6 ADVERSE REACTIONS
Because clinical trials are conducted under widely varying conditions, the adverse reaction rates observed cannot be directly compared to rates on other clinical trials and may not reflect the rates observed in clinical practice.
6.1 Chronic Myeloid Leukemia
The majority of Gleevec-treated patients experienced adverse reactions at some time. Most reactions were of mild-to-moderate grade, but drug was discontinued for drug-related adverse reactions in 2.4% of newly diagnosed patients, 4% of patients in chronic phase after failure of interferon-alpha therapy, 4% in accelerated phase and 5% in blast crisis.
The most frequently reported drug-related adverse reactions were edema, nausea and vomiting, muscle cramps, musculoskeletal pain, diarrhea and rash (Table 2 for newly diagnosed CML, Table 3 for other CML patients). Edema was most frequently periorbital or in lower limbs and was managed with diuretics, other supportive measures, or by reducing the dose of Gleevec. [ see Dosage and Administration (2.10) ]. The frequency of severe superficial edema was 1.5%-6%.
A variety of adverse reactions represent local or general fluid retention including pleural effusion, ascites, pulmonary edema and rapid weight gain with or without superficial edema. These reactions appear to be dose related, were more common in the blast crisis and accelerated phase studies (where the dose was 600 mg/day), and are more common in the elderly. These reactions were usually managed by interrupting Gleevec treatment and using diuretics or other appropriate supportive care measures. A few of these reactions may be serious or life threatening, and one patient with blast crisis died with pleural effusion, congestive heart failure, and renal failure.
Adverse reactions, regardless of relationship to study drug, that were reported in at least 10% of the Gleevec treated patients are shown in Tables 2 and 3.
Table 2 Adverse Reactions Reported in Newly Diagnosed CML Clinical Trial (≥10% of Gleevec Treated Patients)(1) | | All Grades | CTC Grades 3/4 |
| | Gleevec | IFN+Ara−C | Gleevec | IFN+Ara−C |
| Preferred Term | N=551 (%) | N=533 (%) | N=551 (%) | N=533 (%) |
| Fluid Retention | 61.7 | 11.1 | 2.5 | 0.9 |
| − Superficial Edema | 59.9 | 9.6 | 1.5 | 0.4 |
| − Other Fluid Retention Reactions2 | 6.9 | 1.9 | 1.3 | 0.6 |
| Nausea | 49.5 | 61.5 | 1.3 | 5.1 |
| Muscle Cramps | 49.2 | 11.8 | 2.2 | 0.2 |
| Musculoskeletal Pain | 47.0 | 44.8 | 5.4 | 8.6 |
| Diarrhea | 45.4 | 43.3 | 3.3 | 3.2 |
| Rash and Related Terms | 40.1 | 26.1 | 2.9 | 2.4 |
| Fatigue | 38.8 | 67.0 | 1.8 | 25.1 |
| Headache | 37.0 | 43.3 | 0.5 | 3.8 |
| Joint Pain | 31.4 | 38.1 | 2.5 | 7.7 |
| Abdominal Pain | 36.5 | 25.9 | 4.2 | 3.9 |
| Nasopharyngitis | 30.5 | 8.8 | 0 | 0.4 |
| Hemorrhage | 28.9 | 21.2 | 1.8 | 1.7 |
| - GI Hemorrhage | 1.6 | 1.1 | 0.5 | 0.2 |
| - CNS Hemorrhage | 0.2 | 0.4 | 0 | 0.4 |
| Myalgia | 24.1 | 38.8 | 1.5 | 8.3 |
| Vomiting | 22.5 | 27.8 | 2.0 | 3.4 |
| Dyspepsia | 18.9 | 8.3 | 0 | 0.8 |
| Cough | 20.0 | 23.1 | 0.2 | 0.6 |
| Pharyngolaryngeal Pain | 18.1 | 11.4 | 0.2 | 0 |
| Upper Respiratory Tract Infection | 21.2 | 8.4 | 0.2 | 0.4 |
| Dizziness | 19.4 | 24.4 | 0.9 | 3.8 |
| Pyrexia | 17.8 | 42.6 | 0.9 | 3.0 |
