A clinician sitting beside a patient in soft, natural light — unstaged, real faces, warm sepia warmth.

Taiho Oncology, Inc.

Patients are our first priority.

A purpose-driven scientific organization committed to delivering treatments that make a real difference in the lives of people living with cancer.

Our mission

A culture where people come first.

We are a purpose-driven scientific organization. The work is to translate science into therapies for the people who need them — and to publish the trial data on schedule, even when it is inconvenient.

The next generation of agents is in the hands of clinicians, scientists, and operators who report to one another before they report to the market.

A patient and family member at a waiting-room bench, soft daylight from the side, hands clasped. Unstaged, candid.

A family in the waiting room — real faces, real light, real hands.

For patients

Heard from the people we serve.

Patient and caregiver perspectives shape every program — not as a focus group at the end, but as participants from the first protocol draft forward.

A scientist working at a real lab bench, hands on a pipette or instrument, mid-key daylight from a high window.

A scientist at the bench — daylight from a high window, warm tones.

For science

We innovate together.

Scientific collaboration is the discipline. Our scientists publish, partner, and translate — small teams with the bench knowledge to push the next generation of agents forward.

Development pipeline

Three phases. Four indications. New agents entering Phase 1 in 2026.

As of Q2 2026

  • TAS-126pivotal

    Metastatic colorectal cancer

    Oral nucleoside analog

    Phase 3
  • TAS-208

    Advanced gastric cancer

    Selective MEK inhibitor

    Phase 2
  • TAS-419enrolling

    Pancreatic ductal adenocarcinoma

    Antibody-drug conjugate

    Phase 2
  • TAS-507enrolling

    Hematologic malignancies

    Bispecific T-cell engager

    Phase 1
  • TAS-612

    Solid tumors (basket trial)

    KRAS G12C inhibitor

    Phase 1

Collaboration

A dedication to scientific collaboration — at every scale.

We partner with academic centers, biotech founders, and patient advocacy groups. The premise is simple: the science compounds when the people doing it are talking to each other.