Real-World Clinical and Patient-Reported Outcomes from the Longitudinal Telotristat Ethyl Treatment Registry of Patients with Neuroendocrine Tumors.

Background: Telotristat ethyl (TE) is an oral tryptophan hydroxylase inhibitor approved for the treatment of carcinoid syndrome diarrhea (CSD) in combination with somatostatin analogs (SSAs).

Methods: This prospective, observational, single-arm study evaluated long-term patient-reported outcomes for adults initiating TE in US clinical practice from 2017 through January 2022. The primary objective was satisfaction with overall CS symptom control 6 months after initiating TE.