Doxil

Overdose

Acute overdosage with doxorubicin HCl causes increased risk of severe mucositis, leukopenia, and thrombocytopenia.

Contraindications

DOXIL is contraindicated in patients who have a history of severe hypersensitivity reactions, including anaphylaxis, to doxorubicin HCl .

Undesirable effects

The following adverse reactions are discussed in more detail in other sections of the labeling.

  • Cardiomyopathy
  • Infusion-Related Reactions
  • Hand-Foot Syndrome
  • Secondary Oral Neoplasms

The most common adverse reactions ( > 20%) observed with DOXIL are asthenia, fatigue, fever, nausea, stomatitis, vomiting, diarrhea, constipation, anorexia, hand-foot syndrome, rash and neutropenia, thrombocytopenia and anemia.

Adverse Reactions In Clinical Trials

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

The safety data reflect exposure to DOXIL in 1310 patients including: 239 patients with ovarian cancer, 753 patients with AIDS-related Kaposi's sarcoma, and 318 patients with multiple myeloma.

The following tables present adverse reactions from clinical trials of single-agent DOXIL in ovarian cancer and AIDS-Related Kaposi's sarcoma.

Patients With Ovarian Cancer

The safety data described below are from Trial 4, which included 239 patients with ovarian cancer treated with DOXIL 50 mg/m once every 4 weeks for a minimum of four courses in a randomized, multicenter, open-label study. In this trial, patients received DOXIL for a median number of 3.2 months (range 1 day to 25.8 months). The median age of the patients is 60 years (range 27 to 87), with 91% Caucasian, 6% Black, and 3% Hispanic or Other.

Table 3 presents the hematologic adverse reactions from Trial 4.

Table 3: Hematologic Adverse Reactions in Trial 4

  DOXIL Patients
(n=239)
Topotecan Patients
(n=235)
Neutropenia
  500 - < 1000/mm³ 8% 14%
   < 500/mm³ 4.2% 62%
Anemia
  6.5 - < 8 g/dL 5% 25%
   < 6.5 g/dL 0.4% 4.3%
Thrombocytopenia
  10,000 - < 50,000/mm³ 1.3% 17%
   < 10,000/mm³ 0.0% 17%

Table 4 presents the non-hematologic adverse reactions from Trial 4.

Table 4: Non-Hematologic Adverse Reactions in Trial 4

Non-Hematologic Adverse
Reaction 10% or Greater
DOXIL (%) treated
(n=239)
Topotecan (%) treated
(n=235)
All grades Grades 3-4 All grades Grades 3-4 All grades
Body as a Whole
  Asthenia 40 7 52 8
  Fever 21 0.8 31 6
  Mucous Membrane Disorder 14 3.8 3.4 0
  Back Pain 12 1.7 10 0.9
  Infection 12 2.1 6 0.9
  Headache 11 0.8 15 0
Digestive
  Nausea  46 5 63 8
  Stomatitis 41 8 15 0.4
  Vomiting 33 8 44 10
  Diarrhea 21 2.5 35 4.2
  Anorexia 20 2.5 22 1.3
  Dyspepsia 12 0.8 14 0
Nervous
  Dizziness 4.2 0 10 0
Respiratory
  Pharyngitis 16 0 18 0.4
  Dyspnea 15 4.1 23 4.3
  Cough increased 10 0 12 0
Skin and Appendages
  Hand-foot syndrome 51 24 0.9 0
  Rash 29 4.2 12 0.4
  Alopecia 19 N/A 52 N/A

The following additional adverse reactions were observed in patients with ovarian cancer with doses administered every four weeks (Trial 4).

Incidence 1% to 10%

Cardiovascular: vasodilation, tachycardia, deep vein thrombosis, hypotension, cardiac arrest.

Digestive: oral moniliasis, mouth ulceration, esophagitis, dysphagia, rectal bleeding, ileus.

Hematologic and Lymphatic: ecchymosis.

Metabolic and Nutritional: dehydration, weight loss, hyperbilirubinemia, hypokalemia, hypercalcemia, hyponatremia.

Nervous: somnolence, dizziness, depression.

Respiratory: rhinitis, pneumonia, sinusitis, epistaxis.

Skin and Appendages: pruritus, skin discoloration, vesiculobullous rash, maculopapular rash, exfoliative dermatitis, herpes zoster, dry skin, herpes simplex, fungal dermatitis, furunculosis, acne.

Special Senses: conjunctivitis, taste perversion, dry eyes.

Urinary: urinary tract infection, hematuria, vaginal moniliasis.

Patients With AIDS-Related Kaposi's Sarcoma

The safety data described is based on the experience reported in 753 patients with AIDS-related Kaposi's sarcoma (KS) enrolled in four open-label, uncontrolled trials of DOXIL administered at doses ranging from 10 to 40 mg/m² every 2 to 3 weeks. Demographics of the population were: median age 38.7 years (range 24-70); 99% male; 88% Caucasian, 6% Hispanic, 4% Black, and 2% Asian/other/unknown. The majority of patients were treated with 20 mg/m² of DOXIL every 2 to 3 weeks with a median exposure of 4.2 months (range 1 day to 26.6 months). The median cumulative dose was 120 mg/m² (range 3.3 to 798.6 mg/m²); 3% received cumulative doses of greater than 450 mg/m².

Disease characteristics were: 61% poor risk for KS tumor burden, 91% poor risk for immune system, and 47% poor risk for systemic illness; 36% were poor risk for all three categories; median CD4 count 21 cells/mm (51% less than 50 cells/mm³); mean absolute neutrophil count at study entry approximately 3,000 cells/mm³.

