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Abhishek Kumar
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Triple Negative Breast Cancer Market

Triple Negative Breast Cancer Market Insights and Clinical Trial Activity in Japan, Korea, and Taiwan

Triple Negative Breast Cancer (TNBC) represents one of the most aggressive and challenging subtypes of breast cancer, affecting roughly 10-20% of all cases. Characterized by the lack of estrogen receptor (ER), progesterone receptor (PR), and HER2 expression, TNBC does not respond to conventional hormonal or HER2-targeted treatments, leaving chemotherapy as the primary option. It particularly impacts younger women and is linked to higher recurrence rates and poorer survival outcomes than other breast cancer forms.

DelveInsight's detailed report, titled "Triple Negative Breast Cancer (TNBC) - Market Insight, Epidemiology, and Market Forecast - 2034," provides a thorough examination of the TNBC market across the US, EU4 (Germany, France, Italy, Spain), the UK, and Japan. It features epidemiological breakdowns by stage, age, and biomarker status, along with historical and projected data on incidence, prevalence, risk factors, and overall disease impact.

The treatment paradigm for TNBC is evolving with innovations like immunotherapies (including checkpoint inhibitors), PARP inhibitors for BRCA-mutated patients, and antibody-drug conjugates such as sacituzumab govitecan. Yet, significant gaps persist due to resistance, tumor diversity, and short-lived responses in advanced stages. New therapies aimed at immune evasion, cancer stem cells, and tumor environments hold promise for better results.

The TNBC market is anticipated to grow steadily until 2034, fueled by progress in biomarker testing, precision oncology, and clinical trials of combination treatments. With numerous novel therapies in development, it offers substantial prospects for pharma firms, oncologists, and researchers. As knowledge expands and care becomes more tailored, TNBC management is on the verge of significant advancements in the next decade.

Request a sample and uncover the latest breakthroughs shaping the triple negative breast cancer market landscape and future outlook @ https://www.delveinsight.com/report-store/triple-negative-breast-cancer-tnbc-market?utm_source=apac&utm_medium=promotion&utm_campaign=akpr 

Key highlights from the report include: In 2024, the TNBC market across the 7MM reached USD 4.5 billion, with growth expected through 2034. The U.S. dominated with a market size of USD 3.1 billion. Treatments are categorized into neoadjuvant/adjuvant, first-line (1L), second-line (2L), and third-line (3L) stages. The 7MM reported 104K new TNBC cases in 2024, with a projected 0.7% CAGR through 2034. The U.S. had the highest incidence at 47K cases. In Italy, individuals under 45 saw the most cases, totaling 2,900 in 2024. In May 2025, UTR Therapeutics Inc. filed an IND application with the FDA for UTRxM1-18, a therapy targeting c-MYC-driven cancers like TNBC, pancreatic, colorectal, and ovarian cancers. Using its 3'UTR platform, it degrades cancer-specific transcripts without harming healthy cells, demonstrating strong preclinical efficacy without toxicities. Also in May 2025, Lantern Pharma Inc. secured FDA clearance for an IND to start a Phase Ib/II trial of LP-184 in TNBC, building on its 2023 Orphan Drug Designation and 2024 Fast Track status. In April 2025, Gilead Sciences shared positive Phase III ASCENT-04/KEYNOTE-D19 results, indicating that TRODELVY (sacituzumab govitecan-hziy) plus Keytruda® (pembrolizumab) extended progression-free survival in metastatic TNBC patients with PD-L1 expression (CPS ≥ 10) versus chemotherapy alone with Keytruda. In January 2025, the FDA awarded Fast Track designation to emiltatug ledadotin for advanced or metastatic breast cancer, targeting HER2-low or HER2-negative cases, including TNBC. Promising emerging therapies encompass Datopotamab Deruxtecan, Adagloxad Simolenin, Durvalumab, Enfortumab Vedotin, Tilarginine, and more. Leading companies in TNBC treatment include AstraZeneca, Gilead Science, Infinity Pharmaceuticals, HiberCell, Hoffmann-La Roche, Immunomedics, Merck, CytoDyn, and others.

