Pilot Study With CY, Pembrolizumab, GVAX, and IMC-CS4 (LY3022855) in Patients With Borderline Resectable Adenocarcinoma of the Pancreas

A Pilot Study of a GVAX Pancreas Vaccine (With Cyclophosphamide) in Combination With a PD-1 Blockade Antibody (Pembrolizumab) and a Macrophage Targeting Agent (CSF1R Inhibitor) for the Treatment of Patients With Borderline Resectable Adenocarcinoma of the Pancreas

The purpose of this study is to evaluate whether combining cyclophosphamide (CY), pembrolizumab, GVAX and IMC-CS4 is effective and safe in patients with borderline resectable pancreatic cancer.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This was a single center, open label, pilot study to evaluate the safety and intratumoral immune response of neoadjuvant/adjuvant triplet immunotherapy: CY/GVAX, Pembrolizumab, and IMC-CS4 in patients with resectable or borderline resectable Pancreatic ductal adenocarcinoma.

Patients received the combination of CY/GVAX with pembrolizumab and IMC-CS4 following completion of standard neoadjuvant chemotherapy (with or without radiation). Immunotherapy agents were given prior to and after surgical resection.

Patients receive neoadjuvant immunotherapy consisting of cyclophosphamide and pembrolizumab on day 1, IMC-CS4 on days 1, 8, and 15, and GVAX on day 2 of Cycles 1 and 2 (3 weeks/cycle). Patients will then undergo pancreaticoduodenectomy 2-3 weeks later, followed by standard of care adjuvant chemotherapy at the discretion of the primary oncologist. Patients may then receive 4 cycles (3 weeks/cycle) of adjuvant immunotherapy (same regimen as Cycles 1 and 2). Disease free patients may receive an additional 12 booster cycles (3 weeks/cycle) of immunotherapy consisting of pembrolizumab on day 1 of all 12 booster cycles, as well as cyclophosphamide on day 1 and GVAX on day 2 of the 6th and 12th booster cycle.

Study Type

Interventional

Enrollment (Actual)

11

Phase

  • Early Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Maryland
      • Baltimore, Maryland, United States, 21231
        • Sidney Kimmel Comprehensive Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Have histologically or cytologically proven adenocarcinoma of the pancreas.
  • Patient's acceptance to have a core biopsy.
  • Presence of at least one measurable lesion.
  • Must not have metastatic disease.
  • Patients must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded) as >20 mm with conventional techniques or as >10 mm with spiral CT scan. See Section 10.1.2 for the evaluation of measurable disease.
  • Must have received last dose of stereotactic body radiotherapy no longer than 28 days prior to enrollment.
  • Must have received last dose of chemotherapy at least 14 days or longer prior to entry into the study.
  • Age >18 years.
  • ECOG performance status 0-1.
  • Patient's blood, kidney and liver function must within normal limits
  • Must use an acceptable form of birth control while on study.
  • Ability to understand and the willingness to sign a written informed consent document.

Exclusion Criteria:

