Many cancer therapies increase the risk of atrial fibrillation, but this is underreported in clinical trials, and so oncologists may underestimate the risk of this adverse event.
Leukemia: New Adverse Event With PARP Inhibitors in Cancer medscape.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from medscape.com Daily Mail and Mail on Sunday newspapers.
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Although rare, poly-ADP ribose polymerase (PARP) inhibitors were associated with an increased risk for myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML), and occurred even after brief drug exposure, researchers reported.
A systematic review and meta-analysis of 18 randomized clinical trials comparing PARP inhibitors to placebo control in adults revealed more than double the risk for MDS and AML (Peto odds ratio [OR] 2.63, 95% CI 1.13-6.14,
P=0.026) with PARP inhibitors, reported Joachim Alexandre, MD, of Caen University Hospital, France, and colleagues.
All cases were reported in ovarian cancer trials. Writing in the
Lancet Haematology, the researchers said this could be explained by these trials having the longest follow-up compared with other tumor types