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Drug Safety-related Labeling Changes (SrLC)

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TRANXENE (NDA-017105)

(CLORAZEPATE DIPOTASSIUM)

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

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01/13/2023 (SUPPL-85)

Approved Drug Label (PDF)

5 Warnings and Precautions

PRECAUTIONS

Newly added information:

Pregnancy: Advise pregnant females that use of TRANXENE late in pregnancy can result in sedation (respiratory depression, lethargy, hypotonia) and/or withdrawal symptoms (hyperreflexia, irritability, restlessness, tremors, inconsolable crying, and feeding difficulties) in newborns (see Warnings, Neonatal Sedation and Withdrawal Syndrome and Precautions, Pregnancy). Instruct patients to inform their healthcare provider if they are pregnant.

Advise patients that there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to TRANXENE during pregnancy (see Precautions, Pregnancy).

Nursing: Advise patients that breastfeeding is not recommended during treatment with TRANXENE (see Precautions, Nursing Mothers).

. . .

Pregnancy:

Pregnancy Exposure Registry

There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to psychiatric medications, including TRANXENE, during pregnancy. Healthcare providers are encouraged to register patients calling the National Pregnancy Registry for Psychiatric Medications at 1-866-961-2388 or visiting online at https://womensmentalhealth.org/pregnancyregistry/.

Risk Summary

Neonates born to mothers using benzodiazepines late in pregnancy have been reported to experience symptoms of sedation and/or neonatal withdrawal (see WARNINGS: Neonatal Sedation and Withdrawal Syndrome and Clinical Considerations). Available data from

published observational studies of pregnant women exposed to benzodiazepines do not report a clear association with benzodiazepines and major birth defects (see Data).

The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. 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

Fetal/Neonatal Adverse Reactions

Benzodiazepines cross the placenta and may produce respiratory depression, hypotonia, and sedation in neonates. Monitor neonates exposed to TRANXENE during pregnancy or labor for signs of sedation, respiratory depression, hypotonia, and feeding problems. Monitor neonates exposed to TRANXENE during pregnancy for signs of withdrawal. Manage these neonates accordingly (see WARNINGS: Neonatal Sedation and Withdrawal Syndrome).

Data

Human Data

Published data from observational studies on the use of benzodiazepines during pregnancy do not report a clear association with benzodiazepines and major birth defects. Although early studies reported an increased risk of congenital malformations with diazepam and chlordiazepoxide, there was no consistent pattern noted. In addition, the majority of more recent case-control and cohort studies of benzodiazepine use during pregnancy, which were adjusted for confounding exposures to alcohol, tobacco and other medications, have not confirmed these findings.

Animal Data

In animal reproduction studies, oral administration of clorazepate to pregnant rats and rabbits at doses up to 150 and 15 mg/kg, respectively, did not cause fetal toxicities or malformation. However, the sedative effects of high dose clorazepate interfered with the maternal care of the offspring.

Nursing Mothers:

Risk Summary

Clorazepate and its active metabolite, nordiazepam, are present in breast milk. There are reports of sedation, poor feeding and poor weight gain in infants exposed to benzodiazepines through breast milk. The effects of clorazepate on milk production are unknown. Because of the potential for serious adverse reactions, including sedation and withdrawal symptoms in infants, advise patients that breastfeeding is not recommended during treatment with TRANXENE.

WARNINGS

Newly added information:

Neonatal Sedation and Withdrawal Syndrome: Use of TRANXENE late in pregnancy can result in sedation (respiratory depression, lethargy, hypotonia) and/or withdrawal symptoms (hyperreflexia, irritability, restlessness, tremors, inconsolable crying, and feeding difficulties) in the neonate (see PRECAUTIONS: Pregnancy). Monitor neonates exposed to TRANXENE during pregnancy or labor for signs of sedation and monitor neonates exposed to TRANXENE during pregnancy for signs of withdrawal; manage these neonates accordingly.

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

Medication Guide

Additions and revisions underlined:

    • Taking TRANXENE late in pregnancy may cause your baby to have symptoms of sedation (breathing problems, sluggishness, low muscle tone), and/or withdrawal symptoms (jitteriness, irritability, restlessness, shaking, excessive crying, feeding problems).

    • Tell your healthcare provider right away if you become pregnant or think you are pregnant during treatment with TRANXENE.

    • There is a pregnancy registry for women who take TRANXENE during pregnancy. The purpose of the registry is to collect information about the health of you and your baby. If you become pregnant during treatment with TRANXENE, talk to your healthcare provider about registering with the National Pregnancy Registry for Psychiatric Medications. You can register by calling 1- 866-961-2388- or visiting https://womensmentalhealth.org/pregnancyregistry/.

      . . .

