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Carglumic Acid Dailymed

  1. Human Prescription
  2. Archived
  3. Novitium Pharma LLC

Generic: carglumic acid

Carglumic Acid tablet, for suspension - image

  1. FDA Adverse Reactions

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Dosage and Administration, Renal Impairment (2.3)                                                8/2021

1 Indications & Usage



Carglumic acid tablets for oral suspension is a carbamoyl phosphate synthetase 1 (CPS 1) activator indicated in pediatric and adult patients as:
  • Adjunctive therapy to standard of care for the treatment of acute hyperammonemia due to N-acetylglutamate synthase (NAGS) deficiency. (1.1)
  • Maintenance therapy for the treatment of chronic hyperammonemia due to NAGS deficiency. (1.1)

1.1 Acute and Chronic Hyperammonemia due to N-acetylglutamate Synthase (NAGS) Deficiency


Carglumic acid tablets for oral suspension are indicated in pediatric and adult patients as:
  • Adjunctive therapy to standard of care for the treatment of acute hyperammonemia due to NAGS deficiency.
  • Maintenance therapy for the treatment of chronic hyperammonemia due to NAGS deficiency.

2 Dosage & Administration



Acute Hyperammonemia due to NAGS deficiency (2.1)
  • The recommended pediatric and adult dosage is 100 mg/kg/day to 250 mg/kg/day divided into 2 to 4 doses and rounded to the nearest 100 mg.

 Chronic Hyperammonemia due to NAGS deficiency (2.1)
  • The recommended pediatric and adult dosage is 10 mg/kg/day to 100 mg/kg/day divided into 2 to 4 doses and rounded to the nearest 100 mg.

Therapeutic Monitoring for NAGS Deficiency (2.1)
  • Closely monitor plasma ammonia and titrate dosage to maintain the ammonia level within normal range for the patient’s age, taking into consideration their clinical condition.

See Full Prescribing Information for Instructions on Dosage Adjustment in Patients with Renal Impairment (2.3)

Preparation and Administration (2.4)
  • Disperse Carglumic acid tablets for oral suspension in water. Do not swallow whole or crushed.
  • Take immediately before meals or feedings.
  • For additional instructions on preparation and administration orally or through a nasogastric tube or gastrostomy tube, see Full Prescribing Information.


Treatment Initiation

Initiate carglumic acid tablets for oral suspension treatment as soon as the diagnosis of NAGS deficiency is suspected, which may be as soon as at birth, and managed by a physician and medical team experienced in metabolic disorders.

Dosage for Acute Hyperammonemia due to NAGS Deficiency
  • The recommended daily dosage of carglumic acid tablets for oral suspension in pediatric and adult patients for acute hyperammonemia due to NAGS deficiency is 100 mg/kg to 250 mg/kg.
  • Divide the daily dosage into 2 to 4 doses and round to the nearest 100 mg (i.e., half of a carglumic acid tablet for oral suspension).
  • During acute hyperammonemic episodes, administer carglumic acid tablets for oral suspension with other ammonia lowering therapies, such as alternate pathway medications, hemodialysis, and protein restriction.

Dosage for Chronic Hyperammonemia due to NAGS Deficiency
  • The recommended daily dosage of Carglumic acid tablets for oral suspension in pediatric and adult patients for chronic hyperammonemia due to NAGS deficiency is 10 mg/kg to 100 mg/kg.
  • Divide the daily dosage into 2 to 4 doses and round to the nearest 100 mg (i.e., half of a Carglumic acid tablet for oral suspension).
  • During maintenance therapy, the concomitant use of other ammonia lowering therapies and protein restriction may be needed based on plasma ammonia levels.

Therapeutic Monitoring

Closely monitor plasma ammonia levels. Titrate the Carglumic acid tablets for oral suspension dosage to maintain the plasma ammonia level within the normal range for the patient’s age, taking into consideration their clinical condition (e.g., nutritional requirements, protein intake, growth parameters, etc.).

Adjust the recommended dosage in patients with moderate or severe renal impairment [see Dosage and Administration (2.3)].

2.3 Dosage Adjustment in Patients with Renal Impairment


No dosage adjustment is warranted in patients with mild renal impairment (eGFR 60-89 mL/min/1.73 m2). The recommended dosage of Carglumic acid tablets for oral suspension in patients with moderate or severe renal impairment is shown below.

