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Sapanisertib

Phase 2

Endometrial Cancer | Small molecule | Oncology |Faeth Therapeutics, Inc. Common Stock|Last Updated: Dec 24, 2025

Development status

Highest phase Phase 2
Registered trials 4 across 2 sponsors since Apr 2015

Target and mechanism

Molecular targetMTOR
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment40

FDA Designations

No designations recorded

Clinical trial landscape

Sapanisertib · 1 trial · 1 indication

Phase 2 1
NCT06463028Sapanisertib and Serabelisib (PIKTOR) With Paclitaxel and a Substudy With an Insulin-Suppressing Diet in Patients With Advanced/Recurrent Endometrial CancerEndometrial Cancer
RECRUITING40 Analytics
PHASE2RECRUITING
Sapanisertib and Serabelisib (PIKTOR) With Paclitaxel and a Substudy With an Insulin-Suppressing Diet in Patients With Advanced/Recurrent Endometrial Cancer
Endometrial CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Objective Response Rate (ORR)
Up to 2 years

Defined as the proportion of participants with measurable disease at baseline who have confirmed complete response (CR) or partial response (PR).

Secondary Endpoints

Progression free survival (PFS)
Up to 5 years.
Progression free survival (PFS) at 6 months
Up to 5 years.
Overall survival (OS)
Up to 5 years.
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
sapanisertib and serabelisib (PIKTOR) with paclitaxelEXPERIMENTALSubjects will receive doses of sapanisertib and serabelisib (PIKTOR) administered orally and paclitaxel administered intravenously.

Interventions

NameTypeDescription
SapanisertibDRUGOral
SerabelisibDRUGOral
PaclitaxelDRUGInfusion
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Eligibility Criteria

Age Range18 Years to N/A
SexFEMALE
Healthy VolunteersNo
Study Sites18

Inclusion Criteria: * Histologically confirmed diagnosis of endometrioid endometrial carcinoma. * Documented evidence of advanced or recurrent endometrial cancer that is not amenable to surgery/radiation for curative intent. * Participant has received at least 1 but not more than 4 prior systemic t...

Countries:United States
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Frequently asked questions about Sapanisertib

What is Sapanisertib used for in endometrial cancer?

Sapanisertib is an investigational small molecule being studied for advanced or recurrent endometrial cancer. It is being evaluated in a Phase 2 trial in combination with serabelisib, paclitaxel, and a substudy with an insulin-suppressing diet. The trial is currently recruiting female patients aged 18 years and older in the United States.

What does Sapanisertib target?

Sapanisertib targets MTOR, a kinase involved in cell growth and proliferation. It acts as an MTOR inhibitor. By inhibiting MTOR, sapanisertib may interfere with signaling pathways that drive tumor growth, which is the rationale for its study in endometrial cancer.

Who is developing Sapanisertib?

Sapanisertib is being developed by Faeth Therapeutics, Inc., which trades under the ticker FTH. The company is sponsoring the clinical development of sapanisertib in endometrial cancer.

What phase is Sapanisertib in?

Sapanisertib is in Phase 2 clinical development. It is not approved by the FDA and remains investigational. The ongoing Phase 2 trial is evaluating the drug in patients with advanced or recurrent endometrial cancer.

What clinical trials is Sapanisertib in?

Sapanisertib is being studied in one active clinical trial, NCT06463028. This Phase 2 trial is titled "Sapanisertib and Serabelisib (PIKTOR) With Paclitaxel and a Substudy With an Insulin-Suppressing Diet in Patients With Advanced/Recurrent Endometrial Cancer." It is currently recruiting participants and has an estimated enrollment of 40 patients.