The goal of this clinical trial is to learn if the regimen of dexamethasone, azacitidine, pegaspargase and tislelizumab (DAPT regimen) combined with radiotherapy works to treat stage I or II NK/T cell lymphoma in adults. It will also learn about the safety of the DAPT regimen. The main questions it aims to answer are:
What are the efficacy of the DAPT regimen plus radiotherapy in participants with extranodal NK/T-cell lymphoma? What medical problems do participants have when taking the DAPT regimen?
Participants will:
Receive the DAPT regimen every 21 days for 6 cycles and radiotherapy Visit the clinic according to clinical trial requirement for checkups and tests Receive blood tests and radiological imaging tests according to the clinical trial requirement
Pathologically confirmed diagnosis of extranodal NK/T-cell lymphoma
Age ≥18 years
Ann Arbor stage I or II
Presence of at least 1 measurable lesion according to the 2014 Lugano revised criteria for response assessment
Unconfirmed pathological diagnosis of NK/T-cell lymphoma
Pregnant or lactating women, or patients of childbearing age unwilling to take contraceptive measures during the study period.
Patients with clinically significant prolonged QTc interval (>470ms in males, >480ms in females), ventricular tachycardia, atrial fibrillation, second or third degree atrioventricular block, acute myocardial infarction, congestive heart failure, severe or symptomatic coronary artery disease requiring medical treatment.
Patients with large amount of pericardial effusions shown by echocardiogram.
Single group
DAPT regimen plus radiotherapy
DrugPatients receive 6 cycles of DAPT regimen plus concurrent radiotherapy. The DAPT regimen is administered as follows: dexamethasone 10mg intravenously on days1-3, azacitidine 100mg subcutaneously on days 1-5, pegaspargase 2500IU/m2 intramuscularly on day 1, and tislelizumab 200mg intravenously on day 6, repeated every 21 days. Concurrent radiotherapy given to the tumor sites is started after 2 cycles of DAPT regimen. The specific doses and methods of radiotherapy are in accordance with the clinical guidelines for NK/T-cell lymphoma.
Complete response rate
Complete response rate is assessed according to the 2014 Lugano criteria for response assessment of lymphoma.
Objective response rate
Objective response rate is assessed according to the 2014 Lugano criteria for response assessment of lymphoma, including complete response and partial response.
2-year progression-free survival rate
Progression-free survival (PFS) is measured from the time of start of treatment to the time of first progression, relapse after response, death from any cause, or the date of last follow-up. 2-year PFS rate will be estimated using the Kaplan-Meier method.
2-year overall survival rate
Overall survival (OS) is defined as the time from the start of treatment to the time of death from any cause or the date of last follow-up. The 2-year OS rate will be estimated using the Kaplan-Meier method.
Adverse events
All adverse events will be recorded and graded according to CTCAE 5.0
Exploratory biomarker analyses
Patients' tumor tissue and blood samples will be collected and analyzed to explore predictive biomarkers for treatment response and prognosis.
Click on the lead sponsor to view all of their trials.
Peking University Cancer Hospital & Institute
Lead sponsor
Peking University International Hospital
Collaborator
Chinese Academy of Medical Sciences
Collaborator
