{ "schemaVersion": 2, "eyebrow": "Hematology Oncology", "title": "Cancer-Associated Thrombosis", "summary": "Select anticoagulation for cancer-associated venous thromboembolism by balancing recurrence risk, bleeding-prone tumor location, renal function, platelet count, drug interactions, oral absorption, and the feasibility of sustained treatment for at least 6 months.", "seoDescription": "Practical anticoagulant selection for cancer-associated thrombosis, including DOAC versus LMWH, bleeding risk, renal dysfunction, thrombocytopenia, and recurrence.", "clinicalQuestion": "How should clinicians select and modify anticoagulation for acute cancer-associated venous thromboembolism?", "specialty": "Hematology Oncology", "audience": "U.S. physicians and medical trainees", "tags": [ "cancer-associated thrombosis", "cancer-associated VTE", "DOAC", "LMWH", "apixaban", "dalteparin", "thrombocytopenia", "recurrent VTE" ], "keyTakeaways": [ "Use a DOAC or LMWH for most patients with cancer-associated VTE; individualize choice around bleeding-prone gastrointestinal or genitourinary tumors, drug interactions, renal function, oral intake, and patient preference. [6][13][14][24]", "LMWH is generally favored when creatinine clearance is less than 30 mL/min, when oral absorption is unreliable, or when a clinically important interaction may reduce or increase DOAC exposure. [6][13][18]", "In Hokusai-VTE Cancer, edoxaban reduced recurrent VTE numerically versus dalteparin but caused more major bleeding, with the significant excess concentrated in gastrointestinal cancer. [3]", "Treat acute cancer-associated VTE for at least 6 months; reassess continuation thereafter while active cancer or other persistent recurrence risks remain. [11][22]", "For breakthrough VTE, first verify adherence, dosing, interactions, and recurrent clot; a practical escalation is DOAC-to-LMWH or LMWH dose escalation by 20% to 25%, rather than routine IVC-filter placement. [16]", "With acute VTE and high recurrence risk during thrombocytopenia, platelet transfusion support to maintain platelets above 50,000/μL may permit therapeutic anticoagulation. [10][16]" ], "sections": [ { "id": "initial-agent-selection", "eyebrow": "Acute Treatment", "heading": "Choose DOAC or LMWH from the bleeding and feasibility profile", "intro": "The initial agent should match tumor bleeding risk, kidney function, medication exposure, and ability to absorb oral therapy.", "paragraphs": [ "For established cancer-associated VTE, select LMWH or a DOAC rather than a vitamin K antagonist when feasible. Both classes are supported for long-term treatment, whereas vitamin K antagonists add INR monitoring and interaction burden in patients receiving anticancer therapy. [13][14][15]", "A DOAC is reasonable when the patient can reliably take and absorb oral medication, has no major interacting anticancer or supportive-care drug, and does not have a tumor-associated mucosal bleeding concern. Apixaban, edoxaban, and rivaroxaban are identified options for long-term anticoagulation; in cancer-specific DOAC trials, transition from LMWH occurred when the next LMWH dose was due. [11][22]", "Prefer LMWH when the clinical consequence of mucosal bleeding is high, particularly with gastrointestinal malignancy. Across active-cancer VTE studies, rivaroxaban, edoxaban, and LMWH had similar efficacy, but bleeding was more frequent with DOACs; gastrointestinal and genitourinary bleeding was higher with DOACs than with LMWH. [3][24]" ], "bullets": [ "Favor a DOAC when oral administration, adherence, and low mucosal-bleeding risk outweigh the advantages of injectable treatment. [6][14][15]", "Favor LMWH when nausea, vomiting, gastrointestinal disturbance, impaired oral absorption, clinically relevant drug interactions, or high-risk gastrointestinal/genitourinary bleeding would make DOAC exposure or safety uncertain. [6][14][24]", "Reassess the choice whenever systemic therapy changes, because chemotherapy-associated drug interactions can alter anticoagulant safety or efficacy. [3][6][24]" ], "subsections": [], "table": { "caption": "Anticoagulant selection framework for cancer-associated VTE. [6][13][14][24]", "columns": [ "Clinical branch", "Preferred practical direction", "Decision rationale" ], "rows": [ [ "Low mucosal-bleeding