      TRANXENE passes into breast milk.

    • Talk to your healthcare provider about the best way to feed your baby if you take TRANXENE.

    • Breastfeeding is not recommended during treatment with TRANXENE.

02/05/2021 (SUPPL-84)

Approved Drug Label (PDF)

Boxed Warning

(Additions and/or revisions underlined)

WARNING: RISKS FROM CONCOMITANT USE WITH OPIOIDS; ABUSE,

MISUSE, AND ADDICTION; and DEPENDENCE AND WITHDRAWAL

REACTIONS

• Concomitant use of benzodiazepines and opioids may result in profound

sedation, respiratory depression, coma, and death. Reserve concomitant

prescribing of these drugs in patients for whom alternative treatment

options are inadequate. Limit dosages and durations to the minimum

required. Follow patients for signs and symptoms of respiratory

depression and sedation (See WARNINGS and PRECAUTIONS).

• The use of benzodiazepines, including TRANXENE, exposes users to risks of

abuse, misuse, and addiction, which can lead to overdose or death. Abuse and

misuse of benzodiazepines commonly involve concomitant use of other

medications, alcohol, and/or illicit substances, which is associated with an

increased frequency of serious adverse outcomes. Before prescribing

TRANXENE and throughout out treatment, assess each patient’s risk for

abuse, misuse, and addiction (See WARNINGS).

• The continued use of benzodiazepines, including TRANXENE, may lead to

clinically significant physical dependence. The risks of dependence and

withdrawal increase with longer treatment duration and higher daily dose.

Abrupt discontinuation or rapid dosage reduction of TRANXENE after

continued use may precipitate acute withdrawal reactions, which can be life threatening.

To reduce the risk of withdrawal reactions, use a gradual taper to

discontinue TRANXENE or reduce the dosage (See DOSAGE AND

ADMINISTRATION and WARNINGS).

5 Warnings and Precautions

Warnings

(Newly added information)

Abuse, Misuse, and Addiction: The use of benzodiazepines, including TRANXENE, exposes users to the risks of abuse, misuse, and addiction, which can lead to overdose or death. Abuse and misuse of benzodiazepines often (but not always) involve the use of doses greater than the maximum recommended dosage and commonly involve concomitant use of other medications, alcohol, and/or illicit substances, which is associated with an increased frequency of serious adverse outcomes, including respiratory depression, overdose, or death (see DRUG ABUSE AND DEPENDENCE: Abuse).

Before prescribing TRANXENE and throughout treatment, assess each patient’s risk for abuse, misuse, and addiction (e.g., using a standardized screening tool). Use of TRANXENE, particularly in patients at elevated risk, necessitates counseling about the risks and proper use of TRANXENE along with monitoring for signs and symptoms of abuse, misuse, and addiction. Prescribe the lowest effective dosage; avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (e.g., opioid analgesics, stimulants); and advise patients on the proper disposal of unused drug. If a substance use disorder is suspected, evaluate the patient and institute (or refer them for) early treatment, as appropriate.

Dependence and Withdrawal Reactions: To reduce the risk of withdrawal reactions, use a gradual taper to discontinue TRANXENE or reduce the dosage (a patient-specific plan should be used to taper the dose) (see DOSAGE AND ADMINISTRATION: Discontinuation of Dosage Reduction of TRANXENE).

Patients at an increased risk of withdrawal adverse reactions after benzodiazepine discontinuation or rapid dosage reduction include those who take higher dosages, and those who have had longer durations of use.

Acute Withdrawal Reactions

The continued use of benzodiazepines, including TRANXENE, may lead to clinically significant physical dependence. Abrupt discontinuation or rapid dosage reduction of TRANXENE after continued use, or administration of flumazenil (a benzodiazepine antagonist) may precipitate acute withdrawal reactions, which can be life-threatening (e.g., seizures) (see DRUG ABUSE AND DEPENDENCE: Dependence).

Protracted Withdrawal Syndrome

In some cases, benzodiazepine users have developed a protracted withdrawal syndrome with withdrawal symptoms lasting weeks to more than 12 months (see DRUG ABUSE AND DEPENDENCE).

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

Information for Patients

Advise the patient to read the FDA-approved patient labeling (Medication Guide).

Risks from Concomitant Use with Opioids

Advise both patients and caregivers about the risks of potentially fatal respiratory depression and sedation when TRANXENE is used with opioids and not to use such drugs concomitantly unless supervised by a health care provider. Advise patients not to drive or operate heavy machinery until the effects of concomitant use with the opioid have been determined (see WARNINGS, Risks from Concomitant Use with Opioids and PRECAUTIONS, Drug Interactions).

