Introduction
Rare diseases, despite their low prevalence, affect millions of people worldwide. According to the European Union, a disease is considered rare when it affects fewer than one in 2,000 people. These diseases, of which more than 7,000 have been identified to date, are often chronic, progressive, and life-threatening.
However, due to the dispersion of patients, lack of specialized knowledge, and lack of effective treatments, this group of patients faces numerous challenges, which we address in this article.
Main characteristics of rare diseases
- Low prevalence: Often occurs in less than 0.05% of the population.
- Genetic origin: More than 80% of rare diseases have a hereditary origin.
- Progression: Many of these diseases get worse over time.
- Involvement of multiple body systems: Some rare diseases affect multiple organs or systems at the same time.
- Incidence at a young age: A high percentage of rare patients are children.
Challenges in diagnosing rare diseases
- Delay in diagnosis
Many patients fail to receive a correct diagnosis years after the initial symptoms appear.
The average delay in diagnosis in some countries is between 5 and 8 years.
- Lack of knowledgeable doctors
In many cases, general practitioners or even specialists are not sufficiently familiar with the symptoms of rare diseases.
- Similarities with common diseases
Symptoms of rare diseases are often confused with other common illnesses, such as muscle weakness, fatigue, or digestive problems.
- Lack of specific diagnostic tests
In many cases, accurate and accessible diagnostic tests for rare diseases are either unavailable or very expensive.
Treatment challenges for rare patients
- Lack of effective drugs (Orphan Drugs)
Rare disease drugs are often not produced by pharmaceutical companies because they are not economically profitable.
- Very high price
Existing drugs for some rare diseases are very expensive and are not covered by insurance.
- Difficulty of access
In developing countries, patients may not have access to specialized treatment centers or rare medicines.
- Psychological and social burden
Isolation, anxiety, financial difficulties, and lack of social support can negatively impact the quality of life of rare disease patients.
The role of technology and innovation in improving the situation
- Personalized Medicine: Treatments that are designed based on each patient’s genome and individual characteristics.
- Advanced genetic sequencing: Helps in faster and more accurate diagnosis.
- Artificial Intelligence: Useful in screening data and finding hidden patterns in disease symptoms.
- Online platforms: creating support networks, patient groups, and facilitating access to medical information.
Global actions in support of rare patients
- Rare Disease Day: It is held on the last day of February every year to raise public awareness.
- Support platforms: such as Orphanet and Rare Diseases International
- Orphan Drug Act: Tax incentives, research funding, and fast-track approvals for the development of specific drugs for rare patients.
The role of pharmaceutical companies
- Investing in genetic and molecular research
- Government-backed orphan drug production
- Cooperation with patient associations and specialized medical centers
- Providing scientific information to doctors and patients
Conclusion
بیماریهای نادر گرچه بهطور جداگانه شیوع کمی دارند، اما در مجموع جامعهای بزرگ را تشکیل میدهند که نیازمند توجه ویژهاند. چالشهای فراوان در زمینه تشخیص، درمان، دسترسی و آگاهی، نیازمند همکاری چندجانبه میان دولتها، شرکتهای دارویی، پزشکان و جامعه است.
Advances in technology, personalized medicine, and physician education could bring a brighter future for these patients.