                 
     Moderate Renal Impairment (eGFR 30-59 mL/min/1.73 m2)    Severe Renal Impairment  (eGFR ≤ 29 mL/min/1.73 m2)  
 Acute Hyperammonemia due to NAGS Deficiency   50 mg/kg/day to 125 mg/kg/day divided into 2 to 4 doses and rounded to the nearest 50 mg (i.e., one-quarter of a Carglumic acid tablet for oral suspension)   15 mg/kg/day to 60 mg/kg/day divided into 2 to 4 doses and rounded to the nearest 50 mg (i.e., one-quarter of a Carglumic acid tablet for oral suspension) 
 Chronic Hyperammonemia  due to NAGS Deficiency   5 mg/kg/day to 50 mg/kg/day divided into 2 to 4 doses and rounded to the nearest 50 mg (i.e., one-quarter of a Carglumic acid tablet for oral suspension)   2 mg/kg/day to 25 mg/kg/day divided into 2 to 4 doses and rounded to the nearest 50 mg (i.e., one-quarter of a Carglumic acid tablet for oral suspension) 

2.4 Preparation and Administration


Overview
  • Disperse Carglumic acid tablets for oral suspension in water. Do not swallow whole or crushed.
  • Carglumic acid tablets for oral suspension do not dissolve completely in water, and undissolved particles of the tablet may remain in the mixing container.
  • Take Carglumic acid tablets for oral suspension immediately before meals or feedings.
  • The Carglumic acid tablet suspension has a slightly acidic taste.
  • For all preparations, use in foods or liquids other than water has not been studied and is not recommended.

Oral Administration

For oral administration, administer Carglumic acid tablets for oral suspension as follows:
  • Add a minimum of 2.5 mL of water into a small cup for each Carglumic acid tablet for oral suspension or each ½ or ¼ Carglumic acid tablet for oral suspension needed for the prescribed dose.
  • Add the Carglumic acid tablets for oral suspension to the water in the cup.
  • Carefully stir the tablet and water mixture.
  • Swallow the mixture immediately. Pieces of the tablet may remain in the cup.
  • Rinse the cup with additional water and swallow the mixture immediately. Repeat as needed until no pieces of the tablet are left in the cup.

Use of an Oral Syringe for Oral Administration

For administration via an oral syringe, administer Carglumic acid tablets for oral suspension as follows:
  • Add a minimum of 2.5 mL of water into a small cup for each Carglumic acid tablet for oral suspension or each ½ or ¼ Carglumic acid tablet for oral suspension needed for the prescribed dose.
  • Add the Carglumic acid tablets for oral suspension to the water in the cup.
  • Carefully stir the tablet and water mixture.
  • Draw up the mixture in an oral syringe and administer immediately. Pieces of the tablet may remain in the oral syringe.
  • Refill the oral syringe with a minimum volume of water (1 mL to 2 mL) and administer immediately.
  • Flush the oral syringe again, as needed, until no pieces of the tablet are left in the syringe.

Use of Nasogastric Tube (NG Tube) or Gastrostomy Tube (G-Tube) for Feeding Tube Administration

For patients who have a NG tube or G-tube in place, administer Carglumic acid tablets for oral suspension as follows:
  • Add a minimum of 2.5 mL of water into a small cup for each Carglumic acid tablet for oral suspension or each ½ or ¼ Carglumic acid tablet for oral suspension needed for the prescribed dose.
  • Add the Carglumic acid tablets for oral suspension to the water in the cup.
  • Carefully stir the tablet and water mixture.
  • Draw up the mixture into a catheter-tip syringe.
  • Administer the mixture immediately through the NG tube or G-tube. Pieces of the tablet may remain in the catheter-tip syringe or the feeding tube.
  • Flush immediately with 1 to 2 mL of additional water to clear the NG tube or G-tube.
  • Flush the NG tube or G-tube again, as needed, until no pieces of the tablet are left in the syringe or the feeding tube.

3 Dosage Forms & Strengths


Carglumic Acid Tablet for Oral Suspension is a white to off-white elongated 200 mg tablet for oral suspension, functionally scored with 3 lines for splitting into 4 equal portions, and coded "120" on one side and ''N" on other side.


