Abacavir 300 mg Tablet, Film Coated, 60-count — NDC 69097-514-03 (Billing 69097-0514-03)
This is a package of 60 tablets of Abacavir 300 mg Tablet, Film Coated from Cipla USA Inc., marketed since Nov 2017 and currently FDA-listed; retail pharmacies pay about $0.5456 per tablet (NADAC). It is this product's only package size.
NDC database record
One package, one record: these facts belong to NDC 69097-514-03 alone.
- Record
- FDA NDC Directory package listing · Human prescription drug
- Code segments
- 69097 labeler · 514 product · 03 package
- Package marketed since
- Nov 21, 2017
- Sample package
- No — commercial package
- Listing certified through
- Dec 31, 2026
- Billing quantity
- 60 EA per package
- Barcode (UPC-A, from the NDC)
- 3 6909751403 7
- Medicaid fills, this package
- 348 prescriptions in the last four reported quarters
- FDA record last changed
- Jul 24, 2026
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification
- GSN (GCN sequence number): 040964
- GCN: 94668
- GPI-14 (Medi-Span): 12105005100320
- HICL (First Databank): 018857
- AHFS class code: 08:18.08.20
- RxCUI (RxNorm): 242679
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 5, 2026
- RxNorm (NLM RxNav) · catalog refreshed Oct 1, 2026
- Medi-Span GPI (licensed)
- First Databank (licensed) · refreshed Oct 1, 2026
RxNorm drug class
This medicine belongs to the Human Immunodeficiency Virus Nucleoside Analog Reverse Transcriptase Inhibitor class.
Where does this data come from?
- RxClass (NLM) · catalog refreshed Oct 1, 2026
Clinical
- Abacavir treats HIV-1 infection. It is always taken together with other HIV medicines, never alone. Combination treatment is how it helps control the virus.
- The HLA-B*5701 gene test shows whether you have a higher risk of a serious allergic reaction to abacavir. If you carry the gene, you should not take it. Even without the gene, reac...
- Stop abacavir right away and contact your doctor or get emergency care. Watch for two or more of these: fever, rash, nausea, vomiting, diarrhea, belly pain, feeling very tired or a...
- What should I do if I think I'm having an allergic reaction?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Abacavir — tap one for details:
Where does this data come from?
- MedlinePlus (NLM) · refreshed Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 5, 2026
Ask a licensed pharmacist directly — free, answered by our team.
Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per ea | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $0.546 | $32.74 / 60 tablets |
| Medicaid paysCMS SDUD · 12 mo | $1.28 | $76.72 / 60 tablets |
| Medicare drug plans payPart D · Q2 2026 | $1.51 | $90.79 / 60 tablets |
Where does this data come from?
- CMS NADAC weekly file · file of Sep 30, 2026
- CMS ASP pricing files · refreshed Sep 20, 2026
- CMS Medicaid State Drug Utilization Data · through Q1 2026
- CMS Part D plan pricing files · refreshed Sep 24, 2026
- VA National Acquisition Center price file
Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Marketing end | Status |
|---|---|---|---|---|
| 69097-0514-03 You're viewing this Main listing | 60 TABLET, FILM COATED in 1 BOTTLE | 2017-11-21 | — | Active |
Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Abacavir Sulfate 300 mg 00378-4105-91 | Mylan | 60 tablets | $0.546 | AB | Availability likely | — |
| Abacavir 300 mg 00904-6874-04 | Major | 1 tablet | $0.546 | AB | Availability likely | — |
| Abacavir 300 mg 31722-0557-60 | Camber | 60 tablets | $0.546 | AB | Availability likely | — |
| Abacavir 300 mg 50268-0049-12 | AvPAK | 20 tablets | $0.546 | AB | Availability likely | — |
| Abacavir Sulfate 300 mg 51079-0204-06 | Mylan | 1 tablet | $0.546 | AB | Availability likely | — |
| Abacavir 300 mg 65862-0073-60 | Aurobindo | 60 tablets | $0.546 | — | Availability likely | — |
| Abacavir 300 mg 68084-0021-21 | American | 1 tablet | $0.546 | AB | Availability likely | — |
| Abacavir 300 mgthis 69097-0514-03 | Cipla | 60 tablets | $0.546 | AB | Availability likely | — |
| Abacavir Sulfate 300 mg 48433-0001-06 | Safecor | 1 tablet | — | AB | FDA listed | — |
| Abacavir 300 mg 67046-1602-03 | Coupler | 30 tablets | — | AB | FDA listed | — |
| Abacavir 300 mg 72865-0167-60 | XLCare | 60 tablets | — | AB | FDA listed | — |
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA Orange Book · refreshed Oct 3, 2026
- CMS NADAC weekly file · file of Sep 30, 2026
Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
- FDA Orange Book · refreshed Oct 3, 2026
Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
🧪 Avoiding an ingredient? See Abacavir inactive ingredients by manufacturer: every current product's list side by side, so you can ask your pharmacy for the version that does not list it.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII OP1R32D61U
Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
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UNII EX438O2MRT
Ferric oxide yellow is a naturally occurring iron compound used as a colorant in medications. It gives tablets, capsules, and other forms a yellow or golden hue for identification and appearance.
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UNII 0VUT3PMY82
Hypromellose 2910 is a plant-derived thickening agent made from cellulose. In medicines, it forms protective coatings on tablets or capsules, controls how fast the drug releases, and thickens liquid formulations.
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UNII 70097M6I30
Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
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UNII B697894SGQ
Polyethylene glycol 400 is a clear, thick liquid made from petroleum-derived polymers. It acts as a solvent and humectant in medicines, helping dissolve active ingredients and retain moisture in the formulation.
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UNII 6OZP39ZG8H
Polysorbate 80 is a synthetic emulsifier derived from sorbitol and oleic acid. It helps mix oil and water-based ingredients together in medications and improves how the product disperses in the body.
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UNII ETJ7Z6XBU4
Silicon dioxide is a naturally occurring mineral used as a glidant and anti-caking agent. It helps powder ingredients flow smoothly and prevents clumping during manufacturing and storage.
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UNII AG9B65PV6B
A starch derivative made from corn that helps tablets and capsules break apart quickly when swallowed. It acts as a disintegrant, allowing the medicine to dissolve and be absorbed in your stomach and intestines.
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UNII O8232NY3SJ
A plant-based carbohydrate derived from corn kernels. It acts as a filler to add bulk, a binder to hold ingredients together, and a disintegrant to help the tablet break apart in your stomach for absorption.
