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AbbVie : Recent Reports from Abbvie Inc. Highlight Findings in Thiazoles (In Vitro Characterization of Ritonavir Drug Products and Correlation to Human in...

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10/05/2017 | 05:57pm CEST

Recent Reports from Abbvie Inc. Highlight Findings in Thiazoles (In Vitro Characterization of Ritonavir Drug Products and Correlation to Human in Vivo Performance)

By a News Reporter-Staff News Editor at Drug Week -- A new study on Thiazoles is now available. According to news reporting from North Chicago, Illinois, by NewsRx journalists, research stated, "Ritonavir (RTV) is a weakly basic drug with a pH-dependent solubility. In vitro dissolution and supersatuation behaviors of three Norvir oral products including the tablet, powder, and solution were investigated by two biorelevant dissolution methods with pH alteration: a two-stage dissolution test and a biphasic dissolution-partition test."

Financial support for this research came from AbbVie (see also Thiazoles).

The news correspondents obtained a quote from the research from Abbvie Inc., "The two-stage dissolution test revealed a high degree of supersaturation of RTV from these products accompanied by the occurrence of liquid-liquid phase separation (LLPS) in biorelevant dissolution media. Higher, stable apparent RTV concentrations were observed in the FeSSIF-V2 as compared to those in the FaSSIF-V2, which suggested a food effect with higher exposure in the fed state. This is inconsistent with the evaluation in vivo. The biphasic test revealed significantly lower degrees of supersaturation of RTV in the aqueous media from these dosage forms as compared to results of the two-stage dissolution test. RTV concentrations in octanol at 6 h obtained from the tablet and powder with the use of the biorelevant media are consistent with corresponding in vivo AUC and Cmax under the fasting and moderate fat fed (MFF) states and predict the food effect. The underlying mechanisms responsible for the food effect are also proposed. Fractional partition profiles of RTV obtained in octanol from these three Norvir oral products are in agreement with the corresponding fractional absorption profiles in vivo under both the fasting and MFF states."

According to the news reporters, the research concluded: "This study reveals a complex interplay among the dissolution, precipitation, and partition processes from these formulations that dictate the oral exposure of RTV."

For more information on this research see: In Vitro Characterization of Ritonavir Drug Products and Correlation to Human in Vivo Performance. Molecular Pharmaceutics, 2017;():. (American Chemical Society - www.acs.org; Molecular Pharmaceutics - www.pubs.acs.org/journal/mpohbp)

Our news journalists report that additional information may be obtained by contacting H. Xu, NCE-Formulation Sciences, Drug Product Development and Clinical Pharmacology and Pharmacometrics, Abbvie Inc , 1 North Waukegan Road, North Chicago, Illinois 60064, United States. Additional authors for this research include S. Vela, Y. Shi, P. Marroum and P. Gao.

The direct object identifier (DOI) for that additional information is: https://doi.org/10.1021/acs.molpharmaceut.7b00552. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.

Keywords for this news article include: Antiinfectives, Antiretrovirals, Antivirals, Illinois, Ritonavir, Thiazoles, North Chicago, United States, Drugs and Therapies, Protease Inhibitors, North and Central America.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2017, NewsRx LLC

(c) 2017 NewsRx LLC, source Health Newsletters

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Financials ($)
Sales 2017 27 965 M
EBIT 2017 11 932 M
Net income 2017 7 351 M
Debt 2017 25 677 M
Yield 2017 2,69%
P/E ratio 2017 20,25
P/E ratio 2018 16,46
EV / Sales 2017 6,42x
EV / Sales 2018 5,68x
Capitalization 154 B
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Richard A. Gonzalez Chairman & Chief Executive Officer
Azita Saleki-Gerhardt Senior Vice President-Operations
William J. Chase Chief Financial Officer & Executive Vice President
Michael E. Severino Chief Scientific Officer & Executive VP
Robert J. Alpern Independent Director
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