Trial Outcomes & Findings for Dalteparin vs Unfractionated Heparin For The Prevention Of Venous Thromboembolism (VTE) In Hospitalized Acutely Ill Medical Patients (NCT NCT00445328)

NCT ID: NCT00445328

Last Updated: 2009-10-15

Results Overview

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.

Recruitment status

TERMINATED

Study phase

PHASE4

Target enrollment

84 participants

Primary outcome timeframe

Day 21

Results posted on

2009-10-15

Participant Flow

Participant milestones

Participant milestones
Measure
Dalteparin
5000 IU (International Units) dalteparin in 0.2 mL (milliliters) subcutaneously once a day (Arm A)
Unfractionated Heparin
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Overall Study
STARTED
42
42
Overall Study
Received Treatment
41
42
Overall Study
COMPLETED
39
36
Overall Study
NOT COMPLETED
3
6

Reasons for withdrawal

Reasons for withdrawal
Measure
Dalteparin
5000 IU (International Units) dalteparin in 0.2 mL (milliliters) subcutaneously once a day (Arm A)
Unfractionated Heparin
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Overall Study
Death
0
1
Overall Study
Adverse Event
0
3
Overall Study
Other
0
2
Overall Study
Withdrawal by Subject
2
0
Overall Study
Protocol Violation
1
0

Baseline Characteristics

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

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Dalteparin
n=41 Participants
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
n=42 Participants
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Total
n=83 Participants
Total of all reporting groups
Age Continuous
61.7 years
STANDARD_DEVIATION 10.6 • n=99 Participants
60.8 years
STANDARD_DEVIATION 10.9 • n=107 Participants
61.3 years
STANDARD_DEVIATION 10.7 • n=206 Participants
Sex: Female, Male
Female
18 Participants
n=99 Participants
21 Participants
n=107 Participants
39 Participants
n=206 Participants
Sex: Female, Male
Male
23 Participants
n=99 Participants
21 Participants
n=107 Participants
44 Participants
n=206 Participants

PRIMARY outcome

Timeframe: Day 21

Population: Intent to treat (ITT) set: all subjects who were randomized, received at least 1 dose of study drug and had undergone at least 1 test of primary efficacy assessment.

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.

Outcome measures

Outcome measures
Measure
Dalteparin
n=37 Participants
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
n=35 Participants
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Confirmed Thromboembolic Events
Present
0 participants
0 participants
Confirmed Thromboembolic Events
Absent
37 participants
35 participants

PRIMARY outcome

Timeframe: Day 21

Population: Intent to treat (ITT)

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'.

Outcome measures

Outcome measures
Measure
Dalteparin
n=37 Participants
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
n=35 Participants
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Composite of Objectively Verified Thromboembolic Events
Symptomatic DVT Present
0 participants
0 participants
Composite of Objectively Verified Thromboembolic Events
Symptomatic DVT Absent
37 participants
35 participants
Composite of Objectively Verified Thromboembolic Events
Symptomatic Proximal DVT Present
0 participants
0 participants
Composite of Objectively Verified Thromboembolic Events
Symptomatic Proximal DVT Absent
37 participants
35 participants
Composite of Objectively Verified Thromboembolic Events
Symptomatic Distal DVT Present
0 participants
0 participants
Composite of Objectively Verified Thromboembolic Events
Symptomatic Distal DVT Absent
37 participants
35 participants
Composite of Objectively Verified Thromboembolic Events
Asymptomatic Proximal DVT Present
0 participants
0 participants
Composite of Objectively Verified Thromboembolic Events
Asymptomatic Proximal DVT Absent
37 participants
35 participants
Composite of Objectively Verified Thromboembolic Events
Fatal pulmonary embolism Present
0 participants
0 participants
Composite of Objectively Verified Thromboembolic Events
Fatal pulmonary embolism Absent
37 participants
35 participants
Composite of Objectively Verified Thromboembolic Events
Symptomatic non-fatal pulmonary embolism Present
0 participants
0 participants
Composite of Objectively Verified Thromboembolic Events
Symptomatic non-fatal pulmonary embolism Absent
37 participants
35 participants
Composite of Objectively Verified Thromboembolic Events
Sudden Death within 24 hours of VTE Present
0 participants
0 participants
Composite of Objectively Verified Thromboembolic Events
Sudden Death within 24 hours of VTE Absent
37 participants
35 participants

SECONDARY outcome

Timeframe: Day 14, Day 21 (End of Study)

Population: Intent to treat (ITT)

Subjects with death from any cause: end of study.

