HER2+ Breast Cancer

Here is your cheat sheet to all therapeutic options that were cleared by the FDA in December 2025 spanning tumor types.

The FDA approved subcutaneous mosunetuzumab for relapsed/refractory follicular lymphoma and granted a pair of breakthrough therapy designations.

Post-neoadjuvant T-DXd has received breakthrough therapy designation from the FDA for HER2-positive early breast cancer with residual invasive disease.

The FDA approved T-DXd plus pertuzumab in HER2+ breast cancer, subcutaneous amivantamab in EGFR+ NSCLC, and rucaparib in BRCA-mutated mCRPC.

Breast oncology experts discuss SABCS 2025 data from HER2CLIMB-05 and lidERA that may influence maintenance therapy and adjuvant endocrine care.

The FDA has expanded the indications of 2 assays to identify patients with HER2+ breast cancer for treatment with T-DXd.

The FDA approved T-DXd plus pertuzumab for the first-line treatment of unresectable or metastatic HER2-positive breast cancer.

T-DXd yielded iDFS improvements in HER2-positive early breast cancer with residual invasive disease, irrespective of HER2 expression of neoadjuvant chemotherapy type.

Tucatinib plus HP improved median investigator-assessed PFS by 8.6 months as first-line maintenance vs HP alone in HER2-positive metastatic breast cancer.

Frontline treatment with T-DXd plus pertuzumab improved QOL vs THP in patients with HER2-positive advanced or metastatic breast cancer.

Leading experts highlight key HER2-positive studies ahead of SABCS 2025.

In case you missed any, read a recap of every episode of OncLive On Air that aired in November 2025.

Here is your cheat sheet to all therapeutic options that were cleared by the FDA in November 2025 spanning tumor types.

T-DM1 showed the lowest LVEF decline vs other HER2-targeted regimens, underscoring key differences in cardiac safety.

HER2-directed CAR T-cell therapy was safe in patients with brain/leptomeningeal metastases from HER2-positive breast cancer.

The top 5 OncLive TV videos of the week cover insights in breast cancer, uveal melanoma, prostate cancer, and multiple myeloma.

Yuan Yuan, MD, PhD, expands on several key studies informing the current and evolving use of ADCs and dual-pathway targeting in HER2-positive breast cancer.

The FDA has approved pertuzumab-dpzb as the first interchangeable biosimilar for pertuzumab across several indications in HER2-positive breast cancer.

The top 5 OncLive TV videos of the week cover insights in breast cancer and ovarian cancer.

HER2DX low-risk scores were associated with improved 10-year RFS and OS outcomes in older patients with HER2-positive early-stage breast cancer.

In a recent Peer Exchange, breast cancer experts discussed updates from ESMO 2025, including practice-informing data with antibody-drug conjugates.

Revisit the top data and presentations in breast cancer from the 2025 ESMO Congress.

Trastuzumab rezetecan reduced the risk of disease progression or death by 78% vs pyrotinib plus capecitabine in pretreatedHER2+ advanced breast cancer,

A data safety monitoring board recommended the continuation of a study of Bria-IMT plus immune checkpoint inhibition in metastatic breast cancer.

T-DXd plus pertuzumab generated consistent PFS benefits among HER2+ breast cancer subgroups.