View clinical trials related to Relapse.
Filter by:Long-term studies have shown that various occlusal changes occur after the active phase of orthodontic treatment. some of these changes are unwanted changes and are considered as relapse The retention appliances are used to maintain the arch dimensions and alignment of the teeth after completion of the orthodontic treatment. One indicator of the functional state and health of the masticatory system is maximum voluntary bite force (MVBF). Its values vary in accordance to the location of measurement (highest at the first molar, lower at the incisors). People with pronounced horizontal craniofacial growth have somewhat higher values of MVBF, and those with vertical growth have lower values than do those with an average growth pattern. Clinical case reports and descriptive histologic data exist suggesting that bone and tooth remodeling persist for extended periods after removal of appliance or deactivation. A reflection of bone remodelling can be found in the gingival crevicular fluid (GCF) of moving teeth, with decrease or increase in the concentration of biomarker. This prompted us to evaluate the expression of variation in bone turnover marker levels (CTX-Bone resorption marker and BALP -Bone formation marker ) during the retention period. The International Osteoporosis Foundation (IOF) and International Federation of Clinical Chemistry (IFCC) have recommended C-terminal telopeptide of type I collagen (CTX) as one of the reference for BTMs. Hence, The present trial will be undertaken to assess the changes and compare if there is any difference in bite force and change in level of bone biomarker biomarker CTX type 1 collagen(C-terminal telopeptide of type I collagen and bone specific alkaline phosphatase(BALP) in post orthodontic treatment hypodivergent and hyperdivergent cases using beggs retainer over 12 months of period of retention.
Inguinal hernia surgery is one of the most frequently performed procedures among general surgery cases. As with many open surgical methods, this repair is also performed laparoscopically. Among these closed methods, the one method is laparoscopic extended total extraperitoneal repair (eTEP). The benefits of laparoscope include less postoperative pain and complications, faster recovery, reduced chronic pain, and recurrence rate. One of the recent debates regarding the laparoscopic technique is mesh fixation. Fixation of the mesh to the cooper ligament can prevent mesh migration and consequently reduce the recurrence rate. However, it has been reported that this fixation may increase postoperative pain. Several studies have reported that recurrence may be due to inadequate mesh fixation technique. In contrast, other prospective randomized studies have found relapse unrelated to mesh fixation. In the eTEP technique, dissection is performed in a larger area than in TEP. For this reason, it can be thought that the possibility of mesh displacement is higher in the eTEP procedure. The purpose of this study is to confirm this idea with a prospective study. There are studies in the literature on mesh fixation related to the total extraperitoneal repair (TEP) technique. However, there is no study on mesh detection in the eTEP technique. The aim of the study is to compare patients who underwent withmesh fixation and without mesh fixation laparoscopic eTEP repair in terms of clinical data such as mesh displacement and hernia recurrence, chronic pain, length of hospital stay, and postoperative complications.
Inguinal hernia is one of the most frequently performed surgeries in general surgery. This surgery can be performed with both open and laparoscopic techniques. There is no clear consensus on whether inguinal hernia repair, which is one of the most frequently performed surgeries in elderly patients, should be performed open or laparoscopic. The application of the open technique with regional anesthesia methods such as spinal anesthesia and local anesthesia makes these methods attractive. The fact that laparoscopic techniques cause patients to recover faster also makes these techniques attractive. However, the fact that it is usually performed under general anesthesia is a significant disadvantage. Increasing comorbidities and increased drug use, especially in elderly patients, make surgeons think about which technique to prefer. The aim of this study is to compare open and laparoscopic inguinal hernia repair, which should be preferred in patients over 65 years of age.
The standard of care for glioblastoma (GBM) treatment involves maximal resection followed by concomitant radiotherapy and temozolomide. Progression-free survival (PFS) with this treatment is only 6.9 months and relapse is inevitable. At relapse, there is no consensus regarding the optimal therapeutic strategy. The rationale behind the fact that limited chemotherapy agents are available in the treatment of malignant gliomas is related to the blood-brain barrier (BBB), which impedes drug entry to the brain. Intraarterial (IA) chemotherapy allows to circumvent this. Using IA delivery of carboplatin, can produce responses in 70% of patients for a median PFS of 5 months. Median survival from study entry was 11 months, whereas the overall survival (OS) 23 months. How can the OS and PFS be improved? By combining chemotherapeutic agents with different mechanisms of action. Study design: In this phase II trial, treatment will be offered at relapse. Surgery will be performed for cytoreduction if it is warranted, followed with a combination IA carboplatin + IA Cealyx (liposomal doxorubicin) or IA carboplatin + IA etoposide phosphate. Toxicity will be assessed according to the NCIC common toxicity criteria. Treatment will consist in either IA carboplatin (400 mg/m^2) + IA Cealyx (30 mg/m^2) or IA carboplatin (400 mg/m^2) + IA etoposide phosphate (400 mg/m^2) every 4-6 weeks (1 cycle). Up to twelve cycles will be offered. Outcome measurements: Tumor response will be evaluated using the RANO criteria by magnetic resonance imaging monthly. Primary outcome will PFS and tumor response. Secondary outcome will include median OS, toxicity, quality of life (QOL), neurocognition (NC). Putting together these data will allow to correlate clinical and radiological response to QOL and NC.