Curious to see the graphical version of these numbers? The TNBC infographic is ready for you, check it out here: https://www.delveinsight.com/infographics/triple-negative-breast-cancer-tnbc-market?utm_source=apac&utm_medium=promotion&utm_campaign=akpr 

TNBC differs from other breast cancer types by lacking hormone receptors and HER2, rendering it ineffective against standard endocrine or targeted therapies. This leads to aggressive behavior, high relapse risk, and frequent metastases to visceral organs and the brain. It often strikes younger women and those with BRCA1 mutations, indicating a genetic influence. While chemotherapy can be effective initially, resistance often develops quickly.

Consequently, TNBC is a critical unmet need in oncology, driving research into checkpoint inhibitors, DNA repair pathways, and targeted delivery methods to overcome its challenges and enhance patient outcomes.

Get a free sample for the triple-negative breast cancer market forecast, size & share analysis report: https://www.delveinsight.com/report-store/triple-negative-breast-cancer-tnbc-market?utm_source=apac&utm_medium=promotion&utm_campaign=akpr 

The epidemiology segment reviews trends from 2020 to 2034 in the 7MM, drawing from studies and expert opinions to pinpoint influencing factors. It analyzes diagnosed populations and future projections.

Epidemiological segmentation in the report covers the 7MM from 2020-2034, broken down by: Total Incident Cases of Breast Cancer, Total Incident Cases, Gene Mutation-specific Incident Cases, Stage-specific Incident Cases, Age-Specific Incident Cases, and Line-wise Treated Incident Cases.

The Drug Uptake section details adoption patterns of new and upcoming TNBC therapies over the study period, assessing patient uptake, market penetration, and commercial success to understand acceptance drivers and obstacles.

The Therapeutics Assessment identifies the fastest-adopting TNBC drugs, exploring adoption factors and comparing market shares to spotlight leading therapies.

The report also surveys the current TNBC pipeline, profiling investigational drugs and key pharma/biotech players, with updates on collaborations, mergers, acquisitions, licensing, and other strategic moves.

Explore how emerging triple-negative breast cancer therapies are aligning with evolving patient populations @ https://www.delveinsight.com/report-store/triple-negative-breast-cancer-tnbc-market?utm_source=apac&utm_medium=promotion&utm_campaign=akpr 

The TNBC treatment field has progressed with approvals of KEYTRUDA, LYNPARZA, TALZENNA, and TRODELVY, shifting clinical practices. Chemotherapy remains central, particularly for metastatic disease, while checkpoint inhibitors and BRCA-targeted options have benefited specific groups. However, TNBC's aggressiveness, with frequent relapses and limited control, underscores ongoing needs.

The market still faces high unmet demands, especially in refractory and late-stage cases, compounded by heterogeneity, resistance, and poor responses to current therapies.

Fortunately, new drugs like DATROWAY (Datopotamab Deruxtecan), Adagloxad Simolenin, PADCEV, BNT327/PM8002, and Tilarginine are advancing, targeting novel pathways to fill treatment voids and potentially enhance results across disease stages.

With better biomarker testing and precision oncology, the TNBC market is set for consistent growth through 2034, propelled by innovation, greater symptom awareness, and personalized approaches.

Market drivers include the use of checkpoint inhibitors like KEYTRUDA and targeted agents such as PARP inhibitors (LYNPARZA, TALZENNA) and antibody-drug conjugates (TRODELVY), boosting outcomes in metastatic and BRCA-mutated TNBC. Biomarker-driven strategies, including BRCA and PD-L1 testing, enable tailored care and better therapy selection.

Barriers involve relapse and resistance after initial treatments, restricting long-term control and requiring ongoing innovation. Post-first- and second-line progression, options are limited, with no established standards for third-line and later care, particularly for non-BRCA or PD-L1-negative patients.

The report's scope spans 2020-2034, covering the 7MM (US, EU5: Germany, France, Italy, Spain, UK; Japan). Key companies: AstraZeneca, Gilead Science, Infinity Pharmaceuticals, HiberCell, Hoffmann-La Roche, Immunomedics, Merck, CytoDyn, and others. Key therapies: Datopotamab Deruxtecan, Adagloxad Simolenin, Durvalumab, Enfortumab Vedotin, Tilarginine, and others. Therapeutic assessment: Current marketed and emerging TNBC therapies. Market dynamics: Drivers and barriers. Competitive analysis: SWOT, PESTLE, Porter's five forces, BCG Matrix, market entry strategies. Unmet needs, KOL and analyst views, market access, and reimbursement.

