Which population threshold defines a rare disease for orphan drug status?

Which population threshold defines a rare disease for orphan drug status?

• A. Fewer than 200,000 people in the US
• B. Fewer than 50,000 people in the US
• C. Fewer than 1,000 people in the US
• D. Fewer than 5,000,000 people in the US

Answer: (A)

Orphan drug status hinges on how common the disease is in the United States. A disease is considered rare if it affects not more than 200,000 people in the U.S. This threshold is set to encourage development of treatments for rare conditions by offering incentives. If a disease affects more than 200,000 people, designation can still be possible only if there’s no reasonable expectation to recover the costs of development from U.S. sales. The other population figures listed do not define the rarity threshold.

Orphan drug status hinges on how common the disease is in the United States. A disease is considered rare if it affects not more than 200,000 people in the U.S. This threshold is set to encourage development of treatments for rare conditions by offering incentives. If a disease affects more than 200,000 people, designation can still be possible only if there’s no reasonable expectation to recover the costs of development from U.S. sales. The other population figures listed do not define the rarity threshold.