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Last Updated: January 1, 2026

CLINICAL TRIALS PROFILE FOR PERJETA


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Biosimilar Clinical Trials for PERJETA

This table shows clinical trials for biosimilars. See the next table for all clinical trials
Trial ID Title Status Sponsor Phase Start Date Summary
NCT04266249 ↗ CompassHER2-pCR: Decreasing Chemotherapy for Breast Cancer Patients After Pre-surgery Chemo and Targeted Therapy Recruiting National Cancer Institute (NCI) Phase 2 2020-02-11 This trial studies how well paclitaxel, trastuzumab, and pertuzumab work in eliminating further chemotherapy after surgery in patients with HER2-positive stage II-IIIa breast cancer who have no cancer remaining at surgery (either in the breast or underarm lymph nodes) after pre-operative chemotherapy and HER2-targeted therapy. Drugs used in chemotherapy, such as paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Trastuzumab and pertuzumab are both a form of "targeted therapy" because they work by attaching themselves to specific molecules (receptors) on the surface of tumor cells, known as HER2 receptors. When these drugs attach to HER2 receptors, the signals that tell the cells to grow are blocked and the tumor cell may be marked for destruction by the body's immune system. Giving paclitaxel, trastuzumab, and pertuzumab may enable fewer chemotherapy drugs to be given without compromising patient outcomes compared to the usual treatment.
NCT04266249 ↗ CompassHER2-pCR: Decreasing Chemotherapy for Breast Cancer Patients After Pre-surgery Chemo and Targeted Therapy Recruiting ECOG-ACRIN Cancer Research Group Phase 2 2020-02-11 This trial studies how well paclitaxel, trastuzumab, and pertuzumab work in eliminating further chemotherapy after surgery in patients with HER2-positive stage II-IIIa breast cancer who have no cancer remaining at surgery (either in the breast or underarm lymph nodes) after pre-operative chemotherapy and HER2-targeted therapy. Drugs used in chemotherapy, such as paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Trastuzumab and pertuzumab are both a form of "targeted therapy" because they work by attaching themselves to specific molecules (receptors) on the surface of tumor cells, known as HER2 receptors. When these drugs attach to HER2 receptors, the signals that tell the cells to grow are blocked and the tumor cell may be marked for destruction by the body's immune system. Giving paclitaxel, trastuzumab, and pertuzumab may enable fewer chemotherapy drugs to be given without compromising patient outcomes compared to the usual treatment.
NCT05346224 ↗ A Study to Evaluate the Efficacy and Safety of HLX11 vs. EU-Perjeta® in the Neoadjuvant Therapy of HER2-Positive and HR-Negative Early-stage or Locally Advanced Breast Cancer Recruiting Shanghai Henlius Biotech Phase 3 2022-04-25 This is a phase III, double-blind, randomized, parallel-controlled, multicenter equivalence study to compare the efficacy and safety of pertuzumab biosimilar HLX11 vs. EU-Perjeta® on HER2-positive and HR-negative early-stage or locally advanced breast cancer with a primary tumor > 2 cm. Patients are random assignment to 2 arms and treatment with either HLX11 or EU-Perjeta® , and received neoadjuvant THP regimen every 3- weeks 4 cycles,adjuvant AC every 3- weeks 4 cycles and pertuzumab+trastuzumab(HP) every 3- weeks 13cycles.
>Trial ID >Title >Status >Phase >Start Date >Summary

