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Telotristat etiprate

Phase 3

Carcinoid Syndrome | Small molecule | Oncology |Lexicon Pharmaceuticals, Inc.|Last Updated: Sep 17, 2019

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLEDDMC
Total Trials5
Total Enrollment373

FDA Designations

No designations recorded

Clinical trial landscape

Telotristat etiprate · 11 trials · 5 indications

Phase 3 3Phase 2 3Phase 1 5
NCT02063659Telotristat Etiprate for Carcinoid Syndrome TherapyCarcinoid Syndrome
COMPLETED76 Analytics
NCT02026063Telotristat Etiprate - Expanded Treatment for Patients With Carcinoid Syndrome SymptomsCarcinoid Syndrome
COMPLETED124 Analytics
NCT01677910TELESTAR (Telotristat Etiprate for Somatostatin Analogue Not Adequately Controlled Carcinoid Syndrome)Carcinoid Syndrome
COMPLETED135 Analytics
PHASE3COMPLETED
Telotristat Etiprate for Carcinoid Syndrome Therapy
Carcinoid SyndromeUnlock trial analytics
PHASE3COMPLETED
Telotristat Etiprate - Expanded Treatment for Patients With Carcinoid Syndrome Symptoms
Carcinoid SyndromeUnlock trial analytics
PHASE3COMPLETED
TELESTAR (Telotristat Etiprate for Somatostatin Analogue Not Adequately Controlled Carcinoid Syndrome)
Carcinoid SyndromeUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Treatment-Emergent Adverse Events (TEAEs) in the Double-Blind Treatment Period
First dose of study drug to within 30 days of last dose of study drug in the Double-Blind Treatment Period (Up to 17.1 Weeks)

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. A TEAE was an AE reported after the first dose of randomized treatment on Day 1.

Primary: Percent Change From Baseline in Urinary 5-hydroxyindoleacetic Acid (u5-HIAA) Levels
Baseline and 12 Weeks

u5-HIAA is a standard test used in clinical practice to assess neuroendocrine tumor (NET) activity and is collected as a 24-hour urine specimen. A negative change from Baseline indicates improvement.

Number of Participants With Treatment-Emergent Adverse Events (TEAEs) in the Open-Label Extension Period
First dose of study drug to within 30 days of last dose of study drug in the Open-Label Extension Period (Up to 52.6 Weeks)

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. A TEAE was an AE reported after the first dose of randomized treatment on Day 1.

Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
First dose of study drug (Day 1) up to 15 days post last dose (approximately up to 236 weeks)

An adverse event (AE) is defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug-related. An AE includes any noxious, pathological, or unintended change in anatomical, physiological, or metabolic functions as indicated by physical signs or symptoms occurring in any phase of the clinical study whether or not considered related to the study medication. A TEAE is an AE that occurs or worsens after receiving study drug.

Change From Baseline in the Number of Bowel Movements (BMs) Per Day Averaged Over 12 Weeks
Baseline and 12 Weeks

Participants recorded the number of bowel movements per day in a daily diary. The total number of BMs per day were averaged over the 12-week period. A negative change from Baseline indicates improvement.

Number of Participants With TEAEs in the Open-Label Extension Period
First dose of study drug to within 30 days of last dose of study drug in the Open-Label Extension Period (Up to 54.3 Weeks)

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. A TEAE was an AE reported after the first dose of randomized treatment on Day 1.

Number of Participants Experiencing a Treatment Emergent Adverse Event
8 weeks
Number of Participants With Any Treatment Emergent Adverse Events (TEAEs) and Drug-Related TEAEs in the Core Phase
Baseline up to Week 12 in the Core Phase

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug-related. Treatment-emergent AEs were defined as any AEs reported after the first dose of treatment on Day 1.

Number of Participants With Any Treatment Emergent Adverse Events (TEAEs) and Drug-Related TEAEs in the Extension Period
Up to 124 Weeks in the Extension Period

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug-related. Treatment-emergent AEs were defined as any AEs reported after the first dose of treatment on Day 1.

Number of Participants With Any Treatment-emergent Adverse Event (TEAE) and Any Drug-related TEAE in the Core Phase
Up to 4 Weeks Core Phase

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug-related. A TEAE was an AE reported after the first dose of randomized treatment on Day 1.

Number of Participants With Any TEAE in the Open-Label Extension Phase
Up to 180 weeks in the open-label extension phase

An AE was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. A TEAE was an AE reported after receiving treatment.

