It is a multicenter observational non-comparative study of the efficacy and safety of long-term pathogenetic Elizaria® therapy in patients with atypical Hemolytic Uremic Syndrome
After screening, patients meeting all of the inclusion / non-inclusion criteria and vaccinated against meningococcal infections were treated by Elizaria®. The study is planned to include at least 50 patients receiving Elizaria® for the aHUS treatment. The study will consist of a screening period of up to 4 weeks, including, if necessary, immunization with meningococcal vaccine, a treatment period of 52 weeks. Medication will be prescribed in accordance with routine medical practice. Accordingly to minimize the risks and subjectivity of assessments the methods adopted in the routine practice of treating patients with aHUS will be used. Investigators enroll patients with aHUS diagnosis who have indications for pathogenetic therapy and who are receiving Elizaria® under the government program. Patients will receive medication in accordance with the established requirements of national standards and protocols for the treatment of patients with aHUS. The registration of the amount of the drug used will be carried out on the basis of information in the Patient Diaries, as well as primary documentation.
Study Type
OBSERVATIONAL
Enrollment
50
Induction cycle: 900 mg (3 vials of 30 mL, 10 mg/mL) intravenous infusion for 30 minutes once a week for 4 weeks. Maintenance therapy: 1200 mg (4 vials of 30 mL, 10 mg/mL) intravenous infusion for 30 minutes in Week 5, followed by 1200 mg every 14 days.
Federal State Budgetary Educational Institution of Higher Education "Kazan State Medical University" of the Ministry of Health of the Russian Federation
Kazan', Russia
Regional State Budgetary Healthcare Institution "Krasnoyarsk' Regional Clinical Center for Maternity and Childhood Protection"
Krasnoyarsk, Russia
Change in platelet count compared to the screening level
Change in platelet count at 52 week after treatment with study drug compared to baseline at screening
Time frame: 52 week
Change in lactate dehydrogenase (LDH) levels from baseline at screening
Change in LDH levels at 52 week after starting study drug treatment from baseline at screening
Time frame: 52 week
Proportion of patients with normalized platelet levels
Proportion of patients with normal platelet count at 52 week after initiation of study drug treatment
Time frame: 52 week
Proportion of patients with no thrombotic microangiopathy (TMA) events
The absence of TMA-related events is defined as the absence, for at least 12 weeks, of: 1) a decrease in platelet counts greater than 25% from baseline at screening; 2) plasma therapy; 3) hemodialysis.
Time frame: 52 week
Proportion of TMA-related interventions
The proportion of TMA-related interventions is defined as (number of plasma therapy sessions + number of hemodialysis sessions) / number of patient days.
Time frame: 52 week
Proportion of patients with complete TMA response
Complete TMA response is defined as the absence of abnormalities in LDH and platelet levels + improvement in renal function (decrease in creatinine levels by 25% or more compared to the baseline value on screening) when performed at least two consecutive tests within 8 weeks
Time frame: 52 week
Change in eGFR (ml / min. / 1.73m2) compared with the baseline level at screening;
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State budgetary healthcare institution of the city of Moscow "Children's City Clinical Hospital of St. Vladimir of the Healthcare Department of the City of Moscow"
Moscow, Russia
Federal State Autonomous Educational Institution of Higher Education "First Moscow State Medical University n.a. I.M. Sechenov" of the Ministry of Health of the Russian Federation
Moscow, Russia
State budgetary healthcare institution of the City of Moscow "City clinical hospital #52 of the Moscow City Healthcare Department"
Moscow, Russia
State budgetary healthcare institution of the city of Moscow "City Clinical Hospital n.a. A.K. Eramishantsev of the Moscow City Healthcare Department"
Moscow, Russia
St. Petersburg's State Budgetary Healthcare Institution "City Mariinsky Hospital"
Saint Petersburg, Russia
St. Petersburg's State Budgetary Healthcare Institution "Children's City Multidisciplinary Clinical Specialized Center of High Medical Technologies"
Saint Petersburg, Russia
Change in eGFR (mL/min/1.73m2) at 52 week after initiation of study drug treatment from baseline at screening
Time frame: 52 week
Proportion of patients with an improvement in glomerular filtration rate (eGFR) of 15 ml / min / 1.73m2 or more compared to the baseline level at screening.
Proportion of patients with improvement in eGFR of 15 ml/min/1.73m2 or more at 52 week after treatment with study drug compared to baseline at screening
Time frame: 52 week
Proportion of patients with more then 1 stage-improvement in chronic kidney desease (CKD) compared to baseline at screening.
Proportion of patients with \>=1 stage improvement in CKD at 52 week after initiation of study drug treatment compared with baseline at screening
Time frame: 52 week
Proportion of patients with an increase in hemoglobin level of more than 20 g / l compared to the baseline level at screening.
Proportion of patients with an increase in hemoglobin level of more than 20 g/l at 52 week after the start of study drug treatment compared with baseline at screening
Time frame: 52 week
Dynamics of membrane attack complex (MAC) level compared to baseline at Visit 2
Changes in MAC levels at 52 week compared to baseline
Time frame: 52 week
The frequency and severity of adverse events (AEs)
Frequency and severity of adverse events (AEs), including serious adverse events (SAEs) and AEs associated with study drug use
Time frame: 52 weeks
Proportion of patients with antidrug antibodies
Proportion of patients with antidrug antibodies; titer of antidrug antibodies and their neutralizing activity
Time frame: 52 weeks