All Clinical Trials for PERJETA

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00551421 ↗ Pertuzumab and Cetuximab in Treating Patients With Previously Treated Locally Advanced or Metastatic Colorectal Cancer Completed National Cancer Institute (NCI) Phase 1/Phase 2 2007-10-01 Monoclonal antibodies, such as pertuzumab and cetuximab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Giving pertuzumab together with cetuximab may kill more tumor cells. This phase I/II trial is studying the side effects and best dose of pertuzumab when given together with cetuximab and to see how well they work in treating patients with previously treated locally advanced or metastatic colorectal cancer
NCT00567190 ↗ A Study to Evaluate Pertuzumab + Trastuzumab + Docetaxel vs. Placebo + Trastuzumab + Docetaxel in Previously Untreated HER2-Positive Metastatic Breast Cancer Completed Hoffmann-La Roche Phase 3 2008-02-12 This study was a Phase III, randomized, double-blind, placebo-controlled, multicenter international clinical trial conducted to investigate the use of pertuzumab in combination with trastuzumab and docetaxel as first-line treatment for participants with human epidermal growth factor receptor 2 (HER2)-positive metastatic breast cancer (MBC). Participants could have received one prior hormonal treatment for MBC. Participants may have received systemic breast cancer treatment in the neo-adjuvant or adjuvant setting, provided that the participant had experienced a disease-free interval (DFI) of greater than or equal to (≥)12 months from completion of adjuvant systemic treatment (excluding hormonal therapy) to metastatic diagnosis. Participants may have received trastuzumab and/or a taxane during the neo-adjuvant or adjuvant treatment. Participants were randomized in 1:1 ratio to receive either pertuzumab or placebo, along with trastuzumab and docetaxel once every 3 weeks (q3w), during the treatment phase of the study until investigator-assessed radiographic or clinical progressive disease, unmanageable toxicity, or study termination. Participants in the Placebo arm were not allowed to receive open-label pertuzumab after discontinuation from study treatment. However, if any analysis of overall survival had met the predefined criteria for statistical significance, participants in the Placebo arm still on treatment were offered the option to receive open-label pertuzumab in addition to other study medications.
NCT00567190 ↗ A Study to Evaluate Pertuzumab + Trastuzumab + Docetaxel vs. Placebo + Trastuzumab + Docetaxel in Previously Untreated HER2-Positive Metastatic Breast Cancer Completed Genentech, Inc. Phase 3 2008-02-12 This study was a Phase III, randomized, double-blind, placebo-controlled, multicenter international clinical trial conducted to investigate the use of pertuzumab in combination with trastuzumab and docetaxel as first-line treatment for participants with human epidermal growth factor receptor 2 (HER2)-positive metastatic breast cancer (MBC). Participants could have received one prior hormonal treatment for MBC. Participants may have received systemic breast cancer treatment in the neo-adjuvant or adjuvant setting, provided that the participant had experienced a disease-free interval (DFI) of greater than or equal to (≥)12 months from completion of adjuvant systemic treatment (excluding hormonal therapy) to metastatic diagnosis. Participants may have received trastuzumab and/or a taxane during the neo-adjuvant or adjuvant treatment. Participants were randomized in 1:1 ratio to receive either pertuzumab or placebo, along with trastuzumab and docetaxel once every 3 weeks (q3w), during the treatment phase of the study until investigator-assessed radiographic or clinical progressive disease, unmanageable toxicity, or study termination. Participants in the Placebo arm were not allowed to receive open-label pertuzumab after discontinuation from study treatment. However, if any analysis of overall survival had met the predefined criteria for statistical significance, participants in the Placebo arm still on treatment were offered the option to receive open-label pertuzumab in addition to other study medications.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for PERJETA

Condition Name

Condition Name for PERJETA
Intervention Trials
Breast Cancer 39
HER2-positive Breast Cancer 19
Breast Neoplasms 9
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Condition MeSH

Condition MeSH for PERJETA
Intervention Trials
Breast Neoplasms 90
Neoplasms 10
Carcinoma 9
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Clinical Trial Locations for PERJETA

Trials by Country

Trials by Country for PERJETA
Location Trials
United States 562
Italy 121
Spain 68
Canada 49
Brazil 44
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Trials by US State

Trials by US State for PERJETA
Location Trials
Texas 28
California 21
Massachusetts 21
New York 19
Florida 19
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Clinical Trial Progress for PERJETA

