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Uses
Gemcitabine 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.
Gemcitabine 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.
Gemcitabine 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.
Gemcitabine 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 is indicated for patients previously treated with 5-FU.
History
There is currently no drug history available for this drug.
Other Information
Gemcitabine for injection USP is a nucleoside metabolic inhibitor that exhibits antitumor activity. Gemcitabine hydrochloride is 2´-deoxy-2´,2´-difluorocytidine monohydrochloride ( β-isomer).The structural formula is as follows:
The empirical formula for gemcitabine hydrochloride is C9H11F2N3O4 • HCl. It has a molecular weight of 299.66.
Gemcitabine hydrochloride is a white to off-white solid. It is soluble in water, slightly soluble in methanol, and practically insoluble in ethanol and polar organic solvents.
Gemcitabine for injection USP is supplied in a sterile form for intravenous use only. Vials of Gemcitabine for Injection USP contain either 200 mg or 1 g of gemcitabine hydrochloride USP (expressed as free base) formulated with mannitol USP (200 mg or 1 g, respectively) and sodium acetate USP (12.5 mg or 62.5 mg, respectively) as a sterile lyophilized powder. Hydrochloric acid NF and/or sodium hydroxide NF may have been added for pH adjustment.
Sources
Sambrosa Sweet Dreams Nighttime Manufacturers
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Sambrosa Care Inc.
Sambrosa Sweet Dreams Nighttime | Heritage Pharmaceuticals Inc.
2.1 Ovarian CancerRecommended Dose and Schedule The recommended dose of Gemcitabine for Injection USP is 1000 mg/m2 as an intravenous infusion over 30 minutes on Days 1 and 8 of each 21-day cycle, in combination with carboplatin AUC 4 intravenously after Gemcitabine for Injection USP administration on Day 1 of each 21-day cycle. Refer to carboplatin prescribing information for additional information. Dose Modifications Recommended Gemcitabine for Injection USP dose modifications for myelosuppression are described Table 1 and Table 2 [see Warnings and Precautions (5.2)]. Refer to Dosage and Administration (2.5) for recommendations for non-hematologic adverse reactions.
Table 1: Dosage Reduction Guidelines for Gemcitabine for injection USP for Myelosuppression on Day of Treatment in Ovarian Cancer Treatment Day
Absolute granulocyte count
(x 106/L)
Platelet count
(x 106/L)
% of full dose
Day 1
≥1500
<1500
and
or
≥100,000
<100,000
100%
Delay Treatment Cycle
Day 8
≥1500
1000-1499
<1000
and
or
or
≥100,000
75,000-99,999
<75,000
100
50
Hold
Table 2: Gemcitabine for Injection USP Dose Modification for Myelosuppression in Previous Cycle In Ovarian Cancer Occurrence
Myelosuppression During Treatment Cycle
Dose Modification
Initial Occurrence
Absolute granulocyte count less than 500 x 106/L for more
than 5 days
Absolute granulocyte count less than 100 x 106/L for more
than 3 days
Febrile neutropenia
Platelets less than 25,000x106/L
Cycle delay of more than one week due to toxicity
Permanently reduce Gemcitabine for Injection USP to 800 mg/m2 on Days
1 and 8
Subsequent Occurrence
If any of the above toxicities occur after the initial dose
reduction
Permanently reduce Gemcitabine for Injection USP dose to 800 mg/m2 on
Day 1 only
2.2 Breast CancerRecommended Dose and Schedule The recommended dose of Gemcitabine for Injection USP is 1250 mg/m2 intravenously over 30 minutes on Days 1 and 8 of each 21-day cycle that includes paclitaxel. Paclitaxel should be administered at 175 mg/m2 on Day 1 as a 3 hour intravenous infusion before Gemcitabine for Injection USP administration. Dose Modifications Recommended dose modifications for Gemcitabine for Injection USP for myelosuppression are described in Table 3 [see Warnings and Precautions (5.2)]. Refer to Dosage and Administration (2.5) for recommendations for non-hematologic adverse reactions.