Tablets for oral suspension: 200 mg, functionally scored. (3)

4 Contraindications


None


None. (4)

6 Adverse Reactions


  • NAGS deficiency: Most common adverse reactions (≥13%) are vomiting, abdominal pain, pyrexia, tonsillitis, anemia, diarrhea, ear infection, infections, nasopharyngitis, hemoglobin decreased, and headache. (6.1)

To report SUSPECTED ADVERSE REACTIONS, contact Novitium Pharma LLC at 1-855-204-1431, or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1 Clinical Trials Experience


Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

Acute and Chronic Hyperammonemia due to NAGS Deficiency

In a retrospective case series of 23 NAGS deficiency patients treated with Carglumic acid tablets for oral suspension, 17 of the 23 patients reported any adverse reaction. The most common adverse reactions (occurring in ≥ 13% of patients) were vomiting, abdominal pain, pyrexia, tonsillitis, anemia, diarrhea, ear infection, infections, nasopharyngitis, hemoglobin decreased, and headache.

Table 1 summarizes adverse reactions occurring in 2 or more patients with NAGS deficiency treated with Carglumic acid tablets for oral suspension in the retrospective case series (≥ 9%).

Table 1: Adverse Reactions Reported in ≥ 2 Patients with NAGS deficiency Treated with Carglumic acid tablets for oral suspension in the Retrospective Case Series
Adverse Reaction Number of Patients (N) (%)
Vomiting 6 (26)
Abdominal pain 4 (17)
Pyrexia 4 (17)
Tonsillitis 4 (17)
Anemia 3 (13)
Diarrhea 3 (13)
Ear infection 3 (13)
Infections 3 (13)
Nasopharyngitis 3 (13)
Hemoglobin decreased 3 (13)
Headache 3 (13)
Dysgeusia 2 (9)
Asthenia 2 (9)
Hyperhidrosis 2 (9)
Influenza 2 (9)
Pneumonia 2 (9)
Weight decreased 2 (9)
Anorexia 2 (9)
Somnolence 2 (9)
Rash 2 (9)

6.2 Postmarketing Experience


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

Psychiatric disorders: mania

Skin and subcutaneous tissue disorders: pruritus, rash including rash erythematous, rash maculopapular, rash pustular

8 Use In Specific Populations


8.1 Pregnancy


Risk Summary

Although rare case reports of Carglumic acid tablets for oral suspension use in pregnant women are insufficient to inform a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes, untreated NAGS deficiency can result in irreversible neurologic damage and death in pregnant women [see Clinical Considerations].

In an animal reproduction study, decreased survival and growth occurred in offspring born to rats that received carglumic acid at a dose approximately 38 times the maximum reported human maintenance dose.

The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, miscarriage, 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

Disease-associated maternal and/or embryo/fetal risk

Pregnant women with urea cycle disorders may experience an increase in catabolic stress which can trigger a hyperammonemic crisis both in the intrapartum and in the post-partum (3-14 days post-partum) periods. Maternal complications related to hyperammonemic crisis can include neurological impairment, coma and in some cases death.

Data

Animal Data

No effects on embryo-fetal development were observed in pregnant rats treated with up to 2000 mg/kg/day (approximately 38 times the maximum reported human maintenance dose [100 mg/kg/day] based on AUC [area under the plasma concentration-time curve]) from two weeks prior to mating through organogenesis or in pregnant rabbits treated with up to 1000 mg/kg/day (approximately 6 times the maximum reported human maintenance dose [100 mg/kg/day] based on AUC) during organogenesis.

In a pre-and post-natal developmental study, female rats received oral carglumic acid from organogenesis through lactation at doses of 500 mg/kg/day and 2000 mg/kg/day. Decreased growth of offspring was observed at 500 mg/kg/day and higher (approximately 38 times the maximum reported human maintenance dose [100 mg/kg/day] based on AUC), and reduction in offspring survival during lactation was observed at 2000 mg/kg/day (approximately 38 times the maximum reported human maintenance dose [100 mg/kg/day] based on AUC). No effects on physical and sexual development, learning and memory, or reproductive performance were observed through maturation of the surviving offspring at maternal doses up to 2000 mg/kg/day. The high dose (2000 mg/kg/day) produced maternal toxicity (impaired weight gain and approximately 10% mortality).

8.2 Lactation


Risk Summary

It is not known whether carglumic acid is present in human milk. There are no available data on the effects of carglumic acid on the breastfed infant or the effects on milk production. Carglumic acid is present in milk from treated rats. When a drug is present in animal milk, it is likely that the drug will be present in human milk.

