Conference Call Summary, page-300

Question for any one who can answer. If they remove the test results that have been compromised. And are left with a quality sample size of say 600. If results proved for positive for the 600 and met expectations, would the next lot of trials only require a sample size of another 600 or so to meet the required size or would they need another 1200 or so? I really hope they release the results for the good quality tests they were able to get.