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ClinicalTrials.gov public records Last synced Sep 26, 2026, 12:04 PM EDT

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Showing 1–11 of 11 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Purpura, Thrombotic Thrombocytopenic, TTP
Interventions
N-Acetylcysteine
Drug
Lead sponsor
Bloodworks
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Sickle Cell Disease, Sickle Cell Anemia
Interventions
N-Acetylcysteine
Drug
Lead sponsor
Bloodworks
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Healthy Volunteers
Interventions
Biotin labeled platelets
Biological
Lead sponsor
Bloodworks
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Seattle, Washington
Completed No phase listed Observational

Joint Health Study

NCT03358836
Conditions
Hemophilia B
Interventions
Not listed
Lead sponsor
Bloodworks
Other
Eligibility
16 Years and older · Male only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
5
States / cities
Los Angeles, California • San Diego, California • New Orleans, Louisiana + 2 more
Conditions
Hemorrhage, Platelets; Defect, Bleeding, Surgical Blood Loss
Interventions
Cold stored platelets in 100% plasma stored for 10-14 days, Room temperature stored platelets in 100% plasma stored for up to 7 days
Biological
Lead sponsor
Moritz Stolla, MD
Other
Eligibility
18 Years to 100 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Seattle, Washington
Not listed Phase 1 Interventional Accepts healthy volunteers

Cold Apheresis Platelets in PAS

NCT02754414
Conditions
Platelet Transfusion
Interventions
Apheresis platelet collection, Refrigerated storage of apheresis platelets in PAS/plasma, Infusion of aliquot of autologous radiolabeled platelets, In vitro tests
Procedure · Other · Radiation
Lead sponsor
Bloodworks
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Seattle, Washington
Conditions
Hemophilia A
Interventions
Ideal Body Weight First, Actual Body Weight First
Other
Lead sponsor
Bloodworks
Other
Eligibility
12 Years and older · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
4
States / cities
Portland, Oregon • Seattle, Washington • Spokane, Washington
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Reversal of Aspirin Antiplatelet Therapy With Cold Stored Platelets

NCT05111028
Conditions
Reversal of Platelet Aggregation Inhibitors
Interventions
Autologous Room Temperature stored Platelet transfusion, Autologous Cold Stored Platelet transfusion
Biological
Lead sponsor
Bloodworks
Other
Eligibility
18 Years to 59 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Seattle, Washington
Completed Phase 4 Interventional Results available

Immunomodulation Following Transfusion

NCT00810810
Conditions
Blood Component Transfusion
Interventions
Standard blood components, Leukoreduced blood components, Leukoreduced and irradiated
Biological
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
287 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
2
States / cities
Seattle, Washington
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Reversal of Dual Antiplatelet Therapy With Cold Stored Platelets

NCT03787927
Conditions
Bleeding, Platelet Dysfunction Due to Drugs, Platelet Dysfunction
Interventions
Autologous Platelet Transfusion (room-temperature-stored), Autologous Platelet Transfusion (cold-stored 5 days), Autologous Platelet Transfusion (cold-stored 10 days), Autologous Platelet Transfusion (cold-stored 15 days), Aspirin, Clopidogrel
Drug
Lead sponsor
Bloodworks
Other
Eligibility
18 Years to 59 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Seattle, Washington
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of Whole Blood Cold Stored Platelets

NCT02006368
Conditions
Healthy
Interventions
Blood Collection and autologous re-infusion
Other
Lead sponsor
Bloodworks
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Seattle, Washington