The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for Carglumic acid tablets for oral suspension and any potential adverse effects on the breastfed child from Carglumic acid tablets for oral suspension or from the underlying maternal condition.

8.4 Pediatric Use


The safety and effectiveness of Carglumic acid tablets for oral suspension for the treatment of pediatric patients (birth to 17 years of age) with acute or chronic hyperammonemia due to NAGS deficiency have been established, and the information on these uses are discussed throughout the labeling. There are insufficient data to determine if there is a difference in clinical or biochemical responses between adult and pediatric patients treated with Carglumic acid tablets for oral suspension.

8.5 Geriatric Use


Clinical studies of Carglumic acid tablets for oral suspension did not include patients 65 years of age and older.

8.6 Renal Impairment


Plasma concentrations of carglumic acid increased in patients with renal impairment [see Clinical Pharmacology (12.3)]. Reduce the Carglumic acid tablets for oral suspension dosage in patients with moderate or severe renal impairment [see Dosage and Administration (2.3)]. The pharmacokinetics of carglumic acid have not been evaluated in patients with end stage renal disease.

10 Overdosage


One patient treated with 650 mg/kg/day of Carglumic acid tablets for oral suspension developed symptoms resembling monosodium glutamate intoxication-like syndrome and characterized by tachycardia, profuse sweating, increased bronchial secretions, increased body temperature, and restlessness. These symptoms resolved upon reduction of the dose.

11 Description


Carglumic acid tablets for oral suspension contain 200 mg of carglumic acid. Carglumic acid, the active substance, is a carbamoyl phosphate synthetase 1 (CPS 1) activator and is soluble in boiling water, slightly soluble in cold water, and practically insoluble in organic solvents.

Chemically, carglumic acid is N-carbamoyl-L-glutamic acid or (2S)-2-(carbamoylamino) pentanedioic acid, with a molecular weight of 190.16.

The structural formula is:

Molecular Formula: C6H10N2O5

The inactive ingredients of Carglumic acid tablets for oral suspension are croscarmellose sodium, microcrystalline cellulose, colloidal silicon dioxide, sodium lauryl sulfate, sodium stearyl fumarate, magnesium stearate, mannitol and povidone.

12 Clinical Pharmacology


12.1 Mechanism of Action


Carglumic acid is a synthetic structural analogue of N-acetylglutamate (NAG) which is produced from glutamate and acetyl-CoA in a reaction catalyzed by N-acetylglutamate synthase (NAGS), a mitochondrial liver enzyme. NAG acts as the essential allosteric activator of carbamoyl phosphate synthetase 1 (CPS 1), a mitochondrial liver enzyme which catalyzes the first reaction of the urea cycle. The urea cycle, whose role is the disposition of ammonia, includes a series of biochemical reactions in the liver resulting in the conversion of ammonia into urea, which is then excreted through the urine. Carglumic acid acts as a CPS1 activator, improves or restores the function of the urea cycle, and facilitates ammonia detoxification and urea production.

12.2 Pharmacodynamics


In a retrospective review of the clinical course in 23 patients with NAGS deficiency, carglumic acid reduced plasma ammonia levels within 24 hours when administered with and without concomitant ammonia lowering therapies. No dose-response relationship has been identified.

Cardiac Electrophysiology

The effect of carglumic acid was evaluated in a Phase 1, randomized study in 76 healthy volunteers. The study suggests a lack of clinically relevant QT prolongation effect at the highest therapeutic dose level (250 mg/kg/day).

12.3 Pharmacokinetics


The pharmacokinetics of carglumic acid in healthy subjects following an intravenous (IV) infusion over 2 hours at 8 mg/kg or an oral administration at 100 mg/kg are summarized in Table 3.

Table 3: Mean (SD) Pharmacokinetic Parameter Values of Carglumic Acid in Healthy Subjects
 PK parameter   IV infusion 8mg/kg (N=10)      Oral 100 mg/kg (N=12) 
 Cmax (ng/mL)   8613 (558)   3284 (321) 
 Tmax (hr)#    2 (1-2)   3 (2-4) 
 AUC (ng*hr/mL)   24501 (1613)   31426 (2150) 
 T1/2 (hr)   31 (3)   25 (2) 
 CL (L/hr/kg)   0.34 (0.02)   N/A 
 Vd (L/kg)   15 (1)   N/A 

#Median (range); N/A, not applicable

 

Absorption

Following an oral administration of Carglumic acid tablets for oral suspension 100 mg/kg in healthy subjects, the absolute bioavailability was approximately 10%.