Fexofenadine plasma concentration in combination with steady state telotristat etiprate
Day 10
Plasma concentrations of telotristat ethyl
Days 1, 2, 3, 6, 7, 8
Plasma concentrations of metabolite LP-778902
Days 1, 2, 3, 6, 7, 8
Plasma concentration of metabolite LP-778902
Days 1, 2, 3, 6, 7, 8
Midazolam plasma concentration in combination with steady state telotristat etiprate
Day 9
Mean change from baseline QT interval corrected for heart rate
Days 1-3

Secondary Endpoints

Change From Baseline in the Number of Bowel Movements (BMs) Per Day Averaged Over 12 Weeks
Baseline and 12 weeks
Change From Baseline in Stool Form/Consistency Averaged Across All Time-Points
Baseline and 12 Weeks
Change From Baseline in the Number of Daily Cutaneous Flushing Episodes Averaged Across All Time-Points
Baseline and 12 Weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
250 mg Telotristat EtiprateEXPERIMENTALFollowing a 3 to 4-week run-in period, participants were randomized to receive one 250 mg telotristat etiprate tablet and one placebo-matching telotristat etiprate tablet administered three times daily for 12 weeks, followed by a 36 week open-label extension period.
500 mg Telotristat EtiprateEXPERIMENTALFollowing a 3 to 4-week run-in period, participants were randomized to receive one 250 mg telotristat etiprate tablet and one placebo-matching telotristat etiprate tablet administered three times daily for one week, followed by two 250 mg telotristat etiprate tablets administered three times daily for 11 weeks in the 12 week double-blind treatment period, followed by a 36 week open-label extension period.
PlaceboPLACEBO_COMPARATORFollowing a 3 to 4-week run-in period, participants were randomized to receive two placebo-matching telotristat etiprate tablets administered three times daily for 12 weeks, followed by a 36 week open-label extension period.
Telotristat Etiprate Open-Label ExtensionEXPERIMENTALPatients previously assigned to 250 mg or 500 mg three times daily of telotristat etiprate were administered two 250 mg telotristat etiprate tablets three times daily in a 36 week open-label extension (OLE) period. Patients previously assigned to placebo were administered one 250 mg telotristat etiprate tablet plus one placebo-matching tablet three times daily for one week, followed by two 250 mg telotristat etiprate tablets three times daily for 35 weeks.
Low Dose Telotristat EtiprateEXPERIMENTAL500 mg telotristat etiprate (LX1606) administered orally once daily (QD).
High Dose Telotristat EtiprateEXPERIMENTAL500 mg telotristat etiprate (LX1606) administered orally three times daily (TID).
Telotristat etiprate - Core PhaseEXPERIMENTALFollowing a 2-week Run-In Period, participants received telotristat etiprate capsules at a starting dose of 150 mg, orally three times daily (TID) for 14 days in the Core Phase. Dose escalations (250 mg, 350 mg, 500 mg) occurred serially every 14 days, up to a maximum dosage of telotristat etiprate 500 mg TID, as guided by specific clinical criteria for dose escalation. Upon completion of 12 weeks of treatment, participants were eligible to receive telotristat etiprate in the optional Open-label Extension Period.
Telotristat etiprate - Extension PeriodEXPERIMENTALParticipants received telotristat etiprate at their highest tolerated dose (250 mg or 500 mg), orally, TID for 124 weeks in the Open-label Extension Period. If neither dose was tolerated participants were discontinued from the study and completed the 2-week Follow-up Visit.
Telotristat Etiprate 150 mg Core PhaseEXPERIMENTALTelotristat etiprate capsules,150 mg orally 3 times daily for 28 days in the double-blind treatment period (core phase) in combination with stable-dose octreotide long-acting release (LAR) depot therapy given once per month. Upon completion of 28-days of treatment, participants were eligible to enter the optional open-label extension period.
Telotristat Etiprate 250 mg Core PhaseEXPERIMENTALTelotristat etiprate capsules, 250 mg orally 3 times daily for 28 days in the double-blind treatment period in combination with stable-dose octreotide LAR depot therapy given once per month. Upon completion of 28-days of treatment, participants were eligible to enter the optional open-label extension period.
Telotristat Etiprate 350 mg Core PhaseEXPERIMENTALTelotristat etiprate capsules, 350 mg orally 3 times daily for 28 days in the double-blind treatment period in combination with stable-dose octreotide LAR depot therapy given once per month. Upon completion of 28-days of treatment, participants were eligible to enter the optional open-label extension period.
Telotristat Etiprate 500 mg Core PhaseEXPERIMENTALTelotristat etiprate capsules, 500 mg orally 3 times daily for 28 days in the double-blind treatment period in combination with a stable-dose octreotide LAR depot therapy given once per month. Upon completion of 28-days of treatment, participants were eligible to enter the optional open-label extension period.
Placebo Core PhaseEXPERIMENTALPlacebo-matching telotristat etiprate capsules, orally 3 times daily for 28 days in the double-blind treatment period in combination with stable-dose octreotide LAR depot therapy given once per month. Upon completion of 28-days of treatment, participants were eligible to receive telotristat etiprate in the optional open-label extension period.
Telotristat Etiprate Open-Label Extension PhaseEXPERIMENTALTelotristat etiprate at assigned dose level for 8 weeks in combination with stable-dose octreotide LAR depot therapy given once per month in the open-label extension period. Upon completion of the 8-week period, participants could enter an additional extension period of 172 weeks, receiving telotristat etiprate at the assigned dose or maximum tolerated dose (500 mg 3 times daily).
All subjectsEXPERIMENTALAll subjects will receive a single oral dose of fexofenadine on Day 1 while fasting. Days 2 to 5 will be Washout days. On Day 6, subjects will begin a 5 day telotristat etiprate regimen. On Day 10 subjects will be given the morning telotristat etiprate dose concomitantly with a single dose of fexofenadine while fasting.
Period 1EXPERIMENTALSingle oral dose of 500 mg telotristat etiprate on Day 1
Period 2OTHERSubcutaneous injections of 200 µg octreotide acetate three times daily with a single oral dose of 500 mg telotristat etiprate on Day 6
Treatment AEXPERIMENTALSubjects will receive a single 500 mg (as free base) dose of telotristat etiprate (as 2 × 250 mg tablets) on Day 1 in a fed condition. Days 2 to 5 will be Washout Days. On Day 6, subjects will receive a single 500 mg (as free base) dose of telotristat etiprate (as 2 × 250 mg tablets) 1 in a fasted condition.
Treatment BEXPERIMENTALSubjects will receive a single 500 mg (as free base) dose of telotristat etiprate (as 2 × 250 mg tablets) on Day 1 in a fasted condition. Days 2 to 5 will be Washout Days. On Day 6, subjects will receive a single 500 mg (as free base) dose of telotristat etiprate (as 2 × 250 mg tablets) 1 in a fed condition.
Telotristat etiprateEXPERIMENTALSingle dose of telotristat etiprate followed by a 7-day washout.
MoxifloxacinACTIVE_COMPARATORSingle dose of moxifloxacin followed by a 7-day washout.

