Table 2 Treatment-related adverse events (all-patients-as-treated population; N = 192)

From: Efficacy and safety of pembrolizumab in recurrent/metastatic head and neck squamous cell carcinoma: pooled analyses after long-term follow-up in KEYNOTE-012

Treatment-related adverse event

Any grade occurring in ≥2% of patients (No. (%))

Any

123 (64)

  Fatigue

42 (22)

  Hypothyroidism

19 (10)

  Rash

18 (9)

  Pruritus

16 (8)

  Appetite decrease

16 (8)

  Pyrexia

12 (6)

  Nausea

11 (6)

  Arthralgia

10 (5)

  Dry skin

9 (5)

  Weight decrease

9 (5)

  AST level increase

6 (3)

  Facial swelling

6 (3)

  Anaemia

8 (4)

  ALT level increase

5 (3)

  Myalgia

5 (3)

  Diarrhoea

5 (3)

  Pneumonitis

5 (3)

  Stomatitis

4 (2)

  Vomiting

4 (2)

  Chills

4 (2)

  Blood TSH level increase

4 (2)

  Hyponatremia

4 (2)

  Maculopapular rash

4 (2)

 

Grade 3/4 occurring in ≥2 patients (No. (%))

Any

24 (13)

 ALT level increase

3 (2)

 AST level increase

3 (2)

 Hypothyroidism

2 (1)

 Fatigue

2 (1)

 Appetite decrease

2 (1)

 Hyponatremia

2 (1)

 Pneumonitis

2 (1)

 Facial swelling

2(1)

 

Rare events of interest (No. (%) [grade])

Immune-mediated

  Adrenal insufficiency

2 (1) [1, 2]

  Colitis

1 (1) [3]

  Diabetic ketoacidosis

1 (1) [4]

  Type 1 diabetes mellitus

1 (1) [3]

Cardiac

  Atrial fibrillation

1 (1) [3]

  Congestive heart failure

1 (1) [3]

  1. ALT alanine aminotransferase, AST aspartate aminotransferase, TSH thyroid stimulating hormone