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Prospective Observational Trial of Image-guided Ablative STereotactic bOdy Radiation Therapy for Primary kidNey Cancer: the STONE Trial

Prospective Observational Trial of Image-guided Ablative STereotactic bOdy Radiation Therapy for Primary kidNey Cancer: the STONE Trial

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07299357
Enrollment
53
Registered
2025-12-23
Start date
2026-01-01
Completion date
2033-12-01
Last updated
2026-01-21

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

Conditions

Renal Cancer

Keywords

renal cancer, stereotactic body radiotherapy, radiotherapy, cancer treatment, renal cancer treatment, surgery

Brief summary

The study objective is to evaluate the use of Stereotactic Body Radiotherapy (high dose of radiation in a few fractions) to cure primary renal cancer in those patients that are not indicated to surgery (high risk of complications, refusal of the patient). This therapy is already used in clinical setting for many tumors with good tolerance as it is not invasive, does not require anesthesia and hospitalization making it suitable for elderly people and frail patients. However there are not enough information regarding the use of ablative doses for the cure of renal cancer and for this reason this study aims to support the use of Stereotactic Body Radiotherapy as a standard of care for inoperable primary renal tumor. This is an observational study, so it collects data from clinical pratice only and does not request study specific procedures.

Interventions

RADIATIONStereotactic body radiotherapy (SBRT)

high dose radiation in few fractions

Sponsors

Istituto Clinico Humanitas
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* Age ≥ 18 years * ECOG performance status 0 - 2 * Histologically confirmed diagnosis of primary RCC * cT1 stage tumor with single lesion with maximum diameter of 7 cm * Medically inoperable or at high risk of complication from surgery, or declined surgery * Absence of metastatic disease * Written informed consent

Exclusion criteria

* Estimated glomerular filtration rate (eGFR) \< 30 mls/min * Previous radiotherapy on the same site * Previous systemic therapy for RCC * Tumor diameter larger than 7 cm * Presence of metastatic disease * Life expectancy \< 3 months

Design outcomes

Primary

MeasureTime frameDescription
evaluate LC of treated lesions at 1 yearfrom end of treatment to 1 yearlocal progression is defined as an enlargement of at least 20% relative and 5 mm absolute increase of sum of diameters of target lesions compared to baseline at least after 6 months from treatment end

Secondary

MeasureTime frameDescription
to assess acute and late toxicityfrom start of treatment to 3 yearsevaluate the presence of toxicities to treatment according to CTCAE 4.03
To assess kidney function with serum creatininefrom start of treatment to 3 yearsevaluating serum creatinine at each follow up visit through blood analysis (mg/dL)
Progression Free Survival (PFS)from end of treatment to 1 yearto asses through standard imaging according to clinical practice - The length of time during and after the treatment of cancer that a patient lives with the disease but it does not get worse
metastasis free survivalfrom end of treatment to 3 yearsto asses through standard imaging according to clinical practice - The length of time from the start of treatment for cancer that a patient is still alive and the cancer has not spread to other parts of the body
Overall Survivalfrom end of treatment to 3 yearsto asses through standard imaging according to clinical practice - The length of time from the start of cancer treatment during which patients diagnosed with the disease are still alive.
To asses Quality of Lifefrom start of treatment to 3 yearsThrough QLQ-C30 questionnarie we will evaluate quality of life, patient will answer different questions crossing the number that is more suitable regarding their condition (the patient can respond by crossing a number from 1 to 4, 1 = excellent quality of life, 4 = terrible quality of life)
To assess kidney function with estimated glomerular filtration ratefrom start of treatment to 3 yearsevaluating eGFR at each follow up visit through blood analysis (ml/min)

Countries

Italy

Contacts

CONTACTCiro Franzese, MD, radiation oncologist
ciro.franzese@hunimed.eu+39 0282247454
CONTACTLaura Bonavita, Master's degree
laura.bonavita@humanitas.it+390282247026

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026