1
|
Romański M, Staniszewska M, Dobosz J, Myslitska D, Paszkowska J, Kołodziej B, Romanova S, Banach G, Garbacz G, Sarcevica I, Huh Y, Purohit V, McAllister M, Wong SM, Danielak D. More Than a Gut Feeling─A Combination of Physiologically Driven Dissolution and Pharmacokinetic Modeling as a Tool for Understanding Human Gastric Motility. Mol Pharm 2024. [PMID: 38958668 DOI: 10.1021/acs.molpharmaceut.4c00117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
In vivo studies of formulation performance with in vitro and/or in silico simulations are often limited by significant gaps in our knowledge of the interaction between administered dosage forms and the human gastrointestinal tract. This work presents a novel approach for the investigation of gastric motility influence on dosage form performance, by combining biopredictive dissolution tests in an innovative PhysioCell apparatus with mechanistic physiology-based pharmacokinetic modeling. The methodology was based on the pharmacokinetic data from a large (n = 118) cohort of healthy volunteers who ingested a capsule containing a highly soluble and rapidly absorbed drug under fasted conditions. The developed dissolution tests included biorelevant media, varied fluid flows, and mechanical stress events of physiological timing and intensity. The dissolution results were used as inputs for pharmacokinetic modeling that led to the deduction of five patterns of gastric motility and their prevalence in the studied population. As these patterns significantly influenced the observed pharmacokinetic profiles, the proposed methodology is potentially useful to other in vitro-in vivo predictions involving immediate-release oral dosage forms.
Collapse
Affiliation(s)
- Michał Romański
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 3 Rokietnicka St., 60-806 Poznań, Poland
| | | | - Justyna Dobosz
- Physiolution Polska, 74 Piłsudskiego St., 50-020 Wrocław, Poland
| | - Daria Myslitska
- Physiolution Polska, 74 Piłsudskiego St., 50-020 Wrocław, Poland
| | | | | | | | - Grzegorz Banach
- Physiolution Polska, 74 Piłsudskiego St., 50-020 Wrocław, Poland
| | - Grzegorz Garbacz
- Physiolution Polska, 74 Piłsudskiego St., 50-020 Wrocław, Poland
| | - Inese Sarcevica
- Worldwide Research and Development, Pfizer R&D UK Ltd., Sandwich, CT13 9NJ, U.K
| | - Yeamin Huh
- Worldwide Research and Development, Pfizer Inc., Groton, Connecticut 06340, United States
| | - Vivek Purohit
- Worldwide Research and Development, Pfizer Inc., Groton, Connecticut 06340, United States
| | - Mark McAllister
- Worldwide Research and Development, Pfizer R&D UK Ltd., Sandwich, CT13 9NJ, U.K
| | - Suet M Wong
- Worldwide Research and Development, Pfizer R&D UK Ltd., Sandwich, CT13 9NJ, U.K
| | - Dorota Danielak
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 3 Rokietnicka St., 60-806 Poznań, Poland
| |
Collapse
|
2
|
Saadeddin A, Purohit V, Huh Y, Wong M, Maulny A, Dowty ME, Sagawa K. Virtual Bioequivalence Assessment of Ritlecitinib Capsules with Incorporation of Observed Clinical Variability Using a Physiologically Based Pharmacokinetic Model. AAPS J 2024; 26:17. [PMID: 38267790 DOI: 10.1208/s12248-024-00888-9] [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: 10/18/2023] [Accepted: 12/20/2023] [Indexed: 01/26/2024] Open
Abstract
Ritlecitinib, an orally available Janus kinase 3 and tyrosine kinase inhibitor being developed for the treatment of alopecia areata (AA), is highly soluble across the physiological pH range at the therapeutic dose. As such, it is expected to dissolve rapidly in any in vitro dissolution conditions. However, in vitro dissolution data showed slower dissolution for 100-mg capsules, used for the clinical bioequivalence (BE) study, compared with proposed commercial 50-mg capsules. Hence, a biowaiver for the lower 50-mg strength using comparable multimedia dissolution based on the f2 similarity factor was not possible. The in vivo relevance of this observed in vitro dissolution profile was evaluated with a physiologically based pharmacokinetic (PBPK) model. This report describes the development, verification, and application of the ritlecitinib PBPK model to translate observed in vitro dissolution data to an in vivo PK profile for ritlecitinib capsule formulations. Virtual BE (VBE) trials were conducted using the Simcyp VBE module, including the model-predicted within-subject variability or intra-subject coefficient of variation (ICV). The results showed the predicted ICV was predicted to be smaller than observed clinical ICV, resulting in a more optimistic BE risk assessment. Additional VBE assessment was conducted by incorporating clinically observed ICV. The VBE trial results including clinically observed ICV demonstrated that proposed commercial 50-mg capsules vs clinical 100-mg capsules were bioequivalent, with > 90% probability of success. This study demonstrates a PBPK model-based biowaiver for a clinical BE study while introducing a novel method to integrate clinically observed ICV into VBE trials with PBPK models. Trial registration: NCT02309827, NCT02684760, NCT04004663, NCT04390776, NCT05040295, NCT05128058.
Collapse
Affiliation(s)
- Anas Saadeddin
- Pharmaceutical Science, Pfizer Worldwide Research and Development, Madrid, Spain
| | - Vivek Purohit
- Translational Clinical Science, Pfizer Worldwide Research and Development, Groton, Connecticut, USA
| | - Yeamin Huh
- Translational Clinical Science, Pfizer Worldwide Research and Development, Groton, Connecticut, USA
| | - Mei Wong
- Pharmaceutical Science, Pfizer Worldwide Research and Development, Sandwich, UK
| | - Aurelia Maulny
- Pharmaceutical Science, Pfizer Worldwide Research and Development, Sandwich, UK
| | - Martin E Dowty
- Pharmacokinetics, Dynamics and Metabolism, Pfizer Worldwide Research and Development, Cambridge, Massachusetts, USA
| | - Kazuko Sagawa
- Pharmaceutical Science, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, CT, 06340, USA.
| |
Collapse
|
3
|
Abstract
Ritlecitinib (LITFULO™), an orally administered kinase inhibitor, is being developed by Pfizer for the treatment of alopecia areata, vitiligo, ulcerative colitis and Crohn's disease. On 23 June 2023, ritlecitinib received approval in the USA for the treatment of severe alopecia areata in adults and adolescents 12 years and older. Ritlecitinib was approved in Japan on 26 June 2023 for the treatment of alopecia areata (limited to intractable cases involving widespread hair loss). Ritlecitinib has also received a positive opinion in the EU and is under regulatory review in the UK and China. This article summarizes the milestones in the development of ritlecitinib leading to this first approval for severe alopecia areata.
Collapse
Affiliation(s)
- Hannah A Blair
- Springer Nature, Mairangi Bay, Private Bag 65901, Auckland, 0754, New Zealand.
| |
Collapse
|