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topotecan hydrochloride 4 mg/4mL Injection, Powder, Lyophilized, For Solution — NDC 16729-0151-31 package photo

topotecan hydrochloride 4 mg/4mL Injection, Powder, Lyophilized, For Solution

by Accord Healthcare, Inc. · 1 VIAL in 1 PACKAGE (16729-151-31) / 4 mL in 1 VIAL
NDC 16729-0151-31
🏷️ FDA NDC (as labeled) 16729-151-31 billing pads the product segment with a zero
Rx only Generic On market Non-controlled
🗂️ Data synced Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

🆔 Identity & classification

FDA NDC (as labeled) 16729-151-31
Product NDC 16729-151
11-digit billing NDC 16729015131
NCPDP billing unit EA — each (per item)
RxCUI 1799416
UNII 956S425ZCY
UPC 0316729151313
Application # ANDA202351
SPL Set ID 729b2b22-1344-44f3-b614-14f6ec3c263e
Established class (EPC) Topoisomerase Inhibitor
Mechanism of action Topoisomerase Inhibitors
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2013-07-23
Route INTRAVENOUS
Dosage form INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION
Substance TOPOTECAN HYDROCHLORIDE
GPI-14 21550080102120
GPI class Topotecan HCl
GCN Seq No 026807
GCN 22661
HICL code 011381
Ingredient (HICL) Topotecan Hcl
HIC1 code V
Therapeutic class — broad (HIC1) Neoplasms
HIC2 code V3
Therapeutic class — intermediate (HIC2) Antineoplastic Drugs (Continued 1)
HIC3 code V3E
Therapeutic class — specific (HIC3) Antineoplastic - Topoisomerase I Inhibitors
AHFS code 10:00.00.00
AHFS class Antineoplastic Agents
FDB label name TOPOTECAN HCL 4 MG VIAL
FDB brand name Topotecan Hcl
Legend status F — Federal legend — prescription drug or device
TE code (Orange Book) AP · RLD · RS
Why two NDCs? The FDA registers this code as 16729-151-31 — a 5-3-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the product segment → 16729-0151-31. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

🏷️ RxNorm drug class

This medicine belongs to the Topoisomerase Inhibitor class.

Pharmacologic class Topoisomerase Inhibitor
Drug family (ATC) Topoisomerase 1 (TOP1) inhibitors
How it works Topoisomerase Inhibitors
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

🏭 Manufacturer & labeler

LabelerAccord Healthcare, Inc.
Application holderACCORD HEALTHCARE INC
FDA applicationANDA202351 (ANDA)
Labeler code16729
First marketedJul 2013
Product typeHuman Prescription Drug
Portfolio67 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

🩺 Clinical

Label name TOPOTECAN HCL 4 MG VIAL Ingredient Topotecan Hcl
📖 What it is MedlinePlus · NLM

Topotecan injection is used to treat ovarian cancer (cancer that begins in the female reproductive organs where eggs are formed) and small cell lung cancer (a type of cancer that begins in the lungs) that have spread and did not improve after treatment with other medications. It is also used together with other medications to treat cervical cancer (cancer that begins in the opening of the uterus [womb]) that has not improved or has come back after other treatments. Topotecan is in a class of medications called topoisomerase type I inhibitors. It works by killing cancer cells.

Read the full MedlinePlus article ↗
📗 Our plain-language guide HelloPharmacist
  • Topotecan is a chemotherapy used for three types of cancer: small cell lung cancer (SCLC), metastatic ovarian cancer, and advanced cervical cancer. The IV form covers all three, de...
  • What exactly is topotecan used to treat?
  • The most common effects are drops in blood counts — low white blood cells, red blood cells, and platelets — along with nausea, vomiting, hair loss, fatigue, and bowel changes. Most...
  • What side effects should I expect, and which ones should make me call someone right away?
📖 Read our full Topotecan guide →

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

🧪 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.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII QTT17582CB
    A strong acid used to adjust and maintain the proper pH level in liquid medicines, ensuring stability and preventing breakdown of active ingredients.
  • UNII 3OWL53L36A
    A natural sugar alcohol derived from seaweed or synthesized in the lab. It's used as a filler to add bulk, a sweetener in sugar-free formulas, and a disintegrant to help tablets break apart in the stomach.
  • UNII 55X04QC32I
    A strong alkaline chemical used to adjust and maintain the pH balance of liquid medicines. It helps keep the medicine stable and ensures it stays effective during storage.
  • UNII W4888I119H
    Tartaric acid is a natural organic acid found in grapes and tamarinds. In medicines, it works as a buffer to control acidity, an antioxidant to prevent spoilage, and sometimes a flavoring or binding agent.

