Trial NCT04518410
Publication ACTIV-2/A5401 - Chew K, Nat Commun (2022) (published paper)
Dates: 2020-08-19 to 2020-11-15
Funding: Mixed (National Institute of Allergy and Infectious Diseases of the National Institutes of Health, US Dept. of Energy, NIH, Los Alamos National Laboratory, Eli Lilly.)
Conflict of interest: Yes
Methods | |
RCT Blinding: triple blinding | |
Location :
Multicenter / USA Follow-up duration (days): 168 | |
Inclusion criteria |
|
Exclusion criteria |
|
Interventions | |
Treatment
Bamlanivimab 7000 mg intravenously over 60 minutes |
|
Control
Placebo | |
Participants | |
Randomized participants : Placebo=48 Bamlanivimab =49 | |
Characteristics of participants N= 97 Mean age : NR 45 males Severity : Mild: n= 98/ Asymptomatic: n=0 Number of vaccinated participants: NR | |
Primary outcome | |
In the register 1) COVID-19 symptom duration (Phase 2) [ Time Frame: Up to Day 28 ]; 2) Quantification of SARS-CoV-2 RNA (Phase 2) [ Time Frame: Day 3, 7, 14 ]; 3) Proportion of participants with new adverse event (AE) ≥ Grade 3 (Phase 2) [ Time Frame: Thru Day 28 ]; | |
In the report 1) development of a Grade 3 or higher treatment emergent adverse event (TEAE) through 28 days; 2) detection (detectable versus undetectable)of SARS-CoV-2 RNA from NP swabs at days 3, 7, 14, 21, and 28; 3) duration of targeted COVID-19-associated symptoms from day 0. | |
Documents available |
Protocol Yes. In English Statistical plan Yes Data-sharing willing stated in the publication: Yes |
Risk of bias Overall The overall risk of bias reported in the table corresponds to the highest risk of bias for the outcomes assessed for the systematic review |
Some concerns |
General comment |
In addition to the pre-print article, the trial registry and the overall adaptive platform trial protocol and statistical analysis plan were used in data extraction and assessment of risk of bias. Supplementary materials referred to in the pre-print article were not available at time of extraction. There were minor differences between some primary outcomes in the article and the registry (an additional 28 day timepoint for RT-PCR in the article; additional 21 and 28 day timepoint for of detection (detectable versus undetectable) of SARS-CoV-2 RNA from NP swabs in the article; adverse events were only a phase 3 outcome in the registry); additional primary outcomes in the article were secondary outcomes in the registry. One participant analyzed in the intervention group was originally randomized to the 700mg versus placebo cohort in this platform study, but received 7000mg in error and was analyzed in the 7000mg bamlanivimab cohort. Recruitment to the trial (n = 97) of a 7000mg dose was terminated following outside evidence of no dose-response, and the protocol was adapted to assess a 700mg dose instead.
This study was updated on November 18th, 2022 with data extracted from the peer-reviewed report. |