Affording Your Medicine
Learn more about options to make your prescribed DATROWAY treatment more affordable
This site is intended for US audiences only.
1-855-DATRO4U (1-855-328-7648)
Patient Savings Program
Patient Assistance Programs
Independent Foundations
DATROWAY Patient Savings Program for commercially insured patients
If you have commercial insurance, the DATROWAY Patient Savings Program may help you with out-of-pocket costs. Talk to your doctor to sign up for the program or call DATROWAY at 1-855-DATRO4U (1-855-328-7648).
If you do not have commercial insurance, please see the Patient Assistance Programs and Independent Foundations tabs.
Eligible patients with a valid prescription for DATROWAY may pay as little as $0 per infusion and $0 out-of-pocket costs for DATROWAY. The annual benefit can be used for the cost of the drug itself, and may also cover up to $100 in infusion costs per administration and may also cover an eye exam related to the use of DATROWAY up to $250 per exam.* There are no income requirements to participate in the program.
*Patients who are residents of Massachusetts or Rhode Island are not eligible for infusion administration or eye exam assistance.
See below for full patient eligibility. Restrictions apply.
Do I have commercial insurance?
If you have commercial or private insurance, that means you get it from your job, your parent’s or spouse’s job, or healthcare exchange. You do not get your insurance from the government.
- You must be a resident of the United States or Puerto Rico
- You must have commercial insurance that covers DATROWAY, but not the full cost of the medication
- You are ineligible if prescriptions are paid by any state or other federally funded programs, including, but not limited to, Medicare Part B, Medicare Part D, Medicaid, Medigap, VA, or TRICARE, or where prohibited by law
- Offer is invalid for all transactions and claims submitted more than 180 days from the date on the explanation of benefits
- Eligibility rules apply. Additional restrictions may apply
Talk to your doctor about signing up for the DATROWAY Patient Savings Program.
If you need help signing up or have questions, please contact DATROWAY at 1-855-DATRO4U (1-855-328-7648).
If you are uninsured, underinsured, or a Medicare patient and you cannot afford your medicine, you may be able to get help from our Patient Assistance Programs.
Patient Assistance Programs (PAP) can provide DATROWAY for free if you qualify. Eligibility rules apply.
Talk to your doctor or call DATROWAY to find out more at 1-855-DATRO4U (1-855-328-7648).
See below for full eligibility. Restrictions apply.
PAP Enrollment Form
To determine if you are eligible for the DATROWAY Patient Assistance Program, print out the PAP enrollment form and work with your doctor to complete it. It can be faxed to 1-833-904-1851 or mailed to:
DATROWAY Patient Assistance Programs, PO Box 2355, Morristown, NJ 07962
Eligibility
In order to determine if you may be eligible for our programs, please review the important information below.
You must have been prescribed DATROWAY.
You must be a resident of the US.
You must not have insurance, private or government, that covers DATROWAY.
You must not be receiving any other assistance to help pay for DATROWAY.
Your annual income must be at or below a certain level.
If you are a Medicare Beneficiary:
- You must have spent at least 3% of your annual household income on prescription medicines in the current year
If you have experienced a life-changing event in the past year, and your financial documentation does not accurately reflect your current situation, we encourage you to apply to Patient Assistance Programs. You may still meet the criteria to enroll. Some examples of this type of event would be:
- Loss of employment
- Change in income
- Loss of, or change in, prescription drug coverage
- Change in marital status
- Change in household number
General referral to independent charitable foundations
Assistance may be available through independent foundations such as those listed below. Foundations can provide a variety of assistance types: co-pay, transportation, premium, patient education, etc.
These foundations are not associated with AstraZeneca or Daiichi Sankyo; specific details and eligibility requirements can be found directly at the foundations’ websites.
AstraZeneca and Daiichi Sankyo do not endorse or guarantee reimbursement or support from any of the organizations listed above.
