Sustained remission is defined as a remission lasting more than how long?

• A. More than 12 months
• B. More than 3 months
• C. More than 24 months
• D. More than 6 months

Answer: (A)

Durable remission means the disease remains in remission for a substantial period after the initial improvement. The typical threshold used to label remission as sustained is more than 12 months. This duration is long enough to distinguish a lasting, stable response from a temporary improvement, whereas shorter spans like 3 or 6 months can still be followed by relapse. A period of 24 months is stricter and may be used in some contexts, but the common benchmark for sustained remission is over 12 months.