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S-1 plus CDDP

Taiho Pharmaceutical Co., Ltd. · Phase 3 active Small molecule

S-1 plus CDDP is a combination chemotherapy regimen that inhibits thymidylate synthase and causes DNA cross-linking to suppress cancer cell proliferation.

S-1 plus CDDP is a combination chemotherapy regimen that inhibits thymidylate synthase and causes DNA cross-linking to suppress cancer cell proliferation. Used for Gastric cancer, Gastroesophageal junction cancer, Esophageal cancer.

At a glance

Generic nameS-1 plus CDDP
SponsorTaiho Pharmaceutical Co., Ltd.
Drug classCombination chemotherapy (fluoropyrimidine + platinum agent)
TargetThymidylate synthase (S-1); DNA (CDDP)
ModalitySmall molecule
Therapeutic areaOncology
PhasePhase 3

Mechanism of action

S-1 is an oral fluoropyrimidine prodrug that inhibits thymidylate synthase, disrupting DNA synthesis. CDDP (cisplatin) is a platinum-based agent that forms DNA adducts and cross-links, preventing DNA replication and transcription. Together, they provide synergistic cytotoxic effects against rapidly dividing cancer cells.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results