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Trial · NCT01194973

An Open-label, Multi-center Clinical Trial of Eculizumab in Adult Patients With Atypical Hemolytic-uremic Syndrome

NCT01194973, Phase 2, Completed, Alexion Pharmaceuticals, Inc.; results first posted 2015-04-24

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. An Open-label, Multi-center Clinical Trial of Eculizumab in Adult Patients With Atypical Hemolytic-uremic Syndrome. Trials, record NCT01194973. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01194973

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
An Open-label, Multi-center Clinical Trial of Eculizumab in Adult Patients With Atypical Hemolytic-uremic Syndrome
NCT number
NCT01194973
Status
Completed
Phases
Phase 2
Enrollment
44 participants, actual
Lead sponsor
Alexion Pharmaceuticals, Inc.
Conditions
Atypical Hemolytic-Uremic Syndrome
Interventions
Eculizumab
First posted
2010-09-03
Last updated
2017-05-30
Results first posted
2015-04-24

Source ClinicalTrials.gov

Registered outcomes12

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercentage of Patients With Complete TMA ResponseThrough 26 weeks
Proportion of Patients with Complete TMA response was determined and defined by normalization of hematological parameters (platelet count and LDH) and preservation of renal function (defined as \< 25% increase in serum creatinine from baseline) which were sustained for at least two consecutive measurements obtained at least four weeks apart.
PrimaryPercentage of Patients With Modified Complete TMA ResponseThrough 26 weeks
Proportion of Patients with Modified Complete TMA response through 26 weeks of treatment was determined and defined by normalization of hematological parameters (platelet count and LDH) and improvement in renal function (defined as ≥ 25% reduction from the baseline value in serum creatinine, which were sustained for at least two consecutive measurements obtained at least four weeks apart.
SecondaryPercentage of Patients With Complete Hematologic ResponseThrough 26 weeks
Proportion of Patients with Complete Hematologic response through end of study was determined and defined by normalization of platelet count and LDH sustained for at least two consecutive measurements obtained at least four weeks apart.
SecondaryPercentage of Patients With Platelet Count NormalizationThrough 26 weeks
Proportion of Patients with Platelet Count Normalization through 26 weeks of treatment was determined and defined as the platelet count observed to be ≥ 150 x 109/L on at least two consecutive measurements which span a period of at least four weeks
SecondaryPercentage of Patients With Estimated Glomerular Filtration Rate (eGFR) ImprovementThrough 26 weeks
Proportion of Patients with Estimated Glomerular Filtration Rate (eGFR) Improvement was determined and defined as an increase in eGFR by ≥ 15 mL/min/1.73m\^2 from baseline, sustained for at least two consecutive measurements obtained at least four weeks apart.
SecondaryPlatelet Count Change From Baseline to 26 WeeksThrough 26 weeks
SecondaryPercentage of Patients With Complete TMA ResponseThrough End of Study, Median Exposure 52 Weeks
Proportion of Patients with Complete TMA response through end of study was determined and defined by normalization of hematological parameters (platelet count and LDH) and preservation of renal function (defined as \< 25% increase in serum creatinine from baseline) which were sustained for at least two consecutive measurements obtained at least four weeks apart.
SecondaryPercentage of Patients With Modified Complete TMA ResponseThrough End of Study, Median Exposure 52 Weeks
Proportion of Patients with Modified Complete TMA response through end of study was determined and defined by normalization of hematological parameters (platelet count and LDH) and improvement in renal function (defined as ≥ 25% reduction from the baseline value in serum creatinine, which were sustained for at least two consecutive measurements obtained at least four weeks apart.
SecondaryPercentage of Patients With Complete Hematologic ResponseThrough End of Study, Median Exposure 52 Weeks
Proportion of Patients with Complete Hematologic response through end of study of treatment was determined and defined by normalization of platelet count and LDH sustained for at least two consecutive measurements obtained at least four weeks apart.
SecondaryPercentage of Patients With Platelet Count NormalizationThrough End of Study, Median Exposure 52 Weeks
Proportion of Patients with Platelet Count Normalization through end of study of treatment was determined and defined as the platelet count observed to be ≥ 150 x 109/L on at least two consecutive measurements which span a period of at least four weeks