concern; reliable oral intake; no meaningful interaction", "DOAC or LMWH", "DOACs and LMWH are accepted long-term options; oral therapy may reduce injection burden. [6][13][14][15]" ], [ "Active gastrointestinal malignancy or another tumor with substantial gastrointestinal bleeding risk", "LMWH favored", "Edoxaban increased major bleeding versus dalteparin in Hokusai-VTE Cancer, with significant excess bleeding in gastrointestinal cancer; guideline analysis also identifies higher gastrointestinal bleeding with DOACs. [3][24]" ], [ "Genitourinary tumor with high bleeding concern", "LMWH favored when bleeding risk is clinically important", "DOACs have been associated with more gastrointestinal and genitourinary bleeding than LMWH in active cancer. [24]" ], [ "Creatinine clearance less than 30 mL/min", "Avoid routine LMWH preference; individualize parenteral strategy", "Guideline summaries favor LMWH over UFH only in the absence of severe renal impairment; LMWH is not advised for dialysis in the cited clinical summary. [13][18]" ], [ "Unreliable oral absorption or important drug interaction", "LMWH favored", "Gastrointestinal disturbance and drug-drug interactions are key determinants of anticoagulant selection in cancer-associated VTE. [3][6]" ] ] } }, { "id": "regimens-and-duration", "eyebrow": "Regimen Planning", "heading": "Use therapeutic dosing and plan a minimum 6-month treatment course", "intro": "Dose selection must be tied to the chosen agent, renal function, and the intended treatment phase.", "paragraphs": [ "When LMWH is selected, one cited dosing approach is 1 mg/kg subcutaneously every 12 hours; for creatinine clearance less than 30 mL/min, the cited summary lists 1 mg/kg once daily and advises avoiding LMWH in dialysis. Renal impairment should trigger reassessment of agent selection because both recurrent VTE and major bleeding were higher in patients with baseline glomerular filtration rate below 60 mL/min/1.73 m2 in the CLOT-related analysis. [18][22]", "Dalteparin has trial-based cancer-associated thrombosis dosing of 200 IU/kg subcutaneously daily for 1 month followed by 150 IU/kg daily for 5 months. Tinzaparin was studied at 175 IU/kg once daily for 6 months. These regimens establish therapeutic LMWH options but do not remove the need to tailor therapy to renal function and bleeding risk. [22]", "Plan at least 6 months of therapeutic anticoagulation for cancer-associated VTE. At the 6-month review, do not stop automatically: ongoing active cancer and other persistent recurrence risks support continued therapy, whereas bleeding events, changing platelet counts, renal decline, and evolving treatment interactions may favor an agent change or discontinuation. [11][14]" ], "bullets": [ "Document the intended anticoagulant, dose, renal function, treatment start date, planned 6-month reassessment date, and anticipated systemic-therapy changes. [6][11][22]", "If switching from LMWH to a DOAC, initiate the DOAC when the next LMWH dose would have been due. [22]", "Avoid substituting a vitamin K antagonist solely for convenience when LMWH or a DOAC is feasible; VKA therapy requires INR targeting of 2.0 to 3.0 and has interaction concerns. [4][13]" ], "subsections": [], "table": { "caption": "Source-described LMWH regimens and duration anchors for cancer-associated VTE. [18][22]", "columns": [ "Agent or strategy", "Source-described regimen", "Use limitation" ], "rows": [ [ "LMWH", "1 mg/kg subcutaneously every 12 hours. [18]", "For creatinine clearance less than 30 mL/min, the cited summary lists 1 mg/kg once daily; avoid LMWH in dialysis. [18]" ], [ "Dalteparin", "200 IU/kg subcutaneously daily for 1 month, then 150 IU/kg daily for 5 months. [22]", "Use requires ongoing review of renal function, bleeding, platelet count, and injection feasibility. [6][22]" ], [ "Tinzaparin", "175 IU/kg subcutaneously once daily for 6 months. [22]", "Renal impairment was associated with more recurrent VTE and major bleeding in the cited analysis. [22]" ], [ "Treatment duration", "At least 6 months. [11][22]", "Continue beyond 6 months when persistent recurrence risks remain, with periodic benefit-harm reassessment. [11][14]" ] ] } }, { "id": "bleeding-and-thrombocytopenia", "eyebrow": "Safety Modification", "heading": "Modify anticoagulation for