Capecitabine Drug Information
Generic name: CAPECITABINE
Nucleoside Metabolic Inhibitor [EPC]
Uses of Capecitabine
- Capecitabine tablet is a nucleoside metabolic inhibitor indicated for: Colorectal Cancer
- adjuvant treatment of patients with Stage III colon cancer as a single agent or as a component of a combination chemotherapy regimen. ( 1.1 )
- perioperative treatment of adults with locally advanced rectal cancer as a component of chemoradiotherapy. ( 1.1 )
- treatment of patients with unresectable or metastatic colorectal cancer as a single agent or as a component of a combination chemotherapy regimen. ( 1.1 ) Breast Cancer
- treatment of patients with advanced or metastatic breast cancer as a single agent if an anthracycline-or taxane-containing chemotherapy is not indicated. ( 1.2 )
- treatment of patients with advanced or metastatic breast cancer in combination with docetaxel after disease progression on prior anthracycline-containing chemotherapy. ( 1.2 ) Gastric, Esophageal, or Gastroesophageal Junction Cancer
- treatment of adults with unresectable or metastatic gastric, esophageal, or gastroesophageal junction cancer as a component of a combination chemotherapy regimen. ( 1.3 )
- treatment of adults with HER2-overexpressing metastatic gastric or gastroesophageal junction adenocarcinoma who have not received prior treatment for metastatic disease as a component of a combination regimen. ( 1.3 ) Pancreatic Cancer
- adjuvant treatment of adults with pancreatic adenocarcinoma as a component of a combination chemotherapy regimen. ( 1.4 ) 1.1 Colorectal Cancer Capecitabine tablets are indicated for the: adjuvant treatment of patients with Stage III colon cancer as a single agent or as a component of a combination chemotherapy regimen. perioperative treatment of adults with locally advanced rectal cancer as a component of chemoradiotherapy. treatment of patients with unresectable or metastatic colorectal cancer as a single agent or as a component of a combination chemotherapy regimen. 1.2 Breast Cancer Capecitabine tablets are indicated for the:
- treatment of patients with advanced or metastatic breast cancer as a single agent if an anthracycline- or taxanecontaining chemotherapy is not indicated.
- treatment of patients with advanced or metastatic breast cancer in combination with docetaxel after disease progression on prior anthracycline-containing chemotherapy. 1.3 Gastric, Esophageal, or Gastroesophageal Junction Cancer Capecitabine tablets are indicated for the:
- treatment of adults with unresectable or metastatic gastric, esophageal, or gastroesophageal junction cancer as a component of a combination chemotherapy regimen.
- treatment of adults with HER2-overexpressing metastatic gastric or gastroesophageal junction adenocarcinoma who have not received prior treatment for metastatic disease as a component of a combination regimen. 1.4 Pancreatic Cancer Capecitabine tablets are indicated for the adjuvant treatment of adults with pancreatic adenocarcinoma as a component of a combination chemotherapy regimen.
Dosage & Administration of Capecitabine
| Grade 2 | |
|---|---|
| 1st appearance | Withhold until resolved to grade 0-1. |
| 2nd appearance | 75% |
| 3rd appearance | 50% |
| 4th appearance | Permanently discontinue. |
| Grade 3 | |
| 1st appearance | Withholduntil resolved to grade 0-1. |
| 2nd appearance | 50% |
| 3rd appearance | Permanently discontinue. |
| Grade 4 | |
| 1st appearance | Permanently discontinue OR Withhold until resolved to grade 0-1. |
Side Effects of Capecitabine
- The following clinically significant adverse reactions are described elsewhere in the labeling: Cardiotoxicity [see Warnings and Precautions ( 5.3 )] Diarrhea [see Warnings and Precautions ( 5.4 )] Dehydration [see Warnings and Precautions ( 5.5 )] Renal Toxicity [see Warnings and Precautions ( 5.6 )] Serious Skin Toxicities [see Warnings and Precautions ( 5.7 )] Palmar-Plantar Erythrodysesthesia Syndrome [see Warnings and Precautions ( 5.8 )] Myelosuppression [see Warnings and Precautions ( 5.9 )] Hyperbilirubinemia [see Warnings and Precautions ( 5.10 )]
- Most common adverse reactions in patients who received capecitabine tablets as a single agent for the adjuvant treatment for colon cancer (>30%) were palmar-plantar erythrodysesthesia syndrome, diarrhea, and nausea. ( 6.1 )
- Most common adverse reactions (>30%) in patients with metastatic colorectal cancer who received capecitabine tablets as a single agent were anemia, diarrhea, palmar-plantar erythrodysesthesia syndrome, hyperbilirubinemia, nausea, fatigue, and abdominal pain. ( 6.1 )
- Most common adverse reactions (>30%) in patients with metastatic breast cancer who received capecitabine tablets with docetaxel were diarrhea, stomatitis, palmar-plantar erythrodysesthesia syndrome, nausea, alopecia, vomiting, edema, and abdominal pain. ( 6.1 )
- Most common adverse reactions (>30%) in patients with metastatic breast cancer who received capecitabine tablets as a single agent were lymphopenia, anemia, diarrhea, handand- foot syndrome, nausea, fatigue, vomiting, and dermatitis. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Dr. Reddy’s Laboratories Inc., at 1-888-375-3784 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience 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. Adjuvant Treatment of Colon Cancer Single Agent The safety of capecitabine tablets as a single agent was evaluated in patients with Stage III colon cancer in X-ACT [see Clinical Studies (14.1)]. Patients receivedcapecitabine tablets 1,250 mg/m 2 orally twice daily for the first 14 days of a 21-day cycle (N=995) or leucovorin 20 mg/m 2 intravenously followed by fluorouracil 425 mg/m 2 as an intravenous bolus on days 1 to 5 of each 28-day cycle (N=974). Among patients who received capecitabine tablets, the median duration of treatment was 5.4 months. Deaths due to all causes occurred in 0.8% of patients who received capecitabine tablets on study or within 28 days of receiving study drug. Permanent discontinuation due to an adverse reaction occurred in 11% of patients who received capecitabine tablets. Most common adverse reactions (>30%) were palmar-plantar erythrodysesthesia syndrome, diarrhea, and nausea. Tables 2 and 3 summarize the adverse reactions and laboratory abnormalities in X-ACT. Table 2 Adverse Reactions (>10%) in Patients Who Received Capecitabine tablets for Adjuvant Treatment of Colon Cancer in X-ACT Adverse Reaction C apecitabine Tablets (N=995) Fluorouracil + Leucovorin (N=974) All Grades (%) Grade 3 or 4 (%) All Grades (%) Grade 3 or 4 (%) Skin and Subcutaneous Tissue Palmar-plantar erythrodysesthesiasyndrome 60 17 9 <1 Gastrointestinal Diarrhea 47 12 65 14 Nausea 34 2 47 2 Stomatitis 22 2 60 14 Vomiting 15 2 21 2 Abdominal pain 14 3 16 2 General Fatigue 16 <1 16 1 Asthenia 10 <1 10 1 Lethargy 10 <1 9 <1 Clinically relevant adverse reactions in <10% of patients are