Interest of a Taurolidine lock at each catheter closure in the primary prevention of catheter-related endoluminal infection in paediatric oncology.

Multicentric, controlled, randomized and double-blind label study.

The patient will be followed according to the type of pathology and the respective treatment protocol either Taurolock or physiological serum at each time cathter will be used.

Inclusion Criteria:

1. Patient less than or equal to 21 years of age at inclusion.
2. Patient for whom a central catheter is planned to be inserted*, excluding a non-tunneled femoral or cervical external catheter or a peripherally inserted central catheter (as PICC line). *1st catheter placement or placement following a relapse (this placement must take place at least one month after previous catheter removal).
3. Patient treated for a cancer.
4. Patient with regular follow-up in the inclusion center.
5. Informed consent signed by the patient if adult or by legal representatives if minor.
6. Patient benefiting from a social security coverage.
7. Time between the date of catheter placement and the planned date for the first solution lock injection less than 6 weeks.

Exclusion Criteria:

1. Patient with retinoblastoma.
2. Allografted patient.
3. Patient with a life expectancy of less than 6 months.
4. Patient refusing to participate in the protocol.
5. Patient already receiving a central venous catheter-related infection prevention lock (ILCVC).
6. Patient with known allergy to citrate or (cyclo)-Taurolidine.
7. Patient taking other drugs with a known contraindication with citrate or (cyclo)-Taurolidine.
8. Patient with an external femoral catheter.
9. Patient with a PICCLINE-type peripheral venous inserted central catheter.
10. Patient unable to submit to the medical follow-up of the trial for geographical, social or psychological reasons.
11. Patient under guardianship and curatorship.

Sponsor will share de-identified data sets. Documents generated under the project will be disseminated in accordance with Institut Curie policies.

Data requests can be submitted starting 9 months after last article publication and will be made accessible for up to 12 months.

Access to trial individual participant data can be requested by qualified researchers engaging in independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a data sharing agreement (DSA).