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Chronic Liver DiseasePhase 4NCT04775069

Antibody Response to COVID-19 Vaccines in Liver Disease Patients

A Phase 4 study testing BNT162b2, CoronaVac and AZD1222 in people with Chronic Liver Disease, run by Humanity & Health Medical Group Limited at 1 site in Hong Kong.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Currently the Pfizer-Biontech (mRNA), Sinovac (inactivated virus) and Astrazeneca-Oxford (adenovirus-vector) COVID-19 vaccines are available for vaccination in HK. The American Association of Liver Disease has recently published consensus statements for COVID-19 vaccination in subjects with chronic liver disease… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Chronic Liver Disease
What is being tested?
BNT162b2, CoronaVac and AZD1222
Could I receive a placebo?
No, everyone receives an active treatment
How many people
232 participants
Where
1 siteHong Kong
Study dates
21 May 2021to 30 Sep 2023
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects with chronic liver disease (CLD) at the Humanity and Health Medical Group and eligible for the HK government vaccination programme;
  • Able to understand and sign informed consent.;
  • Underlying CLD- defined as patients with chronic hepatitis B or C infections, liver cirrhosis, metabolic associated liver disease, hepatocellular carcinoma, alcoholic liver disease, autoimmune hepatitis, hemochrombtosis.

Who cannot join

  • Patients contraindicated for the COVID -19 Vaccination Program due to uncontrolled co-morbitities;
  • Past allergies to other vaccines;
  • Pregnant subjects.

Trial locations and contacts

1 site in 1 country.

Hong Kong1 site
  • Humanity & Health Medical Group Limited

    Hong Kong

Other trials in Hong Kong

About this study

Official title: A Prospective Study Comparing the Antibody Response of Subjects With Chronic Liver Disease to mRNA, Inactivated Virus and Adenovirus Vector COVID-19 Vaccines

Currently the Pfizer-Biontech (mRNA), Sinovac (inactivated virus) and Astrazeneca-Oxford (adenovirus-vector) COVID-19 vaccines are available for vaccination in HK. The American Association of Liver Disease has recently published consensus statements for COVID-19 vaccination in subjects with chronic liver disease (CLD). Patients with CLD have dysregulated innate and adaptive immune response that may be associated with vaccine hypo-responsiveness and there are no data as to whether these patients may respond differently to the various vaccines. The Humanity and Health Medical Center (HHMC) is an active participant of the HK government COVID-19 vaccination programs and patients with CLD follow-up at HHMC will have access to the three different vaccines. The aim of this prospective study is to compare the antibody response of CLD subjects to the Pfizer-Biontech (mRNA), Sinovac (inactivated virus) and Astrazeneca-Oxford (adenovirus-vector) COVID-19 vaccines.

Being tested
BNT162b2, CoronaVac, AZD1222

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BNT162b2Biological

    Intramuscular injection

  • CoronaVacBiological

    Intramuscular injection

  • AZD1222Biological

    Intramuscular injection

Study groups in NCT04775069
Study groupRoleWhat they receive
mRNA GroupActive comparatorThe subjects will be vaccinated with the mRNA vaccine (Pfizer-Biontech).
Receives: Biological: BNT162b2
Inactivated Virus GroupActive comparatorThe subjects will be vaccinated with inactivated SARS Cov-2 (Sinovac).
Receives: Biological: CoronaVac
Adenovirus-vector GroupActive comparatorThe subjects will be vaccinated with adenovirus-vector COVID-19 vaccine (Astrazeneca-Oxford).
Receives: Biological: AZD1222

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Antibody response

    Covid-19 Antibodies IgG titres at 4 weeks after second dose

    Measured: at 4 weeks after second dose

Secondary outcomes (1)
  1. Antibody response

    Covid-19 Antibodies IgG titres at one year after second dose

    Measured: at one year after second dose

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Mar 2021
  2. Study start21 May 2021
  3. Primary completion30 Sep 2023
  4. Study completion30 Sep 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Prevention
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
232 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04775069
Sponsor's protocol ID
HHCTC_COVID-19_VACCINE_Ab
Status last verified
Oct 2023
First submitted
24 Feb 2021
Last updated
4 Oct 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Fix OK, Blumberg EA, Chang KM, Chu J, Chung RT, Goacher EK, Hameed B, Kaul DR, Kulik LM, Kwok RM, McGuire BM, Mulligan DC, Price JC, Reau NS, Reddy KR, Reynolds A, Rosen HR, Russo MW, Schilsky ML, Verna EC, Ward JW, Fontana RJ; AASLD COVID-19 Vaccine Working Group. American Association for the Study of Liver Diseases Expert Panel Consensus Statement: Vaccines to Prevent Coronavirus Disease 2019 Infection in Patients With Liver Disease. Hepatology. 2021 Aug;74(2):1049-1064. doi: 10.1002/hep.31751.

    PubMed 33577086
  • Mulligan MJ, Lyke KE, Kitchin N, Absalon J, Gurtman A, Lockhart S, Neuzil K, Raabe V, Bailey R, Swanson KA, Li P, Koury K, Kalina W, Cooper D, Fontes-Garfias C, Shi PY, Tureci O, Tompkins KR, Walsh EE, Frenck R, Falsey AR, Dormitzer PR, Gruber WC, Sahin U, Jansen KU. Phase I/II study of COVID-19 RNA vaccine BNT162b1 in adults. Nature. 2020 Oct;586(7830):589-593. doi: 10.1038/s41586-020-2639-4. Epub 2020 Aug 12.

    PubMed 32785213
  • Zhang Y, Zeng G, Pan H, Li C, Hu Y, Chu K, Han W, Chen Z, Tang R, Yin W, Chen X, Hu Y, Liu X, Jiang C, Li J, Yang M, Song Y, Wang X, Gao Q, Zhu F. Safety, tolerability, and immunogenicity of an inactivated SARS-CoV-2 vaccine in healthy adults aged 18-59 years: a randomised, double-blind, placebo-controlled, phase 1/2 clinical trial. Lancet Infect Dis. 2021 Feb;21(2):181-192. doi: 10.1016/S1473-3099(20)30843-4. Epub 2020 Nov 17.

    PubMed 33217362
  • Folegatti PM, Ewer KJ, Aley PK, Angus B, Becker S, Belij-Rammerstorfer S, Bellamy D, Bibi S, Bittaye M, Clutterbuck EA, Dold C, Faust SN, Finn A, Flaxman AL, Hallis B, Heath P, Jenkin D, Lazarus R, Makinson R, Minassian AM, Pollock KM, Ramasamy M, Robinson H, Snape M, Tarrant R, Voysey M, Green C, Douglas AD, Hill AVS, Lambe T, Gilbert SC, Pollard AJ; Oxford COVID Vaccine Trial Group. Safety and immunogenicity of the ChAdOx1 nCoV-19 vaccine against SARS-CoV-2: a preliminary report of a phase 1/2, single-blind, randomised controlled trial. Lancet. 2020 Aug 15;396(10249):467-478. doi: 10.1016/S0140-6736(20)31604-4. Epub 2020 Jul 20.

    PubMed 32702298

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing BNT162b2, CoronaVac and AZD1222 in people with Chronic Liver Disease, run by Humanity & Health Medical Group Limited at 1 site in Hong Kong.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Hong Kong. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Antibody response (time frame: at 4 weeks after second dose). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04775069, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Oct 2023.

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