Distribution

Carglumic acid is not bound to plasma proteins.

Elimination

Carglumic acid is predominantly excreted by the kidneys as unchanged product.

Metabolism

A proportion of carglumic acid may be metabolized by the intestinal bacterial flora.

The likely end product of carglumic acid metabolism is carbon dioxide, eliminated through the lungs.

Excretion

Following an oral administration of radiolabeled Carglumic acid tablets for oral suspension at 100 mg/kg, 9% of the dose is excreted unchanged in the urine and up to 60% of the dose is recovered unchanged in the feces.

Specific Populations

Patients with Renal Impairment

 The pharmacokinetics of carglumic acid in subjects with renal impairment were compared with healthy subjects with normal renal function following oral administration of a single dose of Carglumic acid tablets for oral suspension 40 mg/kg or 80 mg/kg. The Cmax and AUC0-t of carglumic acid are summarized in Table 4. The geometric mean ratio (90% CI) of AUC0-t in subjects with mild, moderate, and severe renal impairment relative to those in their matched control subjects with normal renal function were approximately 1.3 (1.01, 1.68), 2.0 (1.65, 2.54), and 4.6 (3.36, 6.34) respectively [see Dosage and Administration (2.3)].

Table 4: Mean (SD) Cmax and AUC0- t of Carglumic Acid Following Single Oral Dose Administration of Carglumic acid tablets for oral suspension 80 mg/kg or 40 mg/kg in Subjects with Renal Impairment and Matched Healthy Control Subjects with Normal Renal Function 
 PK Parameters    Normal Renal Function 1a: eGFR ≥ 90 mL/min/1.73m2 (N=8)    Mild Renal Impairment: eGFR 60-89 mL/min/1.73m2 (N=8)    Moderate Renal Impairment: eGFR 30-59 mL/min/1.73m2 (N=8)    Normal Renal Function 1b: eGFR ≥ 90 mL/min/1.73m2 (N=8)    Severe Renal Impairment: eGFR ≤ 29 mL/min/1.73m2 (N=8)  
 80 mg/kg    40 mg/kg  
 Cmax (ng/mL)   2983 (552)   4310 (1937)   6129 (1854)   1890 (901)   8377 (3815) 
 AUC0-t (ng*hr/mL)   28313 (6204)   39545 (12109)   79766 (19708)   20212 (6186)   143075 (55910) 

Treatment groups 1a and 1b represent two separate matched control groups of healthy subjects with normal renal function.

Drug Interaction Studies

Based on in vitro studies, carglumic acid is not an inducer of CYP1A1/2, CYP2B6, CYP2C, and CYP3A4/5 enzymes, and not an inhibitor of CYP1A2, CYP2A6, CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6, CYP2E1, and CYP3A4/5 enzymes.

 Based on in vitro studies, carglumic acid is a substrate of the human OAT1 transporter. Carglumic acid is not a substrate of MDR1, BCRP, MATE1, MATE2-K, OAT1, OAT3, OATP1B1, OATP1B3, OCT1, and OCT2. Carglumic acid is not an inhibitor of human BSEP, BCRP, MDR1, MATE1, MATE2-K, OAT1, OAT3, OATP1B1, OATP1B3, OCT1, and OCT2 transporters.

13 Nonclinical Toxicology


13.1 Carcinogenesis & Mutagenesis & Impairment Of Fertility


The carcinogenic potential of carglumic acid was assessed in a 2-year carcinogenicity study in rats. Carglumic acid was not tumorigenic at oral doses up to 1000 mg/kg/day (approximately 34 times the maximum reported human maintenance dose [100 mg/kg/day] based on AUC).

Carglumic acid was negative in the Ames test, chromosomal aberration assay in human lymphocytes, and the in vivo micronucleus assay in rats.

There were no effects on fertility or reproductive performance in female rats at oral doses up to 2000 mg/kg/day (approximately 38 times the maximum reported human maintenance dose [100 mg/kg/day] based on AUC). In a separate study, mating and fertility were unaffected in male rats at oral doses up to 1000 mg/kg/day (approximately 34 times the maximum reported human maintenance dose [100 mg/kg/day] based on AUC).

