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Oligometastatic Renal Cell CarcinomaNCT02956798

SAbR For Oligometastatic Renal Cell Carcinoma

A study testing Stereotactic ablative body radiation (SABR) in people with Oligometastatic Renal Cell Carcinoma, run by University of Texas Southwestern Medical Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Hypothesis: Stereotactic ablative body radiation (SAbR) prolongs progression-free survival for patients with oligometastatic kidney cancer (RCC) and delays the initiation of systemic therapy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Oligometastatic Renal Cell Carcinoma
What is being tested?
Stereotactic ablative body radiation (SABR)
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
23 participants
Where
1 siteUnited States
Study dates
19 Jul 2018to 24 Jan 2024
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Metastatic renal cell carcinoma with limited measurable extracranial metastases (Limited metastases, or oligometastases, defined as ≤3 sites of metastasis).
  • Radiographic evidence of metastatic disease. CT should be performed within 30 days of registration.
  • Pathology confirmation of Renal cell carcinoma.
  • Prior surgery, or radiation is permitted.
  • Age ≥ 18 years.
  • Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, and for 90 days after Radiation treatment has been completed . Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
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  • A female of child-bearing potential is any woman (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria:
  • Has not undergone a hysterectomy or bilateral oophorectomy; or
  • Has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months).
  • Ability to understand and the willingness to sign a written informed consent and agrees to undergo image studies and follow up

Who cannot join

  • Subjects with brain metastasis as assessed by contrast MRI or contrast CT scans(contrast recommended).
  • Subjects with previous history of brain metastasis.
  • Subjects that received prior systemic therapy for kidney cancer in the past 1 year, except one line of immuno- or cytokine therapy (e.g. prior IL-2); systemic therapy for other cancers does not apply to this exclusion criteria
  • Subjects with ≥3 unfavorable prognostic factors defined by Motzer et al. (1999), (KPS <80% or ECOG>1, Hgb < LLN, LDH >1.5x normal, corrected serum calcium >10mg/dl and absence of prior nephrectomy), Patients with 0, 1-2, and ≥3 factors had time to death of 20 months, 10 months and 4 months.
  • Subjects with life expectancy < 6 months.
  • Subjects receiving any other investigational agents
  • Subjects must not be pregnant due to the potential for congenital abnormalities and the potential of this regimen to harm nursing infants.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Texas Southwestern Medical Center

    Dallas, Texas, 75390

Other trials in United States

About this study

Official title: Phase II Trial of SAbR for Patients With Oligometastatic Renal Cell Carcinoma

Hypothesis:

Stereotactic ablative body radiation (SAbR) prolongs progression-free survival for patients with oligometastatic kidney cancer (RCC) and delays the initiation of systemic therapy.

Read more

Primary Objectives:

  • To evaluate the delay in time to start of systemic therapy (TTST) as a surrogate of progression free survival (PFS), defined as the time from the first day of SAbR to start of systemic therapy.

Secondary Objective:

  • To evaluate the modified progression-free survival (mPFS) for patients with oligometastatic renal cell carcinoma who are treated with SAbR.
  • To evaluate the overall survival (OS)
  • To evaluate the cancer specific survival (CSS)
  • To evaluate the local control rate of irradiated lesions.
  • To measure the health-related quality of life (HRQOL).
Read the detailed description

The study is a prospective single institution phase II single-arm open-label trial evaluating SAbR in patients with newly diagnosed oligometastatic RCC.

Problem Statements:

  • Can local therapy (SAbR) safely delay the start of systemic therapy?
  • Safely delaying the start of systemic therapy can have significant quality of life benefits for patients since systemic therapy has significant side effects.
  • Can SAbR be curative in truly oligometastatic RCC patients?

Primary Endpoint:

  • Time to start of systemic therapy (TTST) defined as the time from the first day of SAbR to start of systemic therapy.

Secondary Endpoint:

  • Modified progression-free survival (mPFS) is defined as the survival interval without development of >3 sites of new metastasis, new sites of metastases that are not amenable to SAbR treatment, a total of >6 sites of metastasis that required SAbR, local failure at SAbR-treated site, or development of brain metastasis.
  • Overall Survival
  • Local control
  • Toxicity
  • HRQOL

Sample Size: 23 Patients will be enrolled.

Statistical Analysis: Time to event will be estimated using the Kaplan-Meier approach along with the 95% confidence interval.

Being tested
Stereotactic ablative body radiation (SABR)
Keywords
Renal Cell, Stereotactic ablative body radiotherapy (SAbR), Pazopanib, Oligo-mets

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Stereotactic ablative body radiation (SABR)Radiation

    SAbR treatment regimens including ≥25Gy x1 fraction, ≥12Gy x 3 fractions, or ≥8Gy x 5 fractions.

