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Drug Safety-related Labeling Changes (SrLC)

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MAVENCLAD (NDA-022561)

(CLADRIBINE)

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

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05/14/2026 (SUPPL-13)

Approved Drug Label (PDF)

4 Contraindications

Additions and/or revisions underlined:

MAVENCLAD is contraindicated:

 

  • in patients with current malignancy [see Warnings and Precautions (5.1)].

  • in pregnant women and in females and males of reproductive potential who do not plan to use effective contraception during MAVENCLAD dosing and for 6 months after the lastdose in each treatment course for females, and 14 weeks for males. May cause fetal harm [see Warnings and Precautions (5.2) and Use in Specific Populations (8.1, 8.3)].

. . .

8 Use in Specific Populations

8.1 Pregnancy

Additions and/or revisions underlined:

. . .

There is a pregnancy safety study that monitors the pregnancy and infant outcomes following exposure to cladribine. Physicians and patients are encouraged to report pregnancies of female patients with multiple sclerosis exposed to oral cladribine during pregnancy or within 6 months before conception as well as pregnancies fathered by male patients with multiple sclerosis who had taken oral cladribine within 14 weeks before conception by calling EMD Serono’s Adverse Event reporting line at 1-800-283-8088 ext. 5563 or by faxing 1-781-681-2961.

. . .

 

8.2 Lactation

Additions and/or revisions underlined:

Risk Summary

MAVENCLAD is contraindicated in breastfeeding females because of the potential for serious adverse reactions in breastfed infants, including infections and hematologic toxicity [see Contraindications (4) and Warnings and Precautions(5)]. Advise women not to breastfeed during dosing with MAVENCLAD and for 10 days after the last dose [see Clinical Pharmacology (12.3)].

 

Literature data shows that cladribine is present in human milk. There are no data on the effects on the breastfed infant, or the effects on milk production.

 

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

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

. . .

Risk of Teratogenicity

Inform patients that MAVENCLAD may cause fetal harm. Discuss with females of reproductive potential whether they are pregnant, might be pregnant, or are trying to become pregnant. Before initiating each treatment course, inform patients about the potential risk to the fetus if female patients or partners of male patients get pregnant during MAVENCLAD dosing or within 6 months after the last dose for female patients, and within 14 weeks after the last dose for male patients, in each treatment course [see Warnings and Precautions (5.2) and Use in Specific Populations (8.1, 8.3)].

. . .

Instruct males of reproductive potential to take precautions to prevent pregnancy of their partner during MAVENCLAD dosing and for at least 14 weeks after the last dose in each treatment course.

. . .

Advise patients that there is a pregnancy safety study that monitors the pregnancy outcomes in female patients exposed to cladribine during pregnancy or within 6 months before conception, as well as pregnancies fathered by male patients exposed to cladribine within 14 weeks before conception, and they can report the pregnancy by calling EMD Serono’s Adverse Event reporting line at 1-800-283-8088 ext. 5563 or by faxing 1-781-681-2961 [see Use in Specific Populations (8.1)].

. . .

 

MEDICATION GUIDE

Additions and/or revisions underlined:

. . .

    • For females who are able to become pregnant:

      • Your healthcare provider should order a pregnancy test for you before you begin your first and second yearly treatment course of MAVENCLAD to make sure that you are not pregnant. Your healthcare provider will decide when to do the test.

      • Use effective birth control (contraception) on the days on which you take MAVENCLAD and for at least 6 months after the last dose of each yearly treatment course.

        Ask your healthcare provider which contraception method is right for you.

    • For males with female partners who are able to become pregnant:

      • Use effective birth control (contraception) during the days on which you take MAVENCLAD and for at least 14 weeks after the last dose of each yearly treatment course.

  • MAVENCLAD Pregnancy Safety Study

    • For females treated with MAVENCLAD: if you become pregnant while taking MAVENCLAD or during the 6 months after your last dose.

    • For males treated with MAVENCLAD with a female partner: if your partner becomes pregnant while you are taking MAVENCLAD or during the 14 weeks after your last dose.

. . .

Before you take MAVENCLAD, tell your healthcare provider about all of your medical conditions, including if

you:

. . .

