Maximal Ablative Irradiation Because of Encasement (MAIBE) for Patients With Potentially Resectable Locally Advanced Pancreatic Cancer
Overview
- Phase
- Phase 2
- Intervention
- Hypofractionated ablative IMRT (HFA-IMRT)
- Conditions
- Pancreatic Cancer
- Sponsor
- Memorial Sloan Kettering Cancer Center
- Enrollment
- 47
- Locations
- 8
- Primary Endpoint
- The proportion of patients who undergo definitive surgery
- Status
- Active, not recruiting
- Last Updated
- last year
Overview
Brief Summary
This study is being done to test whether receiving a dose of radiation that is higher than the standard dose, in combination with chemotherapy, improves the chance of becoming a candidate for surgery and improves the chance of extending the patient's life.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Histologically or cytopathologically confirmed adenocarcinoma of the pancreas.
- •Locally advanced, unresectable pancreatic cancer defined on post-induction chemotherapy CT as having tumor involvement of \>180° (\> 50%) of the circumference of the superior mesenteric artery (SMA) or celiac axis, unreconstructable superior mesenteric vein (SMV) or PV involvement.
- •No evidence of distant metastasis either prior to or after induction chemotherapy.
- •Completion of at least 3 months of standard induction chemotherapy for LAPC, which may include FOLFIRINOX or gemcitabine and nab-paclitaxel, within 6 weeks of enrollment.
- •For patients currently receiving investigational agents, a washout of at least 2 weeks or 5 half-lives of experimental agent are required prior to the start of RT.
- •Age ≥18 years.
- •Patients must have acceptable organ and marrow function as defined below:
- •Leukocytes \>3,000/µL
- •Absolute neutrophil count \>1,500/µL
- •Platelets \>75,000/µL
Exclusion Criteria
- •Patients who have borderline resectable disease using NCCN definition.
- •Patients who have had prior abdominal radiotherapy.
- •Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia.
- •Patients who are not surgical candidates due to medical co-morbidities.
- •Patients in whom iodine contrast is contraindicated.
- •Pregnant and breastfeeding women are excluded. Women of child-bearing potential who are unwilling or unable to use an acceptable method of birth control to avoid pregnancy for the entire study period and for up to 4 weeks after the study are excluded. This applies to any woman who has experienced menarche and who has not undergone successful surgical sterilization or is not postmenopausal (defined as amenorrhea for at least 12 consecutive months, or women on hormone replacement therapy with serum FSH levels greater than 35 mIU/mL. A negative serum pregnancy test must be obtained within 14 days prior to the start of study therapy in all women of child-bearing potential. Male subjects must also agree to use effective contraception for the same period as above.
Arms & Interventions
HFA-IMRT
Eligible patients will receive HFA-IMRT to a total dose of 67.5 Gy in 15 fractions or 75Gy in 25 fractions to areas of gross tumor with concurrent capecitabine. Cross-sectional imaging will be repeated 4-6 weeks after the end of CRT to assess for resectability.
Intervention: Hypofractionated ablative IMRT (HFA-IMRT)
HFA-IMRT
Eligible patients will receive HFA-IMRT to a total dose of 67.5 Gy in 15 fractions or 75Gy in 25 fractions to areas of gross tumor with concurrent capecitabine. Cross-sectional imaging will be repeated 4-6 weeks after the end of CRT to assess for resectability.
Intervention: capecitabine
Outcomes
Primary Outcomes
The proportion of patients who undergo definitive surgery
Time Frame: 2 years
The proportion of patients who undergo definitive surgery will be used to evaluate efficacy of HFA-IMRT in improving rates of resectability as compared to historical controls.