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Aggrenox To Treat Acute Covid-19

A Randomized Controlled Trial to Evaluate the Outcomes With Aggrenox in Patients With SARS-CoV-2 Infection

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04410328
Acronym
ATTAC-19
Enrollment
98
Registered
2020-06-01
Start date
2020-10-21
Completion date
2021-10-15
Last updated
2025-02-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Covid19

Keywords

COVID-19, SARS-CoV, Aggrenox, Dipyridamole, Aspirin

Brief summary

The purpose of this study is to explore the efficacy of Aggrenox in patients with SARS-CoV-2 infection with symptoms consistent with COVID-19. An anticipated total of 132 participants will be randomly divided almost equally into 2 groups: one group will receive Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally along with the standard of care and the other group with receive the standard of care only but no Dipyridamole ER 200mg/ Aspirin 25mg. Participants will be screened, enrolled, receive treatment, and followed for 28 days. The clinical and laboratory outcomes of all the participants enrolled in the study will be evaluated at the end of the study to explore if there is any difference in the outcomes between 2 groups.

Detailed description

Purpose/Specific Aims: The purpose of this study is to explore the efficacy of Aggrenox in patients with SARS-CoV-2 infection with symptoms consistent with COVID-19. Among 132 SARS-CoV-2 patients (66 patients in each randomized arm), we will determine the efficacy of Aggrenox on clinical outcomes. Hypotheses / Research Question(s) Compared to standard care, the addition of Aggrenox (Dipyridamole ER 200mg/ Aspirin 25mg), to standard care will result in improvement in the composite COVID ordinal scale at day 15. Additionally, combined Aggrenox (Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally), and standard care will reduce the need for ventilation, length of mechanical ventilation, hospital length of stay, ICU length of stay, decrease risk of thromboembolic complications and improve survival more than standard care alone in SARS-CoV-2 patients. Research Design and Methods Randomized design. Participants will be randomized 1:1 to Aggrenox or standard treatment. Arm 1: Active Comparator: (Aggrenox (Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally). Participants will receive Aggrenox (Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally), 2 times daily (FDA-recommended dose) starting on the day of enrollment for a total of 2 weeks + standard care. Arm 2: Standard care Comparator: Participants will receive standard care starting on the day of enrollment for a total of 2 weeks. The investigators will perform a randomized, 2-arm, open-label single-site pilot study to evaluate the effect of oral Aggrenox (Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally), on clinical outcomes in patients with SARS-CoV-2. In this research proposal, investigators will randomly assign 132 consenting participants with diagnosis of SARS-CoV-2 to two treatment groups: 1) Aggrenox (Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally) + standard care and 2) standard care alone. Participants will be screened, enrolled, receive treatment and followed for 28 days. The study aim and procedure will be explained to every eligible subject and informed consent will be obtained from interested subjects or authorized proxy to participate in the study. The investigators will collect demographic, clinical, laboratory and radiological data. The patients would be followed daily for 2 weeks after enrollment while the patient is in the hospital and once discharged, they will be called every 3rd day to follow up on the symptoms.

Interventions

DRUGDipyridamole ER 200mg/ Aspirin 25mg orally/enterally AND Standard of care

Participants in the experimental group will receive Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally (if they have a feeding tube), 2 times daily starting on the day of enrollment for a total of 2 weeks.

OTHERStandard of care

Participants will receive standard care starting on the day of enrollment for a total of 2 weeks. Standard of care treatment consist of an intravenous Remidesivir 200 mg loading dose and then 100 mg/daily for a total of 4 days for non-intubated patients and 10 days for intubated patients, intravenous/oral decadron 6 mg/daily for 10 days and prophylactic subcutaneous LMWH daily, started on the day of enrollment and for the duration of hospitalization. If the patients are discharged before 10 days, they are prescribed oral decadron 6 mg daily to complete the course of 10 days.

Sponsors

Boehringer Ingelheim
CollaboratorINDUSTRY
Rutgers, The State University of New Jersey
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Arm 1: Aggrenox plus standard care. Participants will receive Aggrenox (Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally), 2 times daily (FDA-recommended dose) starting on the day of enrollment for a total of 2 weeks. Arm 2: Standard care. Participants will receive standard care starting on the day of enrollment for a total of 2 weeks. The investigators will perform a randomized, 2-arm, open-label single-site pilot study to evaluate the effect of oral Aggrenox (Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally), on clinical outcomes in patients with SARS-CoV-2. In this research proposal, the investigators will randomly assign 132 consenting participants with diagnosis of SARS-CoV-2 to two treatment groups: 1) Aggrenox (Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally) + standard care and 2) standard care alone. Participants will be screened, enrolled, receive treatment and followed for 28 days.

