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1.
J Clin Immunol ; 43(3): 557-567, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36383294

RESUMEN

PURPOSE: To assess the efficacy, pharmacokinetics, and safety of a new, highly purified 10% IVIg (BT595, Yimmugo®) administered in children with PID. METHODS: This was an open-label, prospective, uncontrolled, multicenter Phase III pivotal trial. Among the 67 subjects in the trial were 18 pediatric patients aged 2 to 17 years with diagnosis of PID included in this analysis. They received doses between 0.2 and 0.8 g/kg body weight for approximately 12 months at intervals of either 3 or 4 weeks. Dosage and dosing interval were based on each patient's pre-trial infusion schedule. The rates of acute serious bacterial infections (SBI), secondary efficacy, safety, and pharmacokinetic outcomes were evaluated. RESULTS: No SBI occurred in the pediatric population. Two hundred sixty infusions were administered to the 18 pediatric patients. The mean (SD) IgG trough level was 8.55 (1.67) g/L at baseline and 8.84 (2.17) g/L at the follow-up visit after the last BT595 infusion. At the single infusions respectively, the average mean IgG trough levels ranged between 8.52 and 10.58 g/L. More than 85% of all infusions administered were not associated with any infusional AE (start during or within 72 h post-infusion). None of the severe or serious AEs were related to the investigational medicinal product (IMP). No premedication was used. Thirteen children reached a maximum infusion rate between > 2.0 and 8 mL/kg/h; no AE with an onset during the infusion occurred at these infusion rates. CONCLUSION: BT595 is effective, convenient, well tolerated, and safe for the treatment of children with PID. TRIAL REGISTRATION: EudraCT: 2015-003652-52; NCT02810444, registered June 23, 2016.


Asunto(s)
Infecciones Bacterianas , Síndromes de Inmunodeficiencia , Enfermedades de Inmunodeficiencia Primaria , Humanos , Niño , Estudios Prospectivos , Síndromes de Inmunodeficiencia/diagnóstico , Inmunoglobulina G/uso terapéutico , Inmunoglobulinas Intravenosas/uso terapéutico , Infecciones Bacterianas/tratamiento farmacológico , Enfermedades de Inmunodeficiencia Primaria/tratamiento farmacológico
2.
Vox Sang ; 117(10): 1153-1162, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35944615

RESUMEN

BACKGROUND AND OBJECTIVES: To evaluate the efficacy, safety and pharmacokinetics of a new, highly purified 10% IVIg (BT595, Yimmugo®) administered in children and adults with Primary immunodeficiency diseases (PID). MATERIALS AND METHODS: Prospective, uncontrolled, multicentre Phase III trial. Patients aged 2 to <76 years with PID were switched from their pre-trial IVIg replacement therapy to BT595. In all, 67 patients (49 adults, 18 children) received doses between 0.2 and 0.8 g/kg body weight for approximately 12 months at intervals of 3 or 4 weeks. Dosing and dosing intervals were based on each patient's pre-trial infusion schedule. The primary end point was the rate of acute serious bacterial infections (SBIs); secondary efficacy, safety and pharmacokinetic outcomes were also evaluated. RESULTS: The primary efficacy end point was met, and the unadjusted SBI rate was 0.01 per subject-year (adjusted SBI rate 0.015 per subject-year, with an upper limit of the one-sided 99% confidence interval of 0.151). A single adult patient experienced one event classified as an SBI. All secondary end points, including those related to infections, supported the efficacy. Infusion rates were increased up to 8 ml/kg/h. Overall, 8% of infusions were associated with ≥1 infusional adverse event (AE) (start during or within 72 h post-infusion), comprising mainly headache (2.4%), fatigue (0.9%) and nausea (0.5%). There were no infusional AEs at infusion rates of >4.0 ml/kg/h, and only one patient required a single premedication. The observed patterns, severity and frequency of treatment-emergent adverse events are consistent with the established safety profile for IVIgs and did not show clinically relevant differences between all age groups. CONCLUSION: BT595 is effective, safe and well tolerated for treating patients with PID.


Asunto(s)
Síndromes de Inmunodeficiencia , Enfermedades de Inmunodeficiencia Primaria , Adulto , Niño , Humanos , Inmunoglobulinas Intravenosas/efectos adversos , Síndromes de Inmunodeficiencia/tratamiento farmacológico , Infusiones Intravenosas , Estudios Prospectivos
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