Abuse, Misuse, and Addiction: Inform patients that the use of TRANXENE, even at recommended dosages, exposes users to risks of abuse, misuse, and addiction, which can lead to overdose and death, especially when used in combination with other medications (e.g., opioid analgesics), alcohol, and/or illicit substances. Inform patients about the signs and symptoms of benzodiazepine abuse, misuse, and addiction; to seek medical help if they develop these signs and/or symptoms; and on the proper disposal of unused drug (see WARNINGS and DRUG ABUSE AND DEPENDENCE).

Withdrawal Reactions: Inform patients that the continued use of TRANXENE may lead to clinically significant physical dependence and that abrupt discontinuation or rapid dosage reduction of TRANXENE may precipitate acute withdrawal reactions, which can be life- threatening. Inform patients that in some cases, patients taking benzodiazepines have developed a protracted withdrawal syndrome with withdrawal symptoms lasting weeks to more than 12 months. Instruct patients that discontinuation or dosage reduction of TRANXENE may require a slow taper (see WARNINGS and DRUG ABUSE AND DEPENDENCE).

Medication Guide

(Extensive changes; please refer to label)

12/16/2016 (SUPPL-79)

Approved Drug Label (PDF)

Boxed Warning

(new section added)

 

WARNING: RISKS FROM CONCOMITANT USE WITH OPIOIDS

 

Concomitant use of benzodiazepines and opioids may result in profound sedation, respiratory depression, coma, and death.

 

•                       Reserve concomitant prescribing of these drugs for use in patients for whom alternative treatment options are inadequate.

•                       Limit dosages and durations to the minimum required.

•                       Follow patients for signs and symptoms of respiratory depression and sedation.

5 Warnings and Precautions

WARNINGS

(additions underlined)

 

Risks from Concomitant Use with Opioids: Concomitant use of benzodiazepines, including TRANXENE, and opioids may result in profound sedation, respiratory depression, coma, and death. Because of these risks, reserve concomitant prescribing of these drugs for use in patients for whom alternative treatment options are inadequate.

Observational studies have demonstrated that concomitant use of opioid analgesics and benzodiazepines increases the risk of drug-related mortality compared to use of opioids alone. If a decision is made to prescribe TRANXENE concomitantly with opioids, prescribe the lowest effective dosages and minimum durations of concomitant use, and follow patients closely for signs and symptoms of respiratory depression and sedation. In patients already

receiving an opioid analgesic, prescribe a lower initial dose of TRANXENE than indicated in the absence of an opioid and titrate based on clinical response. If an opioid is initiated in a patient already taking TRANXENE, prescribe a lower initial dose of the opioid and titrate based upon clinical response.

 

Advise both patients and caregivers about the risks of respiratory depression and sedation when TRANXENE is used with opioids. Advise patients not to drive or operate heavy machinery until the effects of concomitant use with the opioid have been determined

Table 1: Risk by indication for antiepileptic drugs in the pooled analysis

(table revised; please refer to label)

7 Drug Interactions

(additions underlined)

 

The concomitant use of benzodiazepines and opioids increases the risk of respiratory depression because of actions at different receptor sites in the CNS that control respiration. Benzodiazepines interact at GABAA sites and opioids interact primarily at mu receptors. When benzodiazepines and opioids are combined, the potential for benzodiazepines to significantly worsen opioid-related respiratory depression exists. Limit dosage and duration of concomitant use of benzodiazepines and opioids, and monitor patients closely for respiratory depression and sedation.

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

MEDICATION GUIDE

(additions underlined)

 

TRANXENE is a benzodiazepine medicine. Taking benzodiazepines with opioid medicines, alcohol, or other central nervous system depressants (including street drugs) can cause severe drowsiness, breathing problems (respiratory depression), coma and death.

 

What is TRANXENE?

 

It is not known if TRANXENE is safe and effective in children less than 9 years of age.

 

Before you take TRANXENE, tell your healthcare provider about all your medical conditions including, if you:

·       have liver or kidney problems

·       have or have had depression, mood problems, or suicidal thoughts or behavior

·       have a history of abnormal thinking and behavior (psychotic reactions)

 

 

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Taking TRANXENE with certain other medicines can cause side effects or affect how well TRANXENE or the other medicines work. Do not start or stop other medicines without talking to your healthcare provider.

 

 

How should I take TRANXENE?

•Take TRANXENE exactly as your healthcare provider tells you to take it. Your healthcare provider will tell you how much TRANXENE to take and when to take it.

•Your healthcare provider may change your dose if needed. Do not change your dose of TRANXENE

without talking to your healthcare provider.

•Do not stop taking TRANXENE without first talking to your healthcare provider. Stopping TRANXENE

suddenly can cause serious problems.

•If you take too much TRANXENE, call your healthcare provider or go to the nearest hospital emergency room right away.