Methods for concomitant administration of colchicine and a second active agent
View Patent ↗Methods for concomitant administration of colchicine together with one or more second active agents, e.g., ketoconazole and ritonavir, are disclosed. Such methods reduce the dangers commonly associated with such concomitant administration and provide additional benefits. Methods of notifying health care practitioners and patients regarding appropriate dosing for concomitant administration of colchicine together with second active agents are also provided.
1. A method of treating a patient with colchicine, comprising
orally administering an adjusted daily dosage amount of colchicine to the patient who is receiving concomitant administration of ketoconazole,
wherein the adjusted daily dosage amount of colchicine is 25% to 50% of an intended daily dosage amount of colchicine, and
wherein the intended daily dosage amount of colchicine is a dosage amount suitable for the patient if the patient were not receiving concomitant ketoconazole.
2. The method of claim 1 , wherein the treating is for the prophylaxis of gout flares, and wherein the intended daily dosage amount of colchicine suitable for the patient if the patient were not receiving concomitant ketoconazole is 0.6 mg twice daily or 0.6 mg once daily.
3. The method of claim 1 , wherein the treating is for acute gout flares, and wherein the intended daily dosage amount of colchicine suitable for the patient if the patient were not receiving concomitant ketoconazole is 1.2 mg at the first sign of flare, followed by 0.6 mg one hour later, dose to be repeated no earlier than 3 days.
4. The method of claim 1 , wherein the treating is for familial Mediterranean fever
wherein the adjusted daily dosage amount of colchicine is a maximum colchicine dosage amount of 0.6 mg of colchicine per day which is a reduction from the intended daily dosage amount of colchicine in the absence of concomitant ketoconazole wherein the intended daily dosage amount is a maximum daily dosage amount as follows:
Daily dosage amount
Age
Usual
Maximum
Adults and children >12 years
1.2 mg
2.4 mg
Children >6 to 12 years
0.9 mg
1.8 mg
Children 4 to 6 years
0.3 mg
1.8 mg.
5. The method of claim 2 , wherein the adjusted daily dosage amount of colchicine is 25% of a 0.6 mg twice daily intended dose.
6. The method of claim 2 , wherein the adjusted daily dosage amount of colchicine is 25% of a 0.6 mg once daily intended dose.
7. The method of claim 1 , wherein the concomitantly administered dose of ketoconazole is 200 mg twice per day.
8. The method of claim 3 , wherein the adjusted daily dosage amount is about 50% of the intended daily dosage amount.