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Drug Safety-related Labeling Changes (SrLC)

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STARLIX (NDA-021204)

(NATEGLINIDE)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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10/28/2021 (SUPPL-25)

Approved Drug Label (PDF)

8 Use in Specific Populations

8.1 Pregnancy

(PLLR conversion)

Risk Summary

The available data from published literature and the applicant’s pharmacovigilance with use of Starlix in pregnant women are insufficient to identify a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. There are risks to the mother and fetus associated with poorly controlled diabetes in pregnancy (see Clinical Considerations). STARLIX should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. In animal reproduction studies, there was no teratogenicity in rats and rabbits administered oral nateglinide during organogenesis at approximately 27 and 8 times the maximum recommended human dose (MRHD), respectively, based on body surface area (BSA).

The estimated background risk of major birth defects is 6% to 10% in women with pre-gestational diabetes with a HbA1c > 7 and has been reported to be as high as 20% to 25% in women with a HbA1c > 10. The estimated background risk of miscarriage for the indicated population is unknown. 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.

Clinical Considerations

Disease-Associated Maternal and/or Embryo/Fetal Risk

Poorly controlled diabetes in pregnancy increases the maternal risk for diabetic ketoacidosis, pre-eclampsia, spontaneous abortions, preterm delivery, and delivery complications. Poorly controlled diabetes increases the fetal risk for major birth defects, stillbirth, and macrosomia related morbidity.

Data

Animal data

In embryofetal development studies, nateglinide administered orally during the period of organogenesis was not teratogenic in rats at doses up to 1,000 mg/kg (corresponding to 27 times the MRHD of 120 mg three times per day, based on BSA). In rabbits, embryonic development was adversely affected at 500 mg/kg/day and the incidence of gallbladder agenesis or small gallbladder was increased at a dose of 300 and 500 mg/kg (corresponding to 16 and 27 times the MRHD). No such effects were observed at 150 mg/kg/day (corresponding to 8 times the MRHD). In a pre- and postnatal development study in rats, nateglinide administered by oral gavage at doses of 100, 300, and 1000 mg/kg/day from gestation day 17 to lactation day 21 resulted in lower body weight in offspring of rats administered nateglinide at 1,000 mg/kg/day (corresponding to 27 times the MHRD).

8.2 Lactation

(PLLR conversion)

Risk summary

There are no data on the presence of nateglinide in human milk, the effects on the breastfeeding infant, or the effects on milk production. The drug is present in animal milk. When a drug is present in animal milk, it is likely that the drug will be present in human milk (see Data). Because the potential for hypoglycemia in breast-fed infants, advise women that use of STARLIX is not recommended while breastfeeding.

Data

In rat reproduction studies, nateglinide and its metabolite are excreted in the milk following oral dose (300 mg/kg). The overall milk: plasma (M/P) concentration ratio of the total radioactivity was approximately 1.4 based on AUC0-48 values. The M/P ratio of unchanged nateglinide was approximately 2.2.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT COUNSELING INFORMATION

(Additions and/or revisions underlined)

Administration

Instruct patients to take STARLIX 1 to 30 minutes before meals. Instruct patients that skip meals to skip their dose of STARLIX [see Dosage and Administration (2)].

Hypoglycemia

Inform patients that STARLIX can cause hypoglycemia and instruct patients and their caregivers on self-management procedures including glucose monitoring and management of hypoglycemia. Inform patients that their ability to concentrate and react may be impaired as a result of hypoglycemia. In patients at higher risk for hypoglycemia and patients who have reduced symptomatic awareness of hypoglycemia, increased frequency of blood glucose monitoring is recommended [see Warnings and Precautions (5.1)].

Lactation

Advise patients that use of Starlix is not recommended while breastfeeding [see Use in Specific Populations (8.2)].

Drug Interactions

Discuss potential drug interactions with patients and inform them of potential drug-drug interactions with STARLIX.

05/10/2018 (SUPPL-23)

Approved Drug Label (PDF)

4 Contraindications

Inactive replaces active in the contraindication statement.

7 Drug Interactions

Table 2, Row 1 (Drugs): The following underlined information was added:

 …sulfinpyrazone) or in patients known to be poor metabolizers of CYP2C8 substrates, alcohol …

03/14/2017 (SUPPL-15)

Approved Drug Label (PDF)

4 Contraindications

(Additions and/or revisions are underlined)

STARLIX is contraindicated in patients with a history of hypersensitivity to STARLIX or its active ingredients.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

17 PATIENT COUNSELING INFORMATION

(Newly added section)

Administration

Instruct patients to take STARLIX 1 to 30 minutes before meals. Instruct patients that skip meals to skip their dose of STARLIX.

Hypoglycemia

Inform patients that STARLIX can cause hypoglycemia and instruct patients and their caregivers on self-management procedures including glucose monitoring and management of hypoglycemia. Inform patients that their ability to concentrate and react may be impaired as a result of hypoglycemia. In patients at higher risk for hypoglycemia and patients who have reduced symptomatic awareness of hypoglycemia, increased frequency of blood glucose monitoring is recommended

Drug Interactions

Discuss potential drug interactions with patients and inform them of potential drug-drug interactions with STARLIX.

Other

(Physicians Labeling Rule (PLR) Conversion; extensive changes-please refer to label)