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Risk factors for COVID-19 vaccine failure.

Risk factors for COVID-19 vaccine failure. - RisCoin

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00026804
Enrollment
5000
Registered
2021-10-06
Start date
2021-10-07
Completion date
Unknown
Last updated
2026-01-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

U07.1 K50 K51 K52

Interventions

Group 1: Fully vaccinated healthcare workers incl. students and trainees Group 2: Fully vaccinated patients with psychiatric illness and severe psychological distress who are not receiving immunosuppr

Sponsors

Klinikum der Universität München, Campus Großhadern
Lead Sponsor

Eligibility

Sex/Gender
All
Age
12 Years to No maximum

Inclusion criteria

Inclusion criteria: - Fully vaccinated against COVID-19 (one or two vaccinations depending on manufacturer), male, female, diverse. - Age: > 18 years, for CED patients >12 years - Sufficient knowledge of the German language - Internet access for online-supported survey - Signed informed consent to participate in the study (for minors additionally of the persons with custody) - Belonging to one of the three groups - Employees of the LMU University Hospital, or trainees/students/interns at the hospital - Patients with chronic inflammatory bowel diseases with immunosuppressive therapy with connection to CED outpatient clinic at LMU University Hospital - Patients with mental illnesses without immunosuppressive therapy with connection to the Psychiatric Clinic at LMU University Hospital

Exclusion criteria

Exclusion criteria: - Inclusion criteria not met - Psychiatric illness with recent (within the past year) or active suicidal ideation or behaviors/other reasons that may make the potential participant unsuitable for the study in the opinion of the investigator(s). - Individuals who have received blood or plasma products or immunoglobulins in the 60 days prior to the study.

Design outcomes

Primary

MeasureTime frame
Identification of the genetic, metabolic, or lifestyle factors associated with the magnitude and expression of the immune response after SARS-CoV-2 immunization, taking into account known factors influencing the immune response of COVID-19 vaccination, such as type of vaccine, interval between 1st or 2nd vaccine dose, age, and presence of a primary or secondary (possibly drug-induced) immunodeficiency.

Secondary

MeasureTime frame
Survey-related questions: - What is the acceptability of healthcare workers regarding participation in a pseudonymous online survey and monitoring of symptoms via a mobile app? Virological-methodological questions: - Is the validity of determining AK from dried blood on filter cards compared to determining neutralizing AK in blood for assessing vaccination protection comparable? - After COVID-19 vaccination, what is the percentage of neutralizing AK to IgG-AK against wild type and its variants? Epidemiologic questions: - What are the symptoms and severity of breakthrough infections in the studied populations? - What is the risk of infection for employees of the LMU hospital who had contact with an infected person (patient, employee, private contact person)? Psychological question: - What is the level of stress in the three cohorts studied during the study period? - For healthcare workers, does the stress level depend on the occupational group and or the area of assignment? - How good is the correlation of questionnaire collected stress score (PSQ) and measured immunologically relevant stress markers in blood and saliva? Metabolic questions: - Do dietary habits influence vaccination response? - Does the intake of supplements and vitamins influence the vaccination response? - Does the consumption of noxious substances (cigarettes, alcohol) influence the vaccination response?

Countries

Germany

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026