Hemostasis in COVID-19: an Adaptive Clinical Trial

NCT ID: NCT04466670

Last Updated: 2021-06-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

379 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-07-11

Study Completion Date

2022-05-30

Brief Summary

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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.

Detailed Description

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Conditions

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COVID-19

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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phase 1

Observational arm

Group Type NO_INTERVENTION

No interventions assigned to this group

phase 2A

Acetylsalicylic acid

Group Type EXPERIMENTAL

acetylsalicylic acid

Intervention Type DRUG

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.

phase 2B

inhaled unfractionated heparin

Group Type EXPERIMENTAL

Unfractionated heparin nebulized

Intervention Type DRUG

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.

Placebo

Placebo arm for Phase 2A

Group Type PLACEBO_COMPARATOR

acetylsalicylic acid

Intervention Type DRUG

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.

Interventions

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acetylsalicylic acid

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.

Intervention Type DRUG

Unfractionated heparin nebulized

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.

Intervention Type DRUG

Other Intervention Names

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aspirin

Eligibility Criteria

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Inclusion Criteria

* 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

Exclusion Criteria

1. 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
* 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

* Platelet count \< 25,000/mm3
* Bacterial endocarditis

* 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
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Sao Paulo General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Vanderson Geraldo Rocha

Full professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Vanderson Rocha

Role: PRINCIPAL_INVESTIGATOR

University of Sao Paulo General Hospital

Locations

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Vanderson Rocha

São Paulo, , Brazil

Site Status RECRUITING

Countries

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Brazil

Facility Contacts

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Vanderson Rocha, MD.PhD

Role: primary

+55-11-26617575

Yeh-Li Ho, MD.PhD

Role: backup

+55-11-26616045

References

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Other Identifiers

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33788820.9.0000.0068

Identifier Type: -

Identifier Source: org_study_id

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