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Sato M, Toshimoto K, Tomaru A, Yoshikado T, Tanaka Y, Hisaka A, Lee W, Sugiyama Y. Physiologically Based Pharmacokinetic Modeling of Bosentan Identifies the Saturable Hepatic Uptake As a Major Contributor to Its Nonlinear Pharmacokinetics. Drug Metab Dispos 2018; 46:740-748. [PMID: 29475833 DOI: 10.1124/dmd.117.078972] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 02/21/2018] [Indexed: 01/02/2023] Open
Abstract
Bosentan is a substrate of hepatic uptake transporter organic anion-transporting polypeptides (OATPs), and undergoes extensive hepatic metabolism by cytochrome P450 (P450), namely, CYP3A4 and CYP2C9. Several clinical investigations have reported a nonlinear relationship between bosentan doses and its systemic exposure, which likely involves the saturation of OATP-mediated uptake, P450-mediated metabolism, or both in the liver. Yet, the underlying causes for the nonlinear bosentan pharmacokinetics are not fully delineated. To address this, we performed physiologically based pharmacokinetic (PBPK) modeling analyses for bosentan after its intravenous administration at different doses. As a bottom-up approach, PBPK modeling analyses were performed using in vitro kinetic parameters, other relevant parameters, and scaling factors. As top-down approaches, three different types of PBPK models that incorporate the saturation of hepatic uptake, metabolism, or both were compared. The prediction from the bottom-up approach (models 1 and 2) yielded blood bosentan concentration-time profiles and their systemic clearance values that were not in good agreement with the clinically observed data. From top-down approaches (models 3, 4, 5-1, and 5-2), the prediction accuracy was best only with the incorporation of the saturable hepatic uptake for bosentan. Taken together, the PBPK models for bosentan were successfully established, and the comparison of different PBPK models identified the saturation of the hepatic uptake process as a major contributing factor for the nonlinear pharmacokinetics of bosentan.
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Affiliation(s)
- Masanobu Sato
- Advanced Review with Electronic Data Promotion Group, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan (M.S.); Sugiyama Laboratory, RIKEN Innovation Center, Research Cluster for Innovation, RIKEN, Kanagawa, Japan (K.T., A.T., T.Y., Y.S.); DMPK Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., Tochigi, Japan (Y.T); Graduate School and Faculty of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.H.); and College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea (W.L.)
| | - Kota Toshimoto
- Advanced Review with Electronic Data Promotion Group, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan (M.S.); Sugiyama Laboratory, RIKEN Innovation Center, Research Cluster for Innovation, RIKEN, Kanagawa, Japan (K.T., A.T., T.Y., Y.S.); DMPK Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., Tochigi, Japan (Y.T); Graduate School and Faculty of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.H.); and College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea (W.L.)
| | - Atsuko Tomaru
- Advanced Review with Electronic Data Promotion Group, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan (M.S.); Sugiyama Laboratory, RIKEN Innovation Center, Research Cluster for Innovation, RIKEN, Kanagawa, Japan (K.T., A.T., T.Y., Y.S.); DMPK Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., Tochigi, Japan (Y.T); Graduate School and Faculty of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.H.); and College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea (W.L.)
| | - Takashi Yoshikado
- Advanced Review with Electronic Data Promotion Group, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan (M.S.); Sugiyama Laboratory, RIKEN Innovation Center, Research Cluster for Innovation, RIKEN, Kanagawa, Japan (K.T., A.T., T.Y., Y.S.); DMPK Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., Tochigi, Japan (Y.T); Graduate School and Faculty of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.H.); and College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea (W.L.)
| | - Yuta Tanaka
- Advanced Review with Electronic Data Promotion Group, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan (M.S.); Sugiyama Laboratory, RIKEN Innovation Center, Research Cluster for Innovation, RIKEN, Kanagawa, Japan (K.T., A.T., T.Y., Y.S.); DMPK Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., Tochigi, Japan (Y.T); Graduate School and Faculty of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.H.); and College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea (W.L.)
| | - Akihiro Hisaka
- Advanced Review with Electronic Data Promotion Group, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan (M.S.); Sugiyama Laboratory, RIKEN Innovation Center, Research Cluster for Innovation, RIKEN, Kanagawa, Japan (K.T., A.T., T.Y., Y.S.); DMPK Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., Tochigi, Japan (Y.T); Graduate School and Faculty of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.H.); and College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea (W.L.)
| | - Wooin Lee
- Advanced Review with Electronic Data Promotion Group, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan (M.S.); Sugiyama Laboratory, RIKEN Innovation Center, Research Cluster for Innovation, RIKEN, Kanagawa, Japan (K.T., A.T., T.Y., Y.S.); DMPK Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., Tochigi, Japan (Y.T); Graduate School and Faculty of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.H.); and College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea (W.L.)
