Recent Updates
Recently added Catalysts

Velusetrag

Phase 2

Gastroparesis | Small molecule | Gastrointestinal |Theravance Biopharma, Inc.|Trials Updated: Jul 8, 2025

Velusetrag development status

Highest phase Phase 2
Registered trials 3 across 2 sponsors since Oct 2014

Velusetrag target and mechanism

Molecular targetHTR4
Target classAgonist
ModalitySmall molecule

Also known as velusetrag dose 1, TD-5108

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials4
Total Enrollment667

FDA Designations

No designations recorded

Velusetrag clinical trials

Velusetrag · 4 trials · 3 indications

Phase 2 3Phase 1 1
NCT00391820Evaluate the Safety and Efficacy of a 5-HT4 Agonist in Chronic Constipation (ACCORD Trial)Chronic Constipation
COMPLETED360 Analytics
NCT02267525The Diabetic and Idiopathic Gastroparesis Efficacy, Safety, and Tolerability (DIGEST) StudyGastroparesis
COMPLETED233 Analytics
NCT01718938Phase 2 Study of Velusetrag in Diabetic or Idiopathic GastroparesisGastroparesis
COMPLETED34 Analytics
PHASE2COMPLETED
Evaluate the Safety and Efficacy of a 5-HT4 Agonist in Chronic Constipation (ACCORD Trial)
Chronic ConstipationUnlock trial analytics
PHASE2COMPLETED
The Diabetic and Idiopathic Gastroparesis Efficacy, Safety, and Tolerability (DIGEST) Study
GastroparesisUnlock trial analytics
PHASE2COMPLETED
Phase 2 Study of Velusetrag in Diabetic or Idiopathic Gastroparesis
GastroparesisUnlock trial analytics

Study Endpoints

Primary Endpoints

- Clinical response
7-day mean GCSI-24H (Gastroparesis Cardinal Symptoms Index) composite score
At Week 4
Gastric emptying half time (GE t1/2)
From baseline to week 5
Tolerability of repeat dosing of velusetrag
3 weeks

Number of subjects who complete the treatment period and are not withdrawn due to adverse events (AEs) or clinically significant findings on vital signs or ECGs

Secondary Endpoints

Gastric emptying half-time
At Week 4
Adverse events
103 days
Duration of lag time to gastric emptying (tlag)
From baseline to Week 5
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Velusetrag 5mgEXPERIMENTALVelusetrag 5mg capsules QD (once daily) x 12 weeks
Velusetrag 15mgEXPERIMENTALVelusetrag 15mg capsules QD x 12 weeks
Velusetrag 30mgEXPERIMENTALVelusetrag 30mg capsules QD x 12 weeks
PlaceboPLACEBO_COMPARATORPlacebo capsules QD x 12 weeks
Sequence 1EXPERIMENTAL3-way crossover of velusetrag or placebo
Sequence 2EXPERIMENTAL3-way crossover of velusetrag or placebo
Sequence 3EXPERIMENTAL3-way crossover of velusetrag or placebo
Sequence 4EXPERIMENTAL3-way crossover of velusetrag or placebo
Dose regimen 1EXPERIMENTALVaried doses
Dose regimen 2EXPERIMENTALVaried doses

Interventions

NameTypeDescription
TD-5108DRUG -
VelusetragDRUG -
PlaceboDRUG -
velusetrag dose 1DRUG -
velusetrag dose 2DRUG -
velusetrag dose 3DRUG -
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 64 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: * Meet ROME III Criteria Exclusion Criteria: * Constipation caused by:colonic etiology, pelvic floor dysfunction, metabolic disturbances, neurologic disturbances,concomitant medications affecting bowel function * Chronic treatment with anticholinergics, narcotic analgesics * I...

Countries:United States
Unlock Eligibility Criteria

Competitive Landscape -Gastroparesis 2 trials

Top 1 of 2 competitors

CompanyTickerTrialsLead PhaseDrugs
Vanda Pharmaceuticals Inc.VNDA1PHASE4Tradipitant
Unlock Competitive Intelligence

Frequently asked questions about Velusetrag

What is Velusetrag used for?

Velusetrag is an investigational small molecule being studied for gastroparesis and Alzheimer's disease. It has been evaluated in completed Phase 2 trials in diabetic and idiopathic gastroparesis, and in a Phase 1 study in healthy elderly subjects. It is not approved for any indication and remains in clinical development.

What does Velusetrag target?

Velusetrag targets HTR4, the serotonin 5-HT4 receptor, and acts as an agonist. By activating this receptor, it is designed to stimulate gastrointestinal motility, which is the rationale for studying it in gastroparesis. The target class is agonist.

Who is developing Velusetrag?

Velusetrag is being developed by Theravance Biopharma, Inc., which trades under the ticker TBPH. The company is the sponsor of the clinical program evaluating the drug in gastroparesis and Alzheimer's disease.

What phase is Velusetrag in?

Velusetrag is in Phase 1 development. The program includes completed Phase 2 trials in gastroparesis and a completed Phase 1 study in healthy elderly subjects. It is investigational and has not been approved by the FDA for any indication.

What clinical trials is Velusetrag in?

Velusetrag has been studied in completed trials including NCT02267525, the Phase 2 DIGEST study in diabetic and idiopathic gastroparesis with 233 participants; NCT01718938, a Phase 2 study in diabetic or idiopathic gastroparesis with 34 participants; and NCT01467726, a Phase 1 study in healthy elderly subjects with 40 participants.

Is Velusetrag the same as velusetrag dose 1?

Yes, velusetrag dose 1 is an alternative name for Velusetrag. Both refer to the same investigational small molecule developed by Theravance Biopharma, Inc. (TBPH) that targets HTR4 and is being studied in gastroparesis and Alzheimer's disease.