Sipavibart: meta-analysis of COVID-19 studies

Meta-analysis of sipavibart COVID-19 studies. mAb use may create new variants that spread globally1-3, and may be associated with increased risk of autoimmune disease4, prolonged viral loads, clinical deterioration, and immune escape2,5-9.
0 0.5 1 1.5+ All studies -132% 2 2K Improvement, Studies, Patients Relative Risk Mortality -132% 2 2K Cases 33% 1 116 RCTs -132% 2 2K RCT mortality -132% 2 2K Peer-reviewed -124% 1 2K Prophylaxis -132% 2 2K Sipavibart for COVID-19 c19early.org June 2026 Favorssipavibart Favorscontrol
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ NOVELLA AstraZen.. (DB RCT) -267% 3.67 [0.18-74.2] death 2/87 0/29 Improvement, RR [CI] Treatment Control SUPERNOVA Haidar (DB RCT) -124% 2.24 [0.95-5.25] death 40/1,671 6/561 Tau​2 = 0.00, I​2 = 0.0%, p = 0.044 Prophylaxis -132% 2.32 [1.02-5.27] 42/1,758 6/590 132% higher risk All studies -132% 2.32 [1.02-5.27] 42/1,758 6/590 132% higher risk 2 sipavibart COVID-19 studies c19early.org June 2026 Tau​2 = 0.00, I​2 = 0.0%, p = 0.044 Effect extraction pre-specified(most serious outcome) Favors sipavibart Favors control 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ NOVELLA AstraZen.. (DB RCT) -267% 3.67 [0.18-74.2] 2/87 0/29 Improvement, RR [CI] Treatment Control SUPERNOVA Haidar (DB RCT) -124% 2.24 [0.95-5.25] 40/1,671 6/561 Tau​2 = 0.00, I​2 = 0.0%, p = 0.044 Prophylaxis -132% 2.32 [1.02-5.27] 42/1,758 6/590 132% higher risk All studies -132% 2.32 [1.02-5.27] 42/1,758 6/590 132% higher risk 2 sipavibart COVID-19 mortality results c19early.org June 2026 Tau​2 = 0.00, I​2 = 0.0%, p = 0.044 Favors sipavibart Favors control 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ NOVELLA AstraZen.. (DB RCT) 33% 0.67 [0.13-3.45] symp. case 4/87 2/29 Improvement, RR [CI] Treatment Control Tau​2 = 0.00, I​2 = 0.0%, p = 0.64 Prophylaxis 33% 0.67 [0.13-3.45] 4/87 2/29 33% lower risk All studies 33% 0.67 [0.13-3.45] 4/87 2/29 33% lower risk 1 sipavibart COVID-19 case result c19early.org June 2026 Tau​2 = 0.00, I​2 = 0.0%, p = 0.64 Favors sipavibart Favors control 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ NOVELLA AstraZen.. (DB RCT) -267% 3.67 [0.18-74.2] death 2/87 0/29 Improvement, RR [CI] Treatment Control SUPERNOVA Haidar (DB RCT) -124% 2.24 [0.95-5.25] death 40/1,671 6/561 Tau​2 = 0.00, I​2 = 0.0%, p = 0.044 Prophylaxis -132% 2.32 [1.02-5.27] 42/1,758 6/590 132% higher risk All studies -132% 2.32 [1.02-5.27] 42/1,758 6/590 132% higher risk 2 sipavibart COVID-19 Randomized Controlled Trials c19early.org June 2026 Tau​2 = 0.00, I​2 = 0.0%, p = 0.044 Effect extraction pre-specified(most serious outcome) Favors sipavibart Favors control 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ NOVELLA AstraZen.. (DB RCT) -267% 3.67 [0.18-74.2] 2/87 0/29 Improvement, RR [CI] Treatment Control SUPERNOVA Haidar (DB RCT) -124% 2.24 [0.95-5.25] 40/1,671 6/561 Tau​2 = 0.00, I​2 = 0.0%, p = 0.044 Prophylaxis -132% 2.32 [1.02-5.27] 42/1,758 6/590 132% higher risk All studies -132% 2.32 [1.02-5.27] 42/1,758 6/590 132% higher risk 2 sipavibart COVID-19 RCT mortality results c19early.org June 2026 Tau​2 = 0.00, I​2 = 0.0%, p = 0.044 Favors sipavibart Favors control 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ SUPERNOVA Haidar (DB RCT) -124% 2.24 [0.95-5.25] death 40/1,671 6/561 Improvement, RR [CI] Treatment Control Tau​2 = 0.00, I​2 = 0.0%, p = 0.064 Prophylaxis -124% 2.24 [0.95-5.25] 40/1,671 6/561 124% higher risk All studies -124% 2.24 [0.95-5.25] 40/1,671 6/561 124% higher risk 1 sipavibart COVID-19 peer reviewed studies c19early.org June 2026 Tau​2 = 0.00, I​2 = 0.0%, p = 0.064 Effect extraction pre-specified(most serious outcome) Favors sipavibart Favors control 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ NOVELLA AstraZen.. (DB RCT) -267% 3.67 [0.18-74.2] death 2/87 0/29 Improvement, RR [CI] Treatment Control NOVELLA AstraZen.. (DB RCT) 33% 0.67 [0.13-3.45] symp. case 4/87 2/29 SUPERNOVA Haidar (DB RCT) -124% 2.24 [0.95-5.25] death 40/1,671 6/561 SUPERNOVA Haidar (DB RCT) -236% 3.36 [0.79-14.3] death 20/1,671 2/561 Sipavibart COVID-19 outcomes c19early.org June 2026 Favors sipavibart Favors control
References