GEMCITABINE

1 INDICATIONS AND USAGE Gemcitabine Injection is a nucleoside metabolic inhibitor indicated: in combination with carboplatin, for the treatment of advanced ovarian cancer that has relapsed at least 6 months after completion of platinum-based therapy. ( 1.1 ) in combination with paclitaxel, for first-line treatment of metastatic breast cancer after failure of prior anthracycline-containing adjuvant chemotherapy, unless anthracyclines were clinically contraindicated. ( 1.2 ) in combination with cisplatin for the treatment of non-small cell lung cancer. ( 1.3 ) as a single agent for the treatment of pancreatic cancer. ( 1.4 ) 1.1 Ovarian Cancer Gemcitabine Injection in combination with carboplatin is indicated for the treatment of patients with advanced ovarian cancer that has relapsed at least 6 months after completion of platinum-based therapy. 1.2 Breast Cancer Gemcitabine Injection in combination with paclitaxel is indicated for the first-line treatment of patients with metastatic breast cancer after failure of prior anthracycline-containing adjuvant chemotherapy, unless anthracyclines were clinically contraindicated. 1.3 Non-Small Cell Lung Cancer Gemcitabine Injection is indicated in combination with cisplatin for the first-line treatment of patients with inoperable, locally advanced (Stage IIIA or IIIB), or metastatic (Stage IV) non-small cell lung cancer (NSCLC). 1.4 Pancreatic Cancer Gemcitabine Injection is indicated as first-line treatment for patients with locally advanced (nonresectable Stage II or Stage III) or metastatic (Stage IV) adenocarcinoma of the pancreas. Gemcitabine Injection is indicated for patients previously treated with fluorouracil.

2 DOSAGE AND ADMINISTRATION Gemcitabine Injection is for intravenous infusion use only. Ovarian cancer: 1000 mg/m 2 over 30 minutes on Days 1 and 8 of each 21-day cycle. ( 2.1 ) Breast cancer: 1250 mg/m 2 over 30 minutes on Days 1 and 8 of each 21-day cycle. ( 2.2 ) Non-small cell lung cancer: 1000 mg/m 2 over 30 minutes on Days 1, 8, and 15 of each 28-day cycle or 1250 mg/m 2 over 30 minutes on Days 1 and 8 of each 21-day cycle. ( 2.3 ) Pancreatic cancer: 1000 mg/m 2 over 30 minutes once weekly for the first 7 weeks, then one week rest, then once weekly for 3 weeks of each 28-day cycle. ( 2.4 ) 2.1 Ovarian Cancer Recommended Dose and Schedule The recommended dosage of Gemcitabine Injection is 1000 mg/m 2 intravenously over 30 minutes on Days 1 and 8 of each 21-day cycle, in combination with carboplatin AUC 4 administered intravenously on Day 1 after Gemcitabine Injection administration. Refer to the carboplatin prescribing information for additional information. Dose Modifications Recommended Gemcitabine Injection dose modifications for myelosuppression are described in Table 1 and Table 2 [see Warnings and Precautions ( 5.2 )]. Refer to the dose modification recommendations for non-hematologic adverse reactions [see Dosage and Administration ( 2.5 )]. Table 1: Recommended Dosage Modifications for Gemcitabine Injection for Myelosuppression on Day of Treatment in Ovarian Cancer Treatment Day Absolute neutrophil count (x 10 6 /L) Platelet count (x 10 6 /L) Dose modification Day 1 Greater than or equal to 1500 Less than 1500 and or Greater than or equal to 100,000 Less than 100,000 None Delay Treatment Cycle Day 8 Greater than or equal to 1500 1000-1499 Less than 1000 and or or Greater than or equal to 100,000 75,000-99,999 Less than 75,000 None 50% of full dose Hold Table 2: Recommended Dosage Modifications for Gemcitabine Injection for Myelosuppression in Previous Cycle in Ovarian Cancer Occurrence Myelosuppression During Treatment Cycle Dose Modification Initial Occurrence Absolute neutrophil count less than500 x 10 6 /L for more than 5 days or Absolute neutrophil count less than 100 x 10 6 /L for more than 3 days or Febrile neutropenia or Platelets less than 25,000x10 6 /L Cycle delay of more than one week due to toxicity Permanently reduce Gemcitabine Injection dose to 800 mg/m 2 on Days 1 and 8 Subsequent Occurrence If any of the above toxicities occur after the initial dose reduction Permanently reduce Gemcitabine Injection to 800 mg/m 2 on Day 1 only 2.2 Breast Cancer Recommended Dose and Schedule The recommended dosage of Gemcitabine Injection is 1250 mg/m 2 intravenously over 30 minutes on Days 1 and 8 of each 21-day cycle in combination with paclitaxel 175 mg/m 2 administered as a 3-hour intravenous infusion on Day 1 before Gemcitabine Injection administration. Refer to the paclitaxel prescribing information for additional information. Dosage Modifications Recommended Gemcitabine Injection dose modifications for myelosuppression are described in Table 3 [see Warnings and Precautions ( 5.2 )]. Refer to the recommended dosage modifications for non-hematologic adverse reactions [see Dosage and Administration ( 2.5 )]. Table 3: Recommended Dosage Modifications for Gemcitabine Injection for Myelosuppression on Day of Treatment in Breast Cancer Treatment Day Absolute neutrophil count (x 10 6 /L) Platelet count (x 10 6 /L) Dose modification Day 1 Greater than or equal to 1500 and Greater than or equal to 100,000 None Less than 1500 or Less than 100,000 Hold Day 8 Greater than or equal to 1200 and Greater than 75,000 None 1000-1199 or 50,000-75,000 75% of full dose 700-999 and Greater than or equal to 50,000 50% of full dose Less than 700 or Less than 50,000 Hold 2.3 Non-Small Cell Lung Cancer Recommended Dose and Schedule 28-day schedule The recommended dosage of Gemcitabine Injection is 1000 mg/m 2 intravenously over 30 minutes on Days 1, 8, and 15 of each 28-day cycle in combination with cisplatin 100 mg/m 2 administered i…

