Plasma exchange therapy with the crossflow membrane filtration method for post-COVID-19 conditions

ISRCTN ISRCTN13629437
DOI https://doi.org/10.1186/ISRCTN13629437
Secondary identifying numbers CMWO:09/2024
Submission date
07/06/2024
Registration date
10/06/2024
Last edited
10/06/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Infections and Infestations
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
Many patients with COVID-19 infection continue to have non-specific symptoms months after infection, such as persistent fatigue, cognitive issues, dyspnea (breathlessness), headaches, myalgias (muscle pain), sleep disturbances, anosmia/ageusia (loss of smell/taste), and post-exertion malaise (tiredness). These ongoing symptoms are referred to as post-COVID syndrome or long COVID. The rising number of long/post COVID cases poses a challenge to global health systems. The mechanisms behind post-COVID syndromes may include inadequate immune responses, autoimmunity activation, pro-inflammatory biomarkers persistence, endothelial dysfunction, and changes in the gut microbiota. Plasmapheresis, also known as plasma exchange, is a procedure that removes, treats and returns blood plasma to the body's circulation. Plasma exchange has shown moderate to significant clinical improvement in various inflammatory, autoimmune, and neurological diseases associated with autoantibodies by reducing blood levels of pro-inflammatory cytokines and autoimmune markers. The aim of this study is to evaluate the effect of plasmapheresis in long COVID patients compared to patients receiving placebo treatment.

Who can participate?
Patients aged 18-65 years with long COVID

What does the study involve?
Participants are randomly allocated to one of two groups. The treatment group undergoes plasmapheresis treatment with reinfusion of the cellular components at five day sessions with almost two days of rest in between. The placebo group undergoes dummy plasmapheresis treatment with the same setup as the treatment group but without the removal of plasma (reinfusion of both cellular and plasma components back to the patient). Clinical and laboratory outcomes will be assessed on day 0, day 5, day 10 day 28 and day 90

What are the possible benefits and risks of participating?
Participants will not receive financial compensation as the research is conducted without monetary backing. They will, however, earn the profound gratitude of the medical team and future patients may benefit from the study's findings. Occasionally, drawing blood from the arm may cause bruising, slight pain, or discomfort, and in extremely rare cases, an infection at the infusion site. The researchers will take all preventive measures to minimize these risks. Sometimes patients may feel lightheaded or slightly dizzy, especially during the procedure. This will take only a few minutes and decreases quickly. All information provided and test results will be treated confidentially. The researchers have the responsibility to inform the participants of all blood test results and to advise them on any treatment they think they need.

Where is the study run from?
Academic Hospital Paramaribo (Suriname)

When is the study starting and how long is it expected to run for?
November 2023 to December 2024

Who is funding the study?
Academic Hospital Paramaribo (Suriname)

Who is the main contact?
Dr Rosita Bihariesingh-Sanchit, rbihariesingh@azp.sr

Contact information

Dr Rosita Bihariesingh-Sanchit
Public, Scientific, Principal Investigator

Kwattaweg 639
Wanica
0000
Suriname

ORCiD logoORCID ID 0000-0003-0646-9507
Phone +597 (0)8753150
Email rbihariesingh@azp.sr

Study information

Study designSingle-centre double-blinded placebo-controlled randomized clinical study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital, Telephone
Study typeQuality of life, Treatment, Safety, Efficacy
Participant information sheet Not available in web format, please use the contact details to request a participant information sheet
Scientific titleSur-Long-Covid Trial: a placebo-controlled, double-blind proof of concept trial on the efficacy and safety of crossflow membrane plasmapheresis on long COVID-19 outcomes
Study hypothesisPlasma exchange with Crossflow membrane filtration is a safe and effective treatment for long-COVID conditions.
Ethics approval(s)

Approved 03/06/2024, Medical Ethical Review Committee of the Ministry of Health of Suriname (Henck Arron straat 64, Paramaribo, 0, Suriname; +597 (0)477601; secdir.volksgezondheid@gov.sr), ref: CMWO:09/2024

ConditionLong COVID
InterventionParticipants will be randomized 1:1 to one of the following groups:
1. Placebo arm, i.e. patients will receive dummy plasmapheresis treatment with the same setup as the treatment arm but without the removal of plasma (reinfusion of both cellular and plasma components back to patient)
2. Treatment arm, i.e. patients will receive plasmapheresis treatment with reinfusion of the cellular components. Plasmapheresis five day sessions of plasma exchanges with almost two days rest in between.