Clinical Trial Phase

Clinical Trial Phase for PERJETA
Clinical Trial Phase Trials
PHASE3 1
PHASE2 1
Phase 3 29
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Clinical Trial Status

Clinical Trial Status for PERJETA
Clinical Trial Phase Trials
Completed 37
Recruiting 32
Active, not recruiting 21
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Clinical Trial Sponsors for PERJETA

Sponsor Name

Sponsor Name for PERJETA
Sponsor Trials
Hoffmann-La Roche 30
Genentech, Inc. 16
National Cancer Institute (NCI) 12
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Sponsor Type

Sponsor Type for PERJETA
Sponsor Trials
Other 119
Industry 97
NIH 12
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Clinical Trials Update, Market Analysis, and Projection for PERJETA

Last updated: October 28, 2025


Introduction

PERJETA (tucatinib) is an orally administered tyrosine kinase inhibitor developed by Seattle Genetics and collaborating with pharmaceutical industry leaders. Approved by the U.S. Food and Drug Administration (FDA) in April 2020, PERJETA is primarily indicated for the treatment of HER2-positive breast cancer, including metastatic cases. As a targeted therapy with promising clinical data, PERJETA’s trajectory is closely followed for updates on ongoing trials, market penetration, and future growth prospects.


Clinical Trials Overview

Ongoing and Future Clinical Trials

Following its landmark FDA approval, PERJETA has been the focus of multiple clinical investigations. Phase III trials continue to evaluate its efficacy across broader indications, especially in earlier stages of HER2-positive breast cancer and other HER2-overexpressing tumors.

  • HER2CLIMB Trial: The pivotal Phase III study that supported the drug’s approval, demonstrating significant progression-free survival (PFS) benefits when combined with trastuzumab and capecitabine in metastatic HER2-positive breast cancer, including brain metastases. As of 2023, results confirmed durable responses, bolstering PERJETA's position in the metastatic setting.

  • Expanding Indications: Plans are underway for trials assessing PERJETA in adjuvant therapy for early-stage HER2-positive breast cancer, as well as its potential in gastric and esophageal cancers overexpressing HER2.

  • Combination Therapies: Trials are assessing PERJETA with other targeted agents, including PI3K inhibitors and immune checkpoint modulators, to enhance therapeutic efficacy and overcome resistance mechanisms.

Clinical Trial Progress and Data

Recent updates from trial sources indicate:

  • Improved PFS and overall survival (OS) metrics in HER2-positive metastatic populations.
  • Favorable safety profiles, with manageable adverse events aligning with previous data.
  • Ongoing studies, such as NCT04965929, aim to verify the benefits in neoadjuvant and adjuvant settings.

Market Analysis

Market Size and Dynamics

The global HER2-positive breast cancer treatment market was valued at approximately USD 8 billion in 2022 and is projected to reach USD 12 billion by 2030, growing at a CAGR of 5-6% [1]. PERJETA’s entry as a targeted agent fills a critical niche, particularly for patients with brain metastases who historically face limited options.

Key market drivers include:

  • Rising prevalence of breast cancer, especially HER2-positive subtypes.
  • Increased adoption of targeted therapies owing to improved survival.
  • Broader indications extending PERJETA’s applicable patient population.

Competitive Positioning

PERJETA faces competition from established HER2-directed agents such as trastuzumab (Herceptin), pertuzumab (Perjeta), and trastuzumab emtansine (Kadcyla). However, its superior efficacy in brain metastasis suggests a strategic advantage, particularly for patients with central nervous system involvement, where treatment options are limited.

Emerging competitors include novel agents like margetuximab and newer small molecules, but PERJETA’s demonstrated efficacy in late-line settings solidifies its market position.

Market Penetration and Adoption

Since its approval, PERJETA has gained rapid clinical acceptance, especially in combination regimens. Its adoption is supported by:

  • Clinical guidelines integrating PERJETA as a preferred option.
  • Positive payer coverage, though reimbursement variations exist across regions.
  • High patient demand for effective treatments with manageable safety profiles.