Eligibility

Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age ≥18 years. 2. Hospitalization. 3. SARS-CoV-2 viral nucleic acid positive within 3 days. 4. Lab test result pending plus a high clinical suspicion for SARS-CoV-2 (fever and cough for ≤ 7 days, bilateral pulmonary infiltrates on imaging or new hypoxemia with spO2 ≤94% on room air or no alternative explanation for respiratory symptoms). 5. Willing and able to provide consent or by authorized proxy.

Exclusion criteria

1. Pregnancy. 2. G-6PD deficiency. 3. Use of antiplatelet agents including inhibitor of P2Y12 ADP platelet receptors, phosphodiesterase inhibitors, and Glycoprotein IIB/IIIA inhibitors. 4. On therapeutic anticoagulation with coumadin, heparin and direct oral anticoagulants. 5. Vasodilatory shock. 6. Patient with known ongoing angina, recent myocardial infarction and sub-valvular aortic stenosis. 7. Active gastric or duodenal ulcer or any bleeding disorder. 8. Hemoglobin \<9 mg/dL, platelet count of \<30,000 /mm3. 9. Acute respiratory infection for \>10 days. 10. Known allergy/hypersensitivity to Dipyridamole and/or Aspirin. 11. Severe hepatic or renal insufficiency. 12. Uncontrolled hypertension defined as systolic \> 180 mm Hg or diastolic \> 100 mm Hg. 13. Patients with known allergy to NSAIDs

Design outcomes

Primary

MeasureTime frameDescription
Covid (Coronavirus Disease-19) Ordinal Scale15 daysChange in composite COVID ordinal scale from day 1 to 14. Ordinal scale: 1) not hospitalized with resumption of normal activities; 2) not hospitalized, but unable to resume normal activities; 3) hospitalized, not requiring oxygen; 4) hospitalized, requiring oxygen; 5) hospitalized, requiring high-flow oxygen therapy, or noninvasive ventilation; 6) hospitalized, requiring invasive ventilation; 7) ventilation plus additional organ support such as pressors, renal replacement therapy and ECMO and 8) death. COVID Ordinal Scale ranges from 1 to 8, with score 1 on the scale corresponds to an ambulatory patient with minimal symptoms and score 8 on the scale corresponds to death.

Secondary

MeasureTime frameDescription
Inflammatory Marker Between Baseline and 7 DaysBaseline and 7 daysChange in marker D-dimer
COVID Ordinal Scale28 daysCOVID ordinal scale
Number of Participants Not Requiring Supplemental Oxygen28 daysnumber of participants who received supplemental oxygen or those with supplemental oxygen-free days
Mortality14 daysAll-cause mortality assessed on day 14.
ICU Stay28 daysNumber of participants admitted to ICU
Inflammatory MarkerBaseline and 7 daysIncrease in marker Ferritin
Invasive-ventilator28 daysNumber of participants who were invasive-ventilator free

Countries

United States

Participant flow

Participants by arm

ArmCount
Participants Receiving Dipyridamole and Aspirin
Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally plus standard care. Participants will receive Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally), 2 times daily starting on the day of enrollment for a total of 2 weeks. Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally AND Standard of care: Participants in the experimental group will receive Dipyridamole ER 200mg/ Aspirin 25mg orally/enterally (if they have a feeding tube), 2 times daily starting on the day of enrollment for a total of 2 weeks. Standard of care: Participants will receive standard care starting on the day of enrollment for a total of 2 weeks.
49
Participants Receiving Standard of Care
Participants will receive standard care starting on the day of enrollment for a total of 2 weeks. Standard of care: Participants will receive standard care starting on the day of enrollment for a total of 2 weeks.
49
Total98

