Management of Platelet Transfusion Therapy in Patients With Blood Cancer or Treatment-Induced Thrombocytopenia
Study Details
Study Description
Brief Summary
This pilot clinical trial compares the safety of two different platelet transfusion "thresholds" among patients with blood cancer or treatment-induced thrombocytopenia whose condition requires anticoagulant medication (blood thinners) for blood clots. Giving relatively fewer platelet transfusions may reduce the side effects of frequent platelet transfusions without leading to undue bleeding.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
|
Phase 2 |
Detailed Description
PRIMARY OBJECTIVES:
- To determine feasibility of a randomized controlled trial comparing two different platelet transfusion thresholds (50 x 109/L versus [vs] 30 x 109/L) in patients with treatment or malignancy-induced thrombocytopenia requiring therapeutic anticoagulation.
SECONDARY OBJECTIVES:
-
Progressive or new venous thromboembolic (VTE).
-
Progressive or new arterial thromboembolism (ATE).
-
Hemorrhagic events (World Health Organization [WHO] grade 2 or greater).
-
A composite of I, II and III.
-
Major bleeds (WHO grade 3 or 4).
-
Number of platelet transfusions per patient during the study period.
-
Platelet transfusion related complications (including transfusion reactions, alloimmunization and volume overload).
-
Degree to which platelet target thresholds are achieved.
OUTLINE: Patients are randomized into 1 of 2 groups.
GROUP I (Lower dose): Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 109/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 109 for 3 consecutive days in the absence of transfusions.
GROUP II (Higher dose): Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 109/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 109 for 3 consecutive days in the absence of transfusions.
After completion of study, patients are followed up at 30 days.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Experimental: Group I (lower dose platelet transfusion) Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. |
Biological: Platelet Transfusion
Undergo lower dose platelet transfusion
Other Names:
|
Experimental: Group II (higher dose platelet transfusion) Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. |
Biological: Platelet Transfusion
Undergo higher dose platelet transfusion
Other Names:
|
Outcome Measures
Primary Outcome Measures
- Number of Eligible Patients Approached for the Study [Up to 1 year]
- Number of Patients Approached for But Refusing Consent [Up to 1 year]
Reasons for ineligibility will be reported qualitatively in order to inform future studies.
- Number of Patients Consenting to Enrollment [Up to 1 year]
- Number of Patients Eligible [Up to 1 year]
- Number of Patients Screened and Deemed Ineligible [Up to 1 year]
Reasons for ineligibility will be reported qualitatively in order to inform future studies.
- Number of Patients Successfully Following Protocol [Up to 1 year]
Will evaluate the number of patients successfully following protocol, defined as receiving transfusions 'on protocol' at the end of the study period.
Secondary Outcome Measures
- Incidence of Hemorrhagic Events (World Health Organization Grade 2 or Greater) [Up to 1 year]
Will evaluate the incidence of hemorrhagic events (World Health Organization grade 2 or greater).
- Major Bleeds (World Health Organization Grade 3 or 4) [Up to 1 year]
Will evaluate the major bleeds (World Health Organization grade 3 or 4).
- Number of Platelet Transfusions Per Patient During the Study Period [Up to 1 year]
- Percent of Days on Which Subjects Are Transfused (or Transfusion Are Not Given) [Up to 1 year]
The frequency with which transfusions are given despite a platelet count above the determined threshold will be documented, as will the frequency with which transfusions are not administered within 24 hours after a platelet count below the determined threshold.
- Platelet Transfusion Related Complications [Up to 1 year]
Total number of transfusion reactions, patients experiencing alloimmunization and volume overload will be reported.
- Progressive or New Arterial Thromboembolism [Up to 1 year]
Will evaluate the progression or new arterial thromboembolism by either documented acute electrocardiographic changes compatible with myocardial injury and/or serum biochemical changes diagnostic of myocardial infarction, or documented imaging (computed tomography or magnetic resonance imaging) changes compatible with infarct due to embolism in the presence of a new neurological deficit, or imaging demonstrated intraluminal filling defects in an arterial distribution accompanied by symptoms of acute ischemia (acute onset pain, pallor, loss of pulses or other end-organ damage).
- Progressive or New Venous Thromboembolic [Up to 1 year]
Will evaluate the progressive or new venous thromboembolic. Will require imaging confirmation, defined as intraluminal filling defect(s) on contrast-enhanced computed tomography or incompressible venous segment(s) on ultrasonography.
