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COVID-19 VaccinesNCT04895007

Comparative Evaluation of Covid-19 Vaccines Response

An observational study of COVID-19 Vaccines, run by Karamanoğlu Mehmetbey University at 4 sites in Turkey (Türkiye).

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Study Population Population with vaccinated with three different Covid Vaccines (Inactive Vaccine (Sinovac Life Sciences, Beijing, China), recombinant human adenovirus serotype number 26 (rAd26 of Sputnik V), mRNA Vaccine (Pfizer/BionTEC). Read more about this study

Who is it for?
Ages 18 to 99 yearsHealthy volunteers can take part
Conditions the study is for
COVID-19 Vaccines
What is being tested?
Covid-19 Inactive Vaccine, recombinant human adenovirus serotype number 26, mRNA VAccine
Type of treatment
Vaccines
How many people
1,500 participants
Where
4 sitesTurkey (Türkiye)
Study dates
1 Jun 2021to 1 Jun 2022
Phase
Observational
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 to 99 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: - Any person, male or female, over 18 years of age.

Who may be able to join

  • Any person, male or female, over 18 years of age.
  • The patient has signed an informed consent form.
  • The patient was vaccinated with SARS-CoV-2 vaccine.

Who cannot join

  • Inability to give clear information (person in an emergency, difficulty understanding the subject, etc.)
  • Person under safeguard of justice
  • Person under guardianship or curator ship.

Trial locations and contacts

4 sites in 1 country.

Turkey (Türkiye)4 sites, 4 recruiting
  • Karamanoglu Mehmetbey University

    Karaman, 70200

    Taha T Bekci, Prof.Dr., +905333787676, doktortaha@gmail.com

    Recruiting
  • Selcuk University

    Konya, 42250

    Recep Kesli, Prof.Dr., +905454605460, recepkesli@gmail.com

    Recruiting
  • Tekirdag Namık Kemal University, Faculty of Medicine

    Tekirdağ

    Nejat Altıntas, Assoc.Prof.Dr., nejataltintas@gmail.com

    Not yet recruiting
  • Karadeniz Technic University, Faculty of Medicine

    Trabzon

    Tevfik Ozlu, Prof.Dr., ozlutevfik@gmail.com

    Not yet recruiting

Other trials in Turkey (Türkiye)

About this study

Official title: Comparative Evaluation of Covid-19 Vaccines Response and Progression in Different Covid-19 Vaccines Groups

Study Population

Population with vaccinated with three different Covid Vaccines (Inactive Vaccine (Sinovac Life Sciences, Beijing, China), recombinant human adenovirus serotype number 26 (rAd26 of Sputnik V), mRNA Vaccine (Pfizer/BionTEC). This is multi center study, 5 centers will be joined to study from different part of the country. Approximately 1500 people will be enrolled to study.

Read the detailed description

Aim of Study

  • to evaluate Anti-SARS-CoV-2 IgG Antibody and Neutralizing Antibody response in different Vaccine Groups
  • to evaluate progression of the vaccine response after 2, 6, and 12 Months after Vaccination in different Vaccine Groups, and compare antibody response in different Vaccines Group.
  • It was also aimed to evaluate effect of the age, gender, co-morbid conditions such as COPD, DM, Heart Failure, Covid Infection on IgG Antibody and Neutralizing Antibody response.

Anti SARS CoV2 IgG antibody levels will be measured with chemiluminescence method (CHEM) by using ADVIA Centaur XP Immunassay System (Siemens Helthcare, GmbH, Germany) and Anti SARS CoV2 IgG reactive (Siemens Helthineers, GmbH, Germany).

Neutralizing Capacity of Anti-SARS-CoV-2 Antibodies against SARS CoV2 levels will be determined with ELISA method (ELx 808, ELISA Microplate Absorbance Reader, BioTek Instruments Inc, Winooski, VT, USA) by using Euroimmun SARS-CoV-2 NeutraLISA Assay (EUROIMMUN, Medizinische Labordiagnostika AG, Germany).

Being tested
Covid-19 Inactive Vaccine, recombinant human adenovirus serotype number 26, mRNA VAccine

What participants receive

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

  • Covid-19 Inactive Vaccine, recombinant human adenovirus serotype number 26, mRNA VAccineBiological

    Anti-SARS-CoV-2 IgG Antibody and Neutralizing Antibody will be evaluated 2, 6, 12 Months after second dose.

Study groups in NCT04895007
Study groupRoleWhat they receive
Group, vaccinated with Inactive Vaccine (Sinovac Life Sciences, Beijing, China).- Any person, male or female, over 18 years of age, were vaccinated with Inactive Vaccine.
Receives: Biological: Covid-19 Inactive Vaccine, recombinant human adenovirus serotype number 26, mRNA VAccine
Group, vaccinated with recombinant human adenovirus serotype number 26 (rAd26 of Sputnik V).- Any person, male or female, over 18 years of age, were vaccinated with recombinant human adenovirus serotype number 26.
Receives: Biological: Covid-19 Inactive Vaccine, recombinant human adenovirus serotype number 26, mRNA VAccine
Group, vaccinated with mRNA Vaccine (Pfizer/BionTEC).- Any person, male or female, over 18 years of age, were vaccinated with mRNA Vaccine.
Receives: Biological: Covid-19 Inactive Vaccine, recombinant human adenovirus serotype number 26, mRNA VAccine

What is being measured

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

  1. Change from baseline in Anti-SARS-CoV-2 IgG Antibody and Neutralizing Antibody at 12 months

    • Baseline Anti-SARS-CoV-2 IgG Antibody and Neutralizing Antibody levels at 14th day after second dose
    • Change of Anti-SARS-CoV-2 IgG Antibody and Neutralizing Antibody levels at 3 Months after second dose
    • Change of Anti-SARS-CoV-2 IgG Antibody and Neutralizing Antibody levels at 6 Months after second dose
    • Change of Anti-SARS-CoV-2 IgG Antibody and Neutralizing Antibody levels at 12 Months after second dose

    Measured: 12 Months

Timeline

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

  1. First posted20 May 2021
  2. Study start1 Jun 2021
  3. Primary completion1 Jun 2022 (estimated)
  4. Study completion1 Jun 2022 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Case crossover
Time perspective
Prospective
Enrolment
1,500 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04895007
Sponsor's protocol ID
2021-04-30T1
Status last verified
Jul 2021
First submitted
14 May 2021
Last updated
15 Jul 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of COVID-19 Vaccines, run by Karamanoğlu Mehmetbey University at 4 sites in Turkey (Türkiye).

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: status not confirmed, as of the sponsor's last update on 15 Jul 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in Turkey (Türkiye). 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.

Are results available for this study?

Results are not available in the source record.

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

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change from baseline in Anti-SARS-CoV-2 IgG Antibody and Neutralizing Antibody at 12 months (time frame: 12 Months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 15 Jul 2021.

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