Testing the Safety of the Anti-cancer Drug, Sn-117m-DTPA, for Advanced Cancers That Have Spread to Bones

NCT06982222 · Status: NOT_YET_RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2026-05-13

No results posted yet for this study

Summary

This phase I trial tests the safety, side effects and best dose of tin (Sn)-177m-diethylenetriaminepentaacetic acid (DTPA) and how well it works in treating prostate, breast or non-small cell lung cancer that has spread from where it first started (primary site) to the bones (bone metastases). Sn-117m-DTPA was originally tested in tumors that had spread to the bones to help reduce bone pain. The drug has been improved and is designed to send low-level radiation to tumors in the bone while being gentler on the bone marrow, where blood cells are made. Sn-117m-DTPA may be safe and tolerable, and may slow down or shrink tumors in patients with metastatic prostate, breast, or non-small cell lung cancer that has spread to the bones.

Conditions

  • Anatomic Stage IV Breast Cancer AJCC v8
  • Metastatic Breast Carcinoma
  • Metastatic Lung Non-Small Cell Carcinoma
  • Metastatic Malignant Neoplasm in the Bone
  • Metastatic Prostate Adenocarcinoma
  • Stage IV Lung Cancer AJCC v8
  • Stage IVB Prostate Cancer AJCC v8

Interventions

PROCEDURE

Biospecimen Collection

Undergo urine and blood sample collection

PROCEDURE

Bone Scan

Undergo technetium TC-99m bone scan

PROCEDURE

Computed Tomography

Undergo PET/CT, SPECT/CT and PSMA PET/CT

PROCEDURE

Positron Emission Tomography

Undergo PET/CT

PROCEDURE

PSMA PET Scan

Undergo PSMA PET/CT

PROCEDURE

Single Photon Emission Computed Tomography

Undergo SPECT/CT

RADIATION

Technetium TC-99m

Undergo technetium TC-99m bone scan

RADIATION

Tin Sn 117m Pentetate

Given IV

Sponsors & Collaborators

  • National Cancer Institute (NCI)

    lead NIH

Principal Investigators

  • Zin W Myint · Ohio State University Comprehensive Cancer Center LAO

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-10-01
Primary Completion
2027-02-12
Completion
2027-02-12
FDA Drug
Yes

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06982222 on ClinicalTrials.gov