DATROWAY4U: Patient Access to Treatment
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.
DATROWAY was FDA approved for this use based on a clinical study that measured how many patients responded and how long they responded. DATROWAY is still being studied to confirm these results.
- 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 if DATROWAY is safe and effective in children.
Before receiving DATROWAY, tell your healthcare provider about all of your medical conditions, including if you:
- Have lung or breathing problems.
- Have eye problems.
- Use contact lenses.
- Have kidney problems.
- Have liver problems.
- Are breastfeeding or plan to breastfeed. It is not known if DATROWAY passes into your breast milk. Do not breastfeed during treatment with DATROWAY and for 1 month after the last dose.
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
How will I receive DATROWAY?
- You will receive DATROWAY into your vein through an intravenous (IV) line by your healthcare provider.
- DATROWAY is usually given 1 time every three weeks (21-day treatment cycle).
- You will receive your first infusion over 90 minutes. If you do not have problems with your first infusion, you may receive your next infusions over 30 minutes.
- You will be monitored for side effects for at least 1 hour after your first 2 infusions. If you do not have problems after your second infusion, you will be monitored for at least 30 minutes after each following infusion.
- Your healthcare provider will decide how many treatments you need.
- Your healthcare provider will give you medicines before your infusion to help prevent nausea, vomiting, and infusion-related reactions.
- Your healthcare provider may slow down or temporarily stop your infusion of DATROWAY if you have an infusion-related reaction, or permanently stop DATROWAY if you have severe infusion reactions, including severe allergic reactions.
- If you miss a planned dose of DATROWAY, call your healthcare provider right away to schedule an appointment. Do not wait until the next planned treatment cycle.
What are the possible side effects of DATROWAY?
DATROWAY can cause serious side effects, including:
- See "What is the most important information I should know about DATROWAY?"
The most common side effects of DATROWAY when used in adults with EGFR-mutated NSCLC include:
- Nausea
- Hair loss
- Tiredness
- Decreased red blood cell counts
- Decreased white blood cell counts
- Constipation
- Increased blood levels of calcium
- Increased blood levels of liver enzymes
- Increased levels of enzyme called lactate dehydrogenase in the blood
- Muscle and joint pain
- Decreased appetite
- Rash
The most common side effects of DATROWAY when used in adults with TNBC include:
- Increased levels of digestive enzyme (amylase) in the blood
- Nausea
- Hair loss
- Decreased red blood cell counts
- Decreased white blood cell counts
- Constipation
- Decreased blood levels of calcium
- Tiredness
- Increased blood levels of liver enzymes
- Dry eye
- An eye problem called keratitis. See “What is the most important information I should know about DATROWAY?”
- Decreased protein levels (albumin) in the blood
- Vomiting
- Muscle and joint pain
- Decreased blood levels of sodium
- Increased blood levels of alkaline phosphatase
The most common side effects of DATROWAY when used in adults with HR-positive HER2-negative breast cancer include:
- Nausea
- Tiredness
- Decreased white blood cell counts
- Decreased blood levels of calcium
- Hair loss
- Decreased red blood cell counts
- Constipation
- Dry eye
- Vomiting
- Increased blood levels of liver enzymes
- An eye problem called keratitis
- Increased blood levels of alkaline phosphatase
DATROWAY may cause fertility problems in males and females, which may affect your ability to have children. Talk to your healthcare provider if you have concerns about fertility.
These are not all of the possible side effects of DATROWAY. Call your healthcare provider for medical advice about side effects. You may report side effects to Daiichi Sankyo at 1-877-437-7763 or to FDA at 1-800-FDA-1088.
Please see Prescribing Information and Medication Guide for additional Important Safety Information.
DATROWAY® is a registered trademark of Daiichi Sankyo Company, Limited.
© 2025 Daiichi Sankyo, Inc. and AstraZeneca. All rights reserved. PP-US-DT-0119; US-98444 06/25
