Dirlotapide (CP742033)

Dirlotapide (CP742033) (CP742033) 是一种肠道选择性微粒体甘油三酯转移蛋白 (MTP) 抑制剂，可有效减轻肥胖犬的体重。

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1mg

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Background

Dirlotapide (CP742033) is a gut-selective inhibitor of microsomal triglyceride transfer protein (MTP) that reliably produces weight loss in obese dogs.

Dogs receiving 0.3 mg dirlotapide/kg once daily have a small but significant (P=0.018) decrease (6.16 ± 2.22%, mean ± SD) in crude fat digestibility compared with the placebo-treated food-restricted dogs, but no difference in crude protein, dry matter, or energy digestibility is observed. Dirlotapide effectively reduces appetite and energy intake without affecting nutrient digestibility, except for a minimal decrease in fat digestibility[1]. Dirlotapide (0.5 mg/kg) results in a high rate of weight loss (3.3% weekly) and anorexia, emesis, and loose stools for some dogs. Dirlotapide produces weight loss by both reducing appetite (about 90% of the weight loss activity) and by increasing fecal fat excretion (about 10% of the weight loss activity)[2].

[1]. Kirk CA, et al. Influence of dirlotapide, a microsomal triglyceride transfer protein inhibitor, on the digestibility of a dry expanded diet in adult dogs. J Vet Pharmacol Ther. 2007 Aug;30 Suppl 1:66-72. [2]. Wren JA, et al. Biologic activity of dirlotapide, a novel microsomal triglyceride transfer protein inhibitor, for weight loss in obese dogs. J Vet Pharmacol Ther. 2007 Aug;30 Suppl 1:33-42.

Protocol

Animal experiment:

Dirlotapide in the commercial formulation of a 5-mg/mL oil solution, is administered at an initial rate of 0.5 mg/kg adjusted individually based on the weight loss change in the previous 2 weeks. Dogs assigned to placebo receive the oil vehicle (identical in appearance to the dirlotapide solution) at a rate of 0.1 mL/kg and 0.075 mL/kg during the weight loss and weight management phases, respectively. The dose volume is administered directly into the dog's mouth with a dosing syringe approximately 30 min before feeding.

参考文献:

[1]. Kirk CA, et al. Influence of dirlotapide, a microsomal triglyceride transfer protein inhibitor, on the digestibility of a dry expanded diet in adult dogs. J Vet Pharmacol Ther. 2007 Aug;30 Suppl 1:66-72.
[2]. Wren JA, et al. Biologic activity of dirlotapide, a novel microsomal triglyceride transfer protein inhibitor, for weight loss in obese dogs. J Vet Pharmacol Ther. 2007 Aug;30 Suppl 1:33-42.