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Apixaban for Primary Prevention of Venous Thromboembolism in Patients With Multiple Myeloma Receiving Immunomodulatory Therapy.

ABSTRACT: Immunomodulatory drugs (IMiDs), including thalidomide, lenalidomide, and pomalidomide, have improved survival of patients with multiple myeloma (MM). However, these therapies are associated with an increased risk of venous thromboembolism (VTE). Apixaban has been approved for treatment of acute VTE and for risk reduction of recurrent VTE following initial therapy. In this phase IV single-arm study (NCT02958969), we aim to prospectively evaluate the safety and efficacy of apixaban for primary prevention of VTE in patients with MM. The primary efficacy objective of this trial is to determine the rate of symptomatic VTE, including deep vein thrombosis (DVT) and pulmonary embolism (PE), over 6 months. The primary safety objective is to determine the rate of major bleeding in MM patients receiving apixaban prophylaxis. If proven safe and effective, apixaban will emerge as a promising option for oral VTE prophylaxis in MM patients.

SUBMITTER: Cornell RF

PROVIDER: S-EPMC6401636 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Project description:BackgroundVenous thromboembolism (VTE) is one of the most common and severe complications of multiple myeloma (MM). The aim of this study was to learn about the current awareness regarding MM-associated VTE among Chinese hematologists.MethodsA nationwide, online, questionnaire-based survey was sent to the specialized hematologists in mainland China. The questionnaire investigated respondents' demographic and occupational characteristics, their ability to identify VTE risk factors, and their thromboprophylaxis decisions for different anti-MM regimens. Six clinical vignettes were used to evaluate hematologists' awareness of stratified thromboprophylaxis. The data were analyzed using SPSS software.ResultsA total of 518 valid questionnaires were received. Of the 518 hematologists investigated, only 23.7% of them could identify VTE-related risk factors correctly. Most hematologists could select appropriate thromboprophylaxis for common anti-MM regimens such as VCd (bortezomib, cyclophosphamide, and dexamethasone) and VRd (bortezomib, lenalidomide, and dexamethasone), but not for uncommon ones such as VTD-PACE (bortezomib, thalidomide, dexamethasone, cisplatin, doxorubicin, cyclophosphamide, and etoposide) and KRd (carfilzomib, lenalidomide, and dexamethasone). The results from the vignettes suggested that only 19.5% of the hematologists could be defined as the 'stratified thromboprophylaxis' group, and the awareness of stratified thromboprophylaxis depended significantly on physicians' age and working seniority.ConclusionThe results of our study showed that a large proportion of Chinese hematologists failed to recognize the VTE risk factors, most of them cannot select appropriate thromboprophylaxis for different MM therapeutic regimens and lack awareness of stratified thromboprophylaxis for MM-associated VTE. A standard VTE prevention guideline is urgently needed for the Chinese myeloma group. Continuous education for new professionals should be encouraged. A VTE collaborative group is supposed to be established in each hospital to enhance the overall medical care for VTE patients.

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Apixaban for Primary Prevention of Venous Thromboembolism in Patients With Multiple Myeloma Receiving Immunomodulatory Therapy.

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