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Evaluation of Subetadex-α-methyl, a Polyanionic Cyclodextrin Scaffold, as a Medical Countermeasure against Fentanyl and Related Opioids.
ACS Cent Sci
December 2024
Physical and Life Sciences Directorate, Biosciences and Biotechnology Division, Global Security Directorate, Forensic Science Center, and Materials Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States.
Subetadex-α-methyl (SBX-Me), a modified, polyanionic cyclodextrin scaffold, has been evaluated for its utilization as a medical countermeasure (MCM) to neutralize the effects of fentanyl and related opioids. Initial toxicity assays demonstrate that SBX-Me has a nontoxic profile, comparable to the FDA-approved cyclodextrin-based drug Sugammadex. Pharmacokinetic analysis showed rapid clearance of SBX-Me with an elimination half-life of ∼7.
View Article and Find Full Text PDFOpioid-induced respiratory depression: clinical aspects and pathophysiology of the respiratory network effects.
Am J Physiol Lung Cell Mol Physiol
December 2024
The author is retired. The positions and affiliations are those prior to his retirement.
Important insights and consensus remain lacking for risk prediction of opioid-induced respiratory depression (OIRD), reversal of respiratory depression (RD), the pathophysiology of OIRD, and which sites make the most significant contribution to its induction. The ventilatory response to inhaled carbon dioxide is the most sensitive biomarker of OIRD. To accurately predict respiratory depression (RD), a multivariant RD prospective trial using continuous capnograph and oximetry examining 5 independent variables: age ≥60, sex, opioid naivety, sleep disorders, and chronic heart failure (PRODIGY trial), was undertaken.
View Article and Find Full Text PDFPharmacokinetics of cisplatin in the systemic versus hyperthermic intrathoracic or intraperitoneal chemotherapy.
Cancer Chemother Pharmacol
December 2024
Department of Oncology, Tangdu Hospital, The Air Force Medical University, No.569 Xinsi Road, Xi'an, Shaanxi Province, 710038, China.
Objective: To compare the pharmacokinetics and adverse effects of cisplatin administered via intravenous infusion for systemic chemotherapy (SC) versus injection into the perfusate during hyperthermic intrathoracic chemotherapy (HITHOC) or hyperthermic intraperitoneal chemotherapy (HIPEC).
Methods: Total 60 patients who received SC, HITHOC, or HIPEC in the Department of Oncology, Tangdu Hospital, were enrolled into this study. After administering same dose of cisplatin (40 mg) via either intravenous infusion (SC group) or injection into the perfusate during the HITHOC or HIPEC procedure, concentration of cisplatin in the plasma as well as in the hyperthermic perfusate at various time points was quantified by HPLC analysis.
Encapsulation of anti-VEGF nanobody into niosome nanoparticles: a novel approach to enhance circulation half life and efficacy.
J Microencapsul
December 2024
Venom and Biotherapeutics Molecules Laboratory, Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
This study aimed to encapsulate an anti-VEGF nanobody (Nb) within niosome nanoparticles (NNPs) to enhance its circulation half life. Key parameters such as encapsulation efficiency, stability, Nb release, cytotoxicity, and cell migration inhibition in HUVEC cells were evaluated, along with pharmacokinetic studies in mice. Nb-loaded NNPs (Nb-NNPs) were successfully prepared with an encapsulation efficiency of 78.
View Article and Find Full Text PDFPopulation Pharmacokinetics of Epcoritamab Following Subcutaneous Administration in Relapsed or Refractory B Cell Non-Hodgkin Lymphoma.
Clin Pharmacokinet
December 2024
Clinical Pharmacology and Quantitative Science, Genmab, Plainsboro, NJ, USA.
Background And Objectives: Epcoritamab is a CD3xCD20 bispecific antibody approved for the treatment of adults with different types of relapsed or refractory (R/R) B cell non-Hodgkin lymphoma (B-NHL) after ≥ 2 lines of systemic therapy. Here we report the first results from a population pharmacokinetic model-based analysis using data from 2 phase 1/2 clinical trials (EPCORE NHL-1, NCT03625037 and EPCORE NHL-3, NCT04542824) evaluating epcoritamab in patients with R/R B-NHL.
Methods: Plasma concentration-time data included 6819 quantifiable pharmacokinetic samples from 327 patients with R/R B-NHL.
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