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Any patient with non-acute promyelocytic leukemia (APL) acute leukemia (acute myeloid leukemia [AML], acute lymphoblastic leukemia [ALL], biphenotypic leukemia) undergoing curative intent chemotherapy OR any patient undergoing allogeneic hematopoietic stem cell transplantation (HSCT) for a hematologic disorder (including acute leukemia as above, chronic myelogenous leukemia [CML], chronic lymphocytic leukemia [CLL], myelodysplastic syndrome [MDS], primary or secondary myelofibrosis, hypereosinophilic syndromes, plasma cell disorders, B-cell or T-cell lymphoma)
-
Disease may be measurable or non-measurable
-
Diagnosis of symptomatic venous thromboembolism requiring therapeutic-dose anticoagulation (unfractionated or low-molecular weight heparin or oral anticoagulants) throughout the period of hematopoietic recovery
-
Anticipated platelet count =< 50 x 10^9/L for >= 5 days within 72 hours of enrollment
-
Ability to understand and the willingness to sign a written informed consent document
Exclusion Criteria:
-
Separate episode of VTE or arterial thrombosis within 3 months of enrollment
-
Major bleed (WHO grade 3 or 4) within 6 months of enrollment
-
Active bleeding (grade 2 or higher) at the time of enrollment
-
History of intracranial bleeding at any time
-
Disorders of hemostasis including von Willebrand disease, hemophilia, platelet function disorders
-
Concomitant use of aspirin or non-steroidal anti-inflammatory drugs
-
Evidence of disseminated intravascular anticoagulation (DIC) as determined by the patient's primary provider
-
History of alloimmunization (defined as platelet refractoriness with panel reactive antibody [PRA] > 25%) at the time of or prior to enrollment
-
Uncontrolled or concurrent illness including, but not limited to, ongoing or active infection, unstable angina pectoris
-
Psychiatric illness/social situations that would limit compliance with study requirements
-
Pregnant or able to become pregnant and unwilling to use two forms of birth control during the study period
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | Fred Hutch/University of Washington Cancer Consortium | Seattle | Washington | United States | 98109 |
Sponsors and Collaborators
- Fred Hutchinson Cancer Center
- National Cancer Institute (NCI)
Investigators
- Principal Investigator: David Garcia, Fred Hutch/University of Washington Cancer Consortium
Study Documents (Full-Text)
More Information
Publications
None provided.- 9799
- NCI-2017-00864
- 9799
- P30CA015704
Study Results
Participant Flow
Recruitment Details | |
---|---|
Pre-assignment Detail |
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) |
---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion |
Period Title: Overall Study | ||
STARTED | 2 | 2 |
COMPLETED | 2 | 2 |
NOT COMPLETED | 0 | 0 |
Baseline Characteristics
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) | Total |
---|---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion | Total of all reporting groups |
Overall Participants | 2 | 2 | 4 |
Age (years) [Mean (Full Range) ] | |||
Mean (Full Range) [years] |
42
|
35
|
39
|
Sex: Female, Male (Count of Participants) | |||
Female |
1
50%
|
1
50%
|
2
50%
|
Male |
1
50%
|
1
50%
|
2
50%
|
Race (NIH/OMB) (Count of Participants) | |||
American Indian or Alaska Native |
0
0%
|
0
0%
|
0
0%
|
Asian |
0
0%
|
0
0%
|
0
0%
|
Native Hawaiian or Other Pacific Islander |
0
0%
|
0
0%
|
0
0%
|
Black or African American |
0
0%
|
0
0%
|
0
0%
|
White |
0
0%
|
0
0%
|
0
0%
|
More than one race |
0
0%
|
0
0%
|
0
0%
|
Unknown or Not Reported |
2
100%
|
2
100%
|
4
100%
|
Region of Enrollment (participants) [Number] | |||
United States |
2
100%
|
2
100%
|
4
100%
|
Outcome Measures
Title | Number of Eligible Patients Approached for the Study |
---|---|
Description | |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Approached Patients |
---|---|
Arm/Group Description | Eligible patients approached for participation |
Measure Participants | 4 |
Count of Participants [Participants] |
4
200%
|
Title | Number of Patients Approached for But Refusing Consent |
---|---|
Description | Reasons for ineligibility will be reported qualitatively in order to inform future studies. |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Approached Patients |
---|---|
Arm/Group Description | Eligible patients approached for participation |
Measure Participants | 4 |
Count of Participants [Participants] |
0
0%
|
Title | Number of Patients Consenting to Enrollment |
---|---|
Description | |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Approached Patients |
---|---|
Arm/Group Description | Eligible patients approached for participation |
Measure Participants | 4 |
Count of Participants [Participants] |
4
200%
|
Title | Number of Patients Eligible |
---|---|
Description | |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Screened Patients |
---|---|
Arm/Group Description | Patients screened for eligibility |
Measure Participants | 7 |
Count of Participants [Participants] |
4
200%
|
Title | Number of Patients Screened and Deemed Ineligible |
---|---|
Description | Reasons for ineligibility will be reported qualitatively in order to inform future studies. |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Screened Patients |
---|---|
Arm/Group Description | Patients screened for eligibility |
Measure Participants | 7 |
Count of Participants [Participants] |
3
150%
|
Title | Number of Patients Successfully Following Protocol |
