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Discover 14,465 clinical trials near Los Angeles, California. Find research studies in your area.
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NCT06387394
The masseter muscle is one of the muscles in the lower face used for chewing. The prominence of the masseter muscle can appear as a widened lower face which some individuals deem as aesthetically undesirable and can be treated by selectively weakening the masseter muscles with small quantities of botulinum toxin. The purpose of this study is to assess how safe and effective injection of onabotulinumtoxinA (BOTOX) is in adult participants with Masseter Muscle Prominence (MMP). BOTOX is being investigated for the treatment of Muscle Masseter Prominence. In Period 1, participants are placed in 1 of 2 groups, called treatment arms. Each group receives a different treatment, placebo or BOTOX. There is a 1 in 4 chance that participants will be assigned to placebo. In Period 2, eligible participants can receive an optional open-label retreatment of BOTOX. Approximately 200 adult participants with MMP will be enrolled in the study at approximately 20 sites in the United States. Participants will receive intramuscular injections across both the right and left masseter muscle of either BOTOX or placebo on Day 1. Participants who are eligible for re-treatment will be given BOTOX injections on either the Day 180, 210, 240, or 270 visit and will be followed up for up to 6 months. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular monthly visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, checking for side effects, and completing questionnaires.
NCT05633355
The primary objective of this study is to describe the safety and tolerability of rocatinlimab in adolescents with moderate-to-severe AD.
NCT05908786
This is a Phase Ib/II, open-label, multicenter, randomized platform study to evaluate neoadjuvant immunotherapy combinations in participants with resectable HCC. The study is designed with the flexibility to open new treatment arms as new agents become available, close existing treatment arms that demonstrate minimal clinical activity or unacceptable toxicity, or modify the participant population.
NCT05363527
The purpose of this study is to use an experimental inflammatory challenge to examine whether older adults with symptoms of anxiety experience loss of pleasure or loss of motivation when they are exposed to inflammation. Loss of pleasure or loss of motivation will be evaluated using self-report questionnaires, computer tasks, and during a brain scan.
NCT01950390
This randomized phase II trial studies how well ipilimumab with or without bevacizumab works in treating patients with stage III-IV melanoma that cannot be removed by surgery. Immunotherapy with monoclonal antibodies, such as ipilimumab and bevacizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread.
NCT03615326
The study will compare the efficacy and safety of pembrolizumab plus trastuzumab in combination with standard of care (SOC) chemotherapy versus trastuzumab in combination with SOC chemotherapy in participants with HER2-positive gastric cancer. The primary hypotheses of the study are that pembrolizumab plus trastuzumab in combination with chemotherapy is superior to trastuzumab plus chemotherapy in terms of 1) progression free survival (PFS) per Response Evaluation Criteria in Solid Tumors 1.1 (RECIST 1.1) as assessed by blinded independent central review (BICR), and 2) overall survival (OS).
NCT03735667
To evaluate safety and effectiveness of the ACURATE Transfemoral Aortic Valve System for transcatheter aortic valve replacement (TAVR) in subjects with severe native aortic stenosis who are indicated for TAVR. As of 28-May-2025, Boston Scientific Corporation (BSC) announced the voluntary global discontinuation of the ACURATE product platform, including both the ACURATE neo2 and ACURATE Prime Aortic Valve Systems. BSC will no longer pursue regulatory approval for the device in the U.S. or other unapproved geographies.
NCT05521919
Research has shown that activation of the sympathetic nervous system for extended periods or during certain times in life can increase the risk for Alzheimer's disease. Some research in animal models show that acute activation of the sympathetic nervous system through stress exposure can increase certain Alzheimer's disease-related biomarkers, such as amyloid-beta, within hours of exposure. However, how acute sympathetic nervous system activation via stress exposure affects amyloid-beta levels in humans has yet to be examined. In this study, the investigators will examine whether brief increases in sympathetic activation result in immediate changes in plasma amyloid-beta levels in the five hours after exposure.
NCT07076147
This study assesses breast cancer screening adherence for women at moderately increased risk for developing breast cancer based on gene mutation status or empiric risk model estimates. It also seeks to determine facilitators and barriers to screening.
NCT01844986
Olaparib Monotherapy in Patients with BRCA Mutated Ovarian Cancer following First Line Platinum Based Chemotherapy.
