Validated and longitudinally stable asthma phenotypes based on cluster analysis of the ADEPT study.

Details

Serval ID
serval:BIB_F4B07EBA5DAD
Type
Article: article from journal or magazin.
Collection
Publications
Title
Validated and longitudinally stable asthma phenotypes based on cluster analysis of the ADEPT study.
Journal
Respiratory research
Author(s)
Loza M.J., Djukanovic R., Chung K.F., Horowitz D., Ma K., Branigan P., Barnathan E.S., Susulic V.S., Silkoff P.E., Sterk P.J., Baribaud F.
Working group(s)
ADEPT (Airways Disease Endotyping for Personalized Therapeutics) and U-BIOPRED (Unbiased Biomarkers for the Prediction of Respiratory Disease Outcome Consortium) investigators
Contributor(s)
Adcock I., Adriaens N., Ahmed H., Aliprantis A., Alving K., Auffray C., Badorrek P., Bakke P., Balgoma D., Bansal A.T., Barber C., Baribaud F., Bautmans A., Behndig A.F., Bel E., Beleta J., Berglind A., Berton A., Bigler J., Bisgaard H., Bochenek G., Boedigheimer M.J., Bøonnelykke K., Brandsma J., Braun A., Brinkman P., Burg D., Campagna D., Carayannopoulos L., Caruso M., da Purificação R.J., Chaiboonchoe A., Chaleckis R., Chanez P., Chung K.F., Coleman C., Compton C., Corfield J., D'Amico A., Dahlen B., Dahlén S.E., De Alba J., de Boer P., De Lepeleire I., De Meulder B., Dekker T., Delin I., Dennison P., Dijkhuis A., Djukanovic R., Draper A., Edwards J., Emma R., Ericsson M., Erpenbeck V., Erzen D., Fichtner K., Fitch N., Fleming L.J., Flood B., Fowler S.J., Frey U., Gahlemann M., Galffy G., Gallart H., Garrett T., Geiser T., Gent J., Gerhardsson V.M., Gibeon D., Gomez C., Gove K., Gozzard N., Guo Y.K., Hashimoto S., Haughney J., Hedlin G., Hekking P.P., Henriksson E., Hewitt L., Higgenbottam T., Hoda U., Hohlfeld J., Holweg C., Horvath I., Howarth P., Hu R., Hu S., Hu X., Hudson V., James A.J., Kamphuis J., Kennington E.J., Kerry D., Klüglich M., Knobel H., Knowles R., Knox A., Kolmert J., Konradsen J., Kots M., Krueger L., Krug N., Kuo S., Kupczyk M., Lambrecht B., Lantz A.S., Larsson L., Lazarinis N., Lefaudeux D., Lone-Latif S., Loza M.J., Lutter R., Marouzet L., Martin J., Masefield S., Mathon C., Matthews J.G., Mazein A., Meah S., Meiser A., Menzies-Gow A., Metcalf L., Middelveld R., Mikus M., Miralpeix M., Monk P., Montuschi P., Mores N., Murray C.S., Musial J., Myles D., Naz S., Nething K., Nicholas B., Nihlen U., Nilsson P., Nordlund B., Östling J., Pacino A., Pahus L., Palkonen S., Pandis I., Pavlidis S., Pennazza G., Petrén A., Pink S., Postle A., Powel P., Rahman-Amin M., Rao N., Ravanetti L., Ray E., Reinke S., Reynolds L., Riemann K., Riley J., Robberechts M., Roberts A., Roberts G., Rossios C., Rowe A., Russell K., Rutgers M., Sandström T., Santini G., Santoninco M., Schoelch C., Schofield J.P., Seibold W., Shaw D.E., Sigmund R., Singer F., Sjödin M., Skipp P.J., Smids B., Smith C., Smith J., Smith K.M., Söderman P., Sogbesan A., Sousa A.R., Staykova D., Sterk P.J., Strandberg K., Sun K., Supple D., Szentkereszty M., Tamasi L., Tariq K., Thörngren J.O., Thornton B., Thorsen J., Valente S., van A.W., van de Pol M., van D.K., van G.M., Versnel J., Vestbo J., Vink A., Vissing N., von G.C., Wagener A., Wagers S., Wald F., Walker S., Ward J., Weiszhart Z., Wetzel K., Wheelock C.E., Wiegman C., Williams S., Wilson S.J., Woodcock A., Yang X., Yeyasingham E., Yu W., Zetterquist W., Zwinderman K.
ISSN
1465-993X (Electronic)
ISSN-L
1465-9921
Publication state
Published
Issued date
15/12/2016
Volume
17
Number
1
Pages
165
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Asthma is a disease of varying severity and differing disease mechanisms. To date, studies aimed at stratifying asthma into clinically useful phenotypes have produced a number of phenotypes that have yet to be assessed for stability and to be validated in independent cohorts. The aim of this study was to define and validate, for the first time ever, clinically driven asthma phenotypes using two independent, severe asthma cohorts: ADEPT and U-BIOPRED.
Fuzzy partition-around-medoid clustering was performed on pre-specified data from the ADEPT participants (n = 156) and independently on data from a subset of U-BIOPRED asthma participants (n = 82) for whom the same variables were available. Models for cluster classification probabilities were derived and applied to the 12-month longitudinal ADEPT data and to a larger subset of the U-BIOPRED asthma dataset (n = 397). High and low type-2 inflammation phenotypes were defined as high or low Th2 activity, indicated by endobronchial biopsies gene expression changes downstream of IL-4 or IL-13.
Four phenotypes were identified in the ADEPT (training) cohort, with distinct clinical and biomarker profiles. Phenotype 1 was "mild, good lung function, early onset", with a low-inflammatory, predominantly Type-2, phenotype. Phenotype 2 had a "moderate, hyper-responsive, eosinophilic" phenotype, with moderate asthma control, mild airflow obstruction and predominant Type-2 inflammation. Phenotype 3 had a "mixed severity, predominantly fixed obstructive, non-eosinophilic and neutrophilic" phenotype, with moderate asthma control and low Type-2 inflammation. Phenotype 4 had a "severe uncontrolled, severe reversible obstruction, mixed granulocytic" phenotype, with moderate Type-2 inflammation. These phenotypes had good longitudinal stability in the ADEPT cohort. They were reproduced and demonstrated high classification probability in two subsets of the U-BIOPRED asthma cohort.
Focusing on the biology of the four clinical independently-validated easy-to-assess ADEPT asthma phenotypes will help understanding the unmet need and will aid in developing tailored therapies.
NCT01274507 (ADEPT), registered October 28, 2010 and NCT01982162 (U-BIOPRED), registered October 30, 2013.

Pubmed
Open Access
Yes
Create date
13/04/2017 17:19
Last modification date
21/08/2019 6:34
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