Related Experiment Video
Updated: Dec 17, 2025

Preparation of Peripheral Blood Mononuclear Cell Pellets and Plasma from a Single Blood Draw at Clinical Trial Sites for Biomarker Analysis
Published on: March 20, 2021
Regulatory consideration on preparation and clinical use of COVID-19 convalescent plasma
Soner Yılmaz1, Nigar Ertuğrul Örüç2, Osman İlhami Özcebe3
1Regional Blood Center, University of Health Sciences Gülhane Training and Research Hospital, Ankara, Turkey.
Abstract:
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), the cause of coronavirus disease (COVID-19), spreading from Wuhan to worldwide has been emerged since December 2019. Although scientists and researchers have been racing to develop specific therapeutic agents or vaccines against SARS-CoV-2 since the identification of the agent, either a drug or a vaccine has not been approved to treat or to prevent COVID-19 up to date. On the base of historical experiences, Convalescent Plasma (CP), a passive antibody therapy, has been evaluated as a hopeful and potential therapeutic option since the beginning of the COVID-19 outbreak. Immune plasma had been used previously for the treatment of H1N1 influenza virus, SARS-CoV-1 and MERS-CoV epidemics successfully. In this scope competent authorities are responsible to set up certain principles and criteria for the collection and clinical use of COVID-19 Convalescent Plasma (CCP). This document has been prepared to aid both for the convalescent plasma suppliers and the clinicians. The first part encompasses the supply of CCP and the second part lead the clinical use of CCP for the treatment of patients with severe COVID-19 infection. Turkish Ministry of Health developed a guide on collection and clinical use of CCP and created a web-based monitoring system to follow-up the patients treated with convalescent plasma in universal. This follow-up process is thought to be crucial for the creation and development of current and future treatment modalities. This guide would be a pathfinder for clinicians and/or institutions those eager to conduct CCP treatment more effectively.
Insights
Convalescent plasma (CP) offers a potential passive antibody therapy for severe COVID-19 when vaccines are unavailable. This guide aids in the collection and clinical use of COVID-19 convalescent plasma (CCP) for effective patient treatment.
Area of Science:
- Infectious Diseases
- Immunology
- Public Health
Background:
- Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) causes COVID-19, with no approved treatments or vaccines available globally.
- Convalescent Plasma (CP), a passive antibody therapy, has historical precedent in treating viral epidemics like H1N1, SARS-CoV-1, and MERS-CoV.
- CP is being evaluated as a potential therapeutic option for COVID-19 due to the urgent need for treatment modalities.
Purpose of the Study:
- To provide a comprehensive guide for the collection and clinical application of COVID-19 Convalescent Plasma (CCP).
- To assist plasma suppliers and clinicians in the effective use of CCP for treating severe COVID-19 patients.
- To support the development of current and future COVID-19 treatment strategies through standardized practices.
Main Methods:
- Establishing principles and criteria for CCP collection and clinical use.
- Developing a guide detailing CCP supply and clinical application protocols.
- Implementing a web-based monitoring system for tracking patients treated with CCP.
Main Results:
- The guide addresses both the supply chain and clinical utilization of CCP.
- A national monitoring system facilitates the tracking of CCP treatment outcomes.
- Standardized protocols are crucial for the effective implementation of CCP therapy.
Conclusions:
- COVID-19 Convalescent Plasma (CCP) represents a viable passive antibody therapy option.
- This guide and monitoring system are essential for optimizing CCP treatment efficacy.
- Effective management of CCP is vital for advancing COVID-19 therapeutic strategies.

