Evidence map›Paper›PMID 23947946›Full record

SynthesisOrphanet journal of rare diseases2013

Systematic review of available evidence on 11 high-priced inpatient orphan drugs.

Tim A Kanters, Caroline de Sonneville-Koedoot, W Ken Redekop, Leona Hakkaart

Abstract readSystematic Review
In one paragraph

Synthesis in Orphanet journal of rare diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
–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

15 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. RD-LIVES: A Living Evidence Synthesis System for Rare Disease Treatment Efficacy and Safety.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2025
    Article
  5. Article
  6. Article
  7. Patient access to orphan drugs in France.Orphanet journal of rare diseases · 2019
    Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Impact of orphan drugs on Latvian budget.Orphanet journal of rare diseases · 2016
    Article
  13. Article
  14. Review
  15. Article
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

4 authors.

Tim A KantersInstitute for Medical Technology Assessment, Department of Health Policy & Management, Erasmus University Rotterdam, Burgemeester Oudlaan 50, PO Box 1738, 3000DR Rotterdam, The Netherlands. kanters@bmg.eur.nl
Caroline de Sonneville-Koedoot
W Ken Redekop
Leona Hakkaart

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAttention for Evidence Based Medicine (EBM) is growing, but evidence for orphan drugs is argued to be limited and inferior. This study systematically reviews the available evidence on clinical effectiveness, cost-effectiveness and budget impact for orphan drugs.

methodsA systematic review was performed in PubMed, Embase, NHS EED and HTA databases for 11 inpatient orphan drugs listed on the Dutch policy rule on orphan drugs. For included studies, we determined the type of study and various study characteristics.

resultsA total of 338 studies met all inclusion criteria. Almost all studies (96%) focused on clinical effectiveness of the drug. Of these studies, most studies were case studies (41%) or observational studies (39%). However, for all orphan diseases at least one experimental or quasi-experimental study was found, and a randomized clinical trial was available for 60% of the orphan drugs. Eight studies described the cost-effectiveness of an orphan drug; an equal number described an orphan drug's budget impact.

conclusionsDespite the often heard claim that RCTs are not feasible for orphan drugs, we found that an RCT was available in 60% of orphan drugs investigated. Cost-effectiveness and budget impact analyses for orphan drugs are seldom published.

Indexed as

Cost-Benefit AnalysisHumansInpatientsNetherlandsOrphan Drug ProductionRandomized Controlled Trials as TopicRare Diseases

Identifiers

PMID23947946
PMCPMC3751719

What OpenQuestion holds

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Registered trials

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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.