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COVID-19Phase 2NCT04466670

Hemostasis in COVID-19: an Adaptive Clinical Trial

A Phase 2 study testing acetylsalicylic acid and Unfractionated heparin nebulized in people with COVID-19, run by University of Sao Paulo General Hospital at 1 site in Brazil.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Hypercoagulability has been demonstrated in COVID-19, leading to respiratory distress and increased mortality. This is an adaptive clinical trial to compare the efficacy and safety of two experimental strategies in patients with COVID-19: ASA or inhaled UFH associated with standard VTE prophylaxis. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
COVID-19
What is being tested?
acetylsalicylic acid and Unfractionated heparin nebulized
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
379 participants
Where
1 siteBrazil
Study dates
11 Jul 2020to 30 May 2022
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adult ≥18 years of age at time of enrollment
  • Subjects with a positive COVID-19 diagnosis by RT-PCR or serologic testing
  • Subject (or legally authorized representative) must be willing, understanding and able to provide written informed consent.
  • Only at phase 2:
  • onset of symptoms must not exceed 4 weeks
  • ICU patients
  • PaO2 to FiO2 ratio < 200

Who cannot join

  • General
  • Indications for therapeutic anticoagulation
  • History of chronic lung disease oxygen dependent
  • Pregnancy
  • Death considered imminent and inevitable within 24 hours
  • Patients under exclusive palliative care
Show all 21Show fewer
  • Participation in another trial of investigational drug
  • Body weight < 40 Kg
  • Total bilirubin > 20 mg/dL
  • Severe active bleeding
  • Persistent GI bleeding
  • Known allergy to UFH or LMWH
  • History of heparin-induced thrombocytopenia (HIT) within the past 6 months
  • Exclusion criteria at phase 1
  • Platelet count < 25,000/mm3
  • Bacterial endocarditis
  • Exclusion criteria at phase 2
  • Platelet count < 50,000/mm3
  • History of surgery in the last 30 days
  • Intervention A: allergy to ASA and long-term use of antiplatelet drug
  • Intervention B: inhaled nitric oxide use

Trial locations and contacts

1 site in 1 country.

Brazil1 site, 1 recruiting
  • Vanderson Rocha

    São Paulo, 05403-000

    Vanderson Rocha, MD.PhD, +55-11-26617575, vanderson.rocha@hc.fm.usp.br

    Yeh-Li Ho, MD.PhD, +55-11-26616045, ho.yeh@hc.fm.usp.br

    Recruiting

Other trials in Brazil

About this study

Official title: Dynamics of Hemostatic Parameters in COVID-19 and Comparison of Intervention Strategies Through Adaptive Clinical Trial

Hypercoagulability has been demonstrated in COVID-19, leading to respiratory distress and increased mortality. This is an adaptive clinical trial to compare the efficacy and safety of two experimental strategies in patients with COVID-19: ASA or inhaled UFH associated with standard VTE prophylaxis.

Conditions
COVID-19
Being tested
acetylsalicylic acid, Unfractionated heparin nebulized
Keywords
SARS-CoV-2, Thrombosis, Coagulopathy, Anticoagulation, Respiratory failure
Medical subject headings
COVID-19, Thrombosis, Hemostatic Disorders, Respiratory Insufficiency

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • acetylsalicylic acidDrug

    Also called aspirin

    acetylsalicylic acid (ASA) 100 mg daily PO up to 14 days OR arterial oxygen saturation greater than or equal to 92% on room air OR PaO2 to FiO2 ratio greater than 200 for 2 consecutive days, whichever is first.

  • Unfractionated heparin nebulizedDrug

    unfractionated heparin - 25,000 U/ 5 ml nebulized inhalation every 6 hours up to 14 days OR arterial oxygen saturation greater than or equal to 92% on room air OR PaO2 to FiO2 ratio greater than 200 for 2 consecutive days, whichever is first.

