Safety and efficacy of direct oral anticoagulants (DOAC) in cancer patients: Meta-analysis of randomized controlled trials (RCT).

Authors

null

Ali McBride

University of Arizona Cancer Center, Tucson, AZ

Ali McBride , Chinmayee Katragadda , Ivo Abraham

Organizations

University of Arizona Cancer Center, Tucson, AZ, University of Arizona, Tucson, AZ, Center for Health Outcomes and PharmacoEconomic Research, College of Pharmacy, University of Arizona, Tucson, AZ

Research Funding

Other

Background: The DOACs apixaban, edoxaban, rivaroxaban, dabigatran offer advantageous alternatives for venous thromboembolism (VTE) treatment in cancer patients, however, there lacks a prospective assessment in this population. We conducted a meta-analysis of RCTs comparing these DOACs to controls to evaluate the safety and efficacy of these new agents for patients with active cancer. Methods: We systematically searched PUBMED, EMBASE, Cochrane Reviews, CINAHL and Clinicaltrials.gov. Two authors (CK, IA) screened and reviewed abstracts and full text, with disagreements resolved by third author (AB). Data extracted included major bleeding and clinically relevant nonmajor bleeding for safety; recurrent VTE and VTE death for efficacy. Analyses included Mantel-Haenszel random effects risk ratios (RR); I2 for heterogeneity; and meta-regression by publication year. Results: Of 2307 records reviewed, 8 RCTs were retained. Pooled analysis yielded safety RR 0.82 (95%CI = 0.56-1.21, I2 = 44% ) and efficacy RR 0.94 (95%CI = 0.68-1.31; I2 = 0%). Meta-regression revealed no publication year bias. Conclusions: Current guidelines have not supported the use of DOACs in clinical cancer practice due to the paucity of data in this setting. Our results indicate no differential efficacy and no increased bleeding risk for DOACs in cancer patients. Additional prospective research is required to determine long term effects in subgroups of cancer patientss at higher risk for VTE or bleeding events.

Safety
Efficacy
DOAC Control RR95%CIDOACControl RR95%CI
EINSTEIN DVT 20101711814880.910.47-1.7441185890.600.17-2.18
EINSTEIN PE 201214114101081.330.62-2.86211431091.330.11-3.74
REMEDY 20132601590.780.18-21.11
RECOVER 201323159201521.100.63-1.9210173121620.780.35-1.76
MAGELLAN 20131629452903.161.17-8.5020202152031.340.71-2.54
HOKUSAI VTE 20132010925990.730.43-1.2241097990.520.16-1.72
AMPLIFY 2013118718800.560.28-1.123815780.580.14-2.34
HOKUSAI VTE 2016168520770.720.41-1.302857770.260.06-1.21

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Abstract Details

Meeting

2017 ASCO Annual Meeting

Session Type

Publication Only

Session Title

Publication Only: Health Services Research, Clinical Informatics, and Quality of Care

Track

Quality Care/Health Services Research

Sub Track

Safety and Quality of Care

Citation

J Clin Oncol 35, 2017 (suppl; abstr e18264)

DOI

10.1200/JCO.2017.35.15_suppl.e18264

Abstract #

e18264

Abstract Disclosures