5 WARNINGS AND PRECAUTIONS Schedule-dependent toxicity: Increased toxicity with infusion time greater than 60 minutes or dosing more frequently than once weekly. ( 5.1 ) Myelosuppression: Monitor for myelosuppression prior to each cycle and reduce or withhold dose for severe myelosuppression. ( 5.2 , 5.7 ) Pulmonary toxicity and respiratory failure: Discontinue Gemcitabine Injection for unexplained dyspnea or other evidence of severe pulmonary toxicity. ( 5.3 ) Hemolytic-uremic syndrome (HUS): Monitor renal function prior to initiation and during therapy. Discontinue Gemcitabine Injection for HUS or severe renal impairment. ( 5.4 ) Hepatoxicity: Monitor hepatic function prior to initiation and during therapy. Discontinue Gemcitabine Injection for severe hepatic toxicity. ( 5.5 ) Embryo-Fetal toxicity: Can cause fetal harm. Advise females and males of reproductive potential to use effective contraception. ( 5.6 , 8.1 ) Exacerbation of radiation therapy toxicity: May cause severe and life-threatening toxicity when administered during or within 7 days of radiation therapy. ( 5.7 ) Capillary leak syndrome: Discontinue Gemcitabine Injection. ( 5.8 ) Posterior reversible encephalopathy syndrome (PRES): Discontinue Gemcitabine Injection. ( 5.9 ) 5.1 Schedule-dependent Toxicity In clinical trials evaluating the maximum tolerated dose of gemcitabine, prolongation of the infusion time beyond 60 minutes or more frequent than weekly dosing resulted in an increased incidence of clinically significant hypotension, severe flu-like symptoms, myelosuppression, and asthenia. The half-life of gemcitabine is influenced by the length of the infusion [see Clinical Pharmacology ( 12.3 )] . [Refer to the recommended Gemcitabine Injection dosing schedule [see Dosage and Administration ( 2.1 , 2.2 , 2.3 , and 2.4 )]. ] 5.2 Myelosuppression Myelosuppression manifested by neutropenia, thrombocytopenia, and anemia occurs with gemcitabine as a single agent and the risks are increased when gemcitabine is combined with other cytotoxic drugs. In clinical trials, Grade 3-4 neutropenia, anemia, and thrombocytopenia occurred in 25%, 8%, and 5%, respectively of the 979 patients who received single-agent gemcitabine. The frequencies of Grade 3-4 neutropenia, anemia, and thrombocytopenia varied from 48% to 71%, 8% to 28%, and 5% to 55%, respectively, in patients receiving gemcitabine in combination with another drug [see Adverse Reactions ( 6.1 )]. Prior to each dose of Gemcitabine Injection, obtain a complete blood count (CBC), with a differential and a platelet count. Modify the Gemcitabine Injection dosage as recommended [see Dosage and Administration ( 2.1 , 2.2 , 2.3 , and 2.4 )] . 5.3 Pulmonary Toxicity and Respiratory Failure Pulmonary toxicity, including interstitial pneumonitis, pulmonary fibrosis, pulmonary edema, and adult respiratory distress syndrome (ARDS), has been reported. In some cases, these pulmonary events can lead to fatal respiratory failure despite discontinuation of therapy. The onset of pulmonary symptoms may occur up to 2 weeks after the last dose of gemcitabine [see Adverse Reactions ( 6.1 , 6.2 )] . Permanently discontinue Gemcitabine Injection in patients who develop unexplained dyspnea, with or without bronchospasm, or have any evidence of pulmonary toxicity. 5.4 Hemolytic Uremic Syndrome Hemolytic uremic syndrome (HUS), including fatalities from renal failure or the requirement for dialysis, can occur with gemcitabine. In clinical trials, HUS occurred in 0.25% of 2429 patients. Most fatal cases of renal failure were due to HUS [see Adverse Reactions ( 6.1 )] . Serious cases of thrombotic microangiopathy (TMA) other than HUS have been reported with gemcitabine [see Adverse Reactions ( 6.2 )]. Assess renal function prior to initiation of Gemcitabine Injection and periodically during treatment. Consider the diagnosis of HUS in patients who develop anemia with evidence of microangiopathic hemolysis; increased bilirubin or LDH; reticulocy…

