Table 2 Adverse events occurring in ganetespib and control arms; Grade 3/4 observed in ≥2% of participants or Grade 1/2 ≥ 20% of participants; dose reductions and early discontinuations (number, % of participants in arm/treatment phase).

From: Safety and efficacy of HSP90 inhibitor ganetespib for neoadjuvant treatment of stage II/III breast cancer

 

Ganetespib (n = 93)

Control (n = 140)

Adverse event

Grade 1–2

Grade 3–4

Grade 1–2

Grade 3–4

Neutrophil count (decrease)

6 (6.5%)

20 (21.5%)

9 (6.4%)

14 (10.0%)

White blood cell count (decrease)

5 (5.4%)

9 (9.7%)

7 (5.0%)

7 (5.0%)

Diarrhea

67 (72.0%)

8 (8.6%)

56 (40.0%)

3 (2.1%)

Peripheral sensory neuropathy

59 (63.4%)

8 (8.6%)

90 (64.3%)

2 (1.4%)

Anemia

22 (23.7%)

5 (5.4%)

19 (13.6%)

9 (6.4%)

Alanine aminotransferase (increase)

7 (7.5%)

5 (5.4%)

11 (7.9%)

3 (2.1%)

Febrile neutropenia

0 (0.0%)

3 (3.2%)

0 (0.0%)

12 (8.6%)

Stomatitis

33 (35.5%)

3 (3.2%)

43 (30.7%)

3 (2.1%)

Fatigue

77 (82.8%)

3 (3.2%)

122 (87.1%)

1 (0.7%)

Headache

43 (46.2%)

3 (3.2%)

61 (43.6%)

1 (0.7%)

Neutropenia

2 (2.2%)

2 (2.2%)

1 (0.7%)

2 (1.4%)

Vomiting

28 (30.1%)

2 (2.2%)

26 (18.6%)

0 (0.0%)

Arthralgia

33 (35.5%)

2 (2.2%)

35 (25.0%)

1 (0.7%)

Pulmonary embolism

0 (0.0%)

2 (2.2%)

0 (0.0%)

0 (0.0%)

Embolism

2 (2.2%)

2 (2.2%)

1 (0.7%)

0 (0.0%)

Nausea

72 (77.4%)

1 (1.1%)

106 (75.7%)

0 (0.0%)

Pain

19 (20.4%)

1 (1.1%)

18 (12.9%)

1 (0.7%)

Lymphocyte count (decrease)

3 (3.2%)

1 (1.1%)

3 (2.1%)

3 (2.1%)

Anorexia

30 (32.3%)

1 (1.1%)

30 (21.4%)

0 (0.0%)

Myalgia

25 (26.9%)

1 (1.1%)

36 (25.7%)

1 (0.7%)

Anxiety

10 (10.8%)

1 (1.1%)

36 (25.7%)

0 (0.0%)

Cough

22 (23.7%)

1 (1.1%)

35 (25.0%)

0 (0.0%)

Hypokalaemia

3 (3.2%)

0 (0.0%)

10 (7.1%)

4 (2.9%)

Bone pain

18 (19.4%)

0 (0.0%)

41 (29.3%)

3 (2.1%)

Pruritus

12 (12.9%)

0 (0.0%)

17 (12.1%)

1 (0.7%)

Alopecia

66 (71.0%)

0 (0.0%)

106 (75.7%)

0 (0.0%)

Constipation

53 (57.0%)

0 (0.0%)

74 (52.9%)

0 (0.0%)

Insomnia

35 (37.6%)

0 (0.0%)

55 (39.3%)

0 (0.0%)

Hot flush

32 (34.4%)

0 (0.0%)

57 (40.7%)

0 (0.0%)

Vision blurred

25 (26.9%)

0 (0.0%)

15 (10.7%)

0 (0.0%)

Dysgeusia

24 (25.8%)

0 (0.0%)

30 (21.4%)

0 (0.0%)

Dermatitis acneiform

24 (25.8%)

0 (0.0%)

28 (20.0%)

0 (0.0%)

Dyspnea

23 (24.7%)

0 (0.0%)

30 (21.4%)

0 (0.0%)

Nail discolouration

22 (23.7%)

0 (0.0%)

30 (21.4%)

0 (0.0%)

Rash maculo-papular

20 (21.5%)

0 (0.0%)

29 (20.7%)

0 (0.0%)

Gastrooesophageal reflux disease

18 (19.4%)

0 (0.0%)

30 (21.4%)

0 (0.0%)

Dose reductions, n (%)

16 (17.2%)

11 (7.9%)

Early discontinuation, n (%)

37 (39.8%)

33 (23.6%)

 Toxicity

15 (16.2%)

10 (7.1%)

 Progression

12 (12.9%)

10 (7.1%)

 Other

10 (10.8%)

13 (9.3%)

Time from treatment consent to surgery (days)

Median (range)

165 (71–250)

165 (100–289)

Follow-up time (years)

Median (range)

3.4 (0.6–4.2)

4.1 (0.5–6.5)