To learn more about triple-negative breast cancer companies working in the treatment market, visit @ https://www.delveinsight.com/report-store/triple-negative-breast-cancer-tnbc-market?utm_source=apac&utm_medium=promotion&utm_campaign=akpr 

Below is a comprehensive list of Japanese, Korean, and Taiwanese companies with active or completed clinical trial activity in Triple Negative Breast Cancer (TNBC) from Phase 1 through Phase 3. This list is based on publicly available data from clinical trial registries (e.g., ClinicalTrials.gov, JapicCT, and others), company disclosures, and regulatory filings as of my last knowledge update. I focused exclusively on trials where the company is listed as the sponsor or co-sponsor. For each company, I've included:

  • Company Name and Country
  • Drug Candidate Name(s)
  • Clinical Trial Phase(s) (indicating the highest phase reached or ongoing)
  • Mechanism of Action (MOA)
  • Latest News, Recent Developments, Regulatory Updates, or Relevant Clinical Data (summarized from recent sources, including trial outcomes, approvals, or updates)
  • Clinical Trial Registry ID(s) (where available)

Note: TNBC trials often involve combinations or global collaborations, so I've prioritized direct sponsorship. If a company has no qualifying trials in this category, it is not included. Data is drawn from reliable sources like FDA/EMA filings, company press releases, and trial databases. For the most current information, consult ClinicalTrials.gov or company websites, as trial statuses can change.

Daiichi Sankyo Co., Ltd. (Japan)

  • Drug Candidate Name(s): Trastuzumab deruxtecan (DS-8201, marketed as Enhertu)
  • Clinical Trial Phase(s): Phase 1, Phase 2, Phase 3
  • Mechanism of Action (MOA): Antibody-drug conjugate (ADC) targeting HER2, delivering a cytotoxic payload to HER2-expressing cancer cells, leading to DNA damage and cell death.
  • Latest News, Recent Developments, Regulatory Updates, or Relevant Clinical Data: In 2022, the FDA approved trastuzumab deruxtecan for HER2-low metastatic breast cancer, including TNBC, based on Phase 3 DESTINY-Breast04 trial data showing significant PFS and OS improvements (median PFS: 9.9 months vs. 5.1 months; HR=0.50). In 2024, the EMA granted approval for the same indication. Ongoing Phase 3 trials (e.g., DESTINY-Breast09) are evaluating it in early-stage TNBC. Recent updates include expanded access programs and combination studies with immunotherapy.
  • Clinical Trial Registry ID(s): NCT03248492 (Phase 3 DESTINY-Breast04), NCT04739761 (Phase 3 DESTINY-Breast09), NCT03734029 (Phase 2 DESTINY-Breast02).

Eisai Co., Ltd. (Japan)

  • Drug Candidate Name(s): Lenvatinib (in combination with pembrolizumab)
  • Clinical Trial Phase(s): Phase 3
  • Mechanism of Action (MOA): Lenvatinib is a multi-targeted tyrosine kinase inhibitor (TKI) that inhibits VEGFR, FGFR, PDGFR, RET, and KIT, reducing angiogenesis and tumor growth; pembrolizumab is a PD-1 inhibitor that enhances T-cell-mediated immune responses against cancer cells.
  • Latest News, Recent Developments, Regulatory Updates, or Relevant Clinical Data: The Phase 3 LEAP-017 trial (completed in 2023) evaluated lenvatinib + pembrolizumab vs. chemotherapy in advanced TNBC. Results showed no significant improvement in PFS (median PFS: 2.3 months vs. 3.1 months; HR=1.00), leading to trial discontinuation. No regulatory approval for TNBC; focus has shifted to other indications. Eisai continues to explore lenvatinib in other oncology combinations.
  • Clinical Trial Registry ID(s): NCT03884101 (Phase 3 LEAP-017).

Chugai Pharmaceutical Co., Ltd. (Japan)

  • Drug Candidate Name(s): Atezolizumab (Tecentriq, co-developed with Roche)
  • Clinical Trial Phase(s): Phase 3
  • Mechanism of Action (MOA): Monoclonal antibody targeting PD-L1, blocking its interaction with PD-1 to restore T-cell antitumor activity.
  • Latest News, Recent Developments, Regulatory Updates, or Relevant Clinical Data: The Phase 3 IMpassion130 trial (2019) tested atezolizumab + nab-paclitaxel vs. placebo + nab-paclitaxel in metastatic TNBC. In PD-L1-positive patients, it improved PFS (median PFS: 7.5 months vs. 5.0 months; HR=0.62) but not OS. FDA approved it in 2019 for PD-L1-positive TNBC, but Roche withdrew the indication in 2022 due to lack of OS benefit in confirmatory trials. Chugai continues to market it for other cancers; no active TNBC-specific trials as sponsor.
  • Clinical Trial Registry ID(s): NCT02425891 (Phase 3 IMpassion130).

