Response to temozolomide and bevacizumab in a patient with poorly differentiated neuroendocrine carcinoma

Abstract

Poorly differentiated endocrine carcinomas (PDEC) are usually treated with cisplatin-based chemotherapy regimens. We here present a case with a dramatic response (both radiologically and biochemically) to the combination of temozolomide and bevacizumab, after failure of cisplatin and etoposide, with continued tumor shrinkage at 5 months. Temozolomide combined with bevacizumab might be a good treatment option in PDEC, perhaps even in a first-line setting. Prospective studies to answer this are warranted.