presented below: Eye: conjunctivitis Gastrointestinal: constipation, upper abdominal pain, dyspepsia General: pyrexia Metabolism and Nutrition : anorexia Nervous System:d izziness, dysgeusia, headache Skin & Subcutaneous Tissue: rash, alopecia, erythema Table 3 Grade 3 or 4 Laboratory Abnormalities (>1%) in Patients Who Received Capecitabine tablets as a Single Agent for Adjuvant Treatment of Colon Cancer in X- ACT Laboratory Abnormality C apecitabine tablets (N=995) Fluorouracil + Leucovorin (N=974) Grade 3 or 4 (%) Grade 3 or 4 (%) Bilirubin increased 20 6 Lymphocytes decreased 13 13 Neutrophils/granulocytes decreased 2.4 26 Calcium decreased 2.3 2.2 Neutrophils decreased 2.2 26 ALT increased 1.6 0.6 Calcium increased 1.1 0.7 Hemoglobin decreased 1 1.2 Platelets decreased 1 0.7 In Combination with Oxaliplatin-Containing Regimens The safety of capecitabine tablets for the perioperative treatment of adults with Stage III colon cancer as a component of a combination chemotherapy regimen was derived from published literature [see Clinical Studies ( 14.1 )]. The safety of capecitabine tablets for the adjuvant treatment of patients with Stage III colon cancer as a component of a combination chemotherapy regimen was similar to those in patients treated with capecitabine tablets as a single agent, with the exception of an increased incidence of neurosensory toxicity. Perioperative Treatment of RectalCancer The safety of capecitabine tablets for the perioperative treatment of adults with locally advanced rectal cancer as a component of chemoradiotherapy was derived from published literature [see Clinical Studies ( 14.1 )]. The safety of capecitabine tablets for the perioperative treatment of adults with locally advanced rectal cancer as a component of chemoradiotherapy was similar to those in patients treated with capecitabine tablets as a single agent, with the exception of an increased incidence of diarrhea. Metastatic Colorectal Cancer Single Agent The safety of capecitabine tablets as a single agent was evaluated in a pooled metastatic colorectal cancer population (Study SO14695 and Study SO14796)[see Clinical Studies ( 14.1 )]. Patients received capecitabine tablets 1,250 mg/m 2 orally twice a day for the first 14 days of a 21-day cycle (N=596) or leucovorin 20 mg/m 2 intravenously followed by fluorouracil 425 mg/m 2 as an intravenous bolus on days 1 to 5 of each 28-day cycle (N=593). Among the patients who received capecitabine tablets, the median duration of treatment was 4.6 months. Deaths due to all causes occurred in 8% of patients who received capecitabine tablets on study or within 28 days of receiving study drug. Permanent discontinuation due to an adverse reaction or intercurrent illness occurred in 13% of patients who received capecitabine tablets. Most common adverse reactions (>30%) were anemia, diarrhea, palmar-plantar erythrodysesthesia syndrome, hyperbilirubinemia, nausea, fatigue, and abdominal pain. Table 4 shows the adverse reactions occurring in this pooled colorectal cancer population. Table 4 Adverse Reactions (>10%) in Patients Who Received Capecitabine tablets in Pooled Metastatic Colorectal Cancer Population (Study SO14695 and Study SO14796) Adverse Reaction C apecitabine tablets (N=596) Fluorouracil + Leucovorin (N=593) All Grades (%) Grade 3 (%) Grade 4 (%) All Grades (%) Grade 3 (%) Grade 4 (%) Blood and Lymphatic System Anemia 80 2 <1 79 1 <1 Neutropenia 13 1 2 46 8 13 Gastrointestinal Diarrhea 55 13 2 61 10 2 Nausea 43 4 – 51 3 <1 Abdominal pain 35 9 <1 31 5 – Vomiting 27 4 <1 30 4 <1 Stomatitis 25 2 <1 62 14 1 Constipation 14 1 <1 17 1 – Gastrointestinal motility disorder 10 <1 – 7 <1 – Oral discomfort 10 – – 10 – – Skin and Subcutaneous Tissue Palmar-plantar erythrodysesthesia syndrome 54 17 NA 6 1 NA Dermatitis 27 1 – 26 1 – Hepatobiliary Hyperbilirubinemia 48 18 5 17 3 3 General Fatigue* 42 4 – 46 4 – Pyrexia 18 1 – 21 2 – Edema 15 1 – 9 1 – Pain 12 1 – 10 1 – Metabolism and Nutrition Decreased appetite 26 3 <1 31 2 <1 Respiratory Thoracic and Mediastinal Dyspnea 14 1 – 10 <1 1 Eye Eye irritation 13 – – 10 <1 – Nervous System Peripheral sensory neuropathy 10 – – 4 – – Headache 10 1 – 7 – – Musculoskeletal Back pain 10 2 – 9 <1 – – Not observed* Includes weakness NA = Not Applicable Clinically relevant adverse reactions in <10% of patients are presented below: Eye: abnormal vision Gastrointestinal: upper gastrointestinal tract inflammatory disorders, gastrointestinal hemorrhage, ileus General: chest pain Infections: viral Metabolism and Nutrition: dehydration Musculoskeletal: arthralgia Nervous System:dizziness (excluding vertigo), insomnia, taste disturbance Psychiatric: mood alteration, depression Respiratory, Thoracic, and Mediastinal:cough, pharyngeal disorder Skin and Subcutaneous Tissue: skin discoloration, alopecia Vascular: venous thrombosis In Combination with Oxaliplatin The safety of capecitabine tablets for the treatment of patients with unresectable or metastatic colorectal cancer as a component of a combination chemotherapy regimen was derived from published literature [see Clinical Studies ( 14.1 )]. The safety of capecitabine tablets for the treatment of patients with unresectable or metastatic colorectal cancer as a component of a combination chemotherapy regimen was similar to those in patients treated with capecitabine tablets as a single agent, with the exception of an increased incidence of peripheral neuropathy. Metastatic Breast Cancer In Combination with Docetaxel The safety of capecitabine tablets in combination with docetaxel was evaluated in patients with metastatic breast cancer in Study SO14999 [see Clinical Studies ( 14.2 )].Patients received capecitabine tablets 1,250 mg/m 2 orally twice daily for the first 14 days of a 21-day cycle with docetaxel 75 mg/m 2 as 1- hour intravenous infusion on day 1 of each 21-day cycle for at least 6 weeks or docetaxel 100 mg/m 2 as a 1-hour intravenous infusion on day 1 of each 21-day cycle for at least 6 weeks. Among patients who received capecitabine tablets, the mean duration of treatment was 4.2 months. Permanent discontinuation due to an adverse reaction occurred in 26% of patients who received capecitabine tablets. Dosage interruptions due to an adverse reaction occurred in 79% of patients who received capecitabine tablets and dosage reductions due to an adverse reaction occurred in 65%. Most common adverse reactions (>30%) were diarrhea, stomatitis, palmar-plantar erythrodysesthesia syndrome, nausea, alopecia, vomiting, edema, and abdominal pain. Table 5 summarizes the adverse reactions in Study SO14999. Table 5 Adverse Reactions (≥10%) in Patients Who Received Capecitabine tablets with Docetaxel for Metastatic Breast Cancer in Study SO14999 Adverse Reaction C apecitabine tablets with Docetaxel (N=251) Docetaxel (N=255) All Grades (%) Grade 3 (%) Grade 4 (%) All Grades (%) Grade 3 (%) Grade 4 (%) Gastrointestinal Diarrhea 