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The purpose of this study is to evaluate the safety of ublituximab use in the older MS adult population, as measured by incidence of infection rate
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.
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), Progressive Forms of Multiple Sclerosis (PMS) or Refractory Myasthenia Gravis (MG).
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 depending on the recruitment rate, the event rate, the study discontinuation rate and the 12-month minimum treatment duration. Different participants will have different study durations. The last participant randomized will have at least 12 months of study duration, and assuming a 28-month recruitment period, the first participant randomized will have 40 months or longer of study duration. * The study intervention duration will vary similarly as the study duration. * 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.
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.
We aim to assess the effect of Ofatumumab on microglial activation using \[F-18\]PBR06 PET in MS patients in relation to changes in serum markers, MRI abnormalities and clinical impairment longitudinally over 9 months. Specific Aims: Specific Aim 1: To determine the effect of Ofatumumab on microglial activation in MS over 9 months. Specific Aim 2: To determine the time course of effect of Ofatumumab on microglial activation and its relationship with peripheral B-cell depletion, serum neurofilament light (sNfL) chain and glial-fibrillary acid protein (GFAP) levels and other serum biomarkers Specific Aim 3: To determine the relationship of PET changes following Ofatumumab initiation with 3T MRI changes and clinical parameters.
The primary objective of the study is to estimate the prevalence of major congenital malformations (MCMs) and compare the prevalence between the diroximel fumarate (DRF) and comparator groups. The secondary objectives of the study are to estimate the incidence of spontaneous abortion (SA) and compare the incidence between the DRF and comparator groups; to estimate the incidence of preterm birth and compare the incidence between the DRF and comparator groups; to estimate the incidence of stillbirth and compare the incidence between the DRF and comparator groups and to estimate the prevalence of small for gestational age (SGA) and compare the prevalence between the DRF and comparator groups.