Study groups in NCT04466670
Study groupRoleWhat they receive
phase 1No interventionObservational arm
phase 2AExperimentalAcetylsalicylic acid
Receives: Drug: acetylsalicylic acid
phase 2BExperimentalinhaled unfractionated heparin
Receives: Drug: Unfractionated heparin nebulized
PlaceboPlacebo comparatorPlacebo arm for Phase 2A
Receives: Drug: acetylsalicylic acid

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Hospital discharge - alive / death

    Number of COVID-19 positive patients who are alive within 30 days of symptoms onset

    Measured: 30 days

Secondary outcomes (3)
  1. Length of mechanical ventilation free days

    Comparison of length of mechanical ventilation free days between each treatment arm

    Measured: 30 days

  2. Length of renal replacement therapy free days

    Comparison of length of renal replacement therapy free days between each treatment arm

    Measured: 30 days

  3. Number of documented venous thromboembolism or arterial thrombosis

    Comparison of number of thrombosis events between each treatment arm.

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Jul 2020
  2. Study start11 Jul 2020
  3. Primary completion30 Dec 2021 (estimated)
  4. Study completion30 May 2022 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
379 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04466670
Sponsor's protocol ID
33788820.9.0000.0068
Status last verified
Jun 2021
First submitted
8 Jul 2020
Last updated
9 Jun 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Schulman S, Kearon C; Subcommittee on Control of Anticoagulation of the Scientific and Standardization Committee of the International Society on Thrombosis and Haemostasis. Definition of major bleeding in clinical investigations of antihemostatic medicinal products in non-surgical patients. J Thromb Haemost. 2005 Apr;3(4):692-4. doi: 10.1111/j.1538-7836.2005.01204.x.

    PubMed 15842354
  • Huang C, Wang Y, Li X, Ren L, Zhao J, Hu Y, Zhang L, Fan G, Xu J, Gu X, Cheng Z, Yu T, Xia J, Wei Y, Wu W, Xie X, Yin W, Li H, Liu M, Xiao Y, Gao H, Guo L, Xie J, Wang G, Jiang R, Gao Z, Jin Q, Wang J, Cao B. Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China. Lancet. 2020 Feb 15;395(10223):497-506. doi: 10.1016/S0140-6736(20)30183-5. Epub 2020 Jan 24.

    PubMed 31986264
  • Fu L, Wang B, Yuan T, Chen X, Ao Y, Fitzpatrick T, Li P, Zhou Y, Lin YF, Duan Q, Luo G, Fan S, Lu Y, Feng A, Zhan Y, Liang B, Cai W, Zhang L, Du X, Li L, Shu Y, Zou H. Clinical characteristics of coronavirus disease 2019 (COVID-19) in China: A systematic review and meta-analysis. J Infect. 2020 Jun;80(6):656-665. doi: 10.1016/j.jinf.2020.03.041. Epub 2020 Apr 10.

    PubMed 32283155
  • Arachchillage DRJ, Laffan M. Abnormal coagulation parameters are associated with poor prognosis in patients with novel coronavirus pneumonia. J Thromb Haemost. 2020 May;18(5):1233-1234. doi: 10.1111/jth.14820. No abstract available.

    PubMed 32291954
  • Lillicrap D. Disseminated intravascular coagulation in patients with 2019-nCoV pneumonia. J Thromb Haemost. 2020 Apr;18(4):786-787. doi: 10.1111/jth.14781. Epub 2020 Mar 24. No abstract available.

    PubMed 32212240
  • Lippi G, Favaloro EJ. D-dimer is Associated with Severity of Coronavirus Disease 2019: A Pooled Analysis. Thromb Haemost. 2020 May;120(5):876-878. doi: 10.1055/s-0040-1709650. Epub 2020 Apr 3. No abstract available.

    PubMed 32246450
  • Feng Y, Ling Y, Bai T, Xie Y, Huang J, Li J, Xiong W, Yang D, Chen R, Lu F, Lu Y, Liu X, Chen Y, Li X, Li Y, Summah HD, Lin H, Yan J, Zhou M, Lu H, Qu J. COVID-19 with Different Severities: A Multicenter Study of Clinical Features. Am J Respir Crit Care Med. 2020 Jun 1;201(11):1380-1388. doi: 10.1164/rccm.202002-0445OC.

