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Sitexsentin

Phase 2

Diastolic Heart Failure | Small molecule | Cardiovascular |Pfizer, Inc.|Last Updated: Jan 4, 2023

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment200

FDA Designations

No designations recorded

Clinical trial landscape

Sitexsentin · 1 trial · 1 indication

Phase 2 1
NCT00303498A Study of the Effectiveness of Sitaxsentan Sodium in Patients With Diastolic Heart FailureDiastolic Heart Failure
COMPLETED200 Analytics
PHASE2COMPLETED
A Study of the Effectiveness of Sitaxsentan Sodium in Patients With Diastolic Heart Failure
Diastolic Heart FailureUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline in Treadmill Exercise Time at Maintenance Phase Week 24
Baseline, Week 24 (Maintenance Phase)

Treadmill exercise test is used to assess the functional capacity of participants with cardiac disease. Treadmill exercise test was conducted using the 2 minute incremental Naughton protocol. The Naughton protocol starts with a 2 minute warm-up. The speed of treadmill is set to 1 mile per hour (mph) and the incline is set to 0. After the warm-up, the speed is set at 2 mph for the remainder of the test. The test consists of six, 2 minute intervals. The grade starts at 0 for the first interval, and increases by 3.5 percent every 2 minutes. The change in total exercise time (in seconds) during the treadmill test was reported.

Secondary Endpoints

Change From Baseline in Ratio of Transmitral Inflow Velocity (E) to Early Diastolic Velocity of the Mitral Annulus (E') at Maintenance Phase Week 24
Baseline, Week 24 (Maintenance Phase)
Change From Baseline in Left Ventricular Mass at Maintenance Phase Week 24
Baseline, Week 24 (Maintenance Phase)
Change From Baseline in Minnesota Living With Heart Failure (MLHF) Questionnaire - Quality of Life (QoL) Total Score at Maintenance Phase Week 24
Baseline, Week 24 (Maintenance Phase)
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Sitaxsentan sodiumEXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -

Interventions

NameTypeDescription
Sitexsentin sodiumDRUGsitaxsentan 100 mg (target dose) 0rally once daily. A 10-week Run-In Phase was conducted where dosing commenced at 25 mg daily for 2 weeks, and then was stepped up to 50 mg daily for 2 weeks, to 75 mg daily for 2 weeks and then to 100 mg daily for 2 weeks, with an additional 2-week stabilization period (10 weeks total) to a target study dose of 100 mg daily. During the Run-In Phase, if a subject was not able to tolerate upward dose titration to the target dose of 100 mg, the investigator may have elected to continue at the current dosage or reduce the dosage of sitaxsentan or placebo to the subject's immediate prior dose. During the Maintenance Phase, subjects received the highest titrated dose reached of study drug and continued it through the last day of Week M24 of the Maintenance Phase (14 weeks)- total study drug treatment duration= 6 months
PlaceboDRUGplacebo identical to the study drug in description, dose and duration
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites52

Inclusion Criteria: * 18 or older with chronic heart failure and evidence of diastolic dysfunction on echocardiogram, heart imaging, and a minimum exercise tolerance average time of 120 seconds on two treadmill tests within 2 weeks of enrollment Exclusion Criteria: * unstable cardiovascular disea...

Countries:United StatesCanada
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Frequently asked questions about Sitexsentin

What is Sitexsentin used for?

Sitexsentin is an investigational small molecule being studied for the treatment of diastolic heart failure, a condition in which the heart's lower chambers have trouble relaxing and filling with blood. It is being developed by Pfizer, Inc. and is currently in Phase 2 clinical development.

What does Sitexsentin target?

Sitexsentin is a small molecule designed to address diastolic heart failure. Its specific molecular target has not been disclosed in available information, so the exact mechanism of action is not detailed here.

Who makes Sitexsentin?

Sitexsentin is being developed by Pfizer, Inc., a pharmaceutical company traded on the New York Stock Exchange under the ticker symbol PFE. The drug is currently in Phase 2 clinical trials for diastolic heart failure.

What phase is Sitexsentin in?

Sitexsentin is in Phase 2 clinical development. It is an investigational drug and has not been approved by regulatory authorities. A Phase 2 trial has been completed to evaluate its effectiveness in patients with diastolic heart failure.

What clinical trials is Sitexsentin in?

Sitexsentin has been studied in one completed Phase 2 trial, identified as NCT00303498. This randomized, double-blind, placebo-controlled study enrolled 200 participants with diastolic heart failure and was conducted in the United States and Canada.

Is Sitexsentin the same as Sitaxsentan?

Sitexsentin is a variant name for the drug also known as Sitaxsentan. The clinical trial NCT00303498 refers to the drug as Sitaxsentan Sodium, indicating that Sitexsentin and Sitaxsentan refer to the same investigational compound.