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Recruiting Phase 2 NCT05820126

NCT05820126 Cold Versus Room Temperature Storage of Platelets for Bleeding in Hematologic Malignancy - a Pilot Trial

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Clinical Trial Summary
NCT ID NCT05820126
Status Recruiting
Phase Phase 2
Sponsor Ottawa Hospital Research Institute
Condition Hematologic Malignancy
Study Type INTERVENTIONAL
Enrollment 50 participants
Start Date 2025-05-16
Primary Completion 2026-06-01

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
Cold-stored platelet concentrate

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 50 participants in total. It began in 2025-05-16 with a primary completion date of 2026-06-01.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

This is a pilot trial to discover the feasibility of recruiting 50 pts over the course of 12 months. The trial is testing the efficacy of using cold-stored vs. room temperature stored (current standard of care) platelets to treat bleeding in persons with hematological disorders and thrombocytopenia.

Eligibility Criteria

Inclusion Criteria: 1. Adult patients (age ≥ 18) admitted to Malignant Hematology ward with hematologic malignancy or marrow aplasia, this may include patients undergoing chemotherapy, immunotherapy, or hematopoietic stem cell transplant or patients admitted for symptom management. 2. Moderate thrombocytopenia, platelet concentration 10-100 x109/L 3. Platelet transfusion ordered to treat bleeding Exclusion Criteria: 1. Severe thrombocytopenia (platelet concentration \<10 x 109/L) 2. Known platelet refractoriness requiring HLA or HPA selected platelet concentrates 3. International normalized ratio (INR) \>2.0 4. Activated partial thromboplastin time (aPTT) \>40 seconds 5. Therapeutic anticoagulation (unfractionated heparin, low molecular weight heparin, warfarin, direct oral anticoagulant) 6. Known congenital bleeding disorder 7. History of unprovoked venous thromboembolic disease 8. Transfusion of platelet concentrate for \>grade 2 bleeding in preceding 24 hours 9. Order for multiple platelet transfusion at once 10. Refusal of blood transfusion 11. Prior participation in CoVeRTS-HM trial 12. Participation in other clinical trials with interventions that may affect CoVeRTS-HM treatment or outcome 13. Unable or unwilling to provide informed consent

Contact & Investigator

Central Contact

Johnathan M Mack, MD

✉ johnathan.mack.med@ssss.gouv.qc.ca

📞 514-934-1934

Principal Investigator

Johnathan MAck, MD

STUDY CHAIR

McGill University

Frequently Asked Questions

Who can join the NCT05820126 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Hematologic Malignancy. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT05820126 trial and what does that mean for participants?

Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.

Is NCT05820126 currently recruiting?

Yes, NCT05820126 is actively recruiting participants. Contact the research team at johnathan.mack.med@ssss.gouv.qc.ca for enrollment information.

Where is the NCT05820126 trial being conducted?

This trial is being conducted at Ottawa, Canada.

Who is sponsoring the NCT05820126 clinical trial?

NCT05820126 is sponsored by Ottawa Hospital Research Institute. The principal investigator is Johnathan MAck, MD at McGill University. The trial plans to enroll 50 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: November 2026  ·  Data Methodology