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UNII 15FIX9V2JP
Titanium dioxide is a bright white mineral powder commonly used as a colorant and opacifying agent. It makes pills and tablets white or lighter in color and helps make coatings non-transparent.
10 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.- FDA label on DailyMed · label index refreshed Oct 5, 2026
- FDA openFDA NDC Directory · synced Oct 1, 2026
Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
Manufacturer & labeler
More NDCs from Cipla USA Inc. labeler code 69097
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- Esomeprazole magnesium 2.5 mg For Suspension NDC 69097-507-31
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- Cyclophosphamide 25 mg Capsule NDC 69097-516-07
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- ISOPROTERENOL .2 mg/mL Injection, Solution NDC 69097-521-31
- ISOPROTERENOL 1 mg/5mL Injection, Solution NDC 69097-522-35
- Tadalafil 20 mg Tablet, Film Coated NDC 69097-526-03
- Esomeprazole Magnesium 10 mg Granule, For Suspension, Extended Release NDC 69097-527-34
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- Drugs@FDA
Full prescribing information FDA SPL
🚨 Boxed Warning ▾
WARNING HYPERSENSITIVITY REACTIONS WARNING: HYPERSENSITIVITY REACTIONS See full prescribing information for complete boxed warning. Serious and sometimes fatal hypersensitivity reactions have occurred with abacavir sulfate. ( 5.1 ) Hypersensitivity to abacavir is a multi-organ clinical syndrome.
( 5.1 ) Patients who carry the HLA-B*5701 allele are at higher risk of experiencing a hypersensitivity reaction to abacavir. ( 5.1 ) Abacavir tablet is contraindicated in patients with a prior hypersensitivity reaction to abacavir and in HLA-B*5701-positive patients. ( 4 ) Discontinue abacavir tablets as soon as a hypersensitivity reaction is suspected.
Regardless of HLA-B*5701 status, permanently discontinue abacavir tablets if hypersensitivity cannot be ruled out, even when other diagnoses are possible. ( 5.1 ) Following a hypersensitivity reaction to abacavir, NEVER restart abacavir tablets or any other abacavir-containing product. ( 5.1 ) Serious and sometimes fatal hypersensitivity reactions, with multiple organ involvement, have occurred with abacavir sulfate.
Patients who carry the HLA-B*5701 allele are at a higher risk of a hypersensitivity reaction to abacavir; although, hypersensitivity reactions have occurred in patients who do not carry the HLA-B*5701 allele [see Warnings and Precautions ( 5.1 )] . Abacavir is contraindicated in patients with a prior hypersensitivity reaction to abacavir and in HLA-B*5701-positive patients [see Contraindications ( 4 ), Warnings and Precautions ( 5.1 )] . All patients should be screened for the HLA-B*5701 allele prior to initiating therapy with abacavir or reinitiation of therapy with abacavir, unless patients have a previously documented HLA-B*5701 allele assessment.
Discontinue abacavir tablets immediately if a hypersensitivity reaction is suspected, regardless of HLA-B*5701 status and even when other diagnoses are possible [see Contraindications ( 4 ), Warnings and Precautions ( 5.1 )]. Following a hypersensitivity reaction to abacavir, NEVER restart abacavir tablets or any other abacavir-containing product because more severe symptoms, including death can occur within hours. Similar severe reactions have also occurred rarely following the reintroduction of abacavir-containing products in patients who have no history of abacavir hypersensitivity [see Warnings and Precautions ( 5.1 )] .
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Abacavir tablet, a nucleoside analogue human immunodeficiency virus (HIV-1) reverse transcriptase inhibitor, is indicated in combination with other antiretroviral agents for the treatment of HIV-1 infection. Abacavir tablets USP 300 mg, in combination with other antiretroviral agents, are indicated for the treatment of human immunodeficiency virus (HIV-1) infection.
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Before initiating abacavir tablets, screen for the HLA-B*5701 allele. ( 2.1 ) Adults: 600 mg daily, administered as either 300 mg twice daily or 600 mg once daily. ( 2.2 ) Pediatric Patients Aged 3 Months and Older: Administered either once or twice daily.
Dose should be calculated on body weight (kg) and should not exceed 600 mg daily. ( 2.3 ) Patients with Hepatic Impairment: Mild hepatic impairment – 200 mg twice daily. ( 2.4 )
2.1Screening for HLA-B*5701 Allele prior to Starting Abacavir tablets Screen for the HLA-B*5701 allele prior to initiating therapy with abacavir tablets [see Boxed Warning, Warnings and Precautions ( 5.1 )] .
2.2Recommended Dosage for Adults Patients The recommended dosage of abacavir sulfate for adults is 600 mg daily, administered orally as either 300 mg twice daily or 600 mg once daily, in combination with other antiretroviral agents.
2.3Recommended Dosage for Pediatric Patients The recommended dosage of abacavir sulfate in HIV-1-infected pediatric patients aged 3 months and older is 8 mg per kg orally twice daily or 16 mg per kg orally once-daily (up to a maximum of 600 mg daily) in combination with other antiretroviral agents. Abacavir tablet is also available as a scored tablet for HIV-1-infected pediatric patients weighing greater than or equal to 14 kg for whom a solid dosage form is appropriate. Before prescribing abacavir tablets, children should be assessed for the ability to swallow tablets.
If a child is unable to reliably swallow abacavir tablets, the oral solution formulation should be prescribed. The recommended oral dosage of abacavir tablets for HIV-1-infected pediatric patients is presented in Table 1. Table 1.
Dosing Recommendations for Abacavir Scored Tablets in Pediatric Patients Weight (kg) Once-Daily Dosing Regimen Data regarding the efficacy of once-daily dosing is limited to subjects who transitioned from twice-daily dosing to once-daily dosing after 36 weeks of treatment [see Clinical Studies (14.2)] . Twice-Daily Dosing Regimen AM Dose PM Dose Total Daily Dose 14 to <20 1 tablet (300 mg) ½ tablet (150 mg) ½ tablet (150 mg) 300 mg ≥20 to <25 1½ tablets (450 mg) ½ tablet (150 mg) 1 tablet (300 mg) 450 mg ≥25 2 tablets (600 mg) 1 tablet (300 mg) 1 tablet (300 mg) 600 mg
2.4Recommended Dosage for Patients with Hepatic Impairment The recommended dose of abacavir sulfate in patients with mild hepatic impairment (Child-Pugh Class A) is 200 mg twice daily. To enable dose reduction, abacavir oral solution (10 mL twice daily) should be used for the treatment of these patients. The safety, efficacy, and pharmacokinetic properties of abacavir have not been established in patients with moderate to severe hepatic impairment; therefore, abacavir sulfate is contraindicated in these patients.
