HomeNDC LookupIngredientsDatopotamab Deruxtecan › 65597-0801-01
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DATROWAY Datopotamab Deruxtecan 100 mg/5mL Injection, Powder, Lyophilized, For Solution

by Daiichi Sankyo Inc. · 1 VIAL, SINGLE-DOSE in 1 CARTON (65597-801-01) / 5 mL in 1 VIAL, SINGLE-DOSE
NDC 65597-0801-01
🏷️ FDA NDC (as labeled) 65597-801-01 billing pads the product segment with a zero
Rx only Brand 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 →

🆔 Identity & classification

FDA NDC (as labeled) 65597-801-01
Product NDC 65597-801
11-digit billing NDC 65597080101
NCPDP billing unit EA — each (per item)
RxCUI 2703040, 2703046
UNII GD2OWY1DTK
Application # BLA761394
SPL Set ID 2950227c-6230-4ca4-a135-46e44d9424a0
DEA schedule Non-controlled
Marketing category BLA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2025-01-17
Route INTRAVENOUS
Dosage form INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION
Substance DATOPOTAMAB DERUXTECAN
GPI-14 21551020202120
GCN Seq No 087075
GCN 56913
HICL code 050179
Ingredient (HICL) Datopotamab Deruxtecan-Dlnk
HIC1 code V
Therapeutic class — broad (HIC1) Neoplasms
HIC2 code V1
Therapeutic class — intermediate (HIC2) Antineoplastic Drugs
HIC3 code V1K
Therapeutic class — specific (HIC3) Antineoplastics Antibody/Antibody-Drug Complexes
AHFS code 10:00.00.00
AHFS class Antineoplastic Agents
FDB label name DATROWAY 100 MG VIAL
FDB brand name Datroway
Legend status F — Federal legend — prescription drug or device
Biologic (Purple Book) 351(a)
Why two NDCs? The FDA registers this code as 65597-801-01 — 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 → 65597-0801-01. 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 Other monoclonal antibodies and antibody drug conjugates class.

Drug family (ATC) Other monoclonal antibodies and antibody drug conjugates
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

LabelerDaiichi Sankyo Inc.
FDA applicationBLA761394 (BLA)
Labeler code65597
First marketedJan 2025
Product typeHuman Prescription Drug
Portfolio8 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 DATROWAY 100 MG VIAL Ingredient Datopotamab Deruxtecan-Dlnk
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 4QD397987E
    An amino acid used as a buffer and stabilizer in medications. It helps maintain the pH balance and protects the active drug from breaking down during storage and use.
  • UNII X573657P6P
    Histidine monohydrochloride monohydrate is an amino acid salt used as a buffer in medicines. It helps maintain the proper acidity level of liquid formulations to keep the drug stable and effective.
  • 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.
  • UNII C151H8M554
    A natural sugar derived from sugar cane or sugar beets. It's used as a sweetener, filler, and binder to improve taste, add bulk, and help hold tablet or capsule ingredients together.

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 DailyMedingredient 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 $4,784.80 $23,924.00 / 5 ml
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
Medicare Part B allowsASP · J9011 $52.499 / J9011 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)65597-801-01
11-digit billing NDC65597-0801-01
Format5-3-2 as registered → padded to 5-4-2 for billing (zero added to the product segment)
HCPCS J-codeJ9011
DescriptorINJECTION, DATOPOTAMAB DERUXTECAN-DLNK, 1 MG
Billing units / pkg100 units
Crosswalk sourcePDAC NDC-HCPCS crosswalk (DME MAC / DMEPOS)
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
Datroway 100 mg/5mLthis 65597-0801-01 Daiichi 1 vial FDA listed
About this product: this is a biologic. Biologics don't have small-molecule generics — competition comes from FDA-licensed biosimilars (shown above), not generics.
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 & biosimilar status

🏛️
2025
First FDA approval
Jan 2025
📍
2026
Currently FDA-listed
1 year listed
🛡️
2037
Latest patent/protection listed
not a guaranteed launch date
🧬Biologic — competition comes from biosimilars

Biologics have no small-molecule generics; biosimilar competition is tracked in the FDA Purple Book.

🛡️ Latest patent/protection date listed: FDA patent/protection data lists protections through Jan 2037. This may affect when biosimilars become widely available, but it is not a guaranteed launch date.
📅 FDA approved Jan 17, 2025 ⏳ ~10.4 yr to latest listed protection

Why the date isn’t exact: Biosimilar timing can change because patents may be challenged, settled, licensed, added or removed, and litigation can move the real date earlier or later.

FDA Purple Book — biosimilars & interchangeables
🔒 No FDA-licensed biosimilars or interchangeable biosimilars are listed yet for this biologic. It currently has no biosimilar competition in the FDA Purple Book.
Source: FDA Purple Book (purplebooksearch.fda.gov), matched on the reference product’s active ingredient.
Patents & exclusivity — FDA Purple Book
Exclusivity RefProduct
2025 2027 2029 2031 2033 2035 2037
Today
LOE
Biologic patent Exclusivity
🏛️Reference-product exclusivity
A flat 12 years of FDA market protection from first licensure. No biosimilar can be licensed before it ends — regardless of patents.
🧪Listed biologic patents
Patents the reference maker lists covering the molecule, formulation, or manufacturing. A biosimilar generally can’t launch until these resolve.
🔁Interchangeability
An interchangeable biosimilar may be substituted at the pharmacy (state laws vary). The first one can earn its own exclusivity period.
🛈 What do these terms mean?
Biologic patent
A patent the reference product’s maker has publicly listed. A biosimilar generally can’t launch until these expire — unless they’re invalidated or resolved in a settlement.
Reference-product exclusivity
A flat 12 years of FDA market protection from the biologic’s first licensure (the BPCIA). No biosimilar can be licensed before it ends, regardless of patents.
Interchangeable exclusivity
The first interchangeable biosimilar can earn a period as the only interchangeable version (pharmacists can substitute it without the prescriber).
Earliest biosimilar (LOE)
The latest of all the dates above — the soonest a biosimilar can realistically reach the market. Litigation and settlements can move it earlier.

