Dalteparin vs Unfractionated Heparin For The Prevention Of Venous Thromboembolism (VTE) In Hospitalized Acutely Ill Medical Patients

October 5, 2009 updated by: Pfizer

Prospective Randomized Phase IV Open Label Comparative Study Of Dalteparin vs Unfractionated Heparin For The Prevention Of Venous Thromboembolism (VTE) In Hospitalized Acutely Ill Medical Patients.

The purpose of this study is to compare the efficacy and safety of dalteparin vs unfractionated heparin for the prevention of VTE (Venous Thromboembolism) in hospitalized acutely ill medical patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The study was prematurely discontinued due to delay in overall study start-up and inability to meet pre-defined protocol recruitment milestones on June 30th, 2008. There were no safety concerns regarding the study in the decision to terminate the trial.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
84

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • India
    • Andhra Pradesh
      • Hyderabad, Andhra Pradesh, India, 500 068
        • Pfizer Investigational Site
    • Gujarat
      • Ahmedabad, Gujarat, India, 380 054
        • Pfizer Investigational Site
    • Kerala
      • Trichur, Kerala, India, 680 005
        • Pfizer Investigational Site
    • Madhya Pradesh
      • Indore, Madhya Pradesh, India, 452001
        • Pfizer Investigational Site
    • Tamil Nadu
      • Chennai, Tamil Nadu, India, 600 006
        • Pfizer Investigational Site
    • West Bengal
      • Kolkata, West Bengal, India, 700 029
        • Pfizer Investigational Site
      • Kolkata, West Bengal, India, 700 054
        • Pfizer Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Aged greater than or equal to 18 years
  • Acute medical condition with a projected hospitalization of greater than or equal to 4 days and had less than or equal to 3 days of prior immobilization for more than two thirds of the day
  • Acute congestive heart failure Class III-IV per NHYA/ Acute respiratory failure not requiring mechanical ventilation or Both
  • Acute infection without septic shock/ Acute episode of inflammatory bowel disease/ Acute rheumatologic disorders/ Acute lumbar pain or sciatica or vertebral compression with at least one risk factor for VTE

Exclusion Criteria:

  • Contraindications to use of anticoagulants
  • Active bleeding or abnormal coagulation tests
  • Recent (less than 1 month) head injury, hemorrhagic stroke, cerebral tumor or intracranial aneurysm or ischemic stroke within the last month.
  • Major surgical or invasive procedure within the last month resulting in ongoing convalescence
  • Lumbar or spinal puncture within last 48 hours
  • S creatinine levels more than 2
  • On inotropic agents

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: B
Drug: Unfractionated heparin
Unfractionated heparin 5000 IU thrice daily subcutaneously for 6-14 days.
Experimental: A
Drug: Dalteparin (Fragmin)
Dalteparin 5000 IU once daily subcutaneously for 6-14 days.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Confirmed Thromboembolic Events
Time Frame: Day 21
Confirmed thromboembolic events = 'present' if any following events are present/abnormal, otherwise = 'absent': Deep vein thrombosis measured by Color Doppler ultrasonography lower limbs; pulmonary embolism by chest xray, ventilation-perfusion scan, computed tomography pulmonary angiography; Sudden Death within 24 hours of venous thromboembolism symptoms.
Day 21
Composite of Objectively Verified Thromboembolic Events
Time Frame: Day 21
Subjects with objectively verified thromboembolic events: symptomatic proximal and distal deep vein thrombosis [DVT], asymptomatic proximal DVT, fatal or symptomatic non-fatal pulmonary embolism [PE] or sudden death within 24 hours of onset of venous thromboembolism (VTE) symptoms. Occurrence of any ='Present', otherwise = 'Absent'.
Day 21

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
All Cause Mortality
Time Frame: Day 14, Day 21 (End of Study)
Subjects with death from any cause: end of study.
Day 14, Day 21 (End of Study)
Stroke - Ischemic or Hemorrhagic
Time Frame: Day 21
Subjects with stroke (either ischemic or hemorrhagic) based on results of CT (computed tomographic) pulmonary angiography
Day 21
Bleeding - Major or Minor
Time Frame: Day 21
Subjects with bleeding. Bleeding classified as major if it is: intraocular, spinal/epidural, intracranial or retroperitoneal; or if hemoglobin decreased by ≥ 2 g/dl(grams/deciliter); or if transfusion of ≥ 2 Units of blood or if significant medical or surgical intervention was required; or if it results in death. All other bleeding is classified as minor.
Day 21
Allergic Reactions (Drug-related)
Time Frame: Day 21
Subjects with drug-related allergic reactions
Day 21
Thrombocytopenia
Time Frame: Day 21
Subjects with thrombocytopenia (low platelets).
Day 21

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Pfizer

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2007

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2008

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2008

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 7, 2007

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 7, 2007

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 8, 2007

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 15, 2009

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 5, 2009

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • A6301080

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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