Outcome measures

Outcome measures
Measure
Dalteparin
n=37 Participants
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
n=37 Participants
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
All Cause Mortality
0 participants
1 participants

SECONDARY outcome

Timeframe: Day 21

Population: Intent to treat (ITT)

Subjects with stroke (either ischemic or hemorrhagic) based on results of CT (computed tomographic) pulmonary angiography

Outcome measures

Outcome measures
Measure
Dalteparin
n=37 Participants
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
n=37 Participants
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Stroke - Ischemic or Hemorrhagic
0 participants
0 participants

SECONDARY outcome

Timeframe: Day 21

Population: Intent to treat (ITT)

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.

Outcome measures

Outcome measures
Measure
Dalteparin
n=37 Participants
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
n=37 Participants
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Bleeding - Major or Minor
Major Bleeding
0 participants
1 participants
Bleeding - Major or Minor
Minor Bleeding
0 participants
0 participants

SECONDARY outcome

Timeframe: Day 21

Population: Intent to treat (ITT)

Subjects with drug-related allergic reactions

Outcome measures

Outcome measures
Measure
Dalteparin
n=37 Participants
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
n=37 Participants
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Allergic Reactions (Drug-related)
0 participants
0 participants

SECONDARY outcome

Timeframe: Day 21

Population: Intent to Treat (ITT)

Subjects with thrombocytopenia (low platelets).

Outcome measures

Outcome measures
Measure
Dalteparin
n=37 Participants
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
n=37 Participants
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Thrombocytopenia
35 participants
31 participants

Adverse Events

Dalteparin

Serious events: 2 serious events
Other events: 7 other events
Deaths: 0 deaths

Unfractionated Heparin

Serious events: 4 serious events
Other events: 7 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Dalteparin
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Respiratory, thoracic and mediastinal disorders
Dyspnoea
0.00%
0/41
4.8%
2/42
General disorders
Chest pain
0.00%
0/41
2.4%
1/42
General disorders
Injection site rash
0.00%
0/41
2.4%
1/42
Infections and infestations
Lobar pneumonia
2.4%
1/41
0.00%
0/42
Skin and subcutaneous tissue disorders
Drug eruption
0.00%
0/41
2.4%
1/42
Surgical and medical procedures
Hysterosalpingo-oophorectomy
0.00%
0/41
2.4%
1/42
Gastrointestinal disorders
Diarrhoea
2.4%
1/41
0.00%
0/42

Other adverse events

Other adverse events
Measure
Dalteparin
5000 IU dalteparin in 0.2 mL subcutaneously once a day (Arm A)
Unfractionated Heparin
5000 IU unfractionated Heparin (UFH) in 5 mL subcutaneously 3 times a day (Arm B) for 6 to 14 days.
Gastrointestinal disorders
Constipation
0.00%
0/41
4.8%
2/42
Gastrointestinal disorders
Vomiting
0.00%
0/41
4.8%
2/42
General disorders
Pyrexia
9.8%
4/41
4.8%
2/42
Investigations
Blood pressure increased
4.9%
2/41
2.4%
1/42
Investigations
Haemoglobin decreased
4.9%
2/41
2.4%
1/42
Respiratory, thoracic and mediastinal disorders
Dyspnoea
2.4%
1/41
4.8%
2/42

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer, Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of \< 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), \< 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
  • Publication restrictions are in place

Restriction type: OTHER