Perpignan

Researchers are investigating metastatic colorectal cancer mCRC patients who have a specific genetic change called the BRAFV600E mutation. This rare subtype of mCRC often shows poor response to current treatments and has a generally poor outlook. The study aims to collect detailed clinical data and biological samples to better understand this condition, including how patients respond to treatments and what factors predict their survival. It focuses on real-world treatment outcomes and biological markers that might influence therapy choices and resistance. Participants will provide blood samples at multiple times during their treatment, including before and during the first three treatment cycles, at 3 and 6 months after starting each treatment line, and when disease progression occurs following certain therapies. The study gathers up to 390 mL of blood per participant over time to analyze circulating tumor DNA and immune environment factors. This observational approach will help researchers identify biomarkers related to treatment response and disease progression. During the study, participants clinical progress and survival will be tracked for up to five years. Researchers will review overall survival from diagnosis to death and assess how prognostic markers relate to progression-free survival and response to treatments. The study involves collecting tumor tissue samples and blood tests, along with routine follow-up visits. All data collected will contribute to understanding BRAFV600E mCRC and improving future treatment strategies.

This research aims to describe the clinical, histological, and radiological features of rare primary liver cancers. It focuses on collecting tumor and blood samples to better understand these cancers and to evaluate how well treatments used in real-world practice work, with the goal of identifying the best treatment sequences. The study serves as a foundation for future research to find new molecular and imaging biomarkers that could improve diagnosis and prognosis. The study is observational and retrospective, meaning it reviews past cases from multiple centers in France. It collects biological samples and clinical data from patients diagnosed with rare primary liver cancers after January 2018. The study evaluates treatments patients have received in clinical practice without assigning any new treatments or interventions. Participants data, including clinical characteristics, tumor biology, and imaging, will be reviewed for up to five years from diagnosis. Researchers will measure outcomes such as recurrence-free survival for patients without metastases, progression-free survival for those with metastases, and overall survival. The study includes both living patients who consent to participate and deceased patients, aiming to gather comprehensive information to support future translational studies.

Researchers are conducting a prospective, multicenter cohort study to follow children with idiopathic nephrotic syndrome INS, a rare kidney disease. The study aims to collect data on pediatric patients treated by pediatric nephrologists in France and its overseas territories to better understand the diseases characteristics and support future clinical trials. The study involves regularly recording medical, biological, psychological, and social data through routine clinical follow-ups, hospitalizations, and consultations. Additionally, annual telephone interviews will be conducted for patients in remission. Quality of life, treatment adherence, and treatment impact questionnaires will also be collected. A biobank is established to collect blood, urine, hair, and nail samples at the disease onset before immunosuppressive treatment begins. Participants will be followed from disease onset until age 18 or transfer to adult nephrology care. Data is collected via a secure website, medically validated and entered by clinical research staff. The main outcome is the number of cases included and their characteristics over two years. Participation involves routine care visits, interviews, and questionnaires, with continued monitoring planned through the study period ending in 2048.

This research aims to improve pregnancy success rates in women undergoing frozen embryo transfers FET after in vitro fertilization IVF. It evaluates whether placing a blank culture medium into the uterus a few days before the embryo transfer can enhance immune tolerance and support embryo implantation. The study compares this approach to a sham transfer procedure without the culture medium, focusing on women who have experienced previous embryo transfer failures. Participants are randomly assigned to one of two groups the experimental group receives a small amount of warmed embryo culture medium injected into the uterine cavity two to three days before the frozen embryo transfer, while the control group undergoes a sham transfer with an empty catheter during the same timeframe. The study is single-blind and involves multiple centers. During the trial, researchers will monitor pregnancy outcomes, including early pregnancy occurrence, biochemical and clinical pregnancy rates at various time points, early miscarriage rates, and live birth rates. They will also assess cost-effectiveness between the two care strategies. Participant involvement includes consent, membership in a health insurance plan, and follow-up evaluations up to and beyond the pregnancy period, with the primary outcome measured at 12 weeks of amenorrhea.

Non-muscle-invasive bladder cancer NMIBC is a type of bladder tumor that affects the inner lining of the bladder without invading the muscle layer. This research aims to collect and analyze real-world data on how NMIBC is managed and followed up in clinical practice across France. The study seeks to assess the performance of urine tests used to detect tumor recurrence and to understand variations in treatment and patient outcomes. The study is observational and involves collecting medical data from patients being monitored for NMIBC, including results from urine biomarker tests done before biopsies or resections. Urologists participating in the French Urology Association will record findings from regular bladder endoscopic exams and urine test results during routine care visits. Data analysis will focus on the accuracy of urine tests in predicting tumor recurrence and how this varies by tumor characteristics and prior treatments. Participants will have their medical history, treatments, and urine test results entered into a registry at enrollment. During follow-up visits scheduled as part of their personalized care, data on bladder exams and urine tests will be collected. Researchers will evaluate outcomes such as recurrence-free survival and the diagnostic value of urine biomarkers over a five-year period. The study plans to include around 8,000 patients over six years to improve understanding of NMIBC management and follow-up.