Biologics have no small-molecule “generics” — competition comes from FDA-licensed biosimilars, tracked in the FDA Purple Book.

FDA exclusivity
CodeWhat it grantsExpires
RefProductReference-product exclusivity (12-year, BPCIA) — no biosimilar can be licensed before this dateJan 17, 2037
Common questions
Is there a biosimilar for DATROWAY 100 MG VIAL?
No FDA-licensed biosimilar is currently listed for this biologic in the FDA Purple Book.
Why do different websites show different biosimilar dates?
Biosimilar availability isn’t based on one single date. Some sources use the reference-product exclusivity, some use the last listed patent, and patent litigation, settlements, and licenses can all change the real-world launch date. This page shows the underlying Purple Book dates so you can see why estimates differ.
Can a biosimilar launch before the last patent expires?
Sometimes. A biosimilar maker may settle with the reference manufacturer or receive a license to launch earlier. In other cases, the last listed protection delays competition.
What does “current Purple Book estimate” mean?
It means we’re using the latest patent and exclusivity dates currently listed in the FDA Purple Book. It is not a guaranteed launch date.
What does “FDA listed” mean?
It means the product appears in the FDA’s official directory. That’s a good sign a product exists for the U.S. market, but on its own it does not confirm a pharmacy can get it today. Where we have recent retail pricing data, we label it “Availability likely” instead.
What does a patent or protection date mean here?
It’s the latest date currently listed in the FDA Purple Book for a patent or exclusivity on the reference biologic. It can affect when a biosimilar becomes widely available — but it is not a guaranteed launch date. Settlements and licenses can move the real date earlier or later.
Built from the FDA Purple Book Patent List (patents the reference-product sponsor has publicly listed under the BPCIA) plus reference-product exclusivity. Biosimilars cannot launch until these clear; patent litigation and settlements can shift the real date. Biologics have no small-molecule generics — competition comes from FDA-licensed biosimilars, not the Orange Book.
Where does this data come from?
Patents and exclusivity from the FDA Purple Book (biologics), refreshed from public FDA data. Biosimilar 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 65597-0801-01, 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 – Q1 2026 · 5 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
89
Units reimbursed last 4 qtrs
291
Gross reimbursed last 4 qtrs
$1.39M
Avg / prescription
$15,644.68
Avg / unit
$4,786.28
Latest quarter Q1 2026
52Rx
Fee-for-service vs managed care
55% FFS 45% MCO
Fee-for-service · 49 Rx Managed care · 40 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: 98 units · 0.5 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: 164 units · 0.4 per 100k residents CA Utah: no data reported UT Colorado: no data reported CO Nebraska: no data reported NE Missouri: no data reported MO Kentucky: no data reported KY West Virginia: no data reported WV Virginia: 29 units · 0.3 per 100k residents 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: no data reported HI Texas: no data reported TX Florida: no data reported FL
Units reimbursed · per 100k residents
0.30.5
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 New York 0.5 /100k
2 California 0.4 /100k
3 Virginia 0.3 /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.

📊 Medicare Part D spend CMS · PART D · 2026 (Q1)

Medicare Part D (outpatient prescription) spending for Datroway — the program that covers self-administered drugs. 1 manufacturer.
⚠️ Drug-level data: CMS publishes Part D spending by drug, not by NDC — these figures combine every manufacturer, strength and package size sold under the name Datroway. That’s a different level of aggregation than the Medicaid card above, which is specific to this exact 11-digit NDC (pack size included), so the two aren’t directly comparable.
Period
Total Part D spend
$1.14M
Claims incl. refills
59
Beneficiaries
24
Spend / beneficiary
$47,552.45
Spend / claim
$19,343.37
Trend by period
💵 About the dollar figures: spending is what Part D plans paid before confidential manufacturer rebates, so the program’s real net cost is lower. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part D Spending by Drug (data.cms.gov), updated quarterly.

🔬 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 Datopotamab Deruxtecan — the ingredient across all brands.

Top reported reactions

Disease Progression157
Stomatitis103
Death34
Nausea30
Interstitial Lung Disease26
Fatigue25
Dry Eye22

Age at onset

Adult31
Elderly16

Reporter sex

639 reports
Male · 18%
Female · 82%

Serious outcomes

Death138
Hospitalization115
Disabling5
Reports over time (by year) — tap or hover for the count & year
2022 2023 2024 2026 4 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
65597-0801-01 You're viewing this 1 VIAL, SINGLE-DOSE in 1 CARTON (65597-801-01) / 5 mL in 1 VIAL, SINGLE-DOSE 2025-01-17 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 — Not published for this NDC No photo available yet for this listing.
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 65597-801-01, 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: 65597-0801-01, written without dashes as 65597080101. 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 65597-0801-01, the first segment (65597) is the labeler code FDA assigned to Daiichi Sankyo Inc.; the middle segment (0801) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (01) 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 Daiichi Sankyo Inc.. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Daiichi Sankyo 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 J9011 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.
🎯 Indications and Usage ~2 min read

1 INDICATIONS AND USAGE DATROWAY is a Trop-2-directed antibody and topoisomerase inhibitor conjugate indicated for the treatment of: adult patients with locally advanced or metastatic epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC) who have received prior EGFR-directed therapy and platinum-based chemotherapy. ( 1.1 ) This indication is approved under accelerated approval based on objective response rate and duration of response [see Clinical Studies (14.1) ] . Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trial. adult patients with unresectable or metastatic triple-negative breast cancer (TNBC) who are not candidates for PD-1/PD-L1 inhibitor therapy [see Clinical Studies (14.2) ] .

