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Sickness Symptoms after vaccination

Sickness Symptoms after vaccination

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00037440
Enrollment
100
Registered
2025-07-30
Start date
2025-10-22
Completion date
Unknown
Last updated
2026-06-22

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

Conditions

It is not a direct illness that is being investigated, but rather the effect of modulated symptom expectations resulting from appropriate medical information on the feeling of illness after vaccination.

Interventions

Group 1: Standard information (treatment as usual): Informed consent in a rational, matter-of-fact style by the physician. N=50 healthy patients. Group 2: Optimised education by study physician (eleme

Sponsors

Universitätsklinikum Essen
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients with chronic conditions such as high blood pressure, diabetes, chronic kidney disease

Exclusion criteria

Exclusion criteria: Lack of ability to provide information, severe allergic reactions in the past, ibuprofen intolerance, acute infection, patients with a blood clotting disorder, history of immunosuppressive treatment or current immunosuppressive treatment according to a doctor's letter, and continuous use of immunosuppressants.

Design outcomes

Primary

MeasureTime frame
Symptom expectation, symptom-related fears, self-reported physical and psychological sickness symptoms (physical symptoms, negative mood, anxiety, fatigue) using standardised questionnaires. On day 1, the patient is vaccinated in the morning and receives the baseline questionnaires. The first data collection then takes place at 3 p.m., at 8 p.m. in the evening, and at 8 a.m. on day 2, and data collection continues until the end of day 3. On day 7, a single new measurement is taken (around 8 a.m.). The procedure is repeated after the second vaccination with the same measurement intervals on days 1, 2 and 3.

Secondary

MeasureTime frame
- Immunological and neuroendocrine parameters: pro- and anti-inflammatory cytokines including TNF-a, IL-6, IL-10; CRP, interferon Y - Physiological parameters: Blood pressure, heart rate, body temperature - Subjective need for treatment, number of ibuprofen prescriptions filled, perceived effectiveness of anti-inflammatory medication, symptom recall using standardised questionnaires (see appendix) - Treatment adherence: number of patients who show up for the second vaccination (exploratory study objective due to small sample size)

Countries

Germany

Contacts

Public ContactHana Rohn

Universitätsklinikum Essen

hana.rohn@uk-essen.de0201 723 84170

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 29, 2026