Individualized Lung Tumor Stereotactic Ablative Radiotherapy (iSABR)
Trial of Individualized Lung Tumor Stereotactic Ablative Radiotherapy (iSABR)
3 other identifiers
interventional
256
3 countries
4
Brief Summary
A research study of a procedure to treating lung cancer with focused radiation called Stereotactic Ablative Radiotherapy (SABR). The purpose of this study is to evaluate the effectiveness of individualizing the dose of radiation used to treat lung tumors with SABR based on tumor-specific factors. While recent research has identified SABR as a promising method to increase local control (LC) of lung cancer, further research has indicated that tumor volume is a prognostic factor, with increased size/volume of tumor being associated with poorer outcomes. This study explores if a volume-adapted strategy for the radiologic exposure (dose) will improve efficacy in larger tumors (ie, \> 10 cc). This is a study of the procedure stereotactic ablative radiotherapy (SABR). It is not a study of a specific drug or device.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Oct 2011
Longer than P75 for not_applicable
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 21, 2011
CompletedFirst Submitted
Initial submission to the registry
October 25, 2011
CompletedFirst Posted
Study publicly available on registry
November 1, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 2, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
February 7, 2022
CompletedResults Posted
Study results publicly available
December 19, 2024
CompletedDecember 19, 2024
November 1, 2024
8.2 years
October 25, 2011
June 13, 2024
November 27, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
Evaluate Local Tumor Control With Individually-optimized Stereotactic Ablative Radiotherapy (SABR) for Lung Tumors.
Local tumor control was assessed by CT, PET-CT, and, if appropriate, biopsy. The outcome was reported as the number of lesions that maintained tumor control for 1 year from the completion of Stereotactic Ablative Radiotherapy (SABR) treatment.
1 year
Secondary Outcomes (6)
Number of Participants With Treatment-Related Toxicity Following Individually-Optimized Stereotactic Ablative Radiotherapy (SABR) for Lung Tumors
1 year
Number of Participants Successfully Using an Optimized Breath-hold Technique During Stereotactic Ablative Radiotherapy (SABR) to Treat Lung Tumors
up to 2 years
Number of Participants With a Difference in Treatment Delivery Time Using an Optimized Breath-hold Technique During Stereotactic Ablative Radiotherapy (SABR)
up to 2 years
Number of Participants With Progression-free Survival (PFS)
up to 2 years
Number of Participants With Metastasis-free Survival (MFS)
2 years
- +1 more secondary outcomes
Study Arms (3)
Limited Primary Non-small Cell Lung Cancer (NSCLC)
EXPERIMENTALParticipants with limited primary NSCLCs (graded as T1aN0M0, T1bN0M0, T2aN0M0, T2bN0M0, or T3N0M0)
History of NSCLC
EXPERIMENTALParticipants with prior history of NSCLC and new limited primary NSCLC lesion(s)
Advanced Lung Cancer Including Metastatic Lung Cancer
EXPERIMENTALParticipants with more advanced lung cancer or lung metastases from a variety of different cancers.
Interventions
Radiotherapy procedure for participants with small peripheral tumors ≤ 10 cc.
Radiotherapy procedure for participants with medium peripheral tumors \> 10 cc and ≤ 30 cc.
Radiotherapy procedure for participants with large peripheral tumors \> 30 cc.
Radiotherapy procedure for participants with small central tumors ≤ 10 cc.
Radiotherapy procedure for participants with medium central tumors \> 10 cc and ≤ 30 cc.
Radiotherapy procedure for participants with large central tumors \> 30 cc.
Eligibility Criteria
You may qualify if:
- Limited primary non-small cell lung cancers (NSCLC) (ie, graded as T1aN0M0, T1bN0M0, T2aN0M0, T2bN0M0, or T3N0M0), or metastatic lung tumors with no evidence of uncontrolled extrathoracic metastases.
- Up to 4 lesions may be considered.
- For a single lesion, the sum of three orthogonal diameters can be no more than 20 cm.
- For multiple lesions, no lesion can have a sum of orthogonal diameters greater than 15 cm.
- Both peripheral and central tumors are accepted for this trial.
- Age ≥ 18 years old
- Patients may be enrolled more than once (eg, for a new tumor lesion)
You may not qualify if:
- Contraindication for radiotherapy
- Pregnant and breastfeeding women are excluded
- If prior radiation therapy, there is no overlap with the prior high dose regions (EXCEPTION: by approval of the investigators).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (4)
Stanford University Cancer Institute
Stanford, California, 94305, United States
Swedish Cancer Institute
Seattle, Washington, 98104, United States
Princess Margaret Cancer Center
Toronto, Ontario, ON M5G 2M9, Canada
Hokkaido University Hospital
Sapporo, Hokkaido, Japan
Related Publications (1)
Gensheimer MF, Gee H, Shirato H, Taguchi H, Snyder JM, Chin AL, Vitzthum LK, Maxim PG, Wakelee HA, Neal J, Das M, Chang DT, Kidd E, Hancock SL, Shultz DB, Horst KC, Le QT, Wong S, Brown E, Nguyen N, Liang R, Loo BW Jr, Diehn M. Individualized Stereotactic Ablative Radiotherapy for Lung Tumors: The iSABR Phase 2 Nonrandomized Controlled Trial. JAMA Oncol. 2023 Nov 1;9(11):1525-1534. doi: 10.1001/jamaoncol.2023.3495.
PMID: 37707820DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Maximilian Diehn, MD, PhD
- Organization
- Stanford University
Study Officials
- PRINCIPAL INVESTIGATOR
Maximilian Diehn, MD, PhD
Stanford University
- PRINCIPAL INVESTIGATOR
Bill Loo, MD, PhD
Stanford University
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Radiation Oncology (Radiation Therapy)
Study Record Dates
First Submitted
October 25, 2011
First Posted
November 1, 2011
Study Start
October 21, 2011
Primary Completion
January 2, 2020
Study Completion
February 7, 2022
Last Updated
December 19, 2024
Results First Posted
December 19, 2024
Record last verified: 2024-11
Data Sharing
- IPD Sharing
- Will not share