NCT03195010

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.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
4

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Jun 2017

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 9, 2017

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

June 13, 2017

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 22, 2017

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 21, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 21, 2018

Completed
10 months until next milestone

Results Posted

Study results publicly available

October 21, 2019

Completed
Last Updated

October 21, 2019

Status Verified

October 1, 2019

Enrollment Period

1.5 years

First QC Date

June 13, 2017

Results QC Date

September 23, 2019

Last Update Submit

October 17, 2019

Conditions

Outcome Measures

Primary Outcomes (6)

  • Number of Eligible Patients Approached for the Study

    Up to 1 year

  • Number of Patients Approached for But Refusing Consent

    Reasons for ineligibility will be reported qualitatively in order to inform future studies.

    Up to 1 year

  • 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

    Reasons for ineligibility will be reported qualitatively in order to inform future studies.

    Up to 1 year

  • Number of Patients Successfully Following Protocol

    Will evaluate the number of patients successfully following protocol, defined as receiving transfusions 'on protocol' at the end of the study period.

    Up to 1 year

Secondary Outcomes (7)

  • Incidence of Hemorrhagic Events (World Health Organization Grade 2 or Greater)

    Up to 1 year

  • Major Bleeds (World Health Organization Grade 3 or 4)

    Up to 1 year

  • 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

  • Platelet Transfusion Related Complications

    Up to 1 year

  • +2 more secondary outcomes

Study Arms (2)

Group I (lower dose platelet transfusion)

EXPERIMENTAL

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

Group II (higher dose platelet transfusion)

EXPERIMENTAL

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

Interventions

Undergo lower dose platelet transfusion

Also known as: Blood Platelet Transfusion
Group I (lower dose platelet transfusion)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Fred Hutch/University of Washington Cancer Consortium

Seattle, Washington, 98109, United States

Location

MeSH Terms

Conditions

Leukemia, Biphenotypic, AcutePrecursor Cell Lymphoblastic Leukemia-LymphomaLeukemia, Myeloid, AcuteLymphoma, B-CellLeukemia, Lymphocytic, Chronic, B-CellLeukemia, Myelogenous, Chronic, BCR-ABL PositiveHematologic DiseasesMyelodysplastic SyndromesPrimary MyelofibrosisLymphoma, T-CellThrombocytopeniaVenous Thromboembolism

Interventions

Platelet Transfusion

Condition Hierarchy (Ancestors)

Leukemia, LymphoidLeukemiaNeoplasms by Histologic TypeNeoplasmsHemic and Lymphatic DiseasesLymphoproliferative DisordersLymphatic DiseasesImmunoproliferative DisordersImmune System DiseasesLeukemia, MyeloidLymphoma, Non-HodgkinLymphomaLeukemia, B-CellChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsMyeloproliferative DisordersBone Marrow DiseasesBlood Platelet DisordersCytopeniaThromboembolismEmbolism and ThrombosisVascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

Blood Component TransfusionBlood TransfusionBiological TherapyTherapeutics

Results Point of Contact

Title
Dr Bethany Samuelson Bannow
Organization
FHCRC

Study Officials

  • David Garcia

    Fred Hutch/University of Washington Cancer Consortium

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 13, 2017

First Posted

June 22, 2017

Study Start

June 9, 2017

Primary Completion

December 21, 2018

Study Completion

December 21, 2018

Last Updated

October 21, 2019

Results First Posted

October 21, 2019

Record last verified: 2019-10

Locations