An open-label extension study to demonstrate long-term safety and efficacy of ABP 501 in patients with rheumatoid arthritis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023728%3A_____%2F19%3AN0000003" target="_blank" >RIV/00023728:_____/19:N0000003 - isvavai.cz</a>

Result on the web

<a href="https://arthritis-research.biomedcentral.com/articles/10.1186/s13075-019-1857-3" target="_blank" >https://arthritis-research.biomedcentral.com/articles/10.1186/s13075-019-1857-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s13075-019-1857-3" target="_blank" >10.1186/s13075-019-1857-3</a>

Result language

angličtina

Original language name

An open-label extension study to demonstrate long-term safety and efficacy of ABP 501 in patients with rheumatoid arthritis

Original language description

BackgroundABP 501 was evaluated in a phase 3 single-arm, open-label extension (OLE) study to collect additional safety and efficacy data in patients with rheumatoid arthritis (RA).MethodsSubjects completing the final visit in the parent phase 3 randomized, double-blind, controlled equivalence study comparing the efficacy and safety of the biosimilar ABP 501 with adalimumab reference product (RP) were enrolled in this open-label extension (OLE) study. All subjects received 40mg ABP 501 every other week for 68weeks. Key safety endpoints included treatment-emergent adverse events (TEAEs), serious adverse events (SAEs), and anti-drug antibody (ADA) incidences. Efficacy endpoints included ACR20 (at least 20% improvement in American College of Rheumatology core set measurements from baseline) and Disease Activity Score 28-joint count C-reactive protein (DAS28-CRP) change from baseline.ResultsAmong 466/467 patients treated with ABP 501, 229 transitioned from the ABP 501 arm of the parent study (ABP 501/ABP 501) and 237 from the adalimumab RP arm (RP/ABP 501); 412/467 (88.2%) patients completed the study. The overall TEAE incidence was 63.7% (297/466); grade3 TEAE incidence was 9.0% (42/466). The incidence of TEAEs leading to discontinuation of investigational product was 3.6% (17/466). The SAE incidence was 9.9% (46/466). Overall, 18.2% (85/466) of subjects developed binding ADAs and 6.9% (32/466) developed neutralizing ADAs in the OLE study. The ACR20 response rate was 73.3% (340/464 subjects) at OLE baseline, and 78.8% (327/415 subjects) at week 70 of the OLE study. The overall mean DAS28-CRP change from the parent study baseline was -2.25 at the OLE study baseline (n=440), -2.36 at week 4 (n=463), -2.41 at week 24 (n=450), -2.55 at week 48 (n=433), and -2.60 at week 70 (n=412). Efficacy was maintained throughout the study.ConclusionsEfficacy previously demonstrated in the parent study was maintained in this OLE study with no new safety findings. Long-term safety, immunogenicity, and efficacy were similar in the ABP 501/ABP 501 and RP/ABP 501 groups. The single switch from RP to ABP 501 did not impact immunogenicity.Trial registrationClinicalTrial.gov, NCT02114931

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30226 - Rheumatology

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ARTHRITIS RESEARCH & THERAPY

ISSN

1478-6354

e-ISSN

1478-6362

Volume of the periodical

21

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

Art. Nr 84

UT code for WoS article

000463620300001

EID of the result in the Scopus database

2-s2.0-85063805415