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Tablets: 300 mg scored Abacavir tablets contain 300 mg of abacavir as abacavir sulfate. The tablets are yellow coloured, capsule shaped, biconvex, film coated, having scoreline on both sides with "5" and "14" debossed on either side of scoreline on one side.
⛔ Contraindications ▾
4 CONTRAINDICATIONS Presence of HLA-B*5701 allele. ( 4 ) Prior hypersensitivity reaction to abacavir. ( 4 ) Moderate or severe hepatic impairment. ( 4 ) Abacavir tablet is contraindicated in patients: who have the HLA-B*5701 allele [see Warnings and Precautions ( 5.1 )] . with prior hypersensitivity reaction to abacavir [see Warnings and Precautions ( 5.1 )] . with moderate or severe hepatic impairment [see Use in Specific Populations ( 8.6 )] .
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Lactic acidosis and severe hepatomegaly with steatosis, including fatal cases, have been reported with the use of nucleoside analogues. ( 5.2 ) Immune reconstitution syndrome has been reported in patients treated with combination antiretroviral therapy. ( 5.3 )
5.1Hypersensitivity Reactions Serious and sometimes fatal hypersensitivity reactions have occurred with abacavir sulfate. These hypersensitivity reactions have included multi-organ failure and anaphylaxis and typically occurred within the first 6 weeks of treatment with abacavir sulfate (median time to onset was 9 days); although abacavir hypersensitivity reactions have occurred any time during treatment [see Adverse Reactions ( 6.1 )] . Patients who carry the HLA-B*5701 allele are at a higher risk of abacavir hypersensitivity reactions; although, patients who do not carry the HLA-B*5701 allele have developed hypersensitivity reactions.
Hypersensitivity to abacavir was reported in approximately 206 (8%) of 2,670 patients in 9 clinical trials with abacavir-containing products where HLA-B*5701 screening was not performed. The incidence of suspected abacavir hypersensitivity reactions in clinical trials was 1% when subjects carrying the HLA-B*5701 allele were excluded. In any patient treated with abacavir, the clinical diagnosis of hypersensitivity reaction must remain the basis of clinical decision making.
Due to the potential for severe, serious, and possibly fatal hypersensitivity reactions with abacavir sulfate: All patients should be screened for the HLA-B*5701 allele prior to initiating therapy with abacavir tablets or reinitiation of therapy with abacavir tablets, unless patients have a previously documented HLA-B*5701 allele assessment. Abacavir tablet is contraindicated in patients with a prior hypersensitivity reaction to abacavir and in HLA-B*5701-positive patients. Before starting abacavir tablets, review medical history for prior exposure to any abacavir-containing product.
NEVER restart abacavir tablets or any other abacavir-containing product following a hypersensitivity reaction to abacavir, regardless of HLA-B*5701 status. To reduce the risk of a life-threatening hypersensitivity reaction, regardless of HLA-B*5701 status, discontinue abacavir tablets immediately if a hypersensitivity reaction is suspected, even when other diagnoses are possible (e.g., acute onset respiratory diseases such as pneumonia, bronchitis, pharyngitis, or influenza; gastroenteritis; or reactions to other medications).
If a hypersensitivity reaction cannot be ruled out, do not restart abacavir tablets or any other abacavir-containing products because more severe symptoms which may include life-threatening hypotension and death, can occur within hours. If a hypersensitivity reaction is ruled out, patients may restart abacavir tablets. Rarely, patients who have stopped abacavir for reasons other than symptoms of hypersensitivity have also experienced life-threatening reactions within hours of reinitiating abacavir therapy.
Therefore, reintroduction of abacavir tablets or any other abacavir-containing product is recommended only if medical care can be readily accessed. A Medication Guide and Warning Card that provide information about recognition of hypersensitivity reactions should be dispensed with each new prescription and refill.
5.2Lactic Acidosis and Severe Hepatomegaly with Steatosis Lactic acidosis and severe hepatomegaly with steatosis, including fatal cases, have been reported with the use of nucleoside analogues, including abacavir. A majority of these cases have been in women. Female sex and obesity may be risk factors for the development of lactic acidosis and severe hepatomegaly with steatosis in patients treated with antiretroviral nucleoside analogues.
Treatment with abacavir tablets should be suspended in any patient who develops clinical or laboratory findings suggestive of lactic acidosis or pronounced hepatotoxicity, which may include he… [Excerpted — this section continues on DailyMed.]
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The most commonly reported adverse reactions of at least moderate intensity (incidence greater than or equal to 10%) in adult HIV-1 clinical trials were nausea, headache, malaise and fatigue, nausea and vomiting, and dreams/sleep disorders. ( 6.1 ) The most commonly reported adverse reactions of at least moderate intensity (incidence greater than or equal to 5%) in pediatric HIV-1 clinical trials were fever and/or chills, nausea and vomiting, skin rashes, and ear/nose/throat infections. ( 6.2 ) To report SUSPECTED ADVERSE REACTIONS, contact Cipla Ltd. at 1-866-604-3268 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
The following adverse reactions are discussed in other sections of the labeling: Serious and sometimes fatal hypersensitivity reactions [see Boxed Warning, Warnings and Precautions ( 5.1 )] . Lactic acidosis and severe hepatomegaly with steatosis [see Warnings and Precautions ( 5.2 )] . Immune reconstitution syndrome [see Warnings and Precautions ( 5.3 )] .
Myocardial infarction [see Warnings and Precautions ( 5.4 )] .
6.1Clinical Trials Experience in Adult Subjects Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. Serious and Fatal Abacavir-Associated Hypersensitivity Reactions In clinical trials, serious and sometimes fatal hypersensitivity reactions have occurred with abacavir [see Boxed Warning, Warnings and Precautions ( 5.1 )].
These reactions have been characterized by 2 or more of the following signs or symptoms: (1) fever; (2) rash; (3) gastrointestinal symptoms (including nausea, vomiting, diarrhea, or abdominal pain); (4) constitutional symptoms (including generalized malaise, fatigue, or achiness); (5) respiratory symptoms (including dyspnea, cough, or pharyngitis). Almost all abacavir hypersensitivity reactions include fever and/or rash as part of the syndrome. Other signs and symptoms have included lethargy, headache, myalgia, edema, arthralgia, and paresthesia.
Anaphylaxis, liver failure, renal failure, hypotension, adult respiratory distress syndrome, respiratory failure, myolysis, and death have occurred in association with these hypersensitivity reactions. Physical findings have included lymphadenopathy, mucous membrane lesions (conjunctivitis and mouth ulcerations), and maculopapular or urticarial rash (although some patients had other types of rashes and others did not have a rash). There were reports of erythema multiforme.
