Triple negative breast cancer (TNBC), an aggressive variant of breast cancer, is characterized by lack of expression of the estrogen (ER) and progesterone receptors (PRs) and the human epidermal growth factor receptor (HER-2) that are commonly observed in other breast cancer subtypes. The TNBC subtype primarily occurs in younger women of African American or Hispanic descent and tumors tend to be high grade and initially responsive to chemotherapy. However, TNBC is characteristically aggressive with high recurrence, metastatic, and mortality rates. Treatment options are limited since the hormonal receptor and HER-2 antagonists typically used for other breast cancers are ineffective. As such, the mainstay of treatment of TNBC is traditional systemic cytotoxic chemotherapy. Potential future therapies for TNBC include targeted molecular strategies including poly (adenosine diphosphate ribose) polymerase (PARP) and epidermal growth factor receptor (EGFR) inhibitors and antiangiogenic agents. Further research aimed at identifying unique genetic characteristics of TNBC may allow development of other targeted molecular chemotherapy treatment options.

Although there is a limited amount of data and not all studies demonstrated A1C reduction, the combination of exenatide with insulin therapy appears to be a safe option in the management of T2DM. It may be a promising therapeutic strategy for some patients, as reductions in weight and insulin doses were observed. Further well-designed prospective trials are warranted to fully determine the long-term effectiveness and safety of this combination as well as its place in therapy.

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Healthcare providers should be aware of valacyclovir as a possible cause of drug-induced aseptic meningitis.