4 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — 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.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

💲 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 systemPer mLPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo $194.63 $778.54 / 4 ml
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
Medicare Part B allowsASP · J9351 $2.759 / J9351 unit —
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

🧾 Billing & reimbursement

FDA NDC (as labeled)16729-151-31
11-digit billing NDC16729-0151-31
Format5-3-2 as registered → padded to 5-4-2 for billing (zero added to the product segment)
HCPCS J-codeJ9351
DescriptorInjection, topotecan, 0.1 mg
Billing units / pkg40 units
Crosswalk sourceCMS ASP NDC-HCPCS Crosswalk
Where does this data come from?
The HCPCS J-code crosswalk comes from the CMS ASP NDC-HCPCS crosswalk and the DMEPDAC (DME MAC) NDC-HCPCS crosswalk — free public CMS data. Billing units are derived from the code’s descriptor and the package amount.

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Hycamtin 4 mg/4mL 00078-0674-61 Novartis 1 vial — AP FDA listed —
topotecan hydrochloride 4 mg/4mLthis 16729-0151-31 Accord 1 vial — AP FDA listed —
Topotecan hydrochloride 4 mg/4mL 45963-0615-56 Actavis 1 vial — AP FDA listed —
Topotecan Hydrochloride 4 mg/4mL 63323-0762-94 Fresenius 1 vial — AP Discontinued —
About this product: this is a generic version of the medicine. FDA equivalence ratings are shown when available, and other versions are listed above, least expensive first.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

⏳ Availability & generic status

🏛️
2013
On the market since
Jul 2013
📍
2026
Currently FDA-listed
13 years listed
🔓
·
Generic on the market
this product is a generic
✅This is a generic drug

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?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

🗺️ Medicaid utilization & spend

📍 This exact package only: Medicaid data is reported per full 11-digit NDC — labeler, product and pack size — so every number here is for 16729-0151-31, not the drug overall. Other pack sizes report separately.
💊 Pharmacy benefit only: These are Medicaid outpatient pharmacy claims, billed by NDC. They exclude the medical benefit — clinic- or hospital-administered drugs billed under HCPCS J-codes — so drugs used mostly that way (e.g. Avastin, Lucentis, Keytruda) can look low or missing here. That’s expected, not an error.
📅 Q1 2025 – Q4 2025 · 4 quarters of data
ⓘ The newest quarter is usually incomplete when first published; states restate recent quarters in later CMS releases, so the latest figures typically revise upward. State coverage-policy changes can also shift quarter-to-quarter totals.
Prescriptions last 4 qtrs
178
Units reimbursed last 4 qtrs
121
Gross reimbursed last 4 qtrs
$23.6K
Avg / prescription
$132.31
Avg / unit
$194.63
Latest quarter Q4 2025
0Rx
Fee-for-service vs managed care ⓘ
100% MCO
Fee-for-service · 0 Rx Managed care · 178 Rx
State Medicaid map
Alaska: no data reported AK Maine: no data reported ME Washington: no data reported WA Idaho: no data reported ID Montana: no data reported MT North Dakota: no data reported ND Minnesota: no data reported MN Wisconsin: no data reported WI Michigan: no data reported MI New York: 16 units · 0.1 per 100k residents NY Vermont: no data reported VT New Hampshire: no data reported NH Oregon: no data reported OR Nevada: no data reported NV Wyoming: no data reported WY South Dakota: no data reported SD Iowa: no data reported IA Illinois: no data reported IL Indiana: no data reported IN Ohio: no data reported OH Pennsylvania: no data reported PA New Jersey: no data reported NJ Massachusetts: no data reported MA California: no data reported CA Utah: no data reported UT Colorado: no data reported CO Nebraska: no data reported NE Missouri: no data reported MO Kentucky: 83 units · 1.8 per 100k residents KY West Virginia: no data reported WV Virginia: no data reported VA Maryland: no data reported MD Connecticut: no data reported CT Rhode Island: no data reported RI Arizona: no data reported AZ New Mexico: no data reported NM Kansas: no data reported KS Arkansas: no data reported AR Tennessee: no data reported TN North Carolina: no data reported NC South Carolina: no data reported SC Delaware: no data reported DE Oklahoma: no data reported OK Louisiana: no data reported LA Mississippi: no data reported MS Alabama: no data reported AL Georgia: no data reported GA D.C.: no data reported DC Hawaii: 22 units · 1.5 per 100k residents HI Texas: no data reported TX Florida: no data reported FL
Units reimbursed · per 100k residents
0.11.8
gray = no data reported ⓘ
Colors are per 100,000 residents, so big states don’t automatically dominate. Tap or hover a state for its actual totals.
Tap or hover a state
…for its Medicaid breakdown
🏆 Top states by units · per 100k residents
1 Kentucky 1.8 /100k
2 Hawaii 1.5 /100k
3 New York 0.1 /100k
National units — by quarter
💵 About the dollar figures: “reimbursed” is what Medicaid paid pharmacies before confidential manufacturer rebates, so the program’s real net cost is lower than these numbers. Fee-for-service and managed-care claims are combined unless split above. Source: CMS State Drug Utilization Data; per-100k rates use 2023 Census population estimates.

🔬 Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Topotecan hydrochloride — the ingredient across all brands.