67 14 <1 48 5 <1 Stomatitis 67 17 <1 43 5 – Nausea 45 7 – 36 2 – Vomiting 35 4 1 24 2 – Abdominal pain 30 3 <1 24 2 – Constipation 20 2 – 18 – – Dyspepsia 14 – – 8 1 – Skin and Subcutaneous Tissue Palmar-plantar erythrodysesthesia syndrome 63 24 NA 8 1 NA Alopecia 41 6 – 42 7 – Nail disorder 14 2 – 15 – – Cardiac Edema 33 <2 – 34 <3 1 General Pyrexia 28 2 – 34 2 – Asthenia 26 4 <1 25 6 – Fatigue 22 4 – 27 6 – Weakness 16 2 – 11 2 – Pain in Limb 13 <1 – 13 2 – Blood and Lymphatic System Neutropenic fever 16 3 13 21 5 16 Nervous System Taste disturbance 16 <1 – 14 <1 – Headache 15 3 – 15 2 – Paresthesia 12 <1 – 16 1 – Dizziness 12 – – 8 <1 – Musculoskeletal and Connective Tissue Arthralgia 15 2 – 24 3 – Myalgia 15 2 – 25 2 – Back Pain 12 <1 – 11 3 – Respiratory, Thoracic and Mediastinal Dyspnea 14 2 <1 16 2 – Cough 13 1 – 22 <1 – Sore Throat 12 2 – 11 <1 – Metabolism and Nutrition Anorexia 13 <1 – 11 <1 – Appetite decreased 10 – – 5 – – Dehydration 10 2 – 7 <1 <1 Eye Lacrimation increased 12 – – 7 <1 – – Not observed NA = Not Applicable Clinically relevant adverse reactions in <10% of patients are presented below: Blood and Lymphatic System: agranulocytosis, prothrombin decreased Cardiac: supraventricular tachycardia Eye: conjunctivitis, eye irritation Gastrointestinal: ileus, necrotizing enterocolitis, esophageal ulcer, hemorrhagic diarrhea, dry mouth General: chest pain (non-cardiac), lethargy, pain, influenza-like illness Hepatobiliary: jaundice, abnormal liver function tests, hepatic failure, hepatic coma, hepatotoxicity Immune System: hypersensitivity Infection: hypoesthesia, neutropenic sepsis, sepsis, bronchopneumonia, oral candidiasis, urinary tract infection Metabolism and Nutrition: weight decreased Musculoskeletal and Connective Tissue:bone pain Nervous System: insomnia, peripheral neuropathy, ataxia, syncope, taste loss, polyneuropathy, migraine Psychiatric: depression Renal and Urinary: renal failure Respiratory, Thoracic and Mediastinal: upper respiratory tract infection, pleural effusion, epistaxis, rhinorrhea Skin and Subcutaneous Tissue: pruritis, rash erythematous, dermatitis, nail discoloration, onycholysis Vascular: lymphedema, hypotension, venous phlebitis and thrombophlebitis, postural hypotension, flushing Table 6 summarizes the laboratory abnormalities in this trial. Table 6 Laboratory Abnormalities (≥20%) in Patients Who Received Capecitabine tablets with Docetaxel for Metastatic Breast Cancer in Study SO14999 Laboratory Abnormality C apecitabine tablets with Docetaxel (N=251) Docetaxel (N=255) All Grades (%) Grade 3 (%) Grade 4 (%) All Grades (%) Grade 3 (%) Grade 4 (%) Hematologic Lymphocytopenia 99 48 41 98 44 40 Leukopenia 91 37 24 88 42 33 Neutropenia 86 20 49 87 10 66 Anemia 80 7 3 83 5 <1 Thrombocytopenia 41 2 1 23 1 2 Hepatobiliary Hyperbilirubinemia 20 7 2 6 2 2 Single Agent The safety of capecitabine tablets as a single agent was evaluated in patients with metastatic breast cancer in Study SO14697 [see Clinical Studies ( 14.2 )]. Patients received capecitabine tablets 1,250 mg/m 2 orally twice daily for the first 14 days of a 21-day cycle. The mean duration of treatment was 3.7 months. Permanent discontinuation due to an adverse reaction or intercurrent illness occurred in 8% of patients. Most common adverse reactions (>30%) were lymphopenia, anemia, diarrhea, hand-and-foot syndrome, nausea, fatigue, vomiting, and dermatitis. Table 7 summarizes the adverse reactions in Study SO14697. Table 7 Adverse Reactions (>10%) in Patients Who Received Capecitabine Tablets for Metastatic Breast Cancer in Study SO14697 Adverse Reaction C apecitabine Tablets (n=162) All Grades (%) Grade 3 (%) Grade 4 (%) Blood and Lymphatic System Lymphopenia 94 44 15 Anemia 72 3 1 Neutropenia 26 2 2 Thrombocytopenia 24 3 1 Gastrointestinal Diarrhea 57 12 3 Nausea 53 4 – Vomiting 37 4 – Stomatitis 24 7 – Abdominal pain 20 4 – Constipation 15 1 – Skin and Subcutaneous Tissue Hand-and-foot syndrome 57 11 NA Dermatitis 37 1 – General Fatigue 41 8 – Pyrexia 12 1 – Metabolism and Nutrition Anorexia 23 3 – Hepatobiliary Hyperbilirubinemia 22 9 2 Nervous System Paresthesia 21 1 – Eye Eye irritation 15 – – – = Not observed NA = Not Applicable Pooled SafetyPopulation Clinically relevant adverse reactions in <10% of patients who received capecitabine tablets as a single agent are presented below. Blood & Lymphatic System: leukopenia, coagulation disorder, bone marrow depression, pancytopenia Cardiac: tachycardia, bradycardia, atrial fibrillation, myocarditis, edema Ear: vertigo Eye: conjunctivitis Gastrointestinal: abdominal distension, dysphagia, proctalgia, gastric ulcer, ileus, gastroenteritis, dyspepsia General: chest pain, influenza-like illness, hot flushes, pain, thirst, fibrosis, hemorrhage, edema, pain in limb Hepatobiliary: hepatic fibrosis, hepatitis, cholestatic hepatitis, abnormal liver function tests Immune System:drug hypersensitivity Infections: bronchitis, pneumonia, keratoconjunctivitis, sepsis, fungal infections Metabolism and Nutrition: cachexia, hypertriglyceridemia, hypokalemia, hypomagnesemia, dehydration Musculoskeletal and Connective Tissue:myalgia, arthritis, muscleweakness Nervous System: insomnia, ataxia, tremor, dysphasia, encephalopathy, dysarthria, impaired balance, headache, dizziness Psychiatric: depression, confusion Renal and Urinary: renal impairment Respiratory, Mediastinal and Thoracic: cough, epistaxis, respiratory distress, dyspnea Skin and Subcutaneous Tissue:nail disorder, sweating increased, photosensitivity reaction, skin ulceration, pruritus, radiation recall syndrome Vascular: hypotension, hypertension, lymphedema, pulmonary embolism Unresectable or Metastatic Gastric, Esophageal, or Gastroesophageal Junction Cancer The safety of capecitabine tablets for the treatment of adults with unresectable or metastatic gastric, esophageal, or gastroesophageal junction cancer as a component of a combination chemotherapy regimen was derived from published literature [see Clinical Studies ( 14.3 )]. The safety of capecitabine tablets for the treatment of adults with unresectable or metastatic gastric, esophageal, or gastroesophageal junction cancer as a component of a combination chemotherapy regimen was consistent with the known safety profile of capecitabine tablets. The safety of capecitabine tablets for the treatment of patients with HER2-overexpressing metastatic gastric or gastroesophageal junction adenocarcinoma who have not received prior treatment for metastatic disease as a component of a combination regimen was derived from the published literature [see Clinical Studies ( 14.3 )]. The safety of capecitabine tablets for the treatment of patients with HER2-overexpressing metastatic gastric or gastroesophageal junction adenocarcinoma was consistent with the known safety profile of capecitabine tablets. Pancreatic Cancer The safety of capecitabine tablets for the adjuvant treatment of adults with pancreatic adenocarcinoma as a component of a combination chemotherapy regimen was derived from the published literature [see Clinical Studies ( 14.4 )]. The safety of capecitabine tablets for the adjuvant treatment of adults with pancreatic adenocarcinoma as a component of a combination chemotherapy regimen was consistent with the known safety profile of capecitabine tablets. 6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of capecitabine tablets. 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. Eye: lacrimal duct stenosis, corneal disorders including keratitis Hepatobiliary: hepatic failure Immune System Disorders: angioedema Nervous System: toxic leukoencephalopathy Renal & Urinary: acute renal failure secondary to dehydration including fatal outcome Skin & Subcutaneous Tissue: cutaneous lupus erythematosus, severe skin reactions such as Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis (TEN), persistent or severe PPES can eventually lead to loss of fingerprints
Warnings & Cautions for Capecitabine
- Cardiotoxicity : May be more common in patients with a prior history of coronary artery disease. Withhold capecitabine tablets for cardiotoxicity as appropriate. The safety of resumption of capecitabine tablets in patients with cardiotoxicity that has resolved has not been established. ( 2.5 , 5.3 )
- Diarrhea : Withhold capecitabine tablets and then resume at same or reduced dose, or permanently discontinue, based on severity and occurrence. ( 2.5 , 5.4 )
- Dehydration : Optimize hydration before starting capecitabine tablets. Monitor hydration status and kidney function at baseline and as clinically indicated. Withhold capecitabine tablets and then resume at same or reduced dose, or permanently discontinue, based on severity and occurrence. ( 2.5 , 5.5 )
- Renal Toxicity : Monitor renal function at baseline and as clinically indicated. Optimize hydration before starting capecitabine tablets. Withhold capecitabine tablets and then resume at same or reduced dose, or permanently discontinue, based on severity and occurrence. ( 2.5 , 5.6 )
- Serious Skin Toxicities : Monitor for new or worsening serious skin reactions. Permanently discontinue capecitabine tablets in patients who experience a severe cutaneous adverse reaction. ( 5.7 )
- Palmar-Plantar Erythrodysesthesia Syndrome : Withhold capecitabine tablets then resume at same or reduced dose, or permanently discontinue, based on severity and occurrence. ( 2.5 , 5.8 )
- Myelosuppression : Monitor complete blood count at baseline and before each cycle. capecitabine tablets is not recommended in patients with baseline neutrophil counts <1.5 x 10 9 /L or platelet counts <100 x 10 9 /L. For grade 3 or 4 myelosuppression, withhold capecitabine tablets and then resume at same or reduced dose, or permanently discontinue, based on occurrence. ( 2.5 , 5.9 )
- Hyperbilirubinemia : Patients with Grade 3-4 hyperbilirubinemia may resume treatment once the event is Grade 2 or less (<3 x ULN), using the percent of current dose as shown in column 3 of Table 1 ( 2.5 , 5.10 ) ]
- Embryo-Fetal Toxicity : Can cause fetal harm. Advise patients of the potential risk to a fetus and to use effective contraception. ( 5.11 , 8.1 , 8.3 ) 5.1 Serious Adverse Reactions or Death from Dihydropyrimidine Dehydrogenase (DPD) Deficiency Patients with certain homozygous or compound heterozygous variants in the DPYD gene known to result in complete or near complete absence of DPD activity (complete DPD deficiency) are at increased risk for acute early-onset toxicity and serious, including fatal, adverse reactions due to capecitabine tablets (e.g., mucositis, diarrhea, neutropenia, and neurotoxicity). Patients with partial DPD activity (partial DPD deficiency) may also have increased risk of serious, or fatal, adverse reactions. Prior to initiating capecitabine tablets, test patients for genetic variants of the DPYD gene unlessimmediate treatment is necessary [see Clinical Pharmacology (12.5)]. Serious adverse reactions may still occur even if no DPYD variants are identified. Avoid use of capecitabine tablets in patients with certain homozygous or compound heterozygous DPYD variants that result in complete DPD deficiency. Withhold or permanently discontinue capecitabine tablets based on clinical assessment of the onset, duration, and severity of adverse reactions in patients with evidence of acute early-onset orunusually severe reactions. No capecitabine tablets dose has been proven safe for patients with complete DPD deficiency. For patients with partial DPD deficiency, individualize the dosage and modify based on tolerability and intent of treatment. An FDA-authorized test for the detection of genetic variants of the DPYD gene to identifypatients at risk of serious adverse reactions with capecitabine tablets treatment is not currently available. Currently available tests used to identify DPYD variants may vary in accuracy and design (e.g., which DPYD variant(s) they identify). 5.2 Increased Risk of Bleeding With Concomitant Use of Vitamin K Antagonists Altered coagulation parameters and/or bleeding, including death, have been reported in patients taking capecitabine tablets concomitantly with vitamin K antagonists, such as warfarin. Clinically significant increases in PT and INR have been reported in patients who were on stable doses of oral vitamin K antagonists at the time capecitabine tablets was introduced. These events occurred within several days and up to several months after initiating capecitabine tablets and, in a few cases, within 1 month after stopping capecitabine tablets. These events occurred in patients with and without liver metastases. Monitor INR more frequently and adjust the dose of the vitamin K antagonist as appropriate [see Drug Interactions (7.1) ]. 5.3 Cardiotoxicity Cardiotoxicity can occur with capecitabine tablets. Myocardial infarction/ischemia, angina, dysrhythmias, cardiac arrest, cardiac failure, sudden death, electrocardiographic changes, and cardiomyopathy have been reported with capecitabine tablets. These adverse reactions may be more common in patients with a prior history of coronary artery disease. Withhold capecitabine tablets for cardiotoxicity as appropriate [see Dosage and Administration ( 2.5 )]. The safety of resumption of capecitabine tablets in patients with cardiotoxicity that has resolved have not been established. 5.4 Diarrhea Diarrhea, sometimes severe, can occur with capecitabine tablets. In 875 patients with metastatic breast or colorectal cancer who received capecitabine tablets as a single agent, the median time to first occurrence of grade 2 to 4 diarrhea was 34 days (range: 1 day to 1 year). The median duration of grade 3 to 4 diarrhea was 5 days.Withhold capecitabine tablets and then resume at same or reduced dose or permanently discontinue based on severity and occurrence [see Dosage and Administration ( 2.5 ) ]. 