Interstitial Brachytherapy for the Treatment of Unresectable/Unablatable Kidney Cancer

  • STATUS
    Recruiting
  • End date
    Jun 30, 2023
  • participants needed
    17
  • sponsor
    Jonsson Comprehensive Cancer Center
Updated on 25 January 2021

Summary

This phase I/II trial investigates the side effects of interstitial brachytherapy and to see how well it works in limiting the growth of large kidney cancer masses in patients with kidney cancer that have refused or are unable to undergo surgery or ablation (unresectable/unablatable). Brachytherapy, also known as internal radiation therapy, temporarily introduces a radiation source into or near the tumor to eradicate the tumor cells. Giving brachytherapy may potentially reduce the size of the kidney cancer mass that would otherwise not be amenable to surgical management and translate into lower risk of spread.

Description

PRIMARY OBJECTIVES:

I. To determine the safety and feasibility of renal interstitial radiation therapy (interstitial brachytherapy). (Safety Lead-In) II. To evaluate local control of renal interstitial brachytherapy. (Expansion Phase)

SECONDARY OBJECTIVES:

I. To evaluate treatment response of the primary tumor. II. To evaluate 12 month distant progression free survival. III. To evaluate the 12 month volumetric growth of the primary tumor mass. IV. To determine biomarkers predicting response and resistance to radiation treatment.

OUTLINE

Patients undergo interstitial brachytherapy for 1-2 fractions in the absence of disease progression or unacceptable toxicity. Patients who undergo 2 fractions may receive both fractions in the same day or on 2 separate days over 2 weeks.

After completion of study treatment, patients are followed up every 3 months for at least 3 years.

Details
Condition Stage I Renal Cell Cancer, Stage II Renal Cell Cancer
Treatment Interstitial Radiation Therapy
Clinical Study IdentifierNCT04473781
SponsorJonsson Comprehensive Cancer Center
Last Modified on25 January 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Is your age greater than or equal to 18 yrs?
Gender: Male or Female
Do you have any of these conditions: Stage I Renal Cell Cancer or Stage II Renal Cell Cancer?
Elected to undergo interstitial brachytherapy as part of conventional treatment for renal cell carcinoma
Biopsy proven renal cell carcinoma
No definitive evidence of locally advanced (nodal or tumor thrombus) or distant (metastatic) disease
Lesion size (maximal dimension) of 4 to 10 cm
Patient not a candidate for curative surgery (unwilling or unable to pursue surgery)
Lesion cannot be reliably treated with ablative techniques
Entire lesion able to be treated adequately by brachytherapy per radiation oncologist
Tumor predominantly solid (~ > 80%)
Lesion that has been observed for >= 6 months with demonstrable growth rate anticipated to be >= 4 mm/year by same imaging modality
Renal tumor that is amenable to percutaneous access for interstitial renal brachytherapy (Institutional Review Board [IRB])
Hemoglobin > 9
Absolute neutrophil count (ANC) >= 1500/uL (microliter)
Platelets >= 100,000/uL
Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 3.0 upper limit of normal (ULN)
Total bilirubin =< ULN
A competent immune system
Estimated glomerular filtration rate (eGFR) >= 30
Good performance status (Eastern Cooperative Oncology Group [ECOG]) < 2
Understanding and willingness to provide consent
No prior systemic treatment for kidney cancer
Women of childbearing potential must have negative pregnancy test at start of therapy

Exclusion Criteria

Presence of an active, untreated, non-renal malignancy
Uncontrolled medical illness including infections, hypertension, arrhythmias, heart failure, or myocardial infarction within 6 months
History of bleeding diathesis or recent bleeding episode
Need for urgent treatment of renal cancer due bleeding, pain, or paraneoplastic syndrome
Prior surgery or radiation therapy to the operative site
Unwillingness to undergo clinical and laboratory monitoring and/or imaging studies
Clear my responses

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