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Study of Proton Therapy in Adjuvant Pancreatic Cancer

Phase I Study of Proton Therapy in Adjuvant Pancreatic Cancer (Proton-PANC)

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03885284
Acronym
Proton-PANC
Enrollment
9
Registered
2019-03-21
Start date
2019-07-15
Completion date
2023-11-08
Last updated
2024-10-24

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

Conditions

Resected Pancreatic Adenocarcinoma

Keywords

Pancreas, Radiation, mFOLFIRINOX

Brief summary

This trial aims to determine a safe schedule of short-course proton beam radiation therapy with adjuvant mFOLFIRINOX for patients with resected pancreatic adenocarcinoma.

Detailed description

The investigators hypothesize that resected pancreatic cancer patients will benefit from enhanced local control with the addition of radiation therapy to adjuvant FFX. The recently reported PRODIGE 24 study, demonstrated that 12 cycles of adjuvant FFX without radiation therapy significantly improved survival and time to metastatic failure rates as compared to GEM alone. Excessive distant failures rates using prior adjuvant systemic therapies, may have limited the impact of radiation therapy; therefore, improvements in systemic control can increase the benefit of local control. In this study, the investigators utilize 5 fraction PRT, delivered over 1 week, during adjuvant FFX (between cycles 6 and 7) to minimize the interruptions in chemotherapy as well as to reduce the length of time from surgical resection to initiating adjuvant radiation therapy. Conventional radiation therapy is typically delivered over 5 weeks and is commonly given after the completion of adjuvant chemotherapy. Conventional radiation therapy cannot be given concurrently with FFX due to the synergistic toxicities. In contrast, PRT significantly reduces the exposure of normal tissues to the effects of radiation therapy and has been safely delivered using a 5 fraction schedule with chemotherapy, as previously discussed. Chemotherapy will consist of mFOLFIRINOX in 14-day cycles x 12 as used in the PRODIGE 24 study: * Irinotecan 150 mg/m2 IV day 1 * Oxaliplatin 85 mg/m2 IV day 1 * Leucovorin 400 mg/m2 IV day 1 * 5-fluorouracil 2,400 mg/m2 IV days 1-3 (no bolus) * Pegfilgrastim 6 mg SC on-body injector day 3 (optional, up to investigator's discretion, can alternatively do day 4 without on-body injector) * Suggested supportive care medications: fosaprepitant 150 mg IV day 1, dexamethasone 12 mg IV day 1, ondansetron 16 mg IV day 1, dexamethasone 4 mg PO q AM days 2-3, ondansetron 8 mg PO BID days 2-3. * Dose adjustments will be permitted at the discretion of the treating oncologist based on patients' prior tolerability to FFX * Proton radiation will consistent of 5 daily doses of 5 GyE total, ideally administered Monday through Friday but can be administered within 7 business days, between cycles 6 and 7

Interventions

DRUGmFOLFIRINOX

Chemotherapy will consist of mFOLFIRINOX in 14-day cycles x 12 as used in the PRODIGE 24 study: * Irinotecan 150 mg/m2 IV day 1 * Oxaliplatin 85 mg/m2 IV day 1 * Leucovorin 400 mg/m2 IV day 1 * 5-fluorouracil 2,400 mg/m2 IV days 1-3 (no bolus) * Pegfilgrastim 6 mg SC on-body injector day 3 (optional, up to investigator's discretion, can alternatively do day 4 without on-body injector) * Suggested supportive care medications: fosaprepitant 150 mg IV day 1, dexamethasone 12 mg IV day 1, ondansetron 16 mg IV day 1, dexamethasone 4 mg PO q AM days 2-3, ondansetron 8 mg PO BID days 2-3.

