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Study identifier: NCT07156565 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Actinium Therapy for Late-stage Aggressive Sarcomas

Condition: Advanced Soft Tissue Sarcoma  ·  Sponsor: Ratio Therapeutics, Inc.

PhasePhase 1
Planned participants30
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The goal of this clinical trial is to learn about the safety of drug \[Ac225\]RTX-2358 and the diagnostic imaging agent \[Cu64\]LNTH-1363S. Additionally Ratio Therapeutics will learn if \[Ac225\]RTX-2358 drug is effective in treating advanced sarcoma. The main questions the study aims to answer in Phase/Part 1 of the trial are: * Is \[Ac225\]RTX-2358 tolerable or does it cause toxicities (medical problems) in patients. * What is the most tolerable dose of \[Ac225\]RTX-2358 * Does the treatment show effectiveness on advanced sarcoma Participants will: * Take drug \[Ac225\]RTX-2358 once every 8 weeks (4 cycle target; 6 cycle maximum) over a period of 12 months * Visit the clinic three times for the first week of cycle one, then once a week for the remaining 7 weeks of cycle 1 for check-ups and tests. * For cycles 2-6: patient will visit the clinic once every 2 weeks for checkups and tests * Remain in long term follow-up for a period of four additional years

This description comes directly from the study's public registry record.

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Contact details are listed per location below or on the registry record.

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Locations (6)

UCLALos Angeles, California, United StatesRecruiting
Mayo ClinicRochester, Minnesota, United StatesRecruiting
Memorial Sloane Kettering Cancer CenterNew York, New York, United StatesRecruiting
Case WesternCleveland, Ohio, United StatesRecruiting
MD Anderson Cancer CenterHouston, Texas, United StatesRecruiting
Princess Margaret Cancer CentreToronto, Ontario, CanadaRecruiting

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Source record: clinicaltrials.gov/study/NCT07156565