Gemcitabine is administered intravenously drip for 30 minutes.
Before each administration of gemcitabine, it is necessary to control the number of platelets, leukocytes and granulocytes in the blood. At signs of oppression of bone marrow function caused by the drug, it is necessary to suspend treatment or adjust the dose.
Non-small cell lung cancer (locally advanced or metastatic), first-line therapy
Monotherapy: the recommended dose of the drug is 1000 mg / m2 on days 1, 8 and 15 of each 28-day cycle.
Combination therapy with cisplatin: the recommended dose of the drug is 1250 mg / m2 on days 1 and 8 of each 21-day cycle or 1000 mg / m2 on days 1, 8 and 15 of each 28-day cycle. Cisplatinum is administered at a dose of 70 mg / m2 in the 1st day of the cycle after the infusion of gemcitabine against a background of hyperhydration.
Combination therapy with carboplatin: the recommended dose of the drug is 1000 mg / m2 or 1200 mg / m2 on days 1 and 8 of each 21-day cycle.
Carboplatin is introduced from the calculation of AUC (area under the concentration-time curve) 5.0 mg / ml / min on the first day of the cycle after the infusion of gemcitabine.
Breast cancer (unresectable, local-recurring or metastatic)
Combination therapy with paclitaxel: as first-line therapy for the progression of the disease after neoadjuvant and / or adjuvant therapy, including anthracyclines,in the absence of contraindications to them.
Paclitaxel is found in a dose of 175 mg / m2 intravenously drip for 3 hours on day 1 of the 21-day cycle, followed by gemcitabine. The recommended dose of the drug is 1250 mg / m2 on days 1 and 8 of each 21-day cycle.
Before the start of combination therapy (gemcitabinepaclitaxel) the absolute number of granulocytes in the blood of the patient should be at least 1500 / μl.
Urothelial cancer (bladder cancer is locally advanced, metastatic and superficial), renal pelvis, ureter, urethra).
Monotherapy: the recommended dose of the drug is 1250 mg / m2 on days 1, 8 and 15 of each 2 8-day cycle.
Combined therapy with iisplatinom: the recommended dose of the drug is 1000 mg / m2 on days 1, 8 and 15 in combination with cisplatin, which is administered at a dose of 70 mg / m2 immediately after the infusion of gemcitabine on or on day 2 of each 28-day cycle. Clinical studies have shown that with a dose of cisplatin 100 mg / m2 more pronounced myelosuppression. Epithelial ovarian cancer (locally advanced or metastatic, resistant to platinum derivatives)
Monotherapy: the recommended dose of the drug is 800-1250 mg / m2 on days 1, 8 and 15 of each 28-day cycle.
Combination therapy with carboplatin: the recommended dose of the drug is 1000 mg / m2 at 1 and 8 days in combination with carboplatin at the rate of AUC 4.0 mg / ml / min, which is injected immediately after the infusion of gemcitabine on day 1 of each 21-day cycle.
Pancreatic cancer (locally advanced or metastatic, including resistant to fluorouracil therapy)
Ionotherapy: the recommended dose of the drug is 1000 mg / m2 Once a week for 7 weeks followed by a weekly break. The preparation is then administered on days 1, 8 and 15 of each 28-day cycle.
Cervical cancer (locally advanced or metastatic) Combined therapy with Iisplatinum: with locally advanced cancer with sequential chemoradiotherapy (neoadjuvant) and with metastatic cancer cisplatin is administered at a dose of 70 mg / m2 in the 1st day of the cycle against a background of hyperhydration followed by the introduction of gemcitabine.
Gemcitabine is administered at a dose of 1250 mg / m2 on days 1 and 8 of each 21-day cycle.
With locally advanced cancer with simultaneous chemoradiotherapy cisplatin is administered at a dose of 40 mg / m2 with the subsequent (immediately after the introduction of cisplatin) by the administration of gemcitabine. Gemcitabine is administered once a week 1-2 hours before the start of radiotherapy at a dose of 1250 mg / m2.
