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Assessment of Quality of Life and Outcomes in Patients With Primary Renal Cell Carcinoma Treated With SBRT

Assessment of Quality of Life and Outcomes in Patients Treated With Stereotactic Body Radiotherapy (SBRT) for Inoperable Renal Cell Carcinoma (RCC): A Multicenter Phase II Study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05023265
Acronym
AQuOS-II
Enrollment
70
Registered
2021-08-26
Start date
2022-02-08
Completion date
2026-10-01
Last updated
2026-04-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Renal Cell Carcinoma

Brief summary

This is a multicenter, single arm phase II study of stereotactic body radiation therapy (SBRT) for patients with medically inoperable primary renal cell carcinoma (RCC).

Detailed description

Primary renal cell carcinoma (RCC) is a common malignancy in Canada. The current standard of care for fit patients with localized RCC is surgical resection of the kidney (nephrectomy). RCC, however, affects predominately an older population with a median age at diagnosis of 65 years. Surgery is often not an option for these patients due to existing co-morbidities, and in an increasing environment of shared decision making in healthcare, some patients decline surgical resection and seek less invasive alternatives. Stereotactic body radiotherapy (SBRT) is a treatment approach that offers precise delivery of highly conformal radiotherapy to the tumour with minimal exposure to the surrounding normal tissues. SBRT is non-invasive and not limited by the size or location of kidney tumors like other ablative strategies. The worldwide experience of treating RCC with SBRT is growing and the results to date are promising. There is broader enthusiasm from both the radiation oncology and urology community to increase utilization of SBRT for RCC in non-surgical patients within the context of a well-designed prospective trial in Canada. The investigators will prospectively assess the efficacy, toxicity and impact on quality of life (QoL) of SBRT in the treatment of inoperable RCC

Interventions

RADIATIONStereotactic body radiotherapy

SBRT is a non-invasive treatment approach that delivers precise and highly conformal radiotherapy to the tumour with steep dose gradients that minimize exposure to the surrounding normal tissues.

Sponsors

Sunnybrook Health Sciences Centre
Lead SponsorOTHER
Juravinski Cancer Center
CollaboratorOTHER
Health Sciences North
CollaboratorOTHER
Grand River Regional Cancer Centre
CollaboratorOTHER
British Columbia Cancer Agency
CollaboratorOTHER
London Health Sciences Centre
CollaboratorOTHER
Durham Regional Cancer Centre
CollaboratorUNKNOWN

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Patients diagnosed with Inoperable Renal Cell Carcinoma

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients ≥18 years old * Newly diagnosed RCC by biopsy (preferred) or radiologic evidence of growth on surveillance over two consecutive assessments (6-12 months) * Primary lesion \>3 cm, or recurrent lesion following local ablative therapy * Medically inoperable or patient who refuses surgery following assessment by experienced urologist, and discussed in a multidisciplinary setting * ECOG 0-2 * Written informed consent * Participants must be able to understand the English-language or with the aid of a translator

Exclusion criteria

* Primary Lesion \>20cm * Evidence of distant metastatic disease * Previous abdominal RT in vicinity of kidney preventing definitive SBRT * History of major radiosensitivity syndrome * Second invasive malignancy within the past 3 years (excluding non-melanomatous skin cancer) * Currently pregnant or lactating

Design outcomes

Primary

MeasureTime frameDescription
Local Control at 2 years2 yearsLocal control at 2 years defined as the absence of progression of disease of the treated primary kidney cancer using Responsive Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1)

Secondary

MeasureTime frameDescription
Severity of late treatment-related toxicity6-60 monthsMaximum CTCAE grade recorded
Incidence of late treatment-related toxicity6-60 months post-SBRTAssessed using NCI CTCAE v4.0
Quality of life score (e.g., EPIC-26 or other tool)Months 3, 6, 9, 12, 18, 24, 36, 48, and 60 post-SBRTChange from baseline
Late ToxicityWeek 4-6 post-SBRTAssessed using NCI CTCAE v4.0

Countries

Canada

Contacts

CONTACTChris Zehr
chris.zehr@sunnybrook.ca416-480-6100
CONTACTKerri Durrant
keri.durrant@sunnybrook.ca416-480-6100
PRINCIPAL_INVESTIGATORWilliam Chu, MD, FRCPC

Sunnybrook Health Sciences Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 29, 2026