Cochrane · systematic review · CD014544

Non‐clotting factor therapies for preventing bleeds in people with congenital hemophilia A or B

Olasupo, OO, Noronha, N, Lowe, MS, et al. · Cochrane Database of Systematic Reviews · 2024 · Cochrane Library

SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
49
current version
GRADE rated
49
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 2 · 4.1%Low 13 · 26.5%Moderate 34 · 69.4%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Summary of findings table ‐ Emicizumab prophylaxis compared to on‐demand therapy in people with inhibitors

Population: people with inhibitors
7 questions
OutcomeEffectEvidenceStatus / GRADE
Annualized Bleeding Rate (ABR) ‐ All treated bleeds
Summary of findings table ‐ Emicizumab prophylaxis vs on‐demand therapy
no estimate extracted1 study · 53 participantsModerate
Downgraded: risk of bias
Annualized spontaneous Bleeding Rate (AsBR)
Summary of findings table ‐ Emicizumab prophylaxis vs on‐demand therapy
no estimate extracted1 study · 53 participantsModerate
Downgraded: risk of bias
Annualized joint Bleeding Rate (AjBR)
Summary of findings table ‐ Emicizumab prophylaxis vs on‐demand therapy
no estimate extracted1 study · 53 participantsModerate
Downgraded: risk of bias
Proportion with zero bleeds
Summary of findings table ‐ Emicizumab prophylaxis vs on‐demand therapy
RR 11.31 [1.66, 77.3]1 study · 53 participantsModerate
Downgraded: risk of bias
Change from baseline in total score ‐ Haem‐A‐QoL Scale from: 0 (better) to 100
Summary of findings table ‐ Emicizumab prophylaxis vs on‐demand therapy
no estimate extracted1 study · 40 participantsLow
Downgraded: risk of bias
All adverse events
Summary of findings table ‐ Emicizumab prophylaxis vs on‐demand therapy
RR 1.97 [1.26, 3.1]1 study · 52 participantsModerate
Downgraded: risk of bias
Serious adverse events
Summary of findings table ‐ Emicizumab prophylaxis vs on‐demand therapy
RR 1.32 [0.48, 3.63]1 study · 52 participantsModerate
Downgraded: risk of bias

Summary of findings table ‐ Fitusiran prophylaxis compared to on‐demand therapy in people with inhibitors

Population: people with inhibitors
7 questions
OutcomeEffectEvidenceStatus / GRADE
Annualized Bleeding Rate (ABR) ‐ All treated bleeds
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
no estimate extracted1 study · 57 participantsModerate
Downgraded: risk of bias
Annualized spontaneous Bleeding Rate (AsBR)
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
no estimate extracted1 study · 57 participantsModerate
Downgraded: risk of bias
Annualized joint Bleeding Rate (AjBR)
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
no estimate extracted1 study · 57 participantsModerate
Downgraded: risk of bias
Change from baseline in total health score, Haem‐A‐QoLScale from: 0 (better) to 100
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
no estimate extracted1 study · 48 participantsLow
Downgraded: risk of bias
Proportion with zero bleeds
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
RR 12.5 [1.83, 85.38]1 study · 57 participantsModerate
Downgraded: risk of bias
All adverse events
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
RR 1.6 [1.08, 2.37]1 study · 60 participantsModerate
Downgraded: risk of bias
Serious adverse events
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
RR 0.65 [0.24, 1.78]1 study · 60 participantsModerate
Downgraded: risk of bias

Summary of findings table ‐ Concizumab prophylaxis compared to on‐demand therapy in people with inhibitors

