Trial reportBioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy2020
Long-term Efficacy, Safety, and Immunogenicity of the Infliximab (IFX) Biosimilar, PF-06438179/GP1111, in Patients with Rheumatoid Arthritis After Switching from Reference IFX or Continuing Biosimilar Therapy: Week 54-78 Data From a Randomized, Double-Blind, Phase III Trial.
Trial report in BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02222493 (A Phase 3 Randomized, Double-blind Study Assessing The Efficacy And Safety Of Pf-06438179 And Infliximab In Combination With Methotrexate In Subjects With Moderately To Severely Active Rheumatoid Arthritis Who Have Had An Inadequate Response To Methotrexate), which is not on this map. Cited by 10 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Phase 3 Randomized, Double-blind Study Assessing The Efficacy And Safety Of Pf-06438179 And Infliximab In Combination With Methotrexate In Subjects With Moderately To Severely Active Rheumatoid Arthritis Who Have Had An Inadequate Response To Methotrexate
Who cites it
10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 16 citations in OpenAlex.
- Blood-test monitoring strategies for patients established on immune-suppressing drugs: a mixed-methods study.Health technology assessment (Winchester, England) · 2026Pooled it
- Safety outcomes when switching between biosimilars and reference biologics: A systematic review and meta-analysis.PloS one · 2023Pooled it
- Safety outcomes in 2132 Danish patients with inflammatory arthritis treated with biosimilar infliximab (GP1111) in routine care.Therapeutic advances in musculoskeletal disease · 2025Article
- Efficacy, Safety, and Cost-Effectiveness of the Infliximab Biosimilar GP-1111 in Patients with Inflammatory Bowel Disease Who Underwent a Nonmedical Switch: A Prospective Cohort Study.Biologics : targets & therapy · 2025Article
- Biosimilars for the Treatment of Moderate to Severe Chronic Plaque Psoriasis.Psoriasis (Auckland, N.Z.) · 2025Review
- Assessing MAPPs assay as a tool to predict the immunogenicity potential of protein therapeutics.Life science alliance · 2024Article
- Maximizing the success of biosimilar implementation.Nature reviews. Rheumatology · 2023Article
- Efficacy and Safety of CMAB008 Compared with Innovator Infliximab in Patients with Moderate-to-Severe Rheumatoid Arthritis Receiving Concomitant Methotrexate: A Randomized, Double-blind, Multi-center, Phase III Non-inferiority Study.Rheumatology and therapy · 2023Article
- Use of multibiomarker disease activity scores in biosimilarity studies for the treatment of patients with rheumatoid arthritis.RMD open · 2022Article
- Regulatory Evaluation of Biosimilars: Refinement of Principles Based on the Scientific Evidence and Clinical Experience.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 9 institutions in 6 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveOur objective was to evaluate the long-term efficacy, safety, and immunogenicity of the infliximab biosimilar, PF-06438179/GP1111 (PF-SZ-IFX), in patients with rheumatoid arthritis (RA) who continued biosimilar treatment throughout 78 weeks or who switched from reference infliximab (Remicade
methodsIn this phase III, double-blind, active-controlled study, patients with moderate-to-severe active RA were initially randomized to PF-SZ-IFX or IFX-EU, each with methotrexate (treatment period [TP] 1; N = 650). At week 30, patients receiving PF-SZ-IFX continued PF-SZ-IFX; patients receiving IFX-EU were re-randomized to continue IFX-EU or switch to PF-SZ-IFX (TP2; n = 566). From weeks 54 to 78, all patients received open-label treatment with PF-SZ-IFX (TP3; n = 505). Efficacy, safety, and immunogenicity data were analyzed during TP3.
resultsEfficacy was sustained and comparable across groups at week 78, with American College of Rheumatology criteria for ≥ 20% clinical improvement response rates of 75.9% (biosimilar group), 77.8% (week 30 switch group), and 68.3% (week 54 switch group). The incidence of treatment-emergent adverse events was 28.9%, 29.4%, and 30.2%, respectively. The proportion of patients who were antidrug antibody (ADA) positive and neutralizing antibody positive (as a percentage of ADA-positive patients) was stable and comparable between groups.
conclusionsResults to week 78 continue to support the efficacy, safety, and immunogenicity of PF-SZ-IFX in patients with moderate-to-severe active RA. There were no clinically meaningful differences between groups, independent of a single treatment transition from IFX-EU to PF-SZ-IFX at week 30 or week 54. TRIAL REGISTRATION NUMBER: NCT02222493.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.