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Discover 9,312 clinical trials near Seattle, Washington. Find research studies in your area.
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NCT04544449
A study to evaluate the efficacy and safety of fenebrutinib on disability progression in adult participants with Primary Progressive Multiple Sclerosis (PPMS). All eligible participants will be randomized 1:1 to either daily oral fenebrutinib (and placebo) or intravenous (IV) ocrelizumab (and placebo) in a blinded fashion through an interactive voice or web-based response system (IxRS). 985 participants were enrolled and recruited globally. Participants who discontinue study medication early or discontinue from the study will not be replaced. The Open-Label Extension (OLE) phase is contingent on a positive benefit-risk result in the Primary Analysis of the study.
NCT07204964
The purpose of this study is to assess the reactogenicity, safety and immune response of GlaxoSmithKline's (GSK) messenger RNA (mRNA)-based multivalent seasonal influenza vaccine candidates administered in healthy younger and older adults.
NCT05840159
This is a Phase 4 blinded, randomized, active-controlled, non-inferiority trial. Final evaluable population will include a minimum 596 individuals: 298 women with confirmed urogenital chlamydia (CT) and 298 men with confirmed rectal chlamydia (CT). Approximately 664 participants will be enrolled to achieve a minimum 596 participants who contribute primary outcome data. Randomization will be stratified by study site and sex: 332 women and 332 men. Participants will be randomized 1:1 to a 3-day regimen of doxycycline or a 7-day regimen of doxycycline. The study blind will be maintained by providing 7 days of identical pre-filled blister packs, one with 3 days of active treatment and 4 days of placebo, and the other with 7 days of active treatment. Participants will be asked to return 28 days after randomization (at day 29), at which time they will be re-tested for chlamydia (CT) using a laboratory-based chlamydia (CT) nucleic acid amplification test (NAAT).
NCT04368728
This is a Phase 1/2/3, randomized, placebo-controlled, observer-blind, dose-finding, vaccine candidate-selection, and efficacy study in healthy individuals. The study consists of 2 parts: Phase 1: to identify preferred vaccine candidate(s) and dose level(s); Phase 2/3: an expanded cohort and efficacy part. The study will evaluate the safety, tolerability, and immunogenicity of 3 different SARS-CoV-2 RNA vaccine candidates against COVID-19 and the efficacy of 1 candidate: * As a 2-dose (separated by 21 days) schedule; * At various different dose levels in Phase 1; * As a booster; * In 3 age groups (Phase 1: 18 to 55 years of age, 65 to 85 years of age; Phase 2/3: ≥12 years of age \[stratified as 12-15, 16-55 or \>55 years of age\]). The candidate selected for efficacy evaluation in Phase 2/3 is BNT162b2 at a dose of 30 µg. Participants who originally received placebo will be offered the opportunity to receive BNT162b2 at defined points as part of the study. In order to describe the boostability of BNT162, and potential heterologous protection against emerging SARS-CoV-2 VOCs, an additional dose of BNT162b2 at 30 µg will be given to Phase 1 participants approximately 6 to 12 months after their second dose of BNT162b1 or BNT162b2. This will provide an early assessment of the safety of a third dose of BNT162, as well as its immunogenicity. The assessment of boostability will be further expanded in a subset of Phase 3 participants at selected sites in the US who will receive a third dose of BNT162b2 at 30 µg or a third and potentially a fourth dose of prototype BNT162b2VOC at 30 µg (BNT162b2s01, based upon the South African variant and hereafter referred to as BNT162b2SA). A further subset of Phase 3 participants will receive a third, lower, dose of BNT162b2 at 5 or 10 µg. To further describe potential homologous and heterologous protection against emerging SARS-CoV-2 VOCs, a new cohort of participants will be enrolled who are COVID-19 vaccine-naïve (ie, BNT162b2-naïve) and have not experienced COVID-19. They will receive BNT162b2SA given as a 2-dose series, separated by 21 days. To reflect current and anticipated recommendations for COVID 19 vaccine boosters, participants in C4591001 who meet specified recommendations and have not already received one, will be offered a third dose of BNT162b2 after their second dose of BNT162.
NCT06703073
This is a Phase 2 multicenter, randomized, double-blinded, placebo-controlled study that will evaluate the safety and efficacy of host-directed therapeutics in hospitalized adults diagnosed with Acute Respiratory Distress Syndrome (ARDS) utilizing a platform trial design. Participants will be randomized to receive either a placebo or one of the active treatments. This record describes the default procedures and analyses for all cohorts. Each specific cohort may have additional eligibility requirements, safety and efficacy procedures, or endpoints, which will be described in the corresponding intervention-specific records on clinicaltrials.gov listed below in the detailed description.
NCT05510908
This study is being done to understand how many people with HIV (PWH) present for cancer care across the AIDS Malignancy Consortium in the United States and if there are reasons that some PWH choose to participate, or not in cancer clinical trials. Optional quality of life surveys will be used to learn more about how HIV and cancer and HIV and cancer treatment affect people.
NCT06611163
Phase 3 study to evaluate the efficacy and safety of subcutaneous tildrakizumab in subjects with moderate to severe genital psoriasis.
NCT02477696
This study is designed to evaluate progression-free survival (PFS) endpoint for acalabrutinib versus (vs) ibrutinib in previously treated chronic lymphocytic leukemia.
NCT00003140
RATIONALE: Estrogen can stimulate the growth of breast cancer cells. Hormone therapy using letrozole may fight breast cancer by reducing the production of estrogen. PURPOSE: This randomized phase III trial is studying letrozole to see how well it works in treating women with breast cancer who have received tamoxifen for at least 5 years.