Of the 693 patients with concomitant medication information, 59% were on one or more antiretroviral medications [35% zidovudine (AZT), 21% didanosine (ddI), 16% zalcitabine (ddC), and 10% stavudine (D4T)]; 85% received PCP prophylaxis (54% sulfamethoxazole/trimethoprim); 85% received antifungal medications (76% fluconazole); 72% received antivirals (56% acyclovir, 29% ganciclovir, and 16% foscarnet) and 48% patients received colony-stimulating factors (sargramostim/filgrastim) during their course of treatment.

Adverse reactions led to discontinuation of treatment in 5% of patients with AIDS-related Kaposi's sarcoma and included myelosuppression, cardiac adverse reactions, infusion-related reactions, toxoplasmosis, HFS, pneumonia, cough/dyspnea, fatigue, optic neuritis, progression of a non-KS tumor, allergy to penicillin, and unspecified reasons. Tables 5 and 6 summarize adverse reactions reported in patients treated with DOXIL for AIDS-related Kaposi's sarcoma in a pooled analysis of the four trials.

Table 5: Hematologic Adverse Reactions Reported in Patients With AIDS-Related Kaposi's Sarcoma

  Patients With Refractory or Intolerant AIDS-Related Kaposi's Sarcoma
(n=74*)
Total Patients With AIDS-Related Kaposi's Sarcoma
(n=720†)
Neutropenia
   < 1000/mm³ 46% 49%
   < 500/mm³ 11% 13%
Anemia
   < 10 g/dL 58% 55%
   < 8 g/dL 16% 18%
Thrombocytopenia
   < 150,000/mm³ 61% 61%
   < 25,000/mm³ 1.4% 4.2%
*This includes a subset of subjects who were retrospectively identified as having disease progression on prior systemic combination chemotherapy (at least 2 cycles of a regimen containing at least 2 of 3 treatments: bleomycin, vincristine or vinblastine, or doxorubicin) or as being intolerant to such therapy.
†This includes only subjects with AIDS-KS who had available data from the 4 pooled trials.

Table 6: Non-Hematologic Adverse Reactions Reported in ≥ 5% of Patients With AIDS-Related Kaposi's Sarcoma

Adverse Reactions Patients With Refractory or Intolerant AIDS-Related Kaposi's Sarcoma
(n=77*)
T otal Patients With AIDS-Related Kaposi's Sarcoma
(n=705†)
Nausea 18% 17%
Asthenia 7% 10%
Fever 8% 9%
Alopecia 9% 9%
Alkaline Phosphatase Increase 1.3% 8%
Vomiting 8% 8%
Diarrhea 5% 8%
Stomatitis 5% 7%
Oral Moniliasis 1.3% 6%
*This includes a subset of subjects who were retrospectively identified as having disease progression on prior systemic combination chemotherapy (at least 2 cycles of a regimen containing at least 2 of 3 treatments: bleomycin, vincristine or vinblastine, or doxorubicin) or as being intolerant to such therapy.
†This includes only subjects with AIDS-KS who had available adverse event data from the 4 pooled trials.

The following additional adverse reactions were observed in 705 patients with AIDS-related Kaposi's sarcoma.

Incidence 1% to 5%

Body as a Whole: headache, back pain, infection, allergic reaction, chills.

Cardiovascular: chest pain, hypotension, tachycardia.

Cutaneous: herpes simplex, rash, itching.

Digestive: mouth ulceration, anorexia, dysphagia.

Metabolic and Nutritional: SGPT increase, weight loss, hyperbilirubinemia.

Other: dyspnea, pneumonia, dizziness, somnolence.

Incidence Less Than 1%

Body As A Whole: sepsis, moniliasis, cryptococcosis.

Cardiovascular: thrombophlebitis, cardiomyopathy, palpitation, bundle branch block, congestive heart failure, heart arrest, thrombosis, ventricular arrhythmia.

Digestive: hepatitis.

Metabolic and Nutritional Disorders: dehydration.

Respiratory: cough increase, pharyngitis.

Skin and Appendages: maculopapular rash, herpes zoster.

Special Senses: taste perversion, conjunctivitis.

Patients With Multiple Myeloma

The safety data described are from 318 patients treated with DOXIL (30 mg/m²) administered on day 4 following bortezomib (1.3 mg/m² i.v. bolus on days 1, 4, 8 and 11) every 3 weeks, in a randomized, open-label, multicenter study (Trial 6). In this trial, patients in the DOXIL + bortezomib combination group were treated for a median number of 4.5 months (range 21 days to 13.5 months). The population was 28 to 85 years of age (median age 61), 58% male, 90% Caucasian, 6% Black, and 4% Asian and Other. Table 7 lists adverse reactions reported in 10% or more of patients treated with DOXIL in combination with bortezomib for multiple myeloma.

Table 7: Frequency of Treatment-Emergent Adverse Reactions Reported in ≥ 10% Patients Treated for Multiple Myeloma With DOXIL in Combination With Bortezomib