( 1.2 ) adult patients with unresectable or metastatic, hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative (IHC 0, IHC 1+ or IHC 2+/ISH-) breast cancer who have received prior endocrine-based therapy and chemotherapy for unresectable or metastatic disease. ( 1.3 )

1.1Locally Advanced or Metastatic EGFR-Mutated Non-Small Cell Lung Cancer (NSCLC) DATROWAY is indicated for the treatment of adult patients with locally advanced or metastatic epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC) who have received prior EGFR-directed therapy and platinum-based chemotherapy. This indication is approved under accelerated approval based on objective response rate and duration of response [see Clinical Studies (14.1) ] . Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trial.

1.2Unresectable or Metastatic Triple-Negative Breast Cancer (TNBC) DATROWAY is indicated for the treatment of adult patients with unresectable or metastatic triple-negative breast cancer (TNBC) who are not candidates for PD-1/PD-L1 inhibitor therapy [see Clinical Studies (14.2) ].

1.3Unresectable or Metastatic, HR-Positive, HER2-Negative Breast Cancer DATROWAY is indicated for the treatment of adult patients with unresectable or metastatic, hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative (IHC 0, IHC 1+ or IHC 2+/ISH-) breast cancer who have received prior endocrine-based therapy and chemotherapy for unresectable or metastatic disease.

⏱️ Dosage and Administration ~3 min read

2 DOSAGE AND ADMINISTRATION Reconstitute DATROWAY with Sterile Water for Injection. ( 2.5 ) Dilute with 5% Dextrose Injection. ( 2.5 ) For intravenous infusion only.

Do not administer as an intravenous push or bolus. DO NOT use Sodium Chloride Injection, USP. ( 2.5 ) Premedicate to reduce the risk of infusion reactions and nausea and vomiting.

( 2.3 ) The recommended dosage of DATROWAY is 6 mg/kg (up to a maximum of 540 mg for patients ≥90 kg) given as an intravenous infusion once every 3 weeks (21-day cycle) until disease progression or unacceptable toxicity. ( 2.3 , 2.4 )

2.1Patient Selection Select patients with locally advanced or metastatic NSCLC for treatment with DATROWAY based on the presence of epidermal growth factor receptor (EGFR) mutations in tumor or plasma specimens [see Clinical Studies (14.1) ] . Testing may be performed at any time from initial diagnosis and does not need to be repeated once EGFR mutation status has been established.

2.2Recommended Dosage The recommended dosage of DATROWAY is 6 mg/kg (up to a maximum of 540 mg for patients ≥90 kg) administered as an intravenous infusion once every 3 weeks (21-day cycle) until disease progression or unacceptable toxicity. If a planned dose is delayed or missed, administer as soon as possible; do not wait until the next planned cycle. Adjust the schedule of administration to maintain a 3-week interval between doses.

2.3Premedication, Concomitant Medications, and Required Eye Care Conduct an ophthalmic exam including visual acuity testing, slit lamp examination (with fluorescein staining), intraocular pressure, and fundoscopy at initiation of DATROWAY, at end of treatment, and as clinically indicated. While on treatment, conduct visual acuity testing and slit lamp examination every 3 cycles. Administer DATROWAY with the premedication and concomitant medications described in Table 1.

Monitor patients for infusion-related reactions in a setting where cardiopulmonary resuscitation medication and equipment are available. Monitor patients for at least 1 hour for the first 2 cycles of DATROWAY infusions. If there are no infusion-related reactions observed, monitor patients for at least 30 minutes for all subsequent cycles of infusions.

Table 1: Premedication and Concomitant Medications Premedication With or without systemic corticosteroid Examples (or equivalent) Timing of Treatment/Duration Eye drops [see Warnings and Precautions (5.2) ] Preservative-free lubricant eye drops Administer at least four times daily and as needed Mouthwash [see Warnings and Precautions (5.3) ] Steroid-containing mouthwash (dexamethasone oral solution 0.1 mg/mL) Administer four times daily and as needed Antihistamine [see Adverse Reactions (6.1) ] Diphenhydramine (25 to 50 mg) administered intravenously or orally Administer 30-60 minutes prior to each infusion Antipyretic [see Adverse Reactions (6.1) ] Acetaminophen (650 to 1,000 mg) administered intravenously or orally Administer 30-60 minutes prior to each infusion Antiemetics [see Adverse Reactions (6.1) ] 5-HT3 serotonin receptor antagonist or appropriate alternatives intravenously or oral Prior to each infusion and thereafter as needed

2.4Dosage Modifications Dosage Modifications for Adverse Reactions The recommended dose reduction levels for adverse reactions are described in Table 2. Table 2: Recommended Dosage Reductions of DATROWAY for Adverse Reactions Dose Reductions Recommended Dose First 4 mg/kg (up to a maximum of 360 mg for patients ≥90 kg) Second 3 mg/kg (up to a maximum of 270 mg for patients ≥90 kg) Third Permanently discontinue Do not re-escalate the DATROWAY dose after a dose reduction. Permanently discontinue DATROWAY in patients who are unable to tolerate 3 mg/kg intravenously once every 3 weeks.

