News

Abnormal NK cells may disrupt immune activity in PNH: Study

People with paroxysmal nocturnal hemoglobinuria (PNH) have abnormalities in infection-fighting immune cells called natural killer (NK) cells, a study showed, shedding light on how this blood cell disorder may dysregulate the immune system. The study, “Role of NK cells in immune escape in patients with classical…

Top 5 PNH stories of 2025

In 2025, PNH News delivered timely coverage of the latest research developments and advances in care related to paroxysmal nocturnal hemoglobinuria (PNH). To close the year, we’ve compiled the five most-read stories. As we move into 2026, we remain committed to supporting the PNH community with clear reporting…

Rare case of PNH plus lymphoma highlights management challenges

A rare case of paroxysmal nocturnal hemoglobinuria (PNH) coexisting with diffuse large B-cell lymphoma (DLBCL), a type of blood cancer, was chronicled in a new report that sought to elucidate some of the challenges that can come with the management of the acquired blood disorder co-occurring with this cancer.

PiaSky treatment for PNH means fewer blood transfusions: Analysis

Treatment with PiaSky (crovalimab-akkz) controls hemolysis — the destruction of red blood cells in the body — in nearly all people with paroxysmal nocturnal hemoglobinuria (PNH), according to the results of a pooled analysis of published clinical trials. Further, the data also showed that about two-thirds of individuals…

Empaveli safely manages hard-to-control PNH during pregnancy

Empaveli (pegcetacoplan) was safely administered during a woman’s pregnancy to manage hard-to-control paroxysmal nocturnal hemoglobinuria (PNH), according to a recent study. Results showed that Empaveli effectively controlled the mother’s PNH, and the baby was born without complications. There were no detectable signs of the medication in…

Woman with rare lupus-PNH combo safely treated with PiaSky

Doctors for the first time used PiaSky (crovalimab-akkz) to control paroxysmal nocturnal hemoglobinuria (PNH) in a woman with the autoimmune disease systemic lupus erythematosus (SLE), according to a case study. The study’s authors said the case is the seventh documented instance of PNH occurring in someone with…

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…