Zanubrutinib Combined With Standard Chemotherapy in the Treatment for Patients With Diffuse Large B Cell Lymphoma

A Single Arm, Multi-center, Phase II Clinical Trial of Zanubrutinib Combined With Standard Chemotherapy in the Treatment for Patients With Diffuse Large B Cell Lymphoma and CD79A/CD79B Genetic Abnormality

This is a prospective single arm, multi-center, phase II clinical trial to observe the efficacy and safety of zanubrutinib combined with standard chemotherapy in the treatment for patients with diffuse large B cell lymphoma and CD79A/CD79B genetic abnormality.

Diffuse large B cell lymphoma (DLBCL) is the most common type of non-Hodgkin's lymphoma (NHL). Currently, R-CHOP is world-widely used in the first-line treatment for DLBCL. There are about one second of patients suffering relapse and drug resistance. ABC-DLBCL mainly relies on the chronical activity of BCR signal, which can activate the downstream NF-kB pathway through BTK and MYD88, thereby promoting the occurrence of tumors. A study by Wyndham H Wilson et al. showed that 23% of ABC-DLBCL patients were accompanied by acquired functional mutations of the BCR component CD79A/CD79B. Zanubrutinib is a new BTK inhibitor. The goal of our trial is to assess the efficacy and safety of zanubrutinib combined with standard chemotherapy in the treatment for patients with diffuse large B cell lymphoma and CD79A/CD79B genetic abnormality.

Inclusion Criteria:

1. Age between 18 to 75 years old (including 18 and 75)
2. Diagnosed as diffuse large B cell lymphoma
3. CD79A/CD79B genetic abnormality
4. Subjects with untreated or relapsed/refractory DLBCL
5. Having at least one measurable lesions
6. World health organization-Eastern Cooperative Oncology Group Performance Status (ECOG) 0-1
7. Life expectancy no less than 3 months
8. enough main organ function
9. Pregnancy test within 7 days must be negative for women of childbearing period, and appropriate measures should be taken for contraception for women in childbearing period during the study and six months after this study
10. Agreeing to sign the written informed consents

Exclusion Criteria:

1. Diagnosed as high-grade B-cell lymphoma, including non-specified and double-strike or triple-strike
2. Diagnosed as grey-zone lymphoma
3. Diagnosed as primary mediastinal large B-cell lymphoma
4. Diagnosed as CD20 negative diffuse large B-cell lymphoma
5. Active malignant tumor need be treated at the same time
6. Other malignant tumor history
7. Serious surgery and trauma less than two weeks
8. Systemic therapy for serious acute/chronic infection
9. Congestive heart failure, uncontrolled coronary heart disease, arrhythmia and heart infarction less than 6 months
10. Vaccination with live attenuated vaccine less than 4 weeks
11. HIV-positive, AIDS patients and untreated active hepatitis
12. Patients with a history of deep vein thrombosis or pulmonary embolism less than 12 months
13. Patients with a history of mental illness
14. Researchers determine unsuited to participate in this trial