Outcomes12

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Patients With Complete TMA ResponseThrough 26 weeks
The tabulations of the proportions of patients with Complete TMA Response through 26 weeks were performed for the ITT population. Exact binomial two-sided 95% CI using the Clopper-Pearson method for the responder rate was presented.
Percentage of ParticipantsNUMBER
PRIMARYPercentage of Patients With Modified Complete TMA ResponseThrough 26 weeks
The tabulations of the proportions of patients with Modified Complete TMA Response through 26 weeks were performed for the ITT population. Exact binomial two-sided 95% CI using the Clopper-Pearson method for the responder rate was presented.
Percentage of ParticipantsNUMBER
SECONDARYPercentage of Patients With Complete Hematologic ResponseThrough 26 weeks
The tabulations of the proportions of patients with Complete Hematologic Response through 26 weeks were performed for the ITT population. The number of patients with response and responder rate, along with an exact two-sided 95% CI were summarized.
Percentage of ParticipantsNUMBER
SECONDARYPercentage of Patients With Platelet Count NormalizationThrough 26 weeks
The tabulations of the proportions of patients with Platelet Count Normalization through 26 weeks were performed for the ITT population. The number of patients with response and responder rate, along with an exact two-sided 95% CI were summarized.
Percentage of ParticipantsNUMBER
SECONDARYPercentage of Patients With Estimated Glomerular Filtration Rate (eGFR) ImprovementThrough 26 weeks
The tabulations of the proportions of patients with Estimated Glomerular Filtration Rate (eGFR) Improvement through 26 weeks were performed for the ITT population. The number of patients with response and responder rate, along with an exact two-sided 95% CI were summarized.
Percentage of ParticipantsNUMBER
SECONDARYPlatelet Count Change From Baseline to 26 WeeksThrough 26 weeks
Change from baseline platelet counts were analyzed for the ITT population using a repeated measures Analysis of variance (ANOVA) model. The estimated LS means of change from baseline at each post-baseline visit alongside with 95% CIs and P-values were calculated, as were the parameter estimates for the covariates and their associated P-values.
10^9 cells/LLEAST_SQUARES_MEAN
SECONDARYPercentage of Patients With Complete TMA ResponseThrough End of Study, Median Exposure 52 Weeks
The tabulations of the proportions of patients with Complete TMA Response through end of study were performed for the ITT population. Exact binomial two-sided 95% CI using the Clopper-Pearson method for the responder rate was presented.
Percentage of ParticipantsNUMBER
SECONDARYPercentage of Patients With Modified Complete TMA ResponseThrough End of Study, Median Exposure 52 Weeks
The tabulations of the proportions of patients with Modified Complete TMA Response through end of study were performed for the ITT population. Exact binomial two-sided 95% CI using the Clopper-Pearson method for the responder rate was presented.
Percentage of ParticipantsNUMBER
SECONDARYPercentage of Patients With Complete Hematologic ResponseThrough End of Study, Median Exposure 52 Weeks
The tabulations of the proportions of patients with Complete Hematologic Response through end of study were performed for the ITT population. The number of patients with response and responder rate, along with an exact two-sided 95% CI were summarized.
Percentage of ParticipantsNUMBER
SECONDARYPercentage of Patients With Platelet Count NormalizationThrough End of Study, Median Exposure 52 Weeks
The tabulations of the proportions of patients with Platelet Count Normalization through end of study were performed for the ITT population. The number of patients with response and responder rate, along with an exact two-sided 95% CI were summarized.
Percentage of ParticipantsNUMBER

Results by group12

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percentage of Patients With Complete TMA ResponseEculizumab73.295% Confidence Interval 57.1 to 85.8Percentage of Participants
Percentage of Patients With Modified Complete TMA ResponseEculizumab56.195% Confidence Interval 39.7 to 71.5Percentage of Participants
Percentage of Patients With Complete Hematologic ResponseEculizumab87.895% Confidence Interval 73.8 to 95.9Percentage of Participants
Percentage of Patients With Platelet Count NormalizationEculizumab97.695% Confidence Interval 87.1 to 99.9Percentage of Participants
Percentage of Patients With Estimated Glomerular Filtration Rate (eGFR) ImprovementEculizumab53.795% Confidence Interval 37.4 to 69.3Percentage of Participants
Platelet Count Change From Baseline to 26 WeeksEculizumab117.6895% Confidence Interval 92.77 to 142.5910^9 cells/L
Percentage of Patients With Complete TMA ResponseEculizumab80.595% Confidence Interval 65.1 to 91.2Percentage of Participants
Percentage of Patients With Modified Complete TMA ResponseEculizumab63.495% Confidence Interval 46.9 to 77.9Percentage of Participants
Percentage of Patients With Complete Hematologic ResponseEculizumab97.695% Confidence Interval 87.1 to 99.9Percentage of Participants
Percentage of Patients With Platelet Count NormalizationEculizumab100.095% Confidence Interval 91.4 to 100.0Percentage of Participants

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Screening PeriodSTARTEDEculizumab44
Screening PeriodCOMPLETEDEculizumab41
Screening PeriodNOT COMPLETEDEculizumab3
26 Week Treatment PeriodSTARTEDEculizumab41
26 Week Treatment PeriodCOMPLETEDEculizumab38
26 Week Treatment PeriodNOT COMPLETEDEculizumab3

Adverse events262

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherANAEMIABlood and lymphatic system disordersEculizumab741
otherEOSINOPHILIABlood and lymphatic system disordersEculizumab141
otherIRON DEFICIENCY ANAEMIABlood and lymphatic system disordersEculizumab141
otherLEUKOPENIABlood and lymphatic system disordersEculizumab541
otherLYMPHOPENIABlood and lymphatic system disordersEculizumab341
otherNEUTROPENIABlood and lymphatic system disordersEculizumab241
otherSPONTANEOUS HAEMATOMABlood and lymphatic system disordersEculizumab141
otherTHROMBOCYTOPENIABlood and lymphatic system disordersEculizumab241
otherANGINA PECTORISCardiac disordersEculizumab141
otherCARDIOMYOPATHYCardiac disordersEculizumab141

Adverse event totals3

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityEculizumab
Total, other adverse eventsEculizumab4141
Total, serious adverse eventsEculizumab1941

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
25833956DERIVEDPubMed
33783815DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT01194973

GET https://conductscience.org/api/trials/v1/NCT01194973/events?page=2