The recommended dosage modifications and management of adverse reactions for DATROWAY are described in Table 3. Table 3: Dosage Modifications and Management of Adverse Reactions for DATROWAY Adverse Reaction Severity Toxi…

💊 Dosage Forms and Strengths 42 words

3 DOSAGE FORMS AND STRENGTHS For injection: 100 mg of datopotamab deruxtecan-dlnk as a white to yellowish white, lyophilized powder in a single-dose vial for reconstitution and further dilution. For injection: 100 mg lyophilized powder in a single-dose vial. ( 3 )

Contraindications 7 words

4 CONTRAINDICATIONS None. None. ( 4 )

⚠️ Warnings and Cautions ~3 min read

5 WARNINGS AND PRECAUTIONS Interstitial Lung Disease (ILD) and Pneumonitis: DATROWAY can cause severe and fatal cases of ILD/pneumonitis. Monitor for new or worsening signs and symptoms of ILD/pneumonitis. If ILD/pneumonitis is suspected, withhold DATROWAY and initiate corticosteroids.

Permanently discontinue DATROWAY in patients with confirmed Grade 2 or higher ILD/pneumonitis. ( 5.1 ) Ocular Adverse Reactions: DATROWAY can cause ocular adverse reactions including dry eye, keratitis, blepharitis, meibomian gland dysfunction, increased lacrimation, conjunctivitis, and blurred vision. Monitor patients for ocular adverse reactions during treatment with DATROWAY.

Advise patients to use preservative-free lubricating eye drops and to avoid using contact lenses during treatment with DATROWAY. Withhold, reduce the dose, or permanently discontinue DATROWAY based on the severity of ocular adverse reactions. Refer patients to an eye care professional for any new or worsening ocular signs and symptoms.

( 2.3 , 2.4 , 5.2 ) Stomatitis/Oral Mucositis: DATROWAY can cause stomatitis, including mouth ulcers and oral mucositis. Advise patients to use a steroid-containing mouthwash when starting treatment and to hold ice chips or ice water in mouth during the infusion of DATROWAY. Withhold, reduce the dose, or permanently discontinue DATROWAY based on severity.

( 2.3 , 2.4 , 5.3 ) Embryo-Fetal Toxicity : DATROWAY can cause fetal harm. Advise patients of potential risk to a fetus and to use effective contraception. ( 5.4 , 8.1 , 8.3 )

5.1Interstitial Lung Disease/Pneumonitis DATROWAY can cause severe, life-threatening, or fatal interstitial lung disease (ILD) or pneumonitis. Locally Advanced or Metastatic NSCLC In the pooled safety population of 484 patients with NSCLC from TROPION-Lung01, TROPION-Lung05, and TROPION-PanTumor01 [see Adverse Reactions (6.1) ], ILD/pneumonitis occurred in 7% of patients treated with DATROWAY, including 0.6% of patients with Grade 3 and 0.4% with Grade 4. There were 8 (1.7%) fatal cases.

The median time to first onset for ILD was 1.4 months (range: 0.2 months to 9 months). Eleven patients (2.3%) had DATROWAY withheld and 20 patients (4.1%) permanently discontinued DATROWAY due to ILD/pneumonitis. Systemic corticosteroids were required in 79% (26/33) of patients with ILD/pneumonitis.

ILD/pneumonitis resolved in 45% of patients. Unresectable or Metastatic Breast Cancer In the pooled safety population of 841 patients with breast cancer from TROPION-Breast01, TROPION-Breast02, TROPION-PanTumor01 and TROPION-PanTumor02 [see Adverse Reactions (6.1) ], ILD/pneumonitis occurred in 3.0% of patients treated with DATROWAY, including 0.4% of patients with Grade 3. There were two fatal cases (0.2%).

The median time to first onset for ILD was 5.3 months (range: 1.1 months to 19.3 months) and with a median duration of 1.2 months (range: 0.3 to 5.2). Eight patients (1.0%) had DATROWAY withheld and 10 patients (1.2%) permanently discontinued DATROWAY due to ILD/pneumonitis. Systemic corticosteroids were required in 64% (16/25) of patients with ILD/pneumonitis.

ILD/pneumonitis resolved in 40% of patients. Patients were excluded from clinical studies for a history of ILD/pneumonitis requiring treatment with steroids or for ongoing ILD/pneumonitis. Monitor patients for new or worsening respiratory symptoms indicative of ILD/pneumonitis (e.g., dyspnea, cough, fever) during treatment with DATROWAY.

For asymptomatic (Grade 1) ILD/pneumonitis, consider corticosteroid treatment (e.g., ≥0.5 mg/kg/day prednisolone or equivalent). For symptomatic ILD/pneumonitis (Grade 2 or greater), promptly initiate systemic corticosteroid treatment (e.g., ≥1 mg/kg/day prednisolone or equivalent) and continue for at least 14 days followed by gradual taper for at least 4 weeks. Withhold DATROWAY in patients with suspected ILD/pneumonitis and permanently discontinue DATROWAY if ≥Grade 2 ILD/pneumonitis is confirmed [see Dosage and Administration (2.4) ].

5.2…

🤒 Adverse Reactions ~3 min read

6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Interstitial Lung Disease/Pneumonitis [see Warnings and Precautions (5.1) ] Ocular Adverse Reactions [see Warnings and Precautions (5.2) ] Stomatitis [see Warnings and Precautions (5.3) ] The most common adverse reactions (≥20%), including laboratory abnormalities, in patients with: EGFR-mutated NSCLC were stomatitis, nausea, alopecia, fatigue, decreased hemoglobin, decreased lymphocytes, constipation, increased calcium, increased AST, decreased white blood cell count, increased lactate dehydrogenase, musculoskeletal pain, decreased appetite, increased ALT, and rash.

