Topical 5-Fluorouracil 1% as Primary Treatment for Ocular Surface Squamous Neoplasia

Ophthalmology. 2016 Jul;123(7):1442-8. doi: 10.1016/j.ophtha.2016.02.034. Epub 2016 Mar 27.

Abstract

Purpose: To determine the efficacy of topical 5-fluorouracil 1% (5-FU) as a primary treatment of ocular surface squamous neoplasia (OSSN).

Design: Retrospective study.

Participants: Topical 5-FU was used as primary therapy in 44 patients with OSSN.

Methods: 5-Fluorouracil 1% administered topically 4 times daily for 1 week followed by a drug holiday of 3 weeks. Patients were identified through a pharmacy database. Patients were excluded if 5-FU was used as adjuvant therapy, if they did not complete therapy, or if they were still actively receiving treatment for OSSN at the time of last follow-up.

Main outcome measures: The primary outcome measures were the frequency of complete resolution with topical 5-FU treatment and the rate of OSSN recurrence.

Results: Of the 44 patients identified, 32 were men and 12 were women. The mean age was 68 years. Complete resolution of OSSN was noted in 82% of patients (36/44); 18% (8/44) were considered treatment nonresponders. Patients were treated with a median of 4 cycles (range, 2-9 cycles). Nasal location was the only risk factor identified for nonresponse to therapy (P = 0.04). The median follow-up after resolution was 10 months (range, 2-77 months). In the 36 patients who showed complete resolution, 4 experienced tumor recurrence. Recurrence rates at 1 and 2 years were 6% and 15%, respectively, using Kaplan-Meier survival analysis. At least 1 side effect from the medication was reported by 61% of patients (21/44), but only 1 patient discontinued the medication because of intolerance. The most common side effect was pain (n = 17; 39%), followed by tearing (n = 10; 23%), photophobia (n = 6; 14%), itching (n = 4; 9%), swelling (n = 2; 5%), and infection (n = 1; 2%). No long-term complications were reported.

Conclusions: 5-Fluorouracil is effective and well tolerated as a primary treatment for OSSN, with 82% of tumors responding completely to therapy.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Antimetabolites, Antineoplastic / administration & dosage*
  • Carcinoma, Squamous Cell / drug therapy*
  • Conjunctival Neoplasms / drug therapy*
  • Corneal Diseases / drug therapy
  • Female
  • Fluorouracil / administration & dosage*
  • Humans
  • Kaplan-Meier Estimate
  • Male
  • Middle Aged
  • Neoplasm Recurrence, Local / epidemiology
  • Ophthalmic Solutions / therapeutic use*
  • Retrospective Studies
  • Risk Factors

Substances

  • Antimetabolites, Antineoplastic
  • Ophthalmic Solutions
  • Fluorouracil