- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03544099
Pembrolizumab for Nasopharyngeal Carcinoma Patients With Detectable Plasma Epstein-Barr Virus DNA
Pembrolizumab for Nasopharyngeal Carcinoma Patients With Detectable Plasma Epstein-Barr Virus DNA But Without Clinically Detectable Residual Diseases and/or Metastases After Curative Chemoradiation - A Single Arm Phase II Trial
Study Overview
Detailed Description
This phase II study is aimed to prove the efficacy of adjuvant therapy with pembrolizumab for nasopharyngeal carcinoma patients with detectable plasma EBV DNA after curative chemoradiation.
Nasopharyngeal cancer was a malignancy related to Epstein-Barr virus infection. It was a malignancy endemic in Southeast Asia, Taiwan, and China. The primary treatment was chemoradiation. The three-year disease free survival was around 50-60% for locally-advanced (stage IVA, IVB) NPC. Adjuvant chemotherapy after curative chemoradiation is a strategy to improve disease control rate for advanced NPC. However, two phase III trials in Taiwan (TCOG 1394) and China failed to prove its efficacy on improving disease control and overall survival. How to identify patients who are truly at risk is an important question for the therapy of advanced NPC.
Plasma EBV DNA copy number is a biomarker predicting the recurrent risk of nasopharyngeal cancer. A higher level of plasma EBV DNA before chemoradiation is related to a poorer prognosis. A detectable EBV DNA after chemoradiation, which is a hint for occult residual or metastatic disease, is a strong predictor for early recurrence. The relapse free survival at two years for patients with detectable plasma EBV DNA (> 0 copies/mL) was around 20%. The results of other similar trials are summarized on table 1.
Cancer cells escaped from the immune surveillance by several mechanisms. One of them is activating immune inhibitory pathway by "immune checkpoints" . Programmed Death 1 (PD-1) and Programmed Death Ligand 1 (PD-L1) is one immune checkpoint axis to regulate immune response against cancer. Pembrolizumab (MK-3475), an anti-PD-1 antibody, had a good activity against melanoma and other types of cancers. The toxicity profiles were tolerable. In the Keynote-028 phase Ib trial, pembrolizumab showed good clinical activity against recurrent or metastatic NPC. The overall response rate is 22%, and the disease control rate is 77.8%. This data is encouraging for further clinical trials of pembrolizumab for NPC.
PD-1/PD-L1 axis has an important role for the resistance of chemoradiation[18]. In patients refractory to chemoradiation, the expression of PD-1 and PD-L1 increased in the tumor. In animal model, sequential administration of anti-PD-1 after radiation significantly improved the progression free survival in mice with tumors [19]. This concept supports the investigator's sequential design for high-risk NPC patients.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
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Changhua, Taiwan
- Changhua Christian Hospital
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Linkou, Taiwan
- Chang Gung Memorial Hospital
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Taichung, Taiwan
- China Medical University Hospital
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Taichung, Taiwan
- Taichung Veterans General Hospital
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Tainan, Taiwan
- National Cheng Kung University Hospital
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Taipei, Taiwan
- National Taiwan University Hospital
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Taipei, Taiwan
- Taipei Veterans General Hospital
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Taipei, Taiwan
- Koo Foundation Sun Yat-Sen Cancer Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Be willing and able to provide written informed consent/assent for the trial.
- Be more than 20 years of age on day of signing informed consent.
- Have a performance status of 0 or 1 on the ECOG Performance Scale
Demonstrate adequate organ function as defined in Table 2
- Hematological
- Absolute neutrophil count (ANC) ≥1,500 /mcL
- Platelets ≥100,000 / mcL
- Hemoglobin ≥9 g/dL or ≥5.6 mmol/L without transfusion or EPO dependency (within 7 days of assessment)
- Renal Serum creatinine OR Measured or calculateda creatinine clearance (GFR can also be used in place of creatinine or CrCl) ≤1.5 X upper limit of normal (ULN) OR≥60 mL/min for subject with creatinine levels > 1.5 X institutional ULN
- Hepatic
- Serum total bilirubin ≤ 1.5 X ULN OR Direct bilirubin ≤ ULN for subjects with total bilirubin levels > 1.5 ULN
- AST (SGOT) and ALT (SGPT)≤ 2.5 X ULN
- Albumin >2.5 mg/dL
- Coagulation
- International Normalized Ratio (INR) or Prothrombin Time (PT)
- 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 ≤1.5 X ULN unless subject is receiving anticoagulant therapyas long as PT or PTT is within therapeutic range of intended use of anticoagulants aCreatinine clearance should be calculated per institutional standard.
