Rare Diseases

How is a rare disease defined in the United States?

a rare disease is defined by the 1983 Orphan Drug Act as a condition affecting fewer than 200,000 individuals

How is a rare disease defined in the European

Union?

a disease is classified as rare when it affects no more than 5 in 10,000 persons

Approximately how many rare diseases have been identified?

While estimates vary based on diagnostic capabilities and definitions, it is generally considered that there are more than 6,800 to 10,000 identified rare diseases

Approximately what percentage of

rare diseases have a genetic origin?

Approximately 80% of rare diseases are estimated to have a genetic origin

Approximately what percentage of individuals diagnosed with a

rare disease are children?

Approximately 50% of individuals diagnosed with a rare disease are children.

Approximately what percentage of rare diseases have an FDA-approved treatment?

It is estimated that approximately 5% of the nearly 10,000 identified rare diseases have treatments approved by the Food and Drug Administration (FDA).

describe what having a rare disease may mean for patients

difficulty obtaining an

accurate diagnosis, diagnostic delays, misdiagnosis, travel to specialists, lack of information and

resources, limited treatment options, insurance coverage/reimbursement challenges, and social

isolation

What is the "Paradox of Rarity"?

individual rare diseases are statistically uncommon, yet collectively they affect a significant portion of the population, leading to a systemic underestimation of their public health impact and a lack of specialized clinical focus

each _____ disease is individually _______, but

collectively rare diseases affect ______ people.

rare; uncommon; many

What is meant by the phrase "Rare diseases are rare, but rare disease patients are many"?

while any single specific rare condition affects only a small number of individuals, the collective sum of the thousands of distinct rare diseases results in a massive global population of patients who share the common challenges of diagnostic delays, limited medical expertise, and a lack of available treatments

Approximately how many people in the United States have a rare disease?

25 million people

What does the "long tail" concept illustrate about rare diseases?

while individual rare diseases have low prevalence, the collective demand for research and diagnostic solutions for the vast number of these conditions is significant, necessitating integrated technological and institutional efforts to overcome the challenges of their disparate nature

Why did rare disease patients, families, and caregivers begin advocating for legislation in the 1970s?

the lack of commercial interest from pharmaceutical companies in developing treatments for conditions with small patient populations—often referred to as "orphan drugs"—left them without viable therapeutic options or hope for medical advancement

Why did pharmaceutical companies historically have little financial incentive to develop treatments for rare diseases?

high costs of research, development, and regulatory compliance, combined with the small patient populations, made it unlikely that companies could recover their investments through sales.

What is the Orphan Drug Act (ODA)? In what year was the Orphan Drug Act

passed?

federal law enacted in 1983 designed to incentivize the pharmaceutical industry to develop treatments for rare diseases and conditions by providing financial incentives such as research and development tax credits and periods of market exclusivity

Who drafted and sponsored the Orphan Drug Act?

was drafted and sponsored by Representative Henry A. Waxman (D–CA).

What incentives did the Orphan Drug

Act provide to encourage development of treatments for rare diseases?

tax credits for qualified clinical testing, a waiver of prescription drug user fees, and seven years of market exclusivity for approved orphan indications

What organization arose

out of advocacy efforts for the Orphan Drug Act?

The Save Rare Treatments Task Force emerged

What role did the television show Quincy, M.E. play in raising awareness of rare diseases and orphan drug

legislation?

directly influenced the passage of the Orphan Drug Act of 1983 by testifying before the U.S. Congress to secure incentives for pharmaceutical research into rare diseases

Who was Jack Klugman and how was he involved in advocacy for the Orphan Drug Act?

celebrated American actor known for his roles in The Odd Couple and Quincy, M.E., who leveraged his celebrity status to testify before Congress and use his television platform to build public and political momentum for the passage of the Orphan Drug Act of 1982

What effect did the Orphan Drug Act have on the development of treatments for rare diseases?

strikingly successful in stimulating innovation by providing financial incentives such as tax credits, fee waivers, and market exclusivity, which have led to the FDA approval of hundreds of new therapies for rare diseases that otherwise lacked commercial viability

What is the difference between orphan drug designation and FDA approval?

Orphan drug designation is a preliminary regulatory status that provides incentives to facilitate the development of treatments for rare diseases, whereas FDA approval is the final, rigorous scientific authorization required to legally market a drug for public use

What examples of treatments approved

under the Orphan Drug Act were discussed in class?

daratumumab for multiple myeloma, as well as therapies for HIV, growth hormone deficiency, pulmonary arterial hypertension, hemophilia B, amyotrophic lateral sclerosis (ALS), sickle cell disease, and cystic fibrosis

What criticisms have been raised regarding the Orphan

Drug Act?

exploited by manufacturers to secure extended market exclusivity and tax incentives for "blockbuster" drugs that treat common conditions alongside rare diseases, leading to concerns over high drug prices and the potential for excessive monopoly power.

What is NORD?

widely used commercial virtual private network (VPN) service provider that offers encrypted internet connections, privacy protection, and secure access to global server networks for various digital devices.

