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Table 1 Assumptions for annual transition probabilities, and ranibizumab dosing regimen

From: Cost-effectiveness of ranibizumab for neovascular age-related macular degeneration

 

Ranibizumab treatment

No ranibizumab treatment

 

Base-case scenario

Sustained-effect scenario

Non-sustained-effect scenario

 

Annual transition probabilities*

    

Time horizon

    

   Years 1 and 2

Results of MARINA, 0.5 mg ranibizumab arm.

As for base-case

As for base-case

Results of MARINA, sham arm.

   Years 3 and 4

Year 2 MARINA data, 0.5 mg ranibizumab arm.

As for base-case

Year 2 MARINA data, sham arm

Year 2 MARINA data, sham arm.

   Years 5 to 10

Year 5 to 10 progression rates of the geographic atrophy form of age-related macular degeneration

No further transitions (neither increasing nor decreasing visual acuity)

Year 2 MARINA data, sham arm, progression rates decreasing by 40% each year

Year 2 MARINA data, sham arm, progression rates decreasing by 40% each year

Ranibizumab dosing regimen

    
 

One dose monthly for the first 2 years, then every 3 months until end of Year 4. No ranibizumab thereafter.

Three doses at monthly intervals, then every 3 months until the end of Year 2.

No ranibizumab thereafter.

One dose monthly for the first 2 years.

No ranibizumab thereafter.

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  1. MARINA: Minimally Classic/Occult Trial of the Anti-VEGF Antibody Ranibizumab in the Treatment of Neovascular Age-Related Macular Degeneration[2]