- Histology proven nasopharyngeal carcinoma. Biopsy at nasopharynx is mandatory.
- Completing radiotherapy more than 66Gy (curative intent radiotherapy)
Detectable plasma EBV DNA: it is defined by the following criteria:
- The first test of plasma EBV DNA: 6-8 weeks after the last dose of radiotherapy.
If the first test of plasma EBV DNA is detectable:
- Within the "linear dynamic range": eligible by one single EBV DNA testing
- Lower than the "linear dynamic range": it should be repeated within 2-4 weeks after the report day of first test of plasma EBV DNA. If both results are detectable, the patient is eligible
- *The "linear dynamic range" is defined as the highest to the lowest quantifiable copy number established by means of a calibration curve (MIQE guidelines, 7.4.2 section, Clin Chem. 2009;55(4):611-22)
No detectable residual disease or distant metastases after imaging studies: The following examinations should be completed within 28 days after the report day of detectable plasma EBV DNA. If a repeated test of plasma EBV DNA is necessary by criteria 7, the following examination should be completed within 28 days after the report day of the repeated plasma EBV DNA test.
- For locally residual disease, head and neck MRI should be completed. For patients who cannot take MRI, CT scan with and without contrast should be completed.
For distant metastases, one of the following studies should be completed.
- Whole body PET-CT scan (if the modality is available)
- CT scan with and without contrast of chest and abdomen, and bone scan
- Female subject of childbearing potential should have a negative urine or serum pregnancy test. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.
- Female subjects of childbearing potential (Section 5.5.2) must be willing to use an adequate method of contraception as outlined in Section 5.5.2 - 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 (Section 5.5.2) must agree to use an adequate method of contraception as outlined in Section 5.5.2- 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:
The subject must be excluded from participating in the trial if the subject:
- Other malignancies diagnosed before or concurrently with the diagnosis of NPC.
- Take chemotherapy or other anti-cancer agents after curative chemoradiation.
- Documented residual / recurrent local disease or distant metastases after completing chemoradiation.
- Plasma EBV DNA is un-detectable.
- Unresolved grade 2 or more acute toxicities related to chemoradiation
- Is currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment.
- Hypersensitivity to pembrolizumab or any of its excipients.
- 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. Topical or inhaled steroids is not considered as systemic treatment.
- Has known history of pneumonitis requiring steroids, or any evidence of active, non-infectious pneumonitis
- Has an active infection requiring systemic therapy 14 days before signing informed consent.
- 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., HBsAg reactive) or Hepatitis C (e.g., 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 Plan
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 |
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Experimental: Pembrolizumab for NPC patients
Pembrolizumab 200 mg Q3W IV infusion, Day 1 of each 3 week cycle, for 35 cycles
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Pembrolizumab 200mg Intravenous Solution
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
prolong one-year disease free survival (DFS-1y)
Time Frame: 5 years
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To examine the efficacy of pembrolizumab to prolong one-year disease free survival (DFS-1y) in nasopharyngeal carcinoma (NPC) patients with detectable plasma Epstein-Barr virus (EBV) DNA after curative chemoradiation.
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5 years
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Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Ruey-Long Hong, PhD, National Taiwan University Hospital
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Virus Diseases
- Infections
- Neoplasms by Histologic Type
- Neoplasms
- Neoplasms by Site
- Neoplasms, Glandular and Epithelial
- Pharyngeal Neoplasms
- Otorhinolaryngologic Neoplasms
- Head and Neck Neoplasms
- Nasopharyngeal Diseases
- Pharyngeal Diseases
- Stomatognathic Diseases
- Otorhinolaryngologic Diseases
- DNA Virus Infections
- Tumor Virus Infections
- Herpesviridae Infections
- Nasopharyngeal Neoplasms
- Carcinoma
- Nasopharyngeal Carcinoma
- Epstein-Barr Virus Infections
- Antineoplastic Agents
- Antineoplastic Agents, Immunological
- Pembrolizumab
Other Study ID Numbers
- T1317
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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