Proton beam radiation will consist of 5 daily doses of 5 GyE total, ideally administered Monday through Friday but can be administered within 7 business days, between cycles 6 and 7

Sponsors

Georgetown University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Undergone pancreaticoduodenectomy with curative intent * Pathologically-confirmed pancreatic adenocarcinoma of the pancreatic head (adenocarcinoma must be the predominant component of the histology) * Completed 2 cycles of adjuvant chemotherapy composed of 5-fluorouracil, leucovorin, oxaliplatin, and irinotecan * Complete resection (R0) or resection with microscopic positive magins (R1) * Adequate healing post-operatively * Bone marrow function: absolute neutrophil count (ANC) ≥ 1,500/mm3; Platelets ≥ 100 × 109/L; hemoglobin ≥ 9.0 g/dL. Patients may have a transfusion of red blood cells to meet the hemoglobin requirement. * Renal function: serum creatinine ≤ 1.5 × upper normal limit of institution's normal range or creatinine clearance ≥ 30 mL/min for subjects with creatinine levels above institutional normal * Hepatic function: AST and ALT ≤ 3.0 × the upper normal limit of institution's normal range. Total bilirubin ≤ 1.5 × the upper normal limit of institution's normal range. * Partial Thromboplastin Time (PTT) must be ≤ 1.5 × upper normal limit of institution's normal range and INR (International Normalized Ratio) \< 1.5. Subjects on anticoagulant (such as warfarin) will be permitted to enroll as long as the INR is in the acceptable therapeutic range as determined by the investigator. * Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) of 0-1 * Prior neoadjuvant chemotherapy is alllowed * Patients must have fully recovered from all effects of surgery. Patients must have had at least two weeks after minor surgery and four weeks after major surgery before starting therapy. Minor procedures requiring Twilight sedation such as endoscopies or mediport placement may only require a 24-hour waiting period, but this must be discussed with an investigator. * Women of childbearing potential must have a negative serum pregnancy test within 14 days prior to initiation of treatment and/or postmenopausal women must be amenorrheic for at least 12 months to be considered of non-childbearing potential * Patient is capable of understanding and complying with parameters as outlined in the protocol and able to sign and date the informed consent, approved by the Institutional Review Board (IRB), prior to the initiation of any screening or study-specific procedures

Exclusion criteria

* Ampullary adenocarcinoma * Women who are pregnant or breastfeeding * Macroscopic positive margins (R2) or evidence of residual local or metastatic disease * Resection not including pancreaticoduodenectomy * Known allergy or intolerance to leucovorin, 5-fluorouracil, oxaliplatin, or irinotecan * Prior radiation to the upper abdomen * Inability to swallow pills or bowel obstruction * Any invasive cancer in the previous 3 years requiring chemotherapy, radiation, or anticancer therapy following surgery * Insurance unwilling to pre-authorize PRT, FFX, and (if necessary) pegfilgrastim * Clinically significant liver disease (Patients with resolved hepatitis B infection are eligible if HBsAg testing is negative; Patients with resolved hepatitis C infection are eligible if viral RNA PCR is negative) * Uncontrolled HIV infection (CD4 count must be at least 200 and viral load undectable on a stable antiretroviral regimen to be eligible for enrollment) * Major surgery within 4 weeks prior to enrollment

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Dose Limiting Toxicites (DLTs)6 monthsRecommended phase II dose and schedule (RP2D) of short-course PRT integrated within adjuvant mFOLFIRINOX will be based on number of Dose limiting toxicities.
Safety (Adverse Events) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOX6 monthsDose Limiting Toxicities. Adverse Event data will be collected and presented as descriptive statistics using the CTCAE version 5.0
Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOX6 monthsSuccess rate defined as # of patients that completed proton beam planning, proton beam treatment, and completion of adjuvant therapy

Secondary

MeasureTime frameDescription
Recurrence-free Survival (RFS)12 monthsDefined as time from surgery until evidence of disease recurrence.
Overall Survival (OS)2 yearsDefined as time from surgery until death from any cause or last follow-up.