What are some of NORD's major accomplishments for the rare disease community?

serving as a central clearinghouse for information, administering patient and caregiver assistance programs, supporting critical research grants, and launching the Living Rare Study to collect comprehensive data on the real-life challenges faced by those with rare conditions.

What were the major purposes/outcomes of the Rare Diseases Act?

incentivize the development of pharmaceutical treatments for rare diseases by providing financial and regulatory benefits—such as tax credits, research grants, and market exclusivity—to companies that would otherwise find such drug development commercially unviable due to the small patient populations involved.

In what year was the Rare Diseases Act

passed?

2002

What is the Division of Rare Diseases Research Innovation (DRDRI)?

specialized unit within the National Center for Advancing Translational Sciences. leads and coordinates research programs and collaborative activities aimed at advancing innovative treatments and medical knowledge for individuals living with rare diseases

What is the National Center for

Advancing Translational Sciences (NCATS)?

component of the National Institutes of Health that conducts and supports research to transform the translational process, aiming to develop and disseminate innovative, generalizable solutions that allow new treatments and health interventions to reach patients more efficiently

Describe the Rare Diseases Clinical Research Network (RDCRN) (i.e. how is it structured? What does it do?)

What are its goals?

federally funded, multi-site collaborative program structured into specialized consortia that aims to advance medical research, facilitate clinical trial readiness, and accelerate the development of treatments for rare diseases through patient-centric studies and data sharing

What is the Rare Diseases Registry Program (RaDaR)?

is an educational resource hub developed by the National Center for Advancing Translational Sciences (NCATS) to provide patient advocacy groups with guidance, tools, and best practices for creating and maintaining high-quality, scalable patient registries to support research and therapy development

What are disease registries?

organized systems for the systematic collection, storage, retrieval, analysis, and dissemination of information on individuals who share a particular disease, condition, or exposure

What types of information may be collected through rare disease registries?

demographic details, patient experiences, clinical data from health records, and treatment outcomes

how are rare disease registries used?

collect, store, and analyze clinical and patient-reported data to improve disease understanding, support natural history studies, and facilitate the development of new therapeutic interventions.

What is the Genetic and Rare Diseases Information Center (GARD)?

is a public health resource managed by the National Institutes of Health that provides free, reliable, and accessible information to help individuals navigate the challenges of living with a rare or genetic disease

What types of information does GARD

provide?

provides curated, reliable information regarding rare and genetic diseases, including details on symptoms, causes, and potential treatments

How does GARD make rare disease information more accessible to patients and families?

providing free, reliable, and easy-to-understand resources through its website and a team of dedicated Information Specialists who offer individualized support.

What types of resources can individuals find through GARD?

information on rare diseases, including symptoms, causes, and research resources, through the Genetic and Rare Diseases (GARD) Information Center

Why is raising awareness an important issue for rare diseases?

it facilitates earlier clinical diagnoses, promotes the development of effective treatments, and helps overcome the systemic barriers and social stigmas

What is EURORDIS?

a non-profit alliance of over 1,000 rare disease patient organizations from more than 70 countries that works across borders to improve the lives of people living with rare diseases

What is Rare Disease

Day?

annual global observance held on the last day of February that raises awareness for rare diseases and advocates for health equity in diagnosis and treatment access

Why was February 29 originally selected as the date for Rare Disease Day?

because it is a "rare day" on the calendar, which symbolically reflects the rarity of the diseases the observance was created to highlight

When is Rare Disease Day

observed during non-leap years?

February 28 during non-leap years

How did Rare Disease Day become established in the United States?

to extend the global awareness initiative to the American public

Why is the zebra used as a symbol for rare diseases?

to reclaim the zebra as a symbol of their unique, often overlooked, and complex health journeys.

What is meant by the phrase, "When you hear

hoofbeats, think horses, not zebras"?

advises clinicians to prioritize the most common and likely diagnosis over rare or exotic conditions when evaluating a patient's symptoms

how does the phrase, "When you hear

hoofbeats, think horses, not zebras" relate to those with rare diseases?

leads to significant diagnostic delays and frustration for patients with rare diseases who are initially misdiagnosed or dismissed

What is

the "Show Your Stripes" campaign?

visual graphics consisting of color-coded stripes to represent the long-term rise in Earth's average temperature over the past century to raise awareness about climate change.

Be familiar with the annual Rare Disease Day event held at the NIH.

collaborative, public-facing initiative held near the end of February to raise awareness, share patient stories, and highlight scientific advancements in the research and treatment of rare diseases

Why do rare disease patients often use social media?

find social and informational support, connect with others facing similar diagnoses, and facilitate participation in research and advocacy efforts

How can social media help individuals with rare

diseases?

facilitating global connections for emotional support, enabling access to the latest research, and providing powerful platforms for advocacy and fundraising

How are researchers using social media data to study rare diseases?

recruit participants for clinical studies, conduct observational research through surveys, and perform large-scale data mining of user-generated content to identify patient needs and treatment outcomes