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Wang S, Ballard TE, Christopher LJ, Foti RS, Gu C, Khojasteh SC, Liu J, Ma S, Ma B, Obach RS, Schadt S, Zhang Z, Zhang D. The Importance of Tracking "Missing" Metabolites: How and Why? J Med Chem 2023; 66:15586-15612. [PMID: 37769129 DOI: 10.1021/acs.jmedchem.3c01293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
Technologies currently employed to find and identify drug metabolites in complex biological matrices generally yield results that offer a comprehensive picture of the drug metabolite profile. However, drug metabolites can be missed or are captured only late in the drug development process. This could be due to a variety of factors, such as metabolism that results in partial loss of the molecule, covalent bonding to macromolecules, the drug being metabolized in specific human tissues, or poor ionization in a mass spectrometer. These scenarios often draw a great deal of attention from chemistry, safety assessment, and pharmacology. This review will summarize scenarios of missing metabolites, why they are missing, and associated uncovering strategies from deeper investigations. Uncovering previously missed metabolites can have ramifications in drug development with toxicological and pharmacological consequences, and knowledge of these can help in the design of new drugs.
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Affiliation(s)
- Shuai Wang
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - T Eric Ballard
- Takeda Development Center Americas, Inc., 35 Landsdowne St, Cambridge, Massachusetts 02139, United States
| | - Lisa J Christopher
- Department of Clinical Pharmacology, Pharmacometrics, Disposition & Bioanalysis, Bristol-Myers Squibb, Route 206 & Province Line Road, Princeton, New Jersey 08543, United States
| | - Robert S Foti
- Preclinical Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Chungang Gu
- Drug Metabolism and Pharmacokinetics, Biogen Inc., 225 Binney Street, Cambridge, Massachusetts 02142, United States
| | - S Cyrus Khojasteh
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Joyce Liu
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Shuguang Ma
- Drug Metabolism and Pharmacokinetics, Pliant Therapeutics, 260 Littlefield Avenue, South San Francisco, California 94080, United States
| | - Bin Ma
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - R Scott Obach
- Pharmacokinetics, Dynamics, and Metabolism, Pfizer, Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Simone Schadt
- Roche Pharma Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Grenzacher Strasse 124, 4070 Basel, Switzerland
| | - Zhoupeng Zhang
- DMPK Oncology R&D, AstraZeneca, 35 Gatehouse Drive, Waltham, Massachusetts 02451, United States
| | - Donglu Zhang
- Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc., 1 DNA Way, South San Francisco, California 94080, United States
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Niesor EJ, Boivin G, Rhéaume E, Shi R, Lavoie V, Goyette N, Picard ME, Perez A, Laghrissi-Thode F, Tardif JC. Inhibition of the 3CL Protease and SARS-CoV-2 Replication by Dalcetrapib. ACS OMEGA 2021; 6:16584-16591. [PMID: 34235330 PMCID: PMC8230949 DOI: 10.1021/acsomega.1c01797] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) 3CL protease is a promising target for inhibition of viral replication by interaction with a cysteine residue (Cys145) at its catalytic site. Dalcetrapib exerts its lipid-modulating effect by binding covalently to cysteine 13 of a cholesteryl ester transfer protein. Because 12 free cysteine residues are present in the 3CL protease, we investigated the potential of dalcetrapib to inhibit 3CL protease activity and SARS-CoV-2 replication. Molecular docking investigations suggested that dalcetrapib-thiol binds to the catalytic site of the 3CL protease with a delta G value of -8.5 kcal/mol. Dalcetrapib inhibited both 3CL protease activity in vitro and viral replication in Vero E6 cells with IC50 values of 14.4 ± 3.3 μM and an EC50 of 17.5 ± 3.5 μM (mean ± SD). Near-complete inhibition of protease activity persisted despite 1000-fold dilution after ultrafiltration with a nominal dalcetrapib-thiol concentration of approximately 100 times below the IC50 of 14.4 μM, suggesting stable protease-drug interaction. The inhibitory effect of dalcetrapib on the SARS-CoV-2 3CL protease and viral replication warrants its clinical evaluation for the treatment of COVID-19.
