SMC2257
Pembrolizumab as monotherapy or in combination with platinum and fluorouracil chemotherapy, for the first-line treatment of metastatic or unresectable recurrent head and neck squamous cell carcinoma (HNSCC) in adults whose tumours express programmed cell death ligand-1 (PD-L1) with a combined positive score (CPS)≥1. Pembrolizumab is subject to a two-year stopping rule.
Pembrolizumab/Cisplatin/Fluorouracil
Pembrolizumab 200mg IV Day 1
Cisplatin 75-100 mg/m2 IV Day 1
Fluorouracil 3000-4000 mg/m2 IV Day 1 over 4-5 days
Option to replace Fluorouracil with:
Capecitabine 1000mg/m2 BD PO D1-14 (if oral route assessed as appropriate route of administration)
Every 21 days, for up to 6 cycles followed by
Pembrolizumab monotherapy 200mg IV 3 weekly or 400mg IV 6 weekly for up to 2 years
In patients where tumour PD-L1 CPS ≥1
Pembrolizumab/Carboplatin/Fluorouracil
Pembrolizumab 200mg IV Day 1
Carboplatin AUC 5 IV Day 1
Fluorouracil 3000-4000 mg/m2 IV Day 1 over 4-5 days
Option to replace Fluorouracil with:
Capecitabine 1000mg/m2 BD PO D1-14 (if oral route assessed as appropriate route of administration)
Every 21 days for up to 6 cycles followed by
Pembrolizumab monotherapy 200mg IV 3 weekly or 400mg IV 6 weekly for up to 2 years
In patients whose tumour express PD-L1 with a CPS ≥1
Refer to regional or local protocols for carboplatin prescribing advice
Pembrolizumab Monotherapy
Pembrolizumab 200mg IV every 3 weeks or
400mg IV every 6 weeks,
for up to 2 years
In patients whose tumour express PD-L1 with a CPS ≥1
Cisplatin/Fluorouracil
Cisplatin 75-100mg/m2 IV Day 1
5FU 3000-4000mg/m2 IV Day 1 Day 1 over 4-5 days
Option to replace Fluorouracil with:
Capecitabine 1000mg/m2 BD PO D1-14 (if oral route assessed as appropriate route of administration)
Every 21 days for 6 cycles
Carboplatin/Fluorouracil
Carboplatin AUC 5 IV Day 1
5FU 3000-4000mg/m2 IV Day 1 over 4 to 5 days
Option to replace Fluorouracil with:
Capecitabine 1000mg/m2 BD PO D1-14 (if oral route assessed as appropriate route of administration)
Every 21 days for 6 cycles
Refer to regional or local protocols for carboplatin prescribing adviceCarboplatin/Paclitaxel
Carboplatin AUC 5 IV D1
Paclitaxel 175mg/m2 IV D1
Every 21 days for 6 cycles
Refer to regional or local protocols for carboplatin prescribing advice