Stereotactic Ablative Radiation for Oligo-Progression of Urothelial Cancer (SAbR)
A Phase II Trial of Stereotactic Ablative Radiation (SAbR) for Urothelial Cancer Patients With Progression While on Anti-PD-1/PD-L1 Immunotherapy
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
Texas
-
Dallas, Texas, United States, 75390
- Aurelie Garant
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients must be at least 18-years-old
- ECOG performance status 0-2
- Patients must have pathology-proven metastatic urothelial carcinoma, with tissue sampling of at least the primary tumor. Tissue sampling of each presumed metastatic site is not necessary, provided that the patient already has a confirmed diagnosis of urothelial cancer.
Patients must be on immune checkpoint inhibitor therapy with radiographic scans to verify oligo-progression of at least one and ≤ 6 sites of disease per RECIST 1.1.
- Any of the currently FDA-approved PD-1/PD-L1 inhibitors are allowed. These include pembrolizumab, nivolumab, atezolizumab, avelumab, and durvalumab.
- At least 1 metastatic lesion must show stable disease, partial response or complete response per RECIST 1.1.
- Patients must be able to understand and willing to sign written informed consent.
- Patients must have acceptable tolerability of ongoing therapy as decided by the treating medical oncologist.
- Patients must have a desire to continue ongoing therapy.
- 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, for the duration of study participation, and for 90 days following completion of therapy.
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).
- Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
Exclusion Criteria:
- Inability to receive further immune checkpoint inhibitor therapy
- Anticipated survival of fewer than 12 weeks
- Daily steroid requirement of > 10 mg prednisone or prednisone-equivalent. Steroid replacement therapy for adrenal insufficiency is permitted.
- Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that, in the opinion of the investigator, would limit compliance with study requirements.
- Subjects must not be pregnant or nursing due to the potential for congenital abnormalities and the potential of this regimen to harm nursing infants.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: SAbR 6 measurable lesions
PD-L1 assessment on biopsy of metastatic site (biopsy will be performed if no prior metastasis sample available)
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A stereotactic relocalization system that relies upon stereoscopic radiographs, implanted fiducials, or near real-time CT based verification will be used.Investigators will have the discretion to choose from biologically equivalent dose levels using 1, 3 or 5 fractions.
All active lesions need to be addressed by local therapy
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Progression free survival (PFS) at 6 months
Time Frame: 6 months
|
Progression free survival (PFS) at 6 months in the patients for whom SAbR is added to the ICI after progression on ICI.
PFS will be defined as the combination of progressive disease from SAbR start date and death from any cause.
|
6 months
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
The disease control rate
Time Frame: 6 months
|
The disease control rate in patients for whom SAbR is added to ICI after progression on ICI.
DCR will be assessed per RECIST 1.1 criteria and defined as the combination of: Complete Response (CR), Partial Response (PR), or Stable Disease (SD).
|
6 months
|
|
The time to next-line systemic therapy
Time Frame: 6 months
|
The time to initiation of next-line systemic therapy following the addition of SAbR to ICI after progression on ICI.
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6 months
|
|
Overall survival of patients
Time Frame: 6 months
|
The overall survival of patients since progression on ICI or at the study registration.
Overall survival (OS) will be defined using the interval between enrollment and death from any cause.
|
6 months
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Aurelie Garant, University of Texas Medical Center
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
Other Study ID Numbers
- 2019-1506
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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