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_76647 ( "Target/Approach" text, "Candidate Name" text, "Trial Phase" text, "Trial Start Date" text, "Expected End Date" text )

### Question ###
What is Trial Start Date, when Candidate Name is PBT2?

### Accurate SQL ###

SELECT "Trial Start Date" FROM table_76647 WHERE "Candidate Name" = 'pbt2'