Retention has been defined as "the holding of teeth following orthodontic treatment in the treated position for the period of time necessary for the maintenance of the result". Controversies regarding retention regime exist due to lack of high quality evidence regarding duration, type and timing of different type retainer.The present randomised controlled trial will be undertaken to assess the changes and compare if there is any difference in movement of teeth in post orthodontic treatment cases with immediate and delayed (post 7 days) delivery using beggs retainer and change in level of bone biomarker over 6 months period of retention .
The goal of this observational study is to investigate longitudinal stress response profiles and adaptive versus non-adaptive stress responses in alcohol use disorder. The main questions the projects aims to answer are: What are the neurobehavioral underpinnings of adaptive stress responses and resilience to repeated stress exposure with regards to: - alcohol craving? - alcohol use? - their modulation by prior stress exposure, social interactions, coping strategies and individual health behavior? Participants will: - be exposed to an established experimental stress-induction protocol, the Trier Social Stress Test - be exposed to their favorite drink in a bar lab environment - be assessed using fMRI to determine their neural alcohol cue reactivity, response inhibition, and emotion processing - conduct an ambulatory phase to assess stressors, alcohol craving, substance use and details on social interactions, health behavior and coping strategies using ecological momentary assessment tools.
The purpose of this study is to test the safety and tolerability of using a new treatment called autologous T lymphocyte chimeric antigen receptor cells against the CSPG4 antigen (iC9.CAR-CSPG4 T cells) in patients with head and neck cancer that came back after receiving standard therapy for this cancer. The iC9.CAR-CSPG4 treatment is experimental and has not been approved by the Food and Drug Administration. How many (dose) of the iC9.CAR. CSPG4 T cells are safe to use in patients without causing too many side effects, and what is the maximum dose that could be tolerated will be investigated. The information collected from the study would help cancer patients in the future. There are two parts to this study. In part 1, blood will be collected to prepare the iC9.CAR-CSPG4 T cells. Disease fighting T cells will be isolated and modified to prepare the iC9.CAR-CSPG4 T cells. In part 2, the iC9.CAR-CSPG4 T cells are given by infusion after completion of lymphodepletion chemotherapy. The data from the dose escalation will be used to determine a recommended phase 2 dose (RP2D), which will be decided based on the maximum tolerated dose (MTD). Additionally, recommended phase 2 dose will be tested. Eligible subjects will receive lymphodepletion chemotherapy standard followed by infusion of iC9-CAR.CSPG4 T cells. After treatment completion or discontinuation, subjects will be followed since involving gene transfer experiments.
Despite the progress in the therapy, Hodgkin's Lymphoma (HL) remains fatal for more than 15% of patients. Even in patients who are cured, the morbidity of therapy is substantial and long-lasting. New therapeutic agents are required therefore not only to further reduce mortality but also to alleviate morbidity. The majority of HL express the CD30 antigens. CD30 expression is routinely used for the diagnosis of HL. Preclinical observations support CD30 as a viable target of CAR-T therapy. This phase Ib/II study was conducted based on these observations. The purpose of this study is to determine the tolerability of ATLCAR.CD30.CCR4 cells in subjects with Hodgkin's Lymphoma and identify a recommended dose for further. This is a single-center, open-label phase Ib/II trial that uses a 3+3 design to identify a recommended phase 2 dose (RP2D) of ATLCAR.CD30.CCR4 cells in Hodgkin's Lymphoma. The phase II portion is designed to determine the PFS of ATLCAR.CD30.CCR4 in Hodgkin's Lymphoma. Subjects will be enrolled on 1 of 3 dose levels as determined by a 3+3 design. Up to 25 evaluable subjects may then be enrolled in the phase II portion of the study. Subjects may have cells procured to manufacture the ATLCAR.CD30.CCR4 cells if they meet eligibility for procurement. During the time period necessary to manufacture the ATLCAR.CD30.CCR4 cells, Subjects will be allowed to receive standard-of-care bridging therapy at the discretion of their local oncologist. Prior to cell infusion, subjects will undergo additional eligibility evaluations, and then if eligible, will undergo lymphodepletion followed by cell infusion 2-14 days later. Subjects will then be followed for 15 years as is required for studies involving gene transfer experiments.
The goal of this observational study is to evaluate the anti-lymphoma activity of glofitamab, administered according to the Compassionate Use Program, in relapsed/refractory B-NHL patients. The main question it aims to answer is the rate of patients in complete response.
There is high possibility of relapse of the lower anterior teeth after orthodontic treatment. Relapse is related with the initial orthodontic anomaly, pathology of surrounding tissues, patient's age and sex and compliance and the retention protocol applied. The options for the later are various. Permanent fixed retainers are considered of the most common ones and vastly vary based of composition. There are fixed retainers distinguished for their composition (SS, β-NiTi, fiber-reinforced composite retainers) or for their shape and dimensions (round or rectangular shape and single-strand or multi-strand respectively), and/or for the teeth they are placed on (canine and canine or canine to canine). Fixed retainers may require patient's cooperation , nevertheless debond failure rate varies between 0.1-53%. The aim of this prospective randomized clinical study is to compare failure incidents and retention effect on lower anterior teeth after orthodontic finish between three different types of fixed retainers. There will be 3 arms studied in this research: a) single strand 0.016x0.022'' β-Ti canine to canine, b) 0.028'' SS canine to canine and c) 0.027'' multi-strand twistflex canine to canine. Variables such as repeatability of failures, and undesired tooth movements will be measured. Measurements will be repeated every 3 months after patient's recruitment in this study, for one year period (12 months in total). Intraoral scans will be collected during baseline (fixed retainer insertion) and after 12 months.