There are about 173942 clinical studies being (or have been) conducted in United States. 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.
The present study evaluates clinical outcomes and treatment-related toxicity following definitive ultra-high dose external beam radiotherapy delivered with two different regimens in patients with intermediate-risk adenocarcinoma of the prostate. Modern computer-driven technology enables the implementation of ultra-high hypofractionated Image-Guided Radiotherapy (IGRT) safely. Prostate cancer patients classified according to the current National Comprehensive Cancer Network (NCCN) guidelines as intermediate risk (biopsy Gleason score of 7 and/or Prostate Specific Antigen (PSA) level >10 and ≤20 ng/mL and/or Stage T1, T2a, T2b or T2c) are eligible for this study. Patients will undergo IGRT with volumetric intensity-modulated arc radiotherapy (VMAT) with state-of-the-art treatment-planning and quality assurance procedures. Emphasis is placed on normal tissue sparing and delivery accuracy via the use of devices that ensure stability and beam location reproducibility. A rectal balloon with air filling will be used for prostate target immobilization and anatomical reproducibility, while a urethral catheter loaded with beacon transponders will be used to ensure set-up reproducibility and online target tracking. Previously untreated patients with intermediate-risk prostate cancer will be prospectively randomized to receive either 45 Gy in five fractions of 9 Gy each vs. 24 Gy in a single-dose. Patients will be followed at one month post-treatment and every 3 months for up to 12 months (+/- 4 weeks) and every 6 months thereafter. Acute and chronic toxicity evaluations will focus on urinary, rectal and sexual functions and will be assessed through validated questionnaires. Serum PSA values will be regularly acquired during follow-up. A multiparametric MRI will be performed at baseline, 6, 12 and 24 months following intervention. Additionally, a post-treatment diffusion-weighted MRI (DW-MRI) will be performed within 15 minutes of the first treatment, to measure early physiologic changes, such as perfusion and ischemia, that may correlate with clinically relevant end-points. Post-treatment prostate needle biopsies will be obtained at 24 months to evaluate pathologic response to therapy. The study will be continuously monitored for a minimum of 5 years. In the event unexpected severe (grade ≥3) toxicities are observed in any one of the treatment arms, the study will be terminated according to the stopping rule >3/first 15 patients.
The purpose of this study is to see how an Intermittent Calorie Reduced Diet (IRCD) that mimics fasting effects inflammation in patients with mild to moderate Crohn's disease (CD). The diet may allow users to receive the benefits of fasting while also being able to enjoy food (the ingredients of which are GRAS (generally recognized as safe) by the Food and Drug Administration (FDA). Research on dietary interventions and CD are very limited. Diets that mimick fasting have been studied with support of the National Institute of Health and published in leading journals. This research investigates whether markers of inflammation decrease and/or quality of life increases after five-day periods of the IRCD, and may provide rationale for its use to treat CD.
The primary objective of this research protocol is to advance the understanding of cardiopulmonary and right ventricular (RV) performance among individuals with cardiomyopathy (heart failure with reduced ejection fraction [HFrEF], heart failure with preserved ejection fraction [HFpEF]), as well as athletes engaging in endurance/prolonged exercise, who are at a high risk of an acquired cardiomyopathy during/following completion of an endurance event.
This study aims to identify the optimal method to recognize, risk stratify, and provide follow-up care for individuals at risk of hereditary cancer. The study team will conduct a Hybrid Type II comparative effectiveness-implementation trial, with a mixed methods component and process/formative evaluations for stakeholder engagement. The study team will evaluate three methods for identifying and risk-stratifying individuals at risk of hereditary cancer and providing post-risk stratification longitudinal care.
This study is being conducted to test the safety and efficacy of ramucirumab in combination with other chemotherapy in the treatment of relapsed, recurrent, or refractory desmoplastic small round cell tumor (DSRCT) in children and young adults. This trial is part of the CAMPFIRE master protocol (NCT05999994) which is a platform to accelerate the development of new treatments for pediatric and young adult participants with cancer. Your participation in this trial could last 12 months or longer, depending on how you and your tumor respond.
The purpose of this study is to evaluate the survival rate of 5 mm short implants compared to longer implants (10 mm) placed in sinus-grafted sites. Primary aim: Compare bone loss between the two groups Secondary aim: Compare surgical time and patient-reported outcomes (satisfaction and post-operative pain)
Mild traumatic brain injury (mTBI) is the signature wound of Veterans returning from the operations in Iraq and Afghanistan (i.e., OIF/OEF/OND), with up to 20 percent experiencing persistent post-concussive symptoms. Among Veterans with mTBI, the majority also experience stress-based psychopathology (e.g., depression, post-traumatic stress disorder, and/or generalized anxiety disorder) and chronic pain. To cope with distress, pain, and other difficulties, Veterans often turn to maladaptive avoidant coping strategies which offer short term relief but exacerbate/maintain mental health problems and have detrimental long-term effects on social, occupational, and community reintegration. Unfortunately, Veterans face important barriers to seeking mental health treatment, including stigma and logistical issues. This proposal aims to examine 1) the impact of a Veteran-centered, non-stigmatizing, 1-day "life skills group workshop" on overall distress and reintegration; and 2) the mechanisms by which this treatment might work as well as possible influences on treatment efficacy.
This is a non-treatment, blood collection study to evaluate biomarker panels for the diagnosis and prognosis of pancreatic cancer.
The objective of this pilot study is to evaluate the feasibility and acceptability of GIA in sharing genetic test results with family members. To determine the utility of GIA in sharing information. To determine the impact of GIA on downstream cascade testing rates.
Multi-centered, randomized controlled study, evaluating the safety and efficacy of the Ohana IVF Sperm Preparation Kit vs. a standard IVF sperm preparation kit.