Investigating how obesity affects severe COVID-19
Official title: SARS-CoV-2 Antibody-mediated Inflammatory Responses by Macrophages in Individuals With and Without Obesity
Run by Franciscus Gasthuis · NCT06968442 · Data updated 2026-11-12
This study is trying to see how obesity affects the immune response and severity of COVID-19 by comparing blood samples from obese patients and non-obese healthcare workers.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 65 Years |
| Sex | All |
| Enrollment | 60 (estimated) |
| Sponsor | Franciscus Gasthuis Academic / other |
| Locations | 1 site (Rotterdam, South Holland) |
| Status | Recruiting |
| Started | April 22, 2025 |
| Main results expected | December 31, 2025 |
| Study ends | April 22, 2026 |
| Registry record updated | May 16, 2025 |
| Trial ID | NCT06968442 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults aged 18 to 65 with a BMI of 30 kg/m² or higher who are patients at Franciscus Hospital.
✕Probably not a fit
Patients with acute infections, systemic immunological disorders, or those on immune-modulatory medications may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study examines the role of obesity in the pathophysiology of severe COVID-19 by comparing blood samples from obese patients eligible for bariatric surgery with those from non-obese healthcare workers. It is a mono-center, prospective cohort study conducted at Franciscus Hospital, where participants will undergo venipuncture to collect blood samples for analysis. The goal is to understand how obesity may influence immune responses and disease severity in COVID-19 patients.
Why it matters
Potential benefit: If successful, this study could provide insights into how obesity impacts COVID-19 severity, potentially leading to better treatment strategies for affected patients.
How similar studies have gone: Other studies have explored the relationship between obesity and COVID-19 outcomes, suggesting that this approach may yield valuable insights.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion criteria: Cohort 1 (obesity cohort) * ≥18 and ≤65 years of age * BMI ≥30 kg/m² * Patient of Franciscus Hospital Cohort 2 (control cohort) * ≥18 and ≤65 years of age * BMI \<25 kg/m² * Healthcare workers of Franciscus Hospital Exclusion Criteria (for both cohorts): * Acute infection or current systemic immunological disorders * Use of immune-modulatory medication (i.e., corticosteroids and biologicals) * Hormonal therapy
Where it's running
-
Franciscus
Rotterdam, South Holland, Netherlands Recruiting
Study contacts
- Principal investigator: David S.Y. Ong, M.D., Ph.D., Pharm.D., M.Sc. — Franciscus Hospital
- Study coordinator: Willem A Mak, M.Sc.
- Email: ashwinmak98@gmail.com
- Phone: +316 40897778
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Comparative Immunogenicity of Respiratory Virus Vaccines (CIRV2) in Adults
This study tests and compares the immune responses and tolerability of the latest COVID-19 vaccines from Novavax and Pfizer/BioNTech in adults at risk for severe COVID-19.
-
Omicron-based COVID-19 vaccine with Matrix-M given as a single dose in older adults and high-risk individuals
A single-dose Omicron-subvariant vaccine with Matrix-M is tested to see if it is safe and can induce an immune response in adults 65+ and in younger adults with conditions that raise the risk of severe COVID-19, who were previously vaccinated.
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Secutrelvir for nonhospitalized COVID-19 in teens and adults
This study tests whether secutrelvir can help nonhospitalized people with COVID-19 see faster symptom relief compared with a placebo.
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Virological Monitoring of Seasonal Respiratory Infections in France
This project tests how often common respiratory viruses show up in patients seen by primary care doctors in metropolitan France during the fall and winter.
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COVID-19 Registry at San Matteo (SMACORE) - patient-matching observational registry
This registry tests how COVID-19 patients are being treated and progress across San Matteo in Pavia to understand patterns and outcomes.
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MDX2301 in healthy adults and adults at higher risk for severe COVID-19
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.