1
|
Mandlekar S, Sutaria DS, Yang X, Johnson R, Zou Y, Dean B, Chen L, Sane R, Williams K, Cardenas A, Simon M, Fischer S. Evaluation of Patient-Centric Sample Collection Technologies for Pharmacokinetic Assessment of Large and Small Molecules. Clin Pharmacol Ther 2024. [PMID: 38671563 DOI: 10.1002/cpt.3272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 03/31/2024] [Indexed: 04/28/2024]
Abstract
Low-volume sampling devices offer the promise of lower discomfort and greater convenience for patients, potentially reducing patient burden and enabling decentralized clinical trials. In this study, we determined whether low-volume sampling devices produce pharmacokinetic (PK) data comparable to conventional venipuncture for a diverse set of monoclonal antibodies (mAbs) and small molecules. We adopted an open-label, non-randomized, parallel-group, single-site study design, with four cohorts of 10 healthy subjects per arm. The study drugs, doses, and routes of administration included: crenezumab (15 mg/kg, intravenous infusion), etrolizumab (210 mg, subcutaneous), GDC-X (oral), and hydroxychloroquine (HCQ, 200 mg, oral). Samples were collected after administration of a single dose of each drug using conventional venipuncture and three low-volume capillary devices: TassoOne Plus for liquid blood, Tasso-M20 for dry blood, both applied to the arm, and Neoteryx Mitra® for dry blood obtained from fingertips. Serum/plasma concentrations from venipuncture and TassoOne Plus samples overlapped and PK parameters were comparable for all drugs, except HCQ. After applying a baseline hematocrit value, the dry blood concentrations and PK parameters for the two monoclonal antibodies were comparable to those obtained from venipuncture. For the two small molecules, two bridging strategies were evaluated for converting dry blood concentrations to equivalent plasma concentrations. A baseline hematocrit correction and/or linear regression-based correction was effective for GDC-X, but not for HCQ. Additionally, the study evaluated the bioanalytical data quality and comparability from the various collection methods, as well as patient preference for the devices.
Collapse
Affiliation(s)
| | | | - Xiaoyun Yang
- Genentech, Inc., South San Francisco, California, USA
| | - Ryan Johnson
- Genentech, Inc., South San Francisco, California, USA
| | - Yixuan Zou
- Genentech, Inc., South San Francisco, California, USA
| | - Brian Dean
- Genentech, Inc., South San Francisco, California, USA
| | - Liuxi Chen
- Genentech, Inc., South San Francisco, California, USA
| | - Rucha Sane
- Genentech, Inc., South San Francisco, California, USA
| | | | | | - Mary Simon
- Genentech, Inc., South San Francisco, California, USA
| | | |
Collapse
|
2
|
Lin Y, Wang X, Lenz L, Ndiaye O, Qin J, Wang X, Huang H, Jeuland MA, Zhang J. Dried Blood Spot Biomarkers of Oxidative Stress and Inflammation Associated with Blood Pressure in Rural Senegalese Women with Incident Hypertension. Antioxidants (Basel) 2021; 10:antiox10122026. [PMID: 34943129 PMCID: PMC8698702 DOI: 10.3390/antiox10122026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/16/2021] [Accepted: 12/16/2021] [Indexed: 12/12/2022] Open
Abstract
Blood biomarkers of oxidative stress and inflammation have been associated with increased risk of hypertension development; yet their application in sub-Saharan Africa has been limited due to the lack of blood collection facilities. In this study, we evaluated the usefulness of dried blood spots (DBS), a more feasible alternative to venous blood, in rural sub-Saharan residents. We recruited 342 women with incident hypertension from rural Senegal, and measured C-reactive protein (CRP) and malondialdehyde (MDA) in DBS and concurrent blood pressure (BP) at baseline and 1-year follow-up. Associations of DBS biomarkers with current levels of and 1-year changes in BP were examined after adjusting for demographic, medical, and socioeconomic covariates. DBS concentrations of MDA were significantly associated with concurrent systolic BP (SBP) (p < 0.05), while DBS baseline concentrations of CRP were associated with longitudinal changes in SBP between baseline and follow-up. Compared to participants with baseline CRP < 1 mg/L, those with CRP of 1–3 mg/L and 3–10 mg/L had 2.11 mmHg (95%CI: −2.79 to 7.02 mmHg) and 4.68 mmHg (95%CI: 0.01 to 9.36 mmHg) increases in SBP at follow-up, respectively. The results support the use of DBS biomarkers for hypertension prevention and control, especially in settings with limited clinical resources.
Collapse
Affiliation(s)
- Yan Lin
- Nicholas School of the Environment & Duke Global Health Institute, Duke University, Durham, NC 27705, USA; (Y.L.); (X.W.); (J.Q.); (X.W.); (H.H.)
| | - Xiangtian Wang
- Nicholas School of the Environment & Duke Global Health Institute, Duke University, Durham, NC 27705, USA; (Y.L.); (X.W.); (J.Q.); (X.W.); (H.H.)
| | - Luciane Lenz
- RWI Leibniz Institute for Economic Research, 10115 Berlin, Germany; (L.L.); (M.A.J.)
| | - Ousmane Ndiaye
- Centre de Recherche pour le Développement Economique et Social (CRDES), Université Gaston-Berger, Saint-Louis, P.O. Box 234, Senegal;
| | - Jian Qin
- Nicholas School of the Environment & Duke Global Health Institute, Duke University, Durham, NC 27705, USA; (Y.L.); (X.W.); (J.Q.); (X.W.); (H.H.)
- School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Xiaoli Wang
- Nicholas School of the Environment & Duke Global Health Institute, Duke University, Durham, NC 27705, USA; (Y.L.); (X.W.); (J.Q.); (X.W.); (H.H.)
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300387, China
| | - Hui Huang
- Nicholas School of the Environment & Duke Global Health Institute, Duke University, Durham, NC 27705, USA; (Y.L.); (X.W.); (J.Q.); (X.W.); (H.H.)
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Marc A. Jeuland
- RWI Leibniz Institute for Economic Research, 10115 Berlin, Germany; (L.L.); (M.A.J.)
- Sanford School of Public Policy and Duke Global Health Institute, Duke University, Durham, NC 27705, USA
| | - Junfeng Zhang
- Nicholas School of the Environment & Duke Global Health Institute, Duke University, Durham, NC 27705, USA; (Y.L.); (X.W.); (J.Q.); (X.W.); (H.H.)
- Correspondence:
| |
Collapse
|