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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03257163
Other study ID # Pro20170000375
Secondary ID NCI-2017-0142907
Status Recruiting
Phase Phase 2
First received
Last updated
Start date September 29, 2017
Est. completion date December 31, 2025

Study information

Verified date July 2023
Source Rutgers, The State University of New Jersey
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This phase II trial studies how well pembrolizumab works with capecitabine and radiation therapy in treating patients with mismatch repair deficient and Epstein-Barr virus positive gastric cancer. Monoclonal antibodies, such as pembrolizumab may interfere with the ability of tumor cells to grow and spread. Drugs used in chemotherapy, such as capecitabine, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving pembrolizumab, capecitabine and radiation therapy may work better at treating gastric cancer.


Description:

PRIMARY OBJECTIVES: I. To assess efficacy (disease-free survival) of operable gastric cancer treated with PD-1 blockade using pembrolizumab. SECONDARY OBJECTIVES: I. To characterize the safety and tolerability of pembrolizumab in the preoperative setting and postoperative setting with chemoradiation. II. To evaluate response rates, recurrence rates, and patterns of recurrence/metastasis. III. To characterize adverse events (AE) of pembrolizumab in combination with radiation therapy and capecitabine. IV. To evaluate overall survival rates. TERTIARY OBJECTIVES: I. To assess T cell responses and pathological responses in the tumor specimen. II. To correlate PD-L1 expression in tumor tissue and stroma with tumor tissue response. III. To evaluate ribonucleic acid (RNA) expression via Nanostring technology with tumor tissue response. OUTLINE: Patients receive pembrolizumab intravenously (IV) over 30 minutes on day 1. Treatment repeats every 21 days for up to 2 courses in the absence of disease progression or unacceptable toxicity. Within 2-6 weeks, patients undergo surgery. Beginning up to 56 days after surgery, patients receive pembrolizumab IV over 30 minutes on day 1 and capecitabine orally (PO) twice daily (BID) on days 1-14. Treatment repeats every 21 days for up to 5 courses in the absence of disease progression or unacceptable toxicity. Within 2-6 weeks of resting, patients continue to receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 21 days for up to 11 courses in the absence of disease progression or unacceptable toxicity. Beginning course 4, patients undergo radiation therapy over 15-30 minutes on days 1-5 for up to 5 weeks. After completion of study treatment, patients are followed up every 12 weeks for 1 year, every 16 weeks for 2 years, every 4 months for year 2, and every 6 months for 2 years.


Recruitment information / eligibility

Status Recruiting
Enrollment 40
Est. completion date December 31, 2025
Est. primary completion date December 31, 2023
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Written informed consent for the trial - Must have operable gastric adenocarcinoma, T2-T4a, N0-N3, M0 - Staging evaluation within 42 days of enrollment consisting of staging laparoscopy, computed tomography (CT) scan of the abdomen and pelvis, and positron emission tomography (PET) scan will be acquired; also endoscopic ultrasound (EUS) tumor and nodal staging will be required - Mismatch repair deficiency as identified by immunohistochemistry or other institutional standard, or Epstein-Barr virus positivity as determined by in situ hybridization or other institutional standard - Be willing to provide tissue from a newly obtained core or excisional biopsy of a tumor lesion; newly-obtained is defined as a specimen obtained up to 10 weeks (70 days) prior to initiation of treatment on day 1; subjects for whom newly-obtained samples cannot be provided (e.g. inaccessible or subject safety concern) may submit an archived specimen (if available from prior biopsy) only upon agreement from the sponsor - Have a performance status of 0 or 1 on the Eastern Cooperative Oncology Group (ECOG) performance scale - Absolute neutrophil count (ANC) >= 1,500 /mcL - Platelets >= 100,000 / mcL - Hemoglobin >= 7 g/dL or >= 5.6 mmol/L with transfusion or erythropoietin (EPO) dependency - Serum creatinine =< 1.5 X upper limit of normal (ULN) OR measured or calculated creatinine clearance (glomerular filtration rate [GFR] can also be used in place of creatinine or creatinine clearance [CrCl]) >= 60 mL/min for subject with creatinine levels > 1.5 X institutional ULN - Serum total bilirubin =< 1.5 X ULN OR direct bilirubin =< ULN for subjects with total bilirubin levels > 1.5 ULN - Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT]) and alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 X ULN - Albumin >= 2.5 mg/dL - International normalized ratio (INR) or prothrombin time (PT) =< 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or partial thromboplastin time (PTT) is within therapeutic range of intended use of anticoagulants - Activated partial thromboplastin time (aPTT) =< 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants - Female subject of childbearing potential should have a negative urine or serum pregnancy within 7 days of enrollment; if the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required - Female subjects of childbearing potential must be willing to use an adequate method of contraception for the course of the study through 120 days after the last dose of study medication; Note: abstinence is acceptable if this is the usual lifestyle and preferred contraception for the subject - Male subjects of childbearing potential must agree to use an adequate method of contraception starting with the first dose of study therapy through 120 days after the last dose of study therapy; Note: abstinence is acceptable if this is the usual lifestyle and preferred contraception for the subject Exclusion Criteria: - Presence of metastatic disease is not allowed; subjects must be evaluated with imaging consisting of CT scan and PET scan prior to enrollment for protocol therapy to exclude metastatic disease - Prior chemotherapy, adjuvant therapy, or radiotherapy for gastric cancer - Prior radiotherapy that overlaps with planned radiotherapy portal - Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment - Has a known history of active TB (Bacillus tuberculosis) - Hypersensitivity to pembrolizumab or any of its excipients - Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to study day 1 or who has not recovered (i.e., =< grade 1 or at baseline) from adverse events due to agents administered more than 4 weeks earlier - Has had prior chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks prior to study day 1 or who has not recovered (i.e., =< grade 1 or at baseline) from adverse events due to a previously administered agent - Note: subjects with =< grade 2 neuropathy are an exception to this criterion and may qualify for the study - Note: if subject received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting therapy - Has a known additional malignancy that is progressing or requires active treatment; exceptions include basal cell carcinoma of the skin or squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer - Has active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs); replacement therapy (eg., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment - Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis - Evidence of interstitial lung disease - Has an active infection requiring systemic therapy - Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject?s participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator - Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial - Is pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the pre-screening or screening visit through 120 days after the last dose of trial treatment - Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent - Has a known history of human immunodeficiency virus (HIV) (HIV 1/2 antibodies) - Has known active hepatitis B (e.g., hepatitis B surface antigen [HBsAg] reactive) or hepatitis C (e.g., hepatitis C virus (HCV) RNA [qualitative] is detected) - Has received a live vaccine within 30 days of planned start of study therapy; Note: seasonal influenza vaccines for injection are generally inactivated flu vaccines and are allowed; however intranasal influenza vaccines (e.g., Flu-Mist) are live attenuated vaccines, and are not allowed

Study Design


Intervention

Drug:
Capecitabine
Given PO
Other:
Laboratory Biomarker Analysis
Correlative studies
Biological:
Pembrolizumab
Given IV
Radiation:
Radiation Therapy
Undergo radiation therapy

Locations

Country Name City State
United States Emory University Atlanta Georgia
United States Montefiore Medical Center Bronx New York
United States Rutgers Cancer Institute of New Jersey New Brunswick New Jersey

Sponsors (2)

Lead Sponsor Collaborator
Rutgers, The State University of New Jersey National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Recurrence-free survival (RFS) rate At the time of analysis (after 18 months of accrual and 18 additional months of follow-up), will compute a Kaplan-Meier survival curve and will compare the observed survival rate at three years to the historical level of 0.45. 3 years
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