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ThrombosisPhase 1NCT00622115

Etude (Study) Phase I Enox - UnFractionated Heparin (UFH)

A Phase 1 study testing Enoxaparin in people with Thrombosis, run by Sanofi at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Primary objective: to characterize the pharmacokinetic and the pharmacodynamic profile after intravenous bolus injection of unfractionated heparin (UFH) after repeated sc 100 IU anti-Xa/kg (corresponding to 1 mg/kg) twice a day during 2.5 days (every 12±2hrs) administrations of enoxaparin in Caucasian healthy… Read more about this study

Who is it for?
Ages 40 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Thrombosis
What is being tested?
Enoxaparin
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
72 participants
Where
1 siteFrance
Study dates
Jul 2007to Nov 2007
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Caucasian
  • Male and female subjects, between 40 and 60 years of age
  • Body weight between 50 kg and 90 kg if male and between 40 and 80 kg if female with Body Mass Index (BMI) between 18 and 29 kg/m2
  • Health Status:
  • Certified as healthy by a comprehensive clinical assessment (detailed medical history and complete physical examination)
  • Subject with hypertension, hypo- or hyperthyroidism or dyslipidemia will be included if their concomitant pathology is well-controlled by treatment for at least one year
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  • Normal vital signs after 10 minutes resting in supine position:
  • 95 mmHg < systolic blood pressure (SBP) < 140 mmHg;
  • 45 mmHg < diastolic blood pressure (DBP) < 90 mmHg;
  • 40 bpm < heart rate < 100 bpm.
  • Normal 12-lead electrocardiogram (ECG); 120 ms < PR < 220 ms, QRS < 120 ms, QTc ≤ 430 ms for male, 450 ms for female or not considered as clinically significant by the investigator
  • Laboratory parameters within the normal range unless the Investigator considers an abnormality to be clinically irrelevant for healthy subjects; hepatic enzymes (aspartate amino-transferase or AST, alanine amino-transferase or ALT) should be strictly below the upper laboratory norm.
  • Platelets ≥ 150 000 / mm3
  • Mean corpuscular volume (MCV) and gamma glutamyl-transferase (GGT) should be strictly in the normal range of the laboratory
  • Activated partial thromboplastin time (aPTT) ratio should be comprised between 0.95 and 1.15
  • Estimated Creatinine clearance by Cockroft formula should be higher than 50 mL/min
  • Non smoker or smoking the equivalent or less than 5 cigarettes a day and able not to smoke during the study hospitalization
  • Normal gynecological examination no longer than 12 months before inclusion.
  • For female with childbearing potential using an effective contraception method (e.g. intra-uterine device, hormonal contraception, diaphragm and condom) except if postmenopausal for more than 12 months or sterilized for more than three months
  • Subject with coagulation test and blood count (including platelets) within the physiological ranges)
  • Regulations:
  • Having given written informed consent prior to any procedure related to the study
  • Covered by Health Insurance System and/or in compliance with the recommendations of National Law in force relating to biomedical research
  • Not under any administrative or legal supervision

Who cannot join

  • Medical history and clinical status:
  • Contra-indication to anticoagulant therapy
  • Subject with known increased bleeding time, hemophilia, thrombocytopenia, and/or history of any vascular purpura
  • Subject with detectable antibody against heparin in the blood
  • Any history or presence of clinically relevant cardiovascular, gynecologic (for women), pulmonary, gastro-intestinal, hepatic, renal, metabolic, hematological, neurologic, psychiatric, systemic, ocular or infectious disease that is capable of altering the absorption, metabolism, or elimination of drugs, or of constituting a risk factor when taking the study medication; any acute infectious disease or signs of acute illness; except subject with hypertension, hypo- or hyperthyroidism or dyslipidemia if well-controlled by treatment for at least one year.
  • Subject with diabetes or other cardiovascular or metabolic disease
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  • Subject with INR > 1.5
  • Frequent headaches and/or migraine, recurrent nausea and/or vomiting (more than twice a month)
  • Blood donation or blood loss within one month before administration
  • Symptomatic hypotension whatever the decrease in blood pressure or asymptomatic postural hypotension defined by a decrease in SBP equal to or greater than 20 mmHg within three minutes when changing from the supine to the standing position
  • Presence or history of drug allergy, or allergic disease diagnosed and treated by a physician
  • History or presence of drug or alcohol abuse (alcohol consumption > 40 grams/day)
  • Smoking more than 5 cigarettes or equivalent/day, or unable to stop smoking during the study
  • Excessive consumption of beverages with xanthine bases (> 4 cups or glasses/day)
  • Pregnancy (defined as positive beta-HCG plasma test that can not be explicated by menopauses), breast-feeding for female, any history or presence of clinically relevant gynecologic disease
  • Interfering substance:
  • Any medication (including St John's Wort) within 14 days before administration, or within 5 times the elimination half-life of that drug, except for hormonal contraception or replacement therapy, and allowed therapy for stable pathology
  • Anti-inflammatory treatments and anti-aggregant treatments are strictly forbidden during the whole study period
  • General conditions:
  • Subject who, in the judgment of the Investigator, is likely to be non-compliant during the study, or unable to cooperate because of a language problem or poor mental development
  • Subject in exclusion period of a previous study according to applicable regulations
  • Subject who cannot be contacted in case of emergency
  • Subject is the investigator or any sub-investigator, research assistant, pharmacist, study coordinator, other staff thereof, directly involved in the conduct of the protocol or any other protocol of the Investigating Center
  • Subject is an employee of the Investigating Center
  • Biological status:
  • Positive reaction to any of the following tests: HBs antigen, anti-HCV antibodies, anti-HIV1 antibodies, anti-HIV2 antibodies, anti-LMWH antibodies
  • Positive results on urine drug screen (amphetamines/metamphetamines, barbiturates, benzodiazepines, cannabinoids)
  • Positive alcohol breath or plasma test

