Tepezza became an instant blockbuster when it hit the market as the first targeted therapy for thyroid eye disease, a rare autoimmune condition that causes eyes to bulge, vision problems, and can lead to long-term damage to the eyes. The success of Tepezza drove Amgen’s $27.8 billion acquisition of Horizon Therapeutics, announced at the end of 2022. Now, Viridian Therapeutics is developing veligrotug, a potential challenger to Tepezza. It’s betting that its demonstrated efficacy, greater dosing ...
Jul 10, 2025•40 min
When Ben Davies was born, he had difficulty breathing. He also suffered from recurrent infections. It took five years of being in and out of hospitals, and the persistence of his mother Traci Davies, who brought him to different doctors, before a physician diagnosed him with primary immunodeficiency. The rare condition leaves people with weakened immune systems. Years later, Traci herself would discover that she too suffered from the same rare condition. We spoke to Ben Davies and Traci Davies a...
Jul 03, 2025•28 min
When Melanie Kandzierski took on the role of being mother to her granddaughter Rosie, she didn’t know how it would change her world. Rosie began experiencing seizures and she would eventually be diagnosed with a Dravet syndrome, a rare form of epilepsy that not only causes seizures, but developmental delays, motor issues, and behavioral challenges. Kadzierski discusses how she has learned to care for a child with Dravet syndrome, care for herself, and to advocate not only for Rosie but others wi...
Jun 26, 2025•24 min
One of the challenges of delivering gene therapies to the eye is that once a subretinal injection is made, the therapy’s distribution is confined to the margins of the pocket of fluid that is created, known as a bleb. Atsena, which is developing gene therapies for X-linked retinoschisis and Leber congenital amaurosis 1, uses its AAV.SPR technology that allows the gene therapy to spread laterally after injection. We spoke to Patrick Ritschel, CEO of Atsena Therapeutics, about the challenges of ge...
Jun 19, 2025•17 min
In a medical first, a team at Children’s Hospital of Philadelphia and Penn Medicine has successfully treated an infant diagnosed with a rare genetic disorder by using a customized CRISPR gene editing therapy. The work, led by Penn Medicine’s Kiran Musunuru and CHOP’s Rebecca Ahrens-Nicklas, points to the potential to use bespoke gene editing therapies to treat others with rare genetic diseases for which no available medicines exist. We spoke to P.J. Brooks, deputy director of the Office of Rare ...
Jun 12, 2025•41 min
The Children’s Tumor Foundation has been effective in working with drug developers to advance new therapies for neurofibromatosis, a group of rare, genetic conditions that cause tumors to grow on nerves throughout the body. Part of its success has been its ability to get biopharmaceutical companies to reposition assets once in development for other conditions as potential treatments for neurofibromatosis. We spoke to Annette Bakker, CEO of the Children's Tumor Foundation, about the complexities ...
Jun 05, 2025•49 min
Epicrispr Biotechnologies is using CRISPR to modulate the expression of disease-causing genes without making cuts to DNA. Its lead program is in development to treat FSHD, a genetic disorder that causes progressive weakness in the muscles of the face, shoulders, and upper arms. We spoke to Amber Salzman, CEO of Epicrispr, about how its one-and-done therapies work to target the epigenome, the company’s lead program in FSHD, and the broader applications for its therapeutic approach.
May 29, 2025•26 min
One of the hallmarks of the rare genetic disorder Prader-Willi syndrome is hyperphagia, an insatiable desire to eat. Households with someone with Prader-Willi syndrome often have to take measures to restrict access to food, such as locking refrigerators, pantries, and trash cans. They must also deal with the complex behavioral challenges associated with the condition. Earlier this year, Soleno Therapeutics won approval for VykatXR, the first FDA-approved therapy for treating hyperphagia. We spok...
May 22, 2025•20 min
CTX is a rare metabolic disease that can cause seizures, developmental delays, and intellectual disability. Now, a diagnostic test that can detect the condition early is available, and a treatment that can prevent the disease's serious effects has won regulatory approval. We spoke to Bart Duell, professor of medicine at Oregon Health Sciences University, about CTX, the role OHSU played in developing a diagnostic and advancing a treatment for CTX; and the critical interplay between academic medic...
May 15, 2025•23 min
Biliary tract cancers are a group of rare cancers with limited treatment options and generally poor outcomes because most patients are diagnosed at an advanced stage. There are efforts to address that through the development of early detection tools. And the use of biomarker testing can today match as many as half of these patients to a targeted therapy, although it’s critical to make people aware of the importance of this. We spoke to Rachna Shroff, associate director of clinical investigations...