| Weight Increased | 15.6 | 2.6 | 2.0 | 0.4 |
| Insomnia | 14.7 | 18.6 | 0 | 2.3 |
| Depression | 14.9 | 35.8 | 0.5 | 13.1 |
| Influenza | 13.8 | 6.2 | 0.2 | 0.2 |
| Bone Pain | 11.3 | 15.6 | 1.6 | 3.4 |
| Constipation | 11.4 | 14.4 | 0.7 | 0.2 |
| Sinusitis | 11.4 | 6.0 | 0.2 | 0.2 |
(1)All adverse reactions occurring in ≥10% of Gleevec treated patients are listed regardless of suspected relationship to treatment. (2)Other fluid retention reactions include pleural effusion, ascites, pulmonary edema, pericardial effusion, anasarca, edema aggravated, and fluid retention not otherwise specified. |
Table 3 Adverse Reactions Reported in Other CML Clinical Trials (≥10% of All Patients in any Trial)(1) | | Myeloid Blast Crisis (n= 260) | Accelerated Phase (n=235) | Chronic Phase, IFN Failure (n=532) |
| | % | % | % |
| Preferred Term | All Grades | Grade 3/4 | All Grades | Grade 3/4 | All Grades | Grade 3/4 |
| Fluid Retention | 72 | 11 | 76 | 6 | 69 | 4 |
| -Superficial Edema | 66 | 6 | 74 | 3 | 67 | 2 |
| -Other Fluid Retention Reactions (2) | 22 | 6 | 15 | 4 | 7 | 2 |
| Nausea | 71 | 5 | 73 | 5 | 63 | 3 |
| Muscle Cramps | 28 | 1 | 47 | 0.4 | 62 | 2 |
| Vomiting | 54 | 4 | 58 | 3 | 36 | 2 |
| Diarrhea | 43 | 4 | 57 | 5 | 48 | 3 |
| Hemorrhage | 53 | 19 | 49 | 11 | 30 | 2 |
| - CNS Hemorrhage | 9 | 7 | 3 | 3 | 2 | 1 |
| - GI Hemorrhage | 8 | 4 | 6 | 5 | 2 | 0.4 |
| Musculoskeletal Pain | 42 | 9 | 49 | 9 | 38 | 2 |
| Fatigue | 30 | 4 | 46 | 4 | 48 | 1 |
| Skin Rash | 36 | 5 | 47 | 5 | 47 | 3 |
| Pyrexia | 41 | 7 | 41 | 8 | 21 | 2 |
| Arthralgia | 25 | 5 | 34 | 6 | 40 | 1 |
| Headache | 27 | 5 | 32 | 2 | 36 | 0.6 |
| Abdominal Pain | 30 | 6 | 33 | 4 | 32 | 1 |
| Weight Increased | 5 | 1 | 17 | 5 | 32 | 7 |
| Cough | 14 | 0.8 | 27 | 0.9 | 20 | 0 |
| Dyspepsia | 12 | 0 | 22 | 0 | 27 | 0 |
| Myalgia | 9 | 0 | 24 | 2 | 27 | 0.2 |
| Nasopharyngitis | 10 | 0 | 17 | 0 | 22 | 0.2 |
| Asthenia | 18 | 5 | 21 | 5 | 15 | 0.2 |
| Dyspnea | 15 | 4 | 21 | 7 | 12 | 0.9 |
| Upper Respiratory Tract Infection | 3 | 0 | 12 | 0.4 | 19 | 0 |
| Anorexia | 14 | 2 | 17 | 2 | 7 | 0 |
| Night Sweats | 13 | 0.8 | 17 | 1 | 14 | 0.2 |
| Constipation | 16 | 2 | 16 | 0.9 | 9 | 0.4 |
| Dizziness | 12 | 0.4 | 13 | 0 | 16 | 0.2 |
| Pharyngitis | 10 | 0 | 12 | 0 | 15 | 0 |
| Insomnia | 10 | 0 | 14 | 0 | 14 | 0.2 |
| Pruritus | 8 | 1 | 14 | 0.9 | 14 | 0.8 |
| Hypokalemia | 13 | 4 | 9 | 2 | 6 | 0.8 |
| Pneumonia | 13 | 7 | 10 | 7 | 4 | 1 |
| Anxiety | 8 | 0.8 | 12 | 0 | 8 | 0.4 |
| Liver Toxicity | 10 | 5 | 12 | 6 | 6 | 3 |
| Rigors | 10 | 0 | 12 | 0.4 | 10 | 0 |
| Chest Pain | 7 | 2 | 10 | 0.4 | 11 | 0.8 |
| Influenza | 0.8 | 0.4 | 6 | 0 | 11 | 0.2 |
| Sinusitis | 4 | 0.4 | 11 | 0.4 | 9 | 0.4 |
(1) All adverse reactions occurring in ≥10% of patients are listed regardless of suspected relationship to treatment. (2) Other fluid retention reactions include pleural effusion, ascites, pulmonary edema, pericardial effusion, anasarca, edema aggravated, and fluid retention not otherwise specified. |
6.2 Hematologic Toxicity
Cytopenias, and particularly neutropenia and thrombocytopenia, were a consistent finding in all studies, with a higher frequency at doses ≥750 mg (Phase 1 study). The occurrence of cytopenias in CML patients was also dependent on the stage of the disease.
