Table 1.

Signs and symptoms and time of onset of DS by study and type of AML

Study number/treatment type populationAG221-C-001 monotherapyAG221-AML-004 monotherapyAG221-AML-005 AZA combo AG120-221-C-001
7 + 3 combo 
All studies pooled
ND AML
n = 39
n (%)
R/R AML
n = 280
n (%)
R/R AML
n = 157
n (%)
ND AML
n = 74
n (%)
ND AML
n = 93
n (%)
R/R AML
n = 437
n (%)
ND AML
n = 206
n (%)
Total AML
N = 643
n (%)
Patients with >1 DS event  5 (12.8) 33 (11.8) 14 (8.9) 13 (17.6) 2 (2.2) 47 (10.8) 20 (9.7) 67 (10.4) 
Signs and symptoms for all DS events§  
Dyspnea/hypoxia 4 (80.0) 28 (84.8) 9 (64.3) 11 (84.6) 2 (100.0) 37 (78.7) 17 (85.0) 54 (80.6) 
Pulmonary infiltrate 4 (80.0) 24 (72.7) 8 (57.1) 11 (84.6) 2 (100.0) 32 (68.1) 17 (85.0) 49 (73.1) 
Unexplained fever 2 (40.0) 25 (75.8) 8 (57.1) 11 (84.6) 2 (100.0) 33 (70.2) 15 (75.0) 48 (71.6) 
Required oxygen supplementation  3 (60.0) 18 (54.5) 7 (50.0) 9 (69.2) 25 (53.2) 12 (60.0) 37 (55.2) 
Pleural effusion 4 (80.0) 13 (39.4) 5 (35.7) 9 (69.2) 1 (50.0) 18 (38.3) 14 (70.0) 32 (47.8) 
Serum creatinine increase 4 (80.0) 13 (39.4) 5 (35.7) 4 (30.8) 18 (38.3) 8 (40.0) 26 (38.8) 
Edema or rapid weight gain 1 (20.0) 7 (21.2) 5 (35.7) 5 (38.5) 12 (25.5) 6 (30.0) 18 (26.9) 
Pericardial effusion 4 (80.0) 5 (15.2) 1 (7.1) 3 (23.1) 6 (12.8) 7 (35.0) 13 (19.4) 
Rash 8 (24.2) 2 (14.3) 3 (23.1) 10 (21.3) 3 (15.0) 13 (19.4) 
Bone pain 1 (20.0) 6 (18.2) 3 (21.4) 1 (7.7) 9 (19.1) 2 (10.0) 11 (16.4) 
Time to onset of first DS, d 
Median 48.0 32.0 27.0 42.0 38.5 32.0 42.5 32.0 
Min, max 10.0, 99.0 9.0, 129.0 5.0, 122.0 4.0, 84.0 29.0, 48.0 5.0, 129.0 4.0, 99.0 4.0, 129.0 
Study number/treatment type populationAG221-C-001 monotherapyAG221-AML-004 monotherapyAG221-AML-005 AZA combo AG120-221-C-001
7 + 3 combo 
All studies pooled
ND AML
n = 39
n (%)
R/R AML
n = 280
n (%)
R/R AML
n = 157
n (%)
ND AML
n = 74
n (%)
ND AML
n = 93
n (%)
R/R AML
n = 437
n (%)
ND AML
n = 206
n (%)
Total AML
N = 643
n (%)
Patients with >1 DS event  5 (12.8) 33 (11.8) 14 (8.9) 13 (17.6) 2 (2.2) 47 (10.8) 20 (9.7) 67 (10.4) 
Signs and symptoms for all DS events§  
Dyspnea/hypoxia 4 (80.0) 28 (84.8) 9 (64.3) 11 (84.6) 2 (100.0) 37 (78.7) 17 (85.0) 54 (80.6) 
Pulmonary infiltrate 4 (80.0) 24 (72.7) 8 (57.1) 11 (84.6) 2 (100.0) 32 (68.1) 17 (85.0) 49 (73.1) 
Unexplained fever 2 (40.0) 25 (75.8) 8 (57.1) 11 (84.6) 2 (100.0) 33 (70.2) 15 (75.0) 48 (71.6) 
Required oxygen supplementation  3 (60.0) 18 (54.5) 7 (50.0) 9 (69.2) 25 (53.2) 12 (60.0) 37 (55.2) 
Pleural effusion 4 (80.0) 13 (39.4) 5 (35.7) 9 (69.2) 1 (50.0) 18 (38.3) 14 (70.0) 32 (47.8) 
Serum creatinine increase 4 (80.0) 13 (39.4) 5 (35.7) 4 (30.8) 18 (38.3) 8 (40.0) 26 (38.8) 
Edema or rapid weight gain 1 (20.0) 7 (21.2) 5 (35.7) 5 (38.5) 12 (25.5) 6 (30.0) 18 (26.9) 
Pericardial effusion 4 (80.0) 5 (15.2) 1 (7.1) 3 (23.1) 6 (12.8) 7 (35.0) 13 (19.4) 
Rash 8 (24.2) 2 (14.3) 3 (23.1) 10 (21.3) 3 (15.0) 13 (19.4) 
Bone pain 1 (20.0) 6 (18.2) 3 (21.4) 1 (7.7) 9 (19.1) 2 (10.0) 11 (16.4) 
Time to onset of first DS, d 
Median 48.0 32.0 27.0 42.0 38.5 32.0 42.5 32.0 
Min, max 10.0, 99.0 9.0, 129.0 5.0, 122.0 4.0, 84.0 29.0, 48.0 5.0, 129.0 4.0, 99.0 4.0, 129.0 

DS study and type of AML included ND or R/R AML; and AML safety population.

AML, acute myeloid leukemia; AZA, azacitidine; combo, combination; DS, differentiation syndrome; min, minimum; max, maximum; ND, newly diagnosed; R/R, relapsed or refractory.

Patients were treated with enasidenib (100 mg or 200 mg per day) in combination with azacitidine 75 mg/m2 per day.

Patients were treated with enasidenib (100 mg once daily) in combination with cytarabine (200 mg/m2 per day for 7 days) and either daunorubicin (60 mg/m2 per day for 3 days) or idarubicin (12 mg/m2 per day for 3 days).

Percentage for patients with at >1 DS event was based on number of patients in the safety population.

§

Percentage for each sign and symptom was calculated based on the number of patients reporting a DS event and not the total number.

This category is separate from “dyspnea/hypoxia” as either event may not require oxygen supplementation.

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