Top reported reactions

Death384
Febrile Neutropenia257
Anaemia235
White Blood Cell Count Decreased204
Pyrexia202
Nausea188
Platelet Count Decreased184

Age at onset

Neonate1
Infant6
Child32
Adolescent7
Adult46
Elderly11

Reporter sex

2,410 reports
Male · 41%
Female · 57%
Unknown · 1%

Serious outcomes

Hospitalization921
Death720
Life-threatening151
Disabling58
Reports over time (by year) — tap or hover for the count & year
2019 2021 2023 2026 160 0
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

📦 Packaging — all sizes for this product

Package NDCDescription Marketing startStatus
16729-0151-31 You're viewing this 1 VIAL in 1 PACKAGE (16729-151-31) / 4 mL in 1 VIAL 2013-07-23 Active

🧭 About this NDC listing & data coverage

Finished prescription product
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos ✓ Available
Inactive ingredients (structured) ✓ Available
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data ✓ Available
HCPCS J-code billing crosswalk ✓ Available
Medicaid utilization (CMS SDUD) ✓ Available
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The FDA registers it as 16729-151-31, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 16729-0151-31, written without dashes as 16729015131. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 16729-0151-31, the first segment (16729) is the labeler code FDA assigned to Accord Healthcare, Inc.; the middle segment (0151) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (31) identifies this exact package size and type. Together they name one specific package of one specific product.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by Accord Healthcare, Inc.. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Accord Healthcare, Inc. is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
Does this product have a billing J-code?
Yes — this NDC cross-references HCPCS code J9351 for medical-claim billing (typically used when a product is administered in a clinical setting rather than dispensed at a retail pharmacy). See the Billing section on this page.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.

📄 Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🚨 Boxed Warning 🎯 Indications and Usage ⏱️ Dosage and Administration 💊 Dosage Forms and Strengths ⛔ Contraindications ⚠️ Warnings and Cautions 🤒 Adverse Reactions 👥 Use in Specific Populations 🤰 Pregnancy 🧒 Pediatric Use 🧓 Geriatric Use 🆘 Overdosage 🧬 Clinical Pharmacology 🧬 Mechanism of Action 📦 How Supplied / Storage and Handling 📋 Description 💬 Information for Patients
🚨 Boxed Warning 106 words ▾

WARNING: MYELOSUPPRESSION Topotecan hydrochloride for injection can cause severe myelosuppression. Administer first cycle only to patients with baseline neutrophil counts of greater than or equal to 1,500/mm 3 and platelet counts greater than or equal to 100,000/mm 3 . Monitor blood cell counts [see Warnings and Precautions ( 5.1 )] .

WARNING: MYELOSUPPRESSION See full prescribing information for complete boxed warning. Topotecan Hydrochloride for Injection can cause severe myelosuppression. Administer first cycle only to patients with baseline neutrophil counts greater than or equal to 1,500/mm 3 and platelet counts greater than or equal to 100,000/mm 3 .

Monitor blood cell counts ( 2.4 , 5.1 ).

🎯 Indications and Usage 191 words ▾

1 INDICATIONS AND USAGE Topotecan Hydrochloride for injection is a topoisomerase inhibitor indicated for treatment of: Patients with metastatic ovarian cancer after disease progression on or after initial or subsequent chemotherapy, as a single agent ( 1.1 ) Patients with small cell lung cancer (SCLC) platinum-sensitive disease who progressed at least 60 days after initiation of first-line chemotherapy, as a single agent ( 1.2 ) Patients with Stage IV-B, recurrent, or persistent cervical cancer which is not amenable to curative treatment, in combination with cisplatin ( 1.3 )

1.1Ovarian Cancer Topotecan hydrochloride for injection, as a single agent, is indicated for the treatment of patients with metastatic ovarian cancer after disease progression on or after initial or subsequent chemotherapy.

1.2Small Cell Lung Cancer Topotecan hydrochloride for injection, as a single agent, is indicated for the treatment of patients with small cell lung cancer (SCLC) with platinum-sensitive disease who progressed at least 60 days after initiation of first-line chemotherapy.

1.3Cervical Cancer Topotecan hydrochloride for injection, in combination with cisplatin, is indicated for the treatment of patients with Stage IV-B, recurrent, or persistent cervical cancer not amenable to curative treatment.

⏱️ Dosage and Administration ~3 min read ▾

2 DOSAGE AND ADMINISTRATION Ovarian Cancer and Small Cell Lung Cancer: 1.5 mg/m 2 by intravenous infusion over 30 minutes daily for 5 consecutive days, starting on Day 1 of a 21-day cycle ( 2.1 , 2.2 ) Cervical Cancer: 0.75 mg/m 2 by intravenous infusion over 30 minutes on Days 1, 2, and 3, with cisplatin 50 mg/m 2 on Day 1, of a 21-day cycle ( 2.3 ) Renal Impairment: Reduce dose if creatinine clearance (CLcr) 20 to 39 mL/min ( 2.6 )

2.1Important Safety Information Verify dosage using body surface area. Do not exceed a single dose of 4 mg intravenously.