Study groups in NCT02956798
Study groupRoleWhat they receive
Stereotactic ablative body radiation (SABR)ExperimentalStereotactic ablative body radiation (SAbR) to all sites of measurable metastases (≤3) will be treated by SAbR. New sites of metastasis will be evaluated for continued treatment if deemed appropriate by both medical and radiation oncologists with SAbR.
Receives: Radiation: Stereotactic ablative body radiation (SABR)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants With Delay in Time to Start of Systemic Therapy (TTST)

    The percentage of participants with more than 1 year time to systemic therapy (TTST) will be reported for this outcome. Initiation of systemic therapy >1 year (delay in time) is a surrogate of progression free survival (PFS) and is defined as the time from the first day of SAbR to start of systemic therapy.

    Measured: 1 Year

Secondary outcomes (18)
  1. Modified Progression-free Survival (mPFS) for Patients Who Are Treated With SAbR

    Modified progression-free survival (mPFS) for patients with oligometastatic renal cell carcinoma who are treated with SAbR. Modified progression-free survival (mPFS) is defined as the survival interval without development of >3 sites of new metastasis, new sites of metastases that are not amenable to SAbR treatment, a total of >6 sites of metastasis that required SAbR, local failure at SAbR-treated site, or development of brain metastasis, with the definition of new metastasis and local failure (progression) as defined by RECIST. "Metastasis" in this entire protocol refers to extra-cranial metastasis unless otherwise specified.

    Measured: 5.7 years

  2. Progression-free Survival on Systemic Therapy (PFS-ST)

    To evaluate progression on next line of systemic therapy as defined by RECIST 1.1 starting from mPFS (modified progression free survival). Response and progression will be evaluated in this study using the new international criteria proposed by the Response Evaluation Criteria in Solid Tumors (RECIST v 1.1) Committee [Eur J Cancer. 2009;45(2):228-247]. Changes in only the largest diameter (unidimensional measurement) of the tumor lesions are used in the RECIST v1.1 criteria.

    Measured: 5.7 years

  3. Overall Survival (OS)

    Overall survival (OS), which is defined as the time between date of registration and the date of death due to any cause.

    Measured: 5.7 years

  4. Cancer Specific Survival (CSS)

    Cancer specific survival is defined as the time between date of registration and the date of death due to renal cell carcinoma.

    Measured: 5.7 years

  5. Local Control

    Radiographic progression with >30% increase in the longest diameter of the treated lesions.

    Measured: 5.7 years

  6. Median Response Duration

    Median response duration is defined as the time between the date a response (CR or PR) was first seen until date of progression. Response and progression will be evaluated in this study using the new international criteria proposed by the Response Evaluation Criteria in Solid Tumors (RECIST v 1.1) Committee [Eur J Cancer. 2009;45(2):228-247]. Changes in only the largest diameter (unidimensional measurement) of the tumor lesions are used in the RECIST v1.1 criteria.

    Measured: 1.8 years

  7. Time to Development of New Lesions

    Interval time to development of new lesions that can be treated with additional local therapy- title would be this or a shortened version of it. Time to event will be estimated using the Kaplan-Meier approach along with the 95% confidence interval.

    Measured: 5.7 years

  8. Time to Disease Progression That Cannot be Treated

    To measure the time interval from registration to time to disease progression that cannot be treated with further local therapy and need to initiate or switch systemic therapy. Time to event will be estimated using the Kaplan-Meier approach along with the 95% confidence interval.

    Measured: 5.7 years

  9. Toxicity Measurement

    Severity or Toxicity will be assessed according to the National Cancer Institute (NCI) Common Toxicity Criteria for Adverse Events (CTCAE), version 5.0. Events have been counted if they are considered related to the investigational intervention included "possible," "probable," and "definite." To ensure transparency, all AEs with "unlikely" or greater attribution are included.

    Measured: 5.7years

  10. Change in Health-related Quality of Life (HRQOL) FACT-G

    HRQOL will be measured using FACT-G questionnaire responses from baseline to certain time points (3, 9, 15,21,27,33 months) until the completion of follow ups. FACT-G is a measure that sums the functional wellbeing (FWB), physical wellbeing (PWB), the social/family well-being (S/FWB), and emotional wellbeing (EMB).FACT-G total score range (0-108); Higher values indicate a better HRQOL.

    Measured: [Baseline-3mon (months)];(Baseline-9mon.);(Baseline-15mon.); (Baseline-21mon.);(Baseline-27mon.);(Baseline-33mon.)