Interventions

NameTypeDescription
Telotristat etiprateDRUGTelotristat etiprate tablets
PlaceboDRUGPlacebo-matching telotristat etiprate tablets
Placebo-matching telotristat etiprateDRUGPlacebo-matching telotristat etiprate tablets.
Octreotide LAR DepotDRUGA stable-dose octreotide LAR depot therapy; administered subcutaneously once per month.
FexofenadineDRUGAll subjects will receive 180 mg fexofenadine
Octreotide acetateDRUG200 µg octreotide acetate three times daily
MidazolamDRUGAll subjects will receive 3 mg (1.5 mL oral syrup \[2mg/mL\]).
MoxifloxacinDRUG400 mg moxifloxacin (one 400 mg tablet)
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites50

Inclusion Criteria: * Patients ≥ 18 years of age * All patients of reproductive potential must agree to use an adequate method of contraception during the study and for 12 weeks after the Follow-up visit. * Histopathologically-confirmed, well-differentiated metastatic neuroendocrine tumor * Documen...

Countries:United StatesAustraliaBelgiumCanadaFranceGermanyIsraelNetherlandsSpainSwedenUnited KingdomItalyLithuaniaPolandSlovakia
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Frequently asked questions about Telotristat etiprate

What is Telotristat Etiprate used for?

Telotristat Etiprate is an investigational small molecule being studied for ulcerative colitis, carcinoid syndrome, drug interactions, and QT interval effects. It is in Phase 2 clinical development for ulcerative colitis, with completed trials also evaluating its safety in healthy volunteers and its potential to affect cardiac electrical activity.

Who makes Telotristat Etiprate?

Telotristat Etiprate is being developed by Lexicon Pharmaceuticals, Inc., a biopharmaceutical company traded on the Nasdaq under the ticker LXRX. The company has conducted multiple clinical trials of the drug across various indications and healthy volunteer studies.

What phase is Telotristat Etiprate in?

Telotristat Etiprate is in Phase 2 clinical development for ulcerative colitis. It is an investigational drug and has not been approved by regulatory authorities. All five completed trials, including Phase 1 and Phase 2 studies, have finished, with no active trials currently ongoing.

What clinical trials has Telotristat Etiprate been in?

Telotristat Etiprate has been studied in five completed trials. These include NCT01456052 for ulcerative colitis, NCT02147808 and NCT02157558 for drug interactions, NCT02155205 for QT interval effects, and a fifth trial. Total enrollment across these studies was 373 participants.

Is Telotristat Etiprate the same as LX1606?

Telotristat Etiprate is also known as LX1606, as referenced in the clinical trial title for the ulcerative colitis study. This alternative name may appear in older literature or trial registrations, but both names refer to the same investigational drug being developed by Lexicon Pharmaceuticals.