2.2Recommended Dosage for Ovarian Cancer The recommended dosage of topotecan hydrochloride for injection is 1.5 mg/m 2 by intravenous infusion over 30 minutes daily for 5 consecutive days, starting on Day 1 of a 21-day cycle until disease progression or unacceptable toxicity.

2.3Recommended Dosage for Small Cell Lung Cancer (SCLC) The recommended dosage of topotecan hydrochloride for injection is 1.5 mg/m 2 by intravenous infusion over 30 minutes daily for 5 consecutive days, starting on Day 1 of a 21-day cycle.

2.4Recommended Dosage for Cervical Cancer The recommended dosage of topotecan hydrochloride for injection is 0.75 mg/m 2 by intravenous infusion over 30 minutes daily on Days 1, 2, and 3, in combination with cisplatin 50 mg/m 2 on Day 1, of a 21-day cycle.

2.5Dosage Modifications for Adverse Reactions Hematologic Do not administer subsequent cycles of topotecan hydrochloride for injection until neutrophils recover to greater than 1,000/mm 3 , platelets recover to greater than 100,000/mm 3 , and hemoglobin levels recover to greater than or equal to 9 g/dL (with transfusion if necessary). For topotecan hydrochloride for injection as a single agent, reduce the dose to 1.25 mg/m 2 /day for: neutrophil counts of less than 500/mm 3 or administer granulocyte-colony stimulating factor (G-CSF) starting no sooner than 24 hours following the last dose platelet counts less than 25,000/mm 3 during previous cycle For topotecan hydrochloride for injection in combination with cisplatin, reduce the dose to 0.6 mg/m 2 /day (and further to 0.45 mg/m 2 if necessary) for: febrile neutropenia (defined as neutrophil counts less than 1,000/mm 3 with temperature of greater than or equal to 38.0°C (100.4°F) or administer G-CSF starting no sooner than 24 hours following the last dose platelet counts less than 25,000/mm 3 during previous cycle

2.6Dosage Modification for Renal Impairment For topotecan hydrochloride for injection as a single agent, reduce the dose to 0.75 mg/m2/day for patients with creatinine clearance (CLcr) of 20 to 39 mL/min (calculated with the Cockcroft-Gault method using ideal body weight) [see Clinical Pharmacology ( 12.3 )] .

2.7Preparation and Intravenous Administration Visually inspect for particulate matter and discoloration prior to administration, whenever solution and container permit. Preparation Reconstitute each 4 mg vial of topotecan hydrochloride for injection with 4 mL Sterile Water for Injection, USP. Dilute the appropriate volume of the reconstituted solution in either 0.9% Sodium Chloride Intravenous Infusion, USP or 5% Dextrose in Water Injection, USP.

Stability Because the vials contain no preservative, use contents immediately after reconstitution. Discard any unused portion. Store reconstituted product diluted for infusion at approximately 20°C to 25°C (68°F to 77°F) protected from light for no more than 24 hours.

Discard after 24 hours. Topotecan hydrochloride for injection is a cytotoxic drug. Follow applicable handling and disposal procedures.

1

💊 Dosage Forms and Strengths 40 words ▾

3 DOSAGE FORMS AND STRENGTHS For injection: 4 mg (free base) of topotecan as a light yellow to greenish lyophilized powder in single-dose vial for reconstitution. For injection: 4 mg (free base) lyophilized powder in single-dose vial ( 3 )

⛔ Contraindications 42 words ▾

4 CONTRAINDICATIONS Topotecan Hydrochloride for Injection is contraindicated in patients who have a history of severe hypersensitivity reactions to topotecan. Reactions have included anaphylactoid reactions [see Adverse Reactions ( 6.2 )] . History of severe hypersensitivity reactions to topotecan ( 4 )

⚠️ Warnings and Cautions ~2 min read ▾

5 WARNINGS AND PRECAUTIONS Interstitial Lung Disease (ILD): Fatal cases have occurred. Permanently discontinue if ILD confirmed. ( 5.2 ) Extravasation and Tissue Injury: Severe cases have occurred. If extravasation occurs, immediately stop administration and institute recommended management procedures. ( 5.3 ) Embryo-Fetal Toxicity: Can cause fetal harm. Advise patients of potential risk to the fetus and to use effectives contraception. ( 5.4 , 8.1 , 8.3 )

5.1Myelosuppression Topotecan hydrochloride for injection can cause severe myelosuppression. Single Agent Grade 4 neutropenia occurred in 78% of 879 patients, with a median duration of 7 days and was most common during Cycle 1 (58% of patients). Grade 4 neutropenia associated with infection occurred in 13% and febrile neutropenia occurred in 5%.

Sepsis occurred in 4% of patients and was fatal in 1%. Grade 4 thrombocytopenia occurred in 27%, with a median duration of 5 days. Grade 3 or 4 anemia occurred in 37% of patients.

Combination with Cisplatin Grade 4 neutropenia occurred in 48% and Grade 4 thrombocytopenia occurred in 7% of 147 patients. Grade 3 or 4 anemia occurred in 40% of patients. Topotecan can cause fatal typhlitis (neutropenic enterocolitis).

