TheraRadar
Data updated: May 26, 2026

TRAZIMERA (trastuzumab-qyyp)

HER2/Neu/cerbB2 Antagonists Genetically Validated
Oncology Approved 2019-03-11

TRAZIMERA is indicated for the treatment of Breast Cancer; Gastric Cancer; Gastroesophageal Junction Adenocarcinoma.

Source: FDA Label • Pfizer • HER2/neu Receptor Antagonist

How TRAZIMERA Works

TRAZIMERA targets the HER2 (or c-erbB2) proto-oncogene, which encodes a 185 kDa transmembrane receptor protein structurally related to the epidermal growth factor receptor. By binding to this receptor, the drug inhibits the proliferation of human tumor cells that overexpress HER2. Additionally, it acts as a mediator of antibody-dependent cellular cytotoxicity (ADCC). This immune-mediated response is preferentially exerted on cancer cells that overexpress HER2 compared to those that do not.

1
Indication
--
Phase 3 Trials
7
Years on Market

Details

Status
Prescription
First Approved
2019-03-11
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: TRASTUZUMAB-QYYP

TRAZIMERA Approval History

2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
4 FDA actions from 2019 to 2025
Aug 2025 SUPPL
Label · Labeling
May 2020 SUPPL
Label · Labeling
Jan 2020 SUPPL
Label · Labeling

What TRAZIMERA Treats

3 indications

TRAZIMERA is approved for 3 conditions since its original approval in 2019. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Breast Cancer
  • Gastric Cancer
  • Gastroesophageal Junction Adenocarcinoma
Source: FDA Label

TRAZIMERA Boxed Warning

CARDIOMYOPATHY, INFUSION REACTIONS, EMBRYO-FETAL TOXICITY, and PULMONARY TOXICITY WARNING: CARDIOMYOPATHY, INFUSION REACTIONS, EMBRYO-FETAL TOXICITY, and PULMONARY TOXICITY See full prescribing information for complete boxed warning Cardiomyopathy: Trastuzumab products can result in subclinical and clinical cardiac failure manifesting as CHF, and decreased LVEF, with greatest risk when administered concurrently with anthracyclines. Evaluate cardiac function prior to and during treatment. Discont...

TRAZIMERA Target & Pathway

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Target

HER2 (Human Epidermal Growth Factor Receptor 2) Growth Factor Receptor

A receptor tyrosine kinase that promotes cell growth and division. Approximately 20% of breast cancers overexpress HER2, leading to aggressive tumor growth. Targeting HER2 blocks these growth signals and can trigger immune-mediated destruction of cancer cells.

Pathway Context

HER2 forms dimers with other HER family members to activate growth signaling

HER3 (Human Epidermal Growth Factor Receptor 3)
EGFR (Epidermal Growth Factor Receptor) receptor

A receptor that triggers cell growth, proliferation, and survival when activated. Mutations or overexpression of EGFR drive many cancers, particularly lung cancer. Blocking EGFR stops the growth signals that fuel tumor progression.

Biosimilar for Herceptin

TRAZIMERA is a lower-cost alternative to Herceptin with no clinically meaningful differences. Requires prescriber approval to substitute.

TRAZIMERA Competitive Set

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Three rings of competition based on shared molecular targets and treated indications.

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

What's emerging in TRAZIMERA's indications

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Phase 3 candidates targeting molecules with no FDA-approved drug, in indications TRAZIMERA treats. First-in-class if their pivotal trials read out positive.

Drugs Similar to TRAZIMERA

3 of 20

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

HERZUMA
TRASTUZUMAB-PKRB
3 shared
CELLTRION INC
Shared indications:
Breast CancerGastric CancerGastroesophageal Junction Adenocarcinoma
KANJINTI
TRASTUZUMAB-ANNS
3 shared
Amgen
Shared indications:
Breast CancerGastric CancerGastroesophageal Junction Adenocarcinoma
OGIVRI
TRASTUZUMAB-DKST
3 shared
Viatris
Shared indications:
Breast CancerGastric CancerGastroesophageal Junction Adenocarcinoma
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

TRAZIMERA FDA Label Details

Indications & Usage

FDA Label (PDF)

TRAZIMERA is indicated for the treatment of Breast Cancer; Gastric Cancer; Gastroesophageal Junction Adenocarcinoma.

⚠️ BOXED WARNING

WARNING: CARDIOMYOPATHY, INFUSION REACTIONS, EMBRYO-FETAL TOXICITY, and PULMONARY TOXICITY WARNING: CARDIOMYOPATHY, INFUSION REACTIONS, EMBRYO-FETAL TOXICITY, and PULMONARY TOXICITY See full prescribing information for complete boxed warning Cardiomyopathy: Trastuzumab products can result in subclin...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.