Prophylactic treatment for cytosine arabinoside-induced keratoconjunctivitis.

High-dose cytosine arabinoside (Ara-C) is known to cause keratoconjunctivitis in a large proportion of patients. Topical steroids are a popular choice of prophylactic treatment. The objective of this survey was to evaluate the type, dose, frequency and duration of drops used in all centres (n = 117) participating in the acute myeloid leukaemia trial 15 (AML 15), and to assess adherence to the trial protocol prescribed guidelines. All centres used prophylactic treatment; however, the dose of Ara-C at which it was initiated varied from 100 to 6000 mg/m(2)/day. All centres used some form of steroid prophylaxis with prednisolone 0.5% being the most commonly used (98/117), but only 6 of the 117 centres initiated treatment at doses recommended in the trial protocol. Ten centres used lubricants in addition to steroids. No centre reported the use of non-steroidal anti-inflammatory drops. The duration of treatment ranged from 2 days prior to commencing Ara-C to 28 days post-treatment. Twenty-two centres reported complications of which preservative allergy was the commonest. There is a large variation in prophylactic treatment practice in the UK. Clear guidance on the use of prophylaxis and further studies are required to ascertain the most effective prophylactic treatment and regimen.