A new class of oral drugs for treating the most common type of breast cancer, known as cyclin-dependent kinase (CDK) inhibitors, appears to have fewer adverse events and side effects for most patients compared to other treatments. There are 2 CDK inhibitors currently on the market: Ibrance (palbociclib), approved in February 2015, and Kisqali (ribociclib), which was just approved in March. Both are used to treat hormone receptor-positive (HR+) metastatic breast cancer. A third CDK inhibitor, abemaciclib, is in late-stage development. Researchers examined all publicly available trials for the 3 drugs. The most common side effect was low white blood cells, a condition known as neutropenia that can lead to infection, though it was seen less in abemaciclib. However, neutropenia was usually temporary or resolved with a dose reduction. Other, more common side effects seen with the medications were diarrhea and fatigue. Less common side effects observed were nausea and alopecia (hair loss), though these were mild and treated through a dose reduction or a break from the drug. Posted July 14, 2017. Via The Oncologist.
Children exposed to antidepressants during pregnancy may have a slightly higher risk of developing autism than children of mothers with mental illness who didn’t receive the drugs. Researchers, however, stress that the absolute risk of autism was small, so the results should not be considered alarming. A team at the University of Bristol (UK) analyzed data from 254,610 individuals aged 4-17 of which 5,378 had autism. Of the 3,342 children exposed to antidepressants during pregnancy, 4.1% (136) had a diagnosis of autism compared with 2.9% (353) in 12,325 children not exposed to antidepressants whose mothers had a history of a psychiatric disorder. Researchers noted that overall, 95% of women who took antidepressants did not have a child with autism. An accompanying editorial noted that the results should not dissuade women with depression from using antidepressants in pregnancy since untreated depression can lead to “ substantial health consequences.” Posted July 19, 2017. Via The BMJ.
The FDA has approved a new hepatitis C (HCV) medication, Vosevi. The drug is actually a combination of two existing anti-viral treatments, sofosbuvir and velpatasvir (sold as Epclusa), and a new drug, voxilaprevir. Vosevi is for patients with HCV without liver disease (cirrhosis) or with a mild form of cirrhosis. Results from 2 late-stage trials demonstrated that 96-97% of patients who received Vosevi had no HCV detected in their blood 12 weeks after finishing treatment, an indication the infection has been cured. The most common side effects in patients taking Vosevi were headache, fatigue, diarrhea and nausea. Posted July 18, 2017. Via FDA.
Alanna McCatty is a recent graduate of Pace University with a degree in communications. At MedShadow, she reports on new findings and research on the side effects of prescription drugs.