Drug Safety-related Labeling Changes (SrLC)

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Drug Safety-related Labeling Changes (SrLC) Database

ANDA	Abbreviated New Drug Application
BLA	Biologics License Application
CDER	Center for Drug Evaluation and Research
MG	Medication Guide
NDA	New Drug Application
PCI	Patient Counseling Information
PI	Patient Information
PLR	Physician Labeling Rule
PLLR	Pregnancy and Lactation Labeling Rule
Italics	For the most part, italics indicate an FDA comment such as: Additions and/or revisions underlined These italics usually appear at the beginning of the section. In some cases, italics may be an inherent part of the label, and will most often appear in the body of the section.
Underlines	Any text that is underlined indicates text that has been added or revised. There are exceptions where underlining occurs in a section subtitle or heading. This is the case when there is just one word underlined in the body of the text.

Sections

BW	Box Warning
WP	Warnings and Precautions all in one section (PLR-format) Warnings as one section (pre-PLR format) Precautions as one section (pre-PLR format)
AR	Adverse Reactions (in pre-PLR format, this may be a subheading under precautions).
DI	Drug Interactions (in pre-PLR format, this may be a subheading under precautions).
USP	Use in Specific Populations (Inclusive on one or more of the following: Pregnancy; Lactation (PLLR- format); Nursing Mothers (pre-PLLR format); Females and Males of Reproductive Potential (PLLR format only); Pediatric Use, Geriatric Use, Renal Impairment, Hepatic Impairment, Sex, Race (these last six may be a subheading of precautions if label in pre-PLLR format.
PCI/PI/MG	Patient Counseling Information (PLR format only) - summarizes the information that a health care provider should convey to a patient (or caregiver when applicable) when a counseling discussion is taking place (e.g., a physician prescribing a drug during an office visit, a nurse providing discharge instructions at a hospital, or a pharmacist conveying information at a pharmacy). Patient Information - FDA approved patient labeling. Medication Guide - paper handouts that come with many prescription medicines. The guides address issues that are specific to particular drugs and drug classes, and they contain FDA-approved information that can help patients avoid serious adverse events.

Only NDAs and CDER regulated BLAs are included in this database. ANDAs are not included.

Applications that remain active, even if the product has been discontinued, undergo safety-related labeling changes.

CRESEMBA (NDA-207501)

(ISAVUCONAZONIUM SULFATE)

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

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12/08/2023 (SUPPL-13)

Approved Drug Label (PDF)

6 Adverse Reactions

6.1 Clinical Trials Experience

Additions and/or revisions underlined:

Clinical Trials Experience in Adult Patients

A total of 403 adult patients were exposed to CRESEMBA in two clinical trials.

…

Table 3 includes selected adverse reactions which were reported at an incidence of greater than or equal to 5% during CRESEMBA therapy in Trial 1.

…

Clinical Trials Experience in Pediatric Patients

The clinical safety of CRESEMBA was assessed in 77 pediatric patients who received at least one dose of intravenous or oral CRESEMBA in two uncontrolled studies. Fifteen (19.5%) subjects were in the 1 to < 6 years old cohort, 30 subjects (39.0%) were in the 6 to < 12 years old cohort, and 32 subjects (41.6%) were in the 12 to < 18 years old cohort. The duration of treatment ranged from 1 to 181 days with a median duration of treatment of 15 days. The most frequently reported adverse reactions were diarrhea (26%), abdominal pain (23%), vomiting (21%), elevated liver chemistry tests (18%), rash (14%), nausea (13%), pruritus (13%) and headache (12%). In general, adverse reactions (including serious adverse reactions and adverse reactions leading to permanent discontinuation of CRESEMBA) were similar to those reported in adults.

7 Drug Interactions

Addition of Vincristine, Recommendations, and Comments to table 5, The Effect of CRESEMBA on the Pharmacokinetics of Other Drugs; please refer to label for complete information

8 Use in Specific Populations

8.4 Pediatric Use

Newly added information:

Invasive Aspergillosis

The safety and effectiveness of CRESEMBA for injection for the treatment of invasive aspergillosis have been established in pediatric patients 1 year of age and older. The safety and effectiveness of CRESEMBA capsules for the treatment of invasive aspergillosis have been established in pediatric patients 6 year of age and older weighing 16 kg and greater. Use of CRESEMBA in this age group for treatment of invasive aspergillosis is supported by evidence from one adequate and well-controlled trial in adult patients and additional pharmacokinetic and safety data in pediatric patients 1 year of age and older [see Clinical Pharmacology (12.3)]. Adverse reactions in this pediatric population were similar to those reported in the adult population [see Adverse Reactions (6.1)]. The safety and effectiveness of CRESEMBA capsules for treatment of invasive aspergillosis have not been established in pediatric patients younger than 6 years of age or who weigh less than 16 kg because the oral route of administration was not assessed in this pediatric patient age cohort.

The safety and effectiveness of CRESEMBA for treatment of invasive aspergillosis in pediatric patients less than 1 year of age have not been established.