NCT06072183
The purpose of this study is to learn about the safety and effects of the study medicine ritlecitinib for the possible treatment of nonsegmental vitiligo. Vitiligo causes white patches on your skin when the cells that give your skin color are destroyed. Nonsegmental means that it can affect both sides of the body such as both knees and both hands. Ritlecitinib has been tested in earlier clinical studies and has a favorable safety profile. At present there are no approved medications taken by mouth to treat nonsegmental vitiligo. This study is seeking participants who: * Are 18 years of age or older. * are confirmed to have nonsegmental vitiligo for at least 3 months. * Are willing to stop all other treatments that they may be taking for vitiligo. In this study participants will be chosen by chance, like drawing names out of a hat to receive 1 of 3 treatments: •Part I where two different amounts of ritlecitinib (50 mg and 100 mg) are taken once daily. It will be compared to placebo. Placebo is a dummy capsule. It doesn't have any medicine used in the study. Participants receiving placebo who have not responded to treatment after 52 weeks will be given 100 milligrams or 50 milligrams of ritlecitinib for the remaining 52 weeks of the study. • In Part II, participants will only receive 100 milligrams of ritlecitinib. About 1000 participants will take part in Part I and around 450 in Part II globally. The study will compare the experiences of people receiving ritlecitinib to those of the people who do not. This will help see if ritlecitinib is safe and effective. People in Part I will be in this study for about 26 months and people in Part II will be in this study for about 14 months. During the study, participants in part I will need to visit the study site at least 17 times. In part II, participants will visit at least 11 times. Participants will undergo various tests and procedures such as: * vitiligo rating, * physical examinations, * hearing tests, * blood tests, * x-ray, * ECG, * photographs of areas with vitiligo. Participants will be asked to complete questionnaires about their vitiligo.
NCT02520791
This phase I trial studies the side effects and best dose of anti-inducible T-cell co-stimulator (ICOS) monoclonal antibody MEDI-570 in treating patients with peripheral T-cell lymphoma follicular variant or angioimmunoblastic T-cell lymphoma that has returned after a period of improvement (relapsed) or has not responded to previous treatment (refractory). Immunotherapy with monoclonal antibodies, such as anti-ICOS monoclonal antibody MEDI-570, may induce changes in the body's immune system and may interfere with the ability of tumor cells to grow and spread.
NCT07037771
This multicenter, randomized, placebo-controlled study will evaluate the efficacy and safety of zodasiran subcutaneous (SC) injection in subjects 12 years of age and older with genetically or clinically diagnosed Homozygous familial hypercholesterolemia (HoFH). After completion of the double blind (DB) treatment period subjects will be eligible to continue in the optional open-label extension (OLE) period of the study. All placebo subjects who opt to continue will transition to active drug during the OLE Period.
NCT04663997
177Lu PSMA 617 is a new type of therapy which is designed to deliver high doses of radiation directly to prostate cancer sites in the body. The purpose of this study is to find out whether 177Lu PSMA 617can slow the growth of prostate cancer compared to standard chemotherapy treatment
NCT05243797
This is a multicenter, randomized, open-label, Phase 3 study in participants with newly diagnosed multiple myeloma to evaluate the benefits of teclistamab in combination with lenalidomide and teclistamab alone versus lenalidomide alone as maintenance therapy after autologous stem cell transplant.
NCT06295809
This is a two-part (Phase 2/Phase 3) study of intismeran autogene, an individualized neoantigen therapy (INT), plus pembrolizumab in participants with locally resectable advanced cutaneous squamous cell carcinoma (LA cSCC). Phase 2 has three arms intismeran autogene plus pembrolizumab given as neoadjuvant and adjuvant treatment with standard of care (SOC), standard of care (surgical resection with/without adjuvant radiation therapy (RT) only at investigator's discretion) and pembrolizumab monotherapy given as neoadjuvant and adjuvant treatment with SOC. This phase will assess the safety and efficacy of intismeran autogene in combination with pembrolizumab as neoadjuvant and adjuvant therapy in participants with resectable LA cSCC as compared to standard of care SOC only. The primary hypothesis is that intismeran autogene plus pembrolizumab with SOC is superior to SOC only with respect to event free survival (EFS) as assessed by the investigator. Phase 3 expansion will be determined by prespecified Go-No-Go decision in which 412 additional participants will be randomized to intismeran autogene plus pembrolizumab with SOC and SOC only, without changing the inclusion/exclusion criteria for the additional enrollment or study endpoints. As of Amendment 04, enrollment was stopped and there will be no Phase 3 expansion.
NCT06445023
The purpose of this study is to establish the efficacy, safety and tolerability of barzolvolimab in adult participants with Chronic Spontaneous Urticaria (CSU) inadequately controlled by non-sedating second generation H1-antihistamines in comparison to placebo.
NCT05813678
This is a 10-year multi-center, global, observational study to further characterize the safety profile of pegvaliase, including hypersensitivity reactions, long-term safety and tolerability, and the effectiveness of the additional risk minimization measures (aRMMs) (European Union (EU) only) in subjects receiving pegvaliase for the treatment of PKU. Subjects for whom a clinical decision has been made that they will receive pegvaliase to treat their PKU within 30 days following the date of enrollment (incident-users) or have previously started treatment with pegvaliase at the date of enrollment (prevalent-users) are eligible for participation in this study.
NCT06224192
The primary objective of this study is to assess successful self-administration of rocatinlimab subcutaneously using devices for injection.
NCT06921850
The purpose of the study is to assess the PK of bimekizumab following subcutaneous (sc) administration in study participants with moderate to severe hidradenitis suppurativa (HS)
NCT06444113
This study will evaluate whether ofatumumab is excreted at quantifiable levels and at which concentrations in breast milk of lactating women with RMS). The study will include lactating mothers who plan to breastfeed and initiate/re-initiate ofatumumab 2-24 weeks post-partum.