Adverse Reaction DOXIL + bortezomib
(n=318)
Bortezomib
(n=318)
Any (%) Grade 3-4 Any (%) Grade 3-4
Blood and lymphatic system disorders
Neutropenia 36 32 22 16
Thrombocytopenia 33 24 28 17
Anemia 25 9 21 9
General disorders and administration site conditions
Fatigue 36 7 28 3
Pyrexia 31 1 22 1
Asthenia 22 6 18 4
Gastrointestinal disorders
Nausea 48 3 40 1
Diarrhea 46 7 39 5
Vomiting 32 4 22 1
Constipation 31 1 31 1
Mucositis/Stomatitis 20 2 5 < 1
Abdominal pain 11 1 8 1
Infections and infestations
Herpes zoster 11 2 9 2
Herpes simplex 10 0 6 1
Investigations Weight decreased 12 0 4 0
Metabolism and Nutritional disorders
Anorexia 19 2 14 < 1
Nervous system disorders
Peripheral Neuropathy* 42 7 45 11
Neuralgia 17 3 20 4
Paresthesia/dysesthesia 13 < 1 10 0
Respiratory, thoracic and mediastinal disorders
Cough 18 0 12 0
Skin and subcutaneous tissue disorders
Rash† 22 1 18 1
Hand-foot syndrome 19 6 < 1 0
*Peripheral neuropathy includes the following adverse reactions: peripheral sensory neuropathy, neuropathy peripheral, polyneuropathy, peripheral motor neuropathy, and neuropathy NOS.
†Rash includes the following adverse reactions: rash, rash erythematous, rash macular, rash maculo-papular, rash pruritic, exfoliative rash, and rash generalized.
Postmarketing Experience

The following additional adverse reactions have been identified during post approval use of DOXIL. 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.

Musculoskeletal and Connective Tissue Disorders: muscle spasms

Respiratory, Thoracic and Mediastinal Disorders: pulmonary embolism (in some cases fatal)

Hematologic disorders: Secondary acute myelogenous leukemia

Skin and subcutaneous tissue disorders: erythema multiforme, Stevens-Johnson syndrome, toxic epidermal necrolysis

Secondary oral neoplasms:.

Therapeutic indications

Ovarian Cancer

DOXIL is indicated for the treatment of patients with ovarian cancer whose disease has progressed or recurred after platinum-based chemotherapy.

AIDS-Related Kaposi's Sarcoma

DOXIL is indicated for the treatment of AIDS-related Kaposi's sarcoma in patients after failure of prior systemic chemotherapy or intolerance to such therapy.

Multiple Myeloma

DOXIL, in combination with bortezomib, is indicated for the treatment of patients with multiple myeloma who have not previously received bortezomib and have received at least one prior therapy.

Pharmacokinetic properties

The pharmacokinetic parameters for total doxorubicin following a single dose of DOXIL infused over 30 minutes are presented in Table 8.

Table 8: Pharmacokinetic Parameters of Total Doxorubicin from DOXIL in Patients With AIDS-Related Kaposi's Sarcoma

Parameter (units) Dose
10 mg/m² 20 mg/m²
Peak Plasma Concentration (μg/mL) 4.12 ± 0.215 8.34 ± 0.49
Plasma Clearance (L/h/m²) 0.056 ± 0.01 0.041 ± 0.004
Steady State Volume of Distribution (L/m²) 2.83 ± 0.145 2.72 ± 0.120
AUC (μg/mL•h) 277 ± 32.9 590 ± 58.7
First Phase (λ1) Half-Life (h) 4.7 ± 1.1 5.2 ± 1.4
Second Phase (λ1) Half-Life (h) 52.3 ± 5.6 55.0 ± 4.8
N=23
Mean ± Standard Error

DOXIL displayed linear pharmacokinetics over the range of 10 to 20 mg/m². Relative to DOXIL doses at or below 20 mg/m², the pharmacokinetics of total doxorubicin following a 50 mg/m² DOXIL dose are nonlinear. At this dose, the elimination half-life of DOXIL is longer and the clearance lower compared to a 20 mg/m² dose.

Distribution

Direct measurement of liposomal doxorubicin shows that at least 90% of the drug (the assay used cannot quantify less than 5-10% free doxorubicin) remains liposome-encapsulated during circulation.

In contrast to doxorubicin, which displays a large volume of distribution (range 700 to 1100 L/m²), the small steady state volume of distribution of liposomal doxorubicin suggests that DOXIL is largely confined to vascular fluid. Doxorubicin becomes available after the liposomes are extravasated. Plasma protein binding of DOXIL has not been determined; the plasma protein binding of doxorubicin is approximately 70%.

Metabolism

Doxorubicinol, the major metabolite of doxorubicin, was detected at concentrations of 0.8 to 26.2 ng/mL in the plasma of patients who received 10 or 20 mg/m² DOXIL.

Elimination

The plasma clearance of total doxorubicin from DOXIL was 0.041 L/h/m² at a dose of 20 mg/m². Following administration of doxorubicin HCl, the plasma clearance of doxorubicin is 24 to 35 L/h/m².

Name of the medicinal product

Doxil

Fertility, pregnancy and lactation

Risk Summary

Based on findings in animals, DOXIL can cause fetal harm when administered to a pregnant woman. In animal reproduction studies, DOXIL was embryotoxic in rats and abortifacient in rabbits following intravenous administration during organogenesis at doses approximately 0.12 times the recommended clinical dose. There are no available human data informing the drug-associated risk. Advise pregnant women of the potential risk to a fetus.

The background risk of major birth defects and miscarriage for the indicated populations are unknown. However, the background risk in the U.S. general population of major birth defects is 2-4% and of miscarriage is 15-20% of clinically recognized pregnancies.

Data

Animal Data

DOXIL was embryotoxic at doses of 1 mg/kg/day in rats and was embryotoxic and abortifacient at 0.5 mg/kg/day in rabbits (both doses are about 0.12 times the recommended dose of 50 mg/m² human dose on a mg/m² basis). Embryotoxicity was characterized by increased embryo-fetal deaths and reduced live litter sizes.

Qualitative and quantitative composition

Dosage Forms And Strengths

DOXIL: doxorubicin HCl liposomal injection: single use vials contain 20 mg/10 mL and 50 mg/25 mL doxorubicin HCl as a translucent, red liposomal dispersion.

