[Effect of recombinant human interleukin 11 on the platelet after hematopoietic stem cell transplantation in patients with leukemia].

OBJECTIVE

To explore the effect and toxicity profile of recombinant human interleukin 11(rhIL-11) on the platelet after hematopoietic stem cell transplantation in patients with leukemia.

METHODS

Twenty-four patients with acute or chronic leukemia treated by allogeneic peripheral blood stem cell transplantation (PBSCT) were randomly divided into a test group and a control group. The patients in the test group were treated with rhIL-11 since the 13th day after PBSCT (1.5mg/d),while the control group were given symptomatic treatment.

RESULTS

The average time for the platelet to recover to the level of 20 x 10(9)/L was 20.8 days in the test group, and 26.0 days in control group respectively, there was significant difference (P<0.01). The average time for the platelet to recover to the level of 50 x 10(9)/L was 25.7 days in the test group, and 32.3 days in the control group respectively, there was also significant difference (P<0.01). The average time for the platelet transfusion was 2.2 in the test group, 4.1 in the control group, and there was significantly different (P<0.01). The average number of megakaryocytes was 12.2 in the test group, 4.8 in the control group on 30th day after the transplantation,and there was significant difference(P<0.01). The main side effects of rhIL-11 were nausea, vomit, debility, headache, dizzy and pain of injection site, and the degree was all Iapproximately II grade.

CONCLUSION

rhIL-11 has definite recuperative effect on the recovery of the platelet after PBSCT. There is little side effect, and it can be accepted.