Thiele, Franz http://orcid.org/0000-0001-6689-8827
Klein, Ariane http://orcid.org/0000-0001-9771-8710
Windschall, Daniel http://orcid.org/0000-0003-3156-5103
Hospach, Anton http://orcid.org/0000-0001-5656-9165
Foeldvari, Ivan http://orcid.org/0000-0003-0659-5298
Minden, Kirsten http://orcid.org/0000-0003-2775-0111
Weller-Heinemann, Frank http://orcid.org/0000-0002-4770-1256
Horneff, Gerd http://orcid.org/0000-0001-5491-7832
Funding for this research was provided by:
AbbVie Deutschland
Novartis Pharma
Pfizer
Roche
Swedish Orphan Biovitrum
Sanofi
Chugai Pharmaceutical
Lilly Deutschland
Amgen
Gilead
GlaxoSmithKline
Medac
Biermann
Deutsche Rheumastiftung (Grant)
Merck Sharp and Dohme
Bayer
Projekt DEAL
Article History
Received: 17 November 2020
Accepted: 17 December 2020
First Online: 16 February 2021
Compliance with ethical standards
:
: Franz Thiele: Mr. Thiele has nothing to disclose. Ariane Klein: Dr. Klein has nothing to disclose. Daniel Windschall: Dr. Windschall reports grants and personal fees from AbbVie, grants and personal fees from Novartis, grants and personal fees from Pfizer, grants and personal fees from Roche, outside the submitted work. Anton Hospach: Dr. Hospach reports personal fees from Novartis, personal fees from SOBI, personal fees from Sanofi, personal fees from Chugai, personal fees from AbbVie, personal fees from Roche, during the conduct of the study. Ivan Foeldvari: Dr. Foeldvari reports personal fees from Novartis, personal fees from Pfizer, personal fees from Sanofi, personal fees from Abbvie, personal fees from Lilly, personal fees from Chugai, personal fees from Amgen, personal fees from Gilead, outside the submitted work. Kirsten Minden: Dr. Minden reports personal fees from Pfizer, Abbvie, Roche, GSK, Medac, Sanofi, Biermann, grants from Deutsche Rheumastiftung, outside the submitted work. Frank–Weller–Heinemann: Dr. Weller-Heinemann reports personal fees from PFIZER, personal fees from NOVARTIS, personal fees from ABBVIE, personal fees from CHUGAI, personal fees from ROCHE, during the conduct of the study. Gerd Horneff: Dr. Horneff reports grants and personal fees from Pfizer, grants and personal fees from Roche, grants and personal fees from MSD, personal fees from Sobi, personal fees from GSK, personal fees from Sanofi, grants and personal fees from AbbVie, grants and personal fees from Chugai, personal fees from Bayer, grants and personal fees from Novartis, outside the submitted work.
: The German BIKER registry was approved by the ethics committee of the physician board Aerztekammer Nordrhein, Duesseldorf (reference number 2/2015/7441). The procedures used in this study adhere to the tenets of the Declaration of Helsinki.
: Written consent was obtained from patients and parents and repeated if patient became adult. Only pseudonymized data were collected.
: No part of this study has been published or is under consideration for publication elsewhere.