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Anti-Xa Level With Thromboprophylactic Dosage Nadroparin in Critically Ill COVID-19 and Non-COVID-19 Patients

Evaluation of Anti-Xa Levels With Nadroparin as Thrombosis Prophylaxis in COVID-19 and Non-COVID-19 Patients Admitted at the ICU

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05926518
Acronym
NADRO
Enrollment
62
Registered
2023-07-03
Start date
2020-11-01
Completion date
2022-11-23
Last updated
2023-07-03

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

Conditions

Critical Illness, Therapeutic Drug Monitoring, Venous Thromboembolism

Brief summary

Primary objective The objective of this study is to compare anti-Xa levels obtained with a standard high dose thrombosis prophylaxis in COVID-19 intensive care-patients compared with anti-Xa levels obtained with a normal dose thrombosis prophylaxis in non-COVID-19 intensive care patients. Secondary objectives 1. To determine the incidence of anti Xa levels out of range of the established target anti Xa level in both groups. 2. To determine the influence of relevant co-variates on the anti-Xa level in the COVID-19 and non-COVID-19 group.

Interventions

PROCEDUREblood sampling

Blood sampling for the determination of anti-Xa peak levels 4 hours after administration of nadroparin sc.

Sponsors

Rijnstate Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* All COVID-19 patients \> 18 years admitted at the ICU using nadroparin in a high thrombosis prophylactic dosage of 1 dd 5700 IU or 2 dd 5700 IU sc * All medical non-COVID-19 patients admitted at the ICU using nadroparin in a standard prophylactic dosage of 1 dd 2850 IU sc. * Minimum estimated length of stay on the ICU of 4 days

Exclusion criteria

o (History of) Heparin Induced Thrombocytopenia and Thrombosis

Design outcomes

Primary

MeasureTime frameDescription
Evaluation of anti-Xa peak level2 yearsU/ml

Secondary

MeasureTime frameDescription
Percentage of anti-Xa levels within target range2 yearsAmount of levels within target range (in %)
Influence of covariates (nadroparin dosage, gender, age, weight, BMI, COVID-19, APACHE IV, vasopressor use, eGFR, fluid balance, CRP) on anti-Xa level2 yearsrelevant correlation

Countries

Netherlands

Outcome results

None listed

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