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Yugatama A, Huang YL, Hsu MJ, Lin JP, Chao FC, Lam JKW, Hsieh CM. Oral Delivery of Photopolymerizable Nanogels Loaded with Gemcitabine for Pancreatic Cancer Therapy: Formulation Design, and in vitro and in vivo Evaluations. Int J Nanomedicine 2024; 19:3753-3772. [PMID: 38686338 PMCID: PMC11057685 DOI: 10.2147/ijn.s443610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 04/19/2024] [Indexed: 05/02/2024] Open
Abstract
Background Gemcitabine (GEM) faces challenges of poor oral bioavailability and extensive first-pass metabolism. Currently, only injectable formulations are available for clinical use. Hence, there is an urgent demand for the development of advanced, efficacious, and user-friendly dosage forms to maintain its status as the primary treatment for pancreatic ductal adenocarcinoma (PDAC). Nanogels (NGs) offer a novel oral drug delivery system, ideal for hydrophilic compounds like GEM. This study aims to develop NGs tailored for GEM delivery, with the goal of enhancing cellular uptake and gastrointestinal permeability for improved administration in PDAC patients. Methods We developed cross-linked NGs via photopolymerization of methacryloyl for drug delivery of GEM. We reveal characterization, cytotoxicity, and cellular uptake studies in Caco-2 and MIA PaCa-2 cells. In addition, studies of in vitro permeability and pharmacokinetics were carried out to evaluate the bioavailability of the drug. Results Our results show NGs, formed via photopolymerization of methacryloyl, had a spherical shape with a size of 233.91±7.75 nm. Gemcitabine-loaded NGs (NGs-GEM) with 5% GelMA exhibited efficient drug loading (particle size: 244.07±19.52 nm). In vitro drug release from NGs-GEM was slower at pH 1.2 than pH 6.8. Cellular uptake studies indicated significantly enhanced uptake in both MIA PaCa-2 and Caco-2 cells. While there was no significant difference in GEM's AUC and Cmax between NGs-GEM and free-GEM groups, NGs-GEM showed markedly lower dFdU content (10.07 hr∙μg/mL) compared to oral free-GEM (19.04 hr∙μg/mL) after oral administration (p<0.01), highlighting NGs' efficacy in impeding rapid drug metabolism and enhancing retention. Conclusion In summary, NGs enhance cellular uptake, inhibit rapid metabolic degradation of GEM, and prolong retention after oral administration. These findings suggest NGs-GEM as a promising candidate for clinical use in oral pancreatic cancer therapy.
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Affiliation(s)
- Adi Yugatama
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
- Department of Pharmacy, Sebelas Maret University, Surakarta, 57126, Indonesia
| | - Ya-Lin Huang
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
| | - Ming-Jen Hsu
- Department of Pharmacology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Jia-Pei Lin
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
| | - Fang-Ching Chao
- CNRS UMR 8612, Institut Galien Paris-Saclay, Université Paris-Saclay, Orsay, 91400, France
| | - Jenny K W Lam
- Department of Pharmaceutics, School of Pharmacy, University College, London, WC1N 1AX, UK
| | - Chien-Ming Hsieh
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
- Department of Pharmaceutics, School of Pharmacy, University College, London, WC1N 1AX, UK
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
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Barr HK, Guggenbickler AM, Hoch JS, Dewa CS. Real-World Cost-Effectiveness Analysis: How Much Uncertainty Is in the Results? Curr Oncol 2023; 30:4078-4093. [PMID: 37185423 PMCID: PMC10136635 DOI: 10.3390/curroncol30040310] [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: 02/04/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 05/17/2023] Open
Abstract
Cost-effectiveness analyses of new cancer treatments in real-world settings (e.g., post-clinical trials) inform healthcare decision makers about their healthcare investments for patient populations. The results of these analyses are often, though not always, presented with statistical uncertainty. This paper identifies five ways to characterize statistical uncertainty: (1) a 95% confidence interval (CI) for the incremental cost-effectiveness ratio (ICER); (2) a 95% CI for the incremental net benefit (INB); (3) an INB by willingness-to-pay (WTP) plot; (4) a cost-effectiveness acceptability curve (CEAC); and (5) a cost-effectiveness scatterplot. It also explores their usage in 22 articles previously identified by a rapid review of real-world cost effectiveness of novel cancer treatments. Seventy-seven percent of these articles presented uncertainty results. The majority those papers (59%) used administrative data to inform their analyses while the remaining were conducted using models. Cost-effectiveness scatterplots were the most commonly used method (34.3%), with 40% indicating high levels of statistical uncertainty, suggesting the possibility of a qualitatively different result from the estimate given. Understanding the necessity for and the meaning of uncertainty in real-world cost-effectiveness analysis will strengthen knowledge translation efforts to improve patient outcomes in an efficient manner.