  • Currently is participating or has participated in a study using any investigational therapy within the past 28 days or is currently using an investigational device.
  • Major surgery 28 days prior to study entry excluding minor procedures (dental work, skin biopsy, etc.), celiac plexus block, and biliary stent placement.
  • Used any systemic steroids, immunosuppressant medications and anti-neoplastic treatment in the past 14 days.
  • Prior treatment with immunotherapy agents (including, but not limited to: IL-2, interferon, anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137, anti-OX-40, anti-CD40, or anti-CTLA-4 antibodies).
  • Used any growth factors including, but not limited to, granulocyte-colony stimulating factor (G-CSF), GM-CSF, erythropoietin, within 14 days of study drug administration. Use of such agents while on study is also prohibited.
  • Received any prophylactic vaccine within 14 days of first dose of study drug or received a live vaccine within 30 days of study treatment.
  • Currently have or have history of certain study-specified heart, liver, kidney, lung, neurological, psychological, immune or other medical conditions.
  • History of any autoimmune disease: inflammatory bowel disease, (including ulcerative colitis and Crohn's Disease), rheumatoid arthritis, systemic progressive sclerosis (scleroderma), systemic lupus erythematosus (SLE) autoimmune vasculitis (e.g., Wegener's Granulomatosis), CNS or motor neuropathy considered to be of autoimmune origin (e.g., Guillian-Barre Syndrome, Myasthenia Gravis, Multiple Sclerosis). Patients with thyroid disease will be allowed.
  • Has history of (non-infectious) pneumonitis that required steroids, history or evidence of interstitial lung disease or active, non-infectious pneumonitis.
  • Has a pulse oximetry < 92% on room air.
  • Evidence of ascites on imaging.
  • Requires the use of home oxygen.
  • Have known history of infection with HIV, hepatitis B, or hepatitis C.
  • Have been diagnosed with another cancer in the past 5 years (except for superficial bladder cancer, non-melanoma skin cancers, or a low grade prostate cancer not requiring therapy)
  • History of severe hypersensitivity reaction to any monoclonal antibody.
  • Known or suspected hypersensitivity to GM-CSF, hetastarch, corn, dimethyl sulfoxide, fetal bovine serum, trypsin (porcine origin), yeast or any other component of GVAX pancreas vaccine.
  • Pregnant or breastfeeding women.
  • Positive pregnancy test during the study.
  • Women sexually active with a fertile man and of childbearing potential unwilling or unable to use an acceptable method to avoid pregnancy for the entire study and for up to 120 days after the last dose of study drug.
  • Unwilling or unable to follow the study schedule for any reason.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cyclophosphamide, GVAX, Pembrolizumab and IMC-CS4

200 mg/m^2, intravenous (IV) infusion

Patients receive neoadjuvant immunotherapy consisting of cyclophosphamide and pembrolizumab on day 1, IMC-CS4 on days 1, 8, and 15, and GVAX on day 2 of Cycles 1 and 2 (3 weeks/cycle). Patients will then undergo pancreaticoduodenectomy 2-3 weeks later, followed by standard of care adjuvant chemotherapy at the discretion of the primary oncologist. Patients may then receive 4 cycles (3 weeks/cycle) of adjuvant immunotherapy (same regimen as Cycles 1 and 2). Disease free patients may receive an additional 12 booster cycles (3 weeks/cycle) of immunotherapy consisting of pembrolizumab on day 1 of all 12 booster cycles, as well as cyclophosphamide on day 1 and GVAX on day 2 of the 6th and 12th booster cycle.

Other Names:
  • Cytoxan
  • CY

5x10^8 cells, six intradermal (ID) injections

Patients receive neoadjuvant immunotherapy consisting of cyclophosphamide and pembrolizumab on day 1, IMC-CS4 on days 1, 8, and 15, and GVAX on day 2 of Cycles 1 and 2 (3 weeks/cycle). Patients will then undergo pancreaticoduodenectomy 2-3 weeks later, followed by standard of care adjuvant chemotherapy at the discretion of the primary oncologist. Patients may then receive 4 cycles (3 weeks/cycle) of adjuvant immunotherapy (same regimen as Cycles 1 and 2). Disease free patients may receive an additional 12 booster cycles (3 weeks/cycle) of immunotherapy consisting of pembrolizumab on day 1 of all 12 booster cycles, as well as cyclophosphamide on day 1 and GVAX on day 2 of the 6th and 12th booster cycle.

Other Names:
  • PANC 10.05 pcDNA-1/GM-Neo and PANC 6.03 pcDNA-1/GM-Neo vaccine

200 mg, intravenous (IV) infusion

Patients receive neoadjuvant immunotherapy consisting of cyclophosphamide and pembrolizumab on day 1, IMC-CS4 on days 1, 8, and 15, and GVAX on day 2 of Cycles 1 and 2 (3 weeks/cycle). Patients will then undergo pancreaticoduodenectomy 2-3 weeks later, followed by standard of care adjuvant chemotherapy at the discretion of the primary oncologist. Patients may then receive 4 cycles (3 weeks/cycle) of adjuvant immunotherapy (same regimen as Cycles 1 and 2). Disease free patients may receive an additional 12 booster cycles (3 weeks/cycle) of immunotherapy consisting of pembrolizumab on day 1 of all 12 booster cycles, as well as cyclophosphamide on day 1 and GVAX on day 2 of the 6th and 12th booster cycle.