14 Clinical Studies


14.1 Acute and Chronic Hyperammonemia due to NAGS Deficiency


The efficacy of Carglumic acid tablets for oral suspension in the treatment of acute and chronic hyperammonemia due to NAGS deficiency was evaluated in a retrospective case series of 23 NAGS deficiency patients treated with Carglumic acid tablets for oral suspension over a median duration of 7.9 years (range 0.6 to 20.8 years). For acute treatment, patients received Carglumic acid tablets for oral suspension at 100 mg/kg/day to 250 mg/kg/day primarily administered in 2 to 4 divided doses. For maintenance treatment, the dosage was reduced over time based on plasma ammonia level and clinical response.

The baseline characteristics of the patient population are shown in Table 5.

Table 5: Baseline Characteristics of 23 NAGS Deficiency Patients Treated with Carglumic acid tablets for oral suspension
 Patients N=23 
 Sex   Male   14 (61%) 
 Female   9 (39%) 
 Age at initiation of Carglumic acid tablets for oral suspension therapy (years)   Mean (SD)   2 (4) 
 Min-Max   0-13 
 Age groups at initiation of Carglumic acid tablets for oral suspension therapy   <30 days   9 (39%) 
 >30 days - 11 months   9 (39%) 
 ≥1 - 13 years   5 (22%) 
 NAGS gene mutations by DNA testing   Homozygous   14 (61%) 
 Heterozygous   4 (17%) 
 Not available   5 (22%) 
 Patients current treatment status   On-going   18 (78%) 
 Discontinued   5 (22%) 

The clinical and biochemical data in the 23-patient case series were retrospectively collected, unblinded, and uncontrolled and preclude formal statistical testing. Short-term efficacy was evaluated using mean and median change in plasma ammonia levels from baseline to days 1 to 3. Persistence of the effect was evaluated using long-term mean and median change in plasma ammonia level. Of the 23 NAGS deficiency patients in the case series, 13 patients had documented plasma ammonia levels prior to Carglumic acid tablets for oral suspension treatment and after long-term treatment with Carglumic acid tablets for oral suspension and were evaluable. Table 5 summarizes the plasma ammonia levels at baseline, days 1 to 3 post- Carglumic acid tablets for oral suspension treatment, and long-term Carglumic acid tablets for oral suspension treatment (mean 8 years) in the 13 evaluable patients.

All 13 patients had increased plasma ammonia levels at baseline (mean 271 micromol/L; normal range: 5 to 50 micromol/L). By day 3 and with long-term treatment, normal plasma ammonia levels were attained (Table 6).

Table 6: Plasma Ammonia Levels in NAGS Deficiency Patients at Baseline and After Treatment with Carglumic acid tablets for oral suspension
Timepoint Patients (N = 13) Ammonia level (micromol/L)
Baseline (prior to first dose of Carglumic acid tablets for oral suspension) N 13
Mean (SD) 271 (359)
Median 157
Range 72-1428
Missing Data 0
Day 1 N 10
Mean (SD) 181 (358)
Median 65
Range 25-1190
Missing Data 3
Day 2 N 8
Mean (SD) 69 (78)
Median 44
Range 11-255
Missing Data 5
Day 3 N 5
Mean (SD) 27 (11)
Median 25
Range 12-42
Missing Data 8
Long-term treatment (mean duration 8 years; median duration 6 years; range 1-16 years based on last available value while on Carglumic acid tablets for oral suspension treatment) N 13
Mean (SD) 23 (7)
Median 24
Range 9-34
Missing Data 0

The mean plasma ammonia level at baseline and the decline that is observed after treatment with Carglumic acid tablets for oral suspension in 13 evaluable patients with NAGS deficiency is illustrated in Figure 1.

Figure 1: Mean Plasma Ammonia in 13 Evaluable NAGS Deficiency Patients at Baseline and After Treatment with Carglumic acid tablets for oral suspension



16 How Supplied/storage And Handling


How Supplied

Carglumic Acid Tablet for Oral Suspension is supplied as a white to off-white elongated 200 mg tablet for oral suspension, functionally scored with 3 lines for splitting into 4 equal portions, and coded "120" on one side and ''N" on other side.

Carglumic Acid Tablets for Oral Suspension are available as 60 tablets in a high density polyethylene bottle with child resistant cap and desiccant unit.

