A Study of TQB3473 Tablets in Subjects With Relapsed or Refractory Hematological Malignancies

Study Overview
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Brief Summary
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This is a study to evaluate the maximum tolerated dose (MTD), occurrence of all adverse events (AE) and serious adverse events (SAE) , pharmacokinetic parameters and antitumor effect of TQB3473 tablets in Chinese adult patients with Relapsed or refractory hematological malignancies.

Official Title
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A Phase I, Open-label, Dose Escalation and Expansion Study to Evaluate the Tolerance, Efficacy and Pharmacokinetics of TQB3473 Tablets

Conditions
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Relapsed/Refractory Hematological Malignancies

Intervention / Treatment
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* Drug: TQB3473


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: -1.Understood and signed an informed consent form. 2. Relapsed or refractory malignant hematological tumors. 3. Eastern Cooperative Oncology Group (ECOG) performance status score of 0 to 1; Life expectancy ≥12 weeks. 4. Has at least one measurable lesion. 5. Adequate organ system function. 6. Patients need to adopt effective methods of contraception. Exclusion Criteria: 1. Severe hypersensitivity to the drug or ingredients. 2. Has received chemotherapy, radiotherapy, immunotherapy or any other anti-tumor therapy within 14 days before the first dose. 3. Has received spleen tyrosine kinase (SYK) inhibitors. 4. Has to use ≥ 10 mg/day glucocorticoid prednisone. 5. Has received BTK inhibitors and PI3K inhibitors before the first dose. 6. Has received allogeneic hematopoietic stem cell transplantation. 7. Has received autologous hematopoietic stem cell transplantation within 12 weeks before the first dose. 8. Has any acute or chronic gastrointestinal diseases. 9. Has primary central nervous system lymphoma, or brain metastases with clinical symptoms, spinal cord compression, cancerous meningitis. 10. Intermediate-risk or high-risk myelodysplastic syndrome. 11. Pregnancy and lactation women. 12. Has any serious and/or uncontrollable disease. 13. Has active autoimmune disease and received immunosuppressive therapy. 14. Has a history of neurological or mental disorders. 15. Has uncontrollable systemic bacterial, fungal or viral active infections 16. The toxicity of previous antitumor treatment is not recovered to ≤ grade 1. 17. Has other malignancies. 18. Has received surgery within 4 weeks before the first administration. 19. Has participated in any other clinical trials. 20. According to the judgement of the investigators, there are other factors that may lead to the termination of the study.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: TQB3473 tablets<br>TQB3473 tablets administered once daily in 28-day cycle . | Drug: TQB3473<br>* TQB3473 tablets administered orally once. Then TQB3473 tablets administered orally, once daily in 28-day cycle after 3 days of first administration.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Maximum tolerated dose (MTD) | MTD was defined as the dose in which more than 2 of up to 6 patients developed a DLT. | up to 31 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Tmax |  | 30minutes, 1hour, 2hour, 4hour, 6hour, 8hour,12hour, 24hour, 48hour post-dose on day 1 and day 31; 30minutes pre-dose on day 1, day 4, day 11,day 18 ,day 25 and day 31. | 
| Cmax Cmax |  | 30minutes, 1hour, 2hour, 4hour, 6hour, 8hour,12hour, 24hour, 48hour post-dose on day 1 and day 31; 30minutes pre-dose on day 1, day 4, day 11,day 18 ,day 25 and day 31. | 
| AUC0-t |  | 30minutes, 1hour, 2hour, 4hour, 6hour, 8hour,12hour, 24hour, 48hour post-dose on day 1 and day 31; 30minutes pre-dose on day 1, day 4, day 11,day 18 ,day 25 and day 31. | 
| Overall response rate (ORR) | Percentage of subjects achieving complete response (CR) and partial response (PR). | up to 96 weeks | 
| Progression-free survival (PFS) | PFS defined as the time from first dose to the first documented progressive disease (PD) or death from any cause. | up to 96 weeks | 
| Duration of Response (DOR) | DOR defined as time from earliest date of disease response to earliest date of disease progression based on radiographic assessment. | up to 96 weeks |