Key points
- The application to obtain marketing authorisation for dasatinib in this situation was based on data from a non-comparative trial. Additional data have become available from a randomised, non-blinded, head-to-head trial of dasatinib versus imatinib, added to chemotherapy, but bias in the comparison weakens the quality of the evidence.
- NOTHING NEW Bias in the comparison with imatinib makes the favourable results obtained for dasatinib impossible to intepret. More than two years after its authorisation, the oral liquid form of dasatinib, for children unable to swallow tablets, is still not marketed in France.
- EDITORS' OPINION Failure to demand solid evidence for marketing authorisation spells danger for patients. In March 2020, the EMA rightly urged the scientific community to conduct randomised comparative trials designed to generate robust evidence on covid-19. It would be helpful if the EMA adopted the same attitude towards other clinical situations, to better serve patients and build confidence in its work.
©Prescrire 1 January 2021
Source: "Dasatinib (Sprycel° and other brands) in children with acute lymphoblastic leukaemia" Prescrire International 2021; 30 (222): 12-13. Free.
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