CI

At a glance

ClinicalIndex Comparison Record
Phase 3Recruiting· 365 target
Drug / intervention
Doxorubicin +5 moredrug
Likely dose
Not stated in record
Key inclusion· 16
  • Age ≥18 years
  • Confirmed histopathologic diagnosis of DDLPS, UPS, or related poorly differentiated sarcoma
  • Metastatic or unresectable sarcoma
  • LVEF >50% by MUGA or echocardiogram within 28 days
Key exclusion· 10
  • Pregnant or breast-feeding
  • Prior anthracycline treatment
  • Active or progressive brain metastases requiring immediate CNS treatment, per physician judgment
  • Clinically significant immunodeficiency or autoimmune disorder requiring chronic systemic steroids or steroids within 7 days

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT06422806
NCT06422806Phase 3RecruitingHigh Momentum

A Randomized Phase III Trial of Doxorubicin + Pembrolizumab Versus Doxorubicin Alone for the Treatment of Dedifferentiated Liposarcoma (DDLPS), Undifferentiated Pleomorphic Sarcoma (UPS) and Related Poorly Differentiated Sarcomas

National Cancer Institute (NCI)·interventional·Posted May 21, 2024·Updated Jun 30, 2026

In Brief

A Phase 3 clinical trial evaluating Biospecimen Collection, Diagnostic Imaging Testing, and 4 other interventions for Metastatic Dedifferentiated Liposarcoma and 5 related conditions. Currently recruiting, targeting 365 participants across 256 sites in 3 countries.

Signals

Enrolling ahead of pace

Detailed Summary

This phase III trial compares the effect of immunotherapy (pembrolizumab) plus chemotherapy (doxorubicin) to chemotherapy (doxorubicin) alone in treating patients with dedifferentiated liposarcoma (DDLPS), undifferentiated pleomorphic sarcoma (UPS) or a related poorly differentiated sarcoma that has spread from where it first started (primary site) to other places in the body (metastatic) or that cannot be removed by surgery (unresectable). Doxorubicin is in a class of medications called anthracyclines. Doxorubicin damages the cell's deoxyribonucleic acid (DNA) and may kill tumor cells. It also blocks a certain enzyme needed for cell division and DNA repair. A monoclonal antibody is a type of protein that can bind to certain targets in the body, such as molecules that cause the body to make an immune response (antigens). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Adding immunotherapy (pembrolizumab) to the standard chemotherapy (doxorubicin) may help patients with metastatic or unresectable DDLPS, UPS or a related poorly differentiated sarcoma live longer without having disease progression.

Study Details

Timeline

Phase 3Recruiting
20252026202720282029203020312032203320342035
First PostedMay 21, 2024
Enrollment StartSep 11, 2024
Primary CompletionJun 30, 2035
TodayJul 2, 2026
Enrollment to primary: 10.8 yearsPosted 2.1 years agoPrimary completion in 9.0 years

Arms & Interventions

Arm A (doxorubicin and pembrolizumabexperimental

Patients receive doxorubicin IV over 3-10 minutes or up to 3 hours on day 1 of each cycle. Treatment repeats every 21 days for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients also receive pembrolizumab IV over 30 minutes on day 1 of each cycle. Cycles repeat every 21 days for 2 years in the absence of disease progression or unacceptable toxicity. Patients also undergo ECHO or MUGA scan, standard imaging scans and blood sample collection throughout the study.

Procedure: Biospecimen CollectionProcedure: Diagnostic Imaging TestingDrug: DoxorubicinProcedure: Echocardiography TestProcedure: Multigated Acquisition ScanBiological: Pembrolizumab
Arm B (doxorubicin)active_comparator

Patients receive doxorubicin IV over 3-10 minutes or up to 3 hours on day 1 of each cycle. Treatment repeats every 21 days for 6 cycles in the absence of disease progression or unacceptable toxicity. At time of disease progression, patients may begin receiving pembrolizumab alone IV over 30 minutes on day 1 of each cycle. Cycles repeat every 21 days for 2 years in the absence of additional progression or unacceptable toxicity. Patients also undergo ECHO or MUGA scan, standard imaging scans and blood sample collection throughout the study.

Procedure: Biospecimen CollectionProcedure: Diagnostic Imaging TestingDrug: DoxorubicinProcedure: Echocardiography TestProcedure: Multigated Acquisition Scan

Interventions

Biospecimen Collectionprocedure

Undergo blood sample collection

Diagnostic Imaging Testingprocedure

Undergo standard imaging scans

Doxorubicindrug

Given IV

Echocardiography Testprocedure

Undergo ECHO

Multigated Acquisition Scanprocedure

Undergo MUGA scan

Pembrolizumabbiological

Given IV