Consider the possibility of typhlitis in patients presenting with fever, neutropenia, and abdominal pain. Administer the first cycle of topotecan hydrochloride for injection only to patients with a baseline neutrophil count of greater than or equal to 1,500/mm 3 and a platelet count greater than or equal to 100,000/mm 3 . Monitor blood counts frequently during treatment.

Withhold and reduce dose of topotecan hydrochloride for injection based on neutrophil counts, platelet counts and hemoglobin levels [see Dosage and Administration ( 2.5 )] .

5.2Interstitial Lung Disease Interstitial lung disease (ILD), including fatalities, can occur with topotecan hydrochloride for injection. Underlying risk factors include history of ILD, pulmonary fibrosis, lung cancer, thoracic radiation, and use of pneumotoxic drugs or colony stimulating factors. Monitor for pulmonary symptoms indicative of ILD. Permanently discontinue topotecan hydrochloride for injection if ILD is confirmed.

5.3Extravasation and Tissue Injury Extravasation, including severe cases, can occur with topotecan hydrochloride for injection. If signs or symptoms of extravasation occur, immediately stop administration of topotecan hydrochloride for injection and institute recommended management procedures [see Adverse Reactions ( 6.1 )] .

5.4Embryo-Fetal Toxicity Based on animal data, topotecan hydrochloride for injection can cause fetal harm when administered to a pregnant woman. Topotecan caused embryolethality, fetotoxicity, and teratogenicity in rats and rabbits when administered during organogenesis. Advise women of the potential risk to a fetus.

Advise females of reproductive potential to use effective contraception during treatment and for 6 months after the last dose of topotecan hydrochloride for injection. Advise males with a female partner of reproductive potential to use effective contraception during treatment with topotecan hydrochloride for injection and for 3 months after the last dose [see Use in Specific Populations ( 8.1 , 8.3 ), Nonclinical Toxicology ( 13.1 )] .

🤒 Adverse Reactions ~3 min read ▾

6 ADVERSE REACTIONS The following serious adverse reactions are described elsewhere in the labeling: Myelosuppression [see Warnings and Precautions ( 5.1 )] Interstitial Lung Disease (ILD) [see Warnings and Precautions ( 5.2 )] Extravasation and Tissue Injury [see Warnings and Precautions ( 5.3 )] Ovarian Cancer The most common Grade 3 or 4 hematologic adverse reactions (incidence > 5%) were neutropenia, anemia, thrombocytopenia, and febrile neutropenia. ( 6.1 ) The most common (incidence > 5%) non-hematologic adverse reactions (all Grades) were nausea, vomiting, fatigue, diarrhea, and dyspnea.

( 6.1 ) SCLC The most common Grade 3 or 4 hematologic adverse reactions were (incidence > 5%) neutropenia, anemia, thrombocytopenia, and febrile neutropenia. ( 6.1 ) The most common (incidence > 5%) non-hematologic adverse reactions (all Grades) were asthenia, dyspnea, nausea, pneumonia, abdominal pain, and fatigue. ( 6.1 ) Cervical Cancer The most common Grade 3 or 4 hematologic adverse reactions were (incidence > 5%) neutropenia, anemia, and thrombocytopenia.

( 6.1 ) The most common (incidence > 25% and ≥ 2% higher than cisplatin alone) non-hematologic adverse reactions were pain, vomiting, and infection/febrile neutropenia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Accord Healthcare Inc. at 1-866-941-7875 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .

6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in practice. The data in Warnings and Precautions reflect exposure to topotecan hydrochloride for injection from eight trials in which 879 patients with ovarian cancer or small cell lung cancer (SCLC) received topotecan hydrochloride for injection 1.5 mg/m 2 by intravenous infusion daily for 5 consecutive days, starting on Day 1 of a 21 day cycle and from one trial (Study GOG 0179) in which 147 patients with cervical cancer received topotecan hydrochloride for injection 0.75 mg/m 2 by intravenous infusion daily on Days 1, 2, and 3, with cisplatin 50 mg/m2 by intravenous infusion on Day 1, of a 21-day cycle.

Ovarian Cancer The safety of topotecan hydrochloride for injection was evaluated in a randomized trial conducted in 226 patients with metastatic ovarian cancer (Study 039) [see Clinical Studies ( 14.1 )] . Table 1 shows the incidence of Grade 3 and 4 hematologic and non-hematologic adverse reactions that occurred in patients receiving topotecan hydrochloride for injection. Table 1.