Population: people with inhibitors
7 questions
OutcomeEffectEvidenceStatus / GRADE
Annualized Bleeding Rate (ABR), All bleeds
Summary of findings table ‐ Concizumab prophylaxis vs on‐demand therapy
no estimate extracted2 studies · 68 participantsLow
Downgraded: risk of bias
Annualized spontaneous Bleeding Rate (AsBR)
Summary of findings table ‐ Concizumab prophylaxis vs on‐demand therapy
no estimate extracted2 studies · 78 participantsVery low
Downgraded: risk of bias, inconsistency
Annualized joint Bleeding Rate (AjBR)
Summary of findings table ‐ Concizumab prophylaxis vs on‐demand therapy
no estimate extracted2 studies · 78 participantsLow
Downgraded: risk of bias
Proportion with zero bleeds
Summary of findings table ‐ Concizumab prophylaxis vs on‐demand therapy
RR 6.05 [1.59, 23]1 study · 52 participantsLow
Downgraded: risk of bias
Change from baseline in SF‐36v2 ‐ mental component scoreScale from: 0 to 100 (better)
Summary of findings table ‐ Concizumab prophylaxis vs on‐demand therapy
no estimate extracted1 study · 26 participantsVery low
Downgraded: risk of bias, imprecision
Adverse events ‐ All adverse events
Summary of findings table ‐ Concizumab prophylaxis vs on‐demand therapy
RR 1.14 [0.76, 1.7]2 studies · 78 participantsLow
Downgraded: risk of bias
Adverse events ‐ Serious adverse events
Summary of findings table ‐ Concizumab prophylaxis vs on‐demand therapy
RR 0.45 [0.06, 3.38]2 studies · 78 participantsLow
Downgraded: risk of bias

Summary of findings table ‐ Emicuzimab 1.5 mg/kg weekly prophylaxis compared to on‐demand therapy in people without inhibitors

Population: people without inhibitors
7 questions
OutcomeEffectEvidenceStatus / GRADE
Annualized Bleeding Rate (ABR) ‐ All treated bleeds
Summary of findings table ‐ Emicuzimab 1.5 mg/kg weekly prophylaxis vs on‐demand therapy
no estimate extracted1 study · 54 participantsModerate
Downgraded: risk of bias
Annualized joint Bleeding Rate (AjBR)
Summary of findings table ‐ Emicuzimab 1.5 mg/kg weekly prophylaxis vs on‐demand therapy
no estimate extracted1 study · 54 participantsModerate
Downgraded: risk of bias
Annualized spontaneous Bleeding Rate (AsBR)
Summary of findings table ‐ Emicuzimab 1.5 mg/kg weekly prophylaxis vs on‐demand therapy
no estimate extracted1 study · 54 participantsModerate
Downgraded: risk of bias
Proportion of participants with zero bleeds
Summary of findings table ‐ Emicuzimab 1.5 mg/kg weekly prophylaxis vs on‐demand therapy
RR 19 [1.21, 298.4]1 study · 54 participantsLow
Downgraded: risk of bias, imprecision
Change in Haem‐A‐QoL total score Scale from: 0 (better) to 100
Summary of findings table ‐ Emicuzimab 1.5 mg/kg weekly prophylaxis vs on‐demand therapy
no estimate extracted1 study · 47 participantsLow
Downgraded: risk of bias
All adverse events
Summary of findings table ‐ Emicuzimab 1.5 mg/kg weekly prophylaxis vs on‐demand therapy
RR 2.83 [1.47, 5.47]1 study · 54 participantsModerate
Downgraded: risk of bias
Serious adverse events
Summary of findings table ‐ Emicuzimab 1.5 mg/kg weekly prophylaxis vs on‐demand therapy
RR 0.5 [0.03, 7.54]1 study · 54 participantsModerate
Downgraded: risk of bias

Summary of findings table ‐ Emicuzimab 3.0 mg/kg bi‐weekly prophylaxis compared to on‐demand therapy in people without inhibitors

Population: people without inhibitors
7 questions
OutcomeEffectEvidenceStatus / GRADE
Annualized Bleeding Rate (ABR) ‐ All treated bleeds
Summary of findings table ‐ Emicuzimab 3.0 mg/kg bi‐weekly prophylaxis vs on‐demand therapy
no estimate extracted1 study · 53 participantsModerate
Downgraded: risk of bias
Annualized joint Bleeding Rate (AjBR)
Summary of findings table ‐ Emicuzimab 3.0 mg/kg bi‐weekly prophylaxis vs on‐demand therapy
no estimate extracted1 study · 53 participantsModerate
Downgraded: risk of bias
Annualized spontaneous Bleeding Rate (AsBR)
Summary of findings table ‐ Emicuzimab 3.0 mg/kg bi‐weekly prophylaxis vs on‐demand therapy
no estimate extracted1 study · 53 participantsModerate
Downgraded: risk of bias
Proportion of participants with zero bleeds
Summary of findings table ‐ Emicuzimab 3.0 mg/kg bi‐weekly prophylaxis vs on‐demand therapy
RR 15.31 [0.96, 242.76]1 study · 53 participantsLow
Downgraded: risk of bias, imprecision
Change in total score, Haem‐A‐QoLScale from: 0 (better) to 100
Summary of findings table ‐ Emicuzimab 3.0 mg/kg bi‐weekly prophylaxis vs on‐demand therapy
no estimate extracted1 study · 53 participantsLow
Downgraded: risk of bias
All adverse events
Summary of findings table ‐ Emicuzimab 3.0 mg/kg bi‐weekly prophylaxis vs on‐demand therapy
RR 1.71 [1.06, 2.77]1 study · 53 participantsModerate
Downgraded: risk of bias
Serious adverse events
Summary of findings table ‐ Emicuzimab 3.0 mg/kg bi‐weekly prophylaxis vs on‐demand therapy
RR 1.54 [0.17, 13.79]1 study · 53 participantsModerate
Downgraded: risk of bias

