Skip to main content

Table 2 Designs of the identified studies evaluating restriction policies for pregabalin

From: A systematic review of the effectiveness of policies restricting access to pregabalin

 

Margolis et al., 2009 [27]

Margolis, et al., 2010 [28]

Bazalo et al., 2010 [26]

Udall et al., 2014 [30]

Suehs et al., 2014 [31]

Placzek et al., 2014 [29]

Null et al., 2016 [32]

Martin et al., 2016 [33]

Study design (population)

Retrospective database (Medicaid)

Retrospective database (commercial)

Modeling (IMS prescription data)

Retrospective database (commercial)

Retrospective database (Medicare)

Retrospective database (commercial)

Retrospective database (Medicare & commercial)

Retrospective database (commercial)

Number of patients

Restricted, n = 424; unrestricted, n = 5153

Restricted, n = 2084; unrestricted, n = 1320

Not applicable

Restricted, n = 3876; unrestricted, n = 3876

Restricted, n = 13,911; unrestricted, n = 13,911

Restricted, n = 29,283; unrestricted, n = 463

Not applicable

Restricted, n = 1218; unrestricted, n = 1218

Restriction type

PA

PA

PA

ST

ST

PA

ST

Mail order requirement

Conditions evaluated

PHN; pDPN

PHN; pDPN

PHN; pDPN; FM; partial-onset seizures

PHN; pDPN; FM

PHN; pDPN

pDPN; FM

pDPN; FM; PHN

PHN; pDPN; FM; partial-onset seizures

  1. Abbreviations: FM fibromyalgia, PA prior authorization, pDPN painful diabetic peripheral neuropathy, PHN postherpetic neuralgia, ST step therapy