| | - Yuichi Sugiyama
- Advanced Review with Electronic Data Promotion Group, Pharmaceuticals and Medical Devices Agency, Tokyo, Japan (M.S.); Sugiyama Laboratory, RIKEN Innovation Center, Research Cluster for Innovation, RIKEN, Kanagawa, Japan (K.T., A.T., T.Y., Y.S.); DMPK Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., Tochigi, Japan (Y.T); Graduate School and Faculty of Pharmaceutical Sciences, Chiba University, Chiba, Japan (A.H.); and College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea (W.L.)
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Hariparsad N, Ramsden D, Palamanda J, Dekeyser JG, Fahmi OA, Kenny JR, Einolf H, Mohutsky M, Pardon M, Siu YA, Chen L, Sinz M, Jones B, Walsky R, Dallas S, Balani SK, Zhang G, Buckley D, Tweedie D. Considerations from the IQ Induction Working Group in Response to Drug-Drug Interaction Guidance from Regulatory Agencies: Focus on Downregulation, CYP2C Induction, and CYP2B6 Positive Control. Drug Metab Dispos 2017. [PMID: 28646080 DOI: 10.1124/dmd.116.074567] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The European Medicines Agency (EMA), the Pharmaceutical and Medical Devices Agency (PMDA), and the Food and Drug Administration (FDA) have issued guidelines for the conduct of drug-drug interaction studies. To examine the applicability of these regulatory recommendations specifically for induction, a group of scientists, under the auspices of the Drug Metabolism Leadership Group of the Innovation and Quality (IQ) Consortium, formed the Induction Working Group (IWG). A team of 19 scientists, from 16 of the 39 pharmaceutical companies that are members of the IQ Consortium and two Contract Research Organizations reviewed the recommendations, focusing initially on the current EMA guidelines. Questions were collated from IQ member companies as to which aspects of the guidelines require further evaluation. The EMA was then approached to provide insights into their recommendations on the following: 1) evaluation of downregulation, 2) in vitro assessment of CYP2C induction, 3) the use of CITCO as the positive control for CYP2B6 induction by CAR, 4) data interpretation (a 2-fold increase in mRNA as evidence of induction), and 5) the duration of incubation of hepatocytes with test article. The IWG conducted an anonymous survey among IQ member companies to query current practices, focusing specifically on the aforementioned key points. Responses were received from 19 companies. All data and information were blinded before being shared with the IWG. The results of the survey are presented, together with consensus recommendations on downregulation, CYP2C induction, and CYP2B6 positive control. Results and recommendations related to data interpretation and induction time course will be reported in subsequent articles.
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Affiliation(s)
- Niresh Hariparsad
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Diane Ramsden
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Jairam Palamanda
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Joshua G Dekeyser
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Odette A Fahmi
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Jane R Kenny
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Heidi Einolf
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Michael Mohutsky
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Magalie Pardon
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Y Amy Siu
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Liangfu Chen
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Michael Sinz
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Barry Jones
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Robert Walsky
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Shannon Dallas
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Suresh K Balani
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - George Zhang
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - David Buckley
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
| | - Donald Tweedie
- Vertex Pharmaceuticals, Boston, Massachusetts (N.H.); Genentech, South San Francisco, California (J.R.K.); Novartis Pharmaceuticals, Florham Park, New Jersey (H.E.); Eli Lilly and Company, Indianapolis, Indiana (M.M.); Boehringer Ingelheim, Ridgefield, Connecticut (D.R.); Merck and Co., Kenilworth, New Jersey (J.P.), Amgen Inc., Thousand Oaks, California (J.D.), Pfizer Global Research and Development, Groton, Connecticut (O.A.F.); Sanofi Pharmaceuticals, ChillyMazarin, France (M.P.); Eisai Pharmaceuticals, Andover, Massachusetts (A.Y.S.); Glaxo SmithKline, King of Prussia, Pennsylvania (L.C.); Bristol-Myers Squibb, Wallingford, Connecticut (M.S.); AstraZeneca, Mölndal, Sweden (B.J.); EMD Serono, Billerica, Massachusetts (R.W.);Janssen R&D, Spring House, Pennsylvania (S.D.); Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceuticals Co., Cambridge, Massachusetts (S.K.B.); Corning Life Sciences; Woburn, Massachusetts (G.Z.); XenoTech LLC, Lenexa, Kansas (D.B.); Merck and Co., West Point, Pennsylvania (D.T.)
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