๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-07-16

Radiation Combined With BIspecific T-Cell Engager in DLL3 Expressing Tumors (NCT06814496)

RAdiation comBined With BIspecific T-Cell Engager in DLL3 Expressing Tumors (RABBIT) Study: A Phase I/II Study of AMG757 / Tarlatamab and Concurrent Radiation Therapy in Tumors With High Prevalence of DLL3

๐ŸŸข Recruiting Phase1 / Phase2 ๐Ÿ’Š Investigational Drug / Biologic Sponsor: University of Arizona

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

Phase I study to examine safety of the addition of concurrent tarlatamab with standard palliative and consolidative RT regimens , with a main cohort of N=20-24 patients with extracranial anatomic radiation sites. I) After lead in of 10 patients demonstrating safety of treatment, allow for expansion to cranial sites of disease (N=6-10) with continued enrollment in main cohort II) If toxicity criteria is not met in concurrent RT tarlatamab cohort, we will continue with sequential RT, either A) delivered within 7 days prior to cycle 1 day 1, or B) delivered during cycle 1 -2 but with pre- and post-RT washout of 7 days with no drug during RT, to examine safety in a temporally spaced setting. III) If sequential tarlatamab and radiation is not deemed safe, we would allow for continued enrollment to assess efficacy of drug sans radiation treatment, enriching for tumors not of small cell lung cancer histology and allowing for patients without sites amenable to RT. A nested phase II study will attempt to assess for ORR and safety of study intervention amongst tumors not of small cell lung cancer histology.

Who can join: Review the eligibility criteria below.

Location: Arizona Cancer Center at UMC North/University Medical Center โ€” Tucson, Arizona

Age range: 18 Years to 99 Years

๐Ÿงช Interventions in This Study

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (2 Sites)

  • Arizona Cancer Center at UMC North/University Medical Center โ€” Tucson, Arizona
  • University of Washington Fred Hutchinson Cancer Center โ€” Seattle, Washington

๐Ÿ“ž Contact the Study Coordinator

Phone: (520) 626-0375

Email: UACC-IIT@uacc.arizona.edu

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

๐Ÿ’ฐ 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.

Explore by condition: All Melanoma clinical trials

๐Ÿ’ก 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.
๐Ÿ›๏ธ View Official NIH Record โ†—