In patients with newly diagnosed CML, cytopenias were less frequent than in the other CML patients (see Tables 4 and 5). The frequency of Grade 3 or 4 neutropenia and thrombocytopenia was between 2- and 3-fold higher in blast crisis and accelerated phase compared to chronic phase (see Tables 4 and 5). The median duration of the neutropenic and thrombocytopenic episodes varied from 2 to 3 weeks, and from 2 to 4 weeks, respectively.
These reactions can usually be managed with either a reduction of the dose or an interruption of treatment with Gleevec, but in rare cases require permanent discontinuation of treatment.
Table 4 Lab Abnormalities in Newly Diagnosed CML Clinical Trial | | Gleevec N=551 | IFN+Ara−C N=533 |
| | % | % |
| CTC Grades | Grade 3 | Grade 4 | Grade 3 | Grade 4 |
| Hematology Parameters* | | | | |
| − Neutropenia* | 13.1 | 3.6 | 20.8 | 4.5 |
| − Thrombocytopenia* | 8.5 | 0.4 | 15.9 | 0.6 |
| − Anemia | 3.3 | 1.1 | 4.1 | 0.2 |
| Biochemistry Parameters | | | | |
| − Elevated Creatinine | 0 | 0 | 0.4 | 0 |
| − Elevated Bilirubin | 0.9 | 0.2 | 0.2 | 0 |
| − Elevated Alkaline Phosphatase | 0.2 | 0 | 0.8 | 0 |
| − Elevated SGOT /SGPT | 4.7 | 0.5 | 7.1 | 0.4 |
| *p<0.001 (difference in Grade 3 plus 4 abnormalities between the two treatment groups) |
Table 5 Lab Abnormalities in Other CML Clinical Trials | | Myeloid Blast Crisis (n=260) | Accelerated Phase (n=235) | Chronic Phase, IFN Failure (n=532) |
| | 600 mg n=223 400 mg n=37 | 600 mg n=158 400 mg n=77 | 400 mg |
| | % | % | % |
| CTC Grades 1 | Grade 3 | Grade 4 | Grade 3 | Grade 4 | Grade 3 | Grade 4 |
| Hematology Parameters | | | | | | |
| − Neutropenia | 16 | 48 | 23 | 36 | 27 | 9 |
| − Thrombocytopenia | 30 | 33 | 31 | 13 | 21 | <1 |
| − Anemia | 42 | 11 | 34 | 7 | 6 | 1 |
| Biochemistry Parameters | | | | | | |
| − Elevated Creatinine | 1.5 | 0 | 1.3 | 0 | 0.2 | 0 |
| − Elevated Bilirubin | 3.8 | 0 | 2.1 | 0 | 0.6 | 0 |
| − Elevated Alkaline Phosphatase | 4.6 | 0 | 5.5 | 0.4 | 0.2 | 0 |
| − Elevated SGOT (AST) | 1.9 | 0 | 3.0 | 0 | 2.3 | 0 |
| − Elevated SGPT (ALT) | 2.3 | 0.4 | 4.3 | 0 | 2.1 | 0 |
| 1CTC Grades: neutropenia (Grade 3 ≥0.5-1.0 x 109/L, Grade 4 <0.5 x 109/L), thrombocytopenia (Grade 3 ≥10-50 x 109/L, Grade 4 <10 x 109/L), anemia (hemoglobin ≥65-80 g/L, Grade 4 <65 g/L), elevated creatinine (Grade 3 >3-6 x upper limit normal range [ULN], Grade 4 >6 x ULN), elevated bilirubin (Grade 3 >3-10 x ULN, Grade 4 >10 x ULN), elevated alkaline phosphatase (Grade 3 >5-20 x ULN, Grade 4 >20 x ULN), elevated SGOT or SGPT (Grade 3 >5-20 x ULN, Grade 4 >20 x ULN) |
6.3 Hepatotoxicity
Severe elevation of transaminases or bilirubin occurred in approximately 5% of CML patients (see Tables 4 and 5) and were usually managed with dose reduction or interruption (the median duration of these episodes was approximately 1 week). Treatment was discontinued permanently because of liver laboratory abnormalities in less than 1.0% of CML patients. One patient, who was taking acetaminophen regularly for fever, died of acute liver failure. In the Phase 2 GIST trial, Grade 3 or 4 SGPT (ALT) elevations were observed in 6.8% of patients and Grade 3 or 4 SGOT (AST) elevations were observed in 4.8% of patients. Bilirubin elevation was observed in 2.7% of patients.
6.4 Adverse Reactions in Pediatric Population
The overall safety profile of pediatric patients treated with Gleevec in 93 children studied was similar to that found in studies with adult patients, except that musculoskeletal pain was less frequent (20.5%) and peripheral edema was not reported. Nausea and vomiting were the most commonly reported individual adverse reactions with an incidence similar to that seen in adult patients. Although most patients experienced adverse reactions at some time during the study, the incidence of Grade 3/4 adverse reactions was low.
6.5 Adverse Reactions in Other Subpopulations
In older patients (≥65 years old), with the exception of edema, where it was more frequent, there was no evidence of an increase in the incidence or severity of adverse reactions. In women there was an increase in the frequency of neutropenia, as well as Grade 1/2 superficial edema, headache, nausea, rigors, vomiting, rash, and fatigue. No differences were seen that were related to race but the subsets were too small for proper evaluation.
6.6 Acute Lymphoblastic Leukemia
The adverse reactions were similar for Ph+ ALL as for Ph+ CML. The most frequently reported drug-related adverse reactions reported in the Ph+ ALL studies were mild nausea and vomiting, diarrhea, myalgia, muscle cramps and rash, which were easily manageable. Superficial edema was a common finding in all studies and were described primarily as periorbital or lower limb edemas. These edemas were rarely severe and may be managed with diuretics, other supportive measures, or in some patients by reducing the dose of Gleevec.
6.7 Myelody s plastic/Myeloproliferative Diseases
Adverse reactions, regardless of relationship to study drug, that were reported in at least 10% of the patients treated with Gleevec for MDS/MPD in the phase 2 study, are shown in Table 6.
Table 6 Adverse Reactions Reported (More than One Patient) in MPD Patients in the Phase 2 Study (≥10% All Patients) All Grades | Preferred Term | N=7 n (%) |
| Nausea | 4 (57.1) |
| Diarrhea | 3 (42.9) |
| Anemia | 2 (28.6) |
| Fatigue | 2 (28.6) |
| Muscle Cramp | 3 (42.9) |
| Arthralgia | 2 (28.6) |
| Periorbital Edema | 2 (28.6) |
6.8 Aggressive Systemic Mastocytosis
All ASM patients experienced at least one adverse reaction at some time. The most frequently reported adverse reactions were diarrhea, nausea, ascites, muscle cramps, dyspnea, fatigue, peripheral edema, anemia, pruritus, rash and lower respiratory tract infection. None of the 5 patients in the phase 2 study with ASM discontinued Gleevec due to drug-related adverse reactions or abnormal laboratory values.
6.9 Hypereosinophilic Syndrome and Chronic Eosinophilic Leukemia
The safety profile in the HES/CEL patient population does not appear to be different from the safety profile of Gleevec observed in other hematologic malignancy populations, such as Ph+ CML. All patients experienced at least one adverse reaction, the most common being gastrointestinal, cutaneous and musculoskeletal disorders. Hematological abnormalities were also frequent, with instances of CTC Grade 3 leukopenia, neutropenia, lymphopenia and anemia.
6.10 Dermatofibrosarcoma Protuberans
Adverse reactions, regardless of relationship to study drug, that were reported in at least 10% of the 12 patients treated with Gleevec for DFSP in the phase 2 study are shown in Table 7.
Table 7 Adverse Reactions Reported in DFSP Patients in the Phase 2 Study (≥10% All Patients) All Grades | Preferred term | N=12 n (%) |
| Nausea | 5 (41.7) |
| Diarrhea | 3 (25.0) |
| Vomiting | 3 (25.0) |
| Periorbital Edema | 4 (33.3) |
| Face Edema | 2 (16.7) |
| Rash | 3 (25.0) |
| Fatigue | 5 (41.7) |
| Edema Peripheral | 4 (33.3) |
| Pyrexia | 2 (16.7) |
| Eye Edema | 4 (33.3) |
| Lacrimation Increased | 3 (25.0) |
| Dyspnea Exertional | 2 (16.7) |
| Anemia | 3 (25.0) |
| Rhinitis | 2 (16.7) |
| Anorexia | 2 (16.7) |
Clinically relevant or severe laboratory abnormalities in the 12 patients treated with Gleevec for DFSP in the phase 2 study are presented in Table 8.