---|---|
Description | Will evaluate the number of patients successfully following protocol, defined as receiving transfusions 'on protocol' at the end of the study period. |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) |
---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion |
Measure Participants | 2 | 2 |
Count of Participants [Participants] |
2
100%
|
2
100%
|
Title | Incidence of Hemorrhagic Events (World Health Organization Grade 2 or Greater) |
---|---|
Description | Will evaluate the incidence of hemorrhagic events (World Health Organization grade 2 or greater). |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) |
---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion |
Measure Participants | 2 | 2 |
Count of Participants [Participants] |
0
0%
|
0
0%
|
Title | Major Bleeds (World Health Organization Grade 3 or 4) |
---|---|
Description | Will evaluate the major bleeds (World Health Organization grade 3 or 4). |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) |
---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion |
Measure Participants | 2 | 2 |
Count of Participants [Participants] |
0
0%
|
0
0%
|
Title | Number of Platelet Transfusions Per Patient During the Study Period |
---|---|
Description | |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) |
---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion |
Measure Participants | 2 | 2 |
Mean (Full Range) [platelet transfusions] |
2
|
9
|
Title | Percent of Days on Which Subjects Are Transfused (or Transfusion Are Not Given) |
---|---|
Description | The frequency with which transfusions are given despite a platelet count above the determined threshold will be documented, as will the frequency with which transfusions are not administered within 24 hours after a platelet count below the determined threshold. |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) |
---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion |
Measure Participants | 2 | 2 |
Number [percentage of study days] |
0
|
3.8
|
Title | Platelet Transfusion Related Complications |
---|---|
Description | Total number of transfusion reactions, patients experiencing alloimmunization and volume overload will be reported. |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) |
---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion |
Measure Participants | 2 | 2 |
Number [Platelet transfusion complication] |
0
|
2
|
Title | Progressive or New Arterial Thromboembolism |
---|---|
Description | Will evaluate the progression or new arterial thromboembolism by either documented acute electrocardiographic changes compatible with myocardial injury and/or serum biochemical changes diagnostic of myocardial infarction, or documented imaging (computed tomography or magnetic resonance imaging) changes compatible with infarct due to embolism in the presence of a new neurological deficit, or imaging demonstrated intraluminal filling defects in an arterial distribution accompanied by symptoms of acute ischemia (acute onset pain, pallor, loss of pulses or other end-organ damage). |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) |
---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion |
Measure Participants | 2 | 2 |
Count of Participants [Participants] |
0
0%
|
0
0%
|
Title | Progressive or New Venous Thromboembolic |
---|---|
Description | Will evaluate the progressive or new venous thromboembolic. Will require imaging confirmation, defined as intraluminal filling defect(s) on contrast-enhanced computed tomography or incompressible venous segment(s) on ultrasonography. |
Time Frame | Up to 1 year |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) |
---|---|---|
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion |
Measure Participants | 2 | 2 |
Count of Participants [Participants] |
0
0%
|
0
0%
|
Adverse Events
Time Frame | On study time (varied between subjects) | |||
---|---|---|---|---|
Adverse Event Reporting Description | ||||
Arm/Group Title | Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) | ||
Arm/Group Description | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 30 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo lower dose platelet transfusion | Patients undergo platelet transfusion on all days when the morning platelet count is below the threshold 50 x 10^9/L for up to 30 days or until the platelet count spontaneously recovers to > 50 x 10^9 for 3 consecutive days in the absence of transfusions. Platelet Transfusion: Undergo higher dose platelet transfusion | ||
All Cause Mortality |
||||
Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/2 (0%) | 0/2 (0%) | ||
Serious Adverse Events |
||||
Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/2 (0%) | 0/2 (0%) | ||
Other (Not Including Serious) Adverse Events |
||||
Group I (Lower Dose Platelet Transfusion) | Group II (Higher Dose Platelet Transfusion) | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 1/2 (50%) | 2/2 (100%) | ||
Gastrointestinal disorders | ||||
mucositis | 1/2 (50%) | 1 | 2/2 (100%) | 2 |
transaminitis | 0/2 (0%) | 0 | 1/2 (50%) | 1 |
Limitations/Caveats
More Information
Certain Agreements
All Principal Investigators ARE employed by the organization sponsoring the study.
There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
Results Point of Contact
Name/Title | Dr Bethany Samuelson Bannow |
---|---|
Organization | FHCRC |
Phone | 5034949925 |
samuelsb@ohsu.edu |
- 9799
- NCI-2017-00864
- 9799
- P30CA015704