Researchers are evaluating different antimicrobial therapies for infections caused by difficult-to-treat Pseudomonas aeruginosa, a type of bacteria resistant to many common antibiotics. This study focuses on comparing new beta-lactambeta-lactamase inhibitor combinations, cefiderocol, and older treatments like aminoglycosides and colistin to understand their effectiveness in real-life settings for patients facing these challenging infections. The study is a prospective, multicenter cohort involving patients who require intravenous antibiotic treatment for their P. aeruginosa infections. Participating patients will receive one of the available antimicrobial options, and their bacterial samples will be analyzed centrally to assess susceptibility and resistance mechanisms. The study collects clinical data throughout treatment and monitors outcomes such as cure rates, resistance development, adverse events, and mortality. Participants will be followed until hospital discharge and up to 28 days after treatment completion. Researchers will track clinical cures, microbiological eradication, adverse events, emergence of resistance, and acquisition of other multidrug-resistant bacteria. Data collection includes electronic case reports and laboratory testing on bacterial isolates. The total participation duration varies according to hospital stay and follow-up schedules, with rigorous monitoring of safety and treatment outcomes.

This research aims to collect long-term safety and disease progression data on patients diagnosed with atypical hemolytic-uremic syndrome aHUS, including those treated or untreated with the drugs eculizumab or ravulizumab. The study is observational and involves multiple centers and countries, focusing on real-world information after these treatments have been marketed. Participants include patients of any age diagnosed with aHUS, regardless of whether they have identified complement genetic variants or antibodies. The study gathers data without administering new treatments, monitoring patients who may or may not have received eculizumab or ravulizumab. The registry collects information over extended periods to understand safety events and disease course. During the study, researchers track safety-related events over 10 years and the timing of these events within 5 years. Data collection involves reviewing patient health status and disease progression without altering their usual care. The study relies on informed consent and may include minors with appropriate assent. Participation duration varies, with continuous observation to gather comprehensive post-marketing safety data.

Philadelphia-negative myeloproliferative neoplasms MPNs such as Polycythemia Vera, Essential Thrombocythemia, and Prefibrotic Myelofibrosis are chronic blood cancers caused by mutations affecting blood cell growth. These diseases carry a high risk of blood clots, which can cause serious complications and death. Current treatments include low-dose aspirin, but blood clots still occur in some patients despite therapy. This trial aims to study whether direct oral anticoagulants DOACs, which have shown benefits in other cancer patients, might help prevent blood clots in MPN patients with a specific mutation called JAK2V617F. Participants will be randomly assigned to receive either a direct oral anticoagulanteither Apixaban 2.5 mg twice daily or Rivaroxaban 10 mg once dailyor low-dose aspirin 100 mg once daily. The choice of DOAC is up to the investigator. The treatments will be given to high-risk patients for up to 24 months to compare their effects on clot prevention. Throughout the study, participants will be closely monitored for any thrombotic or bleeding events. During the trial, researchers will track the time until any arterial or venous blood clots occur, as well as any major or clinically relevant bleeding events. They will also evaluate survival, adherence to therapy, quality of life, and healthcare costs related to these treatments. Participants will have regular follow-ups over 24 months, including assessments for heart rhythm problems and safety monitoring. This comprehensive approach aims to better understand the benefits and risks of DOACs compared to aspirin in preventing clots in MPN patients.

Researchers are studying anaplastic large cell lymphoma associated with breast implants BIA-ALCL, a rare disease that affects only women with breast implants. Due to the low number of cases and the unique nature of this lymphoma subtype, French authorities have recommended creating a registry to collect information on these patients. This registry is open in France and Belgium and is coordinated with a national multidisciplinary meeting for expert review. This study is observational and does not involve any treatment or intervention. It collects data on patients diagnosed with BIA-ALCL to better understand the disease and monitor overall response over a 13-year period. The registry serves as a resource for gathering clinical information and supporting expert consensus discussions. Participants in this registry provide information on their condition, which is reviewed regularly during the multidisciplinary meetings. Researchers track overall response as the primary outcome over 13 years. The study helps to gather long-term data on this rare lymphoma without affecting the usual care patients receive from their own doctors.

Researchers are comparing visual outcomes after implanting two types of intraocular lenses IOLs called Synthesis Plus and Synthesis Plus Toric in adults aged 50 and older undergoing cataract surgery. This study aims to determine if the distance-corrected intermediate visual acuity at 66 cm with the Synthesis Plus Toric is not worse than with the Synthesis Plus lens. The study focuses on patients with cataracts who may or may not have pre-existing astigmatism. Participants receive either the Synthesis Plus Toric IOL, designed for patients with pre-existing astigmatism, or the Synthesis Plus IOL for those with little or no astigmatism. Both lenses are implanted during bilateral cataract surgery. The study includes follow-up assessments at one month after surgery to evaluate vision and lens performance. During the study, participants will undergo various eye exams including measurements of visual acuity at different distances, refraction tests, and assessments of lens rotation and complications. Researchers also collect subjective feedback on the quality of vision. The main outcome measured is the intermediate visual acuity at 66 cm one month after surgery. The study is conducted at a single center and is sponsored by Cutting Edge SAS.