Laboratory abnormalities included elevated liver chemistries, elevated creatine phosphokinase, elevated creatinine, and lymphopenia, and abnormal chest x-ray findings (predominantly infiltrates, which were localized). Additional Adverse Reactions with Use of Abacavir sulfate Therapy-Naive Adults : Treatment-emergent clinical adverse reactions (rated by the investigator as moderate or severe) with a greater than or equal to 5% frequency during therapy with abacavir sulfate 300 mg twice daily, lamivudine 150 mg twice daily, and efavirenz 600 mg daily compared with zidovudine 300 mg twice daily, lamivudine 150 mg twice daily, and efavirenz 600 mg daily from CNA30024 are listed in Table 2.
Table 2. Treatment-Emergent (All Causality) Adverse Reactions of at Least Moderate Intensity (Grades 2-4, Greater than or Equal to 5% Frequency) in Therapy-Naive Adults (CNA30024 This trial used double-blind ascertainment of suspected hypersensitivity reactions. During the blinded portion of the trial, suspected hypersensitivity to abacavir was reported by investigators in 9% of 324 subjects in the abacavir group and 3% of 325 subjects in the zidovudine group. ) through 48 Weeks of Treatment Adverse Reaction Abacavir sulfate plus Lamivudine plus Efavirenz (n = 324) Zidovudine plus Lamivudine plus Efavirenz (n = 325) Dreams/sleep disorders 10% 10% Dru… [Excerpted — this section continues on DailyMed.]
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Methadone: An increased methadone dose may be required in a small number of patients. ( 7.1 ) Riociguat: The riociguat dose may need to be reduced. ( 7.2 )
7.1Methadone In a trial of 11 HIV-1-infected subjects receiving methadone-maintenance therapy with 600 mg of abacavir sulfate twice daily (twice the currently recommended dose), oral methadone clearance increased [see Clinical Pharmacology ( 12.3 )] . This alteration will not result in a methadone dose modification in the majority of patients; however, an increased methadone dose may be required in a small number of patients.
7.2Riociguat Coadministration with fixed-dose abacavir/dolutegravir/lamivudine resulted in increased riociguat exposure, which may increase the risk of riociguat adverse reactions [see Clinical Pharmacology ( 12.3 )] . The riociguat dose may need to be reduced. See full prescribing information for ADEMPAS (riociguat).
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Lactation: Women infected with HIV should be instructed not to breastfeed due to potential for HIV transmission. ( 8.2 )
8.1Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to abacavir sulfate during pregnancy. Healthcare Providers are encouraged to register patients by calling the Antiretroviral Pregnancy Registry (APR) at 1-800-258-4263. Risk Summary Available data from the APR show no difference in the overall risk of birth defects for abacavir compared with the background rate for birth defects of 2.7% in the Metropolitan Atlanta Congenital Defects Program (MACDP) reference population (see Data) .
The APR uses the MACDP as the U.S. reference population for birth defects in the general population. The MACDP evaluates women and infants from a limited geographic area and does not include outcomes for births that occurred at less than 20 weeks' gestation. The rate of miscarriage is not reported in the APR.
The estimated background rate of miscarriage in clinically recognized pregnancies in the U.S. general population is 15% to 20%. The background risk for major birth defects and miscarriage for the indicated population is unknown. In animal reproduction studies, oral administration of abacavir to pregnant rats during organogenesis resulted in fetal malformations and other embryonic and fetal toxicities at exposures 35 times the human exposure (AUC) at the recommended clinical daily dose.
However, no adverse developmental effects were observed following oral administration of abacavir to pregnant rabbits during organogenesis, at exposures approximately 9 times the human exposure (AUC) at the recommended clinical dose (see Data) . Data Human Data: Based on prospective reports to the APR of exposures to abacavir during pregnancy resulting in live births (including over 1,300 exposed in the first trimester and over 1,300 exposed in second/third trimester), there was no difference between the overall risk of birth defects for abacavir compared with the background birth defect rate of 2.7% in the U.S. reference population of the MACDP.
The prevalence of defects in live births was 3.2% (95% CI: 2.3% to 4.3%) following first trimester exposure to abacavir-containing regimens and 2.9% (95% CI: 2.1% to 4.0%) following second/third trimester exposure to abacavir-containing regimens. Abacavir has been shown to cross the placenta and concentrations in neonatal plasma at birth were essentially equal to those in maternal plasma at delivery [see Clinical Pharmacology ( 12.3 )] . Animal Data: Abacavir was administered orally to pregnant rats (at 100, 300, and 1,000 mg per kg per day) and rabbits (at 125, 350, or 700 mg per kg per day) during organogenesis (on Gestation Days 6 through 17 and 6 through 20, respectively).
Fetal malformations (increased incidences of fetal anasarca and skeletal malformations) or developmental toxicity (decreased fetal body weight and crown-rump length) were observed in rats at doses up to 1,000 mg per kg per day, resulting in exposures approximately 35 times the human exposure (AUC) at the recommended daily dose. No developmental effects were observed in rats at 100 mg per kg per day, resulting in exposures (AUC) 3.5 times the human exposure at the recommended daily dose. In a fertility and early embryo-fetal development study conducted in rats (at 60, 160, or 500 mg per kg per day), embryonic and fetal toxicities (increased resorptions, decreased fetal body weights) or toxicities to the offspring (increased incidence of stillbirth and lower body weights) occurred at doses up to 500 mg per kg per day.
No developmental effects were observed in rats at 60 mg per kg per day, resulting in exposures (AUC) approximately 4 times the human exposure at the recommended daily dose. Studies in pregnant rats showed that abacavir is transferred to the fetus through the placenta. In pregnant rabbits, no developmental toxi… [Excerpted — this section continues on DailyMed.]
🤰 Pregnancy ▾
8.1Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to abacavir sulfate during pregnancy. Healthcare Providers are encouraged to register patients by calling the Antiretroviral Pregnancy Registry (APR) at 1-800-258-4263. Risk Summary Available data from the APR show no difference in the overall risk of birth defects for abacavir compared with the background rate for birth defects of 2.7% in the Metropolitan Atlanta Congenital Defects Program (MACDP) reference population (see Data) .
The APR uses the MACDP as the U.S. reference population for birth defects in the general population. The MACDP evaluates women and infants from a limited geographic area and does not include outcomes for births that occurred at less than 20 weeks' gestation. The rate of miscarriage is not reported in the APR.
