Efficacy of Telotristat Etiprate in Refractory Carcinoid Syndrome: Results of a Randomized, Placebo-controlled, Multicenter Study Abstract #394

Introduction: Diarrhea associated with carcinoid syndrome (CS) has been attributed to excess serotonin. Telotristat etiprate is an oral serotonin synthesis inhibitor that decreases peripheral serotonin production.
Aim(s): This randomized study assessed safety, tolerability, and efficacy of telotristat etiprate in CS-associated diarrhea.
Materials and methods: Carcinoid patients with octreotide-refractory diarrhea (>4 bowel movements (BM)/day on stable-dose octreotide) were randomly assigned 3:1 to receive telotristat etiprate or placebo. Patients were dosed in sequential, escalating dose cohorts of 150, 250, 350, or 500mg tid, with an expansion cohort (500 mg tid). Endpoints included safety, reduction in BMs, 24-hour urinary 5-HIAA (u5-HIAA), and self-reported clinical improvement.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: Dr. Matthew Kulke

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#396 Telotristat Etiprate Produces Clinical and Biochemical Responses in Patients with Symptomatic Carcinoid Syndrome: Preliminary Results of an Ongoing Phase 2, Multicenter, Open-label, Serial-ascending, European Study
Introduction: Excess serotonin (5-HT) may cause gastrointestinal (GI) symptoms (e.g., diarrhea) in carcinoid syndrome (CS) patients. Telotristat etiprate is an oral serotonin synthesis inhibitor designed to reduce peripheral 5-HT levels and alleviate GI distress.
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#661 Telotristat Etiprate Produces Clinical and Biochemical Responses in Patients with Carcinoid Syndrome: Results of a Phase 2, Multicenter, Open-label, Serial-Ascending Study
Introduction: Excess serotonin (5-HT) in patients (pts) with carcinoid syndrome (CS) is associated with symptoms including increased bowel movement (BM) frequency.
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#870 Telotristat Etiprate (TE) in a Cohort of Carcinoid Heart Disease Patients in Two Phase 2 Trials
Introduction: Serotonin is a key mediator of carcinoid syndrome (CS). High levels of urinary 5-hydroxyindoleacetic acid (u5-HIAA, a serotonin metabolite) have also been linked with carcinoid heart disease (CaHD). Telotristat etiprate (TE), a novel, oral inhibitor of serotonin synthesis, is in Phase 3 development for the treatment of CS.
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#1068 Telotristat Etiprate in a Subset of Carcinoid Syndrome Patients Who Have High Levels of Urinary 5-hydroxyindoleacetic Acid and Frequent Flushing
Introduction: Serotonin is a key mediator of carcinoid syndrome (CS). CS patients (pts) with high levels of urinary 5-hydroxyindoleacetic acid (u5-HIAA, a serotonin metabolite) and >3 flushing episodes/day are at increased risk of developing carcinoid heart disease (CaHD).
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#1272 Telotristat Etiprate Appears to Halt Carcinoid Heart Disease
Introduction: Carcinoid Heart Disease (CHD) is a serious complication of the Carcinoid Syndrome (in as many as 50% of patients during the course of their disease). 46% of cases operated with bioprosthetic valves develop recurrent carcinoid valvulopathy on the newly implanted tissue valves. Until now, only mechanical prosthetic valves avoid recurrent fibrosis.
Conference: 13th Annual ENETS conference (2016)
Category: Medical treatment - Others
Presenting Author: MD, FACC, FCCP Jerome Zacks
Authors: Zacks J, Lavine R, Ratner L, Warner R, ...
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