Dataset Information

A Phase 1 Study of the Safety, Tolerability, and Pharmacokinetics of Biapenem in Healthy Adult Subjects.

ABSTRACT: The pharmacokinetics and safety of biapenem were studied in 36 healthy adult subjects in a randomized, placebo-controlled, double blind, sequential single and multiple-ascending dose study using doses from 250 to 1250 mg administered three times a day using 3-hour infusions. Maximum concentrations for biapenem were achieved at the end of the 3-hour infusion. Biapenem exposure (AUC) increased in a slightly greater than dose-proportional manner following single and multiple doses with no evidence of accumulation with multiple doses. Plasma AUCs increased from 18 mg*h/L at 250 mg to 150 mg*h/L at 1250 mg. Urinary recovery ranged from 14.2% at 250 mg to 42.3% at 1250 mg. Biapenem was well tolerated up to 1000 mg administered every 8 hours by 3-hour infusion for 7 days; however, a higher incidence of nausea, vomiting, and rash was reported at 1250 mg. There were no serious adverse events (SAEs) reported following either single or multiple doses of biapenem and all AEs were mild or moderate in severity.

SUBMITTER: Griffith DC

PROVIDER: S-EPMC8092883 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature

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A Phase 1 Study of the Safety, Tolerability, and Pharmacokinetics of Biapenem in Healthy Adult Subjects.

Griffith David C DC Morgan Elizabeth E EE Dudley Michael N MN Loutit Jeffery S JS

Antimicrobial agents and chemotherapy 20210308 5

The pharmacokinetics and safety of biapenem were studied in 36 healthy adult subjects in a randomized, placebo-controlled, double blind, sequential single and multiple-ascending dose study using doses from 250 to 1250 mg administered three times a day using 3-hour infusions. Maximum concentrations for biapenem were achieved at the end of the 3-hour infusion. Biapenem exposure (AUC) increased in a slightly greater than dose-proportional manner following single and multiple doses with no evidence ...[more]

PMID: 33685898

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Project description:BACKGROUND: Preclinical studies have demonstrated that pharmacological mobilization and recruitment of endogenous bone marrow stem cells and immunoregulatory cells by a combination of plerixafor and low-dose tacrolimus (MRG-001) improves wound healing, promotes tissue regeneration and prevents allograft rejection. This first‐in‐human phase I dose‐escalation study evaluates the safety, tolerability, pharmacokinetics and pharmacodynamics of MRG-001, a novel fixed-dose combination drug. METHODS: In this Phase 1, double‐blind, randomized, placebo-controlled study, multiple ascending dose (MAD) cohorts are randomized to receive MRG-001 containing up to 0.02 mL/kg (plerixafor 24 mg/mL and tacrolimus 0.5 mg/mL) or saline placebo, subcutaneously every other day (SC, QAD) for 5 days (ClinicalTrials.gov: NCT04646603)The primary outcome is safety and tolerability. Safety and functional assessments are performed throughout the study. Blood samples are collected to evaluate systemic exposure. Fluorescence-activated cell sorting analysis and RNA expression of peripheral blood mononuclear cells (PBMCs) are used to evaluate the pharmacodynamics. RESULTS: Fourteen subjects received MRG-001 and 7 received a placebo. MRG-001 is safe and well-tolerated over the selected dose range. No deaths or severe adverse events are reported. There are no clinically significant laboratory changes after MRG-001 administration, apart from the predicted generalized leukocytosis. The intermediate dose group (0.01 mL/kg) showed the most significant white blood cell mobilization over time and increased by 2-4 fold from baseline and returned to baseline levels prior to the next injection. Circulating immune cells including FOXP3+ regulatory T cells and hematopoietic stem cells (CD45IntCD34+) increased significantly after MRG-001 injection. PBMC RNA sequencing and gene set enrichment analysis revealeds 31 down-regulated pathways in the intermediate dose MRG-001 group compared to no changes in the placebo group. CONCLUSION: MRG-001 is safe and well-tolerated across the full dose ranges tested. MRG-001 may be a clinically useful therapy for immunoregulation and tissue regeneration. A Phase II trial to treat severely and critically ill COVID-19 patients with MRG-001 has been initiated (NCT04646603) and a second phase II trial will explore the potential of MRG-001 to accelerate wound healing (NCT05844527),

Dataset Information

A Phase 1 Study of the Safety, Tolerability, and Pharmacokinetics of Biapenem in Healthy Adult Subjects.

Publications

A Phase 1 Study of the Safety, Tolerability, and Pharmacokinetics of Biapenem in Healthy Adult Subjects.

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