A Study of Tyrosine Kinase Inhibitor Orelabrutinib (ICP-022) in Patients With r/r B-Cell Malignancies

Inclusion Criteria: 1. Signed Informed Consent. 2. Age ≥ 18 years. 3. Part 1: Patients with histologically confirmed relapsed or refractory B-cell malignancies, including Grades 1-3a FL, MZL, MCL, and CLL/SLL. Part 2: Patients with histologically confirmed B-cell malignancies including r/r FL, r/r MZL and CLL/SLL with/without prior treatment. 4. Life expectancy (in the opinion of the investigator) of ≥ 4 months. 5. ECOG performance status of 0 \~1. 6. Must have adequate organ function. 7. Negative test results for HBV (\[HBsAg (-)\] and non-active HBV or HCV infection Exclusion Criteria: 1. Pregnant or breast-feeding or intending to become pregnant during the study. 2. Prior treatment with systemic immunotherapeutic agents. 3. Known allergies to Orelabrutinib (ICP-022) or its excipients or infection with HIV. 4. Treatment with any chemotherapeutic agent, or any other investigational therapies within 4 weeks prior to first dose of the study drug. 5. History of allogeneic stem-cell (or other organ) transplantation or confirmed progressive PML. 6. Any external beam radiation therapy within 6 weeks prior to the first dose of the study drug. 7. Concurrent use of warfarin or other vitamin K antagonists or anticoagulation therapies or strong CYP3A inhibitor. 8. Active uncontrolled infections. 9. Recent infection requiring IV anti-infective treatment that was completed ≤ 14 days before the first dose of study drug. 10. Unresolved toxicities from prior anti-cancer therapy. 11. Medically apparent CNS lymphoma or leptomeningeal disease. 12. Current or previous history of CNS disease. 13. Major surgery or significant traumatic injury \< 28 days prior to the first dose of the study drug. 14. Patients with another invasive malignancy in the last 2 years. 15. Significant cardiovascular disease or active pulmonary disease. 16. Received systemic immunosuppressive medications.