Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_76644 ( "Target/Approach" text, "Candidate Name" text, "Trial Phase" text, "Trial Start Date" text, "Expected End Date" text )

### Question ###
What is Candidate Name, when Target/Approach is 'vaccine to amyloid-beta'?

### Accurate SQL ###

SELECT "Candidate Name" FROM table_76644 WHERE "Target/Approach" = 'vaccine to amyloid-beta'