The estimated background rate of miscarriage in clinically recognized pregnancies in the U.S. general population is 15% to 20%. The background risk for major birth defects and miscarriage for the indicated population is unknown. In animal reproduction studies, oral administration of abacavir to pregnant rats during organogenesis resulted in fetal malformations and other embryonic and fetal toxicities at exposures 35 times the human exposure (AUC) at the recommended clinical daily dose.
However, no adverse developmental effects were observed following oral administration of abacavir to pregnant rabbits during organogenesis, at exposures approximately 9 times the human exposure (AUC) at the recommended clinical dose (see Data) . Data Human Data: Based on prospective reports to the APR of exposures to abacavir during pregnancy resulting in live births (including over 1,300 exposed in the first trimester and over 1,300 exposed in second/third trimester), there was no difference between the overall risk of birth defects for abacavir compared with the background birth defect rate of 2.7% in the U.S. reference population of the MACDP.
The prevalence of defects in live births was 3.2% (95% CI: 2.3% to 4.3%) following first trimester exposure to abacavir-containing regimens and 2.9% (95% CI: 2.1% to 4.0%) following second/third trimester exposure to abacavir-containing regimens. Abacavir has been shown to cross the placenta and concentrations in neonatal plasma at birth were essentially equal to those in maternal plasma at delivery [see Clinical Pharmacology ( 12.3 )] . Animal Data: Abacavir was administered orally to pregnant rats (at 100, 300, and 1,000 mg per kg per day) and rabbits (at 125, 350, or 700 mg per kg per day) during organogenesis (on Gestation Days 6 through 17 and 6 through 20, respectively).
Fetal malformations (increased incidences of fetal anasarca and skeletal malformations) or developmental toxicity (decreased fetal body weight and crown-rump length) were observed in rats at doses up to 1,000 mg per kg per day, resulting in exposures approximately 35 times the human exposure (AUC) at the recommended daily dose. No developmental effects were observed in rats at 100 mg per kg per day, resulting in exposures (AUC) 3.5 times the human exposure at the recommended daily dose. In a fertility and early embryo-fetal development study conducted in rats (at 60, 160, or 500 mg per kg per day), embryonic and fetal toxicities (increased resorptions, decreased fetal body weights) or toxicities to the offspring (increased incidence of stillbirth and lower body weights) occurred at doses up to 500 mg per kg per day.
No developmental effects were observed in rats at 60 mg per kg per day, resulting in exposures (AUC) approximately 4 times the human exposure at the recommended daily dose. Studies in pregnant rats showed that abacavir is transferred to the fetus through the placenta. In pregnant rabbits, no developmental toxicities and no increases in fetal malformations occurred at up to the highest dose evaluated, resulting in exposures (AUC) approximately 9 times the hum… [Excerpted — this section continues on DailyMed.]
🧒 Pediatric Use ▾
8.4Pediatric Use The safety and effectiveness of abacavir sulfate have been established in pediatric patients aged 3 months and older. Use of abacavir sulfate is supported by pharmacokinetic trials and evidence from adequate and well-controlled trials of abacavir sulfate in adults and pediatric subjects [see Dosage and Administration ( 2.3 ), Adverse Reactions ( 6.2 ), Clinical Pharmacology ( 12.3 ), Clinical Studies ( 14.2 )] .
🧓 Geriatric Use ▾
8.5Geriatric Use Clinical trials of abacavir sulfate did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. In general, caution should be exercised in the administration of abacavir sulfate in elderly patients reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.
🆘 Overdosage ▾
10 OVERDOSAGE There is no known specific treatment for overdose with abacavir sulfate. If overdose occurs, the patient should be monitored and standard supportive treatment applied as required. It is not known whether abacavir can be removed by peritoneal dialysis or hemodialysis.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Abacavir is an antiretroviral agent [see Microbiology ( 12.4 )] .
12.3Pharmacokinetics Pharmacokinetics in Adults The pharmacokinetic properties of abacavir were independent of dose over the range of 300 to 1,200 mg per day. Absorption: Following oral administration, abacavir is rapidly absorbed and extensively distributed. The geometric mean absolute bioavailability of the tablet was 83%.
Plasma abacavir AUC was similar following administration of the oral solution or tablets. After oral administration of 300 mg twice daily in 20 subjects, the steady-state peak serum abacavir concentration (C max ) was 3.0 ± 0.89 mcg per mL (mean ± SD) and AUC (0-12 h) was 6.02 ± 1.73 mcg•hour per mL. After oral administration of a single dose of 600 mg of abacavir in 20 subjects, C max was 4.26 ± 1.19 mcg per mL (mean ± SD) and AUC ¥ was 11.95 ± 2.51 mcg•hour per mL.
Effect of Food: Bioavailability of abacavir tablets was assessed in the fasting and fed states with no significant difference in systemic exposure (AUC∞); therefore, abacavir tablets may be administered with or without food. Systemic exposure to abacavir was comparable after administration of abacavir oral solution and abacavir tablets. Therefore, these products may be used interchangeably.
Distribution: The apparent volume of distribution after IV administration of abacavir was 0.86 ±
0.15L per kg, suggesting that abacavir distributes into extravascular space. In 3 subjects, the CSF AUC (0-6 h) to plasma abacavir AUC (0-6 h) ratio ranged from 27% to 33%. Binding of abacavir to human plasma proteins is approximately 50% and was independent of concentration.
Total blood and plasma drug-related radioactivity concentrations are identical, demonstrating that abacavir readily distributes into erythrocytes. Elimination: In single-dose trials, the observed elimination half-life (t½) was 1.54 ± 0.63 hours. After intravenous administration, total clearance was 0.80 ±
0.24L per hour per kg (mean ± SD). Metabolism: In humans, abacavir is not significantly metabolized by cytochrome P450 enzymes. The primary routes of elimination of abacavir are metabolism by alcohol dehydrogenase to form the 5¢-carboxylic acid and glucuronyl transferase to form the 5¢-glucuronide.
The metabolites do not have antiviral activity. In vitro experiments reveal that abacavir does not inhibit human CYP3A4, CYP2D6, or CYP2C9 activity at clinically relevant concentrations. Excretion : Elimination of abacavir was quantified in a mass balance trial following administration of a 600-mg dose of 14 C-abacavir: 99% of the radioactivity was recovered, 1.2% was excreted in the urine as abacavir, 30% as the 5¢-carboxylic acid metabolite, 36% as the 5¢-glucuronide metabolite, and 15% as unidentified minor metabolites in the urine.
Fecal elimination accounted for 16% of the dose. Specific Populations Patients with Renal Impairment: The pharmacokinetic properties of abacavir sulfate have not been determined in patients with impaired renal function. Renal excretion of unchanged abacavir is a minor route of elimination in humans.
Patients with Hepatic Impairment: The pharmacokinetics of abacavir have been studied in subjects with mild hepatic impairment (Child-Pugh Class A). Results showed that there was a mean increase of 89% in the abacavir AUC and an increase of 58% in the half-life of abacavir after a single dose of 600 mg of abacavir. The AUCs of the metabolites were not modified by mild liver disease; however, the rates of formation and elimination of the metabolites were decreased [see Contraindications (4), Use in Specific Populations (8.6)] .
Pregnant Women: Abacavir pharmacokinetics were studied in 25 pregnant women during the last trimester of pregnancy receiving abacavir 300 mg twice daily. Abacavir exposure (AUC) during pregnancy was similar to those in postpartum and in HIV-infected non-pregnant historical controls. Consistent with passive diffusion of abacavir ac… [Excerpted — this section continues on DailyMed.]
🧬 Mechanism of Action ▾
12.1Mechanism of Action Abacavir is an antiretroviral agent [see Microbiology ( 12.4 )] .
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Abacavir tablets USP 300 mg, containing abacavir sulfate equivalent to 300 mg abacavir are yellow coloured, capsule shaped, biconvex, film coated tablets, having scoreline on both sides with "5" and "14" debossed on either side of scoreline on one side. They are packaged as follows: Bottles of 60 tablets (NDC 69097-514-03). Store at 20° to 25°C (68° to 77°F). [See USP Controlled Room Temperature.]
📋 Description ▾
11 DESCRIPTION Abacavir sulfate is a synthetic carbocyclic nucleoside analogue with inhibitory activity against HIV-1. The chemical name of abacavir sulfate is ( 1 S,cis) -4-[2-amino-6- (cyclopropylamino)-9 H -purin-9-yl]-2-cyclopentene-1-methanol sulfate (salt) (2:1). Abacavir sulfate is the enantiomer with 1S , 4R absolute configuration on the cyclopentene ring.
It has a molecular formula of (C 14 H 18 N 6 O) 2 •H 2 SO 4 and a molecular weight of 670.76 g per mol. It has the following structural formula: Abacavir sulfate is a white to off-white solid and is soluble in water. Abacavir tablets USP 300 mg are for oral administration.
Each tablet contains abacavir sulfate equivalent to 300 mg of abacavir as active ingredient and the following inactive ingredients: microcrystalline cellulose, sodium starch glycolate, corn starch, hypromellose, magnesium stearate, colloidal silicon dioxide and opadry yellow 15C52843 (consist of hypromellose, titanium dioxide, polyethylene glycol, iron oxide yellow, polysorbate 80). In vivo, abacavir sulfate dissociates to its free base, abacavir. Dosages are expressed in terms of abacavir. abacavir
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Medication Guide). Hypersensitivity Reactions Inform patients: that a Medication Guide and Warning Card summarizing the symptoms of the abacavir hypersensitivity reaction and other product information will be dispensed by the pharmacist with each new prescription and refill of abacavir tablets, and instruct the patient to read the Medication Guide and Warning Card every time to obtain any new information that may be present about abacavir sulfate.
The complete text of the Medication Guide is reprinted at the end of this document. to carry the Warning Card with them. how to identify a hypersensitivity reaction [see Warnings and Precautions ( 5.1 ), Medication Guide] . that if they develop symptoms consistent with a hypersensitivity reaction they should call their healthcare provider right away to determine if they should stop taking abacavir tablets. that a hypersensitivity reaction can worsen and lead to hospitalization or death if abacavir sulfate is not immediately discontinued. to not restart abacavir tablets or any other abacavir-containing product following a hypersensitivity reaction because more severe symptoms can occur within hours and may include life-threatening hypotension and death. that if they have a hypersensitivity reaction, they should dispose of any unused abacavir tablets to avoid restarting abacavir. that a hypersensitivity reaction is usually reversible if it is detected promptly and abacavir tablet is stopped right away. that if they have interrupted abacavir tablets for reasons other than symptoms of hypersensitivity (for example, those who have an interruption in drug supply), a serious or fatal hypersensitivity reaction may occur with reintroduction of abacavir. to not restart abacavir tablets or any other abacavir-containing product without medical consultation and only if medical care can be readily accessed by the patient or others.
Lactic Acidosis/Hepatomegaly with Steatosis Advise patients that lactic acidosis and severe hepatomegaly with steatosis have been reported with use of nucleoside analogues and other antiretrovirals. Advise patients to stop taking abacavir tablets if they develop clinical symptoms suggestive of lactic acidosis or pronounced hepatotoxicity [see, Warnings and Precautions ( 5.2 )] . Immune Reconstitution Syndrome Advise patients to inform their healthcare provider immediately of any signs and symptoms of infection as inflammation from previous infection may occur soon after combination antiretroviral therapy, including when abacavir tablet is started [see Warnings and Precautions ( 5.3 )].
Pregnancy Registry Advise patients that there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to abacavir sulfate during pregnancy [see Use in Specific Populations ( 8.1 )] . Lactation Instruct women with HIV-1 infection not to breastfeed because HIV-1 can be passed to the baby in the breast milk [see Use in Specific Populations ( 8.2 )] . Missed Dose Instruct patients that if they miss a dose of abacavir tablets, to take it as soon as they remember.
Advise patients not to double their next dose or take more than the prescribed dose [see Dosage and Administration ( 2 )] . Availability of Medication Guide Instruct patients to read the Medication Guide before starting abacavir sulfate and to re-read it each time the prescription is renewed. Instruct patients to inform their physician or pharmacist if they develop any unusual symptom, or if any known symptom persists or worsens.
Disclaimer: Other brands listed are the registered trademarks of their respective owners and are not trademarks of Cipla Limited. Revised: 12/2020 Manufactured by Cipla Limited MIDC, Patalganga M.S. 410220, INDIA Manufactured for: Cipla USA, Inc.
10 Independence Boulevard, Suite 300, Warren New Jersey - 07059
💬 Medication Guide ▾
MEDICATION GUIDE Abacavir (a-BAK-a-vir) Tablets What is the most important information I should know about abacavir tablets? Abacavir tablets can cause serious side effects, including: Serious allergic reactions (hypersensitivity reaction) that can cause death have happened with abacavir tablet and other abacavir-containing products. Your risk of this allergic reaction is much higher if you have a gene variation called HLA-B*5701.
