ASH Clinical News April 2016 | Page 48

Literature Scan ”In terms of predicting patient outcome, the MRD testing was more powerful.” —PROF. DAVID GRIMWADE just don’t know whether or not they are best served by having a transplant. It’s a contentious area [and] it’s uncertain what to do.” Researchers used a real-time quantitative polymerase-chain-reaction assay to detect MRD in 2,569 samples from 346 patients with NPM1-mutated AML. They then developed a custom 51-gene panel to perform targeted sequencing of 223 samples at the time of diagnosis and 49 samples obtained at the time of relapse. “Molecular profiling highlighted the complexity of NPM1-mutated AML, with segregation of patients into more than 150 subgroups, thus precluding reliable outcome prediction,” the researchers wrote. MRD status “was more informative,” they added, and was able to detect trace levels of leukemia cells after chemotherapy. Fifteen percent of patients had persistent NPM1mutated transcripts following the second chemotherapy cycle, according to analyisis of the blood samples. These patients experienced a significantly higher risk of relapse at three years, compared with patients without T:7” without a dose reduction, 50% in the REVLIMID/dexamethasone treatment group had at least one additional dose interruption with or without a dose reduction compared to 21% in the placebo/dexamethasone treatment group. Most adverse reactions and Grade 3/4 adverse reactions were more frequent in patients who received the combination of REVLIMID/dexamethasone compared to placebo/dexamethasone. Table 5: Adverse Reactions Reported in ≥5% of Patients and with a ≥2% Difference in Proportion of Patients Between the REVLIMID/dexamethasone and Placebo/dexamethasone Groups System Organ Class/ Preferred Term REVLIMID/Dex* Placebo/Dex * (N=353) (N=350) n (%) n (%) Tables 5, 6, and 7 summarize the adverse reactions reported for REVLIMID/dexamethasone and placebo/dexamethasone groups. Metabolism and nutrition disorders Anorexia Hypokalemia Hypocalcemia Appetite Decreased Dehydration Hypomagnesemia Investigations Weight Decreased Eye disorders Blurred vision Vascular disorders Deep vein thrombosis% Hypertension Hypotension 55 (15.6) 48 (13.6) 31 (8.8) 24 (6.8) 23 (6.5) 24 (6.8) 34 (9.7) 21 (6.0) 10 (2.9) 14 (4.0) 15 (4.3) 10 (2.9) 69 (19.5) 52 (14.9) 61 (17.3) 40 (11.4) 33 (9.3) 28 (7.9) 25 (7.1) 15 (4.3) 20 (5.7) 15 (4.3) Table 6: Grade 3/4 Ad verse Reactions Reported in ≥2% Patients and With a ≥1% Difference in Proportion of Patients Between the REVLIMID/dexamethasone and Placebo/dexamethasone groups System Organ Class/ Preferred Term REVLIMID/Dex# Placebo/Dex# (N=353) (N=350) n (%) n (%) Blood and lymphatic system disorders Neutropenia% 118 (33.4) 12 (3.4) Thrombocytopenia@ 43 (12.2) 22 (6.3) Anemia@ 35 (9.9) 20 (5.7) Leukopenia 14 (4.0) 1 (0.3) Lymphopenia 10 (2.8) 4 (1.1) Febrile Neutropenia% 8 (2.3) 0 (0.0) General disorders and administration site conditions Fatigue 23 (6.5) 17 (4.9) Vascular disorders Deep vein thrombosis% 29 (8.2) 12 (3.4) Infections and infestations Pneumonia@ 30 (8.5) 19 (5.4) Urinary Tract Infection 5 (1.4) 1 (0.3) Metabolism and nutrition disorders Hypokalemia 17 (4.8) 5 (1.4) Hypocalcemia 13 (3.7) 6 (1.7) Hypophosphatemia 9 (2.5) 0 (0.0) Respiratory, thoracic and mediastinal disorders Pulmonary embolism@ 14 (4.0) 3 (0.9) Respiratory Distress@ 4 (1.1) 0 (0.0) Musculoskeletal and connective tissue disorders Muscle weakness 20 (5.7) 10 (2.9) Gastrointestinal disorders Diarrhea@ 11 (3.1) 4 (1.1) Constipation 7 (2.0) 1 (0.3) Nausea@ 6 (1.7) 2 (0.6) Cardiac disorders Atrial fibrillation@ 13 (3.7) 4 (1.1) Tachycardia 6 (1.7) 1 (0.3) Cardiac Failure Congestive@ 5 (1.4) 1 (0.3) Nervous System disorders Syncope 10 (2.8) 3 (0.9) Dizziness 7 (2.0) 3 (0.9) (continued) Cosmos Communications K 1 js QC T:10” Table 5: Adverse Reactions Reported in ≥5% of Patients and with a ≥2% Difference in Proportion of Patients Between the REVLIMID/dexamethasone and Placebo/dexamethasone Groups System Organ Class/ Preferred Term REVLIMID/Dex* Placebo/Dex * (N=353) (N=350) n (%) n (%) Blood and lymphatic system disorders Neutropenia % 149 (42.2) 22 (6.3) Anemia@ 111 (31.4) 83 (23.7) Thrombocytopenia@ 76 (21.5) 37 (10.6) Leukopenia 28 (7.9) 4 (1.1) Lymphopenia 19 (5.4) 5 (1.4) General disorders and administration site conditions Fatigue 155 (43.9) 146 (41.7) Pyrexia 97 (27.5) 82 (23.4) Peripheral edema 93 (26.3) 74 (21.1) Chest Pain 29 ( 8.2) 20 (5.7) Lethargy 24 ( 6.8) 8 (2.3) Gastrointestinal disorders Constipation 143 (40.5) 74 (21.1) Diarrhea@ 136 (38.5) 96 (27.4) Nausea@ 92 (26.1) 75 (21.4) Vomiting@ 43 (12.2) 33 (9.4) Abdominal Pain@ 35 (9.9) 22 (6.3) Dry Mouth 25 (7.1) 13 (3.7) Musculoskeletal and connective tissue disorders Muscle cramp 118 (33.4) 74 (21.1) Back pain 91 (25.8) 65 (18.6) Bone Pain 48 (13.6) 39 (11.1) Pain in Limb 42 (11.9) 32 (9.1) Nervous system disorders Dizziness 82 (23.2) 59 (16.9) Tremor 75 (21.2) 26 (7.4) Dysgeusia 54 (15.3) 34 (9.7) Hypoaesthesia 36 (10.2) 25 (7.1) Neuropathyª 23 (6.5) 13 (3.7) Respiratory, Thoracic and Mediastinal Disorders Dyspnea 83 (23.5) 60 (17.1) Nasopharyngitis 62 (17.6) 31 (8.9) Pharyngitis 48 (13.6) 33 (9.4) Bronchitis 40 (11.3) 30 (8.6) Infectionsb and infestations Upper respiratory tract infection 87 (24.6) 55 (15.7) Pneumonia@ 48 (13.6) 29 (8.3) Urinary Tract Infection 30 (8.5) 19 (5.4) Sinusitis 26 (7.4) 16 (4.6) Skin and subcutaneous system disorders Rashc 75 (21.2) 33 (9.4) Sweating Increased 35 (9.9) 25 (7.1) Dry Skin 33 (9.3) 14 (4.0) Pruritus 27 (7.6) 18 (5.1) (continued)