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See also:
All DVT prophylaxis clinical trials
All clinical trials of new anticoagulants
All clinical trials of extended rivaroxaban
|
|
Treatments
Studied treatment |
extended thromboprophylaxis with rivaroxaban 10mg once daily for 31-39 days
started
6 to 8 hours after wound closure
|
Control treatment |
short-term
thromboprophylaxis with enoxaparin 40mg subcutaneous once daily for 10-14 days
initiated
12 h before surgery and restarted 6�8 h after wound
closure
|
Treatments description |
enoxaprin regimen |
started before surgery |
treatment duration |
31-39 days |
|
Patients
Patients |
patients undergoing elective total hip replacement |
Inclusion criteria |
Male and female patients aged 18 years or above; patients scheduled for elective total hip replacement |
Exclusion criteria |
Planned, staged total bilateral hip replacement Active bleeding or high risk of bleeding contraindicating treatment with low molecular weight heparin; Contraindication listed in the labeling or conditions precluding patient treatment with enoxaparin; conditions prohibiting bilateral venography (e.g. amputation of one leg, allergy to contrast media) |
Baseline characteristics |
Age (mean), years |
61.5 |
Total hip replacement |
100% |
Total knee replacement |
0% |
Weight, kg, |
74.75 |
Female |
53.65 |
general anesthesia |
33.6% |
|
Method and design
Randomized effectives |
1252 / 1257 (studied vs. control) |
Design |
Parallel groups |
Blinding |
double blind |
Follow-up duration |
30-42 days |
Number of centre |
123 |
Geographic area |
21 countries worldwide |
Primary endpoint |
DVT, PE , all cause death |
Results
Endpoint
Studied treat. n/N
Control treat. n/N
Graph
RR [95% CI]
major or clinically relevant non-major bleeding
121 / 1228
101 / 1229
1,20 [0,93;1,54]
All cause death
2 / 864
6 / 869
0,34 [0,07;1,66]
non-fatal pulmonary embolism
1 / 864
4 / 869
classic
0,25 [0,03;2,25]
proximal DVT
5 / 864
44 / 869
0,11 [0,05;0,29]
Major bleeding
1 / 1228
1 / 1229
classic
1,00 [0,06;15,98]
Symptomatic venous thromboembolism (DVT, PE)
3 / 1212
15 / 1207
0,20 [0,06;0,69]
total VTE and all-cause mortality
17 / 864
81 / 869
0,21 [0,13;0,35]
distal DVT
9 / 864
27 / 869
0,34 [0,16;0,71]
major VTE (fatal and non fatal DVT,PE)
6 / 961
49 / 962
0,12 [0,05;0,28]
Deep vein thrombosis
14 / 864
71 / 869
0,20 [0,11;0,35]
0
2
1.0
Relative risks
|
Endpoint |
Events (%) |
Relative Risk |
95% CI |
Endpoint definition in the trial |
Ref |
Studied treat. |
Control treat. |
major or clinically relevant non-major bleeding
|
121 / 1228 (9,9%) |
101 / 1229 (8,2%) |
1,20 |
[0,93;1,54] |
|
7763 |
All cause death
|
2 / 864 (0,2%) |
6 / 869 (0,7%) |
0,34 |
[0,07;1,66] |
|
7763 |
non-fatal pulmonary embolism
|
1 / 864 (0,1%) |
4 / 869 (0,5%) |
0,25 |
[0,03;2,25] |
|
|
proximal DVT
|
5 / 864 (0,6%) |
44 / 869 (5,1%) |
0,11 |
[0,05;0,29] |
|
|
Major bleeding
|
1 / 1228 (0,1%) |
1 / 1229 (0,1%) |
1,00 |
[0,06;15,98] |
|
|
Symptomatic venous thromboembolism (DVT, PE)
|
3 / 1212 (0,2%) |
15 / 1207 (1,2%) |
0,20 |
[0,06;0,69] |
|
7763 |
total VTE and all-cause mortality
|
17 / 864 (2,0%) |
81 / 869 (9,3%) |
0,21 |
[0,13;0,35] |
|
|
distal DVT
|
9 / 864 (1,0%) |
27 / 869 (3,1%) |
0,34 |
[0,16;0,71] |
|
|
major VTE (fatal and non fatal DVT,PE)
|
6 / 961 (0,6%) |
49 / 962 (5,1%) |
0,12 |
[0,05;0,28] |
|
|
Deep vein thrombosis
|
14 / 864 (1,6%) |
71 / 869 (8,2%) |
0,20 |
[0,11;0,35] |
|
|
The primary endpoint (if exists) appears in blod characters
|
Reference(s) used for data extraction:
7763: Kakkar AK, Brenner B, Dahl OE, Eriksson BI, Mouret P, Muntz J, Soglian AG, Pap AF, Misselwitz F, Haas SExtended duration rivaroxaban versus short-term enoxaparin for the prevention of venous thromboembolism after total hip arthroplasty: a double-blind, randomised controlled trial.Lancet 2008 Jun 24;:
|
Endpoint |
studied treat. |
control treat. |
mean diff |
Absolute risk reduction
|
Endpoint |
Events rate |
Absolute risk reduction (ARR) |
Studied treat. |
Control treat. |
major or clinically relevant non-major bleeding |
9,85% |
8,22% |
1,6%
|
All cause death |
2,31‰ |
6,90‰ |
-4,6‰
|
non-fatal pulmonary embolism |
1,16‰ |
4,60‰ |
-3,4‰
|
proximal DVT |
5,79‰ |
5,06% |
-44,8‰
|
Major bleeding |
0,81‰ |
0,81‰ |
0,0‰
|
Symptomatic venous thromboembolism (DVT, PE) |
2,48‰ |
1,24% |
-10,0‰
|
total VTE and all-cause mortality |
1,97% |
9,32% |
-73,5‰
|
distal DVT |
1,04% |
3,11% |
-20,7‰
|
major VTE (fatal and non fatal DVT,PE) |
6,24‰ |
5,09% |
-44,7‰
|
Deep vein thrombosis |
1,62% |
8,17% |
-65,5‰
|
Meta-analysis of all similar trials:
anticoagulant in DVT prophylaxis for orthopedic surgery
antithrombotics in DVT prophylaxis for orthopedic surgery
antithrombotics in DVT prophylaxis for elective hip replacement
direct factor Xa inhibitors in DVT prophylaxis for all type of patients
new anticoagulants in DVT prophylaxis for all type of patients
new anticoagulants in DVT prophylaxis for elective hip replacement
Reference(s)
-
Kakkar AK, Brenner B, Dahl OE, Eriksson BI, Mouret P, Muntz J, Soglian AG, Pap AF, Misselwitz F, Haas S.
Extended duration rivaroxaban versus short-term enoxaparin for the prevention of venous thromboembolism after total hip arthroplasty: a double-blind, randomised controlled trial..
Lancet 2008 Jun 24;:
Pubmed
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Hubmed
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