thrombocytopenia and active bleeding", "intro": "Platelet count and clot acuity determine whether therapeutic anticoagulation can be sustained.", "paragraphs": [ "For acute cancer-associated VTE with high recurrence risk and thrombocytopenia, consider platelet transfusion support to maintain platelet counts above 50,000/μL so therapeutic anticoagulation can continue. This approach prioritizes prevention of early thrombus progression or recurrence when thrombotic risk is high. [10][16]", "For platelet counts from 25,000 to 50,000/μL, individualize the decision according to clot burden, acuity, recurrence risk, current bleeding, and anticipated platelet recovery. A platelet count of at least 50,000/μL is identified as a threshold for pharmacologic prophylaxis; active bleeding, thrombocytopenia below 50,000/μL, hemorrhagic coagulopathy, or an indwelling neuraxial catheter are cited reasons to use mechanical rather than pharmacologic prophylaxis in hospitalized patients. [16][18]", "Do not extrapolate prophylaxis thresholds to a stable therapeutic-treatment plan without assessing the acute VTE risk. In thrombocytopenic cancer-associated splanchnic vein thrombosis, both major bleeding and recurrent or progressive thrombosis were frequent, supporting case-specific selection rather than a uniform anticoagulant rule. [23]" ], "bullets": [ "At every platelet decline, determine whether the patient has acute/high-risk VTE versus a lower-risk or more remote thrombotic event before reducing or holding treatment. [10][16]", "If active bleeding precludes pharmacologic prophylaxis in a hospitalized patient, use mechanical prophylaxis unless acute DVT or severe arterial insufficiency makes it unsuitable. [18]", "Reassess platelet trend and transfusion feasibility rather than relying on a single count when deciding whether to maintain therapeutic anticoagulation. [10][16]" ], "subsections": [], "table": { "caption": "Platelet-directed decisions reported for cancer-associated thrombosis and prophylaxis. [10][16][18]", "columns": [ "Platelet or bleeding state", "Practical action", "Boundary of evidence" ], "rows": [ [ "Acute VTE with high recurrence risk and thrombocytopenia", "Consider platelet transfusions to maintain platelets above 50,000/μL while providing therapeutic anticoagulation. [10]", "Requires individualized bleeding-risk assessment. [10][16]" ], [ "Platelets 25,000 to 50,000/μL", "Individualize anticoagulation according to thrombosis and bleeding risk. [16]", "No uniform regimen is established in the cited recommendation. [16]" ], [ "Active bleeding, platelets below 50,000/μL, hemorrhagic coagulopathy, or neuraxial catheter during hospitalization", "Use mechanical rather than pharmacologic prophylaxis when appropriate. [18]", "Mechanical prophylaxis is contraindicated with acute DVT or severe arterial insufficiency. [18]" ] ] } }, { "id": "breakthrough-vte", "eyebrow": "Treatment Failure", "heading": "Manage recurrent VTE by changing anticoagulant strategy", "intro": "A recurrent event requires confirmation and an exposure audit before labeling anticoagulant failure.", "paragraphs": [ "When VTE recurs during anticoagulation, first establish that the event is new or progressive and review missed doses, incorrect dosing, changes in renal function, vomiting or malabsorption, and newly introduced interacting cancer therapies. These factors are particularly consequential with oral anticoagulants because cancer treatment commonly introduces drug-drug interaction and gastrointestinal tolerance problems. [3][6][24]", "For confirmed breakthrough VTE, practical options are to increase the LMWH dose by 20% to 25% or change to a DOAC; if recurrence occurs during a DOAC, switch to LMWH; and if recurrence occurs during a vitamin K antagonist, switch to LMWH or a DOAC. Select the new strategy after reassessing tumor-associated bleeding risk rather than simply escalating the current oral agent. [16]", "Do not routinely place an IVC filter for recurrent VTE despite anticoagulation; the cited ASH recommendation suggests not using an IVC filter in this setting. A filter decision therefore requires a separate indication rather than recurrence alone. [16]" ], "bullets": [ "Breakthrough on DOAC: switch to LMWH after reviewing adherence, oral absorption, interacting