Adverse Reactions Occurring in Greater than or Equal to 5% of Patients With Ovarian Cancer in Study 039 a Death related to sepsis occurred in 2% of patients receiving topotecan hydrochloride for injection and 0% of patients receiving paclitaxel. b Pain includes body pain, skeletal pain, and back pain. Adverse Reactions Topotecan Hydrochloride for Injection (n = 112) Paclitaxel (n = 114) Grade 3-4 (%) Grade 3-4 (%) Hematologic Grade 4 neutropenia (< 500/mm 3 ) Grade 3 or 4 anemia (Hgb < 8 g/dL) Grade 4 thrombocytopenia (< 25,000/mm 3 ) Febrile neutropenia 80 41 27 23 21 6 3 4 Non-Hematologic Infections Sepsis a 5 2 Respiratory, thoracic, and mediastinal Dyspnea 6 5 Gastrointestinal Vomiting 10 3 Nausea 10 2 Diarrhea 6 1 Abdominal pain 5 4 Intestinal obstruction 5 4 Constipation 5 0 General and administrative site conditions Fatigue 7 6 Pain b 5 7 Asthenia 5 3 Small Cell Lung Cancer (SCLC) The safety of topotecan hydrochloride for injection was evaluated in randomized, comparative trial in patients with recurrent or progressive SCLC (Study 090) [see Clinical Studies ( 14.2 )] .

Table 2 shows the Grade 3 or 4 hematologic and non-hematologic adverse reactions in patients with SCLC. Table 2. Adverse Reactions Occurring in Greater than or Equal to 5% of Patients With Small Cell Lung Cancer in Study 090 a Death relate…

👥 Use in Specific Populations ~3 min read ▾

8 USE IN SPECIFIC POPULATIONS Lactation: Advise not to breastfeed. ( 8.2 )

8.1Pregnancy Risk Summary Based on animal data and its mechanism of action, topotecan hydrochloride for injection can cause fetal harm when administered to a pregnant woman. There are no available clinical data on the use of topotecan hydrochloride for injection in pregnancy. Topotecan caused embryolethality, fetotoxicity, and teratogenicity in rats and rabbits when administered during organogenesis at doses similar to the clinical dose (see Data ).

Advise pregnant women of the potential risk to a fetus. In the U.S. general population, the background risk of major birth defects is 2% to 4% and of miscarriage is 15% to 20% of clinically recognized pregnancies. Data Animal Data: In rabbits, an intravenous dose of 0.10 mg/kg/day [about equal to the 1.5 mg/m 2 clinical dose based on body surface area (BSA)] given on Days 6 through 20 of gestation caused maternal toxicity, embryolethality and reduced fetal body weight.

In the rat, an intravenous dose of 0.23 mg/kg/day (about equal to the 1.5 mg/m 2 clinical dose based on BSA) given for 14 days before mating through gestation Day 6 caused fetal resorption, microphthalmia, pre-implant loss, and mild maternal toxicity. Administration of an intravenous dose of 0.10 mg/kg/day (about half the 1.5 mg/m 2 clinical dose based on BSA) given to rats on Days 6 through 17 of gestation caused an increase in post-implantation mortality. This dose also caused an increase in total fetal malformations.

The most frequent malformations were of the eye (microphthalmia, anophthalmia, rosette formation of the retina, coloboma of the retina, ectopic orbit), brain (dilated lateral and third ventricles), skull, and vertebrae.

8.2Lactation Risk Summary There are no data on the presence of topotecan or its metabolites in human milk or their effects on the breastfed infant or on milk production. Lactating rats excrete high concentrations of topotecan in milk (see Data ) . Because of the potential for serious adverse reactions in breastfed infants, advise women not to breastfeed during treatment with topotecan hydrochloride for injection and for 1 week after the last dose.

Data Following intravenous administration of topotecan to lactating rats at a dose of 4.72 mg/m 2 (about twice the 1.5 mg/m 2 clinical dose based on BSA) to lactating rats, topotecan was excreted into milk at concentrations up to 48-fold higher than those in plasma.

8.3Females and Males of Reproductive Potential Pregnancy Testing Verify pregnancy status of females of reproductive potential prior to initiating topotecan hydrochloride for injection [see Use in Specific Populations ( 8.1 )] . Contraception topotecan hydrochloride for injection can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations ( 8.1 )] . Females Advise females of reproductive potential to use effective contraception during treatment with topotecan hydrochloride for injection and for 6 months after the last dose.

Males Topotecan Hydrochloride for Injection may damage spermatozoa, resulting in possible genetic and fetal abnormalities. Advise males with a female partner of reproductive potential to use effective contraception during treatment with topotecan hydrochloride for injection and for 3 months after the last dose [see Nonclinical Toxicology ( 13.1 )] . Infertility Females Topotecan Hydrochloride for Injection can have both acute and long-term effects on fertility [see Nonclinical Toxicology ( 13.1 )] .

Males Effects on spermatogenesis occurred in animals administered topotecan [see Nonclinical Toxicology ( 13.1 )] .

8.4Pediatric Use Safety and effectiveness in pediatric patients have not been established.

8.5Geriatric Use Of the 879 patients with metastatic ovarian cancer or small cell lung cancer in clinical trials of topotecan hydrochloride for injection, 32% were aged 65 years and older, while 3.8% were aged 75 years and older. Of the 140 patients with…

🤰 Pregnancy ~1 min read ▾

8.1Pregnancy Risk Summary Based on animal data and its mechanism of action, topotecan hydrochloride for injection can cause fetal harm when administered to a pregnant woman. There are no available clinical data on the use of topotecan hydrochloride for injection in pregnancy. Topotecan caused embryolethality, fetotoxicity, and teratogenicity in rats and rabbits when administered during organogenesis at doses similar to the clinical dose (see Data ).

