Marisa Wexler, MS, senior science writer —

Marisa holds a Master of Science in cellular and molecular pathology from the University of Pittsburgh, where she studied novel genetic drivers of ovarian cancer. Her areas of expertise include cancer biology, immunology, and genetics, and she has worked as a science writing and communications intern for the Genetics Society of America.

Articles by Marisa Wexler

FDA clears AI tool for detecting disease activity on MRI scans

Pixyl.Neuro, a next-generation software that uses artificial intelligence (AI) in analyzing MRI scans to help detect and monitor multiple sclerosis (MS) disease activity, has received 510(k) clearance from the U.S. Food and Drug Administration (FDA) for clinical use. 510(k) clearance is required for medical devices used in the…

ATA188 fails to outperform placebo in EMBOLD clinical trial

ATA188, an experimental cell therapy targeting the Epstein-Barr virus, failed to outperform a placebo at easing disability levels in people with nonactive progressive forms of multiple sclerosis (MS), according to data from the Phase 2 portion of the EMBOLD clinical trial. The medication also showed no signs of…

AI tool has potential to better track MS lesions over time: Study

An artificial intelligence (AI) program, called iQ-MS, outperforms traditional radiologist-based measures at quantifying changes in lesions over time in people with multiple sclerosis (MS), a new study shows. “iQ-MS is a sensitive and accurate tool for monitoring MRI scans in people with MS by providing quantitative metrics that value-add…

ECTRIMS 2023: New research may help explain EBV and MS link

New research by scientists in Austria may shed light on the link between the Epstein-Barr virus (EBV) and multiple sclerosis (MS), and explain why only some people infected with EBV — previously found to raise the risk of MS by 32 times — go on to develop the neurodegenerative disorder. Distinct…

ECTRIMS 2023: Fenebrutinib lowers new lesions in relapsing MS

Treatment with the investigational therapy fenebrutinib significantly reduced the number of new inflammatory lesions visible on MRI scans in people with relapsing forms of multiple sclerosis (MS). Pharmacological data from the study suggest the anti-inflammatory experimental medication can get into the brain and spinal cord at levels high…

ECTRIMS 2023: More disease activity when treatment stopped

A clinical trial that was testing if treatments for multiple sclerosis (MS) could be discontinued in people with stable disease was terminated early after several patients who stopped treatment saw new disease activity. The findings support the continued use of disease-modifying therapies (DMTs) even by those who haven’t…

ECTRIMS 2023: Personalized dosing of Tysabri shows good efficacy

A personalized dosing schedule for Tysabri (natalizumab) that aims to maintain blood levels of the drug above a certain threshold seems to be just as effective for controlling disease activity in relapsing-remitting multiple sclerosis (RRMS) as the approved every-four-week dosing schedule. That’s according to interim data from an…

ECTRIMS 2023: Under-the-skin Ocrevus found to be powerful in MS

A new under-the-skin formulation of Ocrevus (ocrelizumab) — administered in 10 minutes — is at least as effective as the approved intravenous, or into-the-vein, formulation among people with multiple sclerosis (MS), according to new clinical trial data. Most people given either the new subcutaneous formulation or the intravenous…

ECTRIMS 2023: EBV may trigger attack on brain protein ANO2

Infection with the Epstein-Barr virus (EBV) may prime the immune system to accidentally attack a brain protein called ANO2, new research shows. The findings may explain how EBV infection can lead to developing multiple sclerosis (MS), at least in some patients. Daniel Jons, PhD, a scientist at the…

ECTRIMS 2023: Vidofludimus calcium lowers RRMS nerve damage

Six months of treatment with the experimental oral therapy vidofludimus calcium (IMU-838) led to significant reductions in a marker of nerve damage among people with relapsing-remitting multiple sclerosis (RRMS), according to a new analysis of data from a Phase 2 clinical trial. Previous data indicated the therapy significantly reduced…