“The largest randomized stroke trial proved that Cerebrolysin improves recovery.”

Misleading

This statement leaves out a limit that changes its meaning.

CASTA enrolled 1,070 adults, but its main combined recovery measure showed no significant difference between Cerebrolysin and placebo. A subgroup finding was not the main planned result and does not prove a general recovery benefit.

What this answer is based on

This answer uses a study that assigned people to groups by chance and measured a health outcome.

Limits of this answer

CASTA: adults with acute ischemic stroke studied for up to 90 days. The result applies to its planned primary measure and study population. These limits show which substance, product, people, use, place, and time the answer covers. A different product or situation can have a different answer.

Topic

What a study measured about people's health, symptoms, or ability to function.