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Novel drug for kidney cancers/VHL patients

Prof. Eric Jonasch (University of Texas MD Anderson Cancer Center) presented the results of a phase 2 trial of MK-6482, the small molecule inhibitor of hypoxia-inducible factor (HIF)-2a in von Hippel-Lindau disease (VHL)-associated renal cell carcinoma (RCC) [1].

The phase 2 trial enrolled 61 patients with VHL and renal masses. Patients received MK-6482 orally once daily until disease progression, unacceptable toxicity, or investigator's or patient's decision to withdraw. Tumour size was evaluated at screening and every 12 weeks thereafter. No patients had progressive disease on treatment and 58 patients (95.1%) remain on treatment.

The trial met its primary endpoint and showed an objective response rate in RCC tumours per RECIST by independent review. The confirmed response rate was 27.9%. When also considering the 8 patients with unconfirmed response, the objective response rate was 41....

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