AE	adverse event
ART/HAART	antiretroviral therapy/highly active antiretroviral therapy
AUC0- t	area under the plasma or serum concentration-time curve from time = 0 to the last measurable concentration at time = t
BICR	blinded independent central radiographic review
CI	confidence interval
C max	maximum observed plasma or serum concentration
C min	minimum observed plasma or serum concentration
CR	complete response
DCR	disease control rate
DOR	duration of response
ECOG	Eastern Cooperative Oncology Group
HIV	human immunodeficiency virus
HNSCC	head and neck squamous cell carcinoma
HPV	human papilloma virus
HR	hazard ratio
HR-PRO	health-related patient-reported outcomes
ICB	immune checkpoint blockade
MedDRA	Medical Dictionary for Regulatory Activities
ORR	overall response rate
OS	overall survival
PD	progressive disease
PD-1	programmed death 1
PD-(L)1	programmed cell death (ligand) 1
PFS	progression-free survival
PK	pharmacokinetics
PR	partial response
RECIST	Response Evaluation Criteria in Solid Tumors
RT	radiotherapy
SCAC	squamous carcinoma of the anal canal
SOC	standard of care
TEAE	treatment-emergent adverse event
t max	time to maximum concentration