Baseline characteristics

CharacteristicParticipants Receiving Dipyridamole and AspirinTotalParticipants Receiving Standard of Care
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
49 Participants98 Participants49 Participants
Age, Continuous57.5 years57 years56 years
Race/Ethnicity, Customized
Aboriginal/First Nations
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Black
9 Participants18 Participants9 Participants
Race/Ethnicity, Customized
East Asian
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Latin American
10 Participants20 Participants10 Participants
Race/Ethnicity, Customized
Mixed
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Other
2 Participants5 Participants3 Participants
Race/Ethnicity, Customized
South Asian
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Unknown
27 Participants52 Participants25 Participants
Race/Ethnicity, Customized
West Asian
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
White
1 Participants1 Participants0 Participants
Region of Enrollment
United States
49 participants98 participants49 participants
Sex: Female, Male
Female
31 Participants52 Participants21 Participants
Sex: Female, Male
Male
18 Participants46 Participants28 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
5 / 497 / 49
other
Total, other adverse events
0 / 490 / 49
serious
Total, serious adverse events
5 / 497 / 49

Outcome results

Primary

Covid (Coronavirus Disease-19) Ordinal Scale

Change in composite COVID ordinal scale from day 1 to 14. Ordinal scale: 1) not hospitalized with resumption of normal activities; 2) not hospitalized, but unable to resume normal activities; 3) hospitalized, not requiring oxygen; 4) hospitalized, requiring oxygen; 5) hospitalized, requiring high-flow oxygen therapy, or noninvasive ventilation; 6) hospitalized, requiring invasive ventilation; 7) ventilation plus additional organ support such as pressors, renal replacement therapy and ECMO and 8) death. COVID Ordinal Scale ranges from 1 to 8, with score 1 on the scale corresponds to an ambulatory patient with minimal symptoms and score 8 on the scale corresponds to death.

Time frame: 15 days

ArmMeasureValue (MEDIAN)Dispersion
Participants Receiving Dipyridamole and AspirinCovid (Coronavirus Disease-19) Ordinal Scale2.3 score on a scaleStandard Deviation 1.8
Participants Receiving Standard of CareCovid (Coronavirus Disease-19) Ordinal Scale2.1 score on a scaleStandard Deviation 2
Secondary

COVID Ordinal Scale

COVID ordinal scale

Time frame: 28 days

ArmMeasureValue (MEDIAN)
Participants Receiving Dipyridamole and AspirinCOVID Ordinal Scale3 scores on a scale
Participants Receiving Standard of CareCOVID Ordinal Scale3 scores on a scale
Secondary

ICU Stay

Number of participants admitted to ICU

Time frame: 28 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Participants Receiving Dipyridamole and AspirinICU Stay5 Participants
Participants Receiving Standard of CareICU Stay7 Participants
Secondary

Inflammatory Marker

Increase in marker C-reactive protein

Time frame: Baseline and 7 days

ArmMeasureValue (MEDIAN)
Participants Receiving Dipyridamole and AspirinInflammatory Marker92 ug/L
Participants Receiving Standard of CareInflammatory Marker165 ug/L
Secondary

Inflammatory Marker

Increase in marker Ferritin

Time frame: Baseline and 7 days

ArmMeasureValue (MEDIAN)
Participants Receiving Dipyridamole and AspirinInflammatory Marker652.5 ug/L
Participants Receiving Standard of CareInflammatory Marker381 ug/L
Secondary

Inflammatory Marker Between Baseline and 7 Days

Change in marker D-dimer

Time frame: Baseline and 7 days

ArmMeasureValue (MEDIAN)
Participants Receiving Dipyridamole and AspirinInflammatory Marker Between Baseline and 7 Days-197.5 ng/mL
Participants Receiving Standard of CareInflammatory Marker Between Baseline and 7 Days114 ng/mL
Secondary

Invasive-ventilator

Number of participants who were invasive-ventilator free

Time frame: 28 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Participants Receiving Dipyridamole and AspirinInvasive-ventilator4 Participants
Participants Receiving Standard of CareInvasive-ventilator5 Participants
Secondary

Mortality

All-cause mortality assessed on day 28.

Time frame: 28 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Participants Receiving Dipyridamole and AspirinMortality3 Participants
Participants Receiving Standard of CareMortality5 Participants
Secondary

Mortality

All-cause mortality assessed on day 14.

Time frame: 14 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Participants Receiving Dipyridamole and AspirinMortality2 Participants
Participants Receiving Standard of CareMortality2 Participants
Secondary

Number of Participants Not Requiring Supplemental Oxygen

number of participants who received supplemental oxygen or those with supplemental oxygen-free days

Time frame: 28 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Participants Receiving Dipyridamole and AspirinNumber of Participants Not Requiring Supplemental Oxygen45 Participants
Participants Receiving Standard of CareNumber of Participants Not Requiring Supplemental Oxygen43 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026