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BACKGROUND
Combined ipilimumab and nivolumab induces encouraging response rates in patients with unresectable or metastatic melanoma. However, the approved protocol for dual checkpoint inhibition (3 mg/kg ipilimumab over 90 min and 1 mg/kg nivolumab over 60 min) is time-intensive and several trials have shown that both single agents can be safely administered at faster infusion rates.

AIM
To investigate whether combined checkpoint inhibition with 3 mg/kg ipilimumab and 1 mg/kg nivolumab can be safely administered over 30 min per agent.

PATIENTS AND METHODS
We reviewed the rate of infusion-related reactions (IRRs) in the first 12 months of our single-institution experience using shortened infusion times for combined checkpoint inhibition with ipilimumab and nivolumab.

RESULTS
Between May 24, 2016 and June 10, 2017, a total of 46 melanoma patients received 100 shortened cycles of combined 3 mg/kg ipilimumab and 1 mg/kg nivolumab. One patient (2.2%; 1/46) had a questionable reaction after administration of 1 mg/kg nivolumab over 30 min, but none of the other patients had a bona fide IRR.

CONCLUSIONS
Shortened infusion times for combined ipilimumab and nivolumab treatment are safe, thereby facilitating a more efficient use of outpatient facilities and enhancing patient's convenience.