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Rowland S, Nixon E, Mohan K, Wang Q, Yates J. A systematic review of allometric scaling exponents for IgG mAbs. Xenobiotica 2024:1-9. [PMID: 39067010 DOI: 10.1080/00498254.2024.2383925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 07/19/2024] [Accepted: 07/20/2024] [Indexed: 07/30/2024]
Abstract
Increasing complexity of mAbs in development creates challenges in predicting human pharmacokinetic (PK) parameters from preclinical data. The aim of this analysis was to identify optimal allometric scaling exponents.Data were extracted from literature to create a central database (currently the largest available published database) of two-compartment model parameters for mAbs (n = 59) in cynomolgus monkey (CM) and human.Global allometric exponents were calculated and drug-dependent factors were investigated as potential variables in determining the optimal scaling factor.The global exponents for scaling CM mAb PK data were 0.74 (CL), 0.80 (CL with Fc-modified mAbs excluded), 0.44 (CL with Fc-modified mAbs only), 0.71 (Q), 1.12 (V1), and 0.99 (V2). These values are in line with previously published literature values.
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Affiliation(s)
- Simon Rowland
- Medical Director, Haleon, Building 5, First Floor The Heights, Weybridge, England, Surrey, KT13 0NY
| | - Emma Nixon
- PKPD Modelling, GlaxoSmithKline, GSK House 980 Great West Road, Brentford, Middlesex, TW8 9GS, United Kingdom
| | - Krithika Mohan
- PKPD Modelling, GlaxoSmithKline, GSK House 980 Great West Road, Brentford, Middlesex, TW8 9GS, United Kingdom
| | - Qianwen Wang
- PKPD Modelling, GlaxoSmithKline, GSK House 980 Great West Road, Brentford, Middlesex, TW8 9GS, United Kingdom
| | - James Yates
- PKPD Modelling, GlaxoSmithKline, GSK House 980 Great West Road, Brentford, Middlesex, TW8 9GS, United Kingdom
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Tajiri A, Matsumoto S, Maeda S, Soga T, Kagiyama K, Ikeda H, Fukasawa K, Miyata A, Kamimura H. Prediction of human serum concentration-time profiles of therapeutic monoclonal antibodies using common marmosets ( Callithrix jacchus): initial assessment with canakinumab, adalimumab, and bevacizumab. Xenobiotica 2024:1-10. [PMID: 38977390 DOI: 10.1080/00498254.2024.2371921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 07/10/2024]
Abstract
Cynomolgus monkeys and human FcRn transgenic mice are generally used for pharmacokinetic predictions of therapeutic monoclonal antibodies (mAbs). In the present study, the application of the common marmoset, a small nonhuman primate, as a potential animal model for prediction was evaluated for the first time.Canakinumab, adalimumab, and bevacizumab, which exhibited linear pharmacokinetics in humans, were selected as the model compounds. Marmoset pharmacokinetic data were reportedly available only for canakinumab, and those for adalimumab and bevacizumab were acquired in-house.Four pharmacokinetic parameters for a two-compartment model (i.e. clearance and volume of distribution in the central and peripheral compartments) in marmosets were extrapolated to the values in humans with allometric scaling using the average exponents of the three mAbs. As a result, the observed human serum concentration-time curves of the three mAbs following intravenous administration and those of canakinumab and adalimumab following subcutaneous injections (with an assumed absorption rate constant and bioavailability) were reasonably predicted.Although further prediction studies using a sufficient number of other mAbs are necessary to evaluate the versatility of this model, the findings indicate that marmosets can be an alternative to preceding animals for human pharmacokinetic predictions of therapeutic mAbs.