Invasive Mucormycosis

The safety and effectiveness of CRESEMBA for injection for the treatment of invasive mucormycosis have been established in pediatric patients 1 year of age and older. The safety and effectiveness of CRESEMBA capsules for the treatment of invasive mucormycosis have been established in pediatric patients 6 year of age and older weighing 16 kg and greater. Use of CRESEMBA in this age group for treatment of invasive mucormycosis is supported by one open-label trial in adult patients with invasive mucormycosis, a retrospective review of survival data for adult patients with untreated invasive mucormycosis, and additional pharmacokinetic and safety data in pediatric patients 1 year of age and older [see Clinical Pharmacology (12.3)]. Adverse reactions in this pediatric population were similar to those reported in the adult population [see Adverse Reactions (6.1)]. The safety and effectiveness of CRESEMBA capsules for treatment of invasive mucormycosis have not been established in pediatric patients younger than 6 years of age who weigh less than 16 kg because the oral route of administration was not assessed in this pediatric patient age cohort.

The safety and effectiveness of CRESEMBA for treatment of invasive mucormycosis in pediatric patients less than 1 year of age have not been established.

8.5 Geriatric Use

Additions and/or revisions underlined:

…

No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out.

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

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Important Administration Instructions

…

Drug Interactions

…

Pregnancy

…

Allergic Reactions

…

PATIENT INFORMATION

Extensive changes; please refer to label for complete information

12/09/2021 (SUPPL-8)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.3 Hypersenstivity Reactions

Additions and/or revisions underlined:

Anaphylactic Reactions

Anaphylactic reactions, with fatal outcome, have been reported during treatment with CRESEMBA. Symptoms including dyspnea, hypotension, generalized erythema with flushing, and urticaria have been reported in such cases often soon after the initiation of treatment.

Severe Skin Reactions

Severe skin reactions, such as Stevens-Johnson syndrome, have been reported during treatment with other azole antifungal agents.

Discontinue CRESEMBA if a patient develops an anaphylactic or severe cutaneous adverse reaction and initiate supportive treatment as needed. There is no information regarding cross-sensitivity between CRESEMBA and other azole antifungal agents though cross-sensitivity between other triazole agents has been reported. When prescribing CRESEMBA to patients with hypersensitivity to other azoles, monitor for signs and symptoms of hypersensitivity reactions.

6 Adverse Reactions

Newly added subsection:

6.2 Post-Marketing Experience

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

Immune system disorders: anaphylactic reaction

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

PATIENT COUNSELING INFORMATION

Newly added information:

Advise patients to inform their physician immediately if they have ever had an allergic reaction to isavuconazole or other antifungal medicines such as ketoconazole, fluconazole, itraconazole, posaconazole, or voriconazole. Advise patients to discontinue CRESEMBA and seek immediate medical attention if any signs or symptoms of severe allergic reaction occur [see Warnings and Precautions (5.3)].

PATIENT INFORMATION

What are the possible side effects of CRESEMBA? CRESEMBA may cause serious side effects, including:

Additions and/or revisions underlined:

severe allergic reactions.
- Severe allergic reactions including death can happen in some people taking CRESEMBA. Symptoms of a severe allergic reaction may include:
  - swelling of your face, lips, mouth, or tongue
  - trouble breathing
  - wheezing
  - severe itching
  - skin rash redness, or swelling
  - dizziness or fainting
  - fast heartbeat or pounding in your chest
  - sweating

05/18/2021 (SUPPL-5)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.4 Embryo-Fetal Toxicity

Additions and/or revisions underlined

…

Isavuconazonium chloride administration was associated with dose-related increases in the incidences of rudimentary cervical ribs in rats and rabbits at 30 and 45 mg/kg, respectively, doses equivalent to about 0.2 and 0.1 of the human maintenance dose based on AUC comparisons. In rats, dose-related increases in the incidences of zygomatic arch fusion and supernumerary ribs/rudimentary supernumerary ribs were also noted at 30 mg/kg and above, equivalent to one fifth the maintenance human dose based on AUC comparisons [see Use in Specific Populations (8.1)].

…

8 Use in Specific Populations

8.1 Pregnancy

Additions and/or revisions underlined

Risk Summary

… In animal reproduction studies, perinatal mortality was increased in the offspring of pregnant rats dosed orally with isavuconazonium sulfate at approximately 0.5 times the clinical exposure during pregnancy through the weaning period. In animal studies when isavuconazonium chloride was administered by oral gavage to pregnant rats and rabbits during organogenesis at exposures corresponding to less than the human maintenance dose, increases in the incidences of multiple skeletal abnormalities, including rudimentary cervical ribs and fused zygomatic arches, were observed (see Data). Advise pregnant women of the potential risk to a fetus [see Warnings and Precautions (5.4)].

