Nucleoside Metabolic Inhibitor

Clofarabine

Approved 6 Nov 2017IntravenousSolution

The FDA lists this product in 13 strengths and forms.

Indications

Clofarabine injection is indicated for the treatment of pediatric patients 1 to 21 years old with relapsed or refractory acute lymphoblastic leukemia after at least two prior regimens. Clofarabine injection is a nucleoside metabolic inhibitor indicated for the treatment of pediatric patients 1 to 21 years old with relapsed or refractory acute lymphoblastic leukemia after at least two prior regimens. ( 1 )

Contraindications

None.

None. ( 4 )

Warnings and precautions

Myelosuppression: May be severe and prolonged. Monitor complete blood counts and platelet counts during clofarabine injection therapy. ( 5.1 ) Hemorrhage: Serious and fatal cerebral, gastrointestinal and pulmonary hemorrhage. Monitor platelets and coagulation parameters and treat accordingly. ( 5.2 ) Infections: Severe and fatal sepsis as a result of bone marrow suppression. Monitor for signs and symptoms of infection; discontinue clofarabine injection and treat promptly.

( 5.3 ) Tumor Lysis syndrome: Anticipate, monitor for signs and symptoms and treat promptly. ( 5.4 ) Systemic Inflammatory Response Syndrome (SIRS) or Capillary Leak Syndrome: Monitor for and discontinue clofarabine injection immediately if suspected. ( 5.5 ) Venous Occlusive Disease of the Liver: Monitor for and discontinue clofarabine injection if suspected. ( 5.6 ) Hepatotoxicity: Severe and fatal hepatotoxicity. Monitor liver function, for signs and symptoms of hepatitis and hepatic failure.

Discontinue clofarabine injection immediately for Grade 3 or greater liver enzyme and/or bilirubin elevations. ( 5.7 ) Renal Toxicity: Increased creatinine and acute renal failure; monitor renal function and interrupt or discontinue clofarabine injection. ( 5.8 ) Enterocolitis: Serious and fatal enterocolitis, occurring more frequently within 30 days of treatment and with combination chemotherapy. Monitor patients for signs and symptoms of enterocolitis and treat promptly ( 5.9 ) Skin Reactions: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), including fatal cases.

Indications

Warnings and precautions

Pregnancy and breastfeeding

8.1Pregnancy Risk Summary

In animal reproduction studies, intravenous administration of clofarabine to pregnant rats and rabbits during organogenesis at doses approximately 0.2 to 1-times the maximum recommended human dose of 52 mg/m 2 based on body surface area (BSA) resulted in embryo-fetal mortality, alterations to growth, and structural abnormalities (see Data). Advise pregnant women of the potential risk to a fetus. There are no available data on clofarabine use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes.

Clofarabine should be used during pregnancy only if the potential benefits to the mother outweigh the potential risks, including those to the fetus. 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, 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 Intravenous administration of clofarabine to pregnant rats during organogenesis (gestation days [GD] 7 to 17) at doses of 1, 3 or 9 mg/kg/day (equivalent to 6, 18, 54 mg/m 2 /day) resulted in maternal toxicities at the 9 mg/kg dose, as indicated by reduced body weights and food consumption. Developmental toxicity (i.e., reduced fetal body weights and increased postimplantation loss) and increased incidences of external, soft tissue, and skeletal malformations and variations (including retarded ossification) were observed at 9 mg/kg/day (54 mg/m 2 ; approximately equivalent to the recommended human dose based on BSA).

Altered ossification patterns (extra metacarpal or metatarsal ossification) were observed in single fetuses at lower doses of clofarabine (1 and 3 mg/kg/day; 0.1- and 0.3-times the recommended human dose based on BSA). When clofarabine was administered intravenously to pregnant rabbits during organogenesis (GD 6 to 18) at doses of 0.1, 0.3, or 1 mg/kg/day (equivalent to 1.2, 3.6, 12 mg/m 2 /day), developmental toxicity (i.e., reduced fetal body weights and increased postimplantation loss) and increased incidences of external, soft tissue, and skeletal malformations and variations (including retarded ossification) were observed at the 1 mg/kg/day dose (12 mg/m 2 ; 0.2-times the recommended human dose based on BSA).

Alterations in ossification patterns (increase in the average numbers of ossified thoracic vertebrae and rib pairs, and reduction in the average number of forepaw metacarpals) and abdominal wall defect were observed at 0.3 mg/kg/day (3.6 mg/m 2 ; 0.1-times the recommended human dose based on BSA).