( 6.1 ) TNBC were stomatitis, increased amylase, nausea, alopecia, decreased hemoglobin, decreased white blood cells, constipation, decreased calcium, decreased lymphocytes, fatigue, decreased neutrophils, increased ALT, increased AST, dry eye, keratitis, decreased albumin, vomiting, musculoskeletal pain, decreased sodium, and increased blood alkaline phosphatase. ( 6.1 ) HR-positive, HER2-negative breast cancer were stomatitis, nausea, fatigue, decreased leukocytes, decreased calcium, alopecia, decreased lymphocytes, decreased hemoglobin, constipation, decreased neutrophils, dry eye, vomiting, increased ALT, keratitis, increased AST, and increased alkaline phosphatase.

( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Daiichi Sankyo, Inc. at 1-877-437-7763 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The pooled safety population described in WARNINGS AND PRECAUTIONS reflects exposure to DATROWAY in 1365 patients as a single agent at 6 mg/kg administered as an intravenous infusion once every 3 weeks (21-day cycle) until disease progression or unacceptable toxicity.

This included 137 patients with NSCLC in TROPION-Lung05 [see Clinical Studies (14.1) ] , 297 patients with NSCLC in TROPION-Lung01 [see Clinical Studies (14.1) ] , 360 patients with HR-positive, HER2-negative breast cancer in TROPION-Breast01 [see Clinical Studies (14.3) ] , 319 patients with TNBC in TROPION-Breast02 [see Clinical Studies (14.2) ] , 50 patients with NSCLC and 83 patients with breast cancer in TROPION-PanTumor01 (NCT03401385), and 40 patients with NSCLC and 79 patients with breast cancer in TROPION-PanTumor02 (NCT05460273).

Among the 1365 patients who received DATROWAY, 48% were exposed for greater than 6 months and 22% were exposed for greater than one year. In this pooled safety population, the most common (≥20%) adverse reactions were stomatitis (63%), nausea (51%), fatigue (42%), alopecia (38%), constipation (30%), vomiting (23%), decreased appetite (22%), and rash (20%). In this pooled safety population, the most common (≥2%) Grade 3 or 4 laboratory abnormalities were decreased lymphocytes (8%), decreased hemoglobin (3.7%), decreased sodium (3.0%), and decreased blood potassium (2.3%).

Locally Advanced or Metastatic EGFR-Mutated Non-Small Cell Lung Cancer TROPION-Lung05, TROPION-Lung01, TROPION-PanTumor01 The safety of DATROWAY was evaluated in 125 patients with EGFR-mutated NSCLC who received DATROWAY 6 mg/kg administered as an intravenous infusion once every 3 weeks (21-day cycle) until disease progression or unacceptable toxicity in TROPION-Lung05 and TROPION-Lung01 [see Clinical Studies (14.1) ] as well as TROPION-PanTumor01 (NCT03401385). Among these patients, the median duration of treatment was 6.1 months (range 0.7 months to 41.7 months).

The median age was 63 years (range: 36 to 81), 56% of patients were <65 years, 62% of patients were female; 66% were Asian, 26% were White, 0.8% were Black, 6% were other races; and 2.4% were of Hispanic ethnicity. Serious adve…

👥 Use in Specific Populations ~3 min read

8 USE IN SPECIFIC POPULATIONS Lactation: Advise not to breastfeed. ( 8.2 ) Infertility: May impair fertility in males and females. ( 8.3 )

8.1Pregnancy Risk Summary Based on its mechanism of action, DATROWAY can cause embryo-fetal harm when administered to a pregnant woman because the topoisomerase inhibitor component of DATROWAY, DXd, is genotoxic and affects actively dividing cells [see Clinical Pharmacology (12.1) , Nonclinical Toxicology (13.1) ] . There are no available data on the use of DATROWAY in pregnant women to inform a drug-associated risk. Advise patients of the potential risks to a fetus.

In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Data Animal Data There were no animal reproductive or developmental toxicity studies conducted with datopotamab deruxtecan-dlnk.

8.2Lactation Risk Summary There are no data regarding the presence of datopotamab deruxtecan-dlnk or its metabolites in human milk, the effects on the breastfed child, or the effects on milk production. Because of the potential for serious adverse reactions in a breastfed child, advise women not to breastfeed during treatment with DATROWAY and for 1 month after the last dose.

8.3Females and Males of Reproductive Potential DATROWAY can cause embryo-fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1) ]. Pregnancy Testing Verify pregnancy status of females of reproductive potential prior to initiation of DATROWAY. Contraception Females Advise females of reproductive potential to use effective contraception during treatment with DATROWAY and for 7 months after the last dose.

Males Because of the potential for genotoxicity, advise male patients with female partners of reproductive potential to use effective contraception during treatment with DATROWAY and for 4 months after the last dose [see Nonclinical Toxicology (13.1) ] . Infertility Based on findings in animal toxicity studies, DATROWAY may impair male and female reproductive function and fertility. The effects on reproductive organs in animals were irreversible [see Nonclinical Toxicology (13.1) ] .

