A Clinical Trial Evaluating the Safety & Clinical Activity of Radioiodide

Status Withdrawn

Clinical Trial Summary

The purpose of this phase I/II study is to evaluate the safety and clinical activity of Radioiodide (131I-) as a novel targeted therapy for metastatic breast cancer that overexpresses functional Na/I symporter. The study will enroll patients with metastatic breast cancer who have had clinical and/or radiographic evidence of disease progression on prior hormonal and/or chemotherapy.

Clinical Trial Description

The primary objectives of the study are as follows:

1. To evaluate the feasibility of using 124I- PET/CT scans to identify patients whose metastatic lesions accumulate radioactive iodide and therefore are candidates for 131I- therapy.

2. Determine the frequency of iodide (124I) enriching metastatic breast cancer.

3. Evaluate the safety and clinical activity of one-time 131I treatment to patients who screen positive on 124I- PET/CT screening, positivity is defined as calculated iodide enrichment that will allow delivering 2000 cGy or more radiation to one or more metastatic lesion by administering up to 200mCi 131I-.

The secondary objectives of the study are as follows:

1. To investigate a correlation between NIS expression in tumor tissue with 124I- uptake on screening PET/CT scan

The Phase I portion will follow a 3+3 design with 4 dose levels (30, 60, 120, and 200 mCi) of I- treatment. The maximum tolerated dose will be used in the Phase II efficacy assessment which will follow a Simon's optimal two-stage design. The primary efficacy measure is objective tumor response rate (CR or PR) with targeted activity level of > 20% response rate.

The study will be terminated for futility if no tumor response is seen in the first 12 patients. If futility criteria is not met, a total of 37 eligible patients will be enrolled in the Phase II portion. If 4 or more responses are seen after 37 patients were evaluated, then the investigators will conclude that the regimen warrants further study. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02988648
Study type	Interventional
Source	Yale University
Contact
Status	Withdrawn
Phase	Phase 1/Phase 2
Start date	December 2016
Completion date	January 2018

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

A Clinical Trial Evaluating the Safety and Clinical Activity of Radioiodide (131I-) as a Novel Targeted Therapy for Metastatic Breast Cancer That Overexpresses Functional Na/I Symporter

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms