Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
Metastatic Non-Small Cell Lung Cancer
The safety of TABRECTA was evaluated in GEOMETRY mono-1 [see Clinical Studies (14)]. Patients received TABRECTA 400 mg orally twice daily until disease progression or unacceptable toxicity (N = 373). Among patients who received TABRECTA, 37% were exposed for at least 6 months and 22% were exposed for at least one year.
Serious adverse reactions occurred in 53% of patients who received TABRECTA. Serious adverse reactions in ≥ 2% of patients included dyspnea (7%), pneumonia (7%), pleural effusion (4.3%), musculoskeletal pain (3.8%), general physical health deterioration (2.9%), ILD/pneumonitis (2.7%), edema (2.4%), and vomiting (2.4%). Fatal adverse reactions occurred in 0.5% of patients who received TABRECTA, including pneumonitis (0.3%) and death, not otherwise specified (0.3%).
Permanent discontinuation of TABRECTA due to an adverse reaction occurred in 17% of patients. The most frequent adverse reactions (≥ 1%) leading to permanent discontinuation of TABRECTA were ILD/pneumonitis (2.4%), edema (2.4%), fatigue (1.3%), and pneumonia (1.1%).
Dose interruptions due to an adverse reaction occurred in 57% of patients who received TABRECTA. Adverse reactions requiring dosage interruption in > 2% of patients who received TABRECTA included edema, increased blood creatinine, nausea, increased lipase, vomiting, increased ALT, dyspnea, pneumonia, fatigue, increased amylase, increased AST, musculoskeletal pain, abdominal pain, and increased blood bilirubin.
Dose reductions due to an adverse reaction occurred in 26% of patients who received TABRECTA. Adverse reactions requiring dosage reductions in > 2% of patients who received TABRECTA included edema, increased ALT and increased blood creatinine.
The most common adverse reactions (≥ 20%) in patients who received TABRECTA were edema, nausea, musculoskeletal pain, fatigue, vomiting, dyspnea, cough, and decreased appetite.
Table 3 summarizes the adverse reactions in GEOMETRY mono-1.
Table 3: Adverse Reactions (≥ 10%) in Patients Who Received TABRECTA in GEOMETRY mono-1aEdema includes edema peripheral, generalized edema, face edema, edema, localized edema, edema genital, eyelid edema, peripheral swelling, scrotal edema, and penile edema. bMusculoskeletal pain includes arthralgia, back pain, bone pain, musculoskeletal chest pain, musculoskeletal pain, myalgia, neck pain, non-cardiac chest pain, pain in extremity, pain in jaw, spinal pain. cFatigue includes fatigue and asthenia. dPyrexia includes pyrexia and body temperature increased. eCough includes cough, upper airway cough syndrome, and productive cough. fPneumonia includes pneumonia aspiration, pneumonia, pneumonia influenzal, pneumonia bacterial, lower respiratory tract infection, and lung abscess. gRash includes rash, dermatitis acneiform, rash maculo-papular, eczema, erythema multiforme, rash macular, dermatitis, rash erythematous, rash pustular, dermatitis bullous, and rash vesicular. hDizziness includes dizziness, vertigo, and vertigo positional.
|
| Adverse reactions | TABRECTA (N = 373) |
| Grades 1 to 4 (%) | Grades 3 to 4
(%) |
| General disorders and administration-site conditions |
| Edemaa
| 59 | 13 |
| Musculoskeletal painb
| 40 | 4.3 |
| Fatiguec
| 34 | 8 |
| Pyrexiad
| 14 | 0.8 |
| Weight decreased | 11 | 0.5 |
| Gastrointestinal disorders |
| Nausea
| 46 | 2.4 |
| Vomiting
| 28 | 2.4 |
| Constipation
| 19 | 0.8 |
| Diarrhea
| 19 | 0.5 |
| Respiratory, thoracic, and mediastinal disorders |
| Dyspnea | 25 | 7
|
| Coughe
| 21 | 0.5 |
| Pneumoniaf
| 13 | 6 |
| Metabolism and nutrition disorders |
| Decreased appetite | 21 | 1.1 |
| Skin and subcutaneous tissue disorders |
| Rashg
| 13 | 0.5 |
| Nervous system disorders |
| Dizzinessh
| 13 | 0.5 |
Clinically relevant adverse reactions occurring in < 10% of patients treated with TABRECTA included pruritus (including allergic pruritus), ILD/pneumonitis, cellulitis, acute kidney injury (including renal failure), urticaria, and acute pancreatitis.
Table 4 summarizes the laboratory abnormalities in GEOMETRY mono-1.
Table 4: Select Laboratory Abnormalities (≥ 20%) Worsening From Baseline in Patients Who Received TABRECTA in GEOMETRY mono-1| aThe denominator used to calculate the rate varied from 359 to 364 based on the number of patients with a baseline value and at least one post-treatment value.
|
| Laboratory abnormalities | TABRECTAa
|
| Grades 1 to 4 (%) | Grades 3 to 4 (%) |
| Chemistry |
| Decreased albumin | 72 | 1.9 |
| Increased creatinine | 65 | 0.5 |
| Increased alanine aminotransferase | 39 | 9 |
| Increased amylase | 34 | 4.7 |
| Increased alkaline phosphatase | 32 | 0.6 |
| Increased gamma-glutamyltransferase | 30 | 6 |
| Increased lipase | 29 | 9 |
| Increased aspartate aminotransferase | 28 | 6 |
| Decreased phosphate | 26 | 4.4 |
| Increased potassium | 25 | 4.1 |
| Decreased sodium | 24 | 6 |
| Decreased glucose | 23 | 0.3 |
| Hematology |
| Decreased lymphocytes
| 45 | 14 |
| Decreased leukocytes
| 25 | 1.7 |
| Decreased hemoglobin
| 24 | 2.8 |
Other Clinical Trials Experience
The following adverse reactions have been reported following administration of TABRECTA: hypersensitivity and thrombocytopenia.