Adverse reactions

The following clinically significant adverse reactions are discussed in greater detail in other sections of the label:

Myelosuppression [see Warnings and Precautions ( 5.1 )]
Hemorrhage [see Warnings and Precautions ( 5.2 )]
Serious Infections [see Warnings and Precautions ( 5.3 )]
Hyperuricemia (tumor lysis syndrome) [see Warnings and Precautions ( 5.4 )]
Systemic Inflammatory Response Syndrome (SIRS) and Capillary Leak Syndrome [see Warnings and Precautions ( 5.5 )]
Venous Occlusive Disease of the Liver [see Warnings and Precautions ( 5.6 )]
Hepatotoxicity [see Warnings and Precautions ( 5.7 )]
Renal Toxicity [see Warnings and Precautions ( 5.8 )]
Enterocolitis [see Warnings and Precautions ( 5.9 )]
Skin Reactions [see Warnings and Precautions ( 5.10 )] Most common adverse reactions (≥25%): vomiting, nausea, diarrhea, febrile neutropenia, pruritus, headache, bacteremia, pyrexia, rash, tachycardia, abdominal pain, chills, fatigue, anorexia, pain in extremity, hypotension, epistaxis, and petechiae. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Dr. REDDY’S LABORATORIES Inc., at 1-888-375-3784 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1Clinical 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. The data described below reflect exposure to clofarabine in 115 pediatric patients with relapsed or refractory Acute Lymphoblastic Leukemia (ALL) (70 patients) or Acute Myelogenous Leukemia (AML) (45 patients).

In total, 115 pediatric patients treated in clinical trials received the recommended dose of clofarabine 52 mg/m 2 daily x 5. The median number of cycles was 2. The median cumulative amount of clofarabine received by pediatric patients during all cycles was 540 mg. Most common adverse reactions (≥25%): vomiting, nausea, diarrhea, febrile neutropenia, pruritus, headache, bacteremia, pyrexia, rash, tachycardia, abdominal pain, chills, fatigue, anorexia, pain in extremity, hypotension, epistaxis, and petechiae.

Table 1 lists adverse reactions by System Organ Class, including severe or life threatening (NCI CTCAE Grade 3 or Grade 4), reported in ≥5% of the 115 patients in the 52 mg/m 2 /day dose group (pooled analysis of pediatric patients with ALL and AML). More detailed information and follow-up of certain events is given below. Table 1: Most Commonly Reported (≥5% Overall) Adverse Reactions by System Organ Class (N=115 pooled analysis) System Organ Class¹ Adverse Reaction (MedDRA Preferred Term)¹ ALL/AML (All Grades, N =1 1 5 ) Worst Grade ( NCICommon Terminology Criteria) ¹ 3 4 5 N % N % N % N % Blood and Lymphatic System Disorders Febrile neutropenia 63 55 59 51 3 3 . .

Neutropenia 11 10 3 3 8 7 . . Cardiac Disorders Pericardial effusion 9 8 . . 1 1 . . Tachycardia 40 35 6 5 . . . . Gastrointestinal Disorders Abdominal pain 40 35 8 7 . . . . Abdominal pain upper 9 8 1 1 . . . . Diarrhea 64 56 14 12 . . . . Gingival or mouth bleeding 20 17 8 7 1 1 . . Nausea 84 73 16 14 1 1 . . Oral mucosal petechiae 6 5 4 4 . . . . Proctalgia 9 8 2 2 . . . . Stomatitis 8 7 1 1 . . . . Vomiting 90 78 9 8 1 1 . .

GeneralDisorders and Administration Site Conditions Asthenia 12 10 1 1 1 1 . . Chills 39 34 3 3 . . . . Fatigue 39 34 3 3 2 2 . . Irritability 11 10 1 1 . . . . Mucosal inflammation 18 16 2 2 . . . . Edema 14 12 2 2 . . . . Pain 17 15 7 6 1 1 . . Pyrexia 45 39 16 14 . . . . HepatobiliaryDisorder Jaundice 9 8 2 2 . . . . Infections and Infestations Bacteremia 10 9 10 9 . . . . Candidiasis 8 7 1 1 . . . . Catheter related infection 14 12 13 11 . . . .

Cellulitis 9 8 7 6 . . . . Clostridium colitis 8 7 6 5 . . . . Herpes simplex 11 10 6 5 . . . . Herpes zoster 8 7 6 5 . . . . Oral candidiasis 13 11 2 2 . . . . Pneumonia 11 10 6 5 1 1 1 1 Sepsis, including septic shock 19 17 6 5 4 4 9 8 Staphylococcal bacteremia 7 6 5 4 1 1 . . Staphylococcal sepsis 6 5 5 4 1 1 . . Upper respiratory tract infection 6 5 1 1 . . . . Metabolismand Nutrition Disorders Anorexia 34 30 6 5 8 7 . .