Table 8 Laboratory Abnormalities Reported in DFSP Patients in the Phase 2 Study | | N=12 |
| CTC Grades 1 | Grade 3 | Grade 4 |
| Hematology Parameters | | |
| - Anemia | 17 % | 0 % |
| - Thrombocytopenia | 17 % | 0 % |
| - Neutropenia | 0 % | 8 % |
| Biochemistry Parameters | | |
| - Elevated Creatinine | 0 % | 8 % |
| 1CTC Grades: neutropenia (Grade 3 ≥0.5-1.0 x 109/L, Grade 4 <0.5 x 109/L), thrombocytopenia (Grade 3 ≥10 - 50 x 109/L, Grade 4 <10 x 109/L), anemia (Grade 3 ≥65-80 g/L, Grade 4 <65 g/L), elevated creatinine (Grade 3 >3-6 x upper limit normal range [ULN], Grade 4 >6 x ULN), |
6.11 Gastrointestinal Stromal Tumors
Unresectable and/or Malignant Metastatic GIST
In the Phase 3 trials the majority of Gleevec-treated patients experienced adverse reactions at some time. The most frequently reported adverse reactions were edema, fatigue, nausea, abdominal pain, diarrhea, rash, vomiting, myalgia, anemia and anorexia. Drug was discontinued for adverse reactions in a total of 89 patients (5.4%). Superficial edema, most frequently periorbital or lower extremity edema was managed with diuretics, other supportive measures, or by reducing the dose of Gleevec [ see Dosage and Administration (2.10) ]. Severe (CTC Grade 3/4) edema was observed in 182 patients (11.1%).
Adverse reactions, regardless of relationship to study drug, that were reported in at least 10% of the patients treated with Gleevec are shown in Table 9.
Overall the incidence of all grades of adverse reactions and the incidence of severe adverse reactions (CTC Grade 3 and above) were similar between the two treatment arms except for edema, which was reported more frequently in the 800 mg group.
Table 9 Number (%) of Patients with Adverse Reactions where Frequency is ≥10% in any One Group (Full Analysis Set) in the Phase 3 Unresectable and/or Malignant Metastatic GIST Clinical Trials | Reported or Specified Term | Imatinib 400 mg N=818 | Imatinib 800 mg N=822 |
| | All Grades % | Grades 3/4/5 % | All Grades % | Grades 3/4/5 % |
| Edema | 76.7 | 9.0 | 86.1 | 13.1 |
| Fatigue/lethargy, malaise, asthenia | 69.3 | 11.7 | 74.9 | 12.2 |
| Nausea | 58.1 | 9.0 | 64.5 | 7.8 |
| Abdominal pain/cramping | 57.2 | 13.8 | 55.2 | 11.8 |
| Diarrhea | 56.2 | 8.1 | 58.2 | 8.6 |
| Rash/desquamation | 38.1 | 7.6 | 49.8 | 8.9 |
| Vomiting | 37.4 | 9.2 | 40.6 | 7.5 |
| Myalgia | 32.2 | 5.6 | 30.2 | 3.8 |
| Anemia | 32.0 | 4.9 | 34.8 | 6.4 |
| Anorexia | 31.1 | 6.6 | 35.8 | 4.7 |
| Other GI toxicity | 25.2 | 8.1 | 28.1 | 6.6 |
| Headache | 22.0 | 5.7 | 19.7 | 3.6 |
| Other pain (excluding tumor related pain) | 20.4 | 5.9 | 20.8 | 5.0 |
| Other dermatology /skin toxicity | 17.6 | 5.9 | 20.1 | 5.7 |
| Leukopenia | 17.0 | 0.7 | 19.6 | 1.6 |
| Other constitutional symptoms | 16.7 | 6.4 | 15.2 | 4.4 |
| Cough | 16.1 | 4.5 | 14.5 | 3.2 |
| Infection (without neutropenia) | 15.5 | 6.6 | 16.5 | 5.6 |
| Pruritus | 15.4 | 5.4 | 18.9 | 4.3 |
| Other neurological toxicity | 15.0 | 6.4 | 15.2 | 4.9 |
| Constipation | 14.8 | 5.1 | 14.4 | 4.1 |
| Other renal/genitourinary toxicity | 14.2 | 6.5 | 13.6 | 5.2 |
| Arthralgia (joint pain) | 13.6 | 4.8 | 12.3 | 3.0 |
| Dyspnea (shortness of breath) | 13.6 | 6.8 | 14.2 | 5.6 |
| Fever in absence of neutropenia (ANC<1.0 x 109/L) | 13.2 | 4.9 | 12.9 | 3.4 |
| Sweating | 12.7 | 4.6 | 8.5 | 2.8 |
| Other hemorrhage | 12.3 | 6.7 | 13.3 | 6.1 |
| Weight gain | 12.0 | 1.0 | 10.6 | 0.6 |
| Alopecia | 11.9 | 4.3 | 14.8 | 3.2 |
| Dyspepsia/heartburn | 11.5 | 0.6 | 10.9 | 0.5 |
| Neutropenia/ granulocytopenia | 11.5 | 3.1 | 16.1 | 4.1 |
| Rigors/chills | 11.0 | 4.6 | 10.2 | 3.0 |
| Dizziness/ lightheadedness | 11.0 | 4.8 | 10.0 | 2.8 |
| Creatinine increase | 10.8 | 0.4 | 10.1 | 0.6 |
| Flatulence | 10.0 | 0.2 | 10.1 | 0.1 |
| Stomatitis/pharyngitis (oral/pharyngeal mucositis) | 9.2 | 5.4 | 10.0 | 4.3 |
| Lymphopenia | 6.0 | 0.7 | 10.1 | 1.9 |
Clinically relevant or severe abnormalities of routine hematologic or biochemistry laboratory values were not reported or evaluated in the Phase 3 GIST trials. Severe abnormal laboratory values reported in the Phase 2 GIST trial are presented in Table 10.
