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. 2021 Jul 7;12:645563. doi: 10.3389/fendo.2021.645563

Table 2.

Adverse effects and safety risks in phase 3 trials (1032).

Treatment arms Incidence of AE, n (%) % of patients with AE leading to trial product discontinuation
Any Severe or confirmed symptomatic hypoglycemic episode* Gastrointestinal Pancreas Gallbladder Thyroid Diabetic retinopathy Acute kidney Injury Any AE, n(%) Gastrointestinal, %
Nausea Vomiting Diarrhea Pancreatitis Pancreatic cancer
PIONEER 1
Oral semaglutide 3 mg 101 (57.7) 5 (2.9) 14 (8.0) 5 (2.9) 15 (8.6) 0 NR 0 1 (0.6%) 0 4 (2.3) 75
Oral semaglutide 7 mg 93 (53.1) 2 (1.1) 9 (5.1) 8 (4.6) 9 (5.1) 0 NR 0 6 (3.4%) 0 7 (4.0) 57
Oral semaglutide 14 mg 99 (56.6) 1 (0.6) 28 (16.0) 12 (6.9) 9 (5.1) 0 NR 0 2 (1.1%) 1 (0.6) 13 (7.4) 69
Placebo 99 (55.6) 1 (0.6) 10 (5.6) 4 (2.2) 4 (2.2) 0 NR 0 3 (1.7%) 1 (0.6) 4 (2.2) 25
PIONEER 2
Oral semaglutide 14 mg 289 (70.5) 7 (1.7) 81 (19.8) 30 (7.3) 38 (9.3) 1 (0.2) 0 NR 0 14 (3.4) 2 (0.5) 44 (10.7) 75
Empagliflozin 25 mg 283 (69.2) 8 (2.0) 10 (2.4) 7 (1.7) 13 (3.2) 1 (0.2) 0 NR 0 5 (1.2%) 1 (0.2) 18 (4.4) 17
PIONEER 3
Oral semaglutide 3 mg 370 (79.4) 23 (4.9) 34 (7.3) 13 (2.8) 45 (9.7) 1 (0.2) 0 NR 0 27 (5.8) 3 (0.6) 26 (5.6) 42
Oral semaglutide 7 mg 363 (78.2) 24 (5.2) 62 (13.4) 28 (6.0) 53 (11.4) 1 (0.2) 0 NR 0 24 (5.2) 2 (0.4) 27 (5.8) 56
Oral semaglutide 14 mg 370 (79.6) 36 (7.7) 70 (15.1) 42 (9.0) 57 (12.3) 1 (0.2) 1 (0.2) NR 0 16 (3.4) 5 (1.1) 54 (11.6) 59
Sitagliptin 100 mg 388 (83.3) 39 (8.4) 32 (6.9) 19 (4.1) 37 (7.9) 1 (0.2) 1 (0.2) NR 0 27 (5.8) 3 (0.6) 24 (5.2) 50
PIONEER 4
Oral semaglutide 14 mg 229 (80) 2 (1) 56 (20) 25 (9) 43 (15) 0 0 NR 1 (0.4) 8 (3) 0 31 (11) 71
Liraglutide 1.8 mg (s.c.) 211 (74) 7 (2) 51 (18) 13 (5) 31 (11) 1 (0.4) 1 (0.4) NR 1 (0.4) 4 (1) 1 (0.4) 26 (9) 65
Placebo 95 (67) 3 (2) 5 (4) 3 (2) 11 (8) 1 (0.7) 0 NR 0 2 (1) 1 5 (4) 60
PIONEER 5
Oral semaglutide 14 mg 122 (75) 9 (6) 31 (19) 19 (12) 17 (10) 0 0 NR 0 5 (3) 3 (1.8) 24 (15) 79
Placebo 109 (68) 3 (2) 12 (7) 6 (4) 6 (4) 0 0 NR 0 2 (1) 1 (0.6) 8 (5) 38
PIONEER 6
Oral semaglutide 14 mg NR NR NR NR NR 1 (0.1) 0 NR 2 (0.1) 93 (5.8) 32 (2.0) 184 (11.6) 59
Placebo NR NR NR NR NR 3 (0.2) 0 NR 0 76 (4.8) 37 (2.3) 104 (6.5) 25
PIONEER 7
Oral semaglutide (flexible 3, 7 or 14 mg) 197 (78) 14 (5.5) 53 (21) 14 (6) 22 (9) 0 0 NR 0 6 (2.4) 1 (0.4) 22 (9) 64
Sitagliptin 100 mg 172 (69) 14 (5.6) 6 (2) 3 (1) 8 (3) 0 0 NR 0 6 (2.4) 0 8 (3) 25
PIONEER 8
Oral semaglutide 3 mg 137 (74.5) 52 (28.3) 21 (11.4) 11 (6.0) 16 (8.7) 0 0 NR 0 7 (3.8) 2 (1.1) 13 (7.1) 69
Oral semaglutide 7 mg 142 (78.5) 47 (26.0) 30 (16.6) 14 (7.7) 22 (12.2) 0 0 NR 0 8 (4.4) 1 (0.6) 16 (8.8) 75
