Comparison of pharmaceutical properties and biological activities of prednisolone, deflazacort, and vamorolone in DMD disease models

© The Author(s) 2023. Published by Oxford University Press..

Duchenne muscular dystrophy (DMD) is a progressive disabling X-linked recessive disorder that causes gradual and irreversible loss of muscle, resulting in early death. The corticosteroids prednisone/prednisolone and deflazacort are used to treat DMD as the standard of care; however, only deflazacort is FDA approved for DMD. The novel atypical corticosteroid vamorolone is being investigated for treatment of DMD. We compared the pharmaceutical properties as well as the efficacy and safety of the three corticosteroids across multiple doses in the B10-mdx DMD mouse model. Pharmacokinetic studies in the mouse and evaluation of p-glycoprotein (P-gP) efflux in a cellular system demonstrated that vamorolone is not a strong P-gp substrate resulting in measurable central nervous system (CNS) exposure in the mouse. In contrast, deflazacort and prednisolone are strong P-gp substrates. All three corticosteroids showed efficacy, but also side effects at efficacious doses. After dosing mdx mice for two weeks, all three corticosteroids induced changes in gene expression in the liver and the muscle, but prednisolone and vamorolone induced more changes in the brain than did deflazacort. Both prednisolone and vamorolone induced depression-like behavior. All three corticosteroids reduced endogenous corticosterone levels, increased glucose levels, and reduced osteocalcin levels. Using micro-computed tomography, femur bone density was decreased, reaching significance with prednisolone. The results of these studies indicate that efficacious doses of vamorolone, are associated with similar side effects as seen with other corticosteroids. Further, because vamorolone is not a strong P-gp substrate, vamorolone distributes into the CNS increasing the potential CNS side-effects.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:33

Enthalten in:

Human molecular genetics - 33(2024), 3 vom: 20. Jan., Seite 211-223

Sprache:

Englisch

Beteiligte Personen:

Liu, Grace [VerfasserIn]
Lipari, Philip [VerfasserIn]
Mollin, Anna [VerfasserIn]
Jung, Stephen [VerfasserIn]
Teplova, Irina [VerfasserIn]
Li, Wencheng [VerfasserIn]
Ying, Lanqing [VerfasserIn]
More, Vijay [VerfasserIn]
Lennox, William [VerfasserIn]
Yeh, Shirley [VerfasserIn]
McGann, Eric [VerfasserIn]
Moon, Young-Choon [VerfasserIn]
Rice, Cari [VerfasserIn]
Huarte, Eduardo [VerfasserIn]
Gruszka, Barbara [VerfasserIn]
Ray, Balmiki [VerfasserIn]
Goodwin, Elizabeth [VerfasserIn]
Buckendahl, Patricia [VerfasserIn]
Yurkow, Edward [VerfasserIn]
Braughton, Bruce [VerfasserIn]
Narasimhan, Jana [VerfasserIn]
Welch, Ellen [VerfasserIn]
Voronin, Gregory [VerfasserIn]
Weetall, Marla [VerfasserIn]

Links:

Volltext

Themen:

9PHQ9Y1OLM
Corticosteroids
Corticosterone
Deflazacort
Duchenne muscular dystrophy
Journal Article
KR5YZ6AE4B
PK-PD
Pharmaceutical Preparations
Prednisolone
Pregnadienediols
Pregnenediones
VBP15 compound
W980KJ009P

Anmerkungen:

Date Completed 22.01.2024

Date Revised 23.01.2024

published: Print

Citation Status MEDLINE

doi:

10.1093/hmg/ddad173

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM363127178