We also found that PFS (P = 0.0016) for patients on PLD + durva negatively correlated with LRP1B deletions. Patients with MYC amplifications had a lower response (P = 0.0005) and shorter PFS (P = 0.006, HR = 2.889) on the PLD + durva combination..MYC amplification may be central in driving resistance to the combination and has not been previously linked to PLD efficacy.