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Observational Study With CICR-NAM as a Food for Special Medicinal Purposes in Post-COVID Syndrome (PCS)

NCT07798570 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2026-09-01

No results posted yet for this study

Summary

In patients with post-COVID syndrome, changes in tryptophan metabolism, energy metabolism, and the gut microbiome may occur. In an earlier nutritional study, patients with COVID-19 recovered their physical performance more quickly when taking nicotinamide (vitamin B3). Patients who responded to nicotinamide also developed post-COVID syndrome less frequently. At the University Hospital Schleswig-Holstein in Kiel, special nicotinamide tablets (CICR-NAM) were developed that release the active substance selectively in the lower intestine and have been shown to be very well tolerated in several studies.

Patients with post-COVID syndrome and documented tryptophan deficiency may therefore take one tablet (500 mg) of CICR-NAM daily for up to approximately 4 months as a food for special medicinal purposes within the therapy groups of the outpatient clinic for patients with post-COVID syndrome at the University Hospital Schleswig-Holstein in Kiel. This intake is far below the Upper Level defined by the European Food Safety Authority for lifelong daily intake (900 mg per day). Therefore, there are no safety concerns. CICR-NAM intake is intended to complement the therapy group programme by supporting energy metabolism.

Conditions

  • Post COVID Syndrome Long Covid

Interventions

DIETARY_SUPPLEMENT

CICR-NAM

Oral administration of CICR-NAM (controlled-ileocolonic-release nicotinamide) as a food for special medical purposes, one film-coated tablet (500 mg) daily for up to approximately 4 months, embedded in the therapy groups of the PCS outpatient clinic at UKSH Campus Kiel

Sponsors & Collaborators

  • University Hospital Schleswig-Holstein

    lead OTHER

Study Design

Allocation
NA
Purpose
SUPPORTIVE_CARE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-09-06
Primary Completion
2028-06-30
Completion
2028-06-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07798570 on ClinicalTrials.gov