5.5 Dehydration Dehydration can occur with capecitabine tablets. Patients with anorexia, asthenia, nausea, vomiting, or diarrhea may be at an increased risk of developing dehydration with capecitabine tablets. Optimize hydration before startingcapecitabine tablets. Monitor hydration status and kidney function at baseline and as clinically indicated. Withhold capecitabine tablets and then resume at same or reduced dose, or permanently discontinue, based on severity and occurrence [see Dosage and Administration (2.5) ]. 5.6 Renal Toxicity Serious renal failure, sometimes fatal, can occur with capecitabine tablets. Renal impairment or coadministration of capecitabine tablets with other products known to cause renal toxicity may increase the risk of renal toxicity [see Drug Interactions (7.3)]. Monitor renal function at baseline and as clinically indicated. Optimize hydration before starting capecitabine tablets. Withhold capecitabine tablets and then resume at same or reduced dose, or permanently discontinue, based on severity and occurrence [see Dosage and Administration ( 2.5 )]. 5.7 Serious Skin Toxicities Severe cutaneous adverse reactions (SCARs), including Stevens-Johnson Syndrome and toxic epidermal necrolysis (TEN), which can be fatal, can occur with capecitabine tablets [see Adverse Reactions ( 6.2 )]. Monitor for new or worsening serious skin reactions. Permanently discontinue capecitabine tablets for severe cutaneous adverse reactions. 5.8 Palmar-Plantar Erythrodysesthesia Syndrome Palmar-plantar erythrodysesthesia syndrome (PPES) can occur with capecitabine tablets. In patients with metastatic breast or colorectal cancer who received capecitabine tablets as a single agent, the median time to onset of grades 1 to 3 PPES was 2.6 months (range: 11 days to 1 year). Withhold capecitabine tablets and then resume at same or reduced dose or permanently discontinue based on severity and occurrence [see Dosage and Administration ( 2.5 ) ]. 5.9 Myelosuppression Myelosuppression can occur with capecitabine tablets. In the 875 patients with metastatic breast or colorectal cancer who received capecitabine tablets as a single agent, 3.2% had grade 3 or 4 neutropenia, 1.7% had grade 3 or 4 thrombocytopenia, and 2.4% had grade 3 or 4 anemia. In the 251 patients with metastatic breast cancer who received capecitabine tablets with docetaxel, 68% had grade 3 or 4 neutropenia, 2.8% had grade 3 or 4 thrombocytopenia, and 10% had grade 3 or 4 anemia. Necrotizing enterocolitis (typhlitis) has been reported. Consider typhlitis in patients with fever, neutropenia and abdominal pain. Monitor complete blood count at baseline and before each cycle. Capecitabine tablets is not recommended if baseline neutrophil count <1.5 x 10 9 /L or platelet count <100 x 10 9 /L. For grade 3 to 4 myelosuppression, withhold capecitabine tablets and then resume at same or reduced dose, or permanently discontinue, based on occurrence [see Dosage and Administration ( 2.5 )]. 5.10 Hyperbilirubinemia Hyperbilirubinemia can occur with capecitabine tablets. In the 875 patients with metastatic breast or colorectal cancer who received capecitabine tablets as a single agent, grade 3 hyperbilirubinemia occurred in 15% of patients and grade 4 hyperbilirubinemia occurred in 3.9%. Of the 566 patients who had hepatic metastases at baseline and the 309 patients without hepatic metastases at baseline, grade 3 or 4 hyperbilirubinemia occurred in 23% and 12%, respectively. Of these 167 patients with grade 3 or 4 hyperbilirubinemia, 19% had postbaseline increased alkaline phosphatase and 28% had postbaseline increased transaminases at any time (not necessarily concurrent). The majority of these patients with increased transaminases or alkaline phosphatase had liver metastases at baseline. In addition, 58% and 35% of the 167 patients with grade 3 or 4 hyperbilirubinemia had pre- and postbaseline increased alkaline phosphatase or transaminases (grades 1 to 4), respectively. Only 8% (n=13) and 3% (n=5) had grade 3 or 4 increased alkaline phosphatase or transaminases. In the 596 patients who received capecitabine tablets for metastatic colorectal cancer, the incidence of grade 3 or 4 hyperbilirubinemia was similar to that observed for the pooled population of patients with metastatic breast and colorectal cancer. The median time to onset for grade 3 or 4 hyperbilirubinemia was 64 days and median total bilirubin increased from 8 µm/L at baseline to 13 µm/L during treatment with capecitabine tablets. Of the 136 patients with grade 3 or 4 hyperbilirubinemia, 49 patients had grade 3 or 4 hyperbilirubinemia as their last measured value, of which 46 had liver metastases at baseline. In the 251 patients with metastatic breast cancer who receivedcapecitabine tablets with docetaxel, grade 3 hyperbilirubinemia occurred in 7% and grade 4 hyperbilirubinemia occurred in 2%. Withhold capecitabine tablets and then resume at a same or reduced dose, or permanently discontinue, based on occurrence [see Dosage and Administration (2.5) ]. Patients with Grade 3-4 hyperbilirubinemia may resume treatment once the event is Grade 2 or less than three times the upper limit of normal, using the percent of current dose as shown in Table 1 [see Dosage and Administration ( 2.5 )]. 5.11 Embryo-Fetal Toxicity Based on findings from animal reproduction studies and its mechanism of action, capecitabine tablets can cause fetal harm when administered to a pregnant woman. Insufficient data is available on capecitabine tablets use in pregnant women to evaluate a drug-associated risk. In animal reproduction studies, administration of capecitabine to pregnant animals during the period of organogenesis caused embryolethality and teratogenicity in mice and embryolethality in monkeys at 0.2 and 0.6 times the human exposure (AUC) in patients who received a dosage of 1,250 mg/m 2 twice daily, respectively. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with capecitabine tablets and for 6 months following the last dose. Advise males with female partners of reproductive potential to use effective contraception during treatment with capecitabine tablets and for 3 months following the last dose [see Use in Specific Populations ( 8.1 , 8.3 ) 5.12 Eye Irritation, Skin Rash, and Other Adverse Reactions from Exposure to Crushed Tablets In instances of exposure to crushed capecitabine tablets, the following adverse reactions have been reported: eye irritation and swelling, skin rash, diarrhea, paresthesia, headache, gastric irritation, vomiting and nausea. Advise patients not to cut or crush tablets If capecitabine tablets tablets must be cut or crushed, this should be done by a professional trained in safe handling of cytotoxic drugs using appropriate equipment and safety procedures [see Dosage and Administration ( 2.7 )]. The safety and effectiveness have not been established for the administration of crushed capecitabine tablets.