Oral semaglutide 14 mg 151 (83.4) 48 (26.5) 42 (23.2) 18 (9.9) 27 (14.9) 0 0 NR 0 9 (5.0) 0 24 (13.3) 79
Placebo 139 (75.5) 54 (29.3) 13 (7.1) 7 (3.8) 11 (6.0) 0 0 NR 0 8 (4.3) 0 5 (2.7) 20
PIONEER 9
Oral semaglutide 3 mg 37 (76) 0 2 (4) NR 4 (8) 0 0 NR 0 0 0 1 (2) 100
Oral semaglutide 7 mg 37 (76) 0 5 (10) NR 1 (2) 0 0 NR 1 1 (2.0) 0 1 (2) 100
Oral semaglutide 14 mg 34 (71) 0 4 (8) NR 3 (6) 0 0 NR 0 1 (2.1) 0 2 (4) 100
Liraglutide 0.9 mg (s.c.) 32 (67) 2 (4.2) 0 NR 2 (4) 0 0 NR 0 0 0 0 0
Placebo 39 (80) 0 1 (2) NR 1 (2) 0 0 NR 0 2 (4.1) 0 0 0
PIONEER 10
Oral semaglutide 3 mg 101 (77) 3 (2) 7 (5) 3 (2) 2 (2) 0 0 2 (2) 0 9 (7) 0 4 (3) 50
Oral semaglutide 7 mg 106 (80) 3 (2) 11 (8) 6 (5) 2 (2) 0 0 1 (1) 0 12 (9) 0 8 (6) 50
Oral semaglutide 14 mg 111 (85) 4 (3) 12 (9) 9 (7) 10 (8) 0 0 0 0 7 (5) 0 8 (6) 63
Dulaglutide 0.75 mg (s.c.) 53 (82) 0 6 (9) 1 (2) 4 (6) 0 0 1 (2) 0 3 (5) 0 2 (3) 50
SUSTAIN 1
S.c. semaglutide 0.5 mg 82 (64) 0 26 (20) 5 (4) 16 (13) 0 0 3 (2) 0 NR 0 8 (6) 63
S.c. semaglutide 1 mg 73 (56) 0 31 (24) 9 (7) 14 (11) 0 0 1 (<1) 0 NR 0 7 (5) 57
Placebo 69 (53) 3 (2) 10 (8) 2 (2) 3 (2) 0 0 0 0 NR 0 3 (2) 33
SUSTAIN 2
S.c. semaglutide 0.5 mg 306 (75) 7 (2) 73 (18) 33 (8) 54 (13) 3 (1%) NR 1 (<1) 0 1 (<1) NR 33 (8) 82
S.c. semaglutide 1 mg 292 (71) 2 (<1) 72 (18) 41 (10) 53 (13) 1 (<1) NR 7 (2) 1 0 NR 39 (10) 79
Sitagliptin 100 292 (72) 5 (1) 30 (7) 11 (3) 29 (7) 0 NR 6 (1) 0 3 (1) NR 12 (3) 25
SUSTAIN 3
S.c. semaglutide 1 mg 303 (75) 33 (8.2) 90 (22.3) 29 (7.2) 46 (11.4) 2 (<1) NR 6 (1%) NR NR NR 38 (9.4) NR
Exenatide ER 2.0 mg 309 (76.3) 33 (8.1) 48 (11.9) 25 (6.2) 34 (8.4) 3 (<1) NR 2 (<1) NR NR NR 29 (7.2) NR
SUSTAIN 4
S.c. semaglutide 0.5 mg 253 (70) 16 (4) 77 (21) 24 (7) 59 (16) 2 (1) 1 (<1) 1 (<1) NR 1 (<1) NR 20 (6) 55
S.c. semaglutide 1 mg 264 (73) 20 (6) 80 (22) 37 (10) 69 (19) 0 0 2 (1) NR 0 NR 27 (8) 70
Insulin glargine 235 (65) 38 (11) 13 (4) 11 (3) 16 (4) 0 0 0 NR 1 (<1) NR 4 (1) 0
SUSTAIN 5
S.c. semaglutide 0.5 mg 91 (68.9) 11 (8.3) 15 (11.4) 8 (6.1) 6 (4.5) 0 0 3 (2.3) 0 (3.0) NR 6 (4.5) NR
S.c. semaglutide 1 mg 84 (64.1) 14 (10.7) 22 (16.8) 15 (11.5) 9 (6.9) 0 0 1 (0.8) 0 (0.8) NR 8 (6.1) NR
Placebo 77 (57.9) 7 (5.3) 6 (4.5) 4 (3.0) 2 (1.5) 0 0 0 0 0 NR 1 (0.8) NR
SUSTAIN 6
S.c. semaglutide 0.5 mg 740 (89.6) 191 (23.1) 143 (17.3) 14 (1.7) 15 (1.8) 6 (0.7) 0 25 (3) 0 42 (5.1) 95 (11.5) 49
S.c. semaglutide 1 mg 732 (89.1) 178 (21.7) 180 (21.9) 23 (2.8) 19 (2.3) 3 (0.4) 1 (0.1) 17 (2.1) 0 50 (3.0) 23 (2.8) 119 (14.5) 65
Placebo 1484 (90) 350 (21.2) 129 (7.8) 5 (0.3) 7 (0.4) 12 (0.7) 4 (0.2) 39 (2.3) 0 29 (1.8) 34 (4.1) 110 (6.7) 16
SUSTAIN 7
S.c. semaglutide 0.5 mg 204 (68) 2 (1) 68 (23) 31 (10) 43 (14) 0 0 2 (1) 1 (<1) 2 (1) NR 24 (8) 67