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Affiliation(s)
| | - Guy Boivin
- Centre
Hospitalier Universitaire de Québec, Université Laval, Québec
City G1V 0A6, Canada
| | - Eric Rhéaume
- Montreal
Heart Institute, Université de Montréal, Montreal H1T 1C8, Canada
| | - Rong Shi
- Department
of Biochemistry, Microbiology and Bioinformatics, Université Laval, Quebec G1V 0A6, Canada
| | - Véronique Lavoie
- Montreal
Heart Institute, Université de Montréal, Montreal H1T 1C8, Canada
| | - Nathalie Goyette
- Centre
Hospitalier Universitaire de Québec, Université Laval, Québec
City G1V 0A6, Canada
| | - Marie-Eve Picard
- Department
of Biochemistry, Microbiology and Bioinformatics, Université Laval, Quebec G1V 0A6, Canada
| | | | | | - Jean-Claude Tardif
- Montreal
Heart Institute, Université de Montréal, Montreal H1T 1C8, Canada
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Abstract
The cholesterol ester transfer protein (CETP) inhibitor dalcetrapib has been under evaluation for its potential to prevent cardiovascular (CV) events for almost two decades. The current clinical development program, representing new advances in precision medicine and focused on a genetically defined population with acute coronary syndrome (ACS), is supported by a large body of pharmacokinetic and pharmacodynamic data as well as substantial clinical experience in over 13,000 patients and volunteers. Dalcetrapib treatment of 600 mg/day produces significant inhibition of CETP activity, and has been utilized in phase II and III studies, including CV endpoint trials. Numerous studies have investigated the interactions between dalcetrapib and most drugs commonly prescribed to CV patients and have not demonstrated any clinically significant effects. Evaluations in patients with renal and hepatic impairment demonstrate a greater exposure to dalcetrapib than in the non-impaired population, but long-term clinical studies including patients with mild to moderate hepatic and renal dysfunction demonstrate no increase in adverse events. Safety pharmacology and toxicology studies as well as the clinical safety experience support the continuing development of dalcetrapib as an adjunct to ‘standard of care’ for the ACS population. This article provides a full review of the pharmacokinetics, as well as pharmacodynamics and pharmacology, of dalcetrapib in the context of a large clinical program.
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Tan A, Fanaras JC. Use of high-pH (basic/alkaline) mobile phases for LC-MS or LC-MS/MS bioanalysis. Biomed Chromatogr 2018; 33:e4409. [PMID: 30315658 DOI: 10.1002/bmc.4409] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/28/2018] [Accepted: 10/09/2018] [Indexed: 12/25/2022]
Abstract
High-pH or basic/alkaline mobile phases are not commonly used in LC-MS or LC-MS/MS bioanalysis because of the deeply rooted concern with column instability and reduced detection sensitivity for basic compounds in high-pH mobile phases owing to charge neutralization. With the advancement of LC column technology and the wide recognition of the "wrong-way-round" phenomena, high-pH mobile phases are more and more used in LC-MS or LC-MS/MS bioanalysis to improve chromatographic peak shape, retention, selectivity, resolution, and detection sensitivity, not only for basic compounds, but also for many other compounds. In this article, the benefits, practical considerations, application examples and cautions for using high-pH mobile phases in LC-MS or LC-MS/MS bioanalysis are reviewed, with a focus on quantification. Furthermore, the future trends in this field are also envisaged. A total of 84 references are cited in this review.