Your healthcare provider can determine with a blood test if you have this gene variation. If you get a symptom from 2 or more of the following groups while taking abacavir tablets, call your healthcare provider right away to find out if you should stop taking abacavir tablets. Symptom(s) Group 1 Fever Group 2 Rash Group 3 Nausea, vomiting, diarrhea, abdominal (stomach area) pain Group 4 Generally ill feeling, extreme tiredness, or achiness Group 5 Shortness of breath, cough, sore throat A list of these symptoms is on the Warning Card your pharmacist gives you.
Carry this Warning Card with you at all times. If you stop abacavir tablets because of an allergic reaction, never take abacavir tablets or any other abacavir-containing medicine (EPZICOM, TRIUMEQ, or TRIZIVIR) again. If you have an allergic reaction, dispose of any unused abacavir tablets.
Ask your pharmacist how to properly dispose of medicines. If you take abacavir tablets or any other abacavir-containing medicine again after you have had an allergic reaction, within hours you may get life-threatening symptoms that may include very low blood pressure or death. If you stop abacavir tablets for any other reason, even for a few days, and you are not allergic to abacavir tablets, talk with your healthcare provider before taking it again.
Taking abacavir tablets again can cause a serious allergic or life-threatening reaction, even if you never had an allergic reaction to it before. If your healthcare provider tells you that you can take abacavir tablets again, start taking it when you are around medical help or people who can call a healthcare provider if you need one. What is abacavir tablets?
Abacavir tablet is a prescription HIV-1 (Human Immunodeficiency Virus type 1) medicine used with other antiretroviral medicines to treat HIV-1 infection. HIV-1 is the virus that causes Acquired Immune Deficiency Syndrome (AIDS). The safety and effectiveness of abacavir sulfate has not been established in children under 3 months of age.
When used with other antiretroviral medicines to treat HIV-1 infection, abacavir tablets may help: reduce the amount of HIV-1 in your blood. This is called "viral load". increase the number of CD4+ (T) cells in your blood, that help fight off other infections. Reducing the amount of HIV-1 and increasing the CD4+ (T) cells in your blood may help improve your immune system.
This may reduce your risk of death or getting infections that can happen when your immune system is weak (opportunistic infections). Abacavir tablets does not cure HIV-1 infection or AIDS. You must keep taking HIV-1 medicines to control HIV-1 infection and decrease HIV-related illnesses.
Who should not take abacavir tablets? Do not take abacavir tablets if you: have a certain type of gene variation called the HLA-B*5701 allele. Your healthcare provider will test you for this before prescribing treatment with abacavir tablets. are allergic to abacavir or any of the ingredients in abacavir tablets.
See the end of this Medication Guide for a complete list of ingredients in abacavir tablets. have liver problems. What should I tell my healthcare provider before taking abacavir tablets? Before you take abacavir tablets, tell your healthcare provider if you: have been tested and know whether or not you have a particular gene variation called HLA-B*5701. have or have had liver problems, including hepatitis B or C virus infection. have heart problems, smoke, or have diseases that increase your risk of heart disease such as high blood pressure, high cholesterol, or d… [Excerpted — this section continues on DailyMed.]
🧬 Pharmacokinetics ▾
12.3Pharmacokinetics Pharmacokinetics in Adults The pharmacokinetic properties of abacavir were independent of dose over the range of 300 to 1,200 mg per day. Absorption: Following oral administration, abacavir is rapidly absorbed and extensively distributed. The geometric mean absolute bioavailability of the tablet was 83%.
Plasma abacavir AUC was similar following administration of the oral solution or tablets. After oral administration of 300 mg twice daily in 20 subjects, the steady-state peak serum abacavir concentration (C max ) was 3.0 ± 0.89 mcg per mL (mean ± SD) and AUC (0-12 h) was 6.02 ± 1.73 mcg•hour per mL. After oral administration of a single dose of 600 mg of abacavir in 20 subjects, C max was 4.26 ± 1.19 mcg per mL (mean ± SD) and AUC ¥ was 11.95 ± 2.51 mcg•hour per mL.
Effect of Food: Bioavailability of abacavir tablets was assessed in the fasting and fed states with no significant difference in systemic exposure (AUC∞); therefore, abacavir tablets may be administered with or without food. Systemic exposure to abacavir was comparable after administration of abacavir oral solution and abacavir tablets. Therefore, these products may be used interchangeably.
Distribution: The apparent volume of distribution after IV administration of abacavir was 0.86 ±
0.15L per kg, suggesting that abacavir distributes into extravascular space. In 3 subjects, the CSF AUC (0-6 h) to plasma abacavir AUC (0-6 h) ratio ranged from 27% to 33%. Binding of abacavir to human plasma proteins is approximately 50% and was independent of concentration.
Total blood and plasma drug-related radioactivity concentrations are identical, demonstrating that abacavir readily distributes into erythrocytes. Elimination: In single-dose trials, the observed elimination half-life (t½) was 1.54 ± 0.63 hours. After intravenous administration, total clearance was 0.80 ±
0.24L per hour per kg (mean ± SD). Metabolism: In humans, abacavir is not significantly metabolized by cytochrome P450 enzymes. The primary routes of elimination of abacavir are metabolism by alcohol dehydrogenase to form the 5¢-carboxylic acid and glucuronyl transferase to form the 5¢-glucuronide.
The metabolites do not have antiviral activity. In vitro experiments reveal that abacavir does not inhibit human CYP3A4, CYP2D6, or CYP2C9 activity at clinically relevant concentrations. Excretion : Elimination of abacavir was quantified in a mass balance trial following administration of a 600-mg dose of 14 C-abacavir: 99% of the radioactivity was recovered, 1.2% was excreted in the urine as abacavir, 30% as the 5¢-carboxylic acid metabolite, 36% as the 5¢-glucuronide metabolite, and 15% as unidentified minor metabolites in the urine.
Fecal elimination accounted for 16% of the dose. Specific Populations Patients with Renal Impairment: The pharmacokinetic properties of abacavir sulfate have not been determined in patients with impaired renal function. Renal excretion of unchanged abacavir is a minor route of elimination in humans.
Patients with Hepatic Impairment: The pharmacokinetics of abacavir have been studied in subjects with mild hepatic impairment (Child-Pugh Class A). Results showed that there was a mean increase of 89% in the abacavir AUC and an increase of 58% in the half-life of abacavir after a single dose of 600 mg of abacavir. The AUCs of the metabolites were not modified by mild liver disease; however, the rates of formation and elimination of the metabolites were decreased [see Contraindications (4), Use in Specific Populations (8.6)] .
