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Protocol for the Infusion of Buffy Coat-derived Cryopreserved Platelets in Patients With Severe Thrombocytopenia

Phase 4
Terminated
Conditions
Primary Thrombocytopenia,Unspecified
Thrombocytopenia Chemotherapy Induced
Thrombocytopenia
Interventions
Biological: Transfusion of Pooled Platelets Cryopreserved In DMSO
Registration Number
NCT02032134
Lead Sponsor
Napolitano Mariasanta
Brief Summary

The increasing need for blood components and the increasingly careful donor selection procedures, make the availability of blood components very reduced, in particular for platelets that are currently administered preferably "fresh" or cryopreserved, only in emergency conditions.

Exceeding this limit through the spread of use of cryopreserved platelets in the common clinical practice, might help clinicians to avoid wasting valuable products and face periods of particular shortage of donors Some studies already published in the literature over the last decade (1,2) have demonstrated the safety and efficacy of autologous cryopreserved platelets .

The main objective of the proposed study is to evaluate the efficacy and safety of platelets, cryopreserved with DMSO using a a new method, in patients with severe thrombocytopenia.

This is the in vivo phase of a study where availability and efficacy of cryopreserved platelets has been assessed in vitro.

Detailed Description

The primary objective of the study is to evaluate the hemostatic efficacy and safety in the recipients of platelets obtained from buffy coat of multiple donors (five), cryopreserved with DMSO using a new patented method, up to 9 months from the collection.

Further goals are the registration of any related- adverse event (idiosyncrasy, allergy, toxicity)

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
5
Inclusion Criteria

Cryopreserved buffy coat pooled platelets will be infused, after being thawed, in inpatients at U.O. of Hematology -Policlinic "P. Giaccone"-Palermo, falling into one of the following categories:

  • Stable clinical conditions and no complications with platelets ≤ 10,000/microliter;
  • With active bleeding and ≤ 20,000 platelets/microliter;
  • In the presence of: high blood pressure, high fever, rapid drop in platelets, infection, chemotherapy, coagulation abnormalities with ≤ 20,000 platelets/microliter.
Exclusion Criteria

Patients

  • Suffering from congenital immunodeficiency
  • Allogeneic bone marrow transplant candidates
  • Bone Marrow Donors for transplantation
  • Undergoing bone marrow transplant or
  • Suffering from Hodgkin's disease and treated with purine analogues (Fludarabine, cladribine)

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Patients with severe thrombocytopeniaTransfusion of Pooled Platelets Cryopreserved In DMSOIntervention Patients with severe thrombocytopenia with an active bleeding, in preparation for surgery, or after chemotherapy (prophylaxis of bleeding),will receive transfusion of Pooled Platelets Cryopreserved In DMSO With a New System
Primary Outcome Measures
NameTimeMethod
Efficacy of infused cryopreserved platelets (changes in platelets count will be determined at 1 hour and 24 hours post-transfusion)1 Hour and 24 hours post-transfusion

To evaluate the availability of cryopreserved platelets after transfusion, the correct count (the number of platelets poured and the body surface, BMI, recipient) of platelets will be determined at 1 hour and 24 hours post transfusion, respectively

Secondary Outcome Measures
NameTimeMethod
Safety of cryopreserved plateletsDuring transfusion and within 48 hours after transfusion

Any transfusion-related side effect (i.e. idiosyncrasy, allergy, toxicity) will be monitored

Trial Locations

Locations (1)

AOUP "P.Giaccone"-Hematology Unit

🇮🇹

Palermo, Regione Sicilia, Italy

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