TPM Regimen (Thalidomide Prednisone and Methotrexate) in LGLL
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- STATUS
- Recruiting
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- End date
- May 20, 2025
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- participants needed
- 42
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- sponsor
- Institute of Hematology & Blood Diseases Hospital
Summary
Large granular lymphocytic leukemia (LGLL) is a lymphoproliferative disease, with LGL infiltration in peripheral blood and bone marrow, hepatosplenomegaly, and cytopenia. Both T-LGLL and CLPD-NK are indolent disease and share similar biology and clinical course, and treated under the same strategy. So the investigators put them together as LGLL. The investigators used TPM regimen (thalidomide + prednison + methotrexate ) to treat LGLL since 2013, and 18/20 patients (90%) obtained clinical response, including 80% complete response. Adverse events (AE) of grade 3 and above are rare and safe. Therefore, the investigators designed this multicenter clinical trial to validate the efficacy of the TPM regimen in symptomatic T-LGLL and CLPD-NK.
Description
Because LGLL has continuously activated cytotoxic T lymphocytes, immunosuppressive therapy is the standard first-line therapy for T-LGLL and CLPD-NK. Previous studies showed that the overall response rate (ORR) of first-line oral immunosuppressants ranged from 21% to 85% (median: 50%). Both methotrexate and cyclosporine A are LGLL first-line treatment options, but the CR rate of methotrexate is only 21%, while the CR rate of CsA is less than 5%. There is insufficient evidence for the treatment of LGLL with prednisone and other glucocorticoids, but it can reduce RA-related inflammation and increase granulocyte levels. The TPM regimen was designed by the investigators. A pilot prospect observation showed that 18/20 (90%) patients obtained response, including 80% CR. This study is a prospective multiple center clinical trail to evaluate the efficacy of TPM regimen in the treatment of symptomatic LGLL. Eligible patients choose the initial treatment plan: thalidomide 50-100mg qn+ prednisone 0.5-1mg / kg qod +methotrexate 10mg / m2 / week. Four months is one course. Maximum three courses will be given if there is a response and thalidomide maintenance will be for another year.
Details
| Condition | T-CELL LARGE GRANULAR LYMPHOCYTIC LEUKEMIA, Clpd-Nk |
|---|---|
| Age | 18-100 years |
| Treatment | thalidomide + prednisone + methotrexate |
| Clinical Study Identifier | NCT04453345 |
| Sponsor | Institute of Hematology & Blood Diseases Hospital |
| Last Modified on | 19 February 2024 |
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