On Rare

Severe seizures, nonstop crying, and an exaggerated startle reflex marked the beginning of Elliott’s journey with molybdenum cofactor deficiency type A (MOCD type A), an ultra-rare inherited metabolic disorder that can cause devastating neurological damage shortly after birth. After initially being told that Elliott would likely not survive to school age, his family was offered access to an experi...

Seizures, incorrect diagnoses, and years of unanswered questions shaped Arielle’s journey with autosomal dominant hypocalcemia type 1 (ADH1). ADH1 is a rare genetic condition in which the body is unable to accurately sense blood calcium levels, leading to hypoparathyroidism. Although she grew up aware that her calcium levels were low, she did not receive a formal diagnosis until age 16, when a sev...

In this episode of On Rare: Innovators, hosts David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Senior Director of Patient Advocacy at BridgeBio, speak with Kat Bryant Knudson, Founder and CEO of the Speak Foundation and a leader in the limb-girdle muscular dystrophy (LGMD) community. Diagnosed as a child after experiencing early symptoms of muscle breakdown, Kat spent years...

In our 2025 year-in-review episode, On Rare reflects on a year filled with meaningful conversations and powerful storytelling. Joined by David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Senior Director of Patient Advocacy at BridgeBio, we revisit moments that moved us, challenged us, and reaffirmed the importance of listening to the voices of rare disease communities. This y...

En el episodio inaugural de On Rare: Innovadores, una nueva serie derivada de On Rare de BridgeBio, los presentadores David Rintell, director de abogacía de pacientes de BridgeBio, y Mandy Rohrig, directora sénior de abogacía de pacientes de BridgeBio, presentan a los oyentes a las personas que están transformando la comunidad de enfermedades raras a través de la defensa de los derechos, la compas...

In this episode of On Rare Innovators, Mandy Rohrig, Senior Director of Patient Advocacy at BridgeBio, and David Rintell, Head of Patient Advocacy at BridgeBio, talk with Nasha Fitter, a parent, entrepreneur, and rare disease leader whose determination was reshaped the day her daughter Amara was diagnosed with FOXG1 syndrome. Drawing on a career defined by bold pivots and purpose-driven problem so...

Greg’s journey with LMNA cardiomyopathy, a rare inherited heart condition, began in high school when he experienced sudden episodes of rapid, irregular heartbeats during track practice. The cause remained a mystery for years, leading to misdiagnoses and untreated disease progression. During that time, Greg faced life-threatening arrhythmias and required several implanted devices before finally rec...

In the inaugural episode of On Rare: Innovators, a new sister series of On Rare from BridgeBio, hosts David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Senior Director of Patient Advocacy at BridgeBio, introduce listeners to the changemakers reshaping the rare disease community through advocacy, compassion, and action. The series begins in Gijón, Spain with Carmen Alonso, fou...

Before she turned eight, Cerys had already faced two diagnoses, only one of which she truly understood. While being diagnosed with celiac disease as a child, unusually high CK levels in her blood pointed to a deeper issue: limb-girdle muscular dystrophy type 2I/R9 (LGMD2I/R9). In this episode of On Rare, David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Senior Director of Pat...

Seizures, sleepless nights, and mysterious white patches on his skin marked the beginning of Daniel’s journey with Tuberous Sclerosis Complex (TSC). Diagnosed at age 6, Daniel faced a childhood filled with MRIs, EEGs, and specialist visits, often requiring cross-country travel for coordinated care. In this moving episode of On Rare, David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy R...

Katie and Allie’s story began in childhood with unexplained clumsiness and subtle symptoms that intensified over time. After years of searching for answers, Katie was diagnosed with late-onset Tay-Sachs (LOTS), a rare neurodegenerative disease. Further testing confirmed her twin sister Allie’s diagnosis as well. Despite facing daily challenges ranging from mobility issues to emotional strain, the...

Philip’s journey with ATTR began with unexplained weight loss and gastrointestinal issues that puzzled doctors for years. Despite seeing multiple specialists, his condition remained undiagnosed until a physician at Johns Hopkins finally connected the dots, confirming ATTR. By then, Philip had lost 60 pounds and was on the brink of survival. In today’s episode of On Rare, David Rintell, Head of Pat...

When Julien was just 6 weeks old, Kady knew something wasn’t right. Despite more than 16 doctors insisting Julien was fine, Kady trusted her instincts and fought for answers—refusing to leave the hospital until the right tests were done. That persistence led to a life-changing diagnosis: a rare genetic form of hypoparathyroidism. Julien’s specific mutation is so unique that he is the only known ca...

In our final episode of 2024, On Rare looks back at highlights from the rewarding and rare conversations with our exceptional guests and David Rintell, Global Head of Patient Advocacy at BridgeBio and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy. We listened, we learned, we laughed, and we cried. We are deeply grateful to all of our guests. Join us for a look back at 2024 a...

Charles, a recently retired cardiologist of 53 years, speaks with David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy, about how his unexpected early diagnosis of ATTR-CM likely impacted the trajectory of his disease. Dr. Jonathan Fox, President and Chief Medical Officer of cardiorenal programs at BridgeBio, explains how AT...

Erin joins David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy, to share her experience living with hypochondroplasia. Erin also has two sons living with hypochondroplasia and one son of average height. Raised in a loving and supportive family with a can-do attitude, her father told her that she may be of short stature but...

In today’s episode of On Rare, David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy, speak with Misty about her experience living with limb-girdle muscular dystrophy, type2I/R9 (LGMD2I/R9). Misty details the suffering she experienced in her childhood from bullying for the symptoms she now realizes are connected to LGMD2I/R9...

In this emotional episode of On Rare, David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy, speak with Dawn, the single parent of Vayle, a 5-year-old girl living with Canavan Disease. Dawn shares how she came to realize that Vayle was not meeting developmental milestones at 3-4 months old. Despite initial reassurance from he...

Sean joins David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy to share his journey with ATTR. In this episode, Sean describes his initial symptoms, which included carpal tunnel syndrome and numbness in his foot and ankle, the misdiagnosis he experienced, and his eventual diagnosis at the Cleveland Clinic in Abu Dhabi. Whil...

Alex joins David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy, to speak about her son, Hudson. Before Hudson’s birth, Alex and her husband learned that Hudson would be born with hypochondroplasia. A genetic counselor helped her to understand the diagnosis. Although Alex is a medical professional, she had never heard of thi...

In part two, Eric continues talking about his experience living with Transthyretin Amyloidosis (ATTR) with David Rintell, Head of Patient Advocacy at BridgeBio, and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy. Eric recalls the surprise he experienced when a routine doctor’s visit led to him, within hours, to undergoing a heart transplant. Though the surgery was successful,...

Eric joins David Rintell, Head of Patient Advocacy at BridgeBio and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy in a two-part conversation to talk about his experience of living with Transthyretin Amyloidosis (ATTR). Eric was an extremely active person who enjoyed sports, riding horses and working on his 20-acre property when he began to have issues which he now attributes...

Join David Rintell, Head of Patient Advocacy at BridgeBio and Mandy Rohrig, Director of Patient Advocacy at BridgeBio Gene Therapy as they recognize Rare Disease Day, February 29, 2024, by speaking with siblings of people living with rare conditions. It is often said that a rare condition or disease impacts the entire family, and this is particularly true for rare siblings. Due to the extra care n...

Becoming a parent to a child with a rare disease was extremely isolating for Effie. In the second episode of our two-part series with Effie, she shares that finding the world of podcasts, documenting similar experiences to her own, was magical. Effie explains how important it is to find others who "get it" and how this feeling of belonging changed everything for her. As Effie explains, “In this co...