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Affiliation(s)
- Heather K Barr
- Graduate Group in Public Health Sciences, Department of Public Health Sciences, University of California, Davis, CA 95616, USA
| | - Andrea M Guggenbickler
- Graduate Group in Public Health Sciences, Department of Public Health Sciences, University of California, Davis, CA 95616, USA
| | - Jeffrey S Hoch
- Graduate Group in Public Health Sciences, Department of Public Health Sciences, University of California, Davis, CA 95616, USA
- Division of Health Policy and Management, Department of Public Health Sciences, University of California, Davis, CA 95616, USA
- Center for Healthcare Policy and Research, University of California, Davis, CA 95616, USA
| | - Carolyn S Dewa
- Graduate Group in Public Health Sciences, Department of Public Health Sciences, University of California, Davis, CA 95616, USA
- Department of Psychiatry and Behavioral Sciences, University of California, Sacramento, CA 95817, USA
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Cipora E, Partyka O, Pajewska M, Czerw A, Sygit K, Sygit M, Kaczmarski M, Mękal D, Krzych-Fałta E, Jurczak A, Karakiewicz-Krawczyk K, Wieder-Huszla S, Banaś T, Bandurska E, Ciećko W, Deptała A. Treatment Costs and Social Burden of Pancreatic Cancer. Cancers (Basel) 2023; 15:cancers15061911. [PMID: 36980796 PMCID: PMC10047484 DOI: 10.3390/cancers15061911] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
(1) Background: Pancreatic cancer is the cancer with the third-highest mortality rate, and forecasts indicate its growing share in morbidity. The basis of treatment is inpatient chemotherapy and there is a strong focus on palliative care. (2) Methods: A literature review was conducted based on the rapid review methodology in PubMed and Cochrane databases. The search was supplemented with publications from the snowball search. Qualitative assessment of included publications was performed using AMSTAR2 modified scheme. (3) Results: The review included 17 publications, of which majority concerned direct costs related to the adopted treatment regimen. Most of the publications focused on comparing the cost-effectiveness of drug therapies and the costs of palliative treatment. Other publications concerned indirect costs generated by pancreatic cancer. They particularly focused on the economic burden of lost productivity due to sickness absence. (4) Conclusion: The increase in the incidence of pancreatic cancer translates into an increase in the costs of the health care system and indirect costs. Due to the significant share of hospitalization in the health care structure, direct costs are increasing. The inpatient treatment regimen and side effects translate into a loss of productivity for patients with pancreatic cancer. Among gastrointestinal cancers, pancreatic cancer generates the second largest indirect costs, although it has a much lower incidence rate than the dominant colorectal cancer. This indicates a significant problem of the economic burden of this cancer.
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Affiliation(s)
- Elżbieta Cipora
- Medical Institute, Jan Grodek State University in Sanok, 38-500 Sanok, Poland
| | - Olga Partyka
- Department of Economic and System Analyses, National Institute of Public Health NIH-National Research Institute, 00-791 Warsaw, Poland
- Department of Health Economics and Medical Law, Medical University of Warsaw, 01-445 Warsaw, Poland
| | - Monika Pajewska
- Department of Economic and System Analyses, National Institute of Public Health NIH-National Research Institute, 00-791 Warsaw, Poland
| | - Aleksandra Czerw
- Department of Economic and System Analyses, National Institute of Public Health NIH-National Research Institute, 00-791 Warsaw, Poland
- Department of Health Economics and Medical Law, Medical University of Warsaw, 01-445 Warsaw, Poland
| | - Katarzyna Sygit
- Faculty of Health Sciences, Calisia University, 62-800 Kalisz, Poland
| | - Marian Sygit
- Faculty of Health Sciences, Calisia University, 62-800 Kalisz, Poland
| | - Mateusz Kaczmarski
- Medical Institute, Jan Grodek State University in Sanok, 38-500 Sanok, Poland
| | - Dominika Mękal
- Department of Oncology Propaedeutics, Medical University of Warsaw, 01-445 Warsaw, Poland
| | - Edyta Krzych-Fałta
- Department of Basic of Nursing, Faculty of Health Sciences, Medical University of Warsaw, 01-445 Warsaw, Poland
| | - Anna Jurczak
- Department of Clinical Nursing, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland
| | | | - Sylwia Wieder-Huszla
- Department of Clinical Nursing, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland
| | - Tomasz Banaś
- Department of Radiotherapy, Maria Sklodowska-Curie Institute-Oncology Centre, 31-115 Cracow, Poland
| | - Ewa Bandurska
- Center for Competence Development, Integrated Care and e-Health, Medical University of Gdansk, 80-204 Gdansk, Poland
| | - Weronika Ciećko
- Center for Competence Development, Integrated Care and e-Health, Medical University of Gdansk, 80-204 Gdansk, Poland
| | - Andrzej Deptała
- Department of Oncology Propaedeutics, Medical University of Warsaw, 01-445 Warsaw, Poland
