🏛️ Verified NIH Record • Updated 2026-08-27

Measuring if Immunotherapy Plus Chemotherapy is Better Than Chemotherapy Alone for Patients With Aggressive Poorly Differentiated Sarcomas (NCT06422806)

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

🟢 Recruiting Phase3 💊 Investigational Drug / Biologic Sponsor: National Cancer Institute (NCI)

🩺 Plain-English Summary (8th-Grade Level)

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.

Who can join: To join this study, participants generally need to meet the listed inclusion criteria (42 items) and avoid the listed exclusions (0 items).

Location: Mayo Clinic Hospital in Arizona — Phoenix, Arizona

Age range: 18 Years

🧪 Interventions in This Study

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Check every box below. If you can check all of them, you may meet the study's basic screening requirements (final eligibility is confirmed by the site team).

🔍 Extracted verbatim from the official NIH eligibility criteria. Always confirm with the study coordinator.

📍 All Participating Trial Locations (257 Sites)

Showing the first 25 of 257 sites.

  • Mayo Clinic Hospital in Arizona — Phoenix, Arizona
  • Banner University Medical Center - Tucson — Tucson, Arizona
  • University of Arizona Cancer Center-North Campus — Tucson, Arizona
  • Kaiser Permanente Dublin — Dublin, California
  • Kaiser Permanente-Fremont — Fremont, California
  • Kaiser Permanente Fresno Orchard Plaza — Fresno, California
  • Kaiser Permanente-Fresno — Fresno, California
  • UC San Diego Moores Cancer Center — La Jolla, California
  • Keck Medicine of USC Koreatown — Los Angeles, California
  • Los Angeles General Medical Center — Los Angeles, California
  • USC / Norris Comprehensive Cancer Center — Los Angeles, California
  • Cedars-Sinai Medical Center — Los Angeles, California
  • Kaiser Permanente- Modesto MOB II — Modesto, California
  • Kaiser Permanente-Modesto — Modesto, California
  • USC Norris Oncology/Hematology-Newport Beach — Newport Beach, California
  • Kaiser Permanente-Oakland — Oakland, California
  • Stanford Cancer Institute Palo Alto — Palo Alto, California
  • VA Palo Alto Health Care System — Palo Alto, California
  • Huntington Memorial Hospital — Pasadena, California
  • Kaiser Permanente-Roseville — Roseville, California
  • Kaiser Permanente Downtown Commons — Sacramento, California
  • Kaiser Permanente-South Sacramento — Sacramento, California
  • Kaiser Permanente-San Francisco — San Francisco, California
  • UCSF Medical Center-Mission Bay — San Francisco, California
  • Kaiser Permanente-Santa Teresa-San Jose — San Jose, California

📞 Contact the Study Coordinator

Phone: (855) 776-0015

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