Data from FDA - Curated by EPG Health - Last updated 24 October 2017

Indication(s)

INDICATIONS AND USAGE Trifluridine Ophthalmic Solution, 1% (trifluridine ophthalmic solution) is indicated for the treatment of primary keratoconjunctivitis and recurrent epithelial keratitis due to herpes simplex virus, types 1 and 2.

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Advisory information

contraindications
CONTRAINDICATIONS Trifluridine Ophthalmic Solution, 1% is contraindicated for patients who develop hypersensitivity reactions or chemical intolerance to trifluridine.
Special warnings and precautions
PRECAUTIONS General Trifluridine Ophthalmic Solution, 1% should be prescribed only for patients who have a clinical diagnosis of herpetic keratitis. Trifluridine Ophthalmic Solution, 1% may cause mild local irritation of the conjunctiva and cornea when instilled, but these effects are usually transient. Although documented in vitro viral resistance to trifluridine has not been reported following multiple exposures to Trifluridine Ophthalmic Solution, 1% , the possibility of the development of viral resistance exists. Carcinogenesis, Mutagenesis, Impairment of Fertility Mutagenic Potential Trifluridine has been shown to exert mutagenic, DNA-damaging and cell-transforming activities in various standard in vitro test systems, and clastogenic activity in Vicia faba cells. It did not induce chromosome aberrations in bone marrow cells of male or female rats following a single subcutaneous dose of 100 mg/kg, but was weakly positive in female, but not in male, rats following daily subcutaneous administration at 700 mg/kg/day for 5 days. Although the significance of these test results is not clear or fully understood, there exists the possibility that mutagenic agents may cause genetic damage in humans. Oncogenic Potential Lifetime carcinogenicity bioassays in rats and mice given daily subcutaneous doses of trifluridine have been performed. Rats tested at 1.5, 7.5, and 15 mg/kg/day had increased incidences of adenocarcinomas of the intestinal tract and mammary glands, hemangiosarcomas of the spleen and liver, carcinosarcomas of the prostate gland, and granulosa-thecal cell tumors of the ovary. Mice were tested at 1, 5, and 10 mg/kg/day; those given 10 mg/kg/day trifluridine had significantly increased incidences of adenocarcinomas of the intestinal tract and uterus. Those given 10 mg/kg/day also had a significantly increased incidence of testicular atrophy as compared to vehicle control mice. Pregnancy Teratogenic Effects Trifluridine was not teratogenic at doses up to 5 mg/kg/day (23 times the estimated human exposure) when given subcutaneously to rats and rabbits. However, fetal toxicity consisting of delayed ossification of portions of the skeleton occurred at dose levels of 2.5 and 5 mg/kg/day in rats and at 2.5 mg/kg/day in rabbits. In addition, both 2.5 and 5 mg/kg/day produced fetal death and resorption in rabbits. In both rats and rabbits, 1 mg/kg/day (5 times the estimated human exposure) was a no-effect level. There were no teratogenic or fetotoxic effects after topical application of Trifluridine Ophthalmic Solution, 1% (approximately 5 times the estimated human exposure) to the eyes of rabbits on the 6th through the 18th days of pregnancy. In a non-standard test, trifluridine solution has been shown to be teratogenic when injected directly into the yolk sac of chicken eggs. There are no adequate and well-controlled studies in pregnant women. Trifluridine Ophthalmic Solution, 1% should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Nursing Mothers It is unlikely that trifluridine is excreted in human milk after ophthalmic instillation of Trifluridine Ophthalmic Solution, 1% because of the relatively small dosage (≤5 mg/day), its dilution in body fluids and its extremely short half-life (approximately 12 minutes). The drug should not be prescribed for nursing mothers unless the potential benefits outweigh the potential risks. Pediatric Use Safety and effectiveness in pediatric patients below six years of age have not been established. Geriatric Use No overall clinical differences in safety or effectiveness have been observed between elderly and other adult patients.
Adverse reactions
ADVERSE REACTIONS The most frequent adverse reactions reported during controlled clinical trials were mild, transient burning or stinging upon instillation (4.6%) and palpebral edema (2.8%). Other adverse reactions in decreasing order of reported frequency were superficial punctate keratopathy, epithelial keratopathy, hypersensitivity reaction, stromal edema, irritation, keratitis sicca, hyperemia, and increased intraocular pressure.

Usage information

Dosing and administration
DOSAGE AND ADMINISTRATION Instill one drop of Trifluridine Ophthalmic Solution, 1% onto the cornea of the affected eye every 2 hours while awake for a maximum daily dosage of nine drops until the corneal ulcer has completely re-epithelialized. Following re-epithelialization, treatment for an additional 7 days of one drop every 4 hours while awake for a minimum daily dosage of five drops is recommended. If there are no signs of improvement after 7 days of therapy or complete re-epithelialization has not occurred after 14 days of therapy, other forms of therapy should be considered. Continuous administration of Trifluridine Ophthalmic Solution, 1% for periods exceeding 21 days should be avoided because of potential ocular toxicity.
Pregnancy and lactation
Nursing Mothers It is unlikely that trifluridine is excreted in human milk after ophthalmic instillation of Trifluridine Ophthalmic Solution, 1% because of the relatively small dosage (≤5 mg/day), its dilution in body fluids and its extremely short half-life (approximately 12 minutes). The drug should not be prescribed for nursing mothers unless the potential benefits outweigh the potential risks.

More information

Category Value
Authorisation number NDA018299
Agency product number RMW9V5RW38
Orphan designation No
Product NDC 59762-0040
Date Last Revised 13-10-2017
Type HUMAN PRESCRIPTION DRUG
Storage and handling Store under refrigeration 2° to 8°C (36° to 46°F).
Marketing authorisation holder Greenstone LLC