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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05573386
Other study ID # MPRP
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date August 9, 2021
Est. completion date August 5, 2023

Study information

Verified date October 2022
Source Andrews Research & Education Foundation
Contact Jessi Truett
Phone 8509168570
Email jessica.truett@andrewsref.org
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The goal of this prospective, observational study is to compare the quality and quantity of the cellular content of platelet-rich plasma harvested after administering one of two cell-stimulating proteins, filgrastim and pegfilgrastim. The main question it aims to answer is: • Will participants have a similar cellular content when comparing a 4-day filgrastim treatment to a one-day pegfilgrastim treatment? Participants will have the following intervention administered: - 130mL of blood will be drawn on the first visit after consent and in followup visits after administering treatment (4 days for filgrastim, 7 days for pegfilgrastim) - Half of all participants will receive filgrastim first, followed by pegfilgrastim 8 weeks after filgrastim treatment concludes. The other half will receive the treatments in reverse order Researchers will compare the quality and quantity of cell content after each treatment administration as well as comparing differences in data dependent on which order treatment was given.


Description:

The proposed study is a prospective, randomized controlled, single-center laboratory study involving 10 healthy volunteers. Once the potential participant has cleared the screening, consented to the study procedures, completed the medical interview, and laboratory blood testing, the subject will undergo two serial mobilization events. The scheduling of the mobilization events will be varied across the 10 participants to counter sequencing effects of the mobilization events. 5 healthy donors will be administered standard filgrastim mobilization regimen of 10 mcg/kg per day for 4 days. This will be followed by a standard pegfilgrastim mobilization regimen consisting of one 6 mg injection separated by 8 weeks for 5 of the participants. The other 5 healthy donors will receive the reverse order of the pharmaceutical agent, first pegfilgrastim followed by filgrastim. On the first day of the study, a first blood draw of 130 mL will be performed which will be used to create standard PRP for laboratory testing and subjects will begin a filgrastim or pegfilgrastim dosage series. After the specified time (4 days for filgrastim and 7 days for pegfilgrastim), a second 130 mL of blood will be harvested and processed with the Arthrex Angel system to create M-PRP for laboratory testing. The standard PRP and M-PRP cellular content will be studied and quantified in vitro with cell counting, cell culturing and protein analysis. 8 weeks after the second blood harvest, the subjects will return for a third 130 mL of blood draw, followed by administration of a second mobilizing agent (pegfilgrastim or filgrastim). After the specified time (4 days for filgrastim and 7 days for pegfilgrastim), the patients will return for a fourth blood draw of 130mL. The sample will be processed with the Arthrex Angel system to create M-PRP for laboratory testing. The cellular content of the M-PRP product will be studied and quantified in vitro with cell counting, cell culturing and protein analysis. Thereafter, the cellular content of M-PRP product will be compared between filgrastim and pegfilgrastim mobilization agents.


Recruitment information / eligibility

Status Recruiting
Enrollment 10
Est. completion date August 5, 2023
Est. primary completion date August 5, 2023
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Male
Age group 19 Years to 39 Years
Eligibility Inclusion Criteria: - Healthy 19-39 of age and weight 50-100kg - Subject consents to coming 5 serial days for filgrastim treatment and additional blood draw, 8 weeks later two additional visits for pegfilgrastim treatment and blood draw 7 days later. This order of administration will be provided to half of the participants, where as the other half will receive the same treatments in reverse order. Exclusion Criteria: - Female - Weight < 50kg or > 100kg - Previous allergic reaction to filgrastim, PEG, lidocaine, latex, acrylic, or any other injectable numbing agent - History of Diabetes - Abdominal tenderness to palpation - Unclear lung fields on physical exam - Splenomegaly - Significant cardiovascular, renal, hepatic, or pulmonary disease - White blood cell count (WBC) over 20,000/microliter (mcL) upon initial complete blood count (CBC) screening - Blood disorders, autoimmune disorders, disorders requiring immunosuppression, cancer, an ongoing infectious disease, sickle cell, or other blood disorders.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Filgrastim
human granulocyte colony-stimulating factor (G-CSF) protein obtained from the bacterial fermentation of a strain of E. coli. transformed with a genetically engineered plasmid containing the human G-CSF gene; administered via syringe
Pegfilgrastim
long-acting covalent conjugate of recombinant methionyl human filgrastim and monomethoxypolyethylene glycol (PEG); administered via syringe

Locations

Country Name City State
United States Andrews Research and Education Foundation Gulf Breeze Florida

Sponsors (2)

Lead Sponsor Collaborator
Andrews Research & Education Foundation Florida

Country where clinical trial is conducted

United States, 

References & Publications (50)

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* Note: There are 50 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Arthrex Angel system for PRP concentration Machine utilizing centrifugation and optics to precisely separate cell types using buffy coat method. . All cells have a density range and non-uniformly after centrifugation. Arthrex Angel system has the unique ability to isolate specific cells using inherent properties of cells that absorb differing wavelengths of light. The settings on the system can be controlled to adjust the proportion of cells versus plasma. Increasing the setting from 7% to 15%, the Angel system isolates more cells from a deeper portion of the buffy coat, which results in capturing more HPCs per volume. at time of enrollment
Primary Arthrex Angel system for PRP concentration Machine utilizing centrifugation and optics to precisely separate cell types using buffy coat method. . All cells have a density range and non-uniformly after centrifugation. Arthrex Angel system has the unique ability to isolate specific cells using inherent properties of cells that absorb differing wavelengths of light. The settings on the system can be controlled to adjust the proportion of cells versus plasma. Increasing the setting from 7% to 15%, the Angel system isolates more cells from a deeper portion of the buffy coat, which results in capturing more HPCs per volume. 8 weeks from enrollment, upon switch in treatment from filgrastim/pegfilgrastim
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