EGATEN- triclabendazole tablet
Novartis Pharmaceuticals Corporation
EGATEN® is indicated for the treatment of fascioliasis in patients 6 years of age and older.
The recommended dose of EGATEN is 2 doses of 10 mg/kg given 12 hours apart in patients 6 years of age and older. The 250 mg tablets are functionally scored and divisible into two equal halves of 125 mg. If the dosage cannot be adjusted exactly, round the dose upwards.
Take EGATEN orally with food. EGATEN tablets can be swallowed whole or divided in half and taken with water or crushed and administered with applesauce. The crushed tablet mixed with applesauce is stable for up to 4 hours.
EGATEN (triclabendazole) tablet: 250 mg pale red, speckled, capsule shaped, biconvex with imprint of “EG EG” on one side and functionally scored on both sides.
EGATEN is contraindicated in patients with known hypersensitivity to triclabendazole and/or to other benzimidazole derivatives or to any of the excipients in EGATEN.
Transient prolongation of the mean QTc interval was noted on the electrocardiographic recordings in dogs [see Nonclinical Toxicology (13.2)]. Monitor ECG in patients with a history of prolongation of the QTc interval or a history of symptoms compatible with a long QT interval or when EGATEN is used in patients who receive drugs that prolong the QT interval.
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in clinical trials of another drug and may not reflect the rates observed in clinical practice.
The safety of triclabendazole was evaluated in 208 adult and pediatric patients 5 years of age and older who participated in 6 clinical trials for the treatment of fascioliasis and received 10 mg/kg or 20 mg/kg of triclabendazole; of these, 6 patients failed the 10 mg/kg dose and were retreated with 20 mg/kg. The 10 mg/kg dosing regimen is not approved [see Dosage and Administration (2)]. In these trials, 186 patients received a single dose of 10 mg/kg and 28 patients received a dose of 20 mg/kg as two divided doses. Pooled data for adverse reactions reported in more than 2% of the patients in these clinical trials for the 10 mg/kg and 20 mg/kg dosing regimens are presented in Table 1.
|1 Divided doses were given 6-48 hours apart |
2 Abdominal pain upper and abdominal pain
3 Jaundice and ocular icterus
|Adverse Reactions||Triclabendazole 10 mg/kg N = 186, n (%)|| Triclabendazole 20 mg/kg in two divided doses1 |
N = 28, n (%)
|Abdominal pain2||105 (56)||26 (93)|
|Hyperhidrosis||42 (23)||7 (25)|
|Nausea||15 (8)||5 (18)|
|Urticaria||12 (7)||3 (11)|
|Vomiting||11 (6)||2 (7)|
|Headache||11 (6)||4 (14)|
|Pruritus||8 (4)||1 (4)|
|Musculoskeletal chest pain||7 (4)||1 (4)|
|Decreased appetite||6 (3)||5 (18)|
|Chest pain||6 (3)||0|
|Chest discomfort||4 (2)||0|
Adverse reactions reported in less than or equal to 2% of patients who received a total of 10 mg/kg of triclabendazole were constipation, biliary colic, arthralgia, back pain, spinal pain, and chromaturia. Some adverse reactions associated with triclabendazole treatment in fascioliasis, e.g. abdominal pain, biliary colic, and jaundice, could be secondary to the infection and may be more frequent and/or severe in patients with a heavy worm burden.
The safety profile of triclabendazole 20 mg/kg in divided doses in a non-hepatic parasitic infection (N = 104) was generally similar to the safety profile in fascioliasis, except for a lower incidence of post-treatment abdominal pain.
Liver Enzyme Elevations
In clinical studies, up to one third of patients had liver enzyme elevations at baseline, which generally improved post-treatment. Of those with normal liver enzyme values at baseline, 6.8%, 4.5%, 4.2% and 3% of patients had post-treatment elevations in bilirubin, aspartate aminotransferase (AST), alkaline phosphatase (ALP) and alanine aminotransferase (ALT), respectively. Transient increases in liver enzymes and total bilirubin in fascioliasis patients receiving triclabendazole are reported in the literature.
Resistance to triclabendazole has been reported outside the United States [see Microbiology (12.4)].
No specific clinical drug interaction studies have been conducted for triclabendazole. However, in vitro data suggest the potential for increased plasma concentrations of CYP2C19 substrates with concomitant use of triclabendazole [see Clinical Pharmacology (12.3)]. The potential elevation in concentrations of concomitantly used CYP2C19 substrates is expected to be transient based on the short elimination half-life and short treatment duration of triclabendazole.
For those CYP2C19 substrate drugs that require therapeutic monitoring of systemic drug exposures, if the plasma concentrations of the CYP2C19 substrates are elevated during administration of triclabendazole, re-check the plasma concentration of the CYP2C19 substrates after cessation of triclabendazole therapy.
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