  • are breastfeeding or plan to breastfeed. MAVENCLAD can pass into your breast milk and may harm your baby. Do not breastfeed on the days you take MAVENCLAD, and for 10 days after the last dose. See Do not take MAVENCLAD if you:

. . .

05/10/2024 (SUPPL-11)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.7 Liver Injury

Additions and/or revisions underlined:

Mavenclad can cause liver injury. In clinical studies, 0.3% of MAVENCLAD-treated patients had liver injury (serious or causing treatment discontinuation) considered related to treatment, compared to 0 placebo patients. Onset ranged from a few weeks to several months after initiation of treatment with MAVENCLAD. Signs and symptoms of liver injury, including elevation of serum aminotransferases to greater than 20-fold the upper limit of normal, were observed. These abnormalities resolved upon treatment discontinuation.

Clinically significant and life-threatening liver injury has been reported in patients treated with MAVENCLAD in the postmarketing setting. Patients with pre-existing liver disease and patients taking other hepatotoxic drugs may be at increased risk for developing liver injury when taking MAVENCLAD. Most reported cases of liver injury associated with MAVENCLAD occurred approximately 30 days after initiation (i.e., course 1, cycle 1) of treatment.

MAVENCLAD is not recommended in patients with moderate to severe hepatic impairment (Child-Pugh score greater than 6) [see Use in Specific Populations (8.7), Clinical Pharmacology (12.3)].

Obtain serum aminotransferase, alkaline phosphatase, and total bilirubin levels prior to each treatment cycle and course [see Dosage and Administration (2.1)]. If a patient develops clinical signs, including unexplained liver enzyme elevations, or symptoms suggestive of hepatic dysfunction (e.g., unexplained nausea, vomiting, abdominal pain, fatigue, anorexia, or jaundice and/or dark urine), promptly measure serum transaminases and total bilirubin and interrupt or discontinue treatment with MAVENCLAD, as appropriate.

6 Adverse Reactions

6.2 Postmarketing Experience

Additions and/or revisions underlined:

Hepatobiliary Disorders: liver injury [see Warnings and Precautions (5.7)]

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

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Liver Injury

Inform patients that liver injury has been reported in patients receiving MAVENCLAD. Instruct patients treated with MAVENCLAD to report promptly any symptoms that may indicate liver injury, including fatigue, anorexia, right upper abdominal discomfort, dark urine, or jaundice. A blood test should be obtained prior to each treatment cycle and course with MAVENCLAD and as clinically indicated thereafter [see Warnings and Precautions (5.7).

MEDICATION GUIDE

Additions and/or revisions underlined:

What are the possible side effects of MAVENCLAD?

MAVENCLAD can cause serious side effects, including:

  • liver problems. MAVENCLAD may cause liver damage. Your risk of developing serious liver problems may be higher if you already have liver problems or take other medicines that also affect your liver. Your healthcare provider should do blood tests to check your liver:

    • before you start taking MAVENCLAD

    • before each course and cycle of MAVENCLAD treatment

02/07/2024 (SUPPL-9)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.4 Infections

Additions and/or revisions underlined:

Serious, including life-threatening or fatal, bacterial, viral, parasitic, and fungal infections have been reported in patients receiving MAVENCLAD. MAVENCLAD reduces the body's immune defense, and an increased risk of infections has been observed in patients receiving MAVENCLAD.

Infections occurred in 49% of MAVENCLAD-treated patients compared to 44% of placebo patients in clinical studies; serious or severe infections occurred in 2.4% of MAVENCLAD- treated patients and 2.0% of placebo-treated patients. The most frequent serious infections in MAVENCLAD-treated patients included herpes zoster and pyelonephritis (see Herpes Virus Infections). Fungal infections were observed, including cases of coccidioidomycosis.

In the postmarketing setting, serious infections have been reported, including nocardiosis, varicella zoster, histoplasmosis, cryptococcosis, and toxoplasmosis. The majority of patients with these infections who had an available absolute lymphocyte count at the time of the event had concurrent lymphopenia, consistent with the mechanism of action of MAVENCLAD [see Warnings and Precautions (5.3)].

HIV infection, active tuberculosis, and active hepatitis must be excluded before initiation of each treatment course of MAVENCLAD [see Contraindications (4)].

Delay initiation of MAVENCLAD in patients with an acute infection until the infection is fully resolved or controlled.