NDC 70954-120-10                Bottles of 60 tablets

Storage

Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature].

After first opening of the container:
  • Do not refrigerate, store at room temperature between 20° to 25°C (68° to 77°F).
  • Keep the container tightly closed between openings in order to protect from moisture.
  • Write the date of opening on the tablet container.
  • Do not use after the expiration date stated on the tablet container.
  • Discard one month after first opening.

17 Patient Counseling Information


Advise the patient to read the FDA-approved patient labeling (Instructions for Use).

Instruct the patient on the following:

Preparation and Administration [see Dosage and Administration (2.3)]  
  • Disperse Carglumic acid tablets for oral suspension in water. Do not swallow whole or crushed.
  • Take Carglumic acid tablets for oral suspension immediately before meals or feedings.
  • Carglumic acid tablets for oral suspension dispersed in water can be administered orally or via a nasogastric tube or gastrostomy tube as described in the Instructions for Use.

Storage [see How Supplied/Storage and Handling (16)]
  • Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature].
  • After first opening of the container: do not refrigerate, store at room temperature between 20° to 25°C (68° to 77°F). Keep the container tightly closed in order to protect from moisture. Write the date of opening on the tablet container.
  • Discard one month after first opening. Do not use after the expiration date stated on the tablet container.

All Trademarks are the property of their respective owners.

Manufactured by:

Novitium Pharma LLC

70 Lake Drive, East Windsor

New Jersey 08520

 

Issued: 10/2021

LB4191-01

Spl Patient Package Insert Section


Instructions For Use


Carglumic Acid Tablets for Oral Suspension

Important information:
  • Carglumic acid tablets for oral suspension must be mixed in water before taking. Carglumic acid tablets for oral suspension should not be mixed in any other food or liquid.
  • Do not swallow Carglumic acid tablets for oral suspension whole.
  • Do not crush Carglumic acid tablets for oral suspension.
  • Take Carglumic acid tablets for oral suspension right before meals or feedings.
  • The Carglumic acid tablet for oral suspension and water mixture has a slightly sour taste.

You may need to ask your healthcare provider or pharmacist for a medicine cup to measure the correct amount of water you will need to prepare the dose of Carglumic acid tablets for oral suspension.

The Carglumic acid tablet for oral suspension tablet has 3 lines used for splitting the tablet into 4 equal parts in order to get the prescribed dose. Ask your healthcare provider if you have any questions about how to split the tablet the right way or have any questions about the prescribed dose.

Taking Carglumic acid tablets for oral suspension by mouth using a cup:

Children and Adults

1. Add a minimum of 2.5 mL of water into a small cup for each Carglumic acid tablet for oral suspension, or each ½ or ¼ Carglumic acid tablet for oral suspension, needed for the prescribed dose. For example:
  • If the prescribed dose is 2 Carglumic acid tablets for oral suspension, add a minimum of 5 mL of water into the cup.
  • If the prescribed dose is 2 and a ¼ Carglumic acid tablets for oral suspension, add a minimum of 7.5 mL of water into the cup.       
  • If the prescribed dose is 2 and a ½ Carglumic acid tablets for oral suspension, add a minimum of 7.5 mL of water into the cup.
  • Ask your healthcare provider if you are not sure of how much water you should use for the prescribed dose of Carglumic acid tablets for oral suspension.

2. Place the prescribed number of Carglumic acid tablets for oral suspension into the water in the cup. 3. Carefully stir the Carglumic acid tablet for oral suspension and water mixture in the cup to avoid spilling the mixture. Carglumic acid tablets for oral suspension do not dissolve completely in water. 4.Swallow the Carglumic acid tablets for oral suspension and water mixture right away. 5. Pieces of the tablet may remain in the cup. Add more water to the cup to rinse the cup and swallow the mixture right away. 6. Repeat step 5 until there are no pieces of the tablet left in the cup.

Taking Carglumic acid tablets for oral suspension by mouth using an oral syringe:

Children

1. Add a minimum of 2.5 mL of water into a small cup for each Carglumic acid tablet for oral suspension, or each ½ or ¼ Carglumic acid tablet for oral suspension, needed for the prescribed dose. For example:
  • If the prescribed dose is 2 Carglumic acid tablets for oral suspension, add a minimum of 5 mL of water into the cup.  
  • If the prescribed dose is 2 and a ¼ Carglumic acid tablets for oral suspension, add a minimum of 7.5 mL of water into the cup.
  • If the prescribed dose is 2 and a ½ Carglumic acid tablets for oral suspension, add a minimum of 7.5 mL of water into the cup.
  • Ask your healthcare provider if you are not sure of how much water you should use for the prescribed dose of Carglumic acid tablets for oral suspension.

