View clinical trials related to Hypersensitivity.
Filter by:Studies have reported that tumors with the same immunogenic mutations may induce T cell receptor (TCR) domains with similar antigen recognition functions. By assembling the complementarity-determining region 3 (CDR3) of TCRs from RNA-seq data and correlating them with 9142 samples from TCGA data, an in-depth analysis of the TCR pool in the tumor microenvironment found a strong correlation between the CDR3 sequences of tumor-infiltrating T cells and tumor mutation burden. Fairfax et al. found that in patients responding to tumor immunotherapy, the TCR immune pool of CD8+ T cells produces many clones with extremely high abundance (exceeding 0.5%) . Cader et al. also found significant changes in the TCR immune pool of patients with Hodgkin's lymphoma responding to PD-1 tumor immunotherapy. Based on these theoretical foundations, evaluating the dynamic changes of the TCR immune pool is expected to be used to analyze the immune characteristics and changes in diseases such as malignant tumors.
The investigators explore the efficacy and safety of adebrelimab (PD-L1 inhibitor) plus chemotherapy and bevacizumab induction therapy followed by maintenance therapy with adebrelimab plus fluzoparib (PARP inhibitor)and bevacizumab in platinum-sensitive relapsed ovarian cancer.
The purpose of this exploratory study is to evaluate the effects of inhaled epinephrine in patients with known or suspected metabisulfite sensitivity who experience a systemic allergic reaction (SAR) while undergoing allergy testing, immunotherapy or oral challenges.
This is a Phase IV, open-label, single-center study to evaluate the change in FeNO as a marker of clinical response to OMA in participants with multiple FA.
This study consists of two home-based exercise programs: a stationary exercise bicycle intervention (Arm A), and a walking intervention (Arm B). The study will enroll 24 patients who are starting ADT (Androgen Deprivation Therapy)/ARSI (Androgen-Receptor Signaling Inhibitors) therapy for newly diagnosed metastatic castrate-sensitive prostate cancer (mCSPC). All participants will be asked to complete 1-2 training sessions at UVA prior to starting the exercise. All participants will be asked to complete aerobic and strength testing before and after the exercise program. Participants will be asked to answer questionnaires throughout the program. The at-home exercise will last for 12 weeks.
Egypt's several regions-rural, mixed, and urban-were given pre-designed surveys pertaining to drug adverse events and the role of pharmacovigilance in detection and reporting. The three sections of the survey were dedicated to studying health care professionals' knowledge concerning pharmacovigilance concepts and practices, as well as demographics and people reported or not reported. The survey also asked more questions regarding adverse occurrences that were reported.
Molar incisor hypomineralization (MIH) manifests as a qualitative, demarcated defect in tooth enamel of systemic origin, predominantly affecting one or more permanent first molars, and potentially extending to the incisors. One significant challenge in managing this enamel anomaly is hypersensitivity, leading to discomfort and pain in affected patients. Low-intensity laser therapy, alone or combined with other modalities, appears promising in alleviating pain associated with MIH. This study aims to assess the efficacy of low-intensity laser therapy using varied parameters, in conjunction with a remineralizing agent, for pain management in children with molar incisor hypomineralization. Participants aged 6 to 12 years will be recruited, with a total of 88 teeth diagnosed with MIH, presenting a sensitivity score ≤3 on the Visual Analog Scale (VAS) and a score ≤1 on the Schiff Cold Air Sensitivity Scale (SCASS). The teeth will be randomly assigned to one of four groups (n=22 each): Group I (GI): L-1J + VF, Group II (GII): L-1J + VP, Group III (GIII): L-2J + VF, and Group IV (GIV): L-2J + VP. Here, 'L' denotes low-intensity laser application at different parameters (1J and 2J), combined with either fluoride varnish (VF) or a placebo varnish (VP). Interventions and assessments will be conducted initially, after 48 hours, and at 1 and 2 weeks post-treatment. Patients will undergo re-evaluation at 2, 4, 8, and 12 weeks following interventions. Statistical analyses will be performed with a 95% confidence level (α = 0.05).
This study aims to show the effect of VR on skin prick test-related pain and fear in children. The investigators will compare the effect of VR on skin prick test-induced pain and fear in children applying to the Pediatric Allergy outpatient clinic with controls who underwent skin prick test without the use of VR.
This randomized, double-blind, placebo-controlled clinical study aims to evaluate the effect of a gel formulation based on 10% of pregabalin in the treatment of HD and on the participants' quality of life. The sample calculation will be based on previous work. After selecting participants, the participants will be randomly assigned to the following groups: placebo control group (CG), potassium nitrate gel group (GNK) and pregabalin gel group (GPG). A questionnaire (QEDH-15) to assess the impact of desensitizing treatment on oral health-related quality of life (OHRQoL) will be applied at baseline (T0) and in the last sensitivity record (T6). Pain will be assessed using a visual analogue scale after evaporative stimulation with an air jet and tactile stimulation with an exploratory probe. Three desensitizing treatment sessions will be carried out, with an interval of 72 hours between them. Sensitivity recording will be performed at T0 (baseline), T1 (after the first session), T2 (after the second session), T3 (after the third session), T4 (7 days after the last session), T5 (one month after the last session) and T6 (3 months after the last session). Data will be collected and subjected to statistical analysis for parametric data (ANOVA followed by Student-Newman-Keuls) or non-parametric data (Friedman's ANOVA followed by Tukey). To analyze the impact on quality of life, the Friedman test will be used.
The aim of this study is to define local immune responses in the GI tract to food antigens in IBS patients, with and without Brachyspira infection, using advanced imaging. We hypothesize that Brachyspira infection can cause IBS symptoms by inducing loss of oral tolerance to dietary antigens through development of food-specific intestinal immune reactions and subsequent development of visceral hypersensitivity. During this study, the investigators will perform either confocal laser endomiscroscopy (CLE) or colonoscopic antigen provocation test (COLAP) to test to which food items the participants react to. Furthermore, the investigators will perform rectal barostat examination and a sigmoidoscopy without laxatives. The investigators will collect biological samples and the participants will complete several questionnaires.