Table 3: Recommended Dose Reductions for Gemcitabine for Injection USP for Myelosuppression on Day of Treatment in Breast Cancer Treatment Day
Absolute granulocyte count
(x 106/L)
Platelet count
(x 106/L)
% of full dose
Day 1
≥1500
and
≥100,000
100%
less than 1500
or
less than 100,000
Hold
Day 8
≥1200
and
>75,000
100%
1000-1199
or
50,000-75,000
75%
700-999
and
≥50,000
50%
<700
or
<50,000
Hold
2.3 Non-Small Cell Lung CancerRecommended Dose and Schedule
Every 4-week schedule
The recommended dose of Gemcitabine for Injection USP is 1000 mg/m2 intravenously over 30 minutes on Days 1, 8, and 15 in combination with cisplatin therapy. Administer cisplatin intravenously at 100 mg/m2 on Day 1 after the infusion of Gemcitabine for Injection USP.
Every 3-week schedule
The recommended dose of Gemcitabine for Injection USP is 1250 mg/m2intravenously over 30 minutes on Days 1 and 8 in combination with cisplatin therapy. Administer cisplatin intravenously at 100 mg/m2 on Day 1 after the infusion of Gemcitabine for Injection USP.
Dose Modifications
Recommended dose modifications for Gemcitabine for Injection USP myelosuppression are described in Table 4 [see Warnings and Precautions(5.2)]. Refer to Dosage and Administration (2.5) for Gemcitabine for Injection USP recommendations for non-hematologic adverse reactions.
2.4 Pancreatic CancerRecommended Dose and Schedule
The recommended dose of Gemcitabine for Injection USP is 1000 mg/m2 over 30 minutes intravenously. The recommended treatment schedule
Weeks 1 to 8: weekly dosing for the first 7 weeks followed by one week rest. After week 8: weekly dosing on Days 1, 8, and 15 of 28-day cycles.Dose Modifications
Recommended dose modifications for Gemcitabine for Injection USP for myelosuppression are described in Table 4 [see Warnings and Precautions (5.2)]. Refer to Dosage and Administration (2.5) for recommendations for non-hematologic adverse reactions.
Patients receiving Gemcitabine for Injection USP should be monitored prior to each dose with a complete blood count (CBC), including differential and platelet count. If marrow suppression is detected, therapy should be modified or suspended according to the guidelines in Table 4.
Table 4: Recommended Dose Reductions for Gemcitabine for Injection USP for Myelosuppression in Pancreatic Cancer and Non-Small Cell Lung Cancer Absolute granulocyte count
(x 106/L)
Platelet count
(x 106/L)
% of full dose
≥1000
And
≥100,000
100
500-999
Or
50,000-99,999
75
<500
Or
<50,000
Hold
2.5 Dose Modifications for Non-Hematologic Adverse ReactionsPermanently discontinue Gemcitabine for Injection USP for any of the following
Unexplained dyspnea or other evidence of severe pulmonary toxicity Severe hepatic toxicity Hemolytic-Uremic Syndrome Capillary Leak Syndrome Posterior reversible encephalopathy syndromeWithhold Gemcitabine for Injection USP or reduce dose by 50% for other severe (Grade 3 or 4) non-hematological toxicity until resolved. No dose modifications are recommended for alopecia, nausea, or vomiting.
2.6 Preparation and Administration PrecautionsExercise caution and wear gloves when preparing gemcitabine solutions. Immediately wash the skin thoroughly or rinse the mucosa with copious amounts of water if gemcitabine contacts the skin or mucus membranes. Death has occurred in animal studies due to dermal absorption. For further guidance on handling Gemcitabine for Injection USP go to "OSHA Hazardous Drugs" (refer to antineoplastic weblinks including OSHA Technical Manual) at OSHA.http://www.osha.gov/SLTC/hazardousdrugs/index.html
2.7 Preparation for Intravenous Infusion AdministrationReconstitute the vials with 0.9% Sodium Chloride Injection without preservatives.
Add 5 mL to the 200-mg vial or 25 mL to the 1-g vial. These dilutions each yield a gemcitabine concentration of 38 mg/mL. Complete withdrawal of the vial contents will provide 200 mg or 1 g of gemcitabine. Prior to administration the appropriate amount of drug must be diluted with 0.9% Sodium Chloride Injection. Final concentrations may be as low as 0.1 mg/mL.
Reconstituted gemcitabine is a clear, colorless to light straw-colored solution. Inspect visually prior to administration and discard for particulate matter or discoloration. Gemcitabine solutions are stable for 24 hours at controlled room temperature of 20° to 25°C (68° to 77°F). Do not refrigerate as crystallization can occur.
No incompatibilities have been observed with infusion bottles or polyvinyl chloride bags and administration sets.
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