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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT02400827
Other study ID # CHU-0229
Secondary ID
Status Recruiting
Phase N/A
First received March 24, 2015
Last updated March 26, 2015
Start date November 2014
Est. completion date June 2016

Study information

Verified date March 2015
Source University Hospital, Clermont-Ferrand
Contact Patrick LACARIN
Phone 04 73 75 11 95
Email placarin@chu-clermontferrand.fr
Is FDA regulated No
Health authority France: Commission nationale de l'informatique et des libertés
Study type Observational

Clinical Trial Summary

For prepubertal patients, cryopreservation of ovarian tissue is the only option available to preserve their fertility before cancer treatment. But ovarian autograft raises the issue of the risk of reintroduction of potentially malignant cells. The aim of our study is to develop a specific and sensitive method for residual disease detection in the ovarian tissue from patients treated for a solid tumor during infancy, whose fertility may have been compromised by treatments and who benefited of ovarian tissue cryopreservation.


Description:

Some solid tumors have high risk of metastatic localization including in ovaries. There is concern over the possible presence of malignant cells in ovarian tissue that could cause a recurrence of the primary disease after reimplantation. Thus, the possibility of ovarian tissue involvement needs to be evaluated with sensitive molecular methods. Those techniques are now available for leukaemia but histology is still the only way for solid tumors.

Based on our experience in detection by RT-PCR of minimal residual disease (MRD) in neuroblastoma since 1994 [Tchirkov et al. 2003] and in ovarian tissue cryopreservation since 1995 [Schubert et al. 2005, Chambon in press], we want to develop a specific and sensitive method for residual disease detection by RT-PCR in order to evaluate the tumor contamination of ovarian harvested tissue.

Study population: We chose 3 models of pediatric solid tumors with high risk of metastases and which often require sterilizing treatments (chemo and/or radiotherapy): neuroblastoma, Ewing tumor and alveolar rhabdosarcoma. We will use four tumor cells lines: IMR32 and SK-NSH for neuroblastoma; RD-ES for Ewing tumor; RH-30 for rhabdosarcoma. We plan to use 20 fragments per line.

Study duration: 12 months Study design: Ovarian tissue without known malignancy but with a condition warranting laparoscopy (benign cysts) will be harvested during kystectomy (perikystic tissue).

The harvested ovarian cortex will be cut: one half will be frozen according to our routine protocol [Schubert et al. 2005] and the other half will be contaminated with tumor cells lines. Then, detection of the specific transcript will be done by RT-PCR in fresh tissue and after freeze/thaw. Total RNA will be extracted with the TRI-reagent and qRT-PCR will be performed using the "TaqMan" technology.

Primary endpoint: to reach a sensitivity about 1/106 cells.


Recruitment information / eligibility

Status Recruiting
Enrollment 80
Est. completion date June 2016
Est. primary completion date November 2015
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Female
Age group N/A and older
Eligibility Inclusion Criteria:

- Women of any age, diagnosed with a benign cyst that needs a laparoscopy may be included

Exclusion Criteria:

Study Design

N/A


Intervention

Other:
malignant cells


Locations

Country Name City State
France CHU de Clermont-Ferrand Clermont-Ferrand

Sponsors (1)

Lead Sponsor Collaborator
University Hospital, Clermont-Ferrand

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary malignant cells about 1/10*6 cells. at day 1 No
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