Cochrane · systematic review · CD014739

Antithrombotic therapy for ambulatory patients with multiple myeloma receiving immunomodulatory agents

Kahale, LA, Matar, CF, Tsolakian, IG, et al. · Cochrane Database of Systematic Reviews · 2021 · Cochrane Library

SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
34
current version
GRADE rated
24
No studies
10
Included studies
NR
No studies 10 · 29.4%Ungraded 0 · 0%Very low 24 · 70.6%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Aspirin (ASA) compared to vitamin K antagonist (VKA) for ambulatory patients with multiple myeloma receiving immunomodulatory agents: 6 months follow‐up

Population: ambulatory patients with multiple myeloma receiving immunomodulatory agents: 6 months follow‐up
5 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality
Aspirin (ASA) vs vitamin K antagonist (VKA)
RR 3 [0.12, 73.24]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Symptomatic deep vein thrombosis
Aspirin (ASA) vs vitamin K antagonist (VKA)
RR 0.57 [0.24, 1.33]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Pulmonary embolism
Aspirin (ASA) vs vitamin K antagonist (VKA)
RR 1 [0.25, 3.95]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Major bleeding
Aspirin (ASA) vs vitamin K antagonist (VKA)
RR 7 [0.36, 134.72]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Minor bleeding
Aspirin (ASA) vs vitamin K antagonist (VKA)
RR 6 [0.73, 49.43]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision

Aspirin (ASA) compared to vitamin K antagonist (VKA) for ambulatory patients with multiple myeloma receiving immunomodulatory agents: 2 years follow‐up

Population: ambulatory patients with multiple myeloma receiving immunomodulatory agents
5 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality
Aspirin (ASA) vs vitamin K antagonist (VKA)
RR 0.5 [0.05, 5.47]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Symptomatic deep vein thrombosis
Aspirin (ASA) vs vitamin K antagonist (VKA)
RR 0.71 [0.35, 1.44]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Pulmonary embolism
Aspirin (ASA) vs vitamin K antagonist (VKA)
RR 1 [0.25, 3.95]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Major bleeding ‐ not reported
Aspirin (ASA) vs vitamin K antagonist (VKA)
no estimate extractedNRNo studies
Minor bleeding ‐ not reported
Aspirin (ASA) vs vitamin K antagonist (VKA)
no estimate extractedNRNo studies

Aspirin (ASA) compared to low molecular weight heparin (LMWH) for ambulatory patients with multiple myeloma receiving immunomodulatory agents: 6 months follow‐up

Population: ambulatory patients with multiple myeloma receiving immunomodulatory agents
5 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality
Aspirin (ASA) vs low molecular weight heparin (LMWH)
RR 1 [0.06, 15.81]2 studies · 781 participantsVery low
Downgraded: risk of bias, imprecision
Symptomatic deep vein thrombosis
Aspirin (ASA) vs low molecular weight heparin (LMWH)
RR 1.23 [0.49, 3.08]2 studies · 781 participantsVery low
Downgraded: risk of bias, imprecision
Pulmonary embolism
Aspirin (ASA) vs low molecular weight heparin (LMWH)
RR 7.71 [0.97, 61.44]2 studies · 781 participantsVery low
Downgraded: risk of bias, imprecision
Major bleeding
Aspirin (ASA) vs low molecular weight heparin (LMWH)
RR 6.97 [0.36, 134.11]2 studies · 781 participantsVery low
Downgraded: risk of bias, imprecision
Minor bleeding
Aspirin (ASA) vs low molecular weight heparin (LMWH)
RR 1.42 [0.35, 5.78]2 studies · 781 participantsVery low
Downgraded: risk of bias, imprecision

Aspirin (ASA) compared to low molecular weight heparin (LMWH) for ambulatory patients with multiple myeloma receiving immunomodulatory agents: 2 years follow‐up

Population: ambulatory patients with multiple myeloma receiving immunomodulatory agents
5 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality
Aspirin (ASA) vs low molecular weight heparin (LMWH)
RR 1 [0.06, 15.89]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Symptomatic deep vein thrombosis
Aspirin (ASA) vs low molecular weight heparin (LMWH)
RR 1.2 [0.53, 2.72]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Pulmonary embolism
Aspirin (ASA) vs low molecular weight heparin (LMWH)
RR 9 [0.49, 166.17]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Major bleeding ‐ not reported
Aspirin (ASA) vs low molecular weight heparin (LMWH)
no estimate extractedNRNo studies
Minor bleeding ‐ not reported
Aspirin (ASA) vs low molecular weight heparin (LMWH)
no estimate extractedNRNo studies

Vitamin K antagonist (VKA) compared to low molecular weight heparin (LMWH) for ambulatory patients with multiple myeloma receiving immunomodulatory agents: 6 months follow‐up

Population: ambulatory patients with multiple myeloma receiving immunomodulatory agents
5 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
RR 0.33 [0.01, 8.1]1 study · 439 participantsVery low
Downgraded: risk of bias, imprecision
Symptomatic deep vein thrombosis
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
RR 2.32 [0.91, 5.93]1 study · 439 participantsVery low
Downgraded: risk of bias, imprecision
Pulmonary embolism
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
RR 8.96 [0.49, 165.42]1 study · 439 participantsVery low
Downgraded: risk of bias, imprecision
Major bleeding ‐ not reported
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
no estimate extractedNRNo studies
Minor bleeding
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
RR 0.33 [0.03, 3.17]1 study · 439 participantsVery low
Downgraded: risk of bias, imprecision

Vitamin K antagonist (VKA) compared to low molecular weight heparin (LMWH) for ambulatory patients with multiple myeloma receiving immunomodulatory agents: 2 years follow‐up

Population: ambulatory patients with multiple myeloma receiving immunomodulatory agents
5 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
RR 2 [0.18, 21.9]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Symptomatic deep vein thrombosis
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
RR 1.7 [0.8, 3.63]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Pulmonary embolism
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
RR 9 [0.49, 166.17]1 study · 440 participantsVery low
Downgraded: risk of bias, imprecision
Major bleeding ‐ not reported
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
no estimate extractedNRNo studies
Minor bleeding ‐ not reported
Vitamin K antagonist (VKA) vs low molecular weight heparin (LMWH)
no estimate extractedNRNo studies

Aspirin (ASA) compared to direct oral anticoagulants (DOAC) for ambulatory patients with multiple myeloma receiving immunomodulatory agents: 6 months follow‐up

Population: ambulatory patients with multiple myeloma receiving immunomodulatory agents
4 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality ‐ not reported
Aspirin (ASA) vs direct oral anticoagulants (DOAC)
no estimate extractedNRNo studies
Symptomatic deep vein thrombosis ‐ not reported
Aspirin (ASA) vs direct oral anticoagulants (DOAC)
no estimate extractedNRNo studies
Major bleeding ‐ not reported
Aspirin (ASA) vs direct oral anticoagulants (DOAC)
no estimate extractedNRNo studies
Minor bleeding
Aspirin (ASA) vs direct oral anticoagulants (DOAC)
RR 5 [0.31, 79.94]1 study · 8 participantsVery low
Downgraded: risk of bias, imprecision