NCT03515447

Brief Summary

The investigators developed a platelet transfusion saving strategy based on thrombopoietin administration in heart or lung transplantation (HLT) patients or assist device implantation in bridge-to-transplantation (BTT) or bridge to-decision (BTD). This strategy was applied from May 2014 to October 2015 in patients whose platelet counts were below 100 Giga per liter (G/L). As part of a health care quality improvement project, the investigators evaluated this strategy in a before/after design. January 2010 to December 2013 constituted the before period.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started May 2014

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2014

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2015

Completed
2.4 years until next milestone

First Submitted

Initial submission to the registry

March 21, 2018

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 3, 2018

Completed
Last Updated

June 24, 2026

Status Verified

May 1, 2018

Enrollment Period

1.5 years

First QC Date

March 21, 2018

Last Update Submit

June 23, 2026

Conditions

Keywords

transfusion saving strategyheart or lung transplantationassist deviceExtra Corporal Life Support (ECLS)Left Ventricular Assist Device (LVAD )Total artificial Heart

Outcome Measures

Primary Outcomes (1)

  • Number of platelets concentrate

    Cumulative platelets concentrate from day 1 to day 28 after thoracic transplantation or assist device implantation.

    Until day 28

Secondary Outcomes (10)

  • Number of unit of Fresh Frozen Plasma transfused until day 28.

    Until day 28

  • Number of unit of Packed red blood cells transfused until day 28.

    Until day 28

  • Number of unit of whole labile blood products until day 28.

    Until day 28

  • Transfusion cost

    Until 1 year

  • alloimmunisation (DSA or non-DSA) until 1 year

    At day 15, day30, month3, month6 and one year

  • +5 more secondary outcomes

Study Arms (2)

Before period

During this period no patient received Romiplostim.

After period

Application of the transfusion saving strategy protocol through Romiplostim treatment. The first subcutaneous injection of 1.5 to 2 µg/kg of romiplostim was administered in the post-operative periods. An algorithm based on patient weight and platelet count was established to determine romiplostim doses. One injection per week was performed. Romiplostim posology was adjusted between 2 and 5µg/kg every week according to platelet count with a maximum of 4 administrations in the ICU.

Other: Non interventional study

Interventions

After period

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Heart or lung transplantation (HLT) patients or assist device implantation in bridge-to-transplantation or to-decision; with platelet counts below 100G/L at least once in the post-operative period

You may qualify if:

  • Patients admitted in ICU after HLT, BTT or BTD assist device implantation with platelet counts below 100G/L at least once in the post-operative period

You may not qualify if:

  • age under 18 or over 65, combined heart and lung transplantation, multiple organ dysfunction syndrome (MODS), pericardial effusion, active surgical bleeding, assist device dysfunction or suspected/diagnosed heparin-induced thrombocytopenia. We also excluded patients with myelodysplastic or myeloproliferative syndrome, hematological malignancy, severe liver cirrhosis with a Child-Pugh score superior to 6, receiving antiplatelet therapy, aplasia diagnosed on bone marrow analyses, pregnancy, thrombophilia, prior pulmonary embolism or stroke in the previous 6 months. Thrombophilia was defined as factor V Leyden mutation, activated protein C resistance, protein S deficiency, protein C deficiency, prothrombin gene mutation, factor VIII excess, ATIII deficiency or antiphospholipid syndrome. For the assistance population, the protocol also excluded destination-therapy devices or patients with transplantation contraindications

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CHU de Nantes

Nantes, 44093, France

Location

MeSH Terms

Conditions

Thrombocytopenia

Condition Hierarchy (Ancestors)

Blood Platelet DisordersHematologic DiseasesHemic and Lymphatic DiseasesCytopenia

Study Officials

  • Karim ASEHNOUNE, MD, PhD

    Nantes University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 21, 2018

First Posted

May 3, 2018

Study Start

May 1, 2014

Primary Completion

October 31, 2015

Study Completion

October 31, 2015

Last Updated

June 24, 2026

Record last verified: 2018-05

Locations