๐๏ธ Verified NIH Record โข Updated 2026-08-20
Trial of 225Ac-DOTATATE (RYZ101) in Subjects With ER+, HER2-negative Unresectable or Metastatic Breast Cancer Expressing SSTRs. (NCT06590857)
Phase 1b/2 Open-label Trial of 225Ac-DOTATATE (RYZ101) in Subjects With Estrogen Receptor-positive (ER+), Human Epidermal Growth Factor Receptor 2 (HER2)-Negative, Locally Advanced and Unresectable or Metastatic Breast Cancer Expressing Somatostatin Receptors (SSTRs) (TRACY-1).
๐ต Active, Not Recruiting Phase1 / Phase2 ๐ Investigational Drug / Biologic Sponsor: RayzeBio, Inc.
๐ฉบ Plain-English Summary (8th-Grade Level)
Phase 1b/2 open-label trial of 225Ac-DOTATATE (RYZ101) in subjects with ER+, HER2-negative unresectable or metastatic breast cancer expressing SSTRs.
Who can join: Review the eligibility criteria below.
Location: Research Facility โ Phoenix, Arizona
๐งช Interventions in This Study
๐ "Do I Qualify?" โ 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria โ
๐ All Participating Trial Locations (31 Sites)
Showing the first 25 of 31 sites.
- Research Facility โ Phoenix, Arizona
- Research Facility โ Irvine, California
- Research Facility โ San Diego, California
- Research Facility โ Santa Monica, California
- Research Facility โ Longmont, Colorado
- Research Facility โ Jacksonville, Florida
- Research Facility โ Atlanta, Georgia
- Research Facility โ Indianapolis, Indiana
- Research Facility โ Boston, Massachusetts
- Research Facility โ Detroit, Michigan
- Research Facility โ Rochester, Minnesota
- Research Facility โ St Louis, Missouri
- Research Facility โ Omaha, Nebraska
- Research Facility โ Albuquerque, New Mexico
- Research Facility โ Buffalo, New York
- Research Facility โ New York, New York
- Research Facility โ New York, New York
- Research Facility โ Cleveland, Ohio
- Research Facility โ Philadelphia, Pennsylvania
- Research Facility โ Pittsburgh, Pennsylvania
- Research Facility โ Dallas, Texas
- Research Facility โ Houston, Texas
- Research Facility โ Salt Lake City, Utah
- Research Facility โ Norfolk, Virginia
- Research Facility โ Seattle, Washington
๐ฐ 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 ยง 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.
More studies in Metastatic Breast Cancer
- Assessing the Time Demands of Cancer โ Birmingham, Alabama
- Niraparib in Combination With Trastuzumab in Metastatic HER2+ Breast Cancer โ Birmingham, Alabama
- A Phase 1b Study of T-DXd Combinations in HER2-low Advanced or Metastatic Breast Cancer โ Commack, New York
- Palbociclib With Fulvestrant for Metastatic Breast Cancer After Treatment With Palbociclib and an Aromatase Inhibitor โ Washington D.C., District of Columbia
- A Study of Abemaciclib (LY2835219) Plus Tamoxifen or Abemaciclib Alone in Women With Metastatic Breast Cancer โ Tucson, Arizona
- Roll-over Study to Allow Continued Access to Ribociclib โ Chandler, Arizona
Explore by condition: All Metastatic Breast Cancer clinical trials
๐ก How to Participate
- Check the checklist above to see if you may qualify.
- Review the official NIH record below to find the coordinating site.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.