Evidence map›Paper›PMID 32910420›Full record

ReviewAdvances in therapy2020

The Challenges of Switching Therapies in an Evolving Multiple Biosimilars Landscape: A Narrative Review of Current Evidence.

Brian G Feagan, Mona Marabani, Jashin J Wu, Freddy Faccin, Claire Spronk, Gilberto Castañeda-Hernández

Open access · hybridAbstract readReview
In one paragraph

Review in Advances in therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 pooled it
2.1field-weighted citation impact, top 12% of its field
1 · What the graph read from 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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 3 syntheses or guidelines pooled it, 42 citations in OpenAlex.

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  9. Evaluation of rheumatologists' knowledge of biosimilars.Advances in rheumatology (London, England) · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 4 countries.

Brian G FeaganDepartment of Medicine, Western University, Robarts Clinical Trials, St. Joseph's Health Care, London, ON, Canada. brian.feagan@robartsinc.com.ORCID 0000-0002-6914-3822
Mona MarabaniDepartment of Medicine, Canterbury Hospital, Sydney, NSW, Australia.
Jashin J WuDermatology Research and Education Foundation, Irvine, CA, USA.
Freddy FaccinAbbVie Inc., North Chicago, IL, USA.
Claire SpronkAbbVie Inc., North Chicago, IL, USA.
Gilberto Castañeda-HernándezDepartamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico.
AbbVie (United States) · USCanterbury Hospital · AUDermatology Research and Education Foundation · USInstituto Politécnico Nacional · MXWestern University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

With the increasing availability of biosimilars, the practice of switching therapies for non-medical reasons between an originator biologic and an analogous biosimilar has become more common. The evidence to support this practice mostly comes from single-switch randomized controlled trials (RCTs) and real-world (RW) evidence studies. However, as more biosimilars of the same originator enter the market, multiple switching events between originators and biosimilars is becoming a reality, despite limited evidence to support the efficacy and safety of such practice. Some countries have established guidelines, policies, or laws related to interchangeability and/or automatic substitution, whereas others have left these practices unregulated or controlled by other components of the healthcare system. Collectively, guidelines on single non-medical switching are often vague, with even less focus given to multiple non-medical switching, leaving this practice mostly unregulated. This narrative review will first discuss the current regulatory perspectives on non-medical switching and challenges associated with switching therapies, particularly with the availability of multiple biosimilars. We will then review the current evidence from RCTs and RW studies in the light of three different multiple-switch scenarios currently taking place in clinical practice: switching between an originator and a single biosimilar, switching between biosimilars of the same originator, and the clinical practice of switching back to the originator (i.e., switchbacks) after a failure of the initial non-medical switch to the analogous biosimilar.

Indexed as

Biosimilar PharmaceuticalsHumansBiosimilar PharmaceuticalsBiosimilarMultiple switchNon-medical switchingOriginatorSwitchback

Identifiers

PMID32910420
PMCPMC7547992
OpenAlexW3085906625

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.