6 Adverse Reactions

6.2 Postmarketing Experience

Newly added subsection

The following adverse reactions have been identified during postapproval use of MAVENCLAD. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Infections and Infestations: nocardiosis, varicella zoster, histoplasmosis, cryptococcosis, and toxoplasmosis [see Warnings and Precautions (5.4)].

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

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Lymphopenia and Other Hematologic Toxicity

Inform patients that MAVENCLAD decreases lymphocyte counts and may also decrease counts of other blood cells. A blood test should be obtained before starting a treatment course, 2and 6 months after start of treatment in each treatment course, periodically thereafter, and when clinically needed. Advise patients to keep all appointments for lymphocyte monitoring during and after MAVENCLAD treatment [see Dosage and Administration (2.5) and Warnings and Precautions (5.3, 5.5)].

Infections

Inform patients that infections, some of which were serious, have been reported in patients receiving MAVENCLAD. Instruct patients to notify their healthcare provider promptly if fever or other signs of infection such as aching, painful muscles, headache, generally feeling unwell or loss of appetite occur while on therapy orafter a course of treatment [see Warnings and Precautions (5.4)].

MEDICATION GUIDE

Additions and/or revisions underlined:

MAVENCLAD can cause serious side effects, including:

  • serious infections such as:
    • Infections caused by bacteria, viruses, parasites, or fungi that may be life-threatening or cause death.

12/06/2023 (SUPPL-7)

Approved Drug Label (PDF)

8 Use in Specific Populations

8.1 Pregnancy

Additions and/or revisions underlined:

There is a pregnancy safety study that monitors the pregnancy and infant outcomes following exposure to cladribine. Physicians and patients are encouraged to report pregnancies of women with multiple sclerosis exposed to oral cladribine during pregnancy or within 6 months before conception as well as pregnancies fathered by men with multiple sclerosis who had taken oral cladribine within 6 months before conception by calling EMD Serono’s Adverse Event reporting line at 1-800-283-8088 ext. 5563 or by faxing 1-781- 681-2961.

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

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Advise patients that there is a pregnancy safety study that monitors the pregnancy outcomes in women exposed to cladribine during pregnancy or within 6 months before conception, as well as pregnancies fathered by men exposed to cladribine within 6 months before conception, and they can report the pregnancy by calling EMD Serono’s Adverse Event reporting line at 1-800-283-8088 ext. 5563 or by faxing 1-781-681-2961 [see Use in Specific Populations (8.1)].

MEDICATION GUIDE

Additions and/or revisions underlined:

    • Ask your healthcare provider which contraception method is right for you.

  • MAVENCLAD Pregnancy Safety Study
    • For women treated with MAVENCLAD: if you become pregnant while taking MAVENCLAD or during the 6 months after your last dose.

    • For men treated with MAVENCLAD with a female partner: if your partner becomes pregnant while you are taking MAVENCLAD or during the 6 months after your last dose.

The purpose of this program is to assess the effect of MAVENCLAD exposure on pregnancy and infant outcomes. Either you or your healthcare provider can report your information by calling 1-800-283-8088 ext. 5563 or by fax 1-781-681-2961.

09/19/2022 (SUPPL-6)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.4 Infections

Additions and/or revisions underlined:

Herpes Virus Infections

… Vaccination of patients who are seronegative for varicella zoster virus is recommended prior to initiation of MAVENCLAD. Administer live attenuated or live vaccines at least 4 to 6 weeks prior to starting MAVENCLAD. Vaccination with zoster vaccine recombinant, adjuvanted is recommended for patients who are seropositive to VZV, either prior to or during MAVENCLAD treatment, including when their lymphocyte counts are less than or equal to 500 cells per microliter.

Vaccinations

Administer all immunizations (except as noted for VZV) according to immunization guidelines prior to starting MAVENCLAD.

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

PATIENT COUNSELING INFORMATION

Infections

Newly added information:

Advise patients that some vaccines containing live virus (live attenuated vaccines) should be avoided during and after treatment with MAVENCLAD. Advise patients to complete any live or live-attenuated vaccinations at least 4 to 6 weeks prior to initiation of MAVENCLAD. Instruct patients to contact their healthcare provider prior to receiving any vaccinations.