S.c. semaglutide 1 mg 207 (69) 5 (2) 63 (21) 31 (10) 41 (14) 0 0 4 (1) 0 2 (1) NR 29 (10) 62
Dulaglutide 0.75 mg (s.c.) 186 (62) 3 (1) 39 (13) 12 (4) 23 (8) 0 0 4 (1) 0 2 (1) NR 14 (5) 43
Dulaglutide 1.5 mg (s.c.) 221 (74) 5 (2) 60 (20) 29 (10) 53 (18) 0 0 8 (3) 1 (<1) 3 (1) NR 20 (7) 70
SUSTAIN 8
S.c. semaglutide 1 mg 298 (76) 53 (14) 89 (23) 50 (13) 60 (15) NR NR NR NR 9 (2) 4 (1) 38 (10) 68
Canagliflozin 300 mg 283 (72) 32 (8) 26 (7) 9 (2) 37 (9) NR NR NR NR 15 (4) 0 20 (5) 20
SUSTAIN 9
S.c. semaglutide 1 mg 104 (69.3) 17 (11.3) 29 (19.3) 14 (9.3) 17 (11.3) 0 0 NR NR 3 (2.0) 1 (0.7) 13 (8.7) 77
Placebo 91 (60.3) 3 (2.0) 5 (3.3) 3 (2.0) 9 (6.0) 0 0 NR NR 8 (5.3) 0 3 (2.0) 0
SUSTAIN 10
S.c. semaglutide 1 mg 204 (70.6) 5 (1.7) 63 (21.8) 30 (10.4) 45 (15.6) 0 NR NR NR 3 (1.0) NR 33 (11.4) 67
Liraglutide 1.2 mg (s.c.) 190 (66.2) 7 (2.4) 45 (15.7) 23 (8.0) 35 (12.2) 2 (0.7%) NR NR NR 4 (1.4) NR 19 (6.6) 58
SUSTAIN JAPAN 'SITA'
S.c. semaglutide 0.5 mg 77 (74.8) 0 (10.7) (6.8%) 0 0 1 (1.0) 0 4 (3.9) NR 3 (2.9) NR
S.c. semaglutide 1 mg 73 (71.6) 1 (1.0) (12.7) (8.8%) 0 0 3 (2.9) 0 2 (1.9) NR 11 (10.8) NR
Sitagliptin 100 mg 68 (66.0) 0 0 (1.9%) 0 1 (1.0) 0 0 4 (3.9) NR 2 (1.9) NR
SUSTAIN JAPAN 'INDIVIDUAL'
S.c. semaglutide 0.5 mg 206 (86.2) 3 (1.3) 29 (12.1) 13 (5.4) 24 (10.0) 0 0 4 (1.7%) 0 11 (4.6) NR 14 (5.9) NR
S.c. semaglutide 1 mg 212 (88) 6 (2.5) 46 (19.1) 14 (5.8) 38 (15.8) 0 0 2 (0.8%) 0 16 (6.6) NR 26 (10.8) NR
Additional OAD (investigators discretion) 86 (71.7) 2 (1.7) 1 (0.8) 2 (1.7) 8 (6.7) 0 0 0 0 6 (5.0) NR 4 (3.3) NR
SUSTAIN China
S.c. semaglutide 0.5 mg 209 (72.8%) 2 (0.7%) 22 (7.7%) 14 (4.9%) 58 (20.2%) 0 0 NR NR 19 (6.6%) NR 17 (5.9%) 59
S.c. semaglutide 1 mg 216 (74,5%) 6 (2.1%) 39 (13.4%) 19 (6.6%) 49 (16.9%) 1 (0.3%) 0 NR NR 14 (4.8%) NR 31 (10.7%) 68
Sitagliptin 100 mg 199 (68,6%) 4 (1.4%) 5 (1.7%) 3 (1.0%) 20 (6.9%) 0 0 NR NR 10 (3.4%) NR 6 (2.1%) 17

AE, adverse event; ER, extended release; NR, not reported; OAD, oral antidiabetic drug; s.c. subcutaneous.

An independent external adjudication committee (EAC) validated prespecified categories of adverse events (including deaths, selected cardiovascular events, malignant neoplasms, thyroid diseases [malignant thyroid neoplasms and C-cell hyperplasia], acute kidney injury, acute pancreatitis, and lactic acidosis) except in SUSTAIN 10 where there was no adjudication.

*An episode that was severe according to the ADA classification (requires assistance of another person to actively administer carbohydrate, glucagon, or other corrective action) or an episode with confirmed blood glucose value <56 mg/dL and symptoms consistent with hypoglycemia.