Other Names:
  • KEYTRUDA®
  • MK-3475,

75 mg (dose level 1) or 100 mg (dose level 2), intravenous (IV) infusion

Patients receive neoadjuvant immunotherapy consisting of cyclophosphamide and pembrolizumab on day 1, IMC-CS4 on days 1, 8, and 15, and GVAX on day 2 of Cycles 1 and 2 (3 weeks/cycle). Patients will then undergo pancreaticoduodenectomy 2-3 weeks later, followed by standard of care adjuvant chemotherapy at the discretion of the primary oncologist. Patients may then receive 4 cycles (3 weeks/cycle) of adjuvant immunotherapy (same regimen as Cycles 1 and 2). Disease free patients may receive an additional 12 booster cycles (3 weeks/cycle) of immunotherapy consisting of pembrolizumab on day 1 of all 12 booster cycles, as well as cyclophosphamide on day 1 and GVAX on day 2 of the 6th and 12th booster cycle.

Other Names:
  • LY3022855

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Patients With a Treatment-related Immunologic Effect
Time Frame: 8 weeks
Treatment-related immunologic effect is defined as an 80% or greater increase in the number of CD8+ T cells (and at least 1.8 times the baseline median absolute deviation) in surgically resected tumor tissue in comparison to the baseline biopsy in subjects that received at least 1 dose of neoadjuvant combination immunotherapy and underwent a R0, R1, or R2 surgical resection.
8 weeks
Safety of the Combination of GVAX Pancreas Vaccine (With CY), Pembrolizumab, and a Macrophage Targeting Agent (CSF1R Inhibitor IMC-CS4) in Patients With Resectable or Borderline Resectable Pancreatic Cancer (BRPC) Prior to and Following Surgery
Time Frame: 25 months
Number of subjects that experienced a grade 3 or higher study drug related adverse event
25 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall Survival (OS)
Time Frame: 44 months
OS will be measured from date of first dose until death or end of follow-up (OS will be censored on the date the subject was last known to be alive for subjects without documentation of death at the time of analysis). Estimation based on the Kaplan-Meier curve.
44 months
Disease Free Survival (DFS)
Time Frame: 37 months
DFS is defined as time from fist dose of study drug to the date of progression or death. Subjects were censored at the date of last scan if alive at the time of analyses or if the subject's date of death was greater than 3 months after last scan. Estimation based on the Kaplan-Meier curve.
37 months
Immune-related Objective Response Rate (irORR)
Time Frame: Up to 10 weeks from baseline irRC read
Immune-related Objective Response Rate (irORR) is defined as the number of patients achieving a complete response (irCR) or partial response (irPR) based on immune related response criteria (irRC) following the study immunotherapy prior to surgical resection. Per irRC criteria, Complete Response (irCR) is the disappearance of all target lesions, Partial Response (irPR) is a decrease in tumor burden by 50% or greater.
Up to 10 weeks from baseline irRC read
Surgical Resectability Rate
Time Frame: 8 weeks
Surgical resectability after neoadjuvant therapy as determined by the number of patients able to undergo surgical resection.
8 weeks
Pathologic Response Rate
Time Frame: 8 weeks
Pathologic response as determined by surgical margins status at the time of surgery and response to neoadjuvant treatment per surgical specimen assessment (participants with <10% residual viable tumor is reported).
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Investigators

  • Principal Investigator: Ana DeJesus, MD, Johns Hopkins University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 27, 2018

Primary Completion (Actual)

March 9, 2022

Study Completion (Actual)

August 29, 2023

Study Registration Dates

First Submitted

May 11, 2017

First Submitted That Met QC Criteria

May 11, 2017

First Posted (Actual)

May 15, 2017

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

December 23, 2024

Last Verified

December 1, 2024

More Information

Terms related to this study

Other Study ID Numbers

  • J1766
  • IRB00130267 (Other Identifier: JHMIRB)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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