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Affiliation(s)
- Aimin Tan
- Nucro-Technics, Scarborough, ON, Canada
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Profiling of dalcetrapib metabolites in human plasma by accelerator mass spectrometry and investigation of the free phenothiol by derivatisation with methylacrylate. J Pharm Biomed Anal 2018; 152:143-154. [DOI: 10.1016/j.jpba.2018.01.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/11/2018] [Accepted: 01/12/2018] [Indexed: 11/17/2022]
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Brodeur MR, Rhainds D, Charpentier D, Mihalache-Avram T, Mecteau M, Brand G, Chaput E, Perez A, Niesor EJ, Rhéaume E, Maugeais C, Tardif JC. Dalcetrapib and anacetrapib differently impact HDL structure and function in rabbits and monkeys. J Lipid Res 2017; 58:1282-1291. [PMID: 28515138 PMCID: PMC5496027 DOI: 10.1194/jlr.m068940] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 05/12/2017] [Indexed: 12/21/2022] Open
Abstract
Inhibition of cholesteryl ester transfer protein (CETP) increases HDL cholesterol (HDL-C) levels. However, the circulating CETP level varies and the impact of its inhibition in species with high CETP levels on HDL structure and function remains poorly characterized. This study investigated the effects of dalcetrapib and anacetrapib, the two CETP inhibitors (CETPis) currently being tested in large clinical outcome trials, on HDL particle subclass distribution and cholesterol efflux capacity of serum in rabbits and monkeys. New Zealand White rabbits and vervet monkeys received dalcetrapib and anacetrapib. In rabbits, CETPis increased HDL-C, raised small and large α-migrating HDL, and increased ABCA1-induced cholesterol efflux. In vervet monkeys, although anacetrapib produced similar results, dalcetrapib caused opposite effects because the LDL-C level was increased by 42% and HDL-C decreased by 48% (P < 0.01). The levels of α- and preβ-HDL were reduced by 16% (P < 0.001) and 69% (P < 0.01), resulting in a decrease of the serum cholesterol efflux capacity. CETPis modulate the plasma levels of mature and small HDL in vivo and consequently the cholesterol efflux capacity. The opposite effects of dalcetrapib in different species indicate that its impact on HDL metabolism could vary greatly according to the metabolic environment.
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Affiliation(s)
| | | | | | | | | | | | | | - Anne Perez
- F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | | | - Eric Rhéaume
- Montreal Heart Institute, Montreal, Quebec, Canada; Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | | | - Jean-Claude Tardif
- Montreal Heart Institute, Montreal, Quebec, Canada; Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada.
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Takubo H, Ishikawa T, Kuhlmann O, Nemoto H, Noguchi T, Nanayama T, Komura H, Kogayu M. Pharmacokinetics and disposition of dalcetrapib in rats and monkeys. Xenobiotica 2014; 44:1117-26. [PMID: 24954481 DOI: 10.3109/00498254.2014.932471] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
1. The pharmacokinetics and metabolism of dalcetrapib (JTT-705/RO4607381), a novel cholesteryl ester transfer protein inhibitor, were investigated in rats and monkeys. 2. In in vitro stability studies, dalcetrapib was extremely unstable in plasma, liver S9 and small intestinal mucosa, and the pharmacologically active form (dalcetrapib thiol) was detected as major component. Most of the active form in plasma was covalently bound to plasma proteins via mixed disulfide bond formation. 3. Following oral administration of (14)C-dalcetrapib to rats and monkeys, active form was detected in plasma. The active form was mainly metabolized to the glucuronide conjugate and the methyl conjugate at the thiol group. Several minor metabolites including mono- and di-oxidized forms of the glucuronide are also detected in the plasma and urine. 4. The administered radioactivity was widely distributed to all tissues and mainly excreted into the feces (85.7 and 62.7% of the dose in rats and monkeys, respectively). Most of the radioactivity was recovered by 168 h. Although the absorbed dalcetrapib was hydrolyzed to the active form and was bound to endogenous thiol via formation of disulfide bond, it was relatively rapidly eliminated from the body and was not retained.
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Affiliation(s)
- Hiroaki Takubo
- Drug Metabolism and Pharmacokinetics Research Laboratories, Central Pharmaceutical Research Institute, Japan Tobacco Inc. , Osaka , Japan
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What are the challenges of stability investigations and sample stabilization in regulated bioanalysis? Bioanalysis 2013; 5:1811-4. [DOI: 10.4155/bio.13.157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Mullangi R, Srinivas NR. Review of the quantitative analysis of cholesteryl ester transfer protein inhibitors. Biomed Chromatogr 2013; 27:1259-72. [DOI: 10.1002/bmc.2907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 02/25/2013] [Indexed: 12/29/2022]
Affiliation(s)
- Ramesh Mullangi
- Jubilant Biosys; Industrial Suburb, 2nd Stage, Yeshwanthpur; Bangalore-560022; India
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Effect of Hepatic and Renal Impairment on the Pharmacokinetics of Dalcetrapib. Clin Pharmacokinet 2013; 52:255-65. [DOI: 10.1007/s40262-013-0035-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Gross G, Tardio J, Kuhlmann O. Solubility and stability of dalcetrapib in vehicles and biological media. Int J Pharm 2012; 437:103-9. [DOI: 10.1016/j.ijpharm.2012.07.071] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 07/30/2012] [Indexed: 10/28/2022]
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