NCT05568888
This is a prospective, multicenter, randomized, double-blind, placebo-controlled, parallel-group, large simple trial to investigate the efficacy and safety of a single intravenous (IV) infusion of BE1116 in subjects who have traumatic injury, with confirmed or suspected acute major bleeding and / or predicted to receive a large volume blood product transfusion.
NCT06502379
The purpose of this study is to assess the safety, tolerability, and pharmacokinetics (PK) of AZD8965 via single and multiple ascending doses in healthy participants (including Japanese and Chinese participants), and to assess the effect of food on the safety, tolerability, and PK of orally administered AZD8965.
NCT06153693
This is a Phase 3 trial to evaluate the BP-lowering effect of lorundrostat (an aldosterone synthase inhibitor) in subjects with uncontrolled and resistant hypertension taking between 2 and 5 anti-hypertensive (AHT) medications.
NCT06822790
This is an open-label study to be conducted in adults with hypertriglyceridemia (HTG) and severe hypertriglyceridemia (SHTG). Each participant must have completed all required visits per protocol in the parent study AROAPOC3-2003 (USA and Canada participants only; NCT# 05413135), AROAPOC3-3001(Canada and Japan participants only; NCT05089084), AROAPOC3-3003 (NCT06347003), AROAPOC3-3004 (NCT06347016) or AROAPOC3-3009 (Argentina, Italy, South Africa, and Spain; NCT06347133). Subjects who previously met all eligibility requirements for AROAPOC3-3003 or AROAPOC3-3004 and were not permitted to proceed to randomization per the Sponsor's direction in order to prevent excessive over-enrollment may also be enrolled in this trial. The subjects must meet all other applicable eligibility criteria prior to enrollment and have an HbA1c results of \<=10% within 30 days prior to Day 1. Subjects entering this OLE from AROAPOC3-2003 must meet the following additional criteria to be considered for enrollment in addition to applicable eligibility criteria: 1. HbA1c ≤10% within 30 days prior to Day 1 2. Completed AROAPOC3-2001 prior to entry into AROAPOC3-2003 AND fulfill either (c) or (d) 3. Baseline fasting TG level of ≥500 mg/dL and prior history of acute pancreatitis at the time of enrollment into AROAPOC3-2001 4. Baseline fasting TG level of ≥1000 mg/dL at the time of enrollment into AROAPOC3-2001 All eligible participants will receive plozasiran administered subcutaneously (SC) approximately every 3 months for 24 months. Participants will be counseled to remain on the specified low-fat diet throughout the study in accordance with local standard of care.
NCT07265271
Hepatocellular carcinoma (HCC) is often diagnosed at an advanced stage, and early detection is critical for improving patient outcomes. Despite this, reliable non-invasive biomarkers for early-stage HCC are limited. This study seeks to develop a cell-free tsRNA (cf-tsRNA)-based liquid biopsy assay for accurate detection of early-stage HCC.
NCT05602363
This is an open-label, multi-center Phase 1b clinical study of oral AS-1763 (docirbrutinib) in patients with CLL/SLL or B-cell NHL who have failed or are intolerant to ≥2 lines of systemic therapy.
NCT06144840
To investigate the efficacy of MT-7117 on time to onset and severity of first prodromal symptoms (burning, tingling, itching, or stinging) associated with sunlight exposure in adults and adolescents with EPP or XLP.
NCT04540497
This study aims to evaluate the efficacy and safety of inebilizumab for the prevention of flare of Immunoglobulin G4-related disease (IgG4-RD).
NCT06188689
Calcium Release Deficiency Syndrome (CRDS) is a novel inherited arrhythmia syndrome secondary to RyR2 loss-of-function that confers a risk of sudden cardiac death. Diagnosis of CRDS presently requires cellular-based in vitro confirmation that an RyR2 variant causes loss-of-function. We hypothesize that CRDS can be diagnosed clinically through evaluation of the repolarization response to brief tachycardia, mediated by cardiac pacing, and a subsequent pause.
NCT03401489
Program to Avoid Cerebrovascular Events through Systematic Electronic Tracking and Tailoring of an Eminent Risk-factor (PACESETTER) aims to assess the incorporation of its stroke intervention into 2 safety net/academic health systems in a given US state especially burdened by stroke, thereby enhancing knowledge about the complexity of stroke interventions, and especially the nature of the challenges encountered in low resource settings and for populations traditionally underrepresented in research. Altogether, the intervention, if proven implementable and effective, may eventually be exported to other medically underserved populations in the US beyond SC as a feasible model of post-stroke management.