Clinical and laboratory outcomes will be assessed on day 0, day 5, day 10 day 28, and day 90.
Intervention typeDevice
Pharmaceutical study type(s)Not Applicable
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Crossflow membrane filtration with the Hemoclear device
Primary outcome measureLong-term COVID symptomatology measured using physical and cognitive questionnaires/parameters (Chalder scale, FAS, Promis) at baseline and 90 days
Secondary outcome measures1. Observation of the evolution of the fatigue measured by the percentage of patients whose fatigue has decreased by 30% on the Chalder scale at 90 days compared to its initial state measured at baseline
2. Quality of life measured using SF-36 at baseline, day 28 and 90 days
3. Clinical symptoms, functioning, and quality of life evaluated using PROMIS at baseline, day 28 and 90 days
4. Long COVID fatigue symptomology measured by the Fatigue Assessment Scale (FAS) at baseline, day 28 and 90 days
5. Rate and evolution of autoimmune antibody markers within 90 days (posthoc analysis based on funding) analysed with Luminex/ELISA at baseline, day 5, day 10, day 28 and day 90
Overall study start date01/11/2023
Overall study end date01/12/2024

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexBoth
Target number of participants24
Total final enrolment24
Participant inclusion criteria1. Age ≥18 years
2. Have had a confirmed SARS-COV2 infection (RT PCR) for at least 6 months
3. Have had at least three of the following symptoms for more than 6 months: fatigue, post-exercise malaise, shortness of breath, headache, diffuse myalgia/arthralgia, neuropathic pain, cognitive impairment, anosmia/ageusia
4. Above symptoms have an impact on daily activities, and/or have been on sick leave for more than 3 months, and/or going to bed for more than 2 hours a day
5. Have given free and informed written consent
6. Affiliated with sickness cost security
7. A score of 6 out of 11 or more on the Chalder fatigue questionnaire and a score of 65 out of 100 or less on the short physical function of 36 subscale 15
Participant exclusion criteria1. With suspicion of COVID-19 but not confirmed by RT-PCR test
2. Known history of any other pathology that could be confused with the diagnosis of long COVID: multiple sclerosis, autoimmune disease (lupus and Gougerot syndrome, inflammatory muscle disease, and myasthenia gravis), untreated hypothyroidism, major depression, regular use of narcotics
3. Unable to travel
4. Congenital or drug-induced coagulation disorders (oral or parenteral anticoagulation)
5. Contraindications to plasmapheresis such as lack of peripheral venous access or unstable cardiac pathology
6. Pregnant or breastfeeding women
Recruitment start date04/06/2024
Recruitment end date04/09/2024

Locations

Countries of recruitment

  • Suriname

Study participating centre

Academic Hospital Paramaribo
Flustraat 1-3
Paramaribo
0000
Suriname

Sponsor information

Academic Hospital Paramaribo
Hospital/treatment centre

Flustraa1-3
Paramaribo
0000
Suriname

Phone +597 (0)442222
Email credan@azp.sr
Website https://www.azp.sr
ROR logo "ROR" https://ror.org/01ky0w731

Funders

Funder type

Hospital/treatment centre

Academic Hospital Paramaribo

No information available

Results and Publications

Intention to publish date01/12/2025
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a peer-reviewed journal
IPD sharing planThe datasets generated during and/or analyzed during the current study will be available upon request from Rosita Bihariesingh-Sanchit (rbihariesingh@azp.sr or bihariesinghr@gmail.com)

Editorial Notes

07/06/2024: Study's existence confirmed by the Ministry of Health of Suriname.