Clinical trial Recruiting at 1 site Observational Ages 1 Year and up

Observational study of neutropenic patients in Cologne

Official title: The Cologne Cohort of Neutropenic Patients (CoCoNut) - a Non-interventional Cohort Study Assessing Risk Factors, Interventions, and Outcome of Immunosuppressed Patients With or Without Opportunistic Infections

Run by University Hospital of Cologne · NCT01821456 · Data updated 2026-11-12

This study looks at patients who have low white blood cell counts after chemotherapy for blood cancers to see how it affects their health and what treatments work best for them.

Quick facts

Study typeObservational
Ages1 Year and up
SexAll
Enrollment100000 (estimated)
SponsorUniversity Hospital of Cologne
Academic / other
Drugs / interventionschemotherapy
Locations1 site (Cologne, North Rhine-Westphalia)
StatusRecruiting
StartedJanuary 1995
Main results expectedDecember 2050
Study endsDecember 2050
Registry record updatedApril 1, 2013
Trial IDNCT01821456 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are immunosuppressed patients who have developed neutropenia following chemotherapy for cancer.

Probably not a fit

Patients who are not immunosuppressed or who have not undergone chemotherapy 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

The Cologne Cohort of Neutropenic Patients (CoCoNut) is a non-interventional cohort study that focuses on patients who develop neutropenia after chemotherapy for hematological malignancies. This prospective study aims to collect comprehensive data on risk factors, interventions, and outcomes for these immunosuppressed patients, including those with opportunistic infections. The research is conducted at the University Hospital of Cologne, where patients are monitored and assessed for their health status and treatment responses.

Why it matters

Potential benefit: If successful, this study could improve understanding of neutropenia management and enhance treatment strategies for immunosuppressed patients.

How similar studies have gone: Other observational studies have shown success in understanding the outcomes of neutropenic patients, making this approach both relevant and valuable.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* immunosuppressed patients

Exclusion Criteria:

* none

Where it's running

  • University Hospital of Cologne
    Cologne, North Rhine-Westphalia, Germany
    Recruiting

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.