2. Place the prescribed number of Carglumic acid tablets for oral suspension into the water in the cup.

3. Carefully stir the Carglumic acid tablets for oral suspension and water mixture in the cup to avoid spilling the mixture. Carglumic acid tablets for oral suspension do not dissolve completely in water.

4. Draw up all of the Carglumic acid tablets for oral suspension and water mixture in the cup into an oral syringe.

5. Give your child the Carglumic acid tablets for oral suspension and water mixture right away by placing the tip of the oral syringe along the inner cheek of their mouth, on either the right or left side. Slowly push all the way down on the plunger to give the medicine.

6. Pieces of the tablet may remain in the oral syringe. Refill the oral syringe with a minimum of 1 mL to 2 mL of water, and give your child the mixture right away.

7. Repeat step 6 until there are no pieces of the tablet left in the oral syringe.

Giving Carglumic acid tablets for oral suspension through a nasogastric (NG) or gastrostomy tube (G-tube):

Children and Adults

1.Add a minimum of 2.5 mL of water into a small cup for each Carglumic acid tablet for oral suspension, or each ½ or ¼ Carglumic acid tablet for oral suspension, needed for the prescribed dose. For example:
  • If the prescribed dose is 2 Carglumic acid tablets for oral suspension, add a minimum of 5 mL of water into the cup.
  • If the prescribed dose is 2 and a ¼ Carglumic acid tablets for oral suspension, add a minimum of 7.5 mL of water into the cup.      
  • If the prescribed dose is 2 and a ½ Carglumic acid tablets for oral suspension, add a minimum of 7.5 mL of water into the cup.
  • Ask your healthcare provider if you are not sure of how much water you should use for the prescribed dose of Carglumic acid tablets for oral suspension.

2. Place the prescribed number of Carglumic acid tablets for oral suspension into the water in the cup.

3. Carefully stir the Carglumic acid tablets for oral suspension and water mixture in the cup to avoid spilling the mixture. Carglumic acid tablets for oral suspension do not dissolve completely in water.

4. Draw up all of the Carglumic acid tablets for oral suspension and water mixture in the cup into a catheter-tip syringe.

5. Connect the catheter-tip syringe to the NG tube or G-tube.

6. Give the Carglumic acid tablet for oral suspension and water mixture through the NG tube or G-tube right away.

7. Pieces of the tablet may remain in the catheter-tip syringe or NG tube or G-tube.

8. Refill the catheter-tip syringe with 1 mL to 2 mL of water and flush the NG tube or G-tube right away.

9. Repeat step 8 until there are no pieces of the tablet left in the catheter-tip syringe or NG tube or G-tube.

How should I store Carglumic acid tablets for oral suspension?
  • Before opening, store Carglumic acid tablets for oral suspension at 20° to 25°C (68° to 77°F) in the container it comes in.
  • After opening, store Carglumic acid tablets for oral suspension at room temperature between 20° to 25°C (68° to 77°F). Do not store Carglumic acid tablets for oral suspension in a refrigerator after opening.
    • Keep Carglumic acid tablets for oral suspension in a tightly closed container to protect the tablets from moisture.
    • Write the date the Carglumic acid tablets for oral suspension container is opened on the container label. Throw away any unused tablets one month after opening the tablet container.
  • Do not use Carglumic acid tablets for oral suspension after the expiration date on the tablet container.
  • Keep Carglumic acid tablets for oral suspension and all medicines out of the reach of children.

This Instructions for Use has been approved by the U.S. Food and Drug Administration.

All Trademarks are the property of their respective owners.

Manufactured by:

Novitium Pharma LLC

70 Lake Drive, East Windsor

New Jersey 08520

Issued: 10/2021

LB4191-01

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DISCLAIMER:

"This tool does not provide medical advice, and is for informational and educational purposes only, and is not a substitute for professional medical advice, treatment or diagnosis. Call your doctor to receive medical advice. If you think you may have a medical emergency, please dial 911."

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