Table 2.

Risk-of-bias assessment

Trial name/NCT (phase)Gene therapy (prior names)1. Study question2. Eligibility criteria and study population3. Study participants representative of clinical populations of interest4. All eligible participants enrolled5. Sample size6. Intervention clearly described7. Outcome measures clearly described, valid, and reliable8. Blinding of outcome assessors9. Follow-up rate10. Statistical analysis11. Multiple outcome measures12. Group-level interventions and individual-level outcome effortsQuality rating
HA 
Alta/NCT03061201 (1/2) Giroctocogene fitelparvovec (PF-07055480/SB-525) NR NR NA Fair 
GENEr8-1/NCT02576795 (1/2) Valoctocogene roxaparvovec (BMN-270) NR NR NR NR Fair 
GENEr8-1/NCT03370913 (3) Valoctocogene roxaparvovec (BMN-270) NR NR NR Good 
NCT03003533/NCT03432520 (1/2) Dirloctocogene samoparvovec (SPK-8011) NR NR NA Good 
NCT03734588 (1/2) SPK-8016 NR NR NR NA Fair 
NCT03370172 (1/2) TAK-754 NR NR NR NR NR Poor 
NCT03588299 (1/2) BAY 2599023 (AAVhu37.hFVIIIco) NR NR NR NA Poor 
NCT03001830GO-8 (1/2) GO-8 (AAV8-HLP-hFVIII-V3) NR NR NA Good 
HB 
BENEGENE-2/NCT02484092 (1/2) Fidanacogene elaparvovec (SPK-9001) NR NA Good 
BENEGENE-2/NCT03861273 (3) Fidanacogene elaparvovec (SPK-9001) NR NA Good 
B-LIEVE/NCT05164471 (1/2) Verbrinacogene setparvovec (FLT180a) NR NR NR NR NR NA Poor 
B-AMAZE/NCT03369444 (1/2) Verbrinacogene setparvovec (FLT180a) NR NR NR NR Good 
NCT02396342 (1/2) AMT-060 CD NA Good 
HOPE-B/NCT03569891 (2b) Etranacogene dezaparvovec (AMT-061) NR NR NR NA Fair 
HOPE-B/NCT03569891 (3) Etranacogene dezaparvovec (AMT-061) NR Good 
NCT01687608 (1/2) BAX335 NR CD NR NA Good 
NCT00979238 (1) scAAV2/8-LP1-hFIXco NR NR NR Fair 
101HEMB01/NCT02618915 (1/2) DTX101 NR NR NA Good 
NCT04135300 (1) BBM-H901 NR NR NR NR NR NR Poor 
NCT00515710 (1/2) AAV2-hFIX16 NR NR NA Fair 
Trial name/NCT (phase)Gene therapy (prior names)1. Study question2. Eligibility criteria and study population3. Study participants representative of clinical populations of interest4. All eligible participants enrolled5. Sample size6. Intervention clearly described7. Outcome measures clearly described, valid, and reliable8. Blinding of outcome assessors9. Follow-up rate10. Statistical analysis11. Multiple outcome measures12. Group-level interventions and individual-level outcome effortsQuality rating
HA 
Alta/NCT03061201 (1/2) Giroctocogene fitelparvovec (PF-07055480/SB-525) NR NR NA Fair 
GENEr8-1/NCT02576795 (1/2) Valoctocogene roxaparvovec (BMN-270) NR NR NR NR Fair 
GENEr8-1/NCT03370913 (3) Valoctocogene roxaparvovec (BMN-270) NR NR NR Good 
NCT03003533/NCT03432520 (1/2) Dirloctocogene samoparvovec (SPK-8011) NR NR NA Good 
NCT03734588 (1/2) SPK-8016 NR NR NR NA Fair 
NCT03370172 (1/2) TAK-754 NR NR NR NR NR Poor 
NCT03588299 (1/2) BAY 2599023 (AAVhu37.hFVIIIco) NR NR NR NA Poor 
NCT03001830GO-8 (1/2) GO-8 (AAV8-HLP-hFVIII-V3) NR NR NA Good 
HB 
BENEGENE-2/NCT02484092 (1/2) Fidanacogene elaparvovec (SPK-9001) NR NA Good 
BENEGENE-2/NCT03861273 (3) Fidanacogene elaparvovec (SPK-9001) NR NA Good 
B-LIEVE/NCT05164471 (1/2) Verbrinacogene setparvovec (FLT180a) NR NR NR NR NR NA Poor 
B-AMAZE/NCT03369444 (1/2) Verbrinacogene setparvovec (FLT180a) NR NR NR NR Good 
NCT02396342 (1/2) AMT-060 CD NA Good 
HOPE-B/NCT03569891 (2b) Etranacogene dezaparvovec (AMT-061) NR NR NR NA Fair 
HOPE-B/NCT03569891 (3) Etranacogene dezaparvovec (AMT-061) NR Good 
NCT01687608 (1/2) BAX335 NR CD NR NA Good 
NCT00979238 (1) scAAV2/8-LP1-hFIXco NR NR NR Fair 
101HEMB01/NCT02618915 (1/2) DTX101 NR NR NA Good 
NCT04135300 (1) BBM-H901 NR NR NR NR NR NR Poor 
NCT00515710 (1/2) AAV2-hFIX16 NR NR NA Fair 

CD, cannot determine; N, no; NA, not applicable; NCT, National Clinical Trial; NR, not reported; Y, yes.

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