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Purification and Analytics of a Monoclonal Antibody from Chinese Hamster Ovary Cells Using an Automated Microbioreactor System
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Bioanalytical method development, pharmacokinetics, and toxicity studies of paromomycin and paromomycin loaded in

Wahid Khan1, Shyam S Sharma, Neeraj Kumar

  • 1Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research (NIPER), S.A.S., Nagar, India.

Drug Testing and Analysis
|March 27, 2012
PubMed

Insights

New albumin microspheres effectively deliver paromomycin (PM) to target intracellular leishmania parasites. This formulation shows improved safety and efficacy compared to traditional PM injections for visceral leishmaniasis treatment.

Area of Science:

  • Pharmacology
  • Drug Delivery
  • Parasitology

Background:

  • Leishmania parasites reside intracellularly within macrophages, evading host defenses and antibiotics like paromomycin (PM).
  • Targeting intracellular parasites requires specialized drug delivery systems to enhance therapeutic efficacy.

Purpose of the Study:

  • To develop and evaluate paromomycin-loaded albumin microspheres (PM-MS) for improved targeting of intracellular leishmania parasites.
  • To assess the pharmacokinetic profile and safety of the novel PM-MS formulation.

Main Methods:

  • Development of PM-loaded albumin microspheres (PM-MS).
  • Establishment and validation of a sensitive bioanalytical method for quantifying PM in rat plasma.
  • Pharmacokinetic studies comparing PM and PM-MS administered via intramuscular and intravenous routes.
  • Acute and subacute toxicity evaluations of PM and PM-MS formulations.

Main Results:

  • A sensitive bioanalytical method with a quantification limit of 40 ng/ml was developed.
  • PM-MS administration resulted in an approximately 80% reduction in C(max) compared to other formulations.
  • Toxicity studies revealed no adverse effects for PM-MS at 90 mg/kg, unlike PM intramuscular injection which increased blood urea and BUN levels.

Conclusions:

  • PM-MS formulation demonstrates enhanced pharmacokinetic properties and a favorable safety profile.
  • The developed PM-MS represents a promising alternative to current paromomycin intramuscular injections for visceral leishmaniasis treatment.

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