Multiple Sclerosis clinical trials at UC Irvine

The purpose of this study is to evaluate the safety, tolerability, efficacy, and drug levels of CC-97540 in participants with Relapsing Forms of Multiple Sclerosis (RMS) or Progressive Forms of Multiple Sclerosis (PMS).

In this study, researchers will learn more about a study drug called BIIB091 in participants with MS who may be experiencing relapses. It is a 2-part study. In Part 1, one set of participants will take either BIIB091 or diroximel fumarate (DRF). In Part 2, a different set of participants will take either a combination of BIIB091 and DRF or DRF alone. The goal of the study is to learn more about the safety of BIIB091 and to compare the effects of the study drug when taken alone or together with DRF. The main question researchers are trying to answer are: - How many participants have new or worsening medical problems (adverse events) after taking BIIB091 or DRF? - How many new areas of inflammation occur in the brain after treatment with BIIB091 and DRF? Researchers will use magnetic resonance imaging (MRI) scans to compare images of the brain before and after treatment. They will also explore the effect of BIIB091 and DRF on the heart using electrocardiograms (ECGs). The study will be done as follows: - After screening, participants who joined Part 1 will be randomly assigned to receive either a high or low dose of BIIB091, or the standard dose of DRF. - The results of Part 1 will be used to choose the best dose of BIIB091 to use in Part 2. - Participants who join Part 2 will be randomly assigned to receive either a standard dose of DRF, a combo of BIIB091 and the standard dose of DRF, or a combo of BIIB91 with a low dose of DRF. - Neither the researchers nor the participants will know which drug or dose the participants will receive in either part of the study. - The treatment period will last 48 weeks in each part of the study. Participants will take the drugs by mouth 2 times a day. - Each part will also have a follow-up safety period that lasts up to 2 weeks. - In total, participants in each part will have 20 study visits, or more if they have a relapse. The total study duration for participants will be up to 54 weeks.

The purpose of each study is to independently measure the annualized relapse rate (ARR) with administration of frexalimab compared to a daily oral dose of teriflunomide in male and female participants with relapsing forms of multiple sclerosis (aged 18 to 55 years at the time of enrollment). People diagnosed with relapsing forms of multiple sclerosis are eligible for enrollment as long as they meet all the inclusion criteria and none of the exclusion criteria. Study details include: - This event-driven study will have variable duration of approximately 40 months for the first participant being randomized and approximately 20 months for the last participant randomized. - The study intervention duration will vary ranging from approximately 12 to 40 months. - The assessment of scheduled visits will include 1 common end of study [EOS] visit and 3 follow-up visits) with a visit frequency of every 4 weeks for the first 6 months and then every 3 months.