    PubMed 32275452
  • Cui S, Chen S, Li X, Liu S, Wang F. Prevalence of venous thromboembolism in patients with severe novel coronavirus pneumonia. J Thromb Haemost. 2020 Jun;18(6):1421-1424. doi: 10.1111/jth.14830. Epub 2020 May 6.

    PubMed 32271988
  • Klok FA, Kruip MJHA, van der Meer NJM, Arbous MS, Gommers DAMPJ, Kant KM, Kaptein FHJ, van Paassen J, Stals MAM, Huisman MV, Endeman H. Incidence of thrombotic complications in critically ill ICU patients with COVID-19. Thromb Res. 2020 Jul;191:145-147. doi: 10.1016/j.thromres.2020.04.013. Epub 2020 Apr 10.

    PubMed 32291094
  • Helms J, Tacquard C, Severac F, Leonard-Lorant I, Ohana M, Delabranche X, Merdji H, Clere-Jehl R, Schenck M, Fagot Gandet F, Fafi-Kremer S, Castelain V, Schneider F, Grunebaum L, Angles-Cano E, Sattler L, Mertes PM, Meziani F; CRICS TRIGGERSEP Group (Clinical Research in Intensive Care and Sepsis Trial Group for Global Evaluation and Research in Sepsis). High risk of thrombosis in patients with severe SARS-CoV-2 infection: a multicenter prospective cohort study. Intensive Care Med. 2020 Jun;46(6):1089-1098. doi: 10.1007/s00134-020-06062-x. Epub 2020 May 4.

    PubMed 32367170
  • Lodigiani C, Iapichino G, Carenzo L, Cecconi M, Ferrazzi P, Sebastian T, Kucher N, Studt JD, Sacco C, Bertuzzi A, Sandri MT, Barco S; Humanitas COVID-19 Task Force. Venous and arterial thromboembolic complications in COVID-19 patients admitted to an academic hospital in Milan, Italy. Thromb Res. 2020 Jul;191:9-14. doi: 10.1016/j.thromres.2020.04.024. Epub 2020 Apr 23.

    PubMed 32353746
  • Middeldorp S, Coppens M, van Haaps TF, Foppen M, Vlaar AP, Muller MCA, Bouman CCS, Beenen LFM, Kootte RS, Heijmans J, Smits LP, Bonta PI, van Es N. Incidence of venous thromboembolism in hospitalized patients with COVID-19. J Thromb Haemost. 2020 Aug;18(8):1995-2002. doi: 10.1111/jth.14888. Epub 2020 Jul 27.

    PubMed 32369666
  • Llitjos JF, Leclerc M, Chochois C, Monsallier JM, Ramakers M, Auvray M, Merouani K. High incidence of venous thromboembolic events in anticoagulated severe COVID-19 patients. J Thromb Haemost. 2020 Jul;18(7):1743-1746. doi: 10.1111/jth.14869. Epub 2020 May 27.

    PubMed 32320517
  • Gralinski LE, Bankhead A 3rd, Jeng S, Menachery VD, Proll S, Belisle SE, Matzke M, Webb-Robertson BJ, Luna ML, Shukla AK, Ferris MT, Bolles M, Chang J, Aicher L, Waters KM, Smith RD, Metz TO, Law GL, Katze MG, McWeeney S, Baric RS. Mechanisms of severe acute respiratory syndrome coronavirus-induced acute lung injury. mBio. 2013 Aug 6;4(4):e00271-13. doi: 10.1128/mBio.00271-13.

    PubMed 23919993
  • Walls AC, Park YJ, Tortorici MA, Wall A, McGuire AT, Veesler D. Structure, Function, and Antigenicity of the SARS-CoV-2 Spike Glycoprotein. Cell. 2020 Apr 16;181(2):281-292.e6. doi: 10.1016/j.cell.2020.02.058. Epub 2020 Mar 9.

    PubMed 32155444

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing acetylsalicylic acid and Unfractionated heparin nebulized in people with COVID-19, run by University of Sao Paulo General Hospital at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 21 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 9 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Hospital discharge - alive / death (time frame: 30 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04466670, which also lists 37 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Jun 2021.

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