May 08, 2025•22 min
Drug development activities focused on the rare, neuromuscular condition Duchenne muscular dystrophy have translated into functional improvements and an extension of life expectancy. Regenxbio is among several companies pursuing a gene therapy to treat Duchenne. Regenxbio believes both its microdystrophin—a truncated form of the dystrophin gene small enough to fit in a vector—and the vector it is using, give it a competitive advantage over other efforts. We spoke Curran Simpson, CEO of Regenxb...
May 02, 2025•28 min
GRIN-related disorders are a group of rare neurodevelopmental conditions that can cause intellectual disability, behavioral challenges, and seizures. GRIN Therapeutics is developing a once-failed development candidate for chronic neuropathic pain, known as radiprodil, as a potential treatment for GRIN-related disorders driven by gain-of-function mutations. We spoke to Bruce Leuchter, president and CEO of GRIN Therapeutics, about GRIN-related disorders, how the company came to develop radiprodil,...
Apr 24, 2025•33 min
Osteosarcoma is a rare and aggressive bone cancer that usually affects children and teenagers. Over the past 40 years, there’s been little progress to improve survival rates, with the five-year survival rate stagnant at about 60 to 70 percent for localized disease and 15 to 30 percent for metastatic osteosarcoma. OS Therapies is developing an experimental immunotherapy to treat certain osteosarcomas. We spoke to Paul Romness, president and CEO of OS Therapies, about why osteosarcomas have been d...
Apr 17, 2025•25 min
When Paul Biderman was born, he had trouble gaining weight. He grew sicker and, at about six months, he was diagnosed with the ultra-rare genetic disease abetalipoproteinemia, a condition that impairs a person’s ability to absorb fats and fat-soluble vitamins. The condition requires adherence to a strict diet and a regimen of daily vitamin supplementation, which he didn’t always follow. Now approaching 60, Biderman suffers from neuropathy in his lower limbs and is losing his eyesight. We spoke t...
Apr 10, 2025•30 min
Spinocerebellar ataxia includes a group of rare, genetic, neurodegenerative disorders. People with the condition suffer from the loss of balance, coordination, and muscle control. As the condition progresses, people can lose the ability to walk and speak. There is no approved treatment for SCA, but Biohaven has applied to the U.S. Food and Drug Administration to begin marketing its experimental therapy troriluzole, which can normalize levels of glutamate, a key neurotransmitter implicated in the...
Apr 03, 2025•24 min
Netherton syndrome is a rare and chronic skin condition. One in ten infants with the disease will die as a result of infections and related complications. Azitra has developed a platform for engineering bacteria that naturally colonize the skin to produce proteins with therapeutic benefits to treat Netherton syndrome and other conditions. We spoke to Travis Whitfill, co-founder and chief operating officer of Azitra, about Netherton syndrome, the company’s platform technology for engineering live...
Mar 27, 2025•28 min
Emerging cell and gene therapies represent areas of great promise for people with rare, genetic diseases, but the translation gap for these medicines can leave them stalled at the lab. Mass General Brigham in 2022 launched the Gene and Cell Therapy Institute, a research hub dedicated to advancing gene and cell therapies for various diseases to bridge the divide between academic labs and clinical development of therapies. The institute brings together more than 500 researchers and clinicians and ...
Mar 20, 2025•34 min
Raziel Green lost both her mother and aunt to the rare neurodegenerative disease amyotrophic lateral sclerosis or ALS. But when Green, a runner, began experiencing muscle weakness and falls, doctors failed to recognize that she had a genetic form of the condition. Two years after she first sought care, she was diagnosed with the SOD1 form of the disease and enrolled in a clinical trial of what would become the antisense oligonucleotide Qalsody. We spoke to Green about her experience with ALS, he...
Mar 13, 2025•28 min
While traveling in Australia, Russ Walter was taken to the hospital and treated for heart palpitations. When he returned home, he soon lost the ability to walk. He was diagnosed with the rare autoimmune condition Guillian-Barre syndrome and spent three months in intensive care and rehabilitation. It would take nearly a year of physical therapy before he could walk again. We spoke to Walter, liaison and board member of the GBS-CIDP Foundation International, about his recovery from Guillian-Barre ...
Mar 06, 2025•24 min
Organoids, three-dimensional cell models that can replicate an individual’s organs, are valuable tools for testing medicines that might treat their illness. It can, however, take up to $10,000 and a year to grow organoids using conventional methods from patient-derived induced pluripotent stem cells. Researchers at Children’s Mercy Kansas City’s Genomic Medicine Center developed a way to do this from about $200 and in two to three weeks. We spoke to Scott Younger, director of disease gene engine...