drugs, renal function, and bleeding risk. [6][16]", "Breakthrough on LMWH: consider a 20% to 25% LMWH dose increase after confirming therapeutic administration and excluding correctable causes. [16]", "Breakthrough on VKA: switch to LMWH or a DOAC rather than relying on VKA adjustment alone. [16]" ], "subsections": [], "table": { "caption": "Escalation options for recurrent cancer-associated VTE during anticoagulation. [16]", "columns": [ "Current treatment at recurrence", "Escalation option", "Do not default to" ], "rows": [ [ "LMWH", "Increase LMWH dose by 20% to 25% or switch to a DOAC. [16]", "Routine IVC filter placement. [16]" ], [ "DOAC", "Switch to LMWH. [16]", "Assuming recurrence is pharmacologic failure without checking adherence, interactions, and absorption. [3][6][16]" ], [ "Vitamin K antagonist", "Switch to LMWH or a DOAC. [16]", "Routine IVC filter placement. [16]" ] ] } }, { "id": "prophylaxis-context", "eyebrow": "Prevention Context", "heading": "Do not let treatment choices substitute for indication-based prophylaxis", "intro": "Hospital, surgical, and ambulatory cancer settings have different prophylaxis thresholds and preferred agents.", "paragraphs": [ "For hospitalized patients with cancer and acute medical illness, consider pharmacologic prophylaxis in the absence of contraindications; LMWH is the preferred agent in the cited guideline summary, with UFH or LMWH also identified in NCCN-based inpatient recommendations. Do not provide pharmacologic prophylaxis simply because a patient is admitted for chemotherapy or stem-cell transplantation without a qualifying risk profile. [13][18]", "Patients undergoing major cancer surgery should receive perioperative thromboprophylaxis unless contraindicated. Guidelines summarized here recommend beginning prophylaxis preoperatively and continuing for at least 7 to 10 days postoperatively. [13]", "For ambulatory patients receiving systemic chemotherapy, do not use routine prophylaxis for all patients. Consider LMWH or a DOAC for patients with high or intermediate VTE risk, including a Khorana Risk Score of 2 or higher, after screening for bleeding risk and interaction concerns. [12][17]" ], "bullets": [ "Hospitalized medical oncology patient: assess acute illness, VTE risk factors, platelet count, active bleeding, and neuraxial catheter status before prophylaxis. [13][18]", "Major cancer surgery: start prophylaxis preoperatively and continue at least 7 to 10 days. [13]", "Ambulatory systemic therapy: use Khorana Risk Score of 2 or higher as a threshold to consider prophylaxis, then exclude patients whose bleeding risk or interactions make anticoagulation unsuitable. [17][24]" ], "subsections": [], "table": { "caption": "Setting-specific cancer thromboprophylaxis decisions. [12][13][17][18]", "columns": [ "Clinical setting", "Who should be considered", "Agent and timing" ], "rows": [ [ "Hospitalized medical oncology patient", "Acute medical illness without contraindication; ASCO summary specifies additional VTE risk factors. [13]", "LMWH preferred in the cited guideline summary; UFH or LMWH are listed in NCCN-based inpatient recommendations. [13][18]" ], [ "Admission for chemotherapy or stem-cell transplantation", "Do not use routine prophylaxis solely for that admission. [13]", "Assess for another qualifying medical-illness or VTE-risk indication. [13]" ], [ "Major cancer surgery", "Offer thromboprophylaxis unless contraindicated. [13]", "Begin preoperatively and continue at least 7 to 10 days. [13]" ], [ "Ambulatory systemic therapy", "Consider when Khorana Risk Score is 2 or higher after bleeding-risk review. [17]", "LMWH or a DOAC may be considered. 