Bile duct cancer
Combined therapy with iisplatinom: cisplatin is administered at a dose of 70 mg / m2 in the 1st day of the cycle against a background of hyperhydration followed by the introduction of gemcitabine. Gemcitabine is administered at a dose of 1250 mg / m2 on days 1 and 8 of each 21-day cycle.
Correction of dose
In case of development of hematological toxicity, the dose of gemcitabine can be reduced, or its administration postponed in accordance with the following schemes:
A. Correction of the dose of gemcitabine within the cycle for urothelial cancer, non-small cell lung cancer, pancreatic cancer as monotherapy or in combination with cisplatin.
The absolute amount of granulocytes (in 1 μl) | | The number of platelets (in 1 μl) | % of previous dose |
>1000 | and | >100000 | 100 |
500-1000 | or | 50000-100000 | 75 |
<500 | or | <50000 | Postpone the introduction |
B. Correction of the dose of gemcitabine within the cycle for breast cancer in combination with paclitaxel
The absolute amount of granulocytes (in 1 μl) |
| The number of platelets (in 1 μl) | % of previous dose |
>1200 | and | >75000 | 100 |
1000-<1200 | or | 50000-75000 | 75 |
700 -<1000 | and | >50000 | 50 |
<700 | or | <50000 | Postpone the introduction |
B. Correction of the dose of gemcitabine within the cycle for ovarian cancer in combination with carboplatin
The absolute amount of granulocytes (in 1 μl) | | The number of platelets (in 1 μl) | % of previous dose |
>1500 | AND | >100000 | 100 |
1000-1500 | Or | 75000-100000 | 50 |
<1000 | or | <75000 | Postpone the introduction |
To detect nonhematological toxicity, a regular examination of the patient and control of the liver and kidney function should be carried out. Depending on the degree of toxicity, the dose can be reduced during each cycle or with the onset of a new step.
The drug should be delayed until, according to the doctor, toxicity is not resolved.
Special patient groups
Patients with impaired renal liver function
Use gemcitabine in patients with hepatic insufficiency or with impaired renal function, caution should be exercised, since there is insufficient data on the use of the drug in this category of patients.
Renal failure of mild or moderate severity (glomerular filtration rate from 30 ml / min to 80 ml / min) has no significant effect on the pharmacokinetics of gemcitabine.
Children
Gemcitabine was studied in limited studies of I and II phases in children with different types of neoplasms. The data of these studies are not enough to prove the effectiveness and safety of gemcitabine in children.
Elderly patients (over 65 years of age)
There is no evidence to suggest that elderly patients need to adjust the dose.
Rules for the preparation of a solution for infusions
In the quality of the solvent used 0.9% solution of sodium chloride (no preservatives) or 5% solution of dextrose.
1.To prepare the solution, you must adhere to the requirements for the preparation of solutions for intravenous administration.
2.Transfer the necessary volume of concentrate in aseptic conditions to a suitable infusion bag or vial.
3.To stir thoroughly.
4.The resulting solution should be clear, from colorless to pale yellow.
5.Before parenteral administration, it is necessary to visually monitor the prepared solution for mechanical impurities and discoloration. Do not inject the solution if particles are found in it.
6.Any unused product or waste must be are disposed of in accordance with local requirements.
7. After dissolving in 0.9% solution of sodium chloride for injections (without preservatives) or 5% solution of dextrose retains physico-chemical stability for 28 days at a temperature of 20 to 25 ° C or in a dark place at a temperature of 2 to 8 ° C (see section "Shelf Life").
From the microbiological point of view, it is recommended to use the drug immediately after opening or dilution. Otherwise, the time and storage conditions are controlled by the person in charge, but when opened and diluted in uncontrolled and unallocated aseptic conditions, the vial after opening and the diluted infusion solution should be stored at room temperature for no more than 24 hours.