New investigations into the stability of Mesna using LC-MS/MS and NMR.
Expert Rev Anticancer Ther
; 16(1): 123-30, 2016.
Article
em En
| MEDLINE
| ID: mdl-26568378
ABSTRACT
INTRODUCTION:
It is important for sarcoma patients to receive the correct dose of Mesna as an adjuvant with ifosfamide to reduce the risk of hemorrhagic cystitis. This paper describes a study conducted to evaluate the physicochemical stability of Mesna for injection formulation over 14 days.METHODS:
Mesna samples (n = 4, 20 mg/ml) were incubated in glass vials at 37 + 0.5ºC. Mesna concentrations were determined by liquid chromatography-mass spectrometry (LC-MS/MS), and nuclear magnetic resonance spectroscopy (NMR) was used to detect degradation products. Evaporative losses and pH were also monitored.RESULTS:
Our results differed from those published in existing literature. Both LC-MS/MS and NMR indicated that Mesna was unstable. The mean percentage decrease in Mesna concentration was 40% by day 14 of the analysis. The presence of Mesna's dimer Dimesna was detected on day 0 and its concentration increased over time. Dimesna was the only by-product identified.CONCLUSION:
Both LC-MS/MS and NMR analyses confirmed the instability of Mesna and its conversion into Dimesna.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Espectroscopia de Ressonância Magnética
/
Cromatografia Líquida
/
Mesna
/
Espectrometria de Massas em Tandem
Idioma:
En
Revista:
Expert Rev Anticancer Ther
Assunto da revista:
NEOPLASIAS
/
TERAPEUTICA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Reino Unido