  11. Change in Health-related Quality of Life (HRQOL) EQ-VAS

    HRQOL will be measured using EQ-VAS (EuroQol- Visual analog scale) questionnaire at baseline and at specific timepoints (3,9,15,21,27,33 months) until the completion of follow ups. The EQ-VAS is a global measure of patient perception of their health ranging from 0-100, with 0 being the worst health they can imagine, and 100 being the best health they can imagine.

    Measured: [Baseline-3mon (months)];(Baseline-9mon.);(Baseline-15mon.); (Baseline-21mon.);(Baseline-27mon.);(Baseline-33mon.)

  12. Change in Health-related Quality of Life (HRQOL) EQ-5D at 3 Months

    HRQOL will be measured using EQ-5D (EuroQol- 5 Dimension) questionnaire at baseline and at certain specific timepoints (3,9,15,21,27,33 months) until the completion of follow ups. EQ-5D-5L is a self-assessed, health related, quality of life questionnaire. The scale measures quality of life on a 5-component scale including the domains - mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.

    Measured: Baseline, 3months

  13. Change in Health-related Quality of Life (HRQOL) EQ-5D at 9 Months

    HRQOL will be measured using EQ-5D (EuroQol- 5 Dimension) questionnaire at baseline and at certain specific timepoints (3,9,15,21,27,33 months) until the completion of follow ups. EQ-5D-5L is a self-assessed, health related, quality of life questionnaire. The scale measures quality of life on a 5-component scale including the domains - mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.

    Measured: Baseline, 9 months

  14. Change in Health-related Quality of Life (HRQOL) EQ-5D at 15 Months

    HRQOL will be measured using EQ-5D (EuroQol- 5 Dimension) questionnaire at baseline and at certain specific timepoints (3,9,15,21,27,33 months) until the completion of follow ups. EQ-5D-5L is a self-assessed, health related, quality of life questionnaire. The scale measures quality of life on a 5-component scale including the domains - mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.

    Measured: Baseline, 15 months

  15. Change in Health-related Quality of Life (HRQOL) EQ-5D at 21 Months

    HRQOL will be measured using EQ-5D (EuroQol- 5 Dimension) questionnaire at baseline and at certain specific timepoints (3,9,15,21,27,33 months) until the completion of follow ups. EQ-5D-5L is a self-assessed, health related, quality of life questionnaire. The scale measures quality of life on a 5-component scale including the domains - mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.

    Measured: Baseline, 21 months

  16. Change in Health-related Quality of Life (HRQOL) EQ-5D at 27 Months

    HRQOL will be measured using EQ-5D (EuroQol- 5 Dimension) questionnaire at baseline and at certain specific timepoints (3,9,15,21,27,33 months) until the completion of follow ups. EQ-5D-5L is a self-assessed, health related, quality of life questionnaire. The scale measures quality of life on a 5-component scale including the domains - mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.

    Measured: Baseline, 27 months

  17. Change in Health-related Quality of Life (HRQOL) EQ-5D at 33 Months

    HRQOL will be measured using EQ-5D (EuroQol- 5 Dimension) questionnaire at baseline and at certain specific timepoints (3,9,15,21,27,33 months) until the completion of follow ups. EQ-5D-5L is a self-assessed, health related, quality of life questionnaire. The scale measures quality of life on a 5-component scale including the domains - mobility, self-care, usual activities, pain/discomfort, and anxiety/depression.

    Measured: Baseline, 33 months

  18. Change in Health-related Quality of Life (HRQOL) FKSI

    HRQOL will be measured using FKSI questionnaire at baseline and at certain specific timepoints (3,9,15,21,27,33 months) until the completion of follow ups. FKSI adds to the FACT-G (27 items) by including 15 items specific to kidney cancer patients. FKSI is a questionnaire for FACT-Kidney Symptom Index used to assess QoL/participant-reported outcomes for participants diagnosed with renal cell cancer. The FKSI contained 15 questions each ranging from 0 (not at all) to 4 (very much) so that FKSI ranged between 0-60 where higher scores reflects better functioning and fewer symptoms.

    Measured: [Baseline-3mon (months)];(Baseline-9mon.);(Baseline-15mon.); (Baseline-21mon.);(Baseline-27mon.);(Baseline-33mon.)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Nov 2016 (estimated)
  2. Study start19 Jul 2018
  3. Primary completion24 Jan 2024
  4. Study completion24 Jan 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
23 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02956798
Sponsor's protocol ID
STU 042016-046
Status last verified
Aug 2026
First submitted
26 Oct 2016
Last updated
31 Aug 2026
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Stereotactic ablative body radiation (SABR) in people with Oligometastatic Renal Cell Carcinoma, run by University of Texas Southwestern Medical Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 31 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 31 Aug 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants With Delay in Time to Start of Systemic Therapy (TTST) (time frame: 1 Year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Aug 2026.

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