Trial ISRCTN59048638
Publication ERSul - Gonzalez-Ochoa AJ , Thromb Haemost (2021) (published paper)
Dates: 2020-06-05 to 2020-08-05
Funding: Private (Study independently initiated by lead researcher; partially funded by Alfasigma Mexico.)
Conflict of interest: Yes
Methods | |
RCT Blinding: Participants and outcome assessor | |
Location :
Single center / Mexico Follow-up duration (days): 26 | |
Inclusion criteria |
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Exclusion criteria |
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Interventions | |
Treatment
Sulodexide 500 LRU orally twice daily for two weeks. |
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Control
Placebo | |
Participants | |
Randomized participants : Sulodexide=157 Placebo=155 | |
Characteristics of participants N= 312 Mean age : NR 115 males Severity : Mild: n= 243/ Asymptomatic: n=0 | |
Primary outcome | |
In the register Current primary outcome measure as of 09/09/2020 (revised): The Clinical-Therapeutic response will be defined as the need for hospitalization, length of stay in hospital (days), need for oxygen support, length of need for oxygen support (days), and | |
In the report The primary endpoint was the need for hospital admission for clinical care. | |
Documents avalaible |
Protocol NR Statistical plan NR 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 published/pre-print article, the study registry was used in data extraction and assessment of risk of bias. There were no substantive differences in study procedures, population and interventions between the pre-print article and the registry. Mortality was specified as a primary outcome in the registry but reported as a secondary outcome in the report. The exclusion criteria, and other the primary and secondary outcomes were modified in the registry during the trial, with no details on why this was done. The study achieved its pre-stated sample size. 22% missing data due to COVID-19 negative test result and lost to follow-up; this was similar between groups. Data were analyzed using per-protocol analysis.
Quote: "Although initially an intention-to-treat analysis had been proposed, the inclusion of only confirmed COVID-19 patients and the exclusion of patients who had initiated the treatment but later reported a negative COVID-19 result led to us analysing variables according to a per-protocol principle." The study was updated on March 23rd, 2021, based on a published abstract in the Journal of Vascular Surgery On 29th of March,2021, this study was updated based on the published report in Thromb Haemost. |