16 Clinical Trials for Various Conditions
The goal of this study is to observe the healing of skin after ellacor® treatment at different timepoints, depths and coring densities. The visual comparison of treated areas to untreated control areas will improve understanding of how the ellacor® procedure works to induce skin resurfacing using an abdominoplasty, or tummy tuck surgery, model. The people participating in the study will have already decided that they want to have an abdominoplasty procedure. The main questions this study aims to answer are: How does human skin change after a series of the ellacor® procedures over a 14-day period? Is the ellacor® device safe to use at different treatment time points, depths and densities? The ellacor® procedure will be performed on people who are going to have abdominoplasty surgery. The ellacor® treatment areas will be limited to the skin areas marked for removal during the abdominoplasty. The treated tissue will be sent to a lab for microscopic study after the abdominoplasty procedure is complete. A minimum of 3 people will be treated in the study. The 3 participants will have the ellacor® procedure done at 4 different timepoints before their abdominoplasty surgery: -14 days, -7 days, -3 days and on day 0, just prior to the abdominoplasty procedure. At each treatment timepoint the participants will have 3 areas treated using a depth of 7mm and different skin removal percent settings of 5%, 7% and 8%. The participants will have photos taken of the treatment areas and will be asked about any changes to their health or medications over the 14-day study. Researchers will study the abdominoplasty tissue under a microscope after it has been removed from the participants. They will compare the areas treated by the ellacor® device to an area left untreated, which is the control area. This will reveal, by visual comparison, any changes in the skin tissue between treated and untreated areas, if they occur.
The goal of this study to better understand how the ellacor® Micro-Coring™ procedure works using an abdominoplasty, or tummy tuck surgery, model. The people participating in the study will have already decided that they want to have an abdominoplasty procedure. The main questions this study aims to answer are: 1. how does the ellacor® procedure change skin tissue? 2. is the ellacor® device safe to use at specific treatment depths? The ellacor® procedure will be performed on people who are going to have abdominoplasty surgery. The ellacor® treatment areas will be limited to the areas marked for removal of skin during the abdominoplasty. The treated tissue will be sent to a lab for microscopic study after the abdominoplasty procedure is complete. A minimum of 3 people will be treated in each of 2 groups for a total of 6 total participants. 3 participants in the first group will have the ellacor® procedure done 30 days before their abdominoplasty surgery. The ellacor® procedure will be done at different depths in designated locations: 4mm, 5mm and 7mm. The participants will be asked about any changes to their health or medications while on the study. 3 participants in the second group will have the ellacor® procedure done at 3 different timepoints, 30 days apart, all at the same depth of 4mm. They will also be asked about any changes to their health or medications while on the study. Researchers will study the abdominoplasty tissue under a microscope after it has been removed from the participants. They will compare the areas treated by the ellacor® device to an area left untreated. This will reveal any changes in the skin tissue between treated and untreated areas, if they occur.
This is a multi-site, retrospective chart review as well as a prospective study to evaluate histopathologic findings in liver samples from individuals with any UCD diagnosis. This study will be conducted at all Urea Cycle Disorders Consortium (UCDC) sites: Baylor College of Medicine in Houston, TX and Children's National Medical Center in Washington D.C.
A Single-Arm, blinded, fluorescent PSMA histopathology trial of AS1986NS
This study will compare the performance of Gene Expression Profile (GEP)/ Donor derived cell free deoxyribonucleic acid (dd-cfDNA) tests, to the following tests: Molecular Microscope (MMDx) and histopathology (study of changes in tissues caused by disease) in their ability to diagnose (exactly identify) various types of injury within the transplanted kidney.