Countries

United States

Participant flow

Participants by arm

ArmCount
Dose Level 1
mFOLFIRINOX + Proton beam radiation Radiation given on days 8-12 of cycle 6 mFOLFIRINOX: Chemotherapy will consist of mFOLFIRINOX in 14-day cycles x 12 as used in the PRODIGE 24 study: * Irinotecan 150 mg/m2 IV day 1 * Oxaliplatin 85 mg/m2 IV day 1 * Leucovorin 400 mg/m2 IV day 1 * 5-fluorouracil 2,400 mg/m2 IV days 1-3 (no bolus) * Pegfilgrastim 6 mg SC on-body injector day 3 (optional, up to investigator's discretion, can alternatively do day 4 without on-body injector) * Suggested supportive care medications: fosaprepitant 150 mg IV day 1, dexamethasone 12 mg IV day 1, ondansetron 16 mg IV day 1, dexamethasone 4 mg PO q AM days 2-3, ondansetron 8 mg PO BID days 2-3. Proton beam radiation: Proton beam radiation will consist of 5 daily doses of 5 GyE total, ideally administered Monday through Friday but can be administered within 7 business days, between cycles 6 and 7
3
Dose Level 2
mFOLFIRINOX + Proton beam radiation Radiation given on days 15-19 of cycle 6 mFOLFIRINOX: Chemotherapy will consist of mFOLFIRINOX in 14-day cycles x 12 as used in the PRODIGE 24 study: * Irinotecan 150 mg/m2 IV day 1 * Oxaliplatin 85 mg/m2 IV day 1 * Leucovorin 400 mg/m2 IV day 1 * 5-fluorouracil 2,400 mg/m2 IV days 1-3 (no bolus) * Pegfilgrastim 6 mg SC on-body injector day 3 (optional, up to investigator's discretion, can alternatively do day 4 without on-body injector) * Suggested supportive care medications: fosaprepitant 150 mg IV day 1, dexamethasone 12 mg IV day 1, ondansetron 16 mg IV day 1, dexamethasone 4 mg PO q AM days 2-3, ondansetron 8 mg PO BID days 2-3. Proton beam radiation: Proton beam radiation will consist of 5 daily doses of 5 GyE total, ideally administered Monday through Friday but can be administered within 7 business days, between cycles 6 and 7
6
Total9

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDisease Progression13
Overall StudyPhysician Decision01

Baseline characteristics

CharacteristicDose Level 1Dose Level 2Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
2 Participants4 Participants6 Participants
Age, Categorical
Between 18 and 65 years
1 Participants2 Participants3 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants6 Participants9 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
0 Participants1 Participants1 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
3 Participants5 Participants8 Participants
Sex: Female, Male
Female
1 Participants2 Participants3 Participants
Sex: Female, Male
Male
2 Participants4 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
2 / 32 / 6
other
Total, other adverse events
3 / 36 / 6
serious
Total, serious adverse events
0 / 31 / 6

Outcome results

Primary

Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOX

Success rate defined as # of patients that completed proton beam planning, proton beam treatment, and completion of adjuvant therapy

Time frame: 6 months

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dose Level 1Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOXCompletion PRT3 Participants
Dose Level 1Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOXcompletion of proton beam planning3 Participants
Dose Level 1Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOXcompletion of proton beam treatment3 Participants
Dose Level 1Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOXcompletion of adjuvant therapy2 Participants
Dose Level 2Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOXcompletion of adjuvant therapy2 Participants
Dose Level 2Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOXCompletion PRT6 Participants
Dose Level 2Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOXcompletion of proton beam treatment6 Participants
Dose Level 2Feasibility (Rate of Successful Completion) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOXcompletion of proton beam planning6 Participants
Primary

Incidence of Dose Limiting Toxicites (DLTs)

Recommended phase II dose and schedule (RP2D) of short-course PRT integrated within adjuvant mFOLFIRINOX will be based on number of Dose limiting toxicities.

Time frame: 6 months

ArmMeasureValue (NUMBER)
Dose Level 1Incidence of Dose Limiting Toxicites (DLTs)0 Dose limiting Toxicities
Dose Level 2Incidence of Dose Limiting Toxicites (DLTs)1 Dose limiting Toxicities
Primary

Safety (Adverse Events) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOX

Dose Limiting Toxicities. Adverse Event data will be collected and presented as descriptive statistics using the CTCAE version 5.0

Time frame: 6 months

Population: number of participants that had a dose limiting toxicity.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose Level 1Safety (Adverse Events) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOX0 Participants
Dose Level 2Safety (Adverse Events) of Short-course PRT Integrated Within Adjuvant mFOLFIRINOX1 Participants
Secondary

Overall Survival (OS)

Defined as time from surgery until death from any cause or last follow-up.

Time frame: 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Dose Level 1Overall Survival (OS)2 Participants
Dose Level 2Overall Survival (OS)4 Participants
Secondary

Recurrence-free Survival (RFS)

Defined as time from surgery until evidence of disease recurrence.

Time frame: 12 months

ArmMeasureValue (MEDIAN)
Dose Level 1Recurrence-free Survival (RFS)12 months
Dose Level 2Recurrence-free Survival (RFS)12 months

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026