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Tolerability, pharmacokinetics, and pharmacodynamics of mirogabalin in healthy subjects: Results from phase 1 studies.

ABSTRACT: Three phase 1 pharmacokinetic (PK)/pharmacodynamics (PD) studies were conducted in healthy men and women to further characterize the safety, tolerability, and PK/PD of mirogabalin administration with or without food and to guide the dose selection and regimen for phase 2 and 3 clinical development. The 3 studies included 2 randomized, double-blind, placebo-controlled, single- and multiple-ascending-dose studies, and 1 open-label, crossover study to evaluate the PK of mirogabalin administered under fasting and fed (high-fat meal) conditions. Forty-eight and 47 healthy volunteers completed the single- and multiple-dose studies, respectively. Thirty subjects were enrolled and completed the food effect study. Mirogabalin was well tolerated in the fed and fasted states. The most frequent treatment-emergent adverse events (TEAEs)-dizziness and somnolence-were expected based on mirogabalin's mechanism of action. Subjects receiving the highest mirogabalin doses (50 and 75 mg single dose) showed greater dizziness and sedation and higher rates of TEAEs than subjects receiving 3-30 mg. After oral administration, mirogabalin was rapidly absorbed (time to maximum concentration, ?1 hour) and eliminated through urine unchanged (61%-72% urinary excretion). Exposure increased in a dose-proportional manner after single or multiple mirogabalin doses. No significant accumulation occurred with multiple doses over 14 days. After single doses of mirogabalin (15 mg), the bioavailability was considered equivalent in the fed and fasted states, indicating that mirogabalin can be taken without food restrictions. Based on these data, mirogabalin 15 mg twice daily was selected as the highest target dose for further clinical development.

SUBMITTER: Brown K

PROVIDER: S-EPMC6106189 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Tolerability, pharmacokinetics, and pharmacodynamics of mirogabalin in healthy subjects: Results from phase 1 studies.

Brown Karen K Mendell Jeanne J Ohwada Shoichi S Hsu Ching C He Ling L Warren Vance V Dishy Victor V Zahir Hamim H

Pharmacology research & perspectives 20180823 5

Three phase 1 pharmacokinetic (PK)/pharmacodynamics (PD) studies were conducted in healthy men and women to further characterize the safety, tolerability, and PK/PD of mirogabalin administration with or without food and to guide the dose selection and regimen for phase 2 and 3 clinical development. The 3 studies included 2 randomized, double-blind, placebo-controlled, single- and multiple-ascending-dose studies, and 1 open-label, crossover study to evaluate the PK of mirogabalin administered und ...[more]

PMID: 30151212

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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

Tolerability, pharmacokinetics, and pharmacodynamics of mirogabalin in healthy subjects: Results from phase 1 studies.

Publications

Tolerability, pharmacokinetics, and pharmacodynamics of mirogabalin in healthy subjects: Results from phase 1 studies.

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