Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 18 and up

Using troxerutin to prevent blood clots in COVID-19 patients

Official title: A Study of the Efficacy of Troxerutin in Preventing Thrombotic Events in COVID-19 Patients

Run by Westlake University · NCT06355258 · Data updated 2026-11-12

This study is testing if troxerutin can help prevent blood clots in people with COVID-19, whether their symptoms are mild or severe.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment80 (estimated)
SponsorWestlake University
Academic / other
Locations1 site (Shaoxing, Zhejiang)
StatusRecruiting
StartedDecember 15, 2023
Main results expectedDecember 2024
Study endsMarch 2025
Registry record updatedNovember 12, 2024
Trial IDNCT06355258 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adult patients aged 18 and above who have tested positive for COVID-19, either with mild symptoms or severe pneumonia.

Probably not a fit

Patients who do not have a confirmed COVID-19 diagnosis or those with contraindications to troxerutin may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to evaluate the efficacy of troxerutin in preventing thrombotic events in patients diagnosed with COVID-19, both mild and severe. Participants will be randomly assigned to receive either troxerutin or a placebo daily for seven days, with follow-up visits on specific days for health assessments. The study will monitor the occurrence of thrombotic events, bleeding events, and any adverse effects associated with troxerutin. The goal is to determine if troxerutin can effectively reduce the risk of blood clots in these patients.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce the incidence of thrombotic events in COVID-19 patients, improving their overall health outcomes.

How similar studies have gone: While there have been studies exploring treatments for COVID-19-related coagulopathy, the specific use of troxerutin for this purpose is novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

As long as the patient meets all of the following conditions, adult patients aged 18 and above are eligible for admission:

► COVID-19 patients, defined as: positive RT-PCR (upper respiratory tract or lower respiratory tract) for SARS-CoV-2.

Mild COVID-19 patients are defined as:

Symptomatic patients meeting the case definition for COVID-19 without evidence of hypoxia or pneumonia. Common symptoms include fever, cough, fatigue, anorexia, dyspnea, and myalgia. Other nonspecific symptoms include sore throat, nasal congestion, headache, diarrhea, nausea/vomiting, and loss of smell/taste.

Severe COVID-19 patients are defined as:

Adolescents or adults with clinical signs of pneumonia (i.e., fever, cough, dyspnea, tachypnea) plus one of the following:

1. Respiratory rate ≥30 breaths/min
2. Severe respiratory distress
3. Oxygen saturation (SpO₂) ≤90% in room air
4. Progressive deterioration of clinical symptoms with lung imaging showing significant progression of lesions (\>50%) within 24 to 48 hours.

   * Written informed consent provided according to Chinese law (by the patient, legal guardian, or deferred consent in emergencies).

Exclusion Criteria:

Patients with any of the following conditions will be excluded from the study:

* Pregnant or lactating women.
* Postpartum (within 6 weeks).
* Extreme weight (100 kilograms).
* Clinical need for heparin therapy.
* Bleeding related to coagulation disorders, acute clinically significant bleeding, active gastrointestinal ulcers, or any organic lesions with high bleeding risk.
* Platelet count \<50 x 10\^9/L.
* Surgery within the last 15 days, or within 24 hours after spinal or epidural anesthesia.
* History of intracranial hemorrhage, large ischemic stroke, known intracranial malformation or tumor, acute infective endocarditis.
* Severe renal impairment (creatinine clearance \<30 mL/min).
* Iodine allergy.
* Long-term use of oxygen supplementation.
* Moribund patients or those expected to die during the current hospitalization due to underlying disease.
* Patients deprived of freedom and those undergoing institutional psychiatric care.
* Ward of the state or under guardianship.
* Participation in other anticoagulant intervention studies.

Where it's running

  • Shaoxing central hospital
    Shaoxing, Zhejiang, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.