Table 10 Laboratory Abnormalities in the Phase 2 Unresectable and/or Malignant Metastatic GIST Trial | | 400 mg (n=73) | 600 mg (n=74) |
| | % | % |
| CTC Grades 1 | Grade 3 | Grade 4 | Grade 3 | Grade 4 |
| Hematology Parameters | | | | |
| − Anemia | 3 | 0 | 8 | 1 |
| − Thrombocytopenia | 0 | 0 | 1 | 0 |
| − Neutropenia | 7 | 3 | 8 | 3 |
| Biochemistry Parameters | | | | |
| − Elevated Creatinine | 0 | 0 | 3 | 0 |
| − Reduced Albumin | 3 | 0 | 4 | 0 |
| − Elevated Bilirubin | 1 | 0 | 1 | 3 |
| − Elevated Alkaline Phosphatase | 0 | 0 | 3 | 0 |
| − Elevated SGOT (AST) | 4 | 0 | 3 | 3 |
| − Elevated SGPT (ALT) | 6 | 0 | 7 | 1 |
| 1CTC Grades: neutropenia (Grade 3 ≥0.5-1.0 x 109/L, Grade 4 <0.5 x 109/L), thrombocytopenia (Grade 3 ≥10 - 50 x 109/L, Grade 4 <10 x 109/L), anemia (Grade 3 ≥65-80 g/L, Grade 4 <65 g/L), elevated creatinine (Grade 3 >3-6 x upper limit normal range [ULN], Grade 4 >6 x ULN), elevated bilirubin (Grade 3 >3-10 x ULN, Grade 4 >10 x ULN), elevated alkaline phosphatase, SGOT or SGPT (Grade 3 >5-20 x ULN, Grade 4 >20 x ULN), albumin (Grade 3 <20 g/L) |
Adjuvant Treatment of GIST
The majority of both Gleevec and placebo treated patients experienced at least one adverse reaction at some time. The most frequently reported adverse reactions were similar to those reported in other clinical studies in other patient populations and include diarrhea, fatigue, nausea, edema, decreased hemoglobin, rash, vomiting and abdominal pain. No new adverse reactions were reported in the adjuvant GIST treatment setting that had not been previously reported in other patient populations including patients with unresectable and/or malignant metastatic GIST. Drug was discontinued for adverse reactions in 57 patients (17%) and 11 patients (3%) of the Gleevec and placebo treated patients respectively. Edema, gastrointestinal disturbances (nausea, vomiting, abdominal distention and diarrhea), fatigue, low hemoglobin and rash were the most frequently reported adverse reactions at the time of discontinuation.
Adverse reactions, regardless of relationship to study drug, that were reported in at least 5% of the patients treated with Gleevec are shown in Table 11.