Storage And Handling

DOXIL is a sterile, translucent, red liposomal dispersion in 10-mL or 30-mL glass, single use vials.

Each 10-mL vial contains 20 mg doxorubicin HCl at a concentration of 2 mg/mL.

Each 30-mL vial contains 50 mg doxorubicin HCl at a concentration of 2 mg/mL.

The following individually cartoned vials are available:

Table 14

mg in vial fill volume vial size NDC #s
20 mg vial 10-mL 10-mL 59676-960-01
50 mg vial 25-mL 30-mL 59676-960-02

Refrigerate unopened vials of DOXIL at 2°- 8°C (36°- 46°F). Do not freeze.

DOXIL is a cytotoxic drug. Follow applicable special handling and disposal procedures.

REFERENCES

1. “Hazardous Drugs”, OSHA, http://www.osha.gov/SLTC/hazardousdrugs/index.html

Manufactured by: TTY Biopharm Company Limited, Taoyuan City, 32069, Taiwan or GlaxoSmithKline Manufacturing S.p.A., Parma, Italy. Manufactured for: Janssen Products, LP, Horsham, PA 19044

Special warnings and precautions for use

WARNINGS

Included as part of the PRECAUTIONS section.

PRECAUTIONS Cardiomyopathy

Doxorubicin HCl can result in myocardial damage, including acute left ventricular failure. The risk of cardiomyopathy with doxorubicin HCl is generally proportional to the cumulative exposure. The relationship between cumulative DOXIL dose and the risk of cardiac toxicity has not been determined.

In a clinical study in 250 patients with advanced cancer who were treated with DOXIL, the risk of cardiotoxicity was 11% when the cumulative anthracycline dose was between 450-550 mg/m². Cardiotoxicity was defined as > 20% decrease in resting left ventricular ejection fraction (LVEF) from baseline where LVEF remained in the normal range or a > 10% decrease in LVEF from baseline where LVEF was less than the institutional lower limit of normal. Two percent of patients developed signs and symptoms of congestive heart failure without documented evidence of cardiotoxicity.

Assess left ventricular cardiac function (e.g. MUGA or echocardiogram) prior to initiation of DOXIL, during treatment to detect acute changes, and after treatment to detect delayed cardiotoxicity. Administer DOXIL to patients with a history of cardiovascular disease only when the potential benefit of treatment outweighs the risk.

Infusion-Related Reactions

Serious and sometimes life-threatening infusion-related reactions characterized by one or more of the following symptoms can occur with DOXIL: flushing, shortness of breath, facial swelling, headache, chills, chest pain, back pain, tightness in the chest and throat, fever, tachycardia, pruritus, rash, cyanosis, syncope, bronchospasm, asthma, apnea, and hypotension. The majority of infusion-related events occurred during the first infusion. Of 239 patients with ovarian cancer treated with DOXIL in Trial 4, 7% of patients experienced acute infusion-related reactions resulting in dose interruption. All occurred during cycle 1 and none during subsequent cycles. Across multiple studies of DOXIL monotherapy including this and other studies enrolling 760 patients with various solid tumors, 11% of patients had infusion-related reactions.

Ensure that medications to treat infusion-related reactions and cardiopulmonary resuscitative equipment are available for immediate use prior to initiation of DOXIL. Initiate DOXIL infusions at a rate of 1 mg/min and increase rate as tolerated. In the event of an infusionrelated reaction, temporarily stop the drug until resolution then resume at a reduced infusion rate. Discontinue DOXIL infusion for serious or life-threatening infusion-related reactions.

Hand-Foot Syndrome (HFS)

In Trial 4, the incidence of HFS was 51% of patients in the DOXIL arm and 0.9% of patients in the topotecan arm, including 24% Grade 3 or 4 cases of HFS in DOXIL-treated patients and no Grade 3 or 4 cases in topotecan-treated patients. HFS or other skin toxicity required discontinuation of DOXIL in 4.2% of patients.

HFS was generally observed after 2 or 3 cycles of treatment but may occur earlier. Delay DOXIL for the first episode of Grade 2 or greater HFS. Discontinue DOXIL if HFS is severe and debilitating.

Secondary Oral Neoplasms

Secondary oral cancers, primarily squamous cell carcinoma, have been reported from post-marketing experience in patients with long-term (more than one year) exposure to DOXIL. These malignancies were diagnosed both during treatment with DOXIL and up to 6 years after the last dose. Examine patients at regular intervals for the presence of oral ulceration or with any oral discomfort that may be indicative of secondary oral cancer.

The altered pharmacokinetics and preferential tissue distribution of liposomal doxorubicin that contributes to enhanced skin toxicity and mucositis compared to free doxorubicin may play a role in the development of oral secondary malignancies with long-term use.

Embryofetal Toxicity

Based on animal data, DOXIL can cause fetal harm when administered to a pregnant woman. At doses approximately 0.12 times the recommended clinical dose, DOXIL was embryotoxic and abortifacient in rabbits. Advise pregnant women of the potential risk to a fetus. Advise females and males of reproductive potential to use effective contraception during and for 6 months after treatment with DOXIL.

