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Telotristat etiprate

Phase 3

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

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindCONTROLLEDDMCBiomarker
Total Trials5
Total Enrollment373
FDA Designations
No designations recorded
Clinical Trials (5)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02063659Telotristat Etiprate for Carcinoid Syndrome TherapyPHASE3 COMPLETED 76Mar 11, 2014Mar 29, 2016Feb 26, 201850 United States, Australia +9
NCT02026063Telotristat Etiprate - Expanded Treatment for Patients With Carcinoid Syndrome SymptomsPHASE3 COMPLETED 124Jan 14, 2014Sep 12, 2018Sep 17, 201943 United States, Australia +10
NCT01677910TELESTAR (Telotristat Etiprate for Somatostatin Analogue Not Adequately Controlled Carcinoid Syndrome)PHASE3 COMPLETED 135Jan 8, 2013Mar 21, 2016Feb 27, 201875 United States, Australia +10
NCT01104415Study of Telotristat Etiprate (LX1606) in Participants With Symptomatic Carcinoid SyndromePHASE2 COMPLETED 15Jun 15, 2010Feb 12, 2014Mar 15, 201910 Germany, United Kingdom
NCT00853047Study of Telotristat Etiprate (LX1606) in Participants With Symptomatic Carcinoid Syndrome Not Managed by Stable-Dose Octreotide TherapyPHASE2 COMPLETED 23Mar 1, 2009Jun 1, 2014Dec 26, 20189 United States
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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 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.

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.
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).
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.
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Eligibility Criteria
Age Range18 Years — 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 KingdomItaly
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