Tucatinib

Not yet reviewed: Listed from FDA or ClinicalTrials.gov records; an editor has not checked it yetListed from FDA or ClinicalTrials.gov records; an editor has not checked it yet.

Also known as Tukysa

Seagen Inc. · Colorectal Neoplasms; Esophageal Adenocarcinoma; Gastric Adenocarcinoma; Gastroesophageal Junction Adenocarcinoma; HER2 Positive Breast Cancer

Key figures

  • Next catalyst

    None scheduled

    Only dates with a source are listed

  • Phase

    Approved

    Not recorded

  • Linked trials

    4

    From ClinicalTrials.gov

  • Latest FDA action

    Approved

    NDA213411,

Recalls, shortages, patents and EU status at a glance

Key information

Indications
Colorectal Neoplasms; Esophageal Adenocarcinoma; Gastric Adenocarcinoma; Gastroesophageal Junction Adenocarcinoma; HER2 Positive Breast Cancer Source: Conditions from ClinicalTrials.gov (opens in a new tab)
Designations
None recorded
Next catalyst
None scheduled

Development timeline

  1. Preclinical Completed
  2. Phase 1 Completed
  3. Phase 2 CompletedFirst trial start 22 Mar 20211 linked trial
  4. Phase 3 CompletedFirst trial start 2 Oct 20194 linked trials
  5. Filed Completed
  6. Approved Current stageFirst approval 17 Apr 2020

Overview

Mechanism
Not recorded
Route
Not recorded
Modality
Not recorded
Specialties
Not recorded

Overview text is written by HealthTrade editors.

Key dates

No catalysts yet. Editors add each date together with its source.

FDA designations

No FDA designations are on record for Tucatinib. Editors add each one with its source.

Filed application

No filed application is on record for Tucatinib. Approvals are listed under FDA actions.

FDA advisory committees

No FDA advisory committee meetings are on record for Tucatinib.

Clinical trials

Trials linked to Tucatinib
TrialTitlePhaseStatusEnrollmentPrimary completionResults posted
NCT05253651ClinicalTrials.gov record for NCT05253651 (opens in a new tab)MOUNTAINEER-03A Study of Tucatinib With Trastuzumab and mFOLFOX6 Versus Standard of Care Treatment in First-line HER2+ Metastatic Colorectal CancerPhase 3Recruiting400 (estimated)31 Dec 2027 (estimated) No

Publications listing MOUNTAINEER-03 (1), newest first

  1. MOUNTAINEER-03 phase III study design: first-line mFOLFOX6 + tucatinib + trastuzumab for HER2+ metastatic colorectal cancer.

    Future oncology (London, England) · 2025 Feb

Citations from PubMed, U.S. National Library of Medicine; abstracts are not stored. A publication lists this study’s NCT number and may be a review that cites many studies.

NCT05132582ClinicalTrials.gov record for NCT05132582 (opens in a new tab)HER2CLIMB-05A Study of Tucatinib or Placebo With Trastuzumab and Pertuzumab for Metastatic HER2+ Breast CancerPhase 3Active, not recruiting654 (actual)5 Sep 2025 (actual) Yes First posted Results on ClinicalTrials.gov for NCT05132582 (opens in a new tab)

Posted results on ClinicalTrials.gov for HER2CLIMB-05

  • Progression-Free Survival (PFS) as Assessed by Investigator Per Response Evaluation Criteria in Solid Tumors (RECIST) Version (v) 1.1 (Months)
    • Tucatinib + Trastuzumab + Pertuzumab vs Placebo + Trastuzumab + Pertuzumab: Hazard Ratio (HR) 0.641 (95% CI 0.514 to 0.799), p-value <0.0001, Log Rank, other

Serious adverse events (From first dose of study treatment (Day 1) up to 30 days after the last dose of study treatment (maximum up to 42.3 months)): Tucatinib + Trastuzumab + Pertuzumab 55 of 326; Placebo + Trastuzumab + Pertuzumab 26 of 324

Source: ClinicalTrials.gov results for NCT05132582 (opens in a new tab)· imported

Posted results as ClinicalTrials.gov prints them: primary outcome analyses and serious adverse event totals only. Registry facts, not reviewed by HealthTrade and not investment advice; filing-derived results are listed separately.

Publications listing HER2CLIMB-05 (1), newest first

  1. HER2CLIMB-05: A Phase III Study of Tucatinib Versus Placebo in Combination With Trastuzumab and Pertuzumab as First-Line Maintenance Therapy for HER2+ Metastatic Breast Cancer.

    Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2026 Jun 10

Citations from PubMed, U.S. National Library of Medicine; abstracts are not stored. A publication lists this study’s NCT number and may be a review that cites many studies.

