Changing Initial Glaucoma Medical Therapy Increases Healthcare Resource Utilization

J Ocul Pharmacol Ther. 2017 Oct;33(8):591-597. doi: 10.1089/jop.2017.0051. Epub 2017 Aug 30.

Abstract

Purpose: To determine the frequency and economic impact of changing initial glaucoma therapy for patients with newly diagnosed open-angle glaucoma (OAG) or ocular hypertension (OHT).

Methods: This retrospective longitudinal cohort study identified individuals within a large managed care network in the United States, who were newly diagnosed with OAG or OHT from 2001 to 2012 and were prescribed either a topical beta blocker (BB) or a prostaglandin analog (PGA). Claims data were analyzed over the 12-month period following their index prescription to determine physician prescribing habits, healthcare resource utilization patterns, and sociodemographic factors which may have contributed to changing the initial treatment strategy.

Results: A total of 15,019 beneficiaries were identified with newly diagnosed OAG or OHT and whose index therapy was either a topical BB or PGA. Among these enrollees 80.9% were started on PGAs, while 19.1% were started on BBs. Of these beneficiaries, 29.2% of those started on PGAs and 39.5% of those started on BBs underwent a change in therapy within 12 months of their index prescription. Those in the topical BB treatment group had a 38% increased odds of changing glaucoma therapy relative to those started on PGAs (odds ratio [OR] 0.61, 95% CI:0.56-0.68). Patients who changed therapy required more frequent office visits (P < 0.0001) and incurred higher median eye care related charges (P < 0.0001) compared to those who remained on the index therapy unchanged.

Conclusions: Changing initial ocular hypotensive therapy is common. Individuals who undergo a change in therapy required more frequent face-to-face monitoring and incurred higher healthcare related costs. Identifying strategies capable of optimizing the process of initiating ocular hypotensive therapy are appealing and possess the potential to improve patient outcomes and reduce healthcare costs.

Keywords: claims data; healthcare related costs; ocular hypertension; open-angle glaucoma; prostaglandin analogs; topical beta blocker.

Publication types

  • Comparative Study

MeSH terms

  • Administration, Topical
  • Adrenergic beta-Antagonists / administration & dosage*
  • Adrenergic beta-Antagonists / economics
  • Aged
  • Cohort Studies
  • Drug Substitution / economics
  • Drug Substitution / statistics & numerical data
  • Female
  • Glaucoma, Open-Angle / drug therapy*
  • Glaucoma, Open-Angle / economics
  • Health Care Costs / statistics & numerical data
  • Humans
  • Longitudinal Studies
  • Male
  • Managed Care Programs / economics
  • Managed Care Programs / statistics & numerical data
  • Middle Aged
  • Ocular Hypertension / drug therapy*
  • Ocular Hypertension / economics
  • Office Visits / statistics & numerical data
  • Practice Patterns, Physicians' / statistics & numerical data
  • Prostaglandins, Synthetic / administration & dosage*
  • Prostaglandins, Synthetic / economics
  • Retrospective Studies
  • Time Factors
  • United States

Substances

  • Adrenergic beta-Antagonists
  • Prostaglandins, Synthetic