Nonclinical Toxicology Carcinogenesis, Mutagenesis, And Impairment Of Fertility

Mutagenicity or carcinogenicity studies have not been conducted with DOXIL, however doxorubicin was shown to be mutagenic in the in vitro Ames assay, and clastogenic in multiple in vitro assays (CHO cell, V79 hamster cell, human lymphoblast, and SCE assays) and the in vivo mouse micronucleus assay. The possible adverse effects on fertility in animals have not been adequately evaluated. DOXIL resulted in mild to moderate ovarian and testicular atrophy in mice after administration of a single dose of 36 mg/kg (about 2 times the 50 mg/m² human dose on a mg/m² basis). Decreased testicular weights and hypospermia were observed in rats after repeat doses ≥ 0.25 mg/kg/day (about 0.03 times the 50 mg/m² human dose on a mg/m² basis), and diffuse degeneration of the seminiferous tubules and a marked decrease in spermatogenesis were observed in dogs after repeat doses of 1 mg/kg/day (about 0.4 times the 50 mg/m² human dose on a mg/m basis).

Use In Specific Populations Pregnancy Risk Summary

Based on findings in animals, DOXIL can cause fetal harm when administered to a pregnant woman. In animal reproduction studies, DOXIL was embryotoxic in rats and abortifacient in rabbits following intravenous administration during organogenesis at doses approximately 0.12 times the recommended clinical dose. There are no available human data informing the drug-associated risk. Advise pregnant women of the potential risk to a fetus.

The background risk of major birth defects and miscarriage for the indicated populations are unknown. However, the background risk in the U.S. general population of major birth defects is 2-4% and of miscarriage is 15-20% of clinically recognized pregnancies.

Data

Animal Data

DOXIL was embryotoxic at doses of 1 mg/kg/day in rats and was embryotoxic and abortifacient at 0.5 mg/kg/day in rabbits (both doses are about 0.12 times the recommended dose of 50 mg/m² human dose on a mg/m² basis). Embryotoxicity was characterized by increased embryo-fetal deaths and reduced live litter sizes.

Lactation Risk Summary

It is not known whether DOXIL is present in human milk. Because many drugs, including anthracyclines, are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from DOXIL, discontinue breastfeeding during treatment with DOXIL.

Females And Males Of Reproductive Potential Contraception

Females

DOXIL can cause fetal harm when administered to a pregnant woman. Advise females of reproductive potential to use effective contraception during and for 6 months after treatment with DOXIL.

Males

DOXIL may damage spermatozoa and testicular tissue, resulting in possible genetic fetal abnormalities. Males with female sexual partners of reproductive potential should use effective contraception during and for 6 months after treatment with DOXIL.

Infertility

Females

In females of reproductive potential, DOXIL may cause infertility and result in amenorrhea. Premature menopause can occur with doxorubicin HCl. Recovery of menses and ovulation is related to age at treatment.

Males

DOXIL may result in oligospermia, azoospermia, and permanent loss of fertility. Sperm counts have been reported to return to normal levels in some men. This may occur several years after the end of therapy .

Pediatric Use

The safety and effectiveness of DOXIL in pediatric patients have not been established.

Geriatric Use

Clinical studies of DOXIL conducted in patients with either epithelial ovarian cancer (Trial 4) or with AIDS-related Kaposi's sarcoma (Trial 5) did not contain sufficient numbers of patients aged 65 and over to determine whether they respond differently from younger subjects.

In Trial 6, of 318 patients treated with DOXIL in combination with bortezomib for multiple myeloma, 37% were 65 years of age or older and 8% were 75 years of age or older. No overall differences in safety or efficacy were observed between these patients and younger patients.

Hepatic Impairment

The pharmacokinetics of DOXIL has not been adequately evaluated in patients with hepatic impairment. Doxorubicin is eliminated in large part by the liver. Reduce DOXIL for serum bilirubin of 1.2 mg/dL or higher.

Dosage (Posology) and method of administration

Important Use Information

Do not substitute DOXIL for doxorubicin HCl injection.

Do not administer as an undiluted suspension or as an intravenous bolus.

Ovarian Cancer

The recommended dose of DOXIL is 50 mg/m² intravenously over 60 minutes every 28 days until disease progression or unacceptable toxicity.

AIDS-Related Kaposi's Sarcoma

The recommended dose of DOXIL is 20 mg/m² intravenously over 60 minutes every 21 days until disease progression or unacceptable toxicity.

Multiple Myeloma

The recommended dose of DOXIL is 30 mg/m² intravenously over 60 minutes on day 4 of each 21-day cycle for eight cycles or until disease progression or unacceptable toxicity. Administer DOXIL after bortezomib on day 4 of each cycle.

Dose Modifications For Adverse Reactions

Do not increase DOXIL after a dose reduction for toxicity.

Table 1: Recommended Dose Modifications for Hand-Foot Syndrome, Stomatitis, or Hematologic Adverse Reactions