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

8.5Geriatric Use Of the 125 patients with EGFR-mutated NSCLC in TROPION-Lung05, TROPION-Lung01, TROPION-PanTumor01 treated with DATROWAY 6 mg/kg, 44% were ≥65 years of age and 10% were ≥75 years of age. No clinically meaningful differences in efficacy and safety were observed between patients ≥65 years of age versus younger patients. Of the 841 patients with breast cancer in TROPION-Breast01, TROPION-Breast02, TROPION-PanTumor01, and TROPION-PanTumor02 treated with DATROWAY 6 mg/kg, 23% were ≥65 years of age and 4.5% were ≥75 years of age.

Grade ≥3 and serious adverse reactions were more common in patients ≥65 years (45% and 22%, respectively) compared to patients <65 years (38% and 16%, respectively). No other meaningful differences in safety or efficacy were observed between patients ≥65 years of age versus younger patients.

8.6Renal Impairment Monitor patients with renal impairment for increased adverse reactions, including respiratory reactions. A higher incidence of ILD/pneumonitis has been observed in patients with creatinine clearance (CLcr) 30 to <90 mL/min (estimated by Cockcroft Gault) [see Warnings and Precautions (5.1) ]. No dosage adjustment is recommended in patients with CLcr 30 to <90 mL/min [see Clinical Pharmacology (12.3) ] .

The pharmacokinetics of datopotamab deruxtecan-dlnk or DXd in patients with CLcr <30 mL/min is unknown.

8.7Hepatic Impairment Monitor patients with moderate hepatic impairment (total bilirubin >1.5 to 3 times ULN and any AST) for increased adverse reactions [see Dosage and Administration (2.4) ] . Limited data are available in patients with moderate hepatic impairment. No dosage adjustment is reco…

🤰 Pregnancy 117 words

8.1Pregnancy Risk Summary Based on its mechanism of action, DATROWAY can cause embryo-fetal harm when administered to a pregnant woman because the topoisomerase inhibitor component of DATROWAY, DXd, is genotoxic and affects actively dividing cells [see Clinical Pharmacology (12.1) , Nonclinical Toxicology (13.1) ] . There are no available data on the use of DATROWAY in pregnant women to inform a drug-associated risk. Advise patients of the potential risks to a fetus.

In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Data Animal Data There were no animal reproductive or developmental toxicity studies conducted with datopotamab deruxtecan-dlnk.

🧒 Pediatric Use 15 words

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

🧓 Geriatric Use 127 words

8.5Geriatric Use Of the 125 patients with EGFR-mutated NSCLC in TROPION-Lung05, TROPION-Lung01, TROPION-PanTumor01 treated with DATROWAY 6 mg/kg, 44% were ≥65 years of age and 10% were ≥75 years of age. No clinically meaningful differences in efficacy and safety were observed between patients ≥65 years of age versus younger patients. Of the 841 patients with breast cancer in TROPION-Breast01, TROPION-Breast02, TROPION-PanTumor01, and TROPION-PanTumor02 treated with DATROWAY 6 mg/kg, 23% were ≥65 years of age and 4.5% were ≥75 years of age.

Grade ≥3 and serious adverse reactions were more common in patients ≥65 years (45% and 22%, respectively) compared to patients <65 years (38% and 16%, respectively). No other meaningful differences in safety or efficacy were observed between patients ≥65 years of age versus younger patients.

🧬 Clinical Pharmacology ~3 min read

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Datopotamab deruxtecan-dlnk, is a Trop-2-directed antibody-drug conjugate. The antibody is a humanized anti-Trop2 IgG1. The small molecule, DXd, is a topoisomerase I inhibitor attached to the antibody by a cleavable linker.

Following binding to Trop-2 on cells, including tumor cells, datopotamab deruxtecan-dlnk undergoes internalization and intracellular linker cleavage by lysosomal enzymes. Upon release, the membrane-permeable DXd causes DNA damage and apoptotic cell death. Datopotamab deruxtecan-dlnk had anti-tumor activity in mouse models of lung cancer including EGFR-mutated and breast cancer.

12.2Pharmacodynamics Datopotamab deruxtecan-dlnk time course of pharmacodynamic response is unknown. Exposure-Response Relationships A relationship between datopotamab deruxtecan-dlnk exposure and efficacy has not been fully characterized in breast cancer or EGFR-mutated NSCLC. In the pooled population of NSCLC (including EGFR-mutated NSCLC) and breast cancer patients, higher datopotamab deruxtecan-dlnk systemic exposure is associated with a higher incidence rate of serious adverse reactions, dosage interruptions, dose reductions, stomatitis/oral mucositis, ocular adverse reactions, and Grade ≥3 adverse reactions.

Cardiac Electrophysiology At datopotamab deruxtecan-dlnk doses up to 10 mg/kg (1.7 times the recommended dose), mean increase in the QTc interval >20 ms was not observed.

12.3Pharmacokinetics Datopotamab deruxtecan-dlnk and DXd exposure after the first dose of the approved recommended dosage of cycle 1 are provided in Table 10. Datopotamab deruxtecan-dlnk and released DXd maximum concentration (C max ) and area under the time-concentration curve (AUC) increases proportionally over a dose range of 4 mg/kg to 10 mg/kg (approximately 0.7 to 1.7 times the approved recommended dosage). No clinically significant datopotamab deruxtecan-dlnk accumulation occurs between cycles 1 and 3.

