View Drug - Plerixafor
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Plerixafor

Generic: PLERIXAFOR

100%
Basic Information
Manufacturer
Novadoz Pharmaceuticals LLC
Product Type
HUMAN PRESCRIPTION DRUG
Route of Administration
SUBCUTANEOUS
FDA Set ID
f26effc5-2a22-441f-91ac-e131ee1c9886
Indications & Usage
1 INDICATIONS AND USAGE Plerixafor injection is indicated in combination with filgrastim to mobilize hematopoietic stem cells (HSCs) to the peripheral blood for collection and subsequent autologous transplantation in patients with non-Hodgkin’s lymphoma (NHL) or multiple myeloma (MM).

Plerixafor injection, a hematopoietic stem cell mobilizer, is indicated in combination with filgrastim to mobilize hematopoietic stem cells (HSCs) to the peripheral blood for collection and subsequent autologous transplantation in patients with non-Hodgkin’s lymphoma or multiple myeloma.
Adverse Reactions
6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed elsewhere in the labeling: Anaphylactic shock and hypersensitivity reactions [ see Warnings and Precautions (5.1) ] Potential for tumor cell mobilization in leukemia patients [ see Warnings and Precautions (5.2) ] Increased circulating leukocytes and decreased platelet counts [ see Warnings and Precautions (5.3) ] Potential for tumor cell mobilization [ see Warnings and Precautions (5.4) ] Splenic enlargement [ see Warnings and Precautions (5.5) ] Most common adverse reactions (≥ 10%): diarrhea, nausea, fatigue, injection site reactions, headache, arthralgia, dizziness, and vomiting.

( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Novadoz Pharmaceuticals LLC at 1-855-668-2369 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.

The most common adverse reactions (≥10%) reported in patients who received plerixafor in conjunction with filgrastim regardless of causality and more frequent with plerixafor than placebo during HSC mobilization and apheresis were diarrhea, nausea, fatigue, injection site reactions, headache, arthralgia, dizziness, and vomiting.

Safety data for plerixafor in combination with filgrastim were obtained from two randomized placebo-controlled studies (301 patients) and 10 uncontrolled studies (242 patients).

Patients were primarily treated with plerixafor at daily doses of 0.24 mg/kg SC.

Median exposure to plerixafor in these studies was 2 days (range 1 to 7 days).

In the two randomized studies in patients with NHL and MM, a total of 301 patients were treated in the plerixafor and filgrastim group and 292 patients were treated in the placebo and filgrastim group.

Patients received daily morning doses of filgrastim 10 mcg/kg for 4 days prior to the first dose of plerixafor 0.24 mg/kg SC or placebo and on each morning prior to apheresis.

The adverse reactions that occurred in ≥5% of the patients who received plerixafor regardless of causality and were more frequent with plerixafor than placebo during HSC mobilization and apheresis are shown in Table 2.

Table 2: Adverse Reactions in ≥5% of Non-Hodgkin’s Lymphoma and Multiple Myeloma Patients Receiving Plerixafor and More Frequent than Placebo during HSC Mobilization and Apheresis Percent of Patients (%) Plerixafor and Filgrastim (n=301) Placebo and Filgrastim (n=292) All Grades a Grade 3 Grade 4 All Grades Grade 3 Grade 4 Gastrointestinal disorders Diarrhea 37 <1 0 17 0 0 Nausea 34 1 0 22 0 0 Vomiting 10 <1 0 6 0 0 Flatulence 7 0 0 3 0 0 General disorders and administration site conditions Injection site reactions 34 0 0 10 0 0 Fatigue 27 0 0 25 0 0 Musculoskeletal and connective tissue disorders Arthralgia 13 0 0 12 0 0 Nervous system disorders Headache 22 <1 0 21 1 0 Dizziness 11 0 0 6 0 0 Psychiatric disorders Insomnia 7 0 0 5 0 0 a Grades based on criteria from the World Health Organization (WHO) In the randomized studies, 34% of patients with NHL or MM had mild to moderate injection site reactions at the site of subcutaneous administration of plerixafor.

These included erythema, hematoma, hemorrhage, induration, inflammation, irritation, pain, paresthesia, pruritus, rash, swelling, and urticaria.

Mild to moderate allergic reactions were observed in less than 1% of patients within approximately 30 min after plerixafor administration, including one or more of the following: urticaria (n=2), periorbital swelling (n=2), dyspnea (n=1) or hypoxia (n=1).

Symptoms generally responded to treatments (e.g., antihistamines, corticosteroids, hydration or supplemental oxygen) or resolved spontaneously.

Vasovagal reactions, orthostatic hypotension, and/or syncope can occur following subcutaneous injections.

In plerixafor oncology and healthy volunteer clinical studies, less than 1% of subjects experienced vasovagal reactions following subcutaneous administration of plerixafor doses ≤0.24 mg/kg.

The majority of these events occurred within 1 hour of plerixafor administration.

Because of the potential for these reactions, appropriate precautions should be taken.

Other adverse reactions in the randomized studies that occurred in <5% of patients but were reported as related to plerixafor during HSC mobilization and apheresis included abdominal pain, hyperhidrosis, abdominal distention, dry mouth, erythema, stomach discomfort, malaise, hypoesthesia oral, constipation, dyspepsia, and musculoskeletal pain.

Hyperleukocytosis: In clinical trials, white blood cell counts of 100,000/mcL or greater were observed, on the day prior to or any day of apheresis, in 7% of patients receiving plerixafor and in 1% of patients receiving placebo.

No complications or clinical symptoms of leukostasis were observed.

6.2 Postmarketing Experience In addition to adverse reactions reported from clinical trials, the following adverse reactions have been reported from postmarketing experience with plerixafor.

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.

Blood and Lymphatic System: Splenomegaly and splenic rupture Immune System Disorders: Anaphylactic reactions, including anaphylactic shock Psychiatric Disorders: Abnormal dreams and nightmares