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Daily Online Adaptation Versus Localization for MRI-Guided SBRT for Unresectable Primary or Oligometastatic Abdominal Malignancies

A Randomized Controlled Phase II Study of Daily Online Adaptation Versus Localization for MRI-Guided SBRT for Unresectable Primary or Oligometastatic Abdominal Malignancies

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02950025
Enrollment
5
Registered
2016-10-31
Start date
2017-01-19
Completion date
2018-03-19
Last updated
2019-04-03

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

Conditions

Cancer of the Pancreas, Hepatocellular Carcinoma, Pancreas Cancer, Pancreatic Cancer

Brief summary

In light of this new technology and preliminary findings of low toxicity of online, adaptive, magnetic resonance (M)-guided stereotactic radiation on a single arm prospective study, the investigators propose to compare this technique to online MR-guided stereotactic body radiation therapy (SBRT) without adaptation. Online plan adaptation increases treatment times for patients and comprises an increased burden on technical and clinical staff. Although preliminary trial results are encouraging, it remains unclear if the dosimetric benefits of online-adaptive planning studies will translate to measurable improvements in clinical outcomes that merit its routine use. In our preliminary study, plan adaptation was most often required when tumors were adjacent to the gastrointestinal tract (the esophagus to the sigmoid colon), as those structures were most commonly the dose-limiting structures and were noted to change in location on a day-to-day basis. For these reasons, abdominal disease sites have historically highlighted the limitations of SBRT. Specifically, the investigators will enroll patients with oligometastatic or unresectable primary disease of the non-liver abdomen to a randomized, prospective trial. Patients will be randomized to one of two treatment arms, in which they will receive either online-adaptive, MRI-guided SBRT or non-adaptive MRI-guided SBRT. Both patient groups will undergo MRI simulation and MRI treatment localization with online MR monitoring and/or gating. All patients will be treated in five fractions over one to two weeks. By adhering to strict normal tissue constraints, the investigators expect toxicity to be within the current standard of care for the non-adaptive arm, with reduction in toxicity in the arm of patients who undergo adaptation based on daily anatomic changes.

Interventions

DEVICEOnline, adaptive MR-guided SBRT

Patients randomized to the online-adaptive treatment planning arm will have all tumor volumes and critical structures within 3 axial slices of the PTV re-contoured on the MR-localization image of the day. The estimated delivered dose should be calculated using the software on the console. An adapted radiation therapy plan should be generated

DEVICEOnline, non-adaptive MR-guided SBRT

Patients will not have online-adaptive treatment planning

OTHEREuropean Organization for Research and Treatment of Cancer (EORTC) QLQ-30

* 30 questions * 28 questions about various health issues with answers ranging from 1=Not At All to 4 = Very Much * 1 question asking about overall health with answers ranging from 1=very poor to 7 excellent * 1 question asking about overall quality of life with answers ranging from 1=very poor to 7=excellent

Sponsors

Washington University School of Medicine
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Oligometastatic disease or unresectable primary abdominal malignancy with biopsy-proven primary disease histology of solid tumor categorization. Patients with a diagnosis of hepatocellular carcinoma do not require a biopsy. * No more than three progressive sites of disease, with at least one of the disease sites to be deemed suitable for treatment with MRI-guided, online adaptive SBRT to the non-liver abdomen as per radiation oncology evaluation. * Must be treated per protocol to lesion(s) of a single abdominal site that can reasonably be encompassed within a single treatment field. Treatment of additional site(s) outside of the abdomen while the patient is on trial is acceptable. * The treated lesion must be within 2 cm of the abdominal gastrointestinal tract (abdominal esophagus to sigmoid colon) on the basis of cross sectional imaging study such as computed tomography (CT), positron emission tomography (PET)/CT, or MRI. * Must be deemed medically fit for SBRT by the treating physician. * At least 18 years of age. * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 * Must have completed any systemic therapy at least one week prior to planned start of SBRT (two weeks preferred), and must have no plans to initiate systemic therapy for at least one week following end of SBRT (two weeks preferred). * Women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately. * Able to understand and willing to sign an Institutional Review Board (IRB) approved, written informed consent document (or that of legally authorized representative, if applicable).

Exclusion criteria

* Primary disease of hematologic origin, lymphoma, or small cell cancer. * Past history of external beam radiotherapy within the projected treatment field of any of the disease sites to be treated by MRI-guided, online adaptive SBRT. * Currently receiving any other investigational agents. * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia. * Pregnant and/or breastfeeding. Patient must have a negative pregnancy test within 14 days of study entry. * Medical contraindication to undergoing MR imaging.

Design outcomes

Primary

MeasureTime frameDescription
Number of Grade 3 or Greater Toxicity Occurring in Patients Receiving Online, Adaptive, MRI-guided SBRT to the Abdomen and in Patients Receiving Non-adaptive SBRTUp through 6 months post-treatment (approximately 6 months and 2 weeks)* The descriptions and grading scales found in the revised NCI Common Terminology Criteria for Adverse Events (CTCAE) version 4.0 will be utilized for all toxicity reporting. * Grade 3 or higher toxicities that did not predate SBRT and are probably or definitely attributable to treatment * Please note that the following statistical analysis was not performed due to small sample size: Statistical analysis will be powered to detect a reduction of toxicity from 35% Grade 3 or greater toxicity to 10% Grade 3 or greater toxicity using online-adaptive therapy. Statistical analysis will be one-sided test for independent proportions.

