NCT04391179

Brief Summary

The most severe manifestations of COVID-19 include respiratory failure, coagulation problems, and death. Inflammation and blood clotting are believed to play an important role in these manifestations. Research in humans has shown that dipyridamole can reduce blood clotting. This research study is being conducted to learn whether 14 days of treatment with dipyridamole will reduce excessive blood clotting in COVID-19. This study will enroll participants with confirmed coronavirus (SARS-CoV)-2 infection that are admitted. Eligible participants will be randomized to receive dipyridamole or placebo for 14 days in the hospital. In addition, data will be collected from the medical record, and there will also be blood draws during the hospitalization.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
99

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started May 2020

Shorter than P25 for phase_2

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 15, 2020

Completed
3 days until next milestone

First Posted

Study publicly available on registry

May 18, 2020

Completed
13 days until next milestone

Study Start

First participant enrolled

May 31, 2020

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 22, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 22, 2021

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

March 24, 2022

Completed
Last Updated

March 24, 2022

Status Verified

March 1, 2022

Enrollment Period

9 months

First QC Date

May 15, 2020

Results QC Date

March 4, 2022

Last Update Submit

March 18, 2022

Conditions

Keywords

Oxygen

Outcome Measures

Primary Outcomes (2)

  • Percent Change in D-dimer

    average percent daily change in plasma D-dimer levels compared to baseline

    baseline, up to approximately 14 days after last study drug administration

  • Number of Participants With Wins at Each Level of a Hierarchical Composite Rank Score

    Compare each dipyridamole patient head to head against each placebo patient using a hierarchical composite rank score 1. death 2. days on mechanical ventilation 3. dichotomized (yes/no) decrease in daily average SpO2/FiO2 of at least 50 units relative to day 1 at anytime during the observation period 4. cumulative sum of COVID ordinal score during study hospitalization. Ordinal scores could range 1-8. Levels 1 and 2 imply no hospitalization and 8 is the worst possible score (death); by definition, the subjects in the DICER study were hospitalized during the time period in which the study observed their ordinal scores.

    up to approximately 30 days after hospital discharge

Secondary Outcomes (5)

  • Days Alive and Free of Organ Support

    up to approximately 28 days after last study drug administration score

  • Individual Component of Composite Endpoint- Death

    up to approximately 30 days after hospital discharge

  • Individual Component of Composite Endpoint- Days on Mechanical Ventilation

    up to 14 days after study drug administration

  • Individual Component of Composite Endpoint- Sp02/Fi02 (as Shown by Participant Count)

    up to 14 days after study drug administration

  • Individual Component of Composite Endpoint- Cumulative Ordinal Score

    Hospitalization up to 14 days after study drug administration

Study Arms (2)

Dipyridamole 100 Milligram(mg)

EXPERIMENTAL

100 milligrams (mg) by mouth (PO) four times a day (QID)

Drug: Dipyridamole 100 Milligram(mg)

Placebo

PLACEBO COMPARATOR

Placebo given by mouth four times a day

Drug: Placebo oral tablet

Interventions

Drug will be given for 14 days while in the hospital.

Dipyridamole 100 Milligram(mg)

Placebo will be given for 14 days while in the hospital.

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Willing and able to provide informed consent prior to performing study procedures unless they have a legally authorized representative (LAR)
  • Confirmed coronavirus (SARS-CoV-2) infection
  • Currently hospitalized or anticipated hospitalization requiring supplemental oxygen

You may not qualify if:

  • In the opinion of at least two investigators, unlikely to survive for \>48 hours from screening
  • Concurrent enrollment in a clinical trial with a cytokine inhibitor (targeting interleukin-6 (IL-6), Interleukin-6 Receptor (IL-6R), IL-1, or Janus kinase). Use of remdesivir is permitted.
  • Currently on invasive mechanical ventilation.
  • Hypotension defined as systolic blood pressure \< 90 mmHg on two sequential readings at least 4 hours apart
  • Pregnant or breastfeeding
  • Concurrent dual antithrombotic therapy (aspirin or P2Y12 inhibitor plus anticoagulation to treat deep venous thrombosis or pulmonary embolism (single antiplatelet or anticoagulant agent at prophylaxis or therapeutic dose is permitted)
  • Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) greater than 5 times upper limit of normal, hemoglobin \< 8 grams per deciliter (g/dL), or platelets \<50,000 per cubic millimeter (mm3)
  • History of recent major bleeding, defined in accordance with the criteria of the International Society on Thrombosis and Hemostasis (ISTH).
  • Any physical examination findings and/or history of any illness that, in the opinion of the study investigator, might confound the results of the study or pose an additional risk to the patient by their participation in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Michigan

Ann Arbor, Michigan, 48109, United States

Location

Related Publications (1)

  • Fischer AL, Messer S, Riera R, Martimbianco ALC, Stegemann M, Estcourt LJ, Weibel S, Monsef I, Andreas M, Pacheco RL, Skoetz N. Antiplatelet agents for the treatment of adults with COVID-19. Cochrane Database Syst Rev. 2023 Jul 25;7(7):CD015078. doi: 10.1002/14651858.CD015078.

MeSH Terms

Conditions

Coronavirus InfectionsCOVID-19

Condition Hierarchy (Ancestors)

Coronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsVirus DiseasesInfectionsPneumonia, ViralPneumoniaRespiratory Tract InfectionsLung DiseasesRespiratory Tract Diseases

Results Point of Contact

Title
Jason Knight, MD, PhD
Organization
University of Michigan

Study Officials

  • Jason Knight, MD, PhD

    University of Michigan

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Internal Medicine

Study Record Dates

First Submitted

May 15, 2020

First Posted

May 18, 2020

Study Start

May 31, 2020

Primary Completion

February 22, 2021

Study Completion

February 22, 2021

Last Updated

March 24, 2022

Results First Posted

March 24, 2022

Record last verified: 2022-03

Data Sharing

IPD Sharing
Will not share

Locations