, P. de Bruijn, C. Al-Khalili Szigyarto, Irina Zaharieva
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Scientific Reports
Scientific Reports, 7
Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
Popis: Duchenne Muscular Dystrophy (DMD) is a severe muscle disorder caused by lack of dystrophin. Predictive biomarkers able to anticipate response to the therapeutic treatments aiming at dystrophin re-expression are lacking. The objective of this study is to investigate Matrix Metalloproteinase-9 (MMP-9) as predictive biomarker for Duchenne. Two natural history cohorts were studied including 168 longitudinal samples belonging to 66 patients. We further studied 1536 samples obtained from 3 independent clinical trials with drisapersen, an antisense oligonucleotide targeting exon 51: an open label study including 12 patients; a phase 3 randomized, double blind, placebo controlled study involving 186 patients; an open label extension study performed after the phase 3. Analysis of natural history cohorts showed elevated MMP-9 levels in patients and a significant increase over time in longitudinal samples. MMP-9 decreased in parallel to clinical stabilization in the 12 patients involved in the open label study. The phase 3 study and subsequent extension study clarified that the decrease in MMP-9 levels was not predictive of treatment response. These data do not support the inclusion of serum MMP-9 as predictive biomarker for DMD patients.
Databáze: OpenAIRE