Evidence map›Paper›PMID 25967989›Full record

ArticleBMJ open2015

Health Canada's use of its priority review process for new drugs: a cohort study.

Joel Lexchin

Erratum issuedAbstract read
In one paragraph

Article in BMJ open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. Article
  2. Fear of missing out: Drug availability in the United States vs Canada.Journal of managed care & specialty pharmacy · 2024
    Article
  3. Development Time and Patent Extension for Prescription Drugs in Canada: A Cohort Study.International journal of health policy and management · 2021
    Article
  4. Observational
  5. Health Canada's Proposal to Accelerate New Drug Reviews.Healthcare policy = Politiques de sante · 2020
    Article
  6. Commentary: Expedited Regulatory Review of Low-Value Drugs.Healthcare policy = Politiques de sante · 2020
    Article
  7. Review
  8. Canadian family physician Medecin de famille canadien · 2019
    Article
  9. Article
  10. Article
  11. Article
  12. Priority reviews: innovation and safety.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2017
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author.

Joel LexchinSchool of Health Policy and Management, York University, Toronto, Ontario, Canada University Health Network, Toronto, Ontario, Canada Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesPriority reviews of new drug applications are resource intensive and drugs approved through this process have a greater likelihood of acquiring a serious safety warning compared to drugs approved through the standard process. Therefore, when Health Canada uses priority reviews, it is important that it accurately identifies products that represent a significant therapeutic advance. The purpose of this study is to compare Health Canada's use of priority reviews to therapeutic ratings from two independent organisations, the Patented Medicine Prices Review Board (PMPRB) and the French drug bulletin Prescrire International, over the period 1 January 1997-31 December 2012.

designCohort study. DATA SOURCES: Annual reports of the Therapeutic Products Directorate, and the Biologics and Genetic Therapies Directorate; evaluations of therapeutic innovation from PMPRB and Prescrire International; WHO Collaborating Centre for Drug Statistics Methodology.

interventionsAssessments by PMPRB and Prescrire International treated as a gold standard for postmarket therapeutic value. PRIMARY AND SECONDARY OUTCOME MEASURES: Drug-by-drug comparison between the review status from Health Canada and the therapeutic status from PMPRB/Prescrire using κ values, and positive and negative predictive values. Analysis of the per cent of all new drug applications put into the priority review category over the 16-year period.

resultsHealth Canada approved 426 new drugs, and 345 were evaluated by PMPRB and/or Prescrire. 91 had a priority review and 52 were assessed as innovative (p=0.0003). Agreement between Health Canada and PMPRB/Prescrire was only fair (κ=0.330). The positive predictive value for Health Canada's review assignments was 36.3% and the negative predictive value was 92.5%.

conclusionsHealth Canada's assignment of a priority approval to a new drug submission is only a fair predictor of the drug's therapeutic value once it is marketed. Health Canada should review its criteria for using priority reviews.

Indexed as

Drug EvaluationDrug PrescriptionsGovernment AgenciesAdolescentAdultCanadaDrug ApprovalFemaleHumansMalePharmaceutical PreparationsTime FactorsPharmaceutical PreparationsCLINICAL PHARMACOLOGY

Identifiers

PMID25967989
PMCPMC4431066

What OpenQuestion holds

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LicenceCC BY-NC
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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.