Pregnant Women: Abacavir pharmacokinetics were studied in 25 pregnant women during the last trimester of pregnancy receiving abacavir 300 mg twice daily. Abacavir exposure (AUC) during pregnancy was similar to those in postpartum and in HIV-infected non-pregnant historical controls. Consistent with passive diffusion of abacavir across the placenta, abacavir concentrations in neonatal plasma cord samples at birth were essentially equal to those… [Excerpted — this section continues on DailyMed.]
🔬 Clinical Studies ▾
14 CLINICAL STUDIES
14.1Adult Trials Therapy-Naive Adults CNA30024 was a multicenter, double-blind, controlled trial in which 649 HIV-1-infected, therapy-naive adults were randomized and received either abacavir sulfate (300 mg twice daily), lamivudine (150 mg twice daily), and efavirenz (600 mg once daily); or zidovudine (300 mg twice daily), lamivudine (150 mg twice daily), and efavirenz (600 mg once daily). The duration of double-blind treatment was at least 48 weeks. Trial participants were male (81%), white (51%), black (21%), and Hispanic (26%).
The median age was 35 years; the median pretreatment CD4+ cell count was 264 cells per mm 3 , and median plasma HIV-1 RNA was 4.79 log 10 copies per mL. The outcomes of randomized treatment are provided in Table 7. Table 7.
Outcomes of Randomized Treatment through Week 48 (CNA30024) Outcome Abacavir sulfate plus Lamivudine plus Efavirenz (n = 324) Zidovudine plus Lamivudine plus Efavirenz (n = 325) Responder Subjects achieved and maintained confirmed HIV-1 RNA less than or equal to 50 copies per mL (less than 400 copies per mL) through Week 48 (Roche AMPLICOR Ultrasensitive HIV-1 MONITOR standard test
1.0PCR). 69% (73%) 69% (71%) Virologic failures Includes viral rebound, insufficient viral response according to the investigator, and failure to achieve confirmed less than or equal to 50 copies per mL by Week 48. 6% 4% Discontinued due to adverse reactions 14% 16% Discontinued due to other reasons Includes consent withdrawn, lost to follow up, protocol violations, those with missing data, clinical progression, and other.
10% 11% After 48 weeks of therapy, the median CD4+ cell count increases from baseline were 209 cells per mm 3 in the group receiving abacavir sulfate and 155 cells per mm 3 in the zidovudine group. Through Week 48, 8 subjects (2%) in the group receiving abacavir sulfate (5 CDC classification C events and 3 deaths) and 5 subjects (2%) on the zidovudine arm (3 CDC classification C events and 2 deaths) experienced clinical disease progression. CNA3005 was a multicenter, double-blind, controlled trial in which 562 HIV-1-infected, therapy-naive adults were randomized to receive either abacavir sulfate (300 mg twice daily) plus COMBIVIR (lamivudine 150 mg/zidovudine 300 mg twice daily), or indinavir (800 mg 3 times a day) plus COMBIVIR twice daily.
The trial was stratified at randomization by pre-entry plasma HIV-1 RNA 10,000 to 100,000 copies per mL and plasma HIV-1 RNA greater than 100,000 copies per mL. Trial participants were male (87%), white (73%), black (15%), and Hispanic (9%). At baseline the median age was 36 years; the median baseline CD4+ cell count was 360 cells per mm 3 , and median baseline plasma HIV-1 RNA was 4.8 log 10 copies per mL.
Proportions of subjects with plasma HIV-1 RNA less than 400 copies per mL (using Roche AMPLICOR HIV-1 MONITOR Test) through 48 weeks of treatment are summarized in Table 8. Table 8. Outcomes of Randomized Treatment through Week 48 (CNA3005) Outcome Abacavir sulfate plus Lamivudine/Zidovudine (n = 262) Indinavir plus Lamivudine/Zidovudine (n = 265) Responder Subjects achieved and maintained confirmed HIV-1 RNA less than 400 copies per mL.
49% 50% Virologic failures Includes viral rebound and failure to achieve confirmed less than 400 copies per mL by Week 48. 31% 28% Discontinued due to adverse reactions 10% 12% Discontinued due to other reasons Includes consent withdrawn, lost to follow up, protocol violations, those with missing data, clinical progression, and other. 11% 10% Treatment response by plasma HIV-1 RNA strata is shown in Table 9.
Table 9. Proportions of Responders through Week 48 by Screening Plasma HIV-1 RNA Levels (CNA3005) Screening HIV-1 RNA (copies/mL) Abacavir sulfate plus Lamivudine/Zidovudine (n = 262) Indinavir plus Lamivudine/Zidovudine (n = 265) <400 copies/mL n <400 copies/mL n ≥10,000 - ≤100,000 50% 166 48% 165 >100,000 48% 96 52% 100 In subjects with baseline viral load greater than 100,000 copi… [Excerpted — this section continues on DailyMed.]
🧪 Nonclinical Toxicology ▾
13 NONCLINICAL TOXICOLOGY
13.1Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenicity Abacavir was administered orally at 3 dosage levels to separate groups of mice and rats in 2-year carcinogenicity studies. Results showed an increase in the incidence of malignant and non-malignant tumors. Malignant tumors occurred in the preputial gland of males and the clitoral gland of females of both species, and in the liver of female rats.
In addition, non-malignant tumors also occurred in the liver and thyroid gland of female rats. These observations were made at systemic exposures in the range of 6 to 32 times the human exposure at the recommended dose of 600 mg. Mutagenicity Abacavir induced chromosomal aberrations both in the presence and absence of metabolic activation in an in vitro cytogenetic study in human lymphocytes.
Abacavir was mutagenic in the absence of metabolic activation, although it was not mutagenic in the presence of metabolic activation in an L5178Y mouse lymphoma assay. Abacavir was clastogenic in males and not clastogenic in females in an in vivo mouse bone marrow micronucleus assay. Abacavir was not mutagenic in bacterial mutagenicity assays in the presence and absence of metabolic activation.
Impairment of Fertility Abacavir did not affect male or female fertility in rats at a dose associated with exposures (AUC) approximately 3.3 times (male) or 4.1 times (female) those in humans at the clinically recommended dose.
13.2Animal Toxicology and/or Pharmacology Myocardial degeneration was found in mice and rats following administration of abacavir for 2 years. The systemic exposures were equivalent to 7 to 24 times the expected systemic exposure in humans at a dose of 600 mg. The clinical relevance of this finding has not been determined.
📄 Package Label / Principal Display Panel ▾
PACKAGE LABEL.PRINCIPAL DISPLAY PANEL label carton