General information
  • Disease category Lung Cancer (BASEC)
  • Recruitment status recruitment not started yet (BASEC/ICTRP)
  • Trial sites
    Basel, Chur, St. Gallen, Winterthur
    (BASEC)
  • Contact Maximilian Bösch, Ph.D. maximilian.boesch@h-och.ch (BASEC)
  • Data Source(s) BASEC: Import from 11.09.2025 ICTRP: N/A
  • Last update 11.09.2025 12:20
HumRes66671 | SNCTP000006360 | BASEC2025-00650

Relevance of a High-Fiber Diet for Cancer Immunotherapy in Lung Cancer

  • Disease category Lung Cancer (BASEC)
  • Recruitment status recruitment not started yet (BASEC/ICTRP)
  • Trial sites
    Basel, Chur, St. Gallen, Winterthur
    (BASEC)
  • Contact Maximilian Bösch, Ph.D. maximilian.boesch@h-och.ch (BASEC)
  • Data Source(s) BASEC: Import from 11.09.2025 ICTRP: N/A
  • Last update 11.09.2025 12:20

Summary description of the study

In the present study 'Fiber-Boost', we investigate how a high-fiber diet affects the immunotherapy of advanced lung cancer and what effects it has on the gut microbiome (i.e., the bacteria in the gut) as well as the immune system. Study participants will be assigned to either a test group or a control group. Only patients in the test group will undergo a high-fiber diet. The study lasts 6 weeks per patient and will be conducted at 4 centers within Switzerland. A total of 42 patients are planned to be included in the study.

(BASEC)

Intervention under investigation

Patients in the test group receive a high-fiber diet through the intake of plant fibers with food (product 'OptiFibre' from Nestlé Health Science).

(BASEC)

Disease under investigation

Advanced Stage Lung Cancer

(BASEC)

Criteria for participation in trial
-Age at least 18 years -Diagnosis of advanced lung carcinoma -First-line therapy with an immune checkpoint inhibitor (BASEC)

Exclusion criteria
-Previous therapy with immune checkpoint inhibitors -Taking immunosuppressive medications (BASEC)

Trial sites

Basel, Chur, St. Gallen, Winterthur

(BASEC)

not available

Sponsor

HOCH Health Ostschweiz

(BASEC)

Contact

Contact Person Switzerland

Maximilian Bösch, Ph.D.

+41714947143

maximilian.boesch@h-och.ch

Lung Center and Medical Oncology and Hematology, HOCH Health Ostschweiz

(BASEC)

Scientific Information

not available

Name of the authorising ethics committee (for multicentre studies, only the lead committee)

Ethikkommission Ostschweiz EKOS

(BASEC)

Date of authorisation

10.04.2025

(BASEC)


ICTRP Trial ID
not available

Official title (approved by ethics committee)
Multicenter, Randomized, Controlled Trial to Study the Effects of a High-Fiber Dietary Intervention on ctDNA Clearance and the Microbial and Immunological Landscape in Patients with Advanced Non-Small Cell Lung Cancer Receiving PD-1/PD-L1-Targeted Monotherapy (Fiber-Boost) (BASEC)

Academic title
not available

Public title
not available

Disease under investigation
not available

Intervention under investigation
not available

Type of trial
not available

Trial design
not available

Inclusion/Exclusion criteria
not available

not available

Primary and secondary end points
not available

not available

Registration date
not available

Incorporation of the first participant
not available

Secondary sponsors
not available

Additional contacts
not available

Secondary trial IDs
not available

Results-Individual Participant Data (IPD)
not available

Further information on the trial
not available

Results of the trial

Results summary

not available

Link to the results in the primary register

not available