Drug Interactions with Capecitabine
- Allopurinol: Avoid concomitant use of allopurinol with capecitabine tablets. ( 7.1 )
- Leucovorin : Closely monitor for toxicities when capecitabine tablets is coadministered with leucovorin. ( 7.1 )
- CYP2C9 substrates : Closely monitor for adverse reactions when CYP2C9 substrates are coadministered with capecitabine tablets. ( 7.2 )
- Vitamin K antagonists : Monitor INR more frequently and dose adjust oral vitamin K antagonist as appropriate
- Phenytoin : Closely monitor phenytoin levels in patients taking capecitabine tablets concomitantly with phenytoin and adjust the phenytoin dose as appropriate. ( 7.2 )
- Nephrotoxic drugs : Closely monitor for signs of renal toxicity when capecitabine tablets is used concomitantly with nephrotoxic drugs. ( 7.3 ) 7.1 Effect of Other Drugs on Capecitabine Tablets Allopurinol Concomitant use with allopurinol may decrease concentration of capecitabine’s active metabolites [see Clinical Pharmacology ( 12.3 )], which may decrease efficacy. Avoid concomitant use of allopurinol with capecitabine tablets. Leucovorin The concentration of fluorouracil is increased and its toxicity may be enhanced by leucovorin, folic acid, or folate analog products. Deaths from severe enterocolitis, diarrhea, and dehydration have been reported in elderly patients receiving weekly leucovorin and fluorouracil. Instruct patients not to take products containing folic acid or folate analog products unless directed to do so by their healthcare provider. 7.2 Effect of Capecitabine Tablets on Other Drugs CYP2C9 Substrates Capecitabine tablets increased exposure of CYP2C9 substrates [see Clinical Pharmacology (12.3) ], which may increase the risk of adverse reactions related to these substrates. Closely monitor for adverse reactions of CYP2C9 substrates where minimal concentration changes may lead to serious adverse reactions when used concomitantly with capecitabine tablets (e.g., anticoagulants, antidiabetic drugs). Vitamin K Antagonists Capecitabine tablets increases exposure of vitamin K antagonist [see Clinical Pharmacology (12.3) ], which may alter coagulation parameters and/or bleeding and could result in death [see Warning and Precautions ( 5.1 )]. These events may occur within days of treatment initiation and up to 1 month after discontinuation of capecitabine tablets. Monitor INR more frequently and refer to the prescribing information of oral vitamin K antagonist for dosage adjustment, as appropriate, when capecitabine tablets is used concomitantly with vitamin K antagonist. Phenytoin Capecitabine tablets may increases exposure of phenytoin, which may increase the risk of adverse reactions related to phenytoin. Closely monitor phenytoin levels and refer to the prescribing information of phenytoin for dosage adjustment, as appropriate, when capecitabine tablets is used concomitantly with phenytoin. 7.3 Nephrotoxic Drugs Due of the additive pharmacologic effect, concomitant use of capecitabine tablets with other drugs known to cause renal toxicity may increase the risk of renal toxicity [see Warnings and Precautions (5.6)]. Closely monitor for signs of renal toxicity when capecitabine tablets is used concomitantly with nephrotoxic drugs (e.g. platinum salts, irinotecan, methotrexate, intravenous bisphosphonates).
Pregnancy Safety for Capecitabine
Pregnancy Risk Summary Based on findings in animal reproduction studies and its mechanism of action, capecitabine tablets can cause fetal harm when administered to a pregnant woman. Available human data with capecitabine tablets use in pregnant women is not sufficient to inform the drug-associated risk. In animal reproduction studies, administration of capecitabine to pregnant animals during the period of organogenesis caused embryolethality and teratogenicity in mice and embryolethality in monkeys at 0.2 and 0.6 times the exposure (AUC) in patients receiving the recommended dose of 1,250 mg/m 2 twice daily, respectively (see Data). Advise pregnant women of the potential risk to a fetus.
The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.
Data Animal Data Oral administration of capecitabine to pregnant mice during the period of organogenesis at a dose of 198 mg/kg/day caused malformations and embryo lethality. In separate pharmacokinetic studies, this dose in mice produced 5’-DFUR AUC values that were approximately 0.2 times the AUC values in patients administered the recommended daily dose. Malformations in mice included cleft palate, anophthalmia, microphthalmia, oligodactyly, polydactyly, syndactyly, kinky tail and dilation of cerebral ventricles.
Oral administration of capecitabine to pregnant monkeys during the period of organogenesis at a dose of 90 mg/kg/day, caused fetal lethality. This dose produced 5’-DFUR AUC values that were approximately 0.6 times the AUC values in patients administered the recommended daily dose.
Pediatric Use of Capecitabine
Pediatric Use The safety and effectiveness of capecitabine tablets in pediatric patients have not been established. Safety and effectiveness were assessed, but not established in two single arm studies in 56 pediatric patients aged 3 months to <17 years with newly diagnosed gliomas. In both trials, pediatric patients received an investigational pediatric formulation of capecitabine concomitantly with and following completion of radiation therapy (total dose of 5580 cGy in 180 cGy fractions). The relative bioavailability of the investigational formulation to capecitabine tablets was similar.
The adverse reaction profile was consistent with that of adults, with the exception of laboratory abnormalities which occurred more commonly in pediatric patients. The most frequently reported laboratory abnormalities (per-patient incidence ≥ 40%) were increased ALT (75%), lymphocytopenia (73%), hypokalemia (68%), thrombocytopenia (57%), hypoalbuminemia (55%), neutropenia (50%), low hematocrit (50%), hypocalcemia (48%), hypophosphatemia (45%) and hyponatremia (45%).
Contraindications for Capecitabine
Capecitabine tablets are contraindicated in patients with history of severe hypersensitivity reaction to fluorouracil or capecitabine. History of severe hypersensitivity reactions to fluorouracil or capecitabine
Overdosage Information for Capecitabine
Administer uridine triacetate within 96 hours for management of capecitabine tablets overdose. Although no clinical experience using dialysis as a treatment for capecitabine tablets overdose has been reported, dialysis may be of benefit in reducing circulating concentrations of 5’-DFUR, a low– molecular-weight metabolite of the parent compound.
Clinical Studies of Capecitabine
Colorectal Cancer Adjuvant Treatment of Colon Cancer Single Agent
The efficacy of capecitabine tablets was evaluated in X-ACT (NCT00009737), a multicenter, randomized, controlled clinical trial. Eligible patients were between 18 and 75 years of age with histologically-confirmed Dukes’ Stage C colon cancer with at least one positive lymph node and to have undergone (within 8 weeks prior to randomization) complete resection of the primary tumor without macroscopic or microscopic evidence of remaining tumor. Patients were also required to have no prior cytotoxic chemotherapy or immunotherapy (except steroids) and have an ECOG performance status of 0 or 1 (KPS >70%), ANC >1.5x10 9 /L, platelets >100x10 9 /L, serum creatinine <
ULN, total bilirubin <1.5
ULN, AST/ALT <
ULN and
CEA within normal limits at time of randomization. Patients (n=1987) were randomized to capecitabine tablets 1,250 mg/m 2 orally twice daily for the first 14 days of a 21-day cycle for a total of 8 cycles or fluorouracil 425 mg/m 2 and leucovorin 20 mg/m 2 intravenously on days 1 to 5 of each 28-day cycle for a total of 6 cycles. The capecitabine tablets dose was reduced in patients with baseline CLcr of 30 to 50 mL/min.
