ArticleBMJ open2016
Regulatory approval of pharmaceuticals without a randomised controlled study: analysis of EMA and FDA approvals 1999-2014.
Article in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 7 of them syntheses that pooled it.
What it found
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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.
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Who cites it
74 citing papers in PubMed, 7 syntheses or guidelines pooled it, 187 citations in OpenAlex.
- Use of external control arms in immune-mediated inflammatory diseases: a systematic review.BMJ open · 2023Pooled it
- Strength of clinical evidence leading to approval of novel cancer medicines in Europe: A systematic review and data synthesis.Pharmacology research & perspectives · 2021Pooled it
- Guidance for the Harmonisation and Improvement of Economic Evaluations of Personalised Medicine.PharmacoEconomics · 2021Pooled it
- Pooled it
- Balancing early access with uncertainties in evidence for drugs authorized by prospective case series - systematic review of reimbursement decisions.British journal of clinical pharmacology · 2018Pooled it
- Economic Evaluations of Pharmaceuticals Granted a Marketing Authorisation Without the Results of Randomised Trials: A Systematic Review and Taxonomy.PharmacoEconomics · 2017Pooled it
- Pooled it
- The lack of head-to-head randomised trials and the consequences for patients and national health service: The case of non-small cell lung cancer.European journal of clinical pharmacology · 2024Trial
- Trial
- Comparing g-computation, propensity score-based weighting, and targeted maximum likelihood estimation for analyzing externally controlled trials with both measured and unmeasured confounders: a simulation study.BMC medical research methodology · 2023Trial
- Using Electronic Health Records to Derive Control Arms for Early Phase Single-Arm Lung Cancer Trials: Proof-of-Concept in Randomized Controlled Trials.Clinical pharmacology and therapeutics · 2020Trial
- A Frequentist Approach Using Weighted Estimating Equations for Survival Analysis of Randomized Controlled Trial With External Control Arm.Biometrical journal. Biometrische Zeitschrift · 2026Article
- Constructing an External Control Arm Using the French REALYSA Cohort to Replicate Outcomes of a Randomized Trial Arm in Advanced Hodgkin Lymphoma.Clinical pharmacology and therapeutics · 2026Article
- Powering RCTs for Marginal Effects With GLMs Using Prognostic Score Adjustment.Statistics in medicine · 2026Article
- An efficient single-arm Bayesian adaptive trial algorithm to evaluate de-intensified oncologic treatment.Trials · 2025Article
- Article
- Challenges and Criteria for Single-Arm Trials Leading to an Added Benefit in German Health Technology Assessments.PharmacoEconomics · 2025Article
- Accounting for Misclassification of Binary Outcomes in External Control Arm Studies for Unanchored Indirect Comparisons: Simulations and Applied Example.Statistics in medicine · 2025Article
- The role and value of real-world evidence in health technology decision-making in France, Germany, Italy, Spain, and the UK: insights on external control arms.International journal of technology assessment in health care · 2025Review
- On the use of external controls in clinical trials.Journal of the National Cancer Institute. Monographs · 2025Article
14 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe efficacy of pharmaceuticals is most often demonstrated by randomised controlled trials (RCTs); however, in some cases, regulatory applications lack RCT evidence.
objectiveTo investigate the number and type of these approvals over the past 15 years by the European Medicines Agency (EMA) and the US Food and Drug Administration (FDA).
methodsDrug approval data were downloaded from the EMA website and the 'Drugs@FDA' database for all decisions on pharmaceuticals published from 1 January 1999 to 8 May 2014. The details of eligible applications were extracted, including the therapeutic area, type of approval and review period.
resultsOver the period of the study, 76 unique indications were granted without RCT results (44 by the EMA and 60 by the FDA), demonstrating that a substantial number of treatments reach the market without undergoing an RCT. The majority was for haematological malignancies (34), with the next most common areas being oncology (15) and metabolic conditions (15). Of the applications made to both agencies with a comparable data package, the FDA granted more approvals (43/44 vs 35/44) and took less time to review products (8.7 vs 15.5 months). Products reached the market first in the USA in 30 of 34 cases (mean 13.1 months) due to companies making FDA submission before EMA submissions and faster FDA review time. DISCUSSION: Despite the frequency with which approvals are granted without RCT results, there is no systematic monitoring of such treatments to confirm their effectiveness or consistency regarding when this form of evidence is appropriate. We recommend a more open debate on the role of marketing authorisations granted without RCT results, and the development of guidelines on what constitutes an acceptable data package for regulators.
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Registered trials
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.