title: Validation of pharmaceutical potency determinations by quantitative nuclear magnetic resonance spectrometry.
abstract: With the changing development paradigms in the pharmaceutical industry, laboratories are challenged to release materials for clinical studies with rapid turnaround times. To minimize cost demands, many businesses are looking to develop ways of using early Good Manufacturing Practice (GMP) materials of active pharmaceutical ingredients (API) for Good Laboratory Practice (GLP) toxicology studies. To make this happen, the analytical laboratory releases the material by one of three scenarios: (1) holding the GLP release until full GMP testing is ready, (2) issuing a separate lot number for a portion of the GMP material and releasing the material for GLP use, or (3) releasing the lot of material for GLP using alternate (equivalent) method(s) not specified for GMP release testing. Many companies are finding the third scenario to be advantageous in terms of cost and efficiency through the use of quantitative nuclear magnetic resonance (q-NMR). The use of q-NMR has proved to be a single-point replacement for routine early development testing that previously combined elements of identity testing, chromatographic assay, moisture analysis, residual solvent analysis, and elemental analysis. This study highlights that q-NMR can be validated to meet current regulatory analytical method guidelines for routine pharmaceutical analysis.
authors.affiliation: Global Research and Development, Abbott Laboratories, 200 Abbott Park Road, Abbott Park, Illinois 60064-6198, USA. gregory.webster@abbott.com
authors.forename: Gregory K
authors.initials: GK
authors.lastname: Webster
authors.forename: Ian
authors.initials: I
authors.lastname: Marsden
authors.forename: Cynthia A
authors.initials: CA
authors.lastname: Pommerening
authors.forename: Christina M
authors.initials: CM
authors.lastname: Tyrakowski
mesh_terms: D002626:Chemistry, Pharmaceutical / Q000379:methods*; D004355:Drug Stability; D016014:Linear Models; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D004364:Pharmaceutical Preparations / Q000032:analysis* / Q000737:chemistry; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D004364:Pharmaceutical Preparations