Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Incidence and severity of treatment emergent adverse events (TEAEs) |
Open Label Treatment Period (OLTP) |
Through day 225 |
|
Secondary |
Percent change in LDH from pre-treatment to end-of-treatment period |
OLTP |
Screening through Day 225 |
|
Secondary |
Percent change in LDH from pre-treatment |
OLTP |
Screening through Day 29 |
|
Secondary |
Proportion of participants who are transfusion-free |
OLTP Not requiring a RBC transfusion as per protocol algorithm |
Baseline through Day 225 |
|
Secondary |
Proportion of participants who are transfusion-free |
OLTP Not requiring a RBC transfusion as per protocol algorithm |
Day 29 through Day 225 |
|
Secondary |
Rate of RBCs transfused |
OLTP |
Baseline through Day 225 |
|
Secondary |
Rate of RBCs transfused |
OLTP |
Day 29 through Day 225 |
|
Secondary |
Number of units of RBCs transfused |
OLTP |
Baseline through Day 225 |
|
Secondary |
Number of units of RBCs transfused |
OLTP |
Day 29 through Day 225 |
|
Secondary |
Proportion of participants with breakthrough hemolysis |
OLTP |
Baseline through Day 225 |
|
Secondary |
Proportion of participants with breakthrough hemolysis |
OLTP |
Day 29 through Day 225 |
|
Secondary |
Proportion of participants who maintain adequate control of hemolysis |
OLTP |
Post Baseline (on Day 1) through Day 225 |
|
Secondary |
Proportion of participants who maintain adequate control of hemolysis |
OLTP |
Day 57 through Day 225 |
|
Secondary |
Proportion of participants with adequate control of hemolysis at each visit |
OLTP |
Post Baseline (on Day 1) through Day 225 |
|
Secondary |
Proportion of participants with normalization of their LDH at each visit |
OLTP |
Post Baseline (on Day 1) through Day 225 |
|
Secondary |
Area under the curve (AUC) of LDH over time |
OLTP |
Baseline through Day 225 |
|
Secondary |
AUC of LDH over time |
OLTP |
Day 57 through Day 225 |
|
Secondary |
Proportion of participants with hemoglobin stabilization |
OLTP Participants who do not receive RBC transfusion and have no decrease in hemoglobin levels meeting pre-specified criteria |
Baseline through Day 225 |
|
Secondary |
Proportion of participants with hemoglobin stabilization |
OLTP Participants who do not receive RBC transfusion and have no decrease in hemoglobin levels meeting pre-specified criteria. |
Day 29 through Day 225 |
|
Secondary |
Change in hemoglobin levels |
OLTP |
Baseline to Day 225 |
|
Secondary |
Change in fatigue as measured by Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) scale |
OLTP The FACIT-Fatigue is a 13-item, self-reported PRO measure assessing an individual's level of fatigue during their usual daily activities over the past week. This questionnaire is part of the FACIT measurement system, a compilation of questions measuring health-related QoL in patients with cancer and other chronic illnesses. The FACIT-fatigue assesses the level of fatigue using a Likert scale ranging from 0 (not at all) to 4 (very much). Scores range from 0 to 52, with higher scores indicating a higher quality of life. |
Baseline to Day 225 |
|
Secondary |
Change in health related quality of life (HRQoL) as measured by the global health status subscale of the European Organization for Research and Treatment of Cancer (EORTC)- Quality of Life Cancer Patients Questionnaire (QLQ) - 30 Scale |
OLTP EORTC-QLQ-C30 is a 30-item subject self-report questionnaire composed of both multi-item and single scales, including a global health status/quality of life (GHS/QoL) scale. Participants rate items on a four-point scale, with 1 as "not at all" and 4 as "very much." A change of 5 - 10 points is considered a small. A change of 10 - 20 points is considered a moderate change. |
Baseline to Day 225 |
|
Secondary |
Change in physical function (PF) scores on the EORTC QLQ-C30 |
OLTP |
Baseline to Day 225 |
|
Secondary |
Change in total CH50 |
OLTP |
Baseline to Day 225 |
|
Secondary |
Concentrations of total pozelimab and eculizumab in serum |
OLTP |
Up to Day 225 |
|
Secondary |
