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

MS TreatSim Program Allows Simulation of RRMS Clinical Trials

Researchers have created a computer program that can simulate clinical trial responses for relapsing-remitting multiple sclerosis (RRMS), which may improve clinical trial design for novel disease-modifying therapies. The tool, called MS TreatSim, was described in the study, “In silico clinical trials for relapsing-remitting multiple sclerosis…

Testing for 4 Gene Variations May Predict Risk of PML Brain Infection

Genetic variations in certain genes may increase the risk of developing progressive multifocal leukoencephalopathy (PML), a serious brain infection associated with certain treatments for multiple sclerosis (MS) and other conditions, a new study shows. The findings suggest that testing for four specific genetic variant could help to predict…

New Machine Learning Algorithm May Better Predict Severity in MS

A machine learning algorithm that incorporates genetic data alongside clinical and demographic information may be able to more accurately predict the severity of multiple sclerosis (MS), according to a new study. “Once independently validated, the machine learning algorithm could enable clinicians to provide patients with more accurate prognostic information,…

Novel CAR T-cell Therapy Shows Promise in MS Mouse Study

Researchers have developed a technique that uses CAR T-cells, a form of cell therapy, to specifically eliminate the self-reactive immune cells that drive multiple sclerosis (MS), without destroying healthy immune cells needed to protect against infection. “Our CAR-T cells were very effective at treating mice that have an MS-like…

Switching to Ocrevus Over Other MS Therapies Means Fewer Relapses

People with relapsing-remitting multiple sclerosis (RRMS) who switch to Ocrevus (ocrelizumab) after discontinuing Gilenya (fingolimod) have fewer relapses than those who switch to Mavenclad (cladribine) or Tysabri (natalizumab), according to a new study. Rates of disability worsening were similar for Ocrevus and Tysabri, but patients who switched…

Add-on Supplement May Bolster Interferon Therapies for RRMS

A dietary supplement called Neuroaspis plp10 significantly lowered relapse rates and slowed disability progression among people with relapsing-remitting multiple sclerosis (RRMS) on interferon beta medications, according to a small clinical trial in Greece. “The results of this study suggest that Neuroaspis plp10 may offer greater benefit to patients with RRMS…

Panel Calls for New Way to Classify MS Based on Underlying Biology

An international panel is calling for new methods to classify multiple sclerosis (MS) that reflect the disease’s underlying biology, rather than differences in clinical presentation. The approach would fundamentally change how patients, clinicians, and other stakeholders understand and describe the disease, but would enable the development of biologically based…

2 Years of Vidofludimus Calcium Thwarts Disability Progression: Data

Most adults with relapsing-remitting multiple sclerosis (RRMS) who received Immunic Therapeutics‘ investigational therapy vidofludimus calcium have had no confirmed disability progression after two years of treatment. That’s according to new interim data from the open-label extension portion of the EMPhASIS trial, which has been running for nearly…

How Stem Cell Transplant Can ‘Reset’ Immune System in MS: Study

Following an autologous hematopoietic stem cell transplant (aHSCT) in people with multiple sclerosis (MS), the population of “naïve” T-cells — components of the immune system that enable the body to fight off new, unrecognized infections — is completely renewed but some memory T-cells, which are responsible for rapid responses…

Rituximab Doses for MS Might Be Best Timed By Measuring B-cells

Timing doses of rituximab by measuring B-cell counts is a more tailored approach to treatment, and it effectively reduces relapses and disability progression in multiple sclerosis (MS), according to a small study in patients with active disease. This tailored approach allowed patients to receive less frequent doses if their B-cell counts…

Dietary Changes Can Help Ease Fatigue, Improve Quality of Life

Dietary interventions may help ease fatigue and improve quality of life in people with multiple sclerosis (MS), although it doesn’t seem to impact disability progression, according to a new analysis. Researchers emphasized that it’s difficult to draw solid conclusions about the impact of diet in MS because there haven’t…

MS Therapy EHP-101 Boosts Blood Vessel Growth, Targets Inflammation

EHP-101, an experimental treatment being clinically tested for multiple sclerosis (MS), activates a cellular signaling pathway that promotes blood vessel development and reduces inflammation following brain injury, a new study shows. The findings continue to support the use of EHP-101 in MS, a condition marked by excess inflammation and…