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS) RateAt six month follow-up (approximately 6 months and 2 weeks)-up* PFS rate - the number of participants who have not progressed and/or died at the six-month follow-up * Progressive Disease (PD): At least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. * Please note that the planned statistical analysis wasn't able to be performed due to small sample size: Utilizing Kaplan-Meier methodology
Disease Free Survival RateAt six month follow-up (approximately 6 months and 2 weeks)* Disease free survival rate = the number of participants who are disease free (without any signs or symptoms of cancer) at the six-month follow-up * Please note that the planned statistical analysis wasn't able to be performed due to small sample size: Utilizing Kaplan-Meier methodology.
Tumor Response RateAt six month follow-up (approximately 6 months and 2 weeks)* Tumor response rate = rate of participants who have complete or partial response at the six month follow-up * Complete Response (CR): Disappearance of the target lesion. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. * Partial Response (PR): At least a 30% decrease in the (sum of the) diameter of the target lesion(s), taking as reference the baseline sum diameters.
Patient Reported Overall Quality of Life During the Past Week as Measured by EORTC QLQ-C30 Quality of LifePre-treatment, six-weeks post treatment, and six months post-treatment* Utilize both paired t-tests and repeated measures ANOVA to analyze QOL data (this was unable to be performed due to the small sample size) * The question asked the participant how would you rate your quality of life during the past week? * The scale ranges from 1=very poor to 7 = excellent. The higher the score the better the quality of life.
Number of Participants With Local FailureAt six month follow-up (approximately 6 months and 2 weeks)
Overall Survival (OS) RateAt six month follow-up (approximately 6 months and 2 weeks)* Overall survival rate - number of participants alive at the six-month follow-up * Please note that the planned statistical analysis wasn't able to be performed due to small sample size: Utilizing Kaplan-Meier methodology.

Countries

United States

Participant flow

Recruitment details

The study opened to participant enrollment on 01/19/2017 and closed to participant enrollment on 08/13/2018.

Participants by arm

ArmCount
Arm A: Online Non-adaptive MRI-guided SBRT
* All patients will be initially planned for stereotactic body radiation therapy to a minimum dose of 50Gy in five fractions to the planning target volume (PTV) * Radiotherapy will consist of stereotactic body therapy, to be given over five fractions, delivered once daily or once every other day for a period of one to two weeks, for a total of five treatments * All patients will undergo both CT and MRI simulation in positioning appropriate for the specific treatment site * Quality of life questionnaire baseline, 6 weeks after treatment conclusion, and 6 months after treatment conclusion
2
Arm B: Online-Adaptive MRI-guided SBRT
* All patients will be initially planned for stereotactic body radiation therapy to a minimum dose of 50Gy in five fractions to the planning target volume (PTV) * Radiotherapy will consist of stereotactic body therapy, to be given over five fractions, delivered once daily or once every other day for a period of one to two weeks, for a total of five treatments * All patients will undergo both CT and MRI simulation in positioning appropriate for the specific treatment site * When patients present for their first SBRT treatment session, the treating physician will evaluate their individual anatomy to determine if adaptive planning is indicated. Patients randomized to the online-adaptive treatment planning arm will have all tumor volumes and critical structures within 3 axial slices of the PTV re-contoured on the MR-localization image of the day * Quality of life questionnaire baseline, 6 weeks after treatment conclusion, and 6 months after treatment conclusion
3
Total5

Baseline characteristics

CharacteristicArm A: Online Non-adaptive MRI-guided SBRTTotalArm B: Online-Adaptive MRI-guided SBRT
Age, Continuous68.5 years75 years85 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants5 Participants3 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants1 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
1 Participants4 Participants3 Participants
Region of Enrollment
United States
2 Participants5 Participants3 Participants
Sex: Female, Male
Female
2 Participants3 Participants1 Participants
Sex: Female, Male
Male
0 Participants2 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 20 / 3
other
Total, other adverse events
0 / 21 / 3
serious
Total, serious adverse events
0 / 21 / 3

Outcome results

Primary

Number of Grade 3 or Greater Toxicity Occurring in Patients Receiving Online, Adaptive, MRI-guided SBRT to the Abdomen and in Patients Receiving Non-adaptive SBRT

* The descriptions and grading scales found in the revised NCI Common Terminology Criteria for Adverse Events (CTCAE) version 4.0 will be utilized for all toxicity reporting. * Grade 3 or higher toxicities that did not predate SBRT and are probably or definitely attributable to treatment * Please note that the following statistical analysis was not performed due to small sample size: Statistical analysis will be powered to detect a reduction of toxicity from 35% Grade 3 or greater toxicity to 10% Grade 3 or greater toxicity using online-adaptive therapy. Statistical analysis will be one-sided test for independent proportions.

