Andrea Lobo, PhD, science writer —

In a real-world study in Germany, Givlaari (givosiran) was found to effectively prevent severe acute attacks and reduce chronic health burden in people with acute intermittent porphyria (AIP) — patients who are commonly excluded from porphyria studies and who would have been ineligible to participate in the…

Undiagnosed hereditary hemochromatosis in a 34-year old woman played a key role in her developing porphyria cutanea tarda (PCT), according to a case report. The woman was treated with therapeutic phlebotomy, or bloodletting, to remove excess iron from the blood, which significantly eased her symptoms. Hereditary hemochromatosis is a…

Vitamin D plays a crucial role in maintaining and enhancing bone mineral density in people with erythropoietic protoporphyria (EPP), according to a study from the Netherlands. EPP patients in the study had high prevalence of osteopenia, or lower-than-normal bone density, and osteoporosis, a more severe form of bone loss.

Note: This story was updated Oct. 25, 2024, to correct that hemin was used during this study to treat porphyria attacks. Long-term use of the approved therapy Givlaari (givosiran) safely led to sustained reductions in porphyria attacks, and in the need for medications to treat such attacks, in…

The United Porphyrias Association (UPA) has received a five-year grant from the Chan Zuckerberg Initiative Rare As One Project to support efforts including advancing progress on the diagnosis, research, and treatment of porphyria. The association said the grant will “significantly enhance UPA’s ability to build a comprehensive…

A 21-year-old woman was diagnosed with congenital erythropoietic porphyria (CEP) — the rarest of porphyria types — after developing acute liver failure and swelling in the legs and mouth associated with the intake of ferrous sulfate, an iron supplement. The woman had a previous history of chronic iron deficiency…

The case of a 16-year-old girl with recurrent acute intermittent porphyria (AIP) attacks who saw her symptoms ease after she started treatment with Givlaari (givosiran) has been reported in the U.S. The injectable therapy in the U.S. is approved only for adults with acute forms of porphyria, unlike…

The dosing of Givlaari (givosiran) may be personalized for people with acute intermittent porphyria (AIP), who are in stable condition after one year of treatment. That’s according to a recent study that described the cases of three women for whom treatment normalized the levels of delta-aminolevulinic acid (ALA),…

Children with erythropoietic protoporphyria (EPP) — who have severe skin hypersensitivity to sunlight — experience “markedly reduced” physical and social quality of life compared with healthy youngsters, and even relative to adults with the condition, according to a study done in the Netherlands and Belgium. “Ensuring treatment availability for…

Blood levels of neurofilament light (NfL), a marker of nerve cell damage, are 68 times higher during an acute attack in people with acute hepatic porphyria (AHP) than the levels seen in healthy adults, a recent study reported. NfL levels were elevated in patients with sporadic or recurrent porphyria…