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Pharmacoeconomic Report: Satralizumab (Enspryng): (Hoffmann-La Roche Limited): Indication: Neuromyelitis optica spectrum disorder [Internet]. Ottawa (ON): Canadian Agency for Drugs and Technologies in Health; 2021 Jun.

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Pharmacoeconomic Report: Satralizumab (Enspryng): (Hoffmann-La Roche Limited): Indication: Neuromyelitis optica spectrum disorder [Internet].

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Appendix 1Cost Comparison Table

The comparators presented in Table 11 have been deemed to be appropriate based on feedback from clinical expert(s). Comparators may be recommended (appropriate) practice or actual practice. Existing Product Listing Agreements are not reflected in the table and, as such, the table may not represent the actual costs to public drug plans.

Table 11CADTH Cost Comparison Table for Drugs Indicated for the Treatment of NMOSD

TreatmentStrengthFormPriceRecommended dosageAverage daily drug cost ($)Average annual drug cost ($)
Satralizumab (Enspryng) 120 mg/mL Single-use pre-filled syringe $9,450.0000 120 mg subcutaneously at weeks 0, 2, 4 for the first 3 administrations, followed by 120 mg every 4 weeks thereafter

Year 1:

362.47

Thereafter:

336.58

Year 1:

132,300

Thereafter:

122,850

Eculizumab (Soliris)10 mg/mLVial for IV infusion$6,742.0000900 mg weekly for first 4 weeks, followed by 1,200 mg for fifth dose 1 week later, then 1,200 mg every 2 weeks thereafter

Year 1:

1,994.89

Thereafter:

1,921.01

Year 1:

728,136

Thereafter:

701,168

NMOSD = neuromyelitis optica spectrum disorder.

Table 12CADTH Cost Comparison Table for Other Drugs Used for the Treatment of NMOSD (Not Indicated)

TreatmentStrengthFormPrice ($)Recommended dosageAverage daily drug cost ($)Average annual drug cost ($)
Rituximab (Rituxan)

10 mg/mL

100 mg/10 mL

500 mg/50 mL

1,400 mg/11.7 mL

1,600 mg/13.4 mL

Vial for IV infusion

48.2305a

337.6135

1,688.0780

198.9867b

195.6485b

375 mg/m2/week28.4310,173c
Tocilizumab (Actemra)

20 mg/mL (4 mL)

20 mg/mL (10 mL)

20 mg/mL (20 mL)

162 mg/0.9 mL

Vial for IV infusion

182.8000a

457.0000a

914.0000a

358.09050a

8 mg/kg every monthd504.83184,262c
Azathioprine (generic)50 mgTablet0.24052 to 3 mg/kge0.67 to 1.01246 to 369
Bortezomib (generic, Velcade)

3.5 mg

10 mL

Single-use vial for SC

186.9457b

400.6914b

cycles; 1 mg/m2 on days 1, 4, 8, and 11 per cyclef followed by 10-day treatment-free interval35.61(4 cycles, 84 days) 2,991c
Cyclophosphamide (Procytox)

25 mg

50 mg

Tablet

0.3520

0.4740

1,000 mg/m2 every 6 monthsg,h0.0932.23

200 mg/mL

500 mg/mL

1,000 mg/mL

2,000 mg/mL

Solution

0.6163i

84.5500b

123.5200b

217.4700b

0.0311.09
Cyclosporine (generic)

10 mg

25 mg

50 mg

100 mg

Capsule

0.6520

0.9952

1.9400

3.8815

150 mg/dayj5.822,125
Methotrexate (generic)2.5 mgTablet0.6325

Initiation: 7.5 mg weekly

Maintenance: 7.5 to 15 mg weeklyd

Initiation: 0.27

Maintenance: 0.27 to 0.54

Initiation: 99

Maintenance: 99 to 198

50 mg/2 mL

20 mg/2 mL

10 mg/0.2 mL

12.5 mg/0.25 mL

17.5 mg/0.35 mL

15 mg/0.3 mL

20 mg/0.4 mL

22.5 mg/0.45 mL

Solution

8.9200

12.5000

29.6400

31.2000

32.0000

32.7600

35.0000

35.0000

Initiation: 0.19

Maintenance: 0.19 to 0.38

Initiation: 70

Maintenance: 70 to 140

Mitoxantrone (generic)2 mg/mLVial63.0370b

Initiation:12 mg/m2 every 3 to 6 monthsd,h

Maintenance: 6 mg/m2 to 12 mg/m2 every 3 monthsd

Initiation: 7.60 to 19.26

Maintenance: 4.14 to 19.26

Initiation: 1,387 to 2,774

Maintenance: 1,513 to 2,774

Mycophenolate mofetil (generic, Cellcept)

250 mg

500 mg

Capsule

0.3712

0.7423

1,000 mg to 2,000 mg per dayk1.48 to 2.97541 to 1,084
200 mg/mLSolution1.8644b9.32 to 18.643,403 to 6,805
Prednisone (generic, Winpred 1 mg tablet)

1 mg

5 mg

50 mg

Tablet

0.1066

0.0220

0.1735

1 mg/kgj daily until taperk0.2695

NMOSD = neuromyelitis optica spectrum disorder; SC = subcutaneous.

Note: All prices are from the Ontario Drug Benefit Formulary (accessed March 19, 2020) unless otherwise indicated and do not include dispensing fees.

a

Saskatchewan Drug Formulary.

b

DeltaPA.

c

Assumes drug wastage.

d

Based on a study by Sherman et al. (2015){Sherman, 2015 #84}.

e

Assumes an average adult body weight of 70 kg.

f

Based on a study by Zhang et al. (2017){Zhang, 2017 #86}.

g

Based on personal communication with CADTH clinical experts consulted for this review.

h

Assumes a standard body surface area of 1.7 m2 for adults.

i

IQVIA DeltaPA (British Columbia formulary){REF: DeltaPA database}.

j

Based on a study by Kageyama et al. (2013){Kageyama, 2013 #85}.

k

Based on a study by Xu et al. (2016); adult dosage{Xu, 2016 #87}.

Copyright © 2021 Canadian Agency for Drugs and Technologies in Health.

The copyright and other intellectual property rights in this document are owned by CADTH and its licensors. These rights are protected by the Canadian Copyright Act and other national and international laws and agreements. Users are permitted to make copies of this document for non-commercial purposes only, provided it is not modified when reproduced and appropriate credit is given to CADTH and its licensors.

Except where otherwise noted, this work is distributed under the terms of a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International licence (CC BY-NC-ND), a copy of which is available at http://creativecommons.org/licenses/by-nc-nd/4.0/

Bookshelf ID: NBK583282

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