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Rojekar S, Pallapati AR, Gimenez-Roig J, Korkmaz F, Sultana F, Sant D, Haeck CM, Macdonald A, Kim SM, Rosen CJ, Barak O, Meseck M, Caminis J, Lizneva D, Yuen T, Zaidi M. Development and biophysical characterization of a humanized FSH-blocking monoclonal antibody therapeutic formulated at an ultra-high concentration. eLife 2023; 12:e88898. [PMID: 37334968 DOI: 10.7554/elife.88898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/16/2023] [Indexed: 06/21/2023] Open
Abstract
Highly concentrated antibody formulations are oftentimes required for subcutaneous, self-administered biologics. Here, we report the development of a unique formulation for our first-in-class FSH-blocking humanized antibody, MS-Hu6, which we propose to move to the clinic for osteoporosis, obesity, and Alzheimer's disease. The studies were carried out using our Good Laboratory Practice (GLP) platform, compliant with the Code of Federal Regulations (Title 21, Part 58). We first used protein thermal shift, size exclusion chromatography, and dynamic light scattering to examine MS-Hu6 concentrations between 1 and 100 mg/mL. We found that thermal, monomeric, and colloidal stability of formulated MS-Hu6 was maintained at a concentration of 100 mg/mL. The addition of the antioxidant L-methionine and chelating agent disodium EDTA improved the formulation's long-term colloidal and thermal stability. Thermal stability was further confirmed by Nano differential scanning calorimetry (DSC). Physiochemical properties of formulated MS-Hu6, including viscosity, turbidity, and clarity, conformed with acceptable industry standards. That the structural integrity of MS-Hu6 in formulation was maintained was proven through Circular Dichroism (CD) and Fourier Transform Infrared (FTIR) spectroscopy. Three rapid freeze-thaw cycles at -80°C/25°C or -80°C/37°C further revealed excellent thermal and colloidal stability. Furthermore, formulated MS-Hu6, particularly its Fab domain, displayed thermal and monomeric storage stability for more than 90 days at 4°C and 25°C. Finally, the unfolding temperature (Tm) for formulated MS-Hu6 increased by >4.80°C upon binding to recombinant FSH, indicating highly specific ligand binding. Overall, we document the feasibility of developing a stable, manufacturable and transportable MS-Hu6 formulation at a ultra-high concentration at industry standards. The study should become a resource for developing biologic formulations in academic medical centers.
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Affiliation(s)
- Satish Rojekar
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Anusha R Pallapati
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Judit Gimenez-Roig
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Funda Korkmaz
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Farhath Sultana
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Damini Sant
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Clement M Haeck
- Center for Biomedical Research, Population Council, New York, United States
| | - Anne Macdonald
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Se-Min Kim
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Clifford J Rosen
- Center for Clinical and Translational Research, Maine Medical Center Research Institute, Scarborough, United States
| | - Orly Barak
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Marcia Meseck
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - John Caminis
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Daria Lizneva
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Tony Yuen
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
| | - Mone Zaidi
- Center for Translational Medicine and Pharmacology, Icahn School of Medicine at Mount Sinai, New York, United States
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Aragon FFH, Haeck CM, Morais PC, Variano B. Polymorphism characterization of segesterone acetate: A comprehensive study using XRPD, FT-IR and Raman spectroscopy. Int J Pharm 2021; 596:120234. [PMID: 33484926 DOI: 10.1016/j.ijpharm.2021.120234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/27/2020] [Accepted: 12/31/2020] [Indexed: 11/19/2022]
Abstract
Segesterone acetate (SA) is a promising and recently approved drug substance used as a contraceptive. SA has two major polymorphic forms, Form I and II. We have shown through indirect analysis that Form I is the more thermodynamically stable polymorphic form at room temperature, however, during the manufacturing process of SA drug products the solid-state stability must be shown to be under control. In the present work, a systematic study has been done using X-ray powder diffraction (XRPD), Fourier Transformed Infrared spectroscopy (FT-IR), and room temperature Raman spectroscopy on both micronized and non-micronized SA powder samples. XRPD showed a crystalline structure in both powder samples with a distinct coexistence of the polymorphic Forms I and II which was confirmed by FT-IR and Raman spectroscopy. The study showed that after thermal annealing a noticeable reduction of the amount of polymorphic Form II was found in both samples. Our results suggest the possibility of reducing the amount of SA Form II by thermal treatment inducing an irreversible solid-state transition to yield the thermodynamically more stable polymorphic Form I. To quantify the ratio of polymorphs I and II we have implemented a method that can be used as a routine analysis step in the manufacturing process of SA.
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Affiliation(s)
- Fermin F H Aragon
- Center for Biomedical Research, Population Council, New York, NY, USA
| | - Clement M Haeck
- Center for Biomedical Research, Population Council, New York, NY, USA
| | - Paulo C Morais
- Universidade Católica de Brasília, Brasília, DF 70790-160, Brazil; Universidade de Brasília, Instituto de Física, Brasília, DF 70910-900, Brazil
| | - Bruce Variano
- Center for Biomedical Research, Population Council, New York, NY, USA.
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