4 CONTRAINDICATIONS Gemcitabine Injection is contraindicated in patients with a known hypersensitivity to gemcitabine. Reactions include anaphylaxis [see Adverse Reactions ( 6.1 )]. Patients with a known hypersensitivity to gemcitabine. ( 4 )

8.1 Pregnancy Risk Summary Based on animal data and its mechanism of action, Gemcitabine Injection can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 )] . There are no available data on the use of gemcitabine in pregnant women. In animal reproductive studies, gemcitabine was teratogenic, embryotoxic, and fetotoxic in mice and rabbits [see Data ]. Advise pregnant women of the potential risk to a fetus [see Use in Special Populations ( 8.3 )]. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Data Animal Data Gemcitabine is embryotoxic in mice. Daily dosing of gemcitabine to pregnant mice increased the incidence of fetal malformation (cleft palate, incomplete ossification) at doses of 1.5 mg/kg/day in mice [approximately 0.005 times the 1000 mg/m 2 clinical dose based on body surface area (BSA)]. Gemcitabine was embryotoxic and fetotoxic in rabbits. Daily dosing of gemcitabine to pregnant rabbits resulted in fetotoxicity (decreased fetal viability, reduced litter sizes, and developmental delays) and increased the incidence of fetal malformations (fused pulmonary artery, absence of gall bladder) at doses of 0.1 mg/kg/day (approximately 0.002 times the 1000 mg/m 2 clinical dose based on BSA)

8.2 Lactation Risk Summary There is no information regarding the presence of gemcitabine or its metabolites in human milk, or their effects on the breastfed infant or on milk production. Due to the potential for serious adverse reactions in breastfed infants, advise a women not to breastfeed during treatment with Gemcitabine Injection and for one week following the last dose.