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Affiliation(s)
- Ayaka Tajiri
- Drug Discovery Department, R&D Division, Meiji Seika Pharma Co., Ltd, Tokyo, Japan
| | - Shogo Matsumoto
- Drug Discovery Department, R&D Division, Meiji Seika Pharma Co., Ltd, Tokyo, Japan
| | - Satoshi Maeda
- Yaotsu Breeding Center, CLEA Japan, Inc., Gifu, Japan
| | - Takuma Soga
- Yaotsu Breeding Center, CLEA Japan, Inc., Gifu, Japan
| | | | - Hiroshi Ikeda
- Tokyo Animal and Diet Department, CLEA Japan, Inc., Tokyo, Japan
| | | | - Atsunori Miyata
- Drug Discovery Department, R&D Division, Meiji Seika Pharma Co., Ltd, Tokyo, Japan
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Danto SI, Tsamandouras N, Reddy P, Gilbert S, Mancuso J, Page K, Peeva E, Vincent MS, Beebe JS. Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of PF-06817024 in Healthy Participants, Participants with Chronic Rhinosinusitis with Nasal Polyps, and Participants with Atopic Dermatitis: A Phase 1, Randomized, Double-Blind, Placebo-Controlled Study. J Clin Pharmacol 2024; 64:529-543. [PMID: 37772436 DOI: 10.1002/jcph.2360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 09/05/2023] [Indexed: 09/30/2023]
Abstract
PF-06817024 is a high affinity, humanized antibody that binds interleukin-33, a proinflammatory type 2 cytokine, and thereby has the potential to inhibit downstream type 2 inflammation. This Phase 1, randomized, placebo-controlled study was conducted in 3 parts to evaluate the safety, tolerability, pharmacokinetics (PK), immunogenicity, and pharmacodynamics of escalating single and limited repeat PF-06817024 doses in healthy participants (Part 1), a single dose of PF-06817024 in participants with chronic rhinosinusitis with nasal polyps (Part 2), and repeat doses of PF-06817024 in participants with moderate to severe atopic dermatitis (atoptic dermatitis; Part 3). PF-06817024 was generally well tolerated in all participant populations. Most participants experienced a treatment-emergent adverse event (healthy participants, 78.4% and 100%; participants with chronic rhinosinusitis with nasal polyps, 90.9% and 88.9%; and participants with atoptic dermatitis, 60.0% and 62.5% in the PF-06817024 and placebo groups, respectively). No substantial deviations from dose proportionality were observed for single intravenous doses of 10-1000 mg, indicating linear PK in healthy participants. Mean terminal half-life ranged from 83 to 94 days after single intravenous administration in healthy participants and was similar to that observed after administration in the studied patient populations. Incidences of antidrug antibodies in the studied populations were 10.8%, 9.1%, and 5.0% for healthy participants, participants with chronic rhinosinusitis with nasal polyps, and participants with atoptic dermatitis, respectively. In addition, dose-dependent increases were observed in total serum interleukin-33 levels of treated participants, indicating target engagement. Overall, the PK and safety profile of PF-06817024 supports further investigation of the drug as a potential treatment for allergic diseases.
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Teranishi-Ikawa Y, Soeda T, Koga H, Yamaguchi K, Kato K, Esaki K, Asanuma K, Funaki M, Ichiki M, Ikuta Y, Ito S, Joyashiki E, Komatsu SI, Muto A, Nishimura K, Okuda M, Sanada H, Sato M, Shibahara N, Wakabayashi T, Yamaguchi K, Matsusaki A, Sampei Z, Shiraiwa H, Konishi H, Kawabe Y, Hattori K, Kitazawa T, Igawa T. A bispecific antibody NXT007 exerts a hemostatic activity in hemophilia A monkeys enough to keep a nonhemophilic state. J Thromb Haemost 2024; 22:430-440. [PMID: 37940048 DOI: 10.1016/j.jtha.2023.09.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/09/2023] [Accepted: 09/25/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Emicizumab, a factor (F) VIIIa-function mimetic bispecific antibody (BsAb) to FIXa and FX, has become an indispensable treatment option for people with hemophilia A (PwHA). However, a small proportion of PwHA still experience bleeds even under emicizumab prophylaxis, as observed in the long-term outcomes of clinical studies. A more potent BsAb may be desirable for such patients. OBJECTIVES To identify a potent BsAb to FIXa and FX, NXT007, surpassing emicizumab by in vitro and in vivo evaluation. METHODS New pairs of light chains for emicizumab's heavy chains were screened from phage libraries, and subsequent antibody optimization was performed. For in vitro evaluation, thrombin generation assays were performed with hemophilia A plasma. In vivo hemostatic activity was evaluated in a nonhuman primate model of acquired hemophilia A. RESULTS NXT007 exhibited an in vitro thrombin generation activity comparable to the international standard activity of FVIII (100 IU/dL), much higher than emicizumab, when triggered by tissue factor. NXT007 also demonstrated a potent in vivo hemostatic activity at approximately 30-fold lower plasma concentrations than emicizumab's historical data. In terms of dose shift between NXT007 and emicizumab, the in vitro and in vivo results were concordant. Regarding pharmacokinetics, NXT007 showed lower in vivo clearance than those shown by typical monoclonal antibodies, suggesting that the Fc engineering to enhance FcRn binding worked well. CONCLUSION NXT007, a potent BsAb, was successfully created. Nonclinical results suggest that NXT007 would have a potential to keep a nonhemophilic range of coagulation potential in PwHA or to realize more convenient dosing regimens than emicizumab.
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Affiliation(s)
| | - Tetsuhiro Soeda
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Hikaru Koga
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan.
| | - Kazuki Yamaguchi
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Kazuki Kato
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Keiko Esaki
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Kentaro Asanuma
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Miho Funaki
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Mina Ichiki
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Yuri Ikuta
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Shunsuke Ito
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Eri Joyashiki
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | | | - Atsushi Muto
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Kei Nishimura
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Momoko Okuda
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Hisakazu Sanada
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Motohiko Sato
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Norihito Shibahara
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | | | - Koji Yamaguchi
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Akiko Matsusaki
- Translational Research Division, Chugai Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Zenjiro Sampei
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Hirotake Shiraiwa
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Hiroko Konishi
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Yoshiki Kawabe
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Kunihiro Hattori
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Takehisa Kitazawa
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan
| | - Tomoyuki Igawa
- Research Division, Chugai Pharmaceutical Co, Ltd, Yokohama, Kanagawa, Japan; Translational Research Division, Chugai Pharmaceutical Co., Ltd., Tokyo, Japan
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