Oncology

Keytruda (pembrolizumab)

Patient Assistance Program Guide — Merck Patient Assistance Program

Rules verified: August 30, 2026
Merck Patient Assistance Program
Program name
Processing time
shipped to prescriber
Medication delivery
$63,840
1-person income limit

Current program eligibility

As stated by the Merck Access PAP Keytruda guideline we work from. Programs change their rules without notice, so we confirm your eligibility before filing.

Income limit
400% of the federal poverty level
Employer or private insurance
Yes
Medicaid
Yes
Medicare A&B
Yes
Medicare A&B with Part D
Yes

Do You Qualify?

Income

Up to $63,840 for a single person

Insurance

Primarily for uninsured patients. Exceptions may be made for insured patients (including Medicare Part D) facing financial/medical hardship if income criteria are met and they are not enrolled in alternative funding programs.

Residency

U.S. resident or legal resident of U.S. Territories; does not require U.S. citizenship.

Apply Through RX Advantages

Income Limits (400% FPL)

Household SizeMax Annual Income
1 person$63,840
2 persons$86,560
3 persons$109,280
4 persons$132,000

The program guideline sets the limit at 400% of the federal poverty level. Figures use the 2026 HHS guidelines for the 48 contiguous states.

Based on 2026 HHS Federal Poverty Level guidelines.

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Ready to Apply for Keytruda Assistance?

RX Advantages handles the entire Merck Patient Assistance Program application on your behalf — paperwork, physician coordination, and refill tracking. It takes about 15 minutes to get started.

Start Your ApplicationSee How It Works

No SSN required on the web form · From $49.95/month