Time frame: Up through 6 months post-treatment (approximately 6 months and 2 weeks)

ArmMeasureValue (NUMBER)
Arm A: Online Non-adaptive MRI-guided SBRTNumber of Grade 3 or Greater Toxicity Occurring in Patients Receiving Online, Adaptive, MRI-guided SBRT to the Abdomen and in Patients Receiving Non-adaptive SBRT0 adverse event
Arm B: Online-Adaptive MRI-guided SBRTNumber of Grade 3 or Greater Toxicity Occurring in Patients Receiving Online, Adaptive, MRI-guided SBRT to the Abdomen and in Patients Receiving Non-adaptive SBRT1 adverse event
Secondary

Disease Free Survival Rate

* Disease free survival rate = the number of participants who are disease free (without any signs or symptoms of cancer) at the six-month follow-up * Please note that the planned statistical analysis wasn't able to be performed due to small sample size: Utilizing Kaplan-Meier methodology.

Time frame: At six month follow-up (approximately 6 months and 2 weeks)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm A: Online Non-adaptive MRI-guided SBRTDisease Free Survival Rate0 Participants
Arm B: Online-Adaptive MRI-guided SBRTDisease Free Survival Rate0 Participants
Secondary

Number of Participants With Local Failure

Time frame: At six month follow-up (approximately 6 months and 2 weeks)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm A: Online Non-adaptive MRI-guided SBRTNumber of Participants With Local Failure0 Participants
Arm B: Online-Adaptive MRI-guided SBRTNumber of Participants With Local Failure0 Participants
Secondary

Overall Survival (OS) Rate

* Overall survival rate - number of participants alive at the six-month follow-up * Please note that the planned statistical analysis wasn't able to be performed due to small sample size: Utilizing Kaplan-Meier methodology.

Time frame: At six month follow-up (approximately 6 months and 2 weeks)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm A: Online Non-adaptive MRI-guided SBRTOverall Survival (OS) Rate2 Participants
Arm B: Online-Adaptive MRI-guided SBRTOverall Survival (OS) Rate3 Participants
Secondary

Patient Reported Overall Quality of Life During the Past Week as Measured by EORTC QLQ-C30 Quality of Life

* Utilize both paired t-tests and repeated measures ANOVA to analyze QOL data (this was unable to be performed due to the small sample size) * The question asked the participant how would you rate your quality of life during the past week? * The scale ranges from 1=very poor to 7 = excellent. The higher the score the better the quality of life.

Time frame: Pre-treatment, six-weeks post treatment, and six months post-treatment

ArmMeasureGroupValue (MEAN)
Arm A: Online Non-adaptive MRI-guided SBRTPatient Reported Overall Quality of Life During the Past Week as Measured by EORTC QLQ-C30 Quality of Life6-weeks post treatment6 score on a scale
Arm A: Online Non-adaptive MRI-guided SBRTPatient Reported Overall Quality of Life During the Past Week as Measured by EORTC QLQ-C30 Quality of Life6 months post treatment6 score on a scale
Arm A: Online Non-adaptive MRI-guided SBRTPatient Reported Overall Quality of Life During the Past Week as Measured by EORTC QLQ-C30 Quality of LifePre-treatment5 score on a scale
Arm B: Online-Adaptive MRI-guided SBRTPatient Reported Overall Quality of Life During the Past Week as Measured by EORTC QLQ-C30 Quality of Life6-weeks post treatment4 score on a scale
Arm B: Online-Adaptive MRI-guided SBRTPatient Reported Overall Quality of Life During the Past Week as Measured by EORTC QLQ-C30 Quality of LifePre-treatment5 score on a scale
Arm B: Online-Adaptive MRI-guided SBRTPatient Reported Overall Quality of Life During the Past Week as Measured by EORTC QLQ-C30 Quality of Life6 months post treatment3 score on a scale
Secondary

Progression-free Survival (PFS) Rate

* PFS rate - the number of participants who have not progressed and/or died at the six-month follow-up * Progressive Disease (PD): At least a 20% increase in the sum of the diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. * Please note that the planned statistical analysis wasn't able to be performed due to small sample size: Utilizing Kaplan-Meier methodology

Time frame: At six month follow-up (approximately 6 months and 2 weeks)-up

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm A: Online Non-adaptive MRI-guided SBRTProgression-free Survival (PFS) Rate2 Participants
Arm B: Online-Adaptive MRI-guided SBRTProgression-free Survival (PFS) Rate3 Participants
Secondary

Tumor Response Rate

* Tumor response rate = rate of participants who have complete or partial response at the six month follow-up * Complete Response (CR): Disappearance of the target lesion. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. * Partial Response (PR): At least a 30% decrease in the (sum of the) diameter of the target lesion(s), taking as reference the baseline sum diameters.

Time frame: At six month follow-up (approximately 6 months and 2 weeks)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm A: Online Non-adaptive MRI-guided SBRTTumor Response Rate2 Participants
Arm B: Online-Adaptive MRI-guided SBRTTumor Response Rate0 Participants

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