Advise pregnant women of the potential risk to a fetus. In the U.S. general population, the background risk of major birth defects is 2% to 4% and of miscarriage is 15% to 20% of clinically recognized pregnancies. Data Animal Data: In rabbits, an intravenous dose of 0.10 mg/kg/day [about equal to the 1.5 mg/m 2 clinical dose based on body surface area (BSA)] given on Days 6 through 20 of gestation caused maternal toxicity, embryolethality and reduced fetal body weight.

In the rat, an intravenous dose of 0.23 mg/kg/day (about equal to the 1.5 mg/m 2 clinical dose based on BSA) given for 14 days before mating through gestation Day 6 caused fetal resorption, microphthalmia, pre-implant loss, and mild maternal toxicity. Administration of an intravenous dose of 0.10 mg/kg/day (about half the 1.5 mg/m 2 clinical dose based on BSA) given to rats on Days 6 through 17 of gestation caused an increase in post-implantation mortality. This dose also caused an increase in total fetal malformations.

The most frequent malformations were of the eye (microphthalmia, anophthalmia, rosette formation of the retina, coloboma of the retina, ectopic orbit), brain (dilated lateral and third ventricles), skull, and vertebrae.

🧒 Pediatric Use 13 words ▾

8.4Pediatric Use Safety and effectiveness in pediatric patients have not been established.

🧓 Geriatric Use 119 words ▾

8.5Geriatric Use Of the 879 patients with metastatic ovarian cancer or small cell lung cancer in clinical trials of topotecan hydrochloride for injection, 32% were aged 65 years and older, while 3.8% were aged 75 years and older. Of the 140 patients with Stage IV-B, relapsed, or refractory cervical cancer in clinical trials of topotecan hydrochloride for injection who received topotecan hydrochloride for injection with cisplatin in the randomized clinical trial, 6% were aged 65 years and older, while 3% were aged 75 years and older.

No overall differences in effectiveness or safety were observed between these patients and younger patients and other reported clinical experience has not identified differences in responses between the elderly and younger patients.

🆘 Overdosage 54 words ▾

10 OVERDOSAGE Overdoses (up to 10-fold of the recommended dose) have occurred in patients receiving intravenous topotecan. The primary complication of overdosage is myelosuppression. Elevated hepatic enzymes, mucositis, gastrointestinal toxicity, and skin toxicity have occurred with overdosages. If an overdose is suspected, monitor the patient closely for myelosuppression and institute supportive-care measures as appropriate.

🧬 Clinical Pharmacology ~2 min read ▾

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Topoisomerase I relieves torsional strain in DNA by inducing reversible single-strand breaks. Topotecan binds to the topoisomerase I-DNA complex and prevents re-ligation of these single-strand breaks. The cytotoxicity of topotecan is thought to be due to double-strand DNA damage produced during DNA synthesis, when replication enzymes interact with the ternary complex formed by topotecan, topoisomerase I, and DNA.

Mammalian cells cannot efficiently repair these double-strand breaks.

12.3Pharmacokinetics Following administration of topotecan hydrochloride for injection at doses of 0.5 to 1.5 mg/m 2 (0.1 to 0.3 times the recommended single agent dose) administered as a 30-minute infusion, area under the curve (AUC) increases proportionally with dose. Distribution Protein binding of topotecan is approximately 35%. Elimination The terminal half-life of topotecan is 2 to 3 hours following intravenous administration.

Metabolism Topotecan undergoes a reversible pH-dependent hydrolysis of its pharmacologically active lactone moiety. At pH less than or equal to 4, the lactone is exclusively present, whereas the ring-opened hydroxy-acid form predominates at physiologic pH. Topotecan is metabolized to an N-demethylated metabolite in vitro.

The mean metabolite: parent AUC ratio was about 3% for total topotecan and topotecan lactone following intravenous administration. Excretion The overall recovery of total topotecan and its N-desmethyl metabolite in urine and feces over 9 days averaged 73% ± 2% following an intravenous dose. Mean values of 51% ± 3% as total topotecan and 3% ± 1% as N-desmethyl topotecan were excreted in the urine.

Fecal elimination of total topotecan accounted for 18% ± 4% while fecal elimination of N-desmethyl topotecan was 1.7% ± 0.6%. An O-glucuronidation metabolite of topotecan and N desmethyl topotecan has been identified in the urine. Specific Populations No clinically significant differences in the pharmacokinetics of topotecan were observed based on age, sex, or hepatic impairment following intravenous administration.

Patients with Renal Impairment Compared to patients with CLcr (calculated by the Cockcroft-Gault method using ideal body weight) greater than 60 mL/min, plasma clearance of topotecan lactone decreased by 33% in patients with CLcr 40-60 mL/min and decreased 65% in patients with CLcr 20-39 mL/min. The effect on topotecan pharmacokinetics in patients with CLcr less than 20 mL/min is unknown [see Dosage and Administration ( 2.6 )] . Drug Interaction Studies Clinical Studies No clinically significant changes in topotecan pharmacokinetics were observed when coadministered cisplatin.

