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Corona Virus Infection Among Liver Transplant Recipients

22. september 2020 opdateret af: Dr. Nahed A. Makhlouf, Assiut University

Corona Virus Infection Among Liver Transplant Recipients: A Multicenter Study

A new strain of coronavirus that caused severe respiratory disease in infected individuals was initially identified in China's Wuhan City in December 2019. Severe acute respiratory distress syndrome coronavirus-2 (SARS-CoV-2), which was responsible for the corona virus infectious disease-2019 (COVID-19).The World Health Organization declared that COVID-19 was a Public Health Emergency of International Concern on January 30,2020.

The impact of COVID-19 in liver recipients remains largely unknown but accumulating experience is going on.

Liver transplant recipients should have been classified as a risk group and should have received regular surveillance for COVID-19 throughout the pandemic.

Some reports suggest decreasing immunosuppression for infected recipients, if no recent rejection episodes. Paradoxically, others suggest that a reactive immune response might be the cause for severe tissue damage, and that immunosuppression might be protective from the postulated cytokine storm.

Some studies stated that the LT patients who are permanently on immunosuppressants could be particularly susceptible to SARS-CoV-2, and their prognosis could be worse in comparison to the normal population. They recommended that LT recipients should be closely monitored for SARS-CoV-2.

The LT society of India (LTSI) highlighted the potential of LT recipients as asymptomatic carriers and source of viral spread, and that SARS-CoV-2 can be transmitted to LT recipients. There are insufficient data on the relationship between immunosuppressive therapy and COVID-19 in LT recipients during this pandemic. However, the Beijing working party for liver transplantation suggested that LT recipients who were infected with SARS-CoV-2 should be treated with steroids for a short period to reduce the severity of pneumonia.

They also suggested that immunosuppressive therapies should be continued for both patients with mild COVID-19 and those who were not infected by the virus, and calcineurin inhibitor treatment dosage should be reduced in moderate to severe cases.

Neutralizing antibodies (NAbs) play an important role in virus clearance and have been considered as a key immune product for protection or treatment against viral diseases. Virus-specific NAbs, induced through either infection or vaccination, have the ability to block viral infection. SARS-CoV -2 specific NAbs reached their peak in patients from day 10-15 after the onset of the disease and remained stable thereafter in the patients. Antibodies targeting on different domains of S protein, including S1, RBD, and S2, may all contribute to the neutralization.

Al-Rajhi Liver Center is the only liver transplantation center in Upper Egypt that performed only 51 living donor liver transplantation (LDLT) cases since 2014, but it was used as isolation Hospital for COVID-19 cases from March to July, 2020. Communication with liver transplant cases during that period was via Telemedicine. Resuming usual Hospital activity as Tertiary Liver Center occurred in 15 August 2020. Similarly, other Hospitals in Egypt were designated as COVID-19 isolation Hospitals.

Studieoversigt

Status

Ukendt

Betingelser

Detaljeret beskrivelse

  1. Liver Transplant recipients in 3 liver transplant centers will answer survey including 21 questions (14 questions covers the demographic data, date since the operation and immunosuppressant medications and 11 questions related to Corona virus infection). (SARS-CoV-2 infection will be defined according to the Ministry of Health and population definitions of suspected and confirmed cases).
  2. Doing serological test searching for Neutralizing Ab against SARS-Corona virus 2 in the liver transplant recipients who accepted to give blood sample.

(It can be detected by Electrochemiluminescence immunoassay (ECLIA) method.

Undersøgelsestype

Observationel

Tilmelding (Forventet)

150

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Egypten
      • Assiut, Egypten
        • Rekruttering
        • Assiut University
        • Kontakt:
        • Kontakt:
        • Underforsker:
          • Amal A Mahmoud, MD
        • Underforsker:
          • Mohammed A Medhat, MD
        • Underforsker:
          • Bashir A Fadel, MD
        • Ledende efterforsker:
          • Nahed A Makhlouf, Professor
        • Underforsker:
          • Rasha O Refaay, Professor

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn
  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

Liver transplant recipients in 3 Liver Transplant Centers in Egypt and who accept to participate in the study.

Beskrivelse

Inclusion Criteria:

-Liver transplant recipients in 3 Liver Transplant Centers in Egypt and who accept to participate in the study

Exclusion Criteria:

  • Those who refuse to participate in the study.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: Kohorte
  • Tidsperspektiver: Tværsnit

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
The occurrence of corona virus infection (confirmed or suspected) among liver transplant recipients
Tidsramme: 1 month
1 month

Sekundære resultatmål

Resultatmål
Tidsramme
The presence of Neutralizing Ab against SARS-Corona virus 2 among liver transplant recipients whether who give symptoms for corona virus or asymptomatic and who accept to give blood sample
Tidsramme: 2 month
2 month

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Assiut University

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

15. september 2020

Primær færdiggørelse (Forventet)

1. november 2020

Studieafslutning (Forventet)

31. december 2020

Datoer for studieregistrering

Først indsendt

22. september 2020

Først indsendt, der opfyldte QC-kriterier

22. september 2020

Først opslået (Faktiske)

25. september 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

25. september 2020

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. september 2020

Sidst verificeret

1. september 2020

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 17300475

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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