Rivaroxaban for the treatment of deep vein thrombosis and ...

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Summary of uncertainties Has the impact on the ICER been used results from the rivaroxaban arm (from the main analysis) and adjusted the risk of events to reflect the increase in risk in cancer patients vs. non cancer patients using data from the EINSTEIN-DVT trial. It is unclear if this is representative of the risk of events in the cancer population? In cancer patients, the treatment effects were taken from the MTC. The manufacturer used the median. The ERG believes that the mean HR/OR would be more appropriate. The manufacturer also used a between study variability of U (0,5). The ERG believes this to be high and believes that a between study variability of U(0,2) or U(0,0.6) is more appropriate. Furthermore, is the analysis robust? Is it likely to change the conclusions? examined? This has been partially examined by the ERG in an exploratory analysis using the mean treatment effect assuming a between study variability of U(0,5), U(0,2), U(0,0.6) The model relies on a series of assumptions and data not specific to cancer patients were used. It is unclear if these are appropriate. Are results from the PSA robust? This has not been formally examined due to time and resource constraints. Several issues 141 If so, what are the results? If not, is it possible to give any indication of the direction of the results? Copyright 2012 Queen's Printer and Controller of HMSO. All rights reserved. rivaroxaban as outputs from the MTC indicated that rivaroxaban had poorer outcomes compared with LMWH. Exploratory analyses was undertaken by the ERG using the mean treatment effect assuming a between study variability of U(0,5), U(0,2), U(0,0.6). Results are presented in section 6. It is unclear how a change in other assumptions would affect the ICER due to the absence of data.
Summary of uncertainties Has the impact on the ICER been examined? were identified (Section 5.2.1.12), notably for the subgroup of cancer patients. 142 If so, what are the results? If not, is it possible to give any indication of the direction of the results? Copyright 2012 Queen's Printer and Controller of HMSO. All rights reserved.
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Rivaroxaban for the treatment of de
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TABLE OF CONTENTS List of Abbreviat
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Table 12 Time to therapeutic INR (I
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identified in the model). Table 40
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Figures Figure 1 Flow diagram for i
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Figure 23 Exploratory analysis in c
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MS Manufacturer’s submission NE S
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The dose of LMWH used reflects Amer
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xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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The exploratory analysis in cancer
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intended treatment duration of 12 m
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VTE therefore has a substantial bur
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indefinite treatment. VTE LMWH, low
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3 Critique of manufacturer’s defi
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Subgroups to be considered Special
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contraindications for the drug (as
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3.1.3 MTC populations The populatio
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3.2.2 Length of treatment As discus
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“No preventative therapy” is th
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It could be argued that poor TTR ma
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3.4.2 Outcomes recommended by EMA r
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4 CLINICAL EFFECTIVENESS 4.1 Critiq
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competitor products were excluded f
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Figure 1 Flow diagram for identifyi
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Table 7: Table showing list of rele
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The approach taken to quality asses
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o EINSTEIN-DVT dose-ranging study 3
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Trial name References, study type E
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4.2.1 Critique of pivotal EINSTEIN-
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However, the study design did not i
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Table 10: Summary of outcomes for E
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Chi-square analyses were undertaken
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clarification on this matter, the m
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Both of these factors are likely to
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It remains unclear why these patien
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leeding may be less suited to longe
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may account for the apparent differ
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Table 13: Criteria used to define a
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DVT and/or PE xxxxxxxxx xxxxxxxxxxx
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There is some doubt about the appro
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Subgroup analyses - EINSTEIN-Ext Su
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o It is clear that bleed events wer
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is likely to be small as the outcom
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depends on the specific parameteris
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4.4.3 Between study standard deviat
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Table 19.2: VTE recurrence (dichoto
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Table 22 Uncertainties in clinical
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The ERG are of the understanding th
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For the primary analysis, the rates
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In the economic model, the manufact
Page 101 and 102: Finally, in cancer patients, the ma
Page 103 and 104: Our experts believed that patients
Page 105 and 106: Similarly, the manufacturer used da
Page 107 and 108: Table 25: baseline risk of events f
Page 109 and 110: y intended treatment duration given
Page 111 and 112: eflect the current long term risk o
Page 113 and 114: survival of 70% in the 148 non-surg
Page 115 and 116: Monitoring xxxxxxxxxxxxxxxxxxxxxxxx
Page 117 and 118: The ERG acknowledges that the monit
Page 119 and 120: For patients managed in the inpatie
Page 121 and 122: The searches identified 2,811 poten
Page 123 and 124: The health state utility value for
Page 125 and 126: xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx
Page 127 and 128: few occasions for both VTEs and ble
Page 129 and 130: 2) the values used in the PSA for t
Page 131 and 132: 5.2.1 Results included in the manuf
Page 133 and 134: Figure 8: Tornado plot - Net Moneta
Page 135 and 136: 5.2.2.1.2. Results for patients for
Page 137 and 138: Figure 12: Cost-effectiveness plane
Page 139 and 140: Figure 14: Tornado plot - Net Monet
Page 141 and 142: 5.2.2.2 Subgroup analysis - cancer
Page 143 and 144: Figure 17: Tornado plot - Net Monet
Page 145 and 146: 5.2.3 Comment on validity of result
Page 147 and 148: Table 36: Summary of uncertainties
Page 149 and 150: Summary of uncertainties Has the im
Page 151: Summary of uncertainties Has the im
Page 155 and 156: Superseded - See Erratum 6. ADDITIO
Page 157 and 158: Superseded - See Erratum Table 37 S
Page 159 and 160: Superseded - See Erratum Table 38:
Page 163 and 164: Superseded - See Erratum Figure 21:
Page 167 and 168: Superseded - See Erratum 6.3. Proba
Page 173 and 174: 6.5. Exploratory analysis in cancer
Page 175 and 176: Figure 23: Exploratory analysis in
Page 177 and 178: Table 60: Deterministic base case a
Page 179 and 180: The ERG also examined the impact of
Page 181 and 182: days after stopping treatment.(Bull
Page 183 and 184: Both Phase II studies performed ana
Page 185 and 186: Appendix 2 Correction of Tables 29
Page 187 and 188: Appendix 3 Definition of `sufficien
Page 189 and 190: A bullet on page 42 states that `53
Page 191 and 192: Both numbers refer to the placebo a
Page 193 and 194: 9. REFERENCES 1. Bayer PLC. Rivarox
Page 195 and 196: http://www.dh.gov.uk/en/Publication
Page 197 and 198: 51. Department of Health. NHS Refer
Page 199: 77. NICE Guidance. Atrial fibrillat
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