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NCT04447131
Effect of COVID-19 on Platelet Aggregation
trial testing venipuncture in peripheral vein in COVID-19 in 120 participants. Completed in 27 November 2023.
30 June 2020
Quick facts
| Lead sponsor | University of Sao Paulo |
|---|---|
| Status | Completed |
| Study type | OBSERVATIONAL |
| Enrollment | 120 |
| Start date | 29 April 2020 |
| Primary completion | 30 June 2020 |
| Estimated completion | 27 November 2023 |
| Sites | 2 locations across Brazil |
Drugs / interventions tested
- venipuncture in peripheral vein
Conditions studied
- COVID-19 — all drugs for COVID-19 →
- SARS-CoV-2 — all drugs for SARS-CoV-2 →
Sponsor
University of Sao Paulo
Who can join
18 and older, any sex, with COVID-19 or SARS-CoV-2. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
This is a mechanistic, observational, prospective, case and control study, to compare platelet aggregation, analyzed by Multiplate-ADP, in hospitalized patients diagnosed with COVID-19 versus healthy controls. Thus will be included 60 patients who present with respiratory symptoms within 72 hours of hospitalization and confirmation of the diagnosis of COVID-19 by laboratory method (RT -PCR and / or positive serology for SARS-CoV-2 - COVID group); this group will be compared to 60 healthy individuals (asymptomatic and with negative SARS-CoV-2 serology), matched by sex and age to the previous group.
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
-
Platelet Reactivity and Coagulation Markers in Patients with COVID-19.
Bertolin AJ, Dalçóquio TF, Salsoso R, de M Furtado RH, et al · · 2021 · cited 26× · PMID 34086266 · DOI 10.1007/s12325-021-01803-w
Verify or expand the search:
- PubMed search for NCT04447131
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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Other University of Sao Paulo trials
Trials by the same sponsor.
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT04447131 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by University of Sao Paulo
- Last refreshed: 25 April 2025
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04447131.
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