Li D, Darden C, Osman N, Sayeed S, Jackson L, Garbinsky D, Chauhan A. Real-world clinical and patient-reported outcomes from the longitudinal telotristat ethyl treatment registry of patients with neuroendocrine tumors. Cancer Manag Res. 2022 Oct 17;14:3009-20. doi: 10.2147/CMAR.S386419

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. Secondary objectives evaluated satisfaction with control of CSD, flushing, and CS symptoms, as well as work productivity/activity impairment, SSA use, and weight. All analyses were descriptive in nature.

RESULTS: A total of 223 patients completed the baseline survey; 56% also completed the 6-month follow-up survey. Mean age was 61 years and 61% were women. After 6 months of TE treatment, the majority of patients (76%, n=95/125) reported being satisfied with control of their CS symptoms which was markedly improved from baseline (41%, n=91). Similarly, the majority of patients (78%, n=97/125) were satisfied with control of their CSD after 6 months of TE, markedly improved from baseline (36%).

CONCLUSION: This longitudinal observational study showed improvements in real-world clinical and humanistic outcomes for patients with CS and at least 6 months of TE treatment.

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