Toxicity Dose Adjustment
Hand-Foot Syndrome (HFS)
Grade 1: Mild erythema, swelling, or des quamati on not interfering with daily activities
  • If no previous Grade 3 or 4 HFS: no dose adjustment.
  • If previous Grade 3 or 4 HFS: delay dose up to 2 weeks, then decrease dose by 25%.
Grade 2: Erythema, desquamation, or swelling interfering with, but not precluding normal physical activities; small blisters or ulcerations less than 2 cm in diameter
  • Delay dosing up to 2 weeks or until resolved to Grade 0-1.
  • Discontinue DOXIL if no resolution after 2 weeks.
  • If resolved to Grade 0-1 within 2 weeks:
    • And no previous Grade 3 or 4 HFS: continue treatment at previous dose.
    • And previous Grade 3 or 4 toxicity: decrease dose by 25%.
Grade 3: Blistering, ulceration, or swelling interfering with walking or normal daily activities; cannot wear regular clothing
  • Delay dosing up to 2 weeks or until resolved to Grade 0-1, then decrease dose by 25%.
  • Discontinue DOXIL if no resolution after 2 weeks.
Grade 4: Diffuse or local process causing infectious complications, or a bed ridden state or hospitalization
  • Delay dosing up to 2 weeks or until resolved to Grade 0-1, then decrease dose by 25%.
  • Discontinue DOXIL if no resolution after 2 weeks.
Stomatitis
Grade 1: Painless ulcers, erythema, or mild soreness
  • If no previous Grade 3 or 4 toxicity: no dose adjustment.
  • If previous Grade 3 or 4 toxicity: delay up to 2 weeks then decrease dose by 25%.
Grade 2: Painful erythema, edema, or
  • Delay dosing up to 2 weeks or until resolved to Grade 0-1.
  • Discontinue DOXIL if there is no resolution after 2 weeks.
  • If resolved to Grade 0-1 within 2 weeks:
    • And no previous Grade 3 or 4 stomatitis: resume treatment at previous dose.
    • And previous Grade 3 or 4 toxicity: decrease dose by 25%.
Grade 3: Painful erythema, edema, or ulcers, and cannot eat
  • Delay dosing up to 2 weeks or until resolved to Grade 0-1. Decrease dose by 25% and return to original dose interval.
  • If after 2 weeks there is no resolution, discontinue DOXIL.
Grade 4: Requires parenteral or enteral support
  • Delay dosing up to 2 weeks or until resolved to Grade 0-1. Decrease dose by 25% and return to original dose interval.
  • If after 2 weeks there is no resolution, discontinue DOXIL.
Neutropenia or Thrombocytopenia
Grade 1 No dose reduction
Grade 2 Delay until ANC ≥ 1,500 and platelets ≥ 75,000; resume treatment at previous dose
Grade 3 Delay until ANC ≥ 1,500 and platelets ≥ 75,000; resume treatment at previous dose
Grade 4 Delay until ANC ≥ 1,500 and platelets ≥ 75,000; resume at 25% dose reduction or continue previous dose with prophylactic granulocyte growth factor

Table 2: Recommended Dose Modifications of DOXIL for Toxicity When Administered in Combination With Bortezomib

Toxicity DOXIL
Fever ≥ 38°C and ANC < 1,000/mm³
  • Withhold dose for this cycle if before Day 4;
  • Decrease dose by 25%, if after Day 4 of previous cycle.

On any day of drug administration after Day 1 of each cycle:

  • Platelet count < 25,000/mm³
  • Hemoglobin < 8 g/dL
  • ANC < 500/mm³
  • Withhold dose for this cycle if before Day 4;
  • Decrease dose by 25%, if after Day 4 of previous cycle AND if bortezomib is reduced for hematologic toxicity.
Grade 3 or 4 non-hematologic drug related toxicity Do not dose until recovered to Grade < 2, then reduce dose by 25%.

For neuropathic pain or peripheral neuropathy, no dosage adjustments are required for DOXIL. Refer to bortezomib manufacturer's prescribing information.

Preparation And Administration Preparation

Dilute DOXIL doses up to 90 mg in 250 mL of 5% Dextrose Injection, USP prior to administration. Dilute doses exceeding 90 mg in 500 mL of 5% Dextrose Injection, USP prior to administration. Refrigerate diluted DOXIL at 2°C to 8°C (36°F to 46°F) and administer within 24 hours.

Administration

Inspect parenteral drug products visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Do not use if a precipitate or foreign matter is present.

Do not use with in-line filters.

Administer the first dose of DOXIL at an initial rate of 1 mg/min. If no infusion-related adverse reactions are observed, increase the infusion rate to complete the administration of the drug over one hour. Do not rapidly flush the infusion line.

Do not mix DOXIL with other drugs.

Management of Suspected Extravasation

Discontinue DOXIL for burning or stinging sensation or other evidence indicating perivenous infiltration or extravasation. Manage confirmed or suspected extravasation as follows:

  • Do not remove the needle until attempts are made to aspirate extravasated fluid
  • Do not flush the line
  • Avoid applying pressure to the site
  • Apply ice to the site intermittently for 15 min 4 times a day for 3 days
  • If the extravasation is in an extremity, elevate the extremity
Procedure For Proper Handling And Disposal

DOXIL is a cytotoxic drug. Follow applicable special handling and disposal procedures.1 If DOXIL comes into contact with skin or mucosa, immediately wash thoroughly with soap and water.

Interaction with other medicinal products and other forms of interaction

SIDE EFFECTS

The following adverse reactions are discussed in more detail in other sections of the labeling.

  • Cardiomyopathy
  • Infusion-Related Reactions
  • Hand-Foot Syndrome
  • Secondary Oral Neoplasms

The most common adverse reactions ( > 20%) observed with DOXIL are asthenia, fatigue, fever, nausea, stomatitis, vomiting, diarrhea, constipation, anorexia, hand-foot syndrome, rash and neutropenia, thrombocytopenia and anemia.

Adverse Reactions In Clinical Trials

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

The safety data reflect exposure to DOXIL in 1310 patients including: 239 patients with ovarian cancer, 753 patients with AIDS-related Kaposi's sarcoma, and 318 patients with multiple myeloma.

The following tables present adverse reactions from clinical trials of single-agent DOXIL in ovarian cancer and AIDS-Related Kaposi's sarcoma.

Patients With Ovarian Cancer

The safety data described below are from Trial 4, which included 239 patients with ovarian cancer treated with DOXIL 50 mg/m once every 4 weeks for a minimum of four courses in a randomized, multicenter, open-label study. In this trial, patients received DOXIL for a median number of 3.2 months (range 1 day to 25.8 months). The median age of the patients is 60 years (range 27 to 87), with 91% Caucasian, 6% Black, and 3% Hispanic or Other.