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Verify recommendations against current guidance and patient-specific factors.", "citations": [ { "number": 1, "title": "Arteriosclerosis, Thrombosis, and Vascular Biology", "detail": "www.ahajournals.org", "url": "https://www.ahajournals.org/doi/pdf/10.1161/ATVBAHA.123.318779", "authors": "www.ahajournals.org", "host": "www.ahajournals.org", "snippet": "Patients with cancer-associated VTE are at higher risk of both recurrent events despite anticoagulation and bleeding complications due to the anticoagulant", "score": 0.5377946 }, { "number": 2, "title": "Extracellular vesicles from the lung pro-thrombotic niche drive ...", "detail": "www.cell.com", "url": "https://www.cell.com/cell/fulltext/S0092-8674(25)00094-7", "authors": "www.cell.com", "host": "www.cell.com", "snippet": "Cancer-associated thrombosis develops, at least in part, via cooperation between tumor cells and platelets. Platelets that aggregate in response", "score": 0.33274442 }, { "number": 3, "title": "Treatment of cancer-associated venous thromboembolism in the age of direct oral anticoagulants", "detail": "www.sciencedirect.com", "url": "https://www.sciencedirect.com/science/article/pii/S0923753419312049", "authors": "www.sciencedirect.com", "host": "www.sciencedirect.com", "snippet": "Anticoagulation for cancer-associated venous thromboembolism (VTE) can be challenging due to complications—including bleeding and potential drug–drug interactions with chemotherapy—associated with vitamin K antagonists and inconvenience of low-molecular-weight heparin (LMWH). Direct oral anticoagula", "score": 0.81347597 }, { "number": 4, "title": "Treatment of venous thromboembolism in patients with cancer: A network meta-analysis comparing efficacy and safety of anticoagulants", "detail": "www.sciencedirect.com", "url": "https://www.sciencedirect.com/science/article/abs/pii/S0049384815300621", "authors": "www.sciencedirect.com", "host": "www.sciencedirect.com", "snippet": "The question on the optimal anticoagulation therapy for cancer patients with VTE is an ongoing area of research and debate , . Current guidelines of the major societies in the field agree in recommending a 3–6 months course of daily therapeutic doses of low molecular weight heparin (LMWH) as the fir", "score": 0.6989468 }, { "number": 5, "title": "Efficacy and Safety of Anticoagulant Therapy for the Treatment of Acute Cancer-Associated Thrombosis: A Systematic Review and Meta-Analysis - ScienceDirect", "detail": "www.sciencedirect.com", "url": "https://www.sciencedirect.com/science/article/abs/pii/S0049384814005246", "authors": "www.sciencedirect.com", "host": "www.sciencedirect.com", "snippet": "### International clinical practice guidelines including guidance for direct oral anticoagulants in the treatment and prophylaxis of venous thromboembolism in patients with cancer\n\n### Antithrombotic therapy for VTE disease: CHEST guideline and expert panel report\n\n### Pharmacology of Heparin and Re", "score": 0.6729558 }, { "number": 6, "title": "Treating cancer-associated venous thromboembolism: A practical approach", "detail": "www.sciencedirect.com", "url": "https://www.sciencedirect.com/science/article/pii/S0959804924009195", "authors": "www.sciencedirect.com", "host": "www.sciencedirect.com", "snippet": "malignancies. Furthermore, the article summarizes specific clinical scenarios that require additional treatment considerations, including extremes of body weight, nausea and gastrointestinal disturbances, compromised renal function, and anemia, and touches upon the relevance of drug–drug interaction", "score": 0.6654328 }, { "number": 7, "title": "Deep vein thrombosis: update on diagnosis and management", "detail": "onlinelibrary.wiley.com", "url": "https://onlinelibrary.wiley.com/doi/pdf/10.5694/mja2.50201", "authors": "onlinelibrary.wiley.com", "host": "onlinelibrary.wiley.com", "snippet": "Active cancer may be associated with an increased D- dimer level ... D- dimer testing to assess recurrence risk after unprovoked venous thromboembolism.", "score": 0.6241337 }, { "number": 8, "title": "THSNA 2024 Abstracts - Wiley Online Library", "detail": "onlinelibrary.wiley.com", "url": "https://onlinelibrary.wiley.com/doi/full/10.1002/ajh.27535", "authors": "onlinelibrary.wiley.com", "host": "onlinelibrary.wiley.com", "snippet": "Background: Patients with cancer-associated thrombosis (CAT) are at an increased risk of recurrent thrombosis and bleeding for several reasons,", "score": 0.5407062 }, { "number": 9, "title": "British Journal of Haematology | Wiley Online Library", "detail": "onlinelibrary.wiley.com", "url": "https://onlinelibrary.wiley.com/doi/full/10.1111/bjh.19414", "authors": "onlinelibrary.wiley.com", "host": "onlinelibrary.wiley.com", "snippet": "Anticoagulation management and related outcomes in patients with cancer-associated thrombosis and thrombocytopenia: a systematic