Table 11: Adverse Reactions Reported in the Adjuvant GIST Trial (≥5% of Gleevec Treated Patients)(1) | | All CTC Grades | CTC Grade 3 and above |
| | Gleevec (n=337) | Placebo (n=345) | Gleevec (n=337) | Placebo (n=345) |
| Preferred Term | % | % | % | % |
| Diarrhea | 59.3 | 29.3 | 3.0 | 1.4 |
| Fatigue | 57.0 | 40.9 | 2.1 | 1.2 |
| Nausea | 53.1 | 27.8 | 2.4 | 1.2 |
| Periorbital Edema | 47.2 | 14.5 | 1.2 | 0 |
| Hemoglobin Decreased | 46.9 | 27.0 | 0.6 | 0 |
| Peripheral Edema | 26.7 | 14.8 | 0.3 | 0 |
| Rash (Exfoliative) | 26.1 | 12.8 | 2.7 | 0 |
| Vomiting | 25.5 | 13.9 | 2.4 | 0.6 |
| Abdominal Pain | 21.1 | 22.3 | 3.0 | 1.4 |
| Headache | 19.3 | 20.3 | 0.6 | 0 |
| Dyspepsia | 17.2 | 13.0 | 0.9 | 0 |
| Anorexia | 16.9 | 8.7 | 0.3 | 0 |
| Weight Increased | 16.9 | 11.6 | 0.3 | 0 |
| Liver enzymes (ALT) Increased | 16.6 | 13.0 | 2.7 | 0 |
| Muscle spasms | 16.3 | 3.3 | 0 | 0 |
| Neutrophil Count Decreased | 16.0 | 6.1 | 3.3 | 0.9 |
| Arthralgia | 15.1 | 14.5 | 0 | 0.3 |
| White Blood Cell Count Decreased | 14.5 | 4.3 | 0.6 | 0.3 |
| Constipation | 12.8 | 17.7 | 0 | 0.3 |
| Dizziness | 12.5 | 10.7 | 0 | 0.3 |
| Liver Enzymes (AST) Increased | 12.2 | 7.5 | 2.1 | 0 |
| Myalgia | 12.2 | 11.6 | 0 | 0.3 |
| Blood Creatinine Increased | 11.6 | 5.8 | 0 | 0.3 |
| Cough | 11.0 | 11.3 | 0 | 0 |
| Pruritus | 11.0 | 7.8 | 0.9 | 0 |
| Weight Decreased | 10.1 | 5.2 | 0 | 0 |
| Hyperglycemia | 9.8 | 11.3 | 0.6 | 1.7 |
| Insomnia | 9.8 | 7.2 | 0.9 | 0 |
| Lacrimation Increased | 9.8 | 3.8 | 0 | 0 |
| Alopecia | 9.5 | 6.7 | 0 | 0 |
| Flatulence | 8.9 | 9.6 | 0 | 0 |
| Rash | 8.9 | 5.2 | 0.9 | 0 |
| Abdominal Distension | 7.4 | 6.4 | 0.3 | 0.3 |
| Back Pain | 7.4 | 8.1 | 0.6 | 0 |
| Pain in Extremity | 7.4 | 7.2 | 0.3 | 0 |
| Hypokalemia | 7.1 | 2.0 | 0.9 | 0.6 |
| Depression | 6.8 | 6.4 | 0.9 | 0.6 |
| Facial Edema | 6.8 | 1.2 | 0.3 | 0 |
| Blood Alkaline Phosphatase Increased | 6.5 | 7.5 | 0 | 0 |
| Dry skin | 6.5 | 5.2 | 0 | 0 |
| Dysgeusia | 6.5 | 2.9 | 0 | 0 |
| Abdominal Pain Upper | 6.2 | 6.4 | 0.3 | 0 |
| Neuropathy Peripheral | 5.9 | 6.4 | 0 | 0 |
| Hypocalcemia | 5.6 | 1.7 | 0.3 | 0 |
| Leukopenia | 5.0 | 2.6 | 0.3 | 0 |
| Platelet Count Decreased | 5.0 | 3.5 | 0 | 0 |
| Stomatitis | 5.0 | 1.7 | 0.6 | 0 |
| Upper Respiratory Tract Infection | 5.0 | 3.5 | 0 | 0 |
| Vision Blurred | 5.0 | 2.3 | 0 | 0 |
( 1 )All adverse reactions occurring in ≥5% of patients are listed regardless of suspected relationship to treatment. A patient with multiple occurrences of an adverse reaction is counted only once in the adverse reaction category. |
6.12 Additional Data from Multiple Clinical Trials
The following adverse reactions have been reported during clinical trials of Gleevec.
