Evidence map›Paper›PMID 41129081›Full record

ArticleTherapeutic innovation & regulatory science2026

Strategic Drivers Behind Early Withdrawal of Orphan Designations in the EU: A Retrospective Analysis (2000-2024).

Luísa Bouwman, Micael Castanheira, Georges Siotis

Abstract read
In one paragraph

Article in Therapeutic innovation & regulatory science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Luísa BouwmanPharmacist specialist in Regulatory Affairs, Utrecht, The Netherlands. luisa.bouwman@gmail.com.
Micael CastanheiraFonds National de la Recherche Scientifique (FNRS) and European Centre for Advanced Research in Economics and Statistics (ECARES), Université Libre de Bruxelles, Brussels, Belgium.
Georges SiotisEconomics Department, University Carlos III de Madrid, Madrid, Spain.

Funding

Agencia Estatal de Investigación CEX2021-001181-MComunidad de Madrid EPUC3M11 (V PRICIT)
6 · The paper itself

Abstract

purposeThe orphan legislation came into force in the European Union (EU) in 2000, providing incentives for the development of orphan medicines. To be eligible for incentives, the applicant needs to apply for an orphan designation (OD). However, at any time, the marketing authorisation holder (MAH) can request the removal of the OD. The possible motives underpinning premature removal of OD have been the subject of speculation. Our aim is to study every early OD removal for the orphan medicinal products (OMPs) approved in the EU between 2000 and 2024 and determine the main reasons behind this phenomenon.

methodsWe identified all the orphan medicines approved between 2000 and 2024. We considered approval date by the European Commission (EC), orphan designation (OD) status, company name, active substance name, trade name, ATC code and Therapeutic Area, and the date of the removal of the OD. Information on the OD withdrawal was cross-checked with the documents on the EMA website, and the legal status of the patent and supplementary protection certificates (SPC) was checked at the European Patent Register.

resultsDuring the period 2000-2024, 285 OMPs were approved by the EC. Overall, 41 (11.8%) orphan designations were prematurely removed, corresponding to 23 different OMPs.

conclusionsThree main motives for the early removal of the OD were identified: lack of clinical evidence supporting the significant benefit for the new indication proposed, the companies' preference towards SPC extensions for the paediatric indication (instead of the two additional years of marketing exclusivity), or the new therapeutic indication added is not rare. There is no evidence of commercial "pay to enter" agreements between pharmaceutical companies.

Indexed as

Drug ApprovalOrphan Drug ProductionEuropean UnionHumansRetrospective StudiesIncentivesOrphan designationsOrphan medicinesOrphan regulation

Identifiers

PMID41129081
PMCPMC12753528

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.