review and", "score": 0.53895956 }, { "number": 10, "title": "Cancer‐associated venous thrombosis in adults (second edition)", "detail": "onlinelibrary.wiley.com", "url": "https://onlinelibrary.wiley.com/doi/10.1111/bjh.19414", "authors": "onlinelibrary.wiley.com", "host": "onlinelibrary.wiley.com", "snippet": "For patients with acute cancer-associated VTE with high risk of thrombosis recurrence, consider platelet transfusions to maintain counts above", "score": 0.52334785 }, { "number": 11, "title": "Cancer‐associated thrombosis and drug–drug interactions of ...", "detail": "acsjournals.onlinelibrary.wiley.com", "url": "https://acsjournals.onlinelibrary.wiley.com/doi/full/10.1002/cncr.34937", "authors": "acsjournals.onlinelibrary.wiley.com", "host": "acsjournals.onlinelibrary.wiley.com", "snippet": "apixaban, edoxaban, and rivaroxaban can be used for long-term anticoagulation. Treatment duration should be at least 6 months, but the optimal", "score": 0.7746691 }, { "number": 12, "title": "Associated Thrombosis - The Oncologist", "detail": "theoncologist.onlinelibrary.wiley.com", "url": "https://theoncologist.onlinelibrary.wiley.com/doi/pdf/10.1002/onco.13596", "authors": "theoncologist.onlinelibrary.wiley.com", "host": "theoncologist.onlinelibrary.wiley.com", "snippet": "Thromboprophylaxis with LMWH or DOACs may be considered in high-risk ambulatory patients with cancer such as those with advanced pancreatic cancer, NSCLC with", "score": 0.53415143 }, { "number": 13, "title": "Update on Guidelines for the Management of Cancer‐Associated Thrombosis - PMC", "detail": "pmc.ncbi.nlm.nih.gov", "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC7794170", "authors": "pmc.ncbi.nlm.nih.gov", "host": "pmc.ncbi.nlm.nih.gov", "snippet": "Initial anticoagulation may involve LMWH, UFH, fondaparinux, apixaban, or rivaroxaban. Among parenteral agents, ASCO recommends LMWH over UFH in the absence of severe renal impairment (CrCl <30 mL/min) . ITAC and NCCN recommend LMWH in patients with cancer who have CrCl ≥30 mL/min [10][11]. SEOM pre", "score": 0.8098936 }, { "number": 14, "title": "Treatment of Cancer-Associated Venous Thromboembolism with Low-Molecular-Weight Heparin or Direct Oral Anticoagulants: Patient Selection, Controversies, and Caveats. - Abstract", "detail": "pubmed.ncbi.nlm.nih.gov", "url": "https://pubmed.ncbi.nlm.nih.gov/33275319", "authors": "pubmed.ncbi.nlm.nih.gov", "host": "pubmed.ncbi.nlm.nih.gov", "snippet": "there are persistent risk factors for recurrent VTE. This article summarizes the evidence from clinical trials of LMWH and DOACs that underpins the NCCN guideline recommendations, addresses several controversies and caveats regarding anticoagulant treatment, and offers evidence-based, practical sugg", "score": 0.80844593 }, { "number": 15, "title": "DOACs or VKAs or LMWH – What is the optimal regimen for cancer-associated venous thromboembolism? A systematic review and meta-analysis - PMC", "detail": "pmc.ncbi.nlm.nih.gov", "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC9289311", "authors": "pmc.ncbi.nlm.nih.gov", "host": "pmc.ncbi.nlm.nih.gov", "snippet": "Clinical guidelines have upheld the conventional use of low-weight molecular heparin (LMWH) as standard of care and optional use of Vitamin-K Antagonists (VKA) for the treatment of cancer-associated VTE (Ca-VTE) . However, direct oral anticoagulants (DOACs), including rivaroxaban, dabigatran, edoxab", "score": 0.8036831 }, { "number": 16, "title": "Best evidence summary on anticoagulant management in patients with cancer-associated venous thromboembolism", "detail": "pmc.ncbi.nlm.nih.gov", "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC12547929", "authors": "pmc.ncbi.nlm.nih.gov", "host": "pmc.ncbi.nlm.nih.gov", "snippet": "prevention25.It is recommended to utilize DOACs for the prevention of VTE recurrence in patients with cancer.32,401aB26.For patients with cancer and recurrent VTE despite anticoagulation treatment, the ASH guideline panel suggests not using an IVC filter over using a filter.401bB27.In the event of V", "score": 0.7668008 }, { "number": 17, "title": "Direct-Acting Oral Anticoagulant Therapy in Cancer Patients—A Review", "detail": "pmc.ncbi.nlm.nih.gov", "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC10216040", "authors": "pmc.ncbi.nlm.nih.gov", "host": "pmc.ncbi.nlm.nih.gov", "snippet": "Currently