Multiparametric MRI of the prostate (mpMRI) plays an integral role in contemporary prostate cancer management. It involves the acquisition of both anatomical sequences (T1- and T2-weighted images) as well as 'functional' imaging sequences (diffusion weighted imaging (DWI) and dynamic contrast enhanced (DCE) imaging), the latter sequences being those which image water diffusivity and tissue perfusion, respectively. Advantages of mpMRI include ability to risk stratify patients prior to biopsy, enhanced detection of clinically significant cancer and reduced diagnosis of insignificant cancers, the identification of active surveillance candidates and improved local staging for subsequent surgical and radiotherapy planning. However, there are ongoing challenges encountered with prostate mpMRI in terms of patient acceptance, image acquisition technical challenges, interpretive expertise and cost. These challenges have motivated recent investigations employing tailored MRI protocols, i.e. faster and less expensive MR exams that eliminate one or more aspects of current mpMRI technique considered redundant, while retaining the essential imaging parameters needed for equivalent diagnostic interpretation. Among these is non-contrast biparametric MRI, which involves anatomic T2 weighted images along with diffusion weighted images (DWI) as the only retained functional sequence. Both single center studies and meta analyses have demonstrated no added value for DCE compared to the combination of T2WI and DWI, Overall cancer detection rates have been found to be equivalent for bpMRI compared to mpMRI, independent of reader experience, with comparable efficacy to guide cognitive targeted, MRI-targeted and MRI-US fusion guided biopsy. Equivalence between bpMRI and mpMRI for cancer detection has also been corroborated in two recently published meta analyses. Based upon our institution's experience with prostate mpMRI, avoidance of gadolinium and DCE imaging would be associated with a 30 percent reduction in scan cost and 40 percent reduction in total time (i.e. scan time plus patient preparatory time).
This exploratory study investigates how an imaging technique called 68Ga-FAPi-46 PET/CT can determine where and to which degree the FAPI tracer (68Ga-FAPi-46) accumulates in normal and cancer tissues in patients with cancer. Because some cancers take up 68Ga-FAPi-46 it can be seen with PET. FAP stands for Fibroblast Activation Protein. FAP is produced by cells that surround tumors (cancer associated fibroblasts). The function of FAP is not well understood but imaging studies have shown that FAP can be detected with FAPI PET/CT. Imaging FAP with FAPI PET/CT may in the future provide additional information about various cancers.
This exploratory study investigates how a new imaging technique called FAPI PET/CT can determine where and to which degree the FAPI tracer (68Ga-FAPi-46) accumulates in normal and cancer tissues in patients with prostate cancer. Because some cancers take up 68Ga-FAPi-46 it can be seen with PET. FAP stands for Fibroblast Activation Protein. FAP is produced by cells that surround tumors. The function of FAP is not well understood but imaging studies have shown that FAP can be detected with FAPI PET/CT. Imaging FAP with FAPI PET/CT may in the future provide additional information about various cancers including prostate cancer.
To evaluate the histopathology of subcutaneous tissue isolated after single or multiple Collagenase Clostridium Histolyticum (CCH) injection techniques in adult female participants undergoing abdominoplasty.
This clinical research study tests the Uronav system. Patients with prostate cancer will be asked to take part in this study. Uronav system is an investigational device that is used on this study to help place markers in the patient. These are called fiducial markers and they are placed in the patient to help plan radiation treatment. Radiation therapy treatment will be planned by the treating physician and will not be experimental or part of this research study. This study will also test the similarities and differences of biopsy tissue structures and the findings from the intraprostatic MRI (internally guided MRI).
Comparison of confocal laser endomicroscopic in vivo diagnosis and ex vivo examination against surgical histopathology of cystic pancreatic lesions.
To Determine the the Efficacy and Safety of \[18F\]NAV4694 PET for Detection of Cerebral β-Amyloid When Compared With Postmortem Histopathology
This was a multicenter, multi-reader, open-label, Phase 2 study assessing the safety and performance characteristics of MIP 1404 imaging in the detection of prostate gland and pelvic lymph node cancer. Comparative performance characteristics between MIP 1404 imaging and MRI were also assessed, as judged by histopathology results.
To determine the sensitivity and specificity of the visual assessment of tracer uptake in the Florbetaben PET images compared to histological verification of the presence or absence of cerebral β-amyloid in the respective histopathologic post mortem specimens as the standard of truth
The goal of the study is to develop a novel approach to obtain real time optical biopsy of urinary tract pathology (e.g., bladder tumors) during urinary tract endoscopy using a novel fibered confocal microscope.
This is a prospective, in vivo proof-of-concept clinical study, where histopathologic examinations will be conducted at various timepoints following Bellafill injections.