Summary of findings table ‐ Emicizumab 1.5 mg/kg once weekly compared to emicizumab 3.0 mg/kg every 2 weeks in people without inhibitors

Population: people without inhibitors
7 questions
OutcomeEffectEvidenceStatus / GRADE
Annualized Bleeding Rate (ABR) ‐ All treated bleeds
Summary of findings table ‐ Emicizumab 1.5 mg/kg once weekly vs emicizumab 3.0 mg/kg every 2 weeks
no estimate extracted1 study · 71 participantsModerate
Downgraded: risk of bias
Annualized joint Bleeding Rate (AjBR)
Summary of findings table ‐ Emicizumab 1.5 mg/kg once weekly vs emicizumab 3.0 mg/kg every 2 weeks
no estimate extracted1 study · 71 participantsModerate
Downgraded: risk of bias
Annualized spontaneous Bleeding Rate (AsBR)
Summary of findings table ‐ Emicizumab 1.5 mg/kg once weekly vs emicizumab 3.0 mg/kg every 2 weeks
no estimate extracted1 study · 71 participantsModerate
Downgraded: risk of bias
Proportion of participants with zero bleeds
Summary of findings table ‐ Emicizumab 1.5 mg/kg once weekly vs emicizumab 3.0 mg/kg every 2 weeks
RR 1.25 [0.74, 2.1]1 study · 71 participantsModerate
Downgraded: risk of bias
Change in total score, Haem‐A‐QoL Scale from: 0 (better) to 100
Summary of findings table ‐ Emicizumab 1.5 mg/kg once weekly vs emicizumab 3.0 mg/kg every 2 weeks
no estimate extracted1 study · 63 participantsLow
Downgraded: risk of bias
All adverse events
Summary of findings table ‐ Emicizumab 1.5 mg/kg once weekly vs emicizumab 3.0 mg/kg every 2 weeks
RR 1.1 [0.04, 2.97]1 study · 71 participantsModerate
Downgraded: risk of bias
Serious adverse events
Summary of findings table ‐ Emicizumab 1.5 mg/kg once weekly vs emicizumab 3.0 mg/kg every 2 weeks
RR 0.32 [0.04, 2.97]1 study · 71 participantsModerate
Downgraded: risk of bias

Summary of findings table ‐ Fitusiran prophylaxis compared to on‐demand therapy in people without inhibitors

Population: people without inhibitors
7 questions
OutcomeEffectEvidenceStatus / GRADE
Annualized Bleeding Rate (ABR) ‐ All treated bleeds
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
no estimate extracted1 study · 119 participantsModerate
Downgraded: risk of bias
Annualized joint Bleeding Rate (AjBR)
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
no estimate extracted1 study · 119 participantsModerate
Downgraded: risk of bias
Annualized spontaneous Bleeding Rate (AsBR)
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
no estimate extracted1 study · 119 participantsModerate
Downgraded: risk of bias
Proportion with zero bleeds
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
RR 8.1 [2.04, 32.11]1 study · 119 participantsModerate
Downgraded: risk of bias
Change in total scores, Haem‐A‐QoL Scale from: 0 (better) to 100
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
no estimate extracted1 study · 103 participantsLow
Downgraded: risk of bias
All adverse events
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
RR 1.74 [1.21, 2.5]1 study · 119 participantsModerate
Downgraded: risk of bias
Adverse events ‐ Serious adverse events
Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy
RR 0.5 [0.15, 1.63]1 study · 120 participantsModerate
Downgraded: risk of bias