Musculoskeletal andConnective TissueDisorders Arthralgia 10 9 3 3 . . . . Back pain 12 10 3 3 . . . . Bone pain 11 10 3 3 . . . . Myalgia 16 14 . . . . . . Pain in extremity 34 30 6 5 . . . . Neoplasms Benign, Malignant and Unspecified (incl. cysts and polyps) Tumor lysis syndrome 7 6 7 6 . . . . Nervous System Disorders Headache 49 43 6 5 . . . . Lethargy 12 10 1 1 . . . . Somnolence 11 10 1 1 . . . . Psychiatric Disorders Agitation 6 5 1 1 . . . .

Anxiety 24 21 2 2 . . . . Renal and UrinaryDisorders Hematuria 15 13 2 2 . . . . Respiratory, Thoracic and Mediastinal Disorders Dyspnea 15 13 6 5 2 2 . . Epistaxis 31 27 15 13 . . . . Pleural effusion 14 12 4 4 2 2 . . Respiratory distress 12 10 5 4 4 4 1 1 Tachypnea 10 9 4 4 1 1 . . Skin and SubcutaneousTissue Disorders Erythema 13 11 . . . . . . Palmar-plantarerythrodysesthesiasyndrome 18 16 8 7 . . . . Petechiae 30 26 7 6 . . . .

Pruritus 49 43 1 1 . . . . Rash 44 38 8 7 . . . . Rash pruritic 9 8 . . . . . . Vascular Disorders Flushing 22 19 . . . . . . Hypertension 15 13 6 5 . . . . Hypotension 33 29 13 11 9 8 . . ¹ Patients with more than one adverse reaction (MedDRA preferred term) within a SOC are counted only once in the SOC totals. Patients with more than one occurrence of the same adverse reaction (MedDRA preferred term) are counted only once within that reaction and at the highest severity grade.

The following adverse reactions were reported in <5% of the 115 pediatric patients with ALL or AML: Gastrointestinal Disorders : cecitis, pancreatitis Hepatobiliary Disorders : hyperbilirubinemia Immune System Disorders : hypersensitivity Infections and Infestations : bacterial infection, Enterococcal bacteremia, Escherichia bacteremia, Escherichia sepsis, fungal infection, fungal sepsis, gastroenteritis adenovirus, infection, influenza, parainfluenzae virus infection, pneumonia fungal, pneumonia primary atypical, Respiratory syncytial virus infection, sinusitis, staphylococcal infection Investigations : blood creatinine increased Psychiatric Disorders : mental status change Respiratory, Thoracic and Mediastinal Disorder : pulmonary edema Table 2 lists the incidence of treatment-emergent laboratory abnormalities after clofarabine administration at 52 mg/m 2 among pediatric patients with ALL and AML (N=115).

Table 2: Incidence of Treatment-Emergent Laboratory Abnormalities after Clofarabine Administration Parameter Any Grade Grade 3 or higher Anemia (N=114) 83% 75% Leukopenia (N=114) 88% 88% Lymphopenia (N=113) 82% 82% Neutropenia (N=113) 64% 64% Thrombocytopenia (N=114) 81% 80% Elevated Creatinine (N=115) 50% 8% Elevated SGOT (N=100) 74% 36% Elevated SGPT (N=113) 81% 43% Elevated Total Bilirubin (N=114) 45% 13%

6.2Postmarketing Experience

The following adverse reactions have been identified during post-approval use of clofarabine injection. 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. Gastrointestinal disorders: gastrointestinal hemorrhage including fatalities. Metabolism and nutrition disorders: hyponatremia Skin and subcutaneous tissue disorders: Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN) (including fatal cases).

Clofarabine

Indications

Contraindications

Warnings and precautions

Two medicines in one question?

Clofarabine

Indications

Contraindications

Warnings and precautions

Two medicines in one question?

5.1Myelosuppression

5.2Hemorrhage Serious

5.3Infections

5.4Tumor Lysis Syndrome Administration

5.5Systemic Inflammatory Response Syndrome (SIRS) and Capillary Leak Syndrome

5.6Venous Occlusive Disease of the Liver

5.7Hepatotoxicity Severe

5.8Renal Toxicity

5.9Enterocolitis Fatal

5.10Skin Reactions Serious

Pregnancy and breastfeeding

8.1Pregnancy Risk Summary

Adverse reactions

6.1Clinical Trials Experience

6.2Postmarketing Experience

Composition

Strengths and forms

Official product information

At a glance