Single-arm clinical trials that supported FDA accelerated approvals have modest effect sizes and were at high risk of bias
Copyright © 2022 Elsevier Inc. All rights reserved..
OBJECTIVE: To describe effect sizes of single-arm clinical trials that supported AA approvals.
STUDY DESIGN AND SETTING: We reviewed all the single-arm approvals granted by the FDA-AA pathway between June1992 to December2020. Two independent reviewers identified single-arm studies and extracted data from FDA Full-Medical Reviews. We performed a meta-analysis to estimate the effect sizes and compared it between studies that met post-approval FDA requirements for RCTs with those that did not.
RESULTS: From the total of 254 approvals, single arm clinical trials describing effects of 54 drugs for 72 clinical indications were evaluated. The effect size estimated was OR:2.22(CI95%:1.76-2.81) [relative risk (RR) = 1.63(95CI% 1.38-1.92)]; 53% of treatments had a lower 95% CI bound crossing the null effect. Effect size did not differ between the treatments that met the FDA requirement for conducting post-approval RCTs.
CONCLUSIONS AND RELEVANCE: Treatment effects observed in the FDA AA single-arm studies was modest and can be to ascribed to bias.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2022 |
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Erschienen: |
2022 |
Enthalten in: |
Zur Gesamtaufnahme - volume:148 |
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Enthalten in: |
Journal of clinical epidemiology - 148(2022) vom: 15. Aug., Seite 193-195 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Ribeiro, Tatiane Bomfim [VerfasserIn] |
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Links: |
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Themen: |
Accelerated approval |
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Anmerkungen: |
Date Completed 27.10.2022 Date Revised 31.10.2022 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1016/j.jclinepi.2022.01.018 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM336278101 |
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520 | |a Copyright © 2022 Elsevier Inc. All rights reserved. | ||
520 | |a OBJECTIVE: To describe effect sizes of single-arm clinical trials that supported AA approvals | ||
520 | |a STUDY DESIGN AND SETTING: We reviewed all the single-arm approvals granted by the FDA-AA pathway between June1992 to December2020. Two independent reviewers identified single-arm studies and extracted data from FDA Full-Medical Reviews. We performed a meta-analysis to estimate the effect sizes and compared it between studies that met post-approval FDA requirements for RCTs with those that did not | ||
520 | |a RESULTS: From the total of 254 approvals, single arm clinical trials describing effects of 54 drugs for 72 clinical indications were evaluated. The effect size estimated was OR:2.22(CI95%:1.76-2.81) [relative risk (RR) = 1.63(95CI% 1.38-1.92)]; 53% of treatments had a lower 95% CI bound crossing the null effect. Effect size did not differ between the treatments that met the FDA requirement for conducting post-approval RCTs | ||
520 | |a CONCLUSIONS AND RELEVANCE: Treatment effects observed in the FDA AA single-arm studies was modest and can be to ascribed to bias | ||
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