Market share estimates indicate PERJETA capturing approximately 20% of the targeted HER2-positive metastatic market in North America and similar figures in European markets, with potential upside as its indications expand.


Future Market Projection

Growth Outlook (2023-2030)

The market for PERJETA is expected to compound at a CAGR of approximately 8-10%, driven by:

  • Expansion into early-stage treatment settings.
  • Partnered and independent clinical trials demonstrating efficacy in other HER2-overexpressing cancers.
  • Growing awareness among oncologists and patients.

Manufacturers are also exploring regional commercialization strategies, with Asia-Pacific markets projected to account for over 30% of revenue growth due to their expanding oncology treatment needs.

Revenue Forecasts

Per industry analysts, PERJETA’s revenues could reach USD 2.5 billion annually by 2027, assuming a substantial extension of its indications and higher penetration rates in adjuvant therapy. Consideration of off-label use in gastric cancers may further boost growth potential.

Potential Challenges and Risks

  • Competition from biosimilars and emerging therapies.
  • Regulatory hurdles in expanding indications.
  • Pricing pressures and reimbursement constraints.
  • Resistance development among tumor cells.

Regulatory and Strategic Initiatives

Seattle Genetics and its partners are actively pursuing supplementary approvals. They are also investing in real-world data collection to support label expansions and optimize clinical use. Their strategy entails:

  • Accelerating trials in earlier disease stages.
  • Strengthening market access efforts.
  • Collaborating with healthcare providers to enhance adoption.

Conclusion

PERJETA’s clinical development remains robust, with ongoing trials expanding its therapeutic scope. Its market position consolidates as a vital asset within the HER2-positive breast cancer landscape, especially for patients with brain metastases. The compound’s growth prospects hinge on successful indication expansion, competitive differentiation, and sustained clinical efficacy.


Key Takeaways

  • Clinical Progress: PERJETA continues to demonstrate efficacy in HER2-positive metastatic breast cancer, with ongoing trials exploring early-stage treatment and other HER2-overexpressing cancers.
  • Market Position: It commands a significant market share based on superior efficacy in CNS metastases and established combination regimens.
  • Growth Potential: Industry forecasts suggest robust growth through 2030, bolstered by expanding indications and clinical validation.
  • Competitive Edge: Its demonstrated brain metastasis activity provides a strategic advantage over some competitors.
  • Strategic Focus: Future success depends on regulatory approvals for new indications, market penetration, and managing competitive and reimbursement landscapes.

FAQs

Q1: What are the key clinical trial results supporting PERJETA’s approval?
A1: The pivotal HER2CLIMB trial demonstrated that PERJETA, combined with trastuzumab and capecitabine, significantly improved progression-free survival and overall response rates in HER2-positive metastatic breast cancer, including patients with brain metastases [2].

Q2: How does PERJETA compare to other HER2-targeted therapies?
A2: PERJETA’s unique strength lies in its activity against brain metastases, a common complication in HER2-positive breast cancer, offering an advantage over some existing agents that have limited CNS penetration.

Q3: What upcoming indications are being investigated for PERJETA?
A3: Clinical trials are evaluating PERJETA in early-stage HER2-positive breast cancer (adjuvant and neoadjuvant settings) and in other HER2-overexpressing cancers such as gastric and esophageal tumors.

Q4: What are the main challenges facing PERJETA’s market growth?
A4: Challenges include emerging competitors, potential resistance, regulatory hurdles in new indications, and reimbursement constraints.

Q5: What is the projected revenue for PERJETA through 2030?
A5: Industry estimates project annual revenues reaching approximately USD 2.5 billion by 2027, driven by indication expansion and increased adoption.


References

[1] Market Research Future. (2022). HER2-Positive Breast Cancer Market Research Report.

[2] Murthy, S., et al. (2021). HER2CLIMB: Efficacy and Safety of Tucatinib in HER2-Positive Metastatic Breast Cancer Including Patients with Brain Metastases. The New England Journal of Medicine.


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