NALBANDIAN, Circuit Judge. In this multi-district litigation, plaintiffs claim that saxagliptin, a diabetes drug, caused their heart failure. During expert discovery, plaintiffs presented a single expert to show the drug can cause heart failure. After a Daubert hearing and expert motions, the district court excluded the expert, finding that methodological flaws rendered his testimony unreliable under Federal Rule of Evidence 702. The district court then granted summary judgment for defendants, rejecting plaintiffs’ claim that other evidence created a genuine issue of material fact as well as their request for ninety days to find a replacement expert.

On appeal, plaintiffs challenge the district court’s exclusion of their expert, its grant of summary judgment, and its refusal to give plaintiffs more time to find another expert witness. Because we conclude all three claims lack merit, we AFFIRM.