The major efficacy outcome measure was disease-free survival (DFS). The baseline demographics are shown in Table 9. The baseline characteristics were well- balanced between arms. Table 9 Baseline Demographics in X-ACT C apecitabine tablets (N=1004) Fluorouracil + Leucovorin (N=983) Age (median, years) 62 63 Range (25-80) (22-82) Sex Male, % 54 54 Female, % 46 46 ECOG Performance Status 0, % 85 85 1, % 15 15 Staging – Primary Tumor PT1, % 1
PT2, % 9 9 PT3, % 76 76 PT4, % 14 0
Other, % 0.1 14 Staging – Lymph Node pN1, % 69 71 pN2, % 30 29 Other, % 0.4
Efficacy results are summarized in Table 10 and Figures 1 and 2.
The median follow-up at the time of the analysis was 6.9 years. Because the upper 2-sided 95% confidence limit of hazard ratio for DFS was less than 1.20,capecitabine tablets was non-inferior to fluorouracil + leucovorin. The choice of the non-inferiority margin of 1.20 corresponds to the retention of approximately 75% of the fluorouracil + leucovorin effect on DFS. The hazard ratio for capecitabine tablets compared to fluorouracil + leucovorin with respect to overall survival was 0.86 (95% CI 0.74, 1.01). The 5- year overall survival rates were 71% for capecitabine tablets and 68% for fluorouracil + leucovorin.
T able 10 Efficacy Results in X-ACT a (All Randomized Population) Efficacy Parameters C apecitabine tablets (N=1004) Fluorouracil + Leucovorin (N=983) 5-year Disease-free Survival Rate b 59% 55% Hazard Ratio 0.88 (95% CI) p-value c p = 0.068 a Approximately 93.4% had 5-year DFS information b Based on Kaplan-Meier estimates c Wald chi-square test Figure 1 Kaplan-Meier Estimates of Disease-Free Survival in X-ACT (All Randomized Population) Figure 2 Kaplan-Meier Estimates of Overall Survival in X-ACT (All Randomized Population) In Combination with Oxaliplatin-Containing Regimens The efficacy of capecitabine tablets in combination with oxaliplatin for the adjuvant treatment of patients with Stage III colon cancer as a component of a combination chemotherapy regimen was derived from studies in the published literature, including NO16968, a multicenter, open-label, randomized trial, where the major efficacy outcome measure was disease free survival. Perioperative Treatment of Rectal Cancer The efficacy of capecitabine tablets for the perioperative treatment of adults with locally advanced rectal cancer as a component of chemoradiotherapy was derived from studies in the published literature, including Rektum-III, a randomized, open-label, multicenter, non- inferiority trial, where the major efficacy outcome measure was overall survival. Metastatic Colorectal Cancer The efficacy of capecitabine tablets as a single agent was evaluated in two open-label, multicenter, randomized, controlled clinical trials (Study SO14695 and Study SO14796). Eligible patients received first-line treatment for metastatic colorectal cancer.
Patients were randomized to capecitabine tablets 1,250 mg/m 2 twice daily for first 14 days of a 21-day cycle or leucovorin 20 mg/m 2 intravenously followed by fluorouracil 425 mg/m 2 as an intravenous bolus on days 1 to 5 of each 28-day cycle. The efficacy outcome measures were overall survival, time to progression and response rate (complete plus partial responses). Responses were defined by the World Health Organization criteria and submitted to a blinded independent review committee (IRC). Differences in assessments between the investigator and IRC were reconciled by the sponsor, blinded to treatment arm, according to a specified algorithm. Survival was assessed based on a non- inferiority analysis.
The baseline demographics are shown in Table 11. Table 11 Baseline Demographics for Study SO14695 and Study SO14796 Study SO14695 Study SO14796 C apecitabine tablets (N=302) Fluorouracil + Leucovorin (N=303) C apecitabine tablets (N=301) Fluorouracil + Leucovorin (N=301) Age (median, years) 64 63 64 64 Range (23-86) (24-87) (29-84) (36-86) Sex Male, % 60 65 57 57 Female, % 40 35 43 43 Karnofsky PS (median) 90 90 90 90 Range (70-100) (70-100) (70-100) (70-100) Colon, % 74 77 66 65 Rectum, % 26 23 34 35 Prior radiation therapy, % 17 21 14 14 Prior adjuvant fluorouracil, % 28 36 19 14 Efficacy results for Study SO14695 and Study SO14796 are shown in Table 12 and Table 13. Table 12 Efficacy Results for First-Line Treatment of Metastatic Colorectal Cancer (Study SO14695) C apecitabine tablets (N=302) Fluorouracil + Leucovorin (N=303) OverallResponse Rate % (95% CI) 21 11 p-value 0.0014 Time to Progression Median, months (95%CI) 4.2
Hazard Ratio 0.99 95% CI Overall Survival Median, months (95%CI) 12.5 13.4
Hazard Ratio 1.00 95% CI Table 13 Efficacy Results for First-Line Treatment of Metastatic Colorectal Cancer (Study SO14796) C apecitabine tablets (N=301) Fluorouracil + Leucovorin (N=301) OverallResponse Rate % (95% CI) 21 14 p-value 0.027 Time to Progression Median, months (95%CI) 4.5
Hazard Ratio 0.97 95% CI Overall Survival Median, months (95%CI) 13.3 12.1
Hazard Ratio 0.92 95% CI Efficacy results of the pooled population from Study SO14695 and Study SO14796 are shown in Figure 3. Statistical analyses were performed to determine the percent of the survival effect of fluorouracil + leucovorin that was retained by capecitabine tablets. The estimate of the survival effect of fluorouracil + leucovorin was derived from a meta-analysis of ten randomized studies from the published literature comparing fluorouracil to regimens of fluorouracil + leucovorin that were similar to the control arms used in these Studies SO14695 and SO14796. The method for comparing the treatments was to examine the worst case (95% confidence upper bound) for the difference between fluorouracil + leucovorin and capecitabine tablets, and to show that loss of more than 50% of the fluorouracil + leucovorin survival effect was ruled out. It was demonstrated that the percent of the survival effect of fluorouracil + leucovorin maintained was at least 61% for Study SO14796 and 10% for Study SO14695. The pooled result is consistent with a retention of at least 50% of the effect of fluorouracil + leucovorin.
It should be noted that these values for preserved effect are based on the upper bound of the fluorouracil + leucovorin vs capecitabine tablets difference. Figure 3 Kaplan-Meier Curve for Overall Survival of Pooled Data (Studies SO14695 and SO14796) In Combination with Oxaliplatin The efficacy of capecitabine tablets for the treatment of patients with unresectable or metastatic colorectal cancer as a component of a combination chemotherapy regimen was derived from studies in the published literature, including NO16966, a randomized, non-inferiority, 2x2 factorial trial, where the major efficacy outcome measure was progression free survival.