Table 3 presents the hematologic adverse reactions from Trial 4.

Table 3: Hematologic Adverse Reactions in Trial 4

  DOXIL Patients
(n=239)
Topotecan Patients
(n=235)
Neutropenia
  500 - < 1000/mm³ 8% 14%
   < 500/mm³ 4.2% 62%
Anemia
  6.5 - < 8 g/dL 5% 25%
   < 6.5 g/dL 0.4% 4.3%
Thrombocytopenia
  10,000 - < 50,000/mm³ 1.3% 17%
   < 10,000/mm³ 0.0% 17%

Table 4 presents the non-hematologic adverse reactions from Trial 4.

Table 4: Non-Hematologic Adverse Reactions in Trial 4

Non-Hematologic Adverse
Reaction 10% or Greater
DOXIL (%) treated
(n=239)
Topotecan (%) treated
(n=235)
All grades Grades 3-4 All grades Grades 3-4 All grades
Body as a Whole
  Asthenia 40 7 52 8
  Fever 21 0.8 31 6
  Mucous Membrane Disorder 14 3.8 3.4 0
  Back Pain 12 1.7 10 0.9
  Infection 12 2.1 6 0.9
  Headache 11 0.8 15 0
Digestive
  Nausea  46 5 63 8
  Stomatitis 41 8 15 0.4
  Vomiting 33 8 44 10
  Diarrhea 21 2.5 35 4.2
  Anorexia 20 2.5 22 1.3
  Dyspepsia 12 0.8 14 0
Nervous
  Dizziness 4.2 0 10 0
Respiratory
  Pharyngitis 16 0 18 0.4
  Dyspnea 15 4.1 23 4.3
  Cough increased 10 0 12 0
Skin and Appendages
  Hand-foot syndrome 51 24 0.9 0
  Rash 29 4.2 12 0.4
  Alopecia 19 N/A 52 N/A

The following additional adverse reactions were observed in patients with ovarian cancer with doses administered every four weeks (Trial 4).

Incidence 1% to 10%

Cardiovascular: vasodilation, tachycardia, deep vein thrombosis, hypotension, cardiac arrest.

Digestive: oral moniliasis, mouth ulceration, esophagitis, dysphagia, rectal bleeding, ileus.

Hematologic and Lymphatic: ecchymosis.

Metabolic and Nutritional: dehydration, weight loss, hyperbilirubinemia, hypokalemia, hypercalcemia, hyponatremia.

Nervous: somnolence, dizziness, depression.

Respiratory: rhinitis, pneumonia, sinusitis, epistaxis.

Skin and Appendages: pruritus, skin discoloration, vesiculobullous rash, maculopapular rash, exfoliative dermatitis, herpes zoster, dry skin, herpes simplex, fungal dermatitis, furunculosis, acne.

Special Senses: conjunctivitis, taste perversion, dry eyes.

Urinary: urinary tract infection, hematuria, vaginal moniliasis.

Patients With AIDS-Related Kaposi's Sarcoma

The safety data described is based on the experience reported in 753 patients with AIDS-related Kaposi's sarcoma (KS) enrolled in four open-label, uncontrolled trials of DOXIL administered at doses ranging from 10 to 40 mg/m² every 2 to 3 weeks. Demographics of the population were: median age 38.7 years (range 24-70); 99% male; 88% Caucasian, 6% Hispanic, 4% Black, and 2% Asian/other/unknown. The majority of patients were treated with 20 mg/m² of DOXIL every 2 to 3 weeks with a median exposure of 4.2 months (range 1 day to 26.6 months). The median cumulative dose was 120 mg/m² (range 3.3 to 798.6 mg/m²); 3% received cumulative doses of greater than 450 mg/m².

Disease characteristics were: 61% poor risk for KS tumor burden, 91% poor risk for immune system, and 47% poor risk for systemic illness; 36% were poor risk for all three categories; median CD4 count 21 cells/mm (51% less than 50 cells/mm³); mean absolute neutrophil count at study entry approximately 3,000 cells/mm³.

Of the 693 patients with concomitant medication information, 59% were on one or more antiretroviral medications [35% zidovudine (AZT), 21% didanosine (ddI), 16% zalcitabine (ddC), and 10% stavudine (D4T)]; 85% received PCP prophylaxis (54% sulfamethoxazole/trimethoprim); 85% received antifungal medications (76% fluconazole); 72% received antivirals (56% acyclovir, 29% ganciclovir, and 16% foscarnet) and 48% patients received colony-stimulating factors (sargramostim/filgrastim) during their course of treatment.

Adverse reactions led to discontinuation of treatment in 5% of patients with AIDS-related Kaposi's sarcoma and included myelosuppression, cardiac adverse reactions, infusion-related reactions, toxoplasmosis, HFS, pneumonia, cough/dyspnea, fatigue, optic neuritis, progression of a non-KS tumor, allergy to penicillin, and unspecified reasons. Tables 5 and 6 summarize adverse reactions reported in patients treated with DOXIL for AIDS-related Kaposi's sarcoma in a pooled analysis of the four trials.

Table 5: Hematologic Adverse Reactions Reported in Patients With AIDS-Related Kaposi's Sarcoma

  Patients With Refractory or Intolerant AIDS-Related Kaposi's Sarcoma
(n=74*)
Total Patients With AIDS-Related Kaposi's Sarcoma
(n=720†)
Neutropenia
   < 1000/mm³ 46% 49%
   < 500/mm³ 11% 13%
Anemia
   < 10 g/dL 58% 55%
   < 8 g/dL 16% 18%
Thrombocytopenia
   < 150,000/mm³ 61% 61%
   < 25,000/mm³ 1.4% 4.2%
*This includes a subset of subjects who were retrospectively identified as having disease progression on prior systemic combination chemotherapy (at least 2 cycles of a regimen containing at least 2 of 3 treatments: bleomycin, vincristine or vinblastine, or doxorubicin) or as being intolerant to such therapy.
†This includes only subjects with AIDS-KS who had available data from the 4 pooled trials.

