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

Table 1 Search limits & terms*

Category:	Search Limits:
Databases	PubMed
Date range	June 16, 2005–June 15, 2016
Countries	United States
Combinations	Pregabalin AND ≥ 1 other relevant term related to restriction policies and health plans)
Topic:	Search Terms:
Drug	Lyrica OR pregabalin
Restriction	Restriction
Restriction	Prior authorization
Restriction	Step edit
Restriction	Step therapy
Restriction	Prior approval
Restriction	Quantity limits
Restriction	Fail first requirement
Restriction	Step protocol
Restriction	Cost sharing
Restriction	Cost sharing insurance
Health plan	Health plan
Health plan	Insurance
Health plan	Payer(s)
Health plan	Formulary
Health plan	Benefit design
Other	Access
Other	Health care costs
Other	Cost effectiveness
Other	Health care utilization
Other	Health care expenditures
Other	Cost analysis
Other	Cost utility
Other	Cost containment
Other	Economics
Other	Utilization management

* Boolean operators (to include different spellings and tenses of words) and alternative spellings (e.g. ‘healthcare’ / ‘health care’) were included

ISSN: 1472-6963