Cardiac Disorders:
Estimated 0.1%-1%: congestive cardiac failure, tachycardia, palpitations, pulmonary edema,
Estimated 0.01%-0.1%: arrhythmia, atrial fibrillation, cardiac arrest, myocardial infarction, angina pectoris, pericardial effusion
Vascular Disorders:
Estimated 1%-10%: flushing, hemorrhage
Estimated 0.1%-1%: hypertension, hypotension, peripheral coldness, Raynauds phenomenon, hematoma,
Clinical Laboratory Tests:
Estimated 0.1%-1%: blood CPK increased, blood LDH increased,
Estimated 0.01%-0.1%: blood amylase increased
Dermatologic:
Estimated 1%-10%: dry skin, alopecia, face edema, erythema, photosensitivity reaction,
Estimated 0.1%-1%: exfoliative dermatitis, bullous eruption, nail disorder, purpura, psoriasis, rash pustular, contusion, sweating increased, urticaria, ecchymosis, increased tendency to bruise, hypotrichosis, skin hypopigmentation, skin hyperpigmentation, onychoclasis, folliculitis, petechiae
Estimated 0.01%-0.1%: vesicular rash, Stevens-Johnson syndrome, acute generalized exanthematous pustulosis, acute febrile neutrophilic dermatosis (Sweet’s syndrome), nail discoloration, angioneurotic edema, erythema multiforme, leucocytoclastic vasculitis
Digestive:
Estimated 1%-10%: abdominal distention, gastroesophageal reflux, dry mouth, gastritis
Estimated 0.1%-1%: gastric ulcer, stomatitis, mouth ulceration, eructation, melena, esophagitis, ascites, hematemesis, chelitis, dysphagia, pancreatitis,
Estimated 0.01%-0.1%: colitis, ileus, inflammatory bowel disease,
General Disorders and Administration Site Conditions:
Estimated 1%-10%: weakness, anasarca, chills
Estimated 0.1%-1%: malaise
Hematologic:
Estimated 1%-10%: pancytopenia, febrile neutropenia
Estimated 0.1%-1%: thrombocythemia, lymphopenia, bone marrow depression, eosinophilia, lymphadenopathy
Estimated 0.01%-0.1%: hemolytic anemia, aplastic anemia
Hepatobiliary:
Estimated 0.1%-1%: hepatitis, jaundice
Estimated 0.01%-0.1%: hepatic failure and hepatic necrosis1
Hypersensitivity:
Estimated 0.01%-0.1%: angioedema
Infections:
Estimated 0.1%-1%: sepsis, herpes simplex, herpes zoster, cellulitis, urinary tract infection, gastroenteritis
Estimated 0.01%-0.1%: fungal infection
Metabolic and Nutritional:
Estimated 1%-10%: weight decreased
Estimated 0.1%-1%: hypophosphatemia, dehydration, gout, increased appetite, decreased appetite, hyperuricemia, hypercalcemia, hyperglycemia, hyponatremia
Estimated 0.01%-0.1%: hyperkalemia, hypomagnesemia
Musculoskeletal:
Estimated 1%-10%: joint swelling
Estimated 0.1%-1%: joint and muscle stiffness
Estimated 0.01%-0.1%: muscular weakness, arthritis
Nervous System/Psychiatric:
Estimated 1%-10%: paresthesia, hypesthesia
Estimated 0.1%-1%: syncope, peripheral neuropathy, somnolence, migraine, memory impairment, libido decreased, sciatica, restless leg syndrome, tremor
Estimated 0.01%-0.1%: increased intracranial pressure1, confusional state, convulsions, optic neuritis
Renal:
Estimated 0.1%-1%: renal failure acute, urinary frequency increased, hematuria, renal pain
Reproductive:
Estimated 0.1%-1%: breast enlargement, menorrhagia, sexual dysfunction, gynecomastia, erectile dysfunction, menstruation irregular, nipple pain, scrotal edema
Respiratory:
Estimated 1%-10%: epistaxis
Estimated 0.1%-1%: pleural effusion
Estimated 0.01%-0.1%: interstitial pneumonitis, pulmonary fibrosis, pleuritic pain, pulmonary hypertension, pulmonary hemorrhage
Special Senses:
Estimated 1%-10%: conjunctivitis, vision blurred, eyelid edema, conjunctival hemorrhage, dry eye
Estimated 0.1%-1%: vertigo, tinnitus, eye irritation, eye pain, orbital edema, scleral hemorrhage, retinal hemorrhage, blepharitis, macular edema, hearing loss
Estimated 0.01%-0.1%: papilledema1, glaucoma, cataract
1Including some fatalities
6.13 Postmarketing Experience
The following additional adverse reactions have been identified during post approval use of Gleevec. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Nervous system disorders: cerebral edema1
Eye disorders: vitreous hemorrhage
Cardiac disorders: pericarditis, cardiac tamponade1
Vascular disorders: thrombosis/embolism, anaphylactic shock
Respiratory, thoracic and mediastinal disorders: acute respiratory failure1, interstitial lung disease
Gastrointestinal disorders: ileus/intestinal obstruction, tumor hemorrhage/tumor necrosis, gastrointestinal perforation1 [ see Warnings and Precautions (5.6) ], diverticulitis
Skin and subcutaneous tissue disorders: lichenoid keratosis, lichen planus, toxic epidermal necrolysis
Musculoskeletal and connective tissue disorders: avascular necrosis/hip osteonecrosis
rhabdomyolysis/myopathy
Reproduction disorders: hemorrhagic corpus luteum/hemorrhagic ovarian cyst
1Including some fatalities
In some cases of bullous dermatologic reactions, including erythema multiforme and Stevens-Johnson syndrome reported during postmarketing surveillance, a recurrent dermatologic reaction was observed upon re-challenge. Several foreign post-marketing reports have described cases in which patients tolerated the reintroduction of Gleevec therapy after resolution or improvement of the bullous reaction. In these instances, Gleevec was resumed at a dose lower than that at which the reaction occurred and some patients also received concomitant treatment with corticosteroids or antihistamines.
|