Molecular Characterization of Perivascular Epithelioid Cell Tumors
France100 participantsStarted 2019-12-01
Plain-language summary
Perivascular epithelioid cell tumors (PEComas) are rare and are characterized by the expression of myomelanocytic markers. They are a complex family that includes angiomyolipomas, lymphangioleiomyomatoses and other soft tissue and visceral tumors. Due to the low prevalence of these tumors, the natural history is unclear; furthermore, a molecular classification integrating clinical, pathological and molecular parameters has not been described to date.
Who can participate
Age range
1 Year
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria:
* Major patient (≥18 years)
* Minor patient (1 to 17 years old)
* PEComas diagnosed in France between 01/01/1990 and 15/09/2019 and reviewed by a sarcoma referral pathologist
Exclusion criteria :
* Opposition of the patient (or the holders of parental authority) to participate in the study
* Biological tissue from a patient who does not meet all the inclusion criteria
* Classic triphasic angiomyolipoma or lymphangioleiomyomatosis
* Inability to provide informed information to the subject
* Patient under court protection
* Patient under guardianship or curatorship
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
To retrospectively describe the percentage of tumors with FISH (Fluorescence In Situ Hybridization) identification of the TFE3 rearrangement out of 100 cases of PEComas diagnosed in France between 01 January 1990 and 15 September 2019
Timeframe: Files analysed retrospectively from January 01, 1990 to September 15, 2019 will be examined