Skip to content

Platelet Responsiveness and Outcome from Platelet Transfusion (PROmPT)

Platelet Responsiveness and Outcome from Platelet Transfusion - does inherent variation in donor platelet function affect the clinical efficacy of apheresis platelets? A randomised double blind single centre trial.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN56366401
Enrollment
130
Registered
2012-11-19
Start date
2011-10-03
Completion date
Unknown
Last updated
2016-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

National Cancer Research Network, Blood Cancer

Interventions

Patients will be randomised to a single unit from either a low or high responding donor. The responsiveness of the donor's platelets in vitro to agonists ( molecules which "switch on" platelets) has b

Sponsors

NHS Blood and Transplant [NHSBT] (UK)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Age 16 years or older 2. Stable Haematology/Oncology Patients at Addenbrooke?s Hospital 3. Thrombocytopenia secondary to bone marrow failure, requiring platelet transfusions according to local and British Committee for Standards in Haematology (BCSH) Guidelines 4. Patients who, if peripheral venous access for blood sampling is required, have adequate access and will consent to their blood being taken in this way 5. Patients able to give written informed consent 6. Male or female

Exclusion criteria

Exclusion criteria: 1. Inherited or acquired clotting disorders 2. Inherited or acquired platelet function disorders 3. Current Acute Promyelocytic Leukaemia 4. Previously documented WHO Grade 4 bleeding (debilitating blood loss) 5. Palpable Splenomegaly 6. Immunological refractoriness to platelet transfusion 7. Require HLA or HPA matched platelets 8. Pregnant or lactating women 9. Other active malignancy in past 5 years

Design outcomes

Primary

MeasureTime frame
Count increment at 1 hour; measured as difference between pre and 1 hour post transfusion count. Corrected for dose and BSA.

Secondary

MeasureTime frame
1. 24 hour count increment measured as difference between pre and 24 hour count 2. Bleeding Score - both patient and clinician assessed 3. Red cell transfusion measured as number of red cell units transfused 4. Time to next platelet transfusion measured as number of days to next transfusion

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026