Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0027497 (nausea)
 23,468 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Trimetrexate (TMTX) is a potent inhibitor of dihydrofolate reductase that circumvents the transport resistance seen with methotrexate and has a wide spectrum of preclinical activity. A total of 18 patients with advanced cancer were treated in a clinical and pharmacological phase I trial with TMTX given as a continuous 5-day intravenous infusion. Neutropenia, thrombocytopenia and stomatitis were the dose-limiting toxicities at the maximum tolerated dose of 50 mg/m2 per 120 h (10 mg/m2 per day for 5 days). There was one septic death associated with neutropenia. Other toxicities were mild rash, mild nausea and transiently raised serum transminase levels. Significant relationships between the dose given and the AUC of plasma TMTX and the steady-state plasma level were established. Significant, although weak, relationships between the percentage of change in neutrophils and platelets and both the AUC and steady-state plasma level of TMTX were also observed. No objective tumour responses were seen, although six patients had stable disease. The recommended phase II dose for a continuous infusion of trimetrexate is 40 mg/m2 per 120 h.
 ...
PMID:A phase I study of trimetrexate (NSC 352122) administered by 5-day continuous intravenous infusion. 252 92

Trimetrexate is a nonclassical antifolate with greater preclinical antitumor activity than methotrexate. Fourteen patients with stage III or IV non-small-cell lung cancer who had not previously received chemotherapy were given trimetrexate (12 mg/m2 intravenously daily for 5 days) every 3 weeks. No major objective responses were observed (95% confidence limits: 0-20%). Ten of the 14 patients had grade 2 or greater toxicity, with 50% experiencing grade 2 or greater leukopenia and/or thrombocytopenia. Nausea, vomiting, rash, mucositis, diarrhea, and serum glutamic-oxaloacetic transaminase (SGOT) elevations were also seen. At the dosage and schedule of trimetrexate used, no responses occurred in this population of patients with non-small-cell lung cancer. With the low response rate and the observed degree of myelosuppression, trimetrexate appears to have limited utility in this disease.
 ...
PMID:Phase II trial of trimetrexate in patients with stage III and IV non-small-cell lung cancer. 253 13