NCT04499924ClinicalTrials.gov record for NCT04499924 (opens in a new tab)MOUNTAINEER-02Tucatinib, Trastuzumab, Ramucirumab, and Paclitaxel Versus Paclitaxel and Ramucirumab in Previously Treated HER2+ Gastroesophageal CancerPhase 2/3Completed17 (actual)17 Apr 2024 (actual) Yes First posted Results on ClinicalTrials.gov for NCT04499924 (opens in a new tab)

Posted results on ClinicalTrials.gov for MOUNTAINEER-02

Serious adverse events (From first dose of the study treatment (Day 1) up to 30 days after the last dose of study treatment (maximum treatment duration= 19.8 months, maximum follow-up duration up to 20.8 months)): Paclitaxel 60 mg/m^2 4 of 8; Paclitaxel 80 mg/m^2 5 of 9

Source: ClinicalTrials.gov results for NCT04499924 (opens in a new tab)· imported

Posted results as ClinicalTrials.gov prints them: primary outcome analyses and serious adverse event totals only. Registry facts, not reviewed by HealthTrade and not investment advice; filing-derived results are listed separately.

NCT03975647ClinicalTrials.gov record for NCT03975647 (opens in a new tab)A Study of Tucatinib vs. Placebo in Combination With Ado-trastuzumab Emtansine (T-DM1) for Patients With Advanced or Metastatic HER2+ Breast CancerPhase 3Active, not recruiting466 (actual)29 Jun 2023 (actual) Yes First posted Results on ClinicalTrials.gov for NCT03975647 (opens in a new tab)

Posted results on ClinicalTrials.gov for NCT03975647

  • Progression-Free Survival (PFS) as Per Response Evaluation Criteria in Solid Tumors (RECIST) Version (v)1.1 Based on Investigator Assessment (Months)
    • Tucatinib+ Ado-trastuzumab Emtansine vs Placebo+ Ado-trastuzumab Emtansine: Hazard Ratio (HR) 0.759 (95% CI 0.607 to 0.950), p-value 0.0163, Log Rank, other

Serious adverse events (From start of treatment up to 30 days after the last study treatment (approximately 43 months)): Placebo+ Ado-trastuzumab Emtansine 52 of 233; Tucatinib+ Ado-trastuzumab Emtansine 70 of 231

Source: ClinicalTrials.gov results for NCT03975647 (opens in a new tab)· imported

Posted results as ClinicalTrials.gov prints them: primary outcome analyses and serious adverse event totals only. Registry facts, not reviewed by HealthTrade and not investment advice; filing-derived results are listed separately.

Publications listing NCT03975647 (1), newest first

  1. Tucatinib and trastuzumab emtansine for patients with previously treated HER2-positive locally advanced and metastatic breast cancer: primary analysis of the randomized phase III trial HER2CLIMB-02.

    Annals of oncology : official journal of the European Society for Medical Oncology · 2026 Mar

Citations from PubMed, U.S. National Library of Medicine; abstracts are not stored. A publication lists this study’s NCT number and may be a review that cites many studies.

Source: ClinicalTrials.gov, U.S. National Library of Medicine. Posted results are shown as ClinicalTrials.gov prints them; results from company and journal sources are entered by editors and listed separately. Full result tables are on ClinicalTrials.gov.

Trial quality

About CT-VCA

Loading trial quality…

FDA actions

Original approvals and new-indication supplements for Tucatinib, newest first
ApplicationActionDateOutcomeReviewSource
NDA213411Action letter for NDA213411 (opens in a new tab) Supplement 10 EfficacyApprovedstandardDrugs@FDA via openFDA (opens in a new tab)
NDA213411Action letter for NDA213411 (opens in a new tab) Supplement 4 EfficacyApprovedpriorityDrugs@FDA via openFDA (opens in a new tab)
NDA213411Action letter for NDA213411 (opens in a new tab) Original 1 Type 1 - New Molecular EntityApprovedpriorityDrugs@FDA via openFDA (opens in a new tab)

Data provided by the U.S. Food and Drug Administration.

FDA recalls load here.

FDA drug shortages load here.

Orange Book patents load here.

FAERS adverse event counts load here.

Papers and preprints load here.

Community discussion loads here.

EU status (EMA)

Authorised

Tukysa (EMEA/H/C/005263)

Authorised
Therapeutic area
Breast Neoplasms;Neoplasm Metastasis
Marketing authorisation holder
Pfizer Europe MA EEIG
Active substance (INN)
tucatinib
ATC code
L01EH03
Latest EMA decision

Matched by active substance: EMA's INN or active substance equals this drug's name.

Source: European Medicines Agency (EMA), medicines data download. Licence: EMA re-use with acknowledgement. EMA medicines report 2026-10-26.

Related news

No recent headlines mention this drug.

Sources

Record updated .

Dates come from company and FDA disclosures and can change. Nothing on this page is investment advice.