Metastatic Breast Cancer
In Combination With Docetaxel The efficacy of capecitabine tablets in combination with docetaxel was evaluated in an open-label, multicenter, randomized trial (Study SO14999). Eligible patients had metastatic breast cancer resistant to, or recurring during or after an anthracycline-containing therapy, or relapsing during or recurring within 2 years of completing an anthracycline-containing adjuvant therapy were enrolled. Patients were randomized to capecitabine tablets 1,250 mg/m 2 twice daily for the first 14 days of a 21-day cycle and docetaxel 75 mg/m 2 as a 1-hour intravenous infusion on day 1 of day of a 21- day cycle or docetaxel 100 mg/m 2 as a 1-hour intravenous infusion on day 1 of a 21-day cycle. The efficacy outcome measures were time to disease progression, overall survival, and response rate.
Patient demographics are provided in Table 14. Table 14 Baseline Demographics in Metastatic Breast Cancer (Study SO14999) C apecitabine tablets + Docetaxel (N=255) Docetaxel (N=256) Age (median, years) 52 51 Karnofsky Performance Status (median) 90 90 Site of Disease Lymph nodes, % 47 49 Liver, % 45 48 Bone, % 42 46 Lung, % 37 39 Skin, % 29 29 Prior Chemotherapy Anthracycline 1, % 100 100 Fluorouracil, % 77 74 Paclitaxel, % 10 9 Resistance to an Anthracycline No resistance, % 7 7 Progression on anthracycline therapy, % 26 29 Stable disease after4 cycles of anthracycline therapy, % 16 16 Relapsedwithin 2 yearsof completion of anthracycline-adjuvant therapy, % 31 29 Experienced a brief response to anthracycline therapy, with subsequent progression while on therapy or within 12 months afterlast dose, % 20 20 No. of Prior Chemotherapy Regimens for Treatment of Metastatic Disease 0, % 35 31 1, % 48 53 2, % 17 15 3, % 0 1 1 Includes 10 patients in combination and 18 patients in single agent arms treated with an anthracenedione Efficacy results are shown in Table 15, Figure 4 and Figure 5. Table 15 Efficacy Results in Metastatic Breast Cancer (Study SO14999) Efficacy Parameter C apecitabine tablets + Docetaxel (N=255) Docetaxel (N=256) Time to Disease Progression Median, months 6.1 4.2 95% CI Hazard Ratio 0.643 p-value 0.0001 Overall Survival Median, months 14.5 11.6 95% CI Hazard Ratio 0.775 p-value 0.0126 Response Rate 1 32% 22% 1 The response rate reported represents a reconciliation of the investigator and IRC assessments performed by the sponsor according to a predefined algorithm. Figure 4 Kaplan-Meier Estimates for Time to Disease Progression in Metastatic Breast Cancer (Study SO14999) Figure 5 Kaplan-Meier Estimates of Survival in Metastatic Breast Cancer (Study SO14999) Single Agent The efficacy of capecitabine tablets as a single agent was evaluated in an open-label single-arm trial (Study SO14697). Eligible patients had metastatic breast cancer resistant to both paclitaxel and an anthracycline-containing chemotherapy regimen or resistant to paclitaxel and for whom further anthracycline therapy is not indicated (e.g., patients who have received cumulative doses of 400 mg/m 2 of doxorubicin or doxorubicin equivalents). Resistance was defined as progressive disease while on treatment, with or without an initial response, or relapse within 6 months of completing treatment with an anthracycline-containing adjuvant chemotherapy regimen. Patients received capecitabine tablets 1,255 mg/m 2 orally twice daily for first 14-days of a 21-day treatment cycle.
The major efficacy outcome measure was tumor response rate in patients with measurable disease, with response defined as a ≥50% decrease in sum of the products of the perpendicular diameters of bidimensionally measurable disease for at least 1 month. The baseline demographics are shown in Table 16. Table 16 Baseline Demographics in Metastatic Breast Cancer (Study SO14697) Patients With Measurable Disease (N=135) All Patients (N=162) Age (median, years) 55 56 Karnofsky Performance Status 90 90 No. Disease Sites 1-2, % 32 37 3-4, % 46 43 >5, % 22 21 Dominant Siteof Disease Visceral 1, % 75 68 Soft Tissue, % 22 22 Bone, % 3 10 Prior Chemotherapy Paclitaxel, % 100 100 Anthracycline 2, % 90 91 Fluorouracil, % 81 82 Resistance to Paclitaxel, % 76 77 Resistance to an Anthracycline 2, % 41 41 Resistance to both Paclitaxel and an Anthracycline 2, % 32 31 Lung, pleura, liver, peritoneum 2 Includes 2 patients treated with an anthracenedione Efficacy for Study SO14697 are shown in Table 17 Table 17 Efficacy Results in Metastatic Breast Cancer (StudySO14697) EfficacyParameter Resistance to Both Paclitaxel and an Anthracycline (N=43) Response Rate 1 (95% CI) 25.6% Complete Response 0% Partial Response 1 11% Durationof Response 1 Median, months 2 (Range) 5.1 (2.1-7.7) 1 Includes 2 patients treated with an anthracenedione 2 From date of first response For the subgroup of 43 patients who were doubly resistant, the median time to progression was3.4 months and the median survival was 8.4 months.
The objective response rate in this population was supported by a response rate of 18.5% (1 CR, 24 PRs) in the overall population of 135 patients with measurable disease, who were less resistant to chemotherapy (see Table 15). The median time to progression was 3.0 months and the median survival was 10.1 months.
Gastric, Esophageal, or Gastroesophageal Junction Cancer
The efficacy of capecitabine tablets for treatment of adults with unresectable or metastatic gastric, esophageal, or gastroesophageal junction cancer as a component of a combination chemotherapy regimen was derived from studies in the published literature. capecitabine tablets was evaluated in REAL- 2, a randomized non-inferiority, 2x2 factorial trial, where the major efficacy outcome measure was overall survival, and an additional randomized trial conducted by the North Central Cancer Treatment Group, where the major efficacy outcome measure was objective response rate. The efficacy of capecitabine tablets for the treatment of adults with HER2-overexpressing metastatic gastric or gastroesophageal junction adenocarcinoma who have not received prior treatment for metastatic disease as a component of a combination regimen was derived from studies in the published literature. capecitabine tablets was evaluated in the ToGA trial, an open-label, multicenter, randomized trial where the primary efficacy measure was overall survival.
Pancreatic Cancer
The efficacy of capecitabine tablets for the adjuvant treatment of adults with pancreatic adenocarcinoma as a component of a combination chemotherapy regimen was derived from a study in the published literature. capecitabine tablets was evaluated in ESPAC-4 trial, a two-group, open-label, multicenter, randomized trial, where the major efficacy outcome measure was overall survival.
Drug information sourced from the FDA. This content is for informational purposes only and does not constitute medical advice. Consult a healthcare professional before making any medication decisions.
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