TRICARE Clinical Trial Coverage & Rules (2026) | TRICARE.com

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## Definition A clinical trial is a research study involving human participants designed to evaluate the safety and effectiveness of new medical treatments, drugs, or devices.

## What it means in practice For TRICARE beneficiaries, clinical trials can provide access to cutting-edge medical interventions when standard treatments have proven ineffective. TRICARE generally does not cover "experimental" or "investigational" treatments; however, it makes a specific exception for certain clinical trials. Specifically, TRICARE will cover the **routine cost of care** associated with participation in clinical trials sponsored by the National Cancer Institute (NCI). This includes physician visits, laboratory tests, and imaging that would have been required even if you were receiving standard conventional treatment.

To qualify for coverage, the clinical trial must be a Phase I, Phase II, or Phase III study aimed at the prevention, detection, or treatment of cancer. Additionally, there must be no clearly superior non-investigational treatment available. While TRICARE covers the routine costs, the trial sponsor is typically responsible for providing the investigational drug or device itself at no cost to the patient or the government.

Beneficiaries must obtain **prior authorization** from their regional contractor—Humana Military in the East Region or TriWest Healthcare Alliance in the West Region—before enrolling. Without this pre-approval, TRICARE may deny all associated claims. If you are enrolled in TRICARE Prime, you generally need a referral from your Primary Care Manager (PCM). If you use TRICARE Select, you may self-refer to an NCI-sponsored trial, but you will still need the contractor to verify that the trial meets TRICARE's specific coverage criteria.

Costs follow your standard plan rules. For example, in 2026, a TRICARE Select Group A retiree might pay a $30+ copayment for a specialist visit associated with the trial, while an active duty family member on TRICARE Prime would likely have $0 out-of-pocket costs for routine care within the trial, provided they have the proper authorization.

## Related terms * **Investigational:** A medical procedure, drug, or device that has not been proven safe and effective through clinical trials and is not yet approved by the FDA or TRICARE. * **Prior Authorization:** A requirement to get approval from Humana Military or TriWest before receiving a specific medical service to ensure it is covered. * **National Cancer Institute (NCI):** The federal government's principal agency for cancer research; TRICARE only covers clinical trials that are NCI-sponsored. * **Routine Costs:** Expenses for medical items and services that are generally covered by TRICARE, such as hospital stays and diagnostic tests, even when provided as part of a trial. * **Evidence-Based Medicine:** Medical practice based on the best available current research, which TRICARE uses to determine what treatments are "proven" versus "experimental."

## Sources * TRICARE.mil - Clinical Trials: https://www.tricare.mil/CoveredServices/IsItCovered/ClinicalTrials * National Cancer Institute (NCI): https://www.cancer.gov/about-cancer/treatment/clinical-trials * Defense Health Agency (DHA) - TRICARE Policy Manual: https://manuals.health.mil/