A Clinical Trial of TQ05105 Tablets in the Treatment of Chronic Graft-versus-host Disease

Inclusion Criteria: * Voluntary and signed informed consent, good compliance; * Age 18-70 years old; Karnofsky Performance Scale (KPS) ≥60 points; Life expectancy ≥ 6months. * Received allogeneic hematopoietic stem cell transplantation; * Diagnosis of moderate-to-severe chronic graft-versus-host disease (cGVHD) * Received systemic therapies for cGVHD; * Stable dose of glucocorticoids, other immunosuppressant therapy received within 2 weeks prior to screening; * Absolute Neutrophil Count (ANC) ≥ 1.0×10 9/L ；platelet count (PLT) ≥30×10 9 /L; Hemoglobin ≥80g/L; There were no obvious abnormalities in liver and kidney function and coagulation function; * Men and women of childbearing age agree to use contraceptive measures during the study period and within 6 months after the end of the study Exclusion Criteria: * Currently present or occured other malignancies within 3 years prior to first administration; * Known or suspected active acute graft versus host disease (aGVHD); * Presence of infection requiring treatment within 7 days prior to randomization; * Failed allogeneic hematopoietic stem cell transplantation within 6 months or 2 prior allogeneic hematopoietic stem cell transplants; * Use of Janus-activated kinase (JAK) inhibitors, Bruton's tyrosine kinase (BTK) inhibitors, or other, chemotherapeutic agents within 2 weeks prior to randomization; * Has a variety of factors that affect oral medications (e.g., inability to swallow, , intestinal obstruction, etc; * Those who have a history of psychotropic drug abuse and cannot be abstained from or have a mental disorder; * Have any severe or uncontrolled serious illness, including but not limited to uncontrolled hypertension, heart disease, hepatitis and epilepsy that require treatment; * Have any severe or uncontrolled serious illness, including but not limited to，uncontrolled hypertension heart disease, hepatitis and epilepsy that require treatment; * Those who are allergic to the study drug or its components; * Participation in other clinical trials or major surgery within 4 weeks prior to the first dose; * Subjects judged by the investigator to be unsuitable for enrollment;