González-Resina, Rita https://orcid.org/0009-0000-9617-1872
España-Fernández de Valderrama, Sara https://orcid.org/0000-0003-4851-4097
Montañés, Ángeles
Recasens, Valle https://orcid.org/0000-0001-5129-8597
Caballero, Gonzalo https://orcid.org/0000-0001-6623-780X
Funding for this research was provided by:
Universidad de Zaragoza
Article History
Received: 10 September 2025
Accepted: 1 December 2025
First Online: 24 January 2026
Declarations
:
: This study was conducted in accordance with the principles of the Declaration of Helsinki. All patients provided written informed consent to be included in the GEMFIN (Grupo Español de Enfermedades Mieloproliferativas Crónicas Filadelfia Negativas) registry. The GEMFIN registry has been approved by the appropriate national and regional ethics committee (approval codes GEE-AAS-2015-01 and GEE-AAS-2015-02, the latter approved on March 8, 2017). All patient data were dissociated and anonymized; no additional informed consent was required for this study due to its retrospective nature and because the results did not affect the clinical management of patients.
: The authors declare no competing interests.