Table 10: Datopotamab Deruxtecan-dlnk and DXd Mean (CV%) Exposure After the First Dose PK Parameter Datopotamab deruxtecan-dlnk DXd Abbreviations: C max =maximum concentration; AUC =area under the time-concentration curve C max 154 µg/mL (20%) 2.8 ng/mL (58%) AUC 671 µg*day/mL (31%) 18 ng*day/mL (43%) Distribution Datopotamab deruxtecan-dlnk mean steady state volume of distribution is 3.5 (23%) L. DXd plasma protein binding is approximately 98% and the blood-to-plasma concentration ratio is 0.6 in vitro. Elimination The datopotamab deruxtecan-dlnk median elimination half-life (t 1/2 ) is 4.8 days (1.0, 8.2) and the released DXd median apparent t 1/2 is approximately 5.5 days (3.2, 8.8).

The estimated datopotamab deruxtecan-dlnk clearance is 0.6 (31.5%) L/day. Metabolism Datopotamab deruxtecan-dlnk undergoes intracellular cleavage by lysosomal enzymes to release DXd . The humanized Trop-2 IgG1 monoclonal antibody is expected to be degraded into small peptides and amino acids via catabolic pathways in the same manner as endogenous IgG.

In vitro, DXd is primarily metabolized by CYP3A4. Specific Populations The mean volume of distribution and clearance of datopotamab deruxtecan-dlnk and DXd increase with increasing body weight (36 kg to 156 kg). No clinically significant differences in the pharmacokinetics of datopotamab deruxtecan-dlnk or DXd were observed based on age (26 to 86 years), race (Asian, White, or Black), sex, mild hepatic impairment (total bilirubin ≤ULN and any AST >ULN or total bilirubin >1 to 1.5 times ULN and any AST), or CLcr 30 to <90 mL/min.

The pharmacokinetics of datopotamab deruxtecan-dlnk in patients with moderate hepatic impairment (total bilirubin >1.5 to 3 times ULN and any AST) was comparable to patients with normal hepatic function (total bilirubin and AST ≤ULN). The steady state average DXd AUC was 2.5-fold higher in patients with moderate hepatic impairment compared to patients with normal hepatic function. The effect of severe hepatic impairment (total bilirubin >3 times…

🧬 Mechanism of Action 83 words

12.1Mechanism of Action Datopotamab deruxtecan-dlnk, is a Trop-2-directed antibody-drug conjugate. The antibody is a humanized anti-Trop2 IgG1. The small molecule, DXd, is a topoisomerase I inhibitor attached to the antibody by a cleavable linker.

Following binding to Trop-2 on cells, including tumor cells, datopotamab deruxtecan-dlnk undergoes internalization and intracellular linker cleavage by lysosomal enzymes. Upon release, the membrane-permeable DXd causes DNA damage and apoptotic cell death. Datopotamab deruxtecan-dlnk had anti-tumor activity in mouse models of lung cancer including EGFR-mutated and breast cancer.

📦 How Supplied / Storage and Handling 92 words

16 HOW SUPPLIED/STORAGE AND HANDLING How Supplied DATROWAY (datopotamab deruxtecan-dlnk) for injection is a white to yellowish white lyophilized powder supplied as: Carton Contents NDC One 100 mg single-dose vial NDC 65597-801-01 Storage and Handling Store vials in a refrigerator at 2°C to 8°C (36°F to 46°F) in the original carton to protect from light until time of reconstitution. Do not freeze. Do not shake the reconstituted or diluted solution [see Dosage and Administration (2.5) ] .

DATROWAY (datopotamab deruxtecan-dlnk) is a hazardous drug. Follow applicable special handling and disposal procedures. 1

📦 Storage and Handling 60 words

Storage and Handling Store vials in a refrigerator at 2°C to 8°C (36°F to 46°F) in the original carton to protect from light until time of reconstitution. Do not freeze. Do not shake the reconstituted or diluted solution [see Dosage and Administration (2.5) ] . DATROWAY (datopotamab deruxtecan-dlnk) is a hazardous drug. Follow applicable special handling and disposal procedures. 1

📋 Description 184 words

11 DESCRIPTION Datopotamab deruxtecan-dlnk is a Trop-2-directed antibody and topoisomerase inhibitor conjugate. Datopotamab deruxtecan-dlnk is an antibody-drug conjugate (ADC) composed of three components: 1) a humanized anti-Trop-2 IgG1 monoclonal antibody (mAb), covalently linked to 2) a topoisomerase I inhibitor, via 3) a tetrapeptide-based cleavable linker. Deruxtecan is composed of a protease-cleavable maleimide tetrapeptide linker and the topoisomerase inhibitor, DXd, which is an exatecan derivative.

The antibody is produced in Chinese hamster ovary cells by recombinant DNA technology, and the topoisomerase inhibitor and linker are produced by chemical synthesis. Approximately 4 molecules of deruxtecan are attached to each antibody molecule. Datopotamab deruxtecan-dlnk has the following structure: DATROWAY (datopotamab deruxtecan-dlnk) for injection is a sterile, white to yellowish white, preservative-free lyophilized powder in single-dose vials.

Each vial delivers 100 mg of datopotamab deruxtecan-dlnk, L-histidine (3.88 mg), L-histidine hydrochloride monohydrate (5.25 mg), polysorbate 80 (1.50 mg), and sucrose (450 mg). Following reconstitution with 5 mL of Sterile Water for Injection, USP, the resulting concentration of datopotamab deruxtecan-dlnk is 20 mg/mL with a pH of 6.0. The resulting solution is administered by intravenous infusion following dilution.

Chemical Structure

💬 Information for Patients ~2 min read

17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Medication Guide). Interstitial Lung Disease/Pneumonitis Inform patients of the risks of severe or fatal ILD. Advise patients to contact their healthcare provider immediately for any of the following: cough, shortness of breath, fever, or other new or worsening respiratory symptoms [see Warnings and Precautions (5.1) ] .

