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Ovarian Tumor Organotypic Slices Cultures for functionAl Drug Testing and Therapy Response Prediction

Ovarian Tumor Organotypic Slices Cultures for functionAl Drug Testing and Therapy Response Prediction

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06065358
Acronym
TOSCA
Enrollment
48
Registered
2023-10-03
Start date
2021-09-13
Completion date
2026-08-03
Last updated
2026-04-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ovarian Cancer

Brief summary

Ex vivo organotypic tumor slice cultures (OTSC) have unique characteristics in terms of tissue processing time and the maintenance of original microenvironment. Moreover, drug screening has been successfully performed on OTSC in a clinically meaningful time window. For these reasons, we designed a study to assess the feasibility of establishing OTSC in OC patients and the concordance between ex vivo sensitivity and in vivo treatment response. If proven effective and reliable, OTSC could be introduced into clinical practice as empirical predictor of patients' response to platinum.

Detailed description

Most patients with ovarian cancer (OC) present with advanced stage and severe symptoms. The standard of care is based on an association between surgery and platinum-based chemotherapy, to which targeted therapies have been added since 2014. Despite significantly improved outcomes, there are still 15-20% of patients resistant to platinum-based chemotherapy without many therapeutic options and poor prognosis. It is urgent to select this population thus limiting useless undesirable effects and exploring more effective therapeutic options before clinical conditions worsen. To date, there are no validated predictive markers of primary platinum refractory or resistant disease and traditional cancer models are currently incompatible with treatment time window in this clinical setting. Among cancer models, ex vivo organotypic tumor slice cultures (OTSC) have unique characteristics in terms of tissue processing time and the maintenance of original microenvironment. Moreover, drug screening has been successfully performed on OTSC in a clinically meaningful time window. For these reasons, we designed a study to assess the feasibility of establishing OTSC in OC patients and the concordance between ex vivo sensitivity and in vivo treatment response. If proven effective and reliable, OTSC could be introduced into clinical practice as empirical predictor of patients' response to platinum.

Interventions

PROCEDURETumor biopsy

Patients with advanced suspected HGSOC will be considered eligible (FIGO stage from III C or greater). At the time of surgery, patients' disease extension will be assessed with the Fagotti score (PIV) and the Vizzielli score (VS). Only patients who are not considered operable in the first place, will be enrolled. Samples will be taken during surgery that will take place in the operating rooms of oncological gynaecology.

Sponsors

Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Preoperative clinical, serological and radiologic suspicion of International Federation of Gynecology and Obstetrics (FIGO) stage IIIC or greater ovarian, fallopian tube, or primary peritoneal cancer; 2. Age over 18 years; 3. Estimated life expectancy of at least 4 weeks; 4. Fagotti score (PIV) \> 8 or patients not considered operable in the first place for any reasons; 5. Histologic diagnoses of epithelial ovarian cancer at frozen section.

Exclusion criteria

1. Non- epithelial histology at frozen section; 2. Patients enrolled in other clinical trials.

Design outcomes

Primary

MeasureTime frameDescription
Evaluation of Chemotherapeutic Drug Effects on Ovarian Cancer Cell CulturesBaselineTo establish the role of organotypic tumor slice cultures in newly diagnosed advanced ovarian tumors. To evaluate the feasibility of organotypic tumor slice cultures by measuring cell culture viability and the possibility of testing chemotherapeutic drugs.

Countries

Italy

Contacts

PRINCIPAL_INVESTIGATORCamilla Nero

Fondazione Policlinico Universitario Agostino Gemelli IRCCS

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 25, 2026