Marisa Wexler MS,  —

Marisa holds an MS in Cellular and Molecular Pathology from the University of Pittsburgh, where she studied novel genetic drivers of ovarian cancer. She specializes in cancer biology, immunology, and genetics. Marisa began working with BioNews in 2018, and has written about science and health for SelfHacked and the Genetics Society of America. She also writes/composes musicals and coaches the University of Pittsburgh fencing club.

Articles by Marisa Wexler

Precautions ensure safe C-section for woman with PNH, anemia

A case report highlights the steps necessary to prevent dangerous clots and minimize bleeding when performing a cesarean section on someone who has co-occurring paroxysmal nocturnal hemoglobinuria (PNH) and aplastic anemia, a condition in which the bone marrow fails to produce enough blood cells. Researchers in Greece described the…

Blood test markers may help predict response to PNH C5 treatments

Levels of certain immune proteins in the blood may help predict how well people with paroxysmal nocturnal hemoglobinuria (PNH) respond to the therapies Soliris (eculizumab) and PiaSky (crovalimab-akkz), a new study reports. “These findings indicate that higher baseline levels of these markers may help identify patients at…

Most immune reactions after PNH treatment switch are manageable

People switching between treatments for paroxysmal nocturnal hemoglobinuria (PNH) may develop transient immune complex reactions (TICRs) — a type of inflammatory reaction — but these are usually not serious and manageable, a new analysis of more than 200 people finds. The analysis covered people who switched from Soliris…

High satisfaction reported with Fabhalta in PNH patient interviews

Most people with paroxysmal nocturnal hemoglobinuria (PNH) treated with Fabhalta (iptacopan) in clinical trials reported high satisfaction and a meaningful easing of symptoms with the oral therapy, and generally preferred it over other older treatments. In fact, all patients previously treated with the PNH therapies Soliris (eculizumab)…

Most PNH patients on Empaveli avoid blood transfusions

Over the course of up to three years of treatment with Empaveli (pegcetacoplan), most people with paroxysmal nocturnal hemoglobinuria (PNH) did not require blood transfusions, according to a new analysis of clinical trial data. The analysis also indicated Empaveli led to long-term easing of fatigue and reductions in…

Extravascular hemolysis affects PNH patients on Soliris, Ultomiris

Up to 1 in 4 people with paroxysmal nocturnal hemoglobinuria (PNH) who are treated with Ultomiris (ravulizumab-cwvz) or Soliris (eculizumab) experience clinically significant extravascular hemolysis — the destruction of red blood cells — but this isn’t typically associated with severe fatigue, a new global study reported. Soliris…

In Phase 3 studies, Fabhalta eases fatigue, improves life quality in PNH

Treatment with Fabhalta (iptacopan) can ease fatigue and improve quality of life for people with paroxysmal nocturnal hemoglobinuria (PNH), according to data from two Phase 3 clinical trials. “These results … indicate that [Fabhalta] results in clinically meaningful disease control and meaningful improvements in the fatigue and [health-related…

Switch to Empaveli shows good efficacy in real-world Italian study

People with paroxysmal nocturnal hemoglobinuria (PNH) who switch to Empaveli (pegcetacoplan) after having an inadequate response to other, older treatments usually see good efficacy with the newer therapy, according to a study that looked at real-world data in Italy. Indeed, according to the researchers, “most patients exhibited a…

Fabhalta approved in Canada as oral PNH treatment for adults

Health Canada has approved the oral therapy Fabhalta (iptacopan) as a treatment for adults with paroxysmal nocturnal hemoglobinuria (PNH) who have hemolytic anemia. With that decision, Fabhalta has now become the first oral medication that can be used on its own to control PNH to win approval in…

PNH patients show five times lower mortality risk with Ultomiris

Long-term treatment with Ultomiris (ravulizumab) reduced the risk of death by five times in people with paroxysmal nocturnal hemoglobinuria (PNH), and also tended to eliminate the need for blood transfusions and to improve patients’ quality of life, a new analysis suggests. The findings were detailed in the study,…