2025
			
	    
	
	
    Safety and efficacy of fenebrutinib in relapsing multiple sclerosis (FENopta): a multicentre, double-blind, randomised, placebo-controlled, phase 2 trial and open-label extension study
BAR-OR, Amit; Michal DUFEK; Hrvoje BUDINCEVIC; Jelena DRULOVIC; Mario HABEK et. al.Základní údaje
Originální název
Safety and efficacy of fenebrutinib in relapsing multiple sclerosis (FENopta): a multicentre, double-blind, randomised, placebo-controlled, phase 2 trial and open-label extension study
	Autoři
BAR-OR, Amit; Michal DUFEK (203 Česká republika, domácí); Hrvoje BUDINCEVIC; Jelena DRULOVIC; Mario HABEK; Le H HUA; Martin S WEBER; Piia THOMAS; Julie NAPIERALSKI; Maresa Caunt MITZNER; John N RATCHFORD; David CLAYTON; Christopher T HARP; Denison KURUVILLA; Qi QI; Ying-Fang CHEN; Xu YAN; Alexandra GOODYEAR a Jiwon OH
			Vydání
 Lancet Neurology, NEW YORK, Elsevier, 2025, 1474-4422
			Další údaje
Jazyk
angličtina
		Typ výsledku
Článek v odborném periodiku
		Obor
30210 Clinical neurology
		Stát vydavatele
Spojené státy
		Utajení
není předmětem státního či obchodního tajemství
		Odkazy
Impakt faktor
Impact factor: 45.500 v roce 2024
			Organizační jednotka
Lékařská fakulta
			UT WoS
001536709600001
		EID Scopus
2-s2.0-105010741329
		Klíčová slova anglicky
relapsing multiple sclerosis; fenebrutinib
		Příznaky
Mezinárodní význam, Recenzováno
		
				
				Změněno: 6. 8. 2025 10:27, Mgr. Tereza Miškechová
				
		Anotace
V originále
Background The prospect for Bruton's tyrosine kinase (BTK) inhibition to meaningfully affect relapsing multiple sclerosis has recently been questioned due to inconsistent findings in the magnitude and sustainability of the effect of BTK inhibitors on disease activity. We assessed the safety, efficacy, and CSF drug concentrations of fenebrutinib, a highly selective, noncovalent, reversible BTK inhibitor, in patients with relapsing multiple sclerosis. Methods This multicentre, double-blind, randomised, placebo-controlled, phase 2 trial (FENopta) was conducted at 18 community centres and hospitals across six countries in Europe and North America. Patients with relapsing multiple sclerosis aged 18-55 years with an Expanded Disability Status Scale (EDSS) score of 00-55, and recent documented disease activity, were randomly assigned (2:1) to oral fenebrutinib (200 mg twice daily) or placebo for 12 weeks, using permuted blocks and stratified by the presence or absence of T1 gadolinium-enhancing (Gd+) lesions on the brain MRI at screening. The randomisation sequence was generated by an interactive voice or web response system and both patients and investigators were masked to treatment allocation. Participants could enter an optional open-label extension study to receive fenebrutinib for up to 192 weeks. The primary efficacy endpoint was the total number of new T1 Gd+ lesions on brain MRI at weeks 4, 8, and 12; with additional MRI assessments at 48-week intervals during the open-label extension. Efficacy analyses were done on randomised patients with evaluable post-baseline MRIs; safety analyses used the safety-evaluable population. This study is registered with ClinicalTrials.gov, NCT05119569, and EudraCT, 2021-003772-14; recruitment is closed and the trial is ongoing. Findings Between March 1, 2022 and March 29, 2023, 109 patients with relapsing multiple sclerosis were randomly assigned treatment: 73 received fenebrutinib and 36 received placebo. 106 patients had evaluable post-baseline brain MRI scans and were assessed for efficacy in the fenebrutinib group (n=70) and placebo group (n=36). The combined number of new T1 Gd+ lesions at weeks 4, 8, and 12 were 0077 (95% CI 0043-0135) in the fenebrutinib group and 0245 (0144-0418) in the placebo group (69% relative reduction [95% CI 34-85]; p=00022). During the open-label extension, through week 48, the unadjusted annualised relapse rate was 004 and 95 (96%) of 99 patients were relapse-free. During the double-blind treatment phase, the most common adverse events that were more frequent in the fenebrutinib group than in the placebo group were hepatic enzyme elevations (four [6%] vs 0), headache (three [4%] vs one [3%]), and nasopharyngitis (two [3%] vs 0); no serious adverse events or deaths occurred. Interpretation Fenebrutinib was well tolerated and exerted an early, robust, and sustained effect of limiting new focal brain lesions. Further studies are needed to better characterise the safety and efficacy of fenebrutinib on both relapsing multiple sclerosis and non-relapsing progressive multiple sclerosis. Funding F. Hoffmann-La Roche. Copyright (c) 2025 Elsevier Ltd. All rights reserved, including those for text and data mining, AI training, and similar technologies.