About this trial
Background:
Due to the remarkable improvement in treatments these last decades, long term survival can be expected in more than 80% of childhood cancer patients. Unfortunately, cancer treatments can be harmful to the gonads and can affect reproductive and endocrine functions. While loss of fertility is a major concern for most patients, sperm cryopreservation should be offered to all pubertal male patients. For prepubertal boys, only the experimental option of testicular biopsy in order to cryopreserve testicular stem cells can be proposed.
Primary aims
\- To cryopreserve testicular tissue of prepubertal patient receiving highly gonadotoxic oncological treatment.
Secondary aims
* To cryopreserve testicular tissue after failure of sperm cryopreservation in pubertal patient with high risk of infertility * To create a database in order to record clinical and biological follow-up data * To create a research biobank for future research projects
Multicentric study: HUG, CHUV, UKBB
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Prepubertal patients aged 3 months and older
Peri and pubertal patients after failure of sperm cryopreservation
Patients presenting high risk of infertility because of gonadotoxic treatments (i.e high dose of alkylating agents, testicular irradiation, total body irradiation).
Multidisciplinary team consensus in favour of proposition to cryopreserve testicular tissue
Disqualifiers
Patients under the age of 3 months
Refusal of the patient and/or his parents
Treatments that are not highly gonadotoxic
Trial design
Single group
Treatments tested in this trial
testicular tissue biopsy
Procedure/Surgerytesticular tissue biopsy during general anesthesia
Treatment groups
Trial outcomes
Primary outcomes
Number of pediatric cancer patient who will undergo testicular tissue cryopreservation for fertility preservation
Secondary outcomes
Incidence of complications related to the testicular biopsy (safety)
The safety will be assessed by recording the number of complications of the procedure (e.g. bleeding, infection, testicular atrophy)
Comparison of biochemical markers
Comparison of biochemical markers (e.g., FSH; LH, AMH; Inhibin B, SHBG and testosterone) between patients who undergo testicular biopsy and controls
Sponsors and contacts
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Gumy-Pause Fabienne
Lead sponsor
University Hospital, Geneva
Sponsor institution