available guidelines are considering the role of DOACs in VTE prophylaxis among patients with cancers in three main settings. The first one being patients undergoing surgical treatment of malignancies with no distinction between classic and laparoscopic procedures. In this case, usage of D", "score": 0.7286136 }, { "number": 18, "title": "Cancer-Associated Thrombosis - StatPearls - NCBI Bookshelf", "detail": "www.ncbi.nlm.nih.gov", "url": "https://www.ncbi.nlm.nih.gov/books/NBK562222", "authors": "www.ncbi.nlm.nih.gov", "host": "www.ncbi.nlm.nih.gov", "snippet": "Current guidelines from the National Comprehensive Cancer Network (NCCN) recommend anticoagulation with unfractionated heparin or low molecular weight heparin in hospitalized cancer patients as thromboprophylaxis. Mechanical prophylaxis should be used instead of anticoagulation therapy in patients e", "score": 0.70483154 }, { "number": 19, "title": "Cancer-associated thrombosis | Hematology, ASH Education Program", "detail": "ashpublications.org", "url": "https://ashpublications.org/hematology/article/2013/1/684/20760/Cancer-associated-thrombosis", "authors": "ashpublications.org", "host": "ashpublications.org", "snippet": "D-dimer was also predictive of cancer-associated VTE in colorectal cancer patients. Those with elevated D-dimer (defined as > 0.3 mg/L) had a 20", "score": 0.638588 }, { "number": 20, "title": "Cancer-associated thrombosis: updates and controversies", "detail": "ashpublications.org", "url": "https://ashpublications.org/hematology/article/2012/1/626/83837/Cancer-associated-thrombosis-updates-and", "authors": "ashpublications.org", "host": "ashpublications.org", "snippet": "D-dimer is another widely studied (and available) biomarker predictive of cancer-associated VTE. In colorectal cancer, patients with elevated D-", "score": 0.63234437 }, { "number": 21, "title": "How I treat breakthrough thrombosis in patients with cancer | Blood", "detail": "ashpublications.org", "url": "https://ashpublications.org/blood/article/147/16/1804/566135/How-I-treat-breakthrough-thrombosis-in-patients", "authors": "ashpublications.org", "host": "ashpublications.org", "snippet": "These findings suggest that nonhigh C-PTP combined with D-dimer testing may safely exclude recurrent PE. ... recurrent cancer-associated", "score": 0.6133529 }, { "number": 22, "title": "Venous Thromboembolism Prophylaxis and Treatment in Patients With Cancer: ASCO Clinical Practice Guideline Update", "detail": "ascopubs.org", "url": "https://ascopubs.org/doi/10.1200/JCO.19.01461", "authors": "ascopubs.org", "host": "ascopubs.org", "snippet": "cancer-associated thrombosis to tinzaparin (175 IU/kg once daily) or warfarin for 6 months.119 Renal impairment at baseline (glomerular filtration rate less than 60 mL/min/1.73 m 2) was found in 131 (15%) of 864 patients. Patients with renal impairment had higher rates of recurrent VTE and major ble", "score": 0.55709904 }, { "number": 23, "title": "Impact of thrombocytopenia on bleeding and thrombotic outcomes in ...", "detail": "ashpublications.org", "url": "https://ashpublications.org/bloodadvances/article/8/24/6151/518221/Impact-of-thrombocytopenia-on-bleeding-and", "authors": "ashpublications.org", "host": "ashpublications.org", "snippet": "Major bleeding and recurrent/progressive thrombosis were frequent complications in cancer-associated splanchnic vein thrombosis.", "score": 0.47139415 }, { "number": 24, "title": "Rationale and impact | Venous thromboembolic diseases: diagnosis, management and thrombophilia testing | Guidance | NICE", "detail": "www.nice.org.uk", "url": "https://www.nice.org.uk/guidance/ng158/chapter/Rationale-and-impact", "authors": "www.nice.org.uk", "host": "www.nice.org.uk", "snippet": "The committee noted the potential for interactions between anticoagulants and other drugs people with active cancer may be taking, such as chemotherapy drugs, and the possibility of an increased risk of bleeding with some types of tumours. The evidence suggested a higher rate of gastrointestinal and", "score": 0.7507177 } ], "publishedAt": "2026-09-15T21:24:33.058324+00:00", "updatedAt": "2026-09-15T21:24:33.058324+00:00", "readingMinutes": 6, "slug": "cancer-associated-thrombosis" }