Table 6: Non-Hematologic Adverse Reactions Reported in ≥ 5% of Patients With AIDS-Related Kaposi's Sarcoma

Adverse Reactions Patients With Refractory or Intolerant AIDS-Related Kaposi's Sarcoma
(n=77*)
T otal Patients With AIDS-Related Kaposi's Sarcoma
(n=705†)
Nausea 18% 17%
Asthenia 7% 10%
Fever 8% 9%
Alopecia 9% 9%
Alkaline Phosphatase Increase 1.3% 8%
Vomiting 8% 8%
Diarrhea 5% 8%
Stomatitis 5% 7%
Oral Moniliasis 1.3% 6%
*This includes a subset of subjects who were retrospectively identified as having disease progression on prior systemic combination chemotherapy (at least 2 cycles of a regimen containing at least 2 of 3 treatments: bleomycin, vincristine or vinblastine, or doxorubicin) or as being intolerant to such therapy.
†This includes only subjects with AIDS-KS who had available adverse event data from the 4 pooled trials.

The following additional adverse reactions were observed in 705 patients with AIDS-related Kaposi's sarcoma.

Incidence 1% to 5%

Body as a Whole: headache, back pain, infection, allergic reaction, chills.

Cardiovascular: chest pain, hypotension, tachycardia.

Cutaneous: herpes simplex, rash, itching.

Digestive: mouth ulceration, anorexia, dysphagia.

Metabolic and Nutritional: SGPT increase, weight loss, hyperbilirubinemia.

Other: dyspnea, pneumonia, dizziness, somnolence.

Incidence Less Than 1%

Body As A Whole: sepsis, moniliasis, cryptococcosis.

Cardiovascular: thrombophlebitis, cardiomyopathy, palpitation, bundle branch block, congestive heart failure, heart arrest, thrombosis, ventricular arrhythmia.

Digestive: hepatitis.

Metabolic and Nutritional Disorders: dehydration.

Respiratory: cough increase, pharyngitis.

Skin and Appendages: maculopapular rash, herpes zoster.

Special Senses: taste perversion, conjunctivitis.

Patients With Multiple Myeloma

The safety data described are from 318 patients treated with DOXIL (30 mg/m²) administered on day 4 following bortezomib (1.3 mg/m² i.v. bolus on days 1, 4, 8 and 11) every 3 weeks, in a randomized, open-label, multicenter study (Trial 6). In this trial, patients in the DOXIL + bortezomib combination group were treated for a median number of 4.5 months (range 21 days to 13.5 months). The population was 28 to 85 years of age (median age 61), 58% male, 90% Caucasian, 6% Black, and 4% Asian and Other. Table 7 lists adverse reactions reported in 10% or more of patients treated with DOXIL in combination with bortezomib for multiple myeloma.

Table 7: Frequency of Treatment-Emergent Adverse Reactions Reported in ≥ 10% Patients Treated for Multiple Myeloma With DOXIL in Combination With Bortezomib

Adverse Reaction DOXIL + bortezomib
(n=318)
Bortezomib
(n=318)
Any (%) Grade 3-4 Any (%) Grade 3-4
Blood and lymphatic system disorders
Neutropenia 36 32 22 16
Thrombocytopenia 33 24 28 17
Anemia 25 9 21 9
General disorders and administration site conditions
Fatigue 36 7 28 3
Pyrexia 31 1 22 1
Asthenia 22 6 18 4
Gastrointestinal disorders
Nausea 48 3 40 1
Diarrhea 46 7 39 5
Vomiting 32 4 22 1
Constipation 31 1 31 1
Mucositis/Stomatitis 20 2 5 < 1
Abdominal pain 11 1 8 1
Infections and infestations
Herpes zoster 11 2 9 2
Herpes simplex 10 0 6 1
Investigations Weight decreased 12 0 4 0
Metabolism and Nutritional disorders
Anorexia 19 2 14 < 1
Nervous system disorders
Peripheral Neuropathy* 42 7 45 11
Neuralgia 17 3 20 4
Paresthesia/dysesthesia 13 < 1 10 0
Respiratory, thoracic and mediastinal disorders
Cough 18 0 12 0
Skin and subcutaneous tissue disorders
Rash† 22 1 18 1
Hand-foot syndrome 19 6 < 1 0
*Peripheral neuropathy includes the following adverse reactions: peripheral sensory neuropathy, neuropathy peripheral, polyneuropathy, peripheral motor neuropathy, and neuropathy NOS.
†Rash includes the following adverse reactions: rash, rash erythematous, rash macular, rash maculo-papular, rash pruritic, exfoliative rash, and rash generalized.
Postmarketing Experience

The following additional adverse reactions have been identified during post approval use of DOXIL. 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.

Musculoskeletal and Connective Tissue Disorders: muscle spasms

Respiratory, Thoracic and Mediastinal Disorders: pulmonary embolism (in some cases fatal)

Hematologic disorders: Secondary acute myelogenous leukemia

Skin and subcutaneous tissue disorders: erythema multiforme, Stevens-Johnson syndrome, toxic epidermal necrolysis

Secondary oral neoplasms:.

DRUG INTERACTIONS

No formal drug interaction studies have been conducted with DOXIL.