Markers of iron deficiency in patients with polycythemia vera receiving ruxolitinib or best available therapy.
Leuk Res
; 56: 52-59, 2017 05.
Article
em En
| MEDLINE
| ID: mdl-28193568
ABSTRACT
Polycythemia vera (PV) is characterized by erythropoiesis and JAK2-activating mutations, with increased risks of morbidity and mortality. Most patients with PV are iron deficient, and treatment often includes hematocrit control with phlebotomy, which may exacerbate iron deficiency-associated complications. The phase 3 RESPONSE trial evaluated the JAK1/JAK2 inhibitor ruxolitinib (n=110) versus best available therapy (BAT; n=112) in patients with PV who were hydroxyurea-resistant/intolerant. Ruxolitinib was superior to BAT for hematocrit control, reduction in splenomegaly, and blood count normalization. This exploratory analysis, the first to evaluate iron status in a prospective study of patients with PV, investigated ruxolitinib effects on 7 serum iron markers and iron deficiency-related patient-reported outcomes (PRO). Among patients with evidence of baseline iron deficiency, ruxolitinib was associated with normalization of iron marker levels, compared with lesser improvement with BAT. Iron levels remained stable in ruxolitinib patients with normal iron levels at baseline. Regardless of baseline iron status, treatment with ruxolitinib was associated with improvements in concentration problems, cognitive function, dizziness, fatigue, headaches, and inactivity, although improvements were generally greater among patients with baseline iron deficiency. The improvements in iron deficiency markers and PROs observed with ruxolitinib are suggestive of clinical benefits that warrant further exploration.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Policitemia Vera
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Pirazóis
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Deficiências de Ferro
Tipo de estudo:
Clinical_trials
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Observational_studies
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Risk_factors_studies
Aspecto:
Patient_preference
Limite:
Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Leuk Res
Ano de publicação:
2017
Tipo de documento:
Article
País de publicação:
ENGLAND
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ESCOCIA
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GB
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GREAT BRITAIN
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INGLATERRA
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REINO UNIDO
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SCOTLAND
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UK
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UNITED KINGDOM