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Table 4 Adverse events observed in the safety population

From: Treatment of knee osteoarthritis with a new formulation of a fixed-dose combination of glucosamine sulfate and bovine chondroitin: a multicenter, randomized, single-blind, non-inferiority clinical trial

Adverse events

GS/CS (N = 314)

RP (N = 312)

Patients reporting at least one AE, n (%)

195 (62.1)

202 (64.7)

Total AEs reported, n

504

572

Incidence of AEs considered related to the treatment, n (%)

67 (21.3)

85 (27.2)

Incidence of serious AEs, n (%)

3 (0.96)

2 (0.6)

Total of serious AEs, n

5

2

Incidence of AEs leading to treatment discontinuation, n (%)

9 (2.9)

8 (2.6)

AEs with incidence ≥ 5%

Arthralgia, n (%)

15 (4.8)

19 (6.1)

Myalgia, n (%)

10 (3.2)

18 (5.8)

Back pain, n (%)

30 (9.6)

27 (8.7)

Pain in the extremity, n (%)

20 (6.4)

23 (7.4)

Impaired glucose tolerance, n (%)

12 (3.8)

20 (6.4)

Headache, n (%)

45 (14.3)

49 (15.7)

Upper respiratory tract infection, n (%)

24 (7.6)

21 (6.7)

Nasopharyngitis, n (%)

13 (4.1)

19 (6.1)

Flu, n (%)

13 (4.1)

21 (6.7)

  1. P < 0.05 between groups for all descriptions. AE(s): adverse event(s); GS/CS: glucosamine sulfate/ chondroitin sulfate; n (%): number and percentage of patients with at least one AE reported in relation to the total number of patients in the safety population; RP: reference product