Safety Of Using Escalated Doses Of Enoxaparin Prophylaxis In Adults With Acute Lymphoblastic Leukemia Receiving Asparaginase-Based Intensification Therapy.

141 Background: Venous thromboembolism (VTE) is a known complication in adults receiving asparaginase (ASNase) for acute lymphoblastic leukemia (ALL). We previously reported a 27.3% VTE rate in patients (pts) receiving a modified Dana Farber Cancer Institute (DFCI).We report updated results using two different dosing of enoxaparin as primary VTE prophylaxis. Methods: 62 pts ALL in complete remission, who were treated with a weekly ASNase-based DFCI intensification phase for at least 7 cycles (21 weeks) and received prophylaxis with enoxaparin targeted to 1 mg/kg subcutaneously (SC) daily (escalated dose group), were evaluated . Results were compared to a similar group of 41 patients who had received enoxaparin 40 mg for patients weighing less than 80 kg, and 60 mg for those 80 kg and above (low-dose group), and to a similar group of 99 pts previously treated with the same DFCI protocol without anticoagulation prophylaxis. Results: The actual mean dose of enoxaparin in the low-dose prophylaxis group was 0....