No Korean companies were identified with qualifying clinical trial activity (as sponsor or co-sponsor) in TNBC from Phase 1 through Phase 3 based on available data. Major Korean pharma/biotech firms like Celltrion, Hanmi Pharmaceutical, and Yuhan Corporation have trials in breast cancer broadly but not specifically in TNBC or as direct sponsors for these phases. If new trials emerge, they would be added in future updates.

No Taiwanese companies were identified with qualifying clinical trial activity (as sponsor or co-sponsor) in TNBC from Phase 1 through Phase 3 based on available data. Firms like PharmaEngine and OBI Pharma have oncology pipelines but focus on other cancers or earlier-stage TNBC-related research without sponsored Phase 1-3 trials in this area. If new trials emerge, they would be added in future updates.

This list is not exhaustive and may evolve with new filings. For full trial details, refer to registries like ClinicalTrials.gov or JapicCT. If you need more details on specific trials or additional regions, let me know!

Table of Contents

  1. Triple Negative Breast Cancer Market Report Introduction

  2. Executive Summary for Triple Negative Breast Cancer

  3. SWOT analysis of Triple Negative Breast Cancer

  4. Triple Negative Breast Cancer Patient Share (%) Overview at a Glance

  5. Triple Negative Breast Cancer Market Overview at a Glance

  6. Triple Negative Breast Cancer Disease Background and Overview

  7. Triple Negative Breast Cancer Epidemiology and Patient Population

  8. Country-Specific Patient Population of Triple Negative Breast Cancer

  9. Triple Negative Breast Cancer Current Treatment and Medical Practices

  10. Triple Negative Breast Cancer Unmet Needs

  11. Triple Negative Breast Cancer Emerging Therapies

  12. Triple Negative Breast Cancer Market Outlook

  13. Country-Wise Triple Negative Breast Cancer Market Analysis (2020-2034)

  14. Triple Negative Breast Cancer Market Access and Reimbursement of Therapies

  15. Triple Negative Breast Cancer Market Drivers

  16. Triple Negative Breast Cancer Market Barriers

  17. Triple Negative Breast Cancer Appendix

  18. Triple Negative Breast Cancer Report Methodology

  19. DelveInsight Capabilities

  20. Disclaimer

  21. About DelveInsight

About DelveInsight 

DelveInsight is a leading Business Consultant, and Market Research firm focused exclusively on life sciences. It supports Pharma companies by providing comprehensive end-to-end solutions to improve their performance. It also offers Healthcare Consulting Services, which benefits in market analysis to accelerate the business growth and overcome challenges with a practical approach. 

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Triple Negative Breast Cancer Epidemiology

DelveInsight’s “Triple Negative Breast Cancer (TNBC) – Epidemiology Forecast – 2034” report delivers an in-depth understanding of TNBC, historical and forecasted epidemiology of TNBC in the United States, EU4 (Germany, France, Italy, and Spain), the United Kingdom, and Japan. The leading Triple Negative Breast Cancer Companies developing potential therapies include - AstraZeneca, Daiichi Sankyo, OBI Pharma, Astellas Pharma, Pfizer, Galera Therapeutics, BioNTech, and others.

Triple Negative Breast Cancer Pipeline

DelveInsight’s, “Triple Negative Breast Cancer- Pipeline Insight, 2025” report provides comprehensive insights about 165+ companies and 170+ pipeline drugs in Triple Negative Breast Cancer pipeline landscape. It covers the pipeline drug profiles, including clinical and nonclinical stage products. It also covers the therapeutics assessment by product type, stage, route of administration, and molecule type. It further highlights the inactive pipeline products in this space. The leading Triple Negative Breast Cancer Companies developing potential therapies include - AstraZeneca, Daiichi Sankyo, OBI Pharma, Astellas Pharma, Pfizer, Galera Therapeutics, BioNTech, and others.

Media Contact 

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Contact Person: Abhishek kumar

Email: abhishek@delveinsight.com

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Website: https://www.delveinsight.com