…

Data

Animal Data

Isavuconazonium chloride administration during organogenesis (gestational days 6-17 in rats and gestational days 6-18 in rabbits) was associated with dose-related increases in the incidences of rudimentary cervical ribs in rats and rabbits at 30 and 45 mg/kg, respectively, equivalent to about 0.2 and 0.1 times the clinical exposure based on AUC comparisons. In rats, dose-related increases in the incidences of zygomatic arch fusion and supernumerary ribs/rudimentary supernumerary ribs were also noted at 30 mg/kg and above, equivalent to 0.2 times the human AUC. Skeletal abnormalities have also been observed in embryo-fetal development studies of other azole antifungal agents.

Isavuconazonium sulfate increased perinatal mortality in the pups when orally administered to pregnant rats during pregnancy and lactation (gestational day 6 through postpartum day 20) at doses up to 90 mg/kg/day [approximately 0.5 times the clinical exposure based on AUC comparison]. No effect on the duration of pregnancy or delivery was seen in the pups at this same dose.

12/09/2019 (SUPPL-4)

Approved Drug Label (PDF)

5 Warnings and Precautions

5.4 Embryo-Fetal Toxicity

Additions and/or revisions underlined:

Based on findings from animal reproduction studies, CRESEMBA may cause fetal harm when administered to a pregnant woman. Advise pregnant women of the potential risk to a fetus …

… Isavuconazonium chloride administration was associated with dose-related increases in the incidences of rudimentary cervical ribs in rats and rabbits at 30 and 45 mg/kg, respectively, doses equivalent to about one fifth and one tenth of the human maintenance dose based on AUC comparisons. In rats, dose-related increases in the incidences of zygomatic arch fusion and supernumerary ribs/rudimentary supernumerary ribs were also noted at 30 mg/kg and above, equivalent to one fifth the maintenance human dose based on AUC comparisons [see Use in Specific Populations (8.1)].

Advise females of reproductive potential to use an effective method of contraception during treatment with CRESEMBA and for 28 days after the final dose [see Use in Specific Populations (8.3)].

8 Use in Specific Populations

8.1 Pregnancy

PLLR conversion; additions and/or revisions underlined:

Based on findings from animal studies, CRESEMBA may cause fetal harm when administered to a pregnant woman. There are no available human data on the use of CRESEMBA in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes. In animal reproduction studies, perinatal mortality was increased in the offspring of pregnant rats dosed orally with isavuconazonium sulfate at 90 mg/kg/day (less than half the maintenance human dose based on AUC comparisons) during pregnancy through the weaning period. In animal studies when isavuconazonium chloride was administered by oral gavage to pregnant rats and rabbits during organogenesis at exposures corresponding to less than the human maintenance dose, increases in the incidences of multiple skeletal abnormalities, including rudimentary cervical ribs and fused zygomatic arches, were observed (see Data). Advise pregnant women of the potential risk to a fetus [see Warnings and Precautions (5.4)].

The estimated background risk of major birth defects and miscarriage for the indicated populations are 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.

Data

Animal Data

Isavuconazonium chloride administration during organogenesis (gestational days 6-17 in rats and gestational days 6-18 in rabbits) was associated with dose-related increases in the incidences of rudimentary cervical ribs in rats and rabbits at 30 and 45 mg/kg, respectively, doses equivalent to about one fifth and one tenth of the clinical exposures based on AUC comparisons. In rats, dose-related increases in the incidences of zygomatic arch fusion and supernumerary ribs/rudimentary supernumerary ribs were also noted at 30 mg/kg and above, equivalent to one fifth the human AUC. Skeletal abnormalities have also been observed in embryo-fetal development studies of other azole antifungal agents.

Isavuconazonium sulfate increased perinatal mortality in the pups when orally administered to pregnant rats during pregnancy and lactation (gestational day 6 through postpartum day 20) at doses up to 90 mg/kg/day (less than half the maintenance human dose based on AUC comparisons). No effect on the duration of pregnancy or delivery was seen in the pups at this same dose.

8.2 Lactation

PLLR conversion; additions and/or revisions underlined:

Risk Summary

There are no data on the presence of isavuconazole in human milk, the effects on the breastfed infant or the effects on milk production. Isavuconazole was present in the milk of lactating rats following intravenous administration. When a drug is present in animal milk, it is likely that the drug will be present in human milk. Therefore, breastfeeding should be discontinued during treatment with CRESEMBA.

PLLR conversion; newly added subsection:

8.3 Females and Males of Reproductive Potential

Contraception

CRESEMBA may cause embryo-fetal harm when administered to pregnant women [see Warnings and Precautions (5.4) and Use in Specific Populations (8.1)]. Advise female patients of reproductive potential to use effective contraception during treatment with CRESEMBA and for 28 days after the final dose.

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

PATIENT INFORMATION

Reformatted and revised to align with changes to the Prescribing Information; additions and/or revisions underlined:

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

are pregnant or plan to become pregnant. CRESEMBA may harm your unborn baby. Talk to your healthcare provider if you are pregnant or plan to become pregnant. Women who can become pregnant should use effective birth control while taking CRESEMBA and for 28 days after the last CRESEMBA dose. Talk to your healthcare provider about birth control methods that may be right for you.

Instructions on opening CRESEMBA capsules blister packaging:

Do not puncture the pocket containing the desiccant.
Do not swallow or use the desiccant.