Human epididymis protein 4 (HE4) plasma concentration inversely correlates with the improvement of cystic fibrosis lung disease in p.Phe508del-CFTR homozygous cases treated with the CFTR modulator lumacaftor/ivacaftor combination

Copyright © 2023. Published by Elsevier B.V..

BACKGROUND: We previously documented that elevated HE4 plasma concentration decreased in people with CF (pwCF) bearing the p.Gly551Asp-CFTR variant in response to CFTR modulator (CFTRm) ivacaftor (IVA), and this level was inversely correlated with the FEV1% predicted values (ppFEV1). Although the effectiveness of lumacaftor (LUM)/IVA in pwCF homozygous for the p.Phe508del-CFTR variant has been evaluated, plasma biomarkers were not used to monitor treatment efficacy thus far.

METHODS: Plasma HE4 concentration was examined in 68 pwCF drawn from the PROSPECT study who were homozygous for the p.Phe508del-CFTR variant before treatment and at 1, 3, 6 and 12 months after administration of LUM/IVA therapy. Plasma HE4 was correlated with ppFEV1 using their absolute and delta values. The discriminatory power of delta HE4 was evaluated for the detection of lung function improvements based on ROC-AUC analysis and multiple regression test.

RESULTS: HE4 plasma concentration was significantly reduced below baseline following LUM/IVA administration during the entire study period. The mean change of ppFEV1 was 2.6% (95% CI, 0.6 to 4.5) by 6 months of therapy in this sub-cohort. A significant inverse correlation between delta values of HE4 and ppFEV1 was observed especially in children with CF (r=-0.7053; p<0.0001). Delta HE4 predicted a 2.6% mean change in ppFEV1 (AUC: 0.7898 [95% CI 0.6823-0.8972]; P < 0.0001) at a cut-off value of -10.7 pmol/L. Moreover, delta HE4 independently represented the likelihood of being a responder with ≥ 5% delta ppFEV1 at 6 months (OR: 0.89, 95% CI: 0.82-0.95; P = 0.001).

CONCLUSIONS: Plasma HE4 level negatively correlates with lung function improvement assessed by ppFEV1 in pwCF undergoing LUM/IVA CFTRm treatment.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:22

Enthalten in:

Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society - 22(2023), 6 vom: 01. Nov., Seite 1085-1092

Sprache:

Englisch

Beteiligte Personen:

Pócsi, Marianna [VerfasserIn]
Fejes, Zsolt [VerfasserIn]
Bene, Zsolt [VerfasserIn]
Nagy, Attila [VerfasserIn]
Balogh, István [VerfasserIn]
Amaral, Margarida D [VerfasserIn]
Macek, Milan [VerfasserIn]
Nagy, Béla [VerfasserIn]

Links:

Volltext

Themen:

126880-72-6
1Y740ILL1Z
Aminophenols
Aminopyridines
Benzodioxoles
Biomarker
CFTR protein, human
Chloride Channel Agonists
Cystic Fibrosis Transmembrane Conductance Regulator
Cystic fibrosis
Drug Combinations
EGP8L81APK
HE4
Ivacaftor
Journal Article
Lumacaftor
Lumacaftor/ivacaftor
PpFEV1
Sweat chloride

Anmerkungen:

Date Completed 04.12.2023

Date Revised 04.12.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jcf.2023.04.001

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM355910241