Ocular Adverse Reactions Inform patients about the need for eye exams at initiation and during treatment with DATROWAY [see Dosage and Administration (2.3) ] . Advise patients to contact their healthcare provider if they experience any eye symptoms [see Warnings and Precautions (5.2) ] . Advise patients to use preservative-free lubricating eye drops at least four times daily and as needed and to avoid use of contact lenses during treatment with DATROWAY [see Dosage and Administration (2.3 , 2.4) ] .

Stomatitis Inform patients of the risk of stomatitis. Advise patients to contact their healthcare provider if they experience any symptoms . Inform patients to use a steroid-containing mouthwash for prophylaxis and treatment of stomatitis.

Instruct patients to hold ice chips or ice water in their mouth throughout the infusion of DATROWAY [see Warnings and Precautions (5.3) ] . Embryo-Fetal Toxicity Inform female patients of the potential risk to a fetus. Advise female patients to inform their healthcare provider of a known or suspected pregnancy [see Warnings and Precautions (5.4) , Use in Specific Populations (8.1) ] .

Advise females of reproductive potential to use effective contraception during treatment with DATROWAY and for 7 months after the last dose [see Use in Specific Populations (8.3) ] . Advise male patients with female partners of reproductive potential to use effective contraception during treatment with DATROWAY and for 4 months after the last dose [see Use in Specific Populations (8.3) ] . Lactation Advise women not to breastfeed during treatment and for 1 month after the last dose of DATROWAY [see Use in Specific Populations (8.2) ] .

Infertility Advise males and females of reproductive potential that DATROWAY may impair fertility [see Use in Specific Populations (8.3) ] . Manufactured by: Daiichi Sankyo, Inc., Basking Ridge, NJ 07920 U.S. License No.

2128 Marketed by: Daiichi Sankyo, Inc., Basking Ridge, NJ 07920 and AstraZeneca Pharmaceuticals LP, Wilmington, DE 19850 DATROWAY ® is a registered trademark of Daiichi Sankyo Company, Ltd. © 2026 Daiichi Sankyo Co., Ltd. USPI-DAT-C9-0526-r004

💬 Medication Guide ~3 min read

This Medication Guide has been approved by the U.S. Food and Drug Administration. Revised: 05/2026 MEDICATION GUIDE DATROWAY ® (DAT-roe-way) (datopotamab deruxtecan-dlnk) for injection, for intravenous use What is the most important information I should know about DATROWAY?

DATROWAY can cause serious side effects, including: Lung problems that may be severe, life-threatening, or that may lead to death . If you develop lung problems your healthcare provider may treat you with corticosteroid medicines. Tell your healthcare provider right away if you get any of the following signs and symptoms: cough trouble breathing or shortness of breath fever other new or worsening breathing symptoms such as chest tightness or wheezing Eye problems.

Eye problems are common with DATROWAY and can also be severe. Tell your healthcare provider right away if you develop any new or worsening eye problems during treatment with DATROWAY, including dry eyes, eye pain, eye redness, eye swelling, eye irritation, increased tears, feeling like something is in your eyes, discharge from your eyes, eye crusting, sensitivity to light, blurred vision, or vision changes. You should use preservative-free lubricating eye drops at least 4 times a day and as needed.

Do not wear contact lenses during treatment with DATROWAY unless your eye specialist tells you to. Your healthcare provider will send you to an eye specialist to check your eyes when you start your treatment with DATROWAY, every three 21-day treatment cycles (about every 9 weeks), at the end of treatment, and as needed for any new or worsening signs and symptoms of eye problems. Mouth ulcers and sores.

Mouth ulcers and sores are common with DATROWAY and can also be severe. Tell your healthcare provider right away if you develop mouth pain, swelling, redness, ulcers, or sores during treatment with DATROWAY. Your healthcare provider will prescribe a steroid-containing mouthwash to use 4 times a day and as needed during treatment with DATROWAY.

You should hold ice chips or ice water in your mouth during your DATROWAY infusions. Your healthcare provider will check you for these side effects during your treatment with DATROWAY. Your healthcare provider may reduce your dose, delay treatment, or completely stop treatment with DATROWAY if you have severe side effects.

Harm to your unborn baby. Tell your healthcare provider right away if you become pregnant or think you might be pregnant during treatment with DATROWAY. If you are able to become pregnant, your healthcare provider should do a pregnancy test before you start treatment with DATROWAY.

Females who are able to become pregnant should use effective birth control (contraception) during treatment with DATROWAY and for 7 months after the last dose. Males who have female partners that are able to become pregnant should use effective birth control (contraception) during treatment with DATROWAY and for 4 months after the last dose. See " What are the possible side effects of DATROWAY? " for more information about side effects.

What is DATROWAY? DATROWAY is a prescription medicine used to treat adults who have: non-small cell lung cancer (NSCLC) that has certain mutations in a gene called epidermal growth factor receptor (EGFR): that has spread to areas outside of the lung (locally advanced) or has spread to other parts of the body (metastatic), and who have received prior EGFR-directed medicine and platinum-based chemotherapy. triple-negative breast cancer (TNBC): that cannot be removed by surgery (unresectable) or has spread to other parts of the body (metastatic), and who cannot receive PD-1 or PD-L1 inhibitor therapy. hormone receptor (HR)-positive and human epidermal growth factor receptor 2 (HER2)-negative breast cancer: that cannot be removed by surgery (unresectable) or has spread to other parts of the body (metastatic), and who have received prior endocrine-based therapy and chemotherapy treatment for unresectable or metastatic disease.

It is not known…

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.