ClinicalTrials.gg
Status unknownNCT02172833Updated Jan 1, 2015

Antibiotic-associated Coagulopathy

An observational study in Infection and Blood Coagulation Disorders, sponsored by National Taiwan University Hospital. Status unknown at 1 site in Taiwan. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2015-01-01.

Sponsored by National Taiwan University Hospital · Observational

The sponsor has not verified this record recently (last verified Dec 2014), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Case-control
Time perspective
Retrospective
Enrollment
500
Ages
20 Years and older
Sex
All
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Study summary

Over the past few decades, a good number of studies with regard to coagulopathy and increased bleeding tendency which is defined as macro- or microscopic hemorrhage, declination of hemoglobin level, thrombocytopenia, and hypoprothrombinemia potentially caused by the use of antibiotics through a variety of suggested mechanisms, including myelosuppression, immune-mediated destruction of thrombocytes and coagulation factors, and suppression of vitamin K epoxide reductase or vitamin K-dependent γ-glutamate carboxylase which may lead to inhibition of biosynthesis of coagulation factor II, VII, IX, and X, have been reported or published. Nevertheless, many of them are case-series studies or case reports with low level of evidence, and there have been no large-scale retrospective cohort studies regarding antibiotic-associated coagulopathy being published. Moreover, in addition to exposure to antibiotics, there are several risk factors, including severity of illness, hepatic or renal function, nutrition status, comorbidities such as cancer and hematologic disease, surgery or other invasive procedure, concomitant use of anticoagulants, NSAIDs, and salicylates, and age, which may exert influence on the function of the coagulation system as well. Therefore, the study aims to clarify the association between the use of antibiotics and the increase of bleeding tendency or the development of bleeding event and to identify possible risk factors of the increase of bleeding tendency or the development of bleeding event in patients receiving antibiotic treatment through the application of nested case-control design and the usage of both the National Health Insurance Research Database (NHIRD) and medical records in National Taiwan University Hospital during the time period from January, 1995 to December, 2013.

02

Conditions studied

  • Infection
  • Blood Coagulation Disorders
03

In context

Infections

6,702 studies on the registry are indexed under Infections; 801 are open to participants now.

This study's planned enrollment of 500 is above the median of 240 across 2,144 observational studies indexed under Infections.

Browse Infections studies →

Lead sponsor

National Taiwan University Hospital is the lead sponsor of 2,608 studies on the registry; 573 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 2 (18%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients aged older than 20 years old using antibiotics for more than 48 hours in the emergency department in National Taiwan University Hospital and in in LHID 2000, 2005, and 2010 cohort derived from National Health Insurance Research Database

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • patients aged older than 20 years old
  • using antibiotics for more than 48 hours in the emergency department

Exclusion criteria

Exclusion Criteria:

  • shift of antibiotic prescription in the ER
  • patients with hemorrhage -related diagnoses
  • non-temporally consecutive referral from the ER to the ward
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Study design

Observational model
Case-control
Time perspective
Retrospective
Enrollment
500 participants (estimated)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. development of any bleeding episodes as confirmed by ICD-9-CM code or use of vit. K1, fresh frozen plasma, or coagulation factors II, VII, XI, X

    Time frame: within 7 days post antibiotics use

07

Study locations

1 of 1 sites recruiting
  • National Taiwan University Hospital
    Taipei, 100, Taiwan
    Recruiting
08

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jan 2014 and a primary completion of Jul 2015. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 22, 2014
First posted
Jun 24, 2014
Start
Jan 2014
Primary completionEst.
Jul 2015
Last update
Jan 1, 2015
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 1, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02172833
Responsible party
Sponsor
First posted
Jun 24, 2014
Start date
Jan 2014
Primary completion
Jul 2015 (estimated)
Last update
Jan 1, 2015

Study contacts

Shu-Wen Lin, Pharm.D.
Contact
shuwenlin@ntu.edu.tw
+886-2-3366-8782
Shu-Wen Lin, Pharm.D.
principal investigator · National Taiwan University Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Dec 2014. You cannot join it, but the record below documents what was studied.

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