(lorlatinib)
Risk Summary
Based on findings from animal studies and its mechanism of action [see Clinical Pharmacology (12.1)], LORBRENA can cause embryo-fetal harm when administered to a pregnant woman. There are no available data on LORBRENA use in pregnant women. Administration of lorlatinib to pregnant rats and rabbits by oral gavage during the period of organogenesis resulted in malformations, increased post-implantation loss, and abortion at maternal exposures that were equal to or less than the human exposure at the recommended dose of 100 mg once daily based on AUC (see Data). Advise a pregnant woman of the potential risk to a fetus.
In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies are 2 to 4% and 15 to 20%, respectively.
Animal Data
Preliminary embryo-fetal development studies investigating the administration of lorlatinib during the period of organogenesis were conducted in rats and rabbits. In rabbits, lorlatinib administration resulted in abortion and total loss of pregnancy at doses of 15 mg/kg (approximately 3 times the human exposure at the recommended dose of 100 mg) or greater. At a dose of 4 mg/kg (approximately 0.6 times the human exposure at the recommended dose of 100 mg) toxicities included increased post-implantation loss and malformations including rotated limbs, malformed kidneys, domed head, high arched palate, and dilation of the cerebral ventricles. In rats, administration of lorlatinib resulted in total loss of pregnancy at doses of 4 mg/kg (approximately 5 times the human exposure at the recommended dose of 100 mg) or greater. At a dose of 1 mg/kg (approximately equal to the human exposure at the recommended dose of 100 mg) there was increased post-implantation loss, decreased fetal body weight, and malformations including gastroschisis, rotated limbs, supernumerary digits, and vessel abnormalities.
Risk Summary
There are no data on the presence of lorlatinib or its metabolites in either human or animal milk or its effects on the breastfed infant or on milk production. Because of the potential for serious adverse reactions in breastfed infants, instruct women not to breastfeed during treatment with LORBRENA and for 7 days after the final dose.
Pregnancy Testing
Verify pregnancy status in females of reproductive potential prior to initiating LORBRENA [see Use in Specific Populations (8.1)].
Contraception
LORBRENA can cause embryo-fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1)].
Females
Advise female patients of reproductive potential to use effective non-hormonal contraception during treatment with LORBRENA and for at least 6 months after the final dose. Advise females of reproductive potential to use a non-hormonal method of contraception, because LORBRENA can render hormonal contraceptives ineffective [see Drug Interactions (7.2)].
Males
Based on genotoxicity findings, advise males with female partners of reproductive potential to use effective contraception during treatment with LORBRENA and for at least 3 months after the final dose [see Nonclinical Toxicology (13.1)].
Infertility
Males
Based on findings from animal studies, LORBRENA may transiently impair male fertility [see Nonclinical Toxicology (13.1)].
The safety and effectiveness of LORBRENA in pediatric patients have not been established.
Of the patients in Study B7461001 (N=295) and Study B7461006 (N=149) who received 100 mg LORBRENA orally once daily, 18% and 40% of patients, respectively, were aged 65 years or older. No clinically important differences in safety or efficacy were observed between patients aged 65 years or older and younger patients.
In patients with severe hepatic impairment (Child-Pugh C), the recommended dosage of LORBRENA is 50 mg orally once daily [see Dosage and Administration (2.5) and Clinical Pharmacology (12.3)].
No dose adjustment is recommended for patients with mild (total bilirubin ≤ ULN with AST > ULN or total bilirubin >1 to 1.5 × ULN with any AST) to moderate (Child-Pugh B) hepatic impairment [see Clinical Pharmacology (12.3)].
In patients with CLcr 15 to <30 mL/min (estimated by Cockcroft‑Gault), the recommended dosage of LORBRENA is 75 mg orally once daily [see Dosage and Administration (2.6) and Clinical Pharmacology (12.3)].
No dose adjustment is recommended for patients with CLcr 30 to 89 mL/min (estimated by Cockcroft‑Gault) [see Clinical Pharmacology (12.3)].
| PATIENT INFORMATION LORBRENA (lor-BREN-ah) (lorlatinib) tablets | ||
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| This Patient Information has been approved by the U.S. Food and Drug Administration. Revised: January 2026 | ||
What is the most important information I should know about LORBRENA? | ||
LORBRENA can cause serious side effects, including: | ||
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If you get serious side effects during treatment, your healthcare provider may change your dose, temporarily stop, or permanently stop treatment with LORBRENA. | ||
What is LORBRENA? | ||
LORBRENA is a prescription medicine used to treat adults with non-small cell lung cancer (NSCLC): | ||
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Your healthcare provider will perform a test to make sure that LORBRENA is right for you. | ||
Do not take LORBRENA if you take certain other medicines called strong CYP3A inducers. Ask your healthcare provider for a list of these medicines if you are not sure. | ||
Before taking LORBRENA, tell your healthcare provider about all of your medical conditions, including if you: | ||
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Tell your healthcare provider about all the medicines you take, including prescription medicines, over-the-counter medicines, vitamins, and herbal supplements. Taking LORBRENA with certain other medicines may increase your risk of side effects and may affect the way LORBRENA or the other medicines work. | ||
How should I take LORBRENA? | ||
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The most common side effects of LORBRENA include: | ||
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LORBRENA may cause decreased fertility in males, which may affect your ability to have children. Talk to your healthcare provider if you have concerns about fertility. | ||
These are not all of the possible side effects of LORBRENA. | ||
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1‑800‑FDA‑1088. | ||
How should I store LORBRENA? | ||
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Keep LORBRENA and all medicines out of the reach of children. | ||
General information about the safe and effective use of LORBRENA. | ||
Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use LORBRENA for a condition for which it was not prescribed. Do not give LORBRENA to other people, even if they have the same symptoms that you have. It may harm them. You can ask your pharmacist or healthcare provider for more information about LORBRENA that is written for health professionals. | ||
What are the ingredients in LORBRENA? | ||
Active ingredient: lorlatinib | ||
Inactive ingredients: microcrystalline cellulose, dibasic calcium phosphate anhydrous, sodium starch glycolate, and magnesium stearate. | ||
Film-coating contains: hydroxypropyl methylcellulose (HPMC) 2910/hypromellose, lactose monohydrate, macrogol/polyethylene glycol (PEG) 3350, triacetin, titanium dioxide, ferrosoferric oxide/black iron oxide, and iron oxide red. | ||
For more information, go to www.Pfizer.com. | ||
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LAB-1163-6.0 | ||
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