There are about 10004 clinical studies being (or have been) conducted in Brazil. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
This is an early feasibility study to evaluate the device functionality of an open-field handheld wireless fluorecence imaging system for detection of sentinel lymph nodes in women with cervical and uterine cancers who underwent open surgery.
The purpose of this study is to assess nivolumab plus relatlimab fixed-dose combination (FDC) versus nivolumab alone in participants with completely resected stage III-IV melanoma.
Background: Neoadjuvant chemoradiation (nCRT) has been considered the preferred initial treatment strategy for distal rectal cancer. Advantages of this approach include improved local control after radical surgery but also the opportunity for organ preserving strategies (Watch and Wait - WW). Consolidation chemotherapy (cCT) regimens using fluoropyrimidine-based with or without oxaliplatin following nCRT have demonstrated to increase complete response and organ preservation rates among these patients. However, the benefit of adding oxaliplatin to cCt compared to fluoropyrimidine alone regimens in terms of primary tumor response remains unclear. Since oxaliplatin-treatment may be associated with considerable toxicity, it becomes imperative to understand the benefit of its incorporation into standard cCT regimens in terms of primary tumor response. The aim of the present trial is to compare the outcomes of 2 different cCT regimens following nCRT (fluoropyrimidine-alone versus fluoropyrimidine+oxaliplatin) for patients with distal rectal cancer. Methods: In this multi-centre study, patients with magnetic resonance-defined distal rectal tumors will be randomized on a 1:1 ratio to receive long-course chemoradiation (54Gy) followed by cCT with fluoropyrimidine alone versus fluoropyrimidine+oxaliplatin. Magnetic resonance (MR) will be analyzed centrally prior to patient inclusion and randomization. mrT2-3N0-1 tumor located no more than 1cm above the anorectal ring determined by sagittal views on MR will be eligible for the study. Tumor response will be assessed after 12 weeks from radiotherapy (RT) completion. Patients with clinical complete response (clinical, endoscopic and radiological) will be enrolled in an organ-preservation program (WW). The primary endpoint of this trial is decision to organ-preservation surveillance (WW) at 18 weeks from RT completion. Discussion: Long-course nCRT with cCT is associated with improved complete response rates and may be a very attractive alternative to increase the chances for organ-preservation strategies. Fluoropyrimidine-based cCT with or without oxaliplatin has never been investigated in the setting of a randomized trial to compare clinical response rates and the possibility of organ-preservation. The outcomes of this study may significantly impact clinical practice of patients with distal rectal cancer interested in organ-preservation.
The Valeria trial will provide high-quality evidence regarding the efficacy and safety of oral rivaroxaban in thromboprophylaxis after gynecological pelvic cancer surgery in comparison with standard parenteral enoxaparin.
This is a multinational, long-term follow-up study to assess the long-term safety and durability of AVR-RD-01 treatment in participants who received a single dose administration of lentiviral gene therapy in Study AVRO-RD-01-201 (treatment study). No investigational product will be administered in this study. Participants will continue periodic safety and efficacy assessments in this long-term follow-up study up to 15 years from AVR-RD-01 gene therapy infusion.
The microneedle is a minimally invasive technique, consists of the application of a roller surrounded by small and thin needles that pierce the skin and generate a mechanical stimulus with no ablative effect on the skin. The study aims to test the hypothesis that the technique of microneedle in the treatment of tissue flaccidity and hyperchromia of female external genitalia is safe and with a more effective result in clinical improvement through genital rejuvenation and unification of skin tone when compared to non-ablative radiofrequency technique.
This study aims to evaluate bone formation in grafts in terms of its quality (density), quantity (volume) and maturation obtained with the application of a tissue-engineered bone grafting compound containing concentrated autogenous cell-culture medium (CM) and a synthetic bone substitute. The present study was designed as an experimental prospective split-mouth randomized controlled clinical trial. After protocol approval by the Research Ethics Committee, a total of 20 consecutive participants in need of maxillary reconstruction aiming implant-supported oral rehabilitation will be invited to join the study. To collect autogenous adipose tissue-derived mesenchymal stem cells (hASCs), an outpatient lipoplasty procedure at the abdominal area of each patient will be performed. To isolate and expand hASCs from the lipoaspirate, specific cell culture protocols will be followed, resulting in cultured viable cells and their conditioned medium (CM). Cells and CM will be then separated by a sequence of filters and centrifugation, and isolated CM will be frozen. ELISA will analyze the presence of chemokines and their concentration in CM before grafting. Following pre-op surgical planning, both maxillary sinuses of each patient will be grafted internally applying a lateral window to each sinus. The bony floor of the test maxillary sinus will be augmented with synthetic bone substitute (BoneCeramic™ 1-2 mm) mixed with 10 to 15 ml of CM (test). The control site will receive bone substitute with saline. Lateral windows in both sinuses will be then closed with a collagen membrane (Bio-Gide™). After 6 months, first-stage implant surgery will be performed placing 6 implants in each patient. Registration of implant stability by manual torque wrench will be performed. Also, bone biopsies from each drilled implant site will be collected for histology, histomorphometry and immunohistochemistry (RT-PCR). Tomographic evaluation of the bone formation will include cone beam computed tomographies (CBCTs) at pre-operative [Baseline], 90 [T1] and 180 [T2 = implant placement] days for bone 3D image analysis.
INTRODUCTION: aging is the natural process of deterioration of the reserves of biological systems, human beings are inherent to this process. The elderly population in Brazil grows very quickly, this is due to the drop in fertility, mortality and increased life expectancy. OBJECTIVE: to promote the planning of guiding and educational actions based on the qualification of the frailty of the elderly in the Basic Health Unit of the study through the use of the Multidimensional Assessment of the Elderly in Primary Care (AMPI/AB) tool. METHODOLOGY: an experimental, longitudinal, prospective and analytical study aimed at approximately 20 pre-frail elderly people residing in a specific area of a Family Health Unit in the city of Guarulhos/SP. A survey of data referring to the application of AMPI/AB carried out in 2021 and classified as pre-fragile will be carried out, in order to later select them for research. The participant will receive educational guidance on nutrition, use of medications and nursing guidance as identified as needs. Three months after the intervention, AMPI/AB will be applied in order to observe whether the pre-frail elderly remained or changed category after the experimental multidisciplinary educational interventions.
This is a Phase I/II study designed to evaluate if experimental anti-TIGIT/anti-PD-1 bispecific antibody rilvegostomig (AZD2936) is safe, tolerable and efficacious in participants with Advanced or Metastatic Non-small Cell Lung Cancer.
Predicting response to therapy and disease progression in stage IV NSCLC patients treated with pembrolizumab monotherapy, chemotherapy-pembrolizumab combination therapy or chemotherapy alone in the first-line setting.