Trial locations and contacts

1 site in 1 country.

France1 site
  • Sanofi-Aventis Administrative Office

    Paris

Other trials in France

About this study

Official title: A Phase I, Pharmacokinetic and Tolerability Study of Intravenous Unfractionated Heparin After Subcutaneous Enoxaparin 1mg/kg Bid Repeated Administration in Healthy Subjects

Primary objective:

  • to characterize the pharmacokinetic and the pharmacodynamic profile after intravenous bolus injection of unfractionated heparin (UFH) after repeated sc 100 IU anti-Xa/kg (corresponding to 1 mg/kg) twice a day during 2.5 days (every 12±2hrs) administrations of enoxaparin in Caucasian healthy subjects.

Secondary objective(s):

  • to compare the pharmacokinetic and the pharmacodynamic profile between 3 different timing of administration of the UFH
  • to assess the tolerability of the different anticoagulation protocols
Conditions
Thrombosis
Being tested
Enoxaparin
Medical subject headings
Thrombosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00622115
Study groupRoleWhat they receive
AExperimental70 U/kg of UnFractionated Heparin (UFH) administered intravenously at 4 hours following the last injection of enoxaparin
Receives: Drug: Enoxaparin
BExperimental70 U/kg of UnFractionated Heparin (UFH) administered intravenously at 6 hours following the last injection of enoxaparin
Receives: Drug: Enoxaparin
CExperimental70 U/kg of UnFractionated Heparin (UFH) administered intravenously at 10 hours following the last injection of enoxaparin
Receives: Drug: Enoxaparin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Concentration-time profiles of anti-Xa and anti-IIa levels

    Measured: At baseline (Day 2) after the morning enoxaparin injection and at day 3 from pre-dose of enoxaparin and lasting until 14 hours after the enoxaparin injection.

Secondary outcomes (3)
  1. Effect-time profiles of ACT, TGTppp and TGTprp

    Measured: At baseline (Day 2) after the morning enoxaparin sc injection and at day 3 from pre-dose of enoxaparin and lasting until 14 hours after the enoxaparin injection.

  2. PFA100 levels measured

    Measured: At pre-dose, 4h and 14h post dose of enoxaparin

  3. Documentation of adverse event, physical examination, clinical laboratory safety, vital signs and ECG recording at prespecified time-points.

    Measured: during the entire study

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Feb 2008 (estimated)
  2. Study startJul 2007
  3. Primary completionNov 2007
  4. Study completionNov 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
72 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00622115
Sponsor's protocol ID
ENOXA_C_02537
Other IDs
2007-000884-99
Status last verified
Mar 2011
First submitted
13 Feb 2008
Last updated
15 Mar 2011
Results posted
No

Publications

  • Drouet L, Bal dit Sollier C, Martin J. Adding intravenous unfractionated heparin to standard enoxaparin causes excessive anticoagulation not detected by activated clotting time: results of the STACK-on to ENOXaparin (STACKENOX) study. Am Heart J. 2009 Aug;158(2):177-84. doi: 10.1016/j.ahj.2009.05.022.

    PubMed 19619692

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Enoxaparin in people with Thrombosis, run by Sanofi at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 24 inclusion and 28 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Mar 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Concentration-time profiles of anti-Xa and anti-IIa levels (time frame: At baseline (Day 2) after the morning enoxaparin injection and at day 3 from pre-dose of enoxaparin and lasting until 14 hours after the enoxaparin injection.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00622115, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Mar 2011.

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