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Trimetrexate(CI-898)
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
Trimetrexate(CI-898)图片
CAS NO:52128-35-5
规格:98%
分子量:369.42
包装与价格:
包装价格(元)
5mg电议
10mg电议
50mg电议

产品介绍
Trimetrexate是一种抗生素,是哺乳动物的二氢叶酸还原酶抑制剂。
CAS:52128-35-5
分子式:C19H23N5O3
分子量:369.42
纯度:98%
存储:Store at -20°C

Background:

Trimetrexate(CI-898) is a potent competitive inhibitor of bacterial, protozoan, and mammalian dihydrofolate reductase.IC50 value:Target: Antibiotic Trimetrexate therapy had minimal toxicity; transient neutropenia or thrombocytopenia occurred in 12 patients and mild elevation of serum aminotransferases in 4. We conclude that the combination of trimetrexate and leucovorin is safe and effective for the initial treatment of pneumocystis pneumonia in patients with AIDS and for the treatment of patients with intolerance or lack of response to standard therapies [1]. In noncomparative trials trimetrexate was effective in the treatment of P. carinii pneumonia (PCP) in patients with AIDS who were intolerant of or refractory to cotrimoxazole (trimethoprim/sulfamethoxazole) and pentamidine treatment. In these patients, 2- to 4-week survival rates of 48 to 69% were reported. In a comparative trial in the initial therapy of PCP, trimetrexate was less effective than cotrimoxazole in moderate to severe disease as evidenced by a significantly higher failure rate [2]. trimetrexate plus leucovorin was effective, albeit inferior to TMP-SMZ, for moderately severe P. carinii pneumonia but was better tolerated than TMP-SMZ [3].




[1]. Allegra CJ, et al. Trimetrexate for the treatment of Pneumocystis carinii pneumonia in patients with the acquired immunodeficiency syndrome. N Engl J Med. 1987 Oct 15;317(16):978-85. [2]. Fulton B, et al. Trimetrexate. A review of its pharmacodynamic and pharmacokinetic properties and therapeutic potential in the treatment of Pneumocystis carinii pneumonia. Drugs. 1995 Apr;49(4):563-76. [3]. Sattler FR, et al. Trimetrexate with leucovorin versus trimethoprim-sulfamethoxazole for moderate to severe episodes of Pneumocystis carinii pneumonia in patients with AIDS: a prospective, controlled multicenter investigation of the AIDS Clinical Trials Group Protocol 029/031. J Infect Dis. 1994 Jul;170(1):165-72.