6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Hypersensitivity [see Contraindications ( 4 )] Schedule-Dependent Toxicity [see Warnings and Precautions ( 5.1 )] Myelosuppression [see Warnings and Precautions ( 5.2 )] Pulmonary Toxicity and Respiratory Failure [see Warnings and Precautions ( 5.3 )] Hemolytic Uremic Syndrome [see Warnings and Precautions ( 5.4 )] Hepatic Toxicity [see Warnings and Precautions ( 5.5 )] Exacerbation of Radiation Therapy Toxicity [see Warnings and Precautions ( 5.7 )] Capillary Leak Syndrome [see Warnings and Precautions ( 5.8 )] Posterior Reversible Encephalopathy Syndrome [see Warnings and Precautions ( 5.9 )] The most common adverse reactions for the single agent (≥20%) are nausea/vomiting, anemia, increased aspartate aminotransferase (AST), increased alanine aminotransferase (ALT), neutropenia, increased alkaline phosphatase, proteinuria, fever, hematuria, rash, thrombocytopenia, dyspnea, and edema. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Accord Healthcare Inc. at 1-866-941-7875 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 clinical practice. Single-Agent The data described below reflect exposure to gemcitabine as a single agent administered at doses between 800 mg/m 2 to 1250 mg/m 2 intravenously over 30 minutes once weekly in 979 patients with various malignancies. The most common (≥20%) adverse reactions of single-agent gemcitabine are nausea/vomiting, anemia, increased alanine aminotransferase (ALT), increased aspartate aminotransferase (AST), neutropenia, increased alkaline phosphatase, proteinuria, fever, hematuria, rash, thrombocytopenia, dyspnea, and edema. The most common (≥5%) Grade 3 or 4 adverse reactions were neutropenia, nausea/vomiting; increased ALT, increased alkaline phosphatase, anemia, increased AST, and thrombocytopenia. Approximately 10% of the 979 patients discontinued gemcitabine due to adverse reactions. Adverse reactions resulting in discontinuation of gemcitabine in 2% of 979 patients were cardiovascular adverse reactions (myocardial infarction, cerebrovascular accident, arrhythmia, and hypertension) and adverse reactions resulting in discontinuation of gemcitabine in < 1% of the 979 patients were anemia, thrombocytopenia, hepatic dysfunction, renal dysfunction, nausea/vomiting, fever, rash, dyspnea, hemorrhage, infection, stomatitis, somnolence, flu-like syndrome, and edema. Tables 5 and 6 present the incidence of selected adverse reactions and laboratory abnormalities reported in patients with various malignancies receiving single agent gemcitabine across 5 clinical trials. Additional clinically significant adverse reactions and laboratory abnormalities are provided following Table 6 . Table 5: Selected Adverse Reactions Occurring in ≥10% of Patients Receiving Single Agent Gemcitabine a Adverse Reactions b Gemcitabine c All Grades (%) Grade 3 (%) Grade 4 (%) a Grade based on criteria from the World Health Organization (WHO). b For approximately 60% of patients, non-laboratory adverse reactions were graded only if assessed to be possibly drug-related. c N=699-974; all patients with laboratory or non-laboratory data. Nausea and vomiting 69 13 1 Fever 41 2 0 Rash 30 <1 0 Dyspnea 23 3 <1 Diarrhea 19 1 0 Hemorrhage 17 <1 <1 Infection 16 1 <1 Alopecia 15 <1 0 Stomatitis 11 <1 0 Somnolence 11 <1 <1 Paresthesias 10 <1 0 Table 6: Selected Laboratory Abnormalities Occurring in Patients Receiving Single-Agent Gemcitabine a Laboratory Abnormality b Gemcitabine c All Grades (%) Grade 3 (%) Grade 4 (%) a Grade based on criteria from the WHO. b Regardless of causality. c N=699-974 ; all patients with laboratory or n…