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. 2023 Oct 31;29(14):1795–1807. doi: 10.1177/13524585231205708

Table 2.

Safety summary in the overall population and by prior enrollment status.

AE, n (%) Overall population
n = 1057
De novo enrollment
n = 593
EVOLVE-MS-2 rollover
Prior DMF
n = 225
Prior DRF
n = 239
Any AE 938 (88.7) 519 (87.5) 207 (92.0) 212 (88.7)
 Mild 306 (28.9) 170 (28.7) 70 (31.1) 66 (27.6)
 Moderate 532 (50.3) 297 (50.1) 112 (49.8) 123 (51.5)
 Severe 100 (9.5) 52 (8.8) 25 (11.1) 23 (9.6)
AEs leading to treatment discontinuation 85 (8.0) 49 (8.3) 13 (5.8) 23 (9.6)
Most common AEs leading to treatment discontinuation (occurring in ⩾0.5% of patients)
 Lymphopenia 14 (1.3) 6 (1.0) 3 (1.3) 5 (2.1)
 MS relapse 11 (1.0) 7 (1.2) 0 4 (1.7)
 GI disorders a 7 (0.7) 5 (0.8) 1 (0.4) 1 (0.4)
 Lymphocyte count decreased 7 (0.7) 1 (0.2) 1 (0.4) 5 (2.1)
 Flushing 5 (0.5) 2 (0.3) 1 (0.4) 2 (0.8)
Any SAE 123 (11.6) 69 (11.6) 25 (11.1) 29 (12.1)
Most common SAEs (occurring in ⩾0.5% of patients)
 Nervous system disorders b 68 (6.4) 35 (5.9) 13 (5.8) 20 (8.4)
 MS relapse c 61 (5.8) 32 (5.4) 10 (4.4) 19 (7.9)
 GI disorder b 10 (0.9) 5 (0.8) 3 (1.3) 2 (0.8)
 Injury, poisoning, and procedural complications b 10 (0.9) 7 (1.2) 3 (1.3) 0
 Infections and infestations b 9 (0.9) 4 (0.7) 3 (1.3) 2 (0.8)
 Reproductive system and breast disorders b 7 (0.7) 5 (0.8) 1 (0.4) 1 (0.4)
 Cardiac disorders b 6 (0.6) 3 (0.5) 1 (0.4) 2 (0.8)
Death d 4 (0.4) 3 (0.5) 0 1 (0.4)
Most common AEs (occurring in ⩾10% of patients cumulatively)
 Flushing 288 (27.2) 226 (38.1) 29 (12.9) 33 (13.8)
 MS relapse 206 (19.5) 113 (19.1) 45 (20.0) 48 (20.1)
 Upper respiratory tract infection 153 (14.5) 76 (12.8) 35 (15.6) 42 (17.6)
 Nasopharyngitis 137 (13.0) 86 (14.5) 27 (12.0) 24 (10.0)
 Lymphopenia 124 (11.7) 51 (8.6) 38 (16.9) 35 (14.6)
 Diarrhea 109 (10.3) 66 (11.1) 25 (11.1) 18 (7.5)
AEs of special interest (category) e
 Lymphopenia (SMQ hematopoietic leukopenia) 187 (17.7) 82 (13.8) 56 (24.9) 49 (20.5)
 Lymphopenia (lymphocyte relevant) 163 (15.4) 68 (11.5) 48 (21.3) 47 (19.7)
 Cardiac disorders f 145 (13.7) 70 (11.8) 38 (16.9) 37 (15.5)
 Liver injury 79 (7.5) 39 (6.6) 19 (8.4) 21 (8.8)
 Renal injury 37 (3.5) 13 (2.2) 10 (4.4) 14 (5.9)
 Infections g 16 (1.5) 7 (1.2) 4 (1.7) 5 (2.1)
 Malignancies 5 (0.5) 1 (0.2) 1 (0.4) 3 (1.3)

AE: adverse event; DMF: dimethyl fumarate; DRF: diroximel fumarate; MS: multiple sclerosis; GI: gastrointestinal; SAE: serious adverse event; SMQ: standardized MedDRA query.

a

Diarrhea (n = 3); anal incontinence, dyspepsia, irritable bowel syndrome, and peptic ulcer (all n = 1).

b

System organ class.

c

Preferred term.

d

Accidental fall, bacterial pneumonia, hypertensive heart disease, and cardiac arrest; none of the deaths were considered related to the study drug by the investigator.

e

AEs of special interest included anaphylaxis and angioedema (serious), cardiac disorders, lymphopenia (SMQ hematopoietic leukopenia) and lymphopenia (lymphocyte relevant), liver injury, renal injury, GI tolerability AEs (serious or leading to discontinuation), abuse potential, and pancreatitis.

f

Within the cardiac disorders category, the most common AE was dizziness (57/1057; 5.4%).

g

Includes opportunistic infections (AEs and SAEs) and all serious infections (including serious opportunistic infections).