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Tumour necrosis factor inhibitor monotherapy vs combination with MTX in the treatment of PsA: a systematic review of the literature

2014· review· en· 78 citations· W2146966993 on OpenAlex· 10.1093/rheumatology/keu415

Why is this work in the frame?

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

About CanadaIts subject is Canada, wherever its authors sit.

No Canadian affiliation. An affiliation-only frame — the usual design — would never have seen this work. It is one of the works that make the case for inverting the frame.

The three-model screen

all 1,000 screened works →

All three models called this out of scope.

stratum: about_only · design weight: 3321.24 (the sample is stratified; any rate computed without the weight is wrong)
Claude Opus 4.8OUT
genre: empirical
about Canada: no
confidence: high

Systematic review comparing TNF inhibitor monotherapy with combination therapy in psoriatic arthritis; uses synthesis to answer a clinical question.

GPT-5.6 (high)OUT
genre: empirical
about Canada: no
confidence: high

It synthesizes clinical evidence about psoriasis arthritis treatment, not evidence-synthesis methodology.

Grok 4.5OUT
genre: empirical
about Canada: no
confidence: high

Clinical systematic review of TNF inhibitors for PsA; synthesis answers a treatment question.

Abstract

OBJECTIVES: The aim of this study was to review the available evidence on TNF inhibitor monotherapy vs combination therapy with MTX in PsA. METHODS: A literature search was conducted up to and including October 2013 for randomized controlled trials (RCTs) and observational studies comparing TNF inhibitor monotherapy vs combination therapy with MTX in patients with PsA. Key information was extracted from the abstracts and/or full text of the articles retrieved. RESULTS: Eleven published articles and three conference abstracts were retrieved, reporting on six RCTs of four TNF inhibitors. Most RCTs found no differences in efficacy for peripheral arthritis between patients treated with or without MTX. However, the studies were not powered to answer this question. Some data suggest that concomitant MTX may reduce the progression of structural damage. No significant differences in other outcomes have been reported. Data on TNF inhibitor monotherapy vs MTX combination therapy were reported from six registries. Three registries reported that the use of concomitant MTX did not affect the efficacy of TNF inhibitor therapy. Data from three European Union registries suggest that TNF inhibitor (especially mAbs) drug survival is superior in patients taking concomitant MTX, while one Canadian registry reported no difference. CONCLUSION: Available evidence on the efficacy and safety of TNF inhibitor monotherapy vs add-on MTX therapy shows little or no improvement with combination therapy, although the use of concomitant MTX appears to prolong TNF inhibitor drug survival of mAb TNF inhibitors. Registries and observational studies have the potential to fill some of the knowledge gaps in this area.

Stored with the screening record, where it is evidence for the labels above.

The record

Venue
Lara D. Veeken
Topic
Rheumatoid Arthritis Research and Therapies
Field
Medicine
Canadian institutions
Funders
Pfizer
Keywords
MedicineConcomitantCombination therapyTNF inhibitorObservational studyInternal medicineRandomized controlled trialTumor necrosis factor alphaOncologyAdalimumab
Has abstract in OpenAlex
yes