Feb 27, 2025•24 min
IgA nephropathy is a rare autoimmune kidney disease that can lead to the loss of kidney function. Though a number of treatment options exist today, none address the root cause of the disease and instead seek to manage symptoms, slow progression, or prevent complications. Vera Therapeutics’ experimental fusion protein atacicept, in a phase 2B study, showed the ability to provide long-term kidney function stabilization. We spoke to Marshall Fordyce, founder and CEO of Vera Therapeutics, about IgA ...
Feb 20, 2025•26 min
When Katrina Rice’s son was diagnosed with the rare, hematological disorder sickle cell disease, she got to spend a lot of time understanding how a rare disease affects the daily life of people with a condition and their caregivers. Her son, now 28, has become a participant in clinical trials, and that’s further broadened Rice’s perspective as chief delivery officer of biometrics services at the clinical trial data management and analytics company eClinical Solutions. We spoke to Rice about sick...
Feb 13, 2025•39 min
In 2023, Acadia Pharmaceuticals won approval for Daybue, the first and only treatment for the rare, neurodevelopmental disorder Rett syndrome. Daybue is not a cure and Acadia continues to pursue additional therapies for the condition including an antisense oligonucleotide therapy to upregulate a protein people with Rett syndrome lack. We spoke to Elizabeth Thompson, executive vice president and head of research and development for Acadia, about Rett syndrome, how Daybue has changed the treatment...
Feb 06, 2025•23 min
When Patty Keating had her thyroid removed, she experienced what she described as a “buzzing in her face,” had trouble sleeping, and felt anxious. Her symptoms grew worse and she had trouble climbing stairs. Then, six months later, her heart started racing, and her husband rushed her to the hospital, where tests showed she was having a heart attack. But when doctors performed catheterization to clear a blockage, they found there was none. It was then that she was diagnosed with hypoparathyroidis...
Jan 30, 2025•30 min
Earlier this year iECURE reported that an infant with the rare and deadly liver disease OTC deficiency had a complete response to its experimental gene editing therapy. It is believed to be the time that an infant was treated with an in vivo , liver-directed gene editor. The treatment restored ammonia levels in the child’s blood to normal and the child is off of ammonia scavenger medicines and is eating a normal diet. We spoke to Joe Truitt, CEO of iECURE, about the company’s experimental therap...
Jan 23, 2025•24 min
Healx, which developed an AI platform to repurpose drugs for rare diseases, is among the first generation of companies built on an AI drug discovery engine. The company’s lead experimental therapy, which the U.S. Food and Drug Administration granted Fast Track designation to in October 2024, is in mid-stage development for neurofibromatosis type 1, a rare genetic condition that causes tumors to grow on nerves. A deal at the end of 2024 shows expanded uses for its platform technology as Sanofi en...
Jan 16, 2025•44 min
Primary immunodeficiency disorders include more than 400 conditions, and a growing number of people are being recognized as having them as a result of improved diagnostic tools and greater awareness among physicians. Most treatments for these conditions are plasma-derived therapies sourced from donors. We spoke to Joerg Schuettrumpf, chief scientific innovation officer at Grifols, about the changing landscape for these conditions, the challenges of ensuring a reliable supply of plasma-derived th...
Jan 09, 2025•31 min
In November, Citizen Health unveiled itself with $14.5 million in funding and a partnership with the Chan Zuckerberg Initiative. A reinvention of what began life as Ciitizen, Citizen Health takes a sharp focus on rare disease, a departure from its precursor, which was initially envisioned as a tool for cancer patients to gather all of their health data in a single place. We spoke to Citizen Health Co-Founders Farid Vij and Nasha Fitter about the evolution of Citizen Health, what it will enable, ...
Jan 02, 2025•43 min
Michelle Teng, a techbio entrepreneur, co-founded the H-ABC Foundation after her daughter was diagnosed with the ultra-rare and fatal leukodystrophy. The foundation funded research that identified the causal mutation of the condition and pointed the way to a potential therapy. Teng later joined with Dan Williams to co-found SynaptixBio to advance that work and develop an experimental antisense oligonucleotide therapy to silence the mutated gene underlying a form of the progressive neurological c...
Dec 26, 2024•27 min
Gene therapies that use viral vectors generally are not redosable because once patients are exposed to the virus used to insert the gene, their immune system will become activated against them. Immusoft is using a patient’s own B cell and engineering them to produce needed proteins by transforming them into biofactories without the use of a viral vector. The company’s lead experimental therapy is an autologous B cell therapy engineered to produce the enzyme that people with the rare lysosomal st...
Dec 19, 2024•32 min
