Cited by 69TGF-β signaling in diseasesPharmaceutical studies and practicesPharmacogenetics and Drug Metabolism

Pharmacokinetic characteristics of vactosertib, a new activin receptor-like kinase 5 inhibitor, in patients with advanced solid tumors in a first-in-human phase 1 study

Jung, Su Young, Hwang, Sunjin, Clarke, Jeffery M., Bauer, Todd M., Keedy, Vicki L., Lee, Hukeun, Park, Neunggyu, Kim, Seong-Jin +1 more·2020·Investigational New Drugs

Abstract

Purposes Vactosertib is a new investigational inhibitor of activin receptor-like kinase 5. The objective of this study was to characterize vactosertib pharmacokinetics that are to be applied for subsequent clinical studies. Methods Vactosertib plasma concentration-time data were obtained from a multicenter, dose-escalation, first-in-human phase 1 study conducted in patients with advanced solid tumors. Each patient orally received a fixed dose of vactosertib with the range of 30 mg to 340 mg once daily under fasted condition. Pharmacokinetic analysis was performed using a non-compartmental method. Results Pharmacokinetic data were evaluable in 29 patients. Vactosertib was rapidly absorbed after the first dose with a median time to maximum concentration (t max) of 1.2 h (interquartile range, 0.8-1.8 h) and quickly eliminated with a median terminal half-life (t 1/2) of 3.2 h (2.2-4.2 h) over the dose range studied. Such trend was also observed after repeated doses for five days (median t max, 1.5 h; median t 1/2, 3.0 h). The area under the concentration-time curve within a dosing interval increased in proportion to dose. The median values of apparent clearance and volume of distribution were 29 L/h (21-44 L/h) and 133 L (77-222 L), respectively. The median accumulation ratio after repeated once-daily doses for five days was 0.87 (0.69-1.07). Conclusions Vactosertib pharmacokinetics were dose-proportional within tested dose range with negligible accumulation when administered once daily for five days. Considering the short half-life, it seems necessary to administer vactosertib twice- or thrice-daily to maintain its concentrations above minimum effective level over a dosing interval.

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Crossref · 10.1007/s10637-019-00835-y

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  • Monoclonal antibodies prevent TGF-β receptors from binding ligand.

    “Another class of therapeutics comprises monoclonal antibodies that prevent TGF-β receptors from binding ligand145,300.”

    From TGFβ biology in cancer progression and immunotherapy (2021) · cites this paper as [300]

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Authors
Jung, S. Y., Hwang, S., Clarke, J. M., Bauer, T. M., Keedy, V. L., Lee, H., Park, N., Kim, S.-J., & Lee, J. I.
Affiliations
  • Seoul National University (KR)
  • Duke Medical Center (US)
  • Sarah Cannon (US)
  • Vanderbilt-Ingram Cancer Center (US)
  • National Cancer Center (KR)
Corresponding author
Lee, Jangik I.
Venue
Investigational New Drugs
Published
2019-07-13
Volume
38
Issue
3
Pages
812-820
ISSN
  • 0167-6997 (ISSN-L)
  • 1573-0646
OpenAlex
W2958406986
Cited by
69
References
27
Citations by year
2026: 6 · 2025: 12 · 2024: 10 · 2023: 8 · 2022: 16 · 2021: 10 · 2020: 6 · 2019: 1
FWCI
2.73
Type
journal article
Language
en
Open access
closed
Locations
  • Investigational New Drugs (publishedVersion)
  • PubMed (publishedVersion)
  • Seoul National University Open Repository (Seoul National University) (submittedVersion)
Funders
MedPacto, Inc.
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Pharmaceutical studies and practices
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
Keywords
vactosertib, ALK5 inhibitor, pharmacokinetics, dose proportionality, oral administration, advanced solid tumors, dosing interval, clearance, volume of distribution
MeSH terms
Receptor, Transforming Growth Factor-beta Type I, Administration, Oral, Adult, Aged, Aged, 80 and over, Aniline Compounds, Drug Administration Schedule, Female, Half-Life, Humans, Male, Middle Aged, Neoplasms, Triazoles, Area Under Curve

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