Concentrations of total cemdisiran in plasma |
OLTP |
Up to Day 225 |
|
Secondary |
Change from baseline in concentration of total C5 |
OLTP |
Up to Day 225 |
|
Secondary |
Incidence of pozelimab anti-drug antibody (ADA) responses over time |
OLTP |
Up to Day 225 |
|
Secondary |
Incidence of cemdisiran anti-drug antibody (ADA) responses over time |
OLTP |
Up to Day 225 |
|
Secondary |
Incidence and severity of TEAEs for participants who receive dose intensification |
Intensified OLTP |
Through Day 225 |
|
Secondary |
Incidence and severity of TEAEs in participants treated with pozelimab and cemdisiran combination therapy |
Optional Open-Label Extension Period (OLEP) |
Through Week 52 |
|
Secondary |
Change of LDH |
OLEP |
Day 1 to Week 24 |
|
Secondary |
Change of LDH |
OLEP |
Day 1 to Week 52 |
|
Secondary |
Percent change of LDH |
OLEP |
Day 1 to Week 24 |
|
Secondary |
Percent change of LDH |
OLEP |
Day 1 to Week 52 |
|
Secondary |
Proportion of participants who are transfusion-free |
OLEP Not requiring an RBC transfusion as per protocol algorithm |
Day 1 through Week 24 |
|
Secondary |
Proportion of participants who are transfusion-free |
OLEP Not requiring an RBC transfusion as per protocol algorithm |
Day 1 through Week 52 |
|
Secondary |
Rate of RBCs transfused |
OLEP |
Day 1 through Week 24 |
|
Secondary |
Rate of RBCs transfused |
OLEP |
Day 1 through Week 52 |
|
Secondary |
Number of units of RBCs transfused |
OLEP |
Day 1 through Week 24 |
|
Secondary |
Number of units of RBCs transfused |
OLEP |
Day 1 through Week 52 |
|
Secondary |
Proportion of participants with breakthrough hemolysis |
OLEP |
Day 1 through Week 24 |
|
Secondary |
Proportion of participants with breakthrough hemolysis |
OLEP |
Day 1 through Week 52 |
|
Secondary |
Proportion of participants who maintain adequate control of their hemolysis |
OLEP |
Day 1 through Week 24 |
|
Secondary |
Proportion of participants who maintain adequate control of their hemolysis |
OLEP |
Day 1 through Week 52 |
|
Secondary |
Proportion of participants with adequate control of hemolysis at each visit |
OLEP |
Day 1 through Week 24 |
|
Secondary |
Proportion of participants with adequate control of hemolysis at each visit |
OLEP |
Day 1 through Week 52 |
|
Secondary |
Proportion of participants with normalization of LDH at each visit |
OLEP |
Day 1 through Week 24 |
|
Secondary |
Proportion of participants with normalization of LDH at each visit |
OLEP |
Day 1 through Week 52 |
|
Secondary |
AUC of LDH over time |
OLEP |
Day 1 through Week 24 |
|
Secondary |
AUC of LDH over time |
OLEP |
Day 1 through Week 52 |
|
Secondary |
Proportion of participants with hemoglobin stabilization |
OLEP Participants who do not receive RBC transfusion and have no decrease in hemoglobin levels meeting pre-specified criteria. |
Day 1 through Week 24 |
|
Secondary |
Proportion of participants with hemoglobin stabilization |
OLEP Participants who do not receive RBC transfusion and have no decrease in hemoglobin levels meeting pre-specified criteria. |
Day 1 through Week 52 |
|
Secondary |
Change in hemoglobin levels |
OLEP |
Day 1 to Week 24 |
|
Secondary |
Change in hemoglobin levels |
OLEP |
Day 1 to Week 52 |
|
Secondary |
Change in fatigue as measured by FACIT-Fatigue scale |
OLEP |
Day 1 to Week 52 |
|
Secondary |
Change in GHS/QoL on the EORTC QLQ-C30 |
OLEP |
Day 1 to Week 52 |
|
Secondary |
Change in PF scores on the EORTC QLQ-C30 |
OLEP |
Day 1 to Week 52 |
|
Secondary |
Change in CH50 |
OLEP |
Day 1 to Week 16 |
|
Secondary |
Change in CH50 |
OLEP |
Day 1 to Week 24 |
|
Secondary |
Change in CH50 |
OLEP |
Day 1 to Week 52 |
|
Secondary |
Concentrations of total pozelimab in serum |
OLEP |
Up to Week 52 |
|
Secondary |
Concentrations of total C5 |
OLEP |
Up to Week 52 |
|
Secondary |
Concentrations of cemdisiran in plasma |
OLEP |
Up to Week 52 |
|
Secondary |
Incidence of pozelimab anti-drug antibody (ADA) responses over time |
OLEP |
Up to Week 52 |
|
Secondary |
Incidence of cemdisiran anti-drug antibody (ADA) responses over time |
OLEP |
Up to Week 52 |
|