No clinically significant changes in the pharmacokinetics of free platinum were observed in patients coadministered cisplatin with topotecan. In Vitro Studies Topotecan does not inhibit CYP1A2, CYP2A6, CYP2C8/9, CYP2C19, CYP2D6, CYP2E, CYP3A, or CYP4A or dihydropyrimidine dehydrogenase.

🧬 Mechanism of Action 70 words ▾

12.1Mechanism of Action Topoisomerase I relieves torsional strain in DNA by inducing reversible single-strand breaks. Topotecan binds to the topoisomerase I-DNA complex and prevents re-ligation of these single-strand breaks. The cytotoxicity of topotecan is thought to be due to double-strand DNA damage produced during DNA synthesis, when replication enzymes interact with the ternary complex formed by topotecan, topoisomerase I, and DNA.

Mammalian cells cannot efficiently repair these double-strand breaks.

📦 How Supplied / Storage and Handling 64 words ▾

16 HOW SUPPLIED/STORAGE AND HANDLING Topotecan hydrochloride for injection is supplied as a sterile, lyophilized, yellow powder for reconstitution in 4-mg (free base) single-dose vials. NDC 16729-151-31 (package of 1) Store between 20°C and 25°C (68°F and 77°F) [see USP Controlled Room Temperature] in original carton. Protect from light. Topotecan Hydrochloride for injection is a cytotoxic drug. Follow applicable handling and disposal procedures. 1

📋 Description 142 words ▾

11 DESCRIPTION Topotecan is a topoisomerase inhibitor. The chemical name for topotecan hydrochloride is ( S )-10-[(dimethylamino)methyl]-4-ethyl-4,9-dihydroxy-1 H -pyrano[3’,4’:6,7] indolizino [1,2- b ]quinoline-3,14-(4 H ,12 H )-dione monohydrochloride. The molecular formula is C 23 H 23 N 3 O 5 •HCl and the molecular weight is 457.9 g/mol..

It is soluble in water and melts with decomposition at 213ºC to 218ºC. Topotecan hydrochloride has the following structural formula: Topotecan hydrochloride for injection, for intravenous use is supplied as a sterile, lyophilized, yellow powder available in single-dose vials. Each 4 mg vial contains 4 mg topotecan hydrochloride as free base.

The reconstituted solution gives a light yellow color. Inactive ingredients are mannitol, 48 mg, and tartaric acid, 20 mg. Hydrochloric acid and sodium hydroxide may be used to adjust the pH.

The solution pH ranges from 2.5 to 3.5. topotecan hydrochloride chemical structure

💬 Information for Patients ~2 min read ▾

17 PATIENT COUNSELING INFORMATION Myelosuppression Inform patients that topotecan hydrochloride for injection decreases blood cell counts such as white blood cells, platelets, and red blood cells. Advise patients to notify their healthcare provider promptly for fever, other signs of infection, or bleeding [see Warnings and Precautions ( 5.1 )] . Interstitial Lung Disease (ILD) Inform patients of the risks of severe ILD.

Advise patients to contact their healthcare provider immediately to report new or worsening respiratory symptoms [see Warnings and Precautions ( 5.2 )] . Embryo-Fetal Toxicity Advise females of reproductive potential and males with female partners of reproductive potential of the potential risk to a fetus. Advise women to contact their healthcare provider if they become pregnant, or if pregnancy is suspected during treatment with topotecan hydrochloride for injection [see Warnings and Precautions ( 5.4 ), Use in Specific Populations ( 8.1 , 8.3 )] .

Advise females of reproductive potential to use effective contraception during treatment and for 6 months after the last dose of topotecan hydrochloride for injection [see Use in Specific Populations ( 8.1 , 8.3 )] . Advise males with a female partner of reproductive potential to use effective contraception during treatment and for 3 months after the last dose of topotecan hydrochloride for injection [see Use in Specific Populations ( 8.1 , 8.3 ), Nonclinical Toxicology ( 13.1 )] . Lactation Advise women to discontinue breastfeeding during treatment and for 1 week after the last dose of topotecan hydrochloride for injection [see Use in Specific Populations ( 8.2 )] .

Infertility Advise male and female patients of the potential risk for impaired fertility [see Use in Specific Populations ( 8.3 ), Nonclinical Toxicology ( 13.1 )] . Asthenia and Fatigue Advise patients that topotecan hydrochloride for injection may cause asthenia or fatigue. These symptoms may impair the ability to safely drive or operate machinery.

Manufactured For: Accord Healthcare, Inc., 8041 Arco Corporate Drive, Suite 200, Raleigh, NC 27617, USA. Manufactured By: Intas Pharmaceuticals Limited, Plot No. : 457, 458, Village – Matoda, Bavla Road, Ta. - Sanand, Dist. - Ahmedabad – 382 210, India. 10 4086 1 6027351 Issued December, 2023

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗
← 16729-0150-01 · Accord 16729-0156-10 · Accord →
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