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Tanaka HY, Nakazawa T, Enomoto A, Masamune A, Kano MR. Therapeutic Strategies to Overcome Fibrotic Barriers to Nanomedicine in the Pancreatic Tumor Microenvironment. Cancers (Basel) 2023; 15:cancers15030724. [PMID: 36765684 PMCID: PMC9913712 DOI: 10.3390/cancers15030724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/19/2023] [Accepted: 01/21/2023] [Indexed: 01/26/2023] Open
Abstract
Pancreatic cancer is notorious for its dismal prognosis. The enhanced permeability and retention (EPR) effect theory posits that nanomedicines (therapeutics in the size range of approximately 10-200 nm) selectively accumulate in tumors. Nanomedicine has thus been suggested to be the "magic bullet"-both effective and safe-to treat pancreatic cancer. However, the densely fibrotic tumor microenvironment of pancreatic cancer impedes nanomedicine delivery. The EPR effect is thus insufficient to achieve a significant therapeutic effect. Intratumoral fibrosis is chiefly driven by aberrantly activated fibroblasts and the extracellular matrix (ECM) components secreted. Fibroblast and ECM abnormalities offer various potential targets for therapeutic intervention. In this review, we detail the diverse strategies being tested to overcome the fibrotic barriers to nanomedicine in pancreatic cancer. Strategies that target the fibrotic tissue/process are discussed first, which are followed by strategies to optimize nanomedicine design. We provide an overview of how a deeper understanding, increasingly at single-cell resolution, of fibroblast biology is revealing the complex role of the fibrotic stroma in pancreatic cancer pathogenesis and consider the therapeutic implications. Finally, we discuss critical gaps in our understanding and how we might better formulate strategies to successfully overcome the fibrotic barriers in pancreatic cancer.
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Affiliation(s)
- Hiroyoshi Y. Tanaka
- Department of Pharmaceutical Biomedicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama-shi 700-8530, Okayama, Japan
| | - Takuya Nakazawa
- Department of Pharmaceutical Biomedicine, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama-shi 700-8530, Okayama, Japan
| | - Atsushi Enomoto
- Department of Pathology, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya-shi 466-8550, Aichi, Japan
| | - Atsushi Masamune
- Division of Gastroenterology, Graduate School of Medicine, Tohoku University, 1-1 Seiryo-machi, Aoba-ku, Sendai-shi 980-8574, Miyagi, Japan
| | - Mitsunobu R. Kano
- Department of Pharmaceutical Biomedicine, Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama-shi 700-8530, Okayama, Japan
- Correspondence:
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Guggenbickler AM, Barr HK, Hoch JS, Dewa CS. Rapid Review of Real-World Cost-Effectiveness Analyses of Cancer Interventions in Canada. Curr Oncol 2022; 29:7285-7304. [PMID: 36290851 PMCID: PMC9600856 DOI: 10.3390/curroncol29100574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 11/05/2022] Open
Abstract
Cost-effectiveness analysis (CE Analysis) provides evidence about the incremental gains in patient outcomes costs from new treatments and interventions in cancer care. The utilization of "real-world" data allows these analyses to better reflect differences in costs and effects for actual patient populations with comorbidities and a range of ages as opposed to randomized controlled trials, which use a restricted population. This rapid review was done through PubMed and Google Scholar in July 2022. Relevant articles were summarized and data extracted to summarize changes in costs (in 2022 CAD) and effectiveness in cancer care once funded by the Canadian government payer system. We conducted statistical analyses to examine the differences between means and medians of costs, effects, and incremental cost effectiveness ratios (ICERs). Twenty-two studies were selected for review. Of those, the majority performed a CE Analysis on cancer drugs. Real-world cancer drug studies had significantly higher costs and effects than non-drug therapies. Studies that utilized a model to project longer time-horizons saw significantly smaller ICER values for the treatments they examined. Further, differences in drug costs increased over time. This review highlights the importance of performing real-world CE Analysis on cancer treatments to better understand their costs and impacts on a general patient population.
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Affiliation(s)
- Andrea M. Guggenbickler
- Graduate Group in Public Health Sciences, Department of Public Health Sciences, University of California, Davis, CA 95616, USA
| | - Heather K. Barr
- Graduate Group in Public Health Sciences, Department of Public Health Sciences, University of California, Davis, CA 95616, USA
| | - Jeffrey S. Hoch
- Division of Health Policy and Management, Department of Public Health Sciences, University of California, Davis, CA 95616, USA
- Center for Healthcare Policy and Research, University of California, Davis, CA 95820, USA
- Correspondence:
| | - Carolyn S. Dewa
- Department of Psychiatry and Behavioral Sciences, University of California, Davis, CA 95817, USA
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