Trastuzumab for Breast Cancer: 107 Real Stories

107 stories match breast cancer and trastuzumab. 103 of them mention targeted therapy.

Suzi, who was diagnosed with Breast CancerBreast Cancer

Breast Cancer: Suzi's Patient Story

Patient Info: Suzi, Female

Suzi completed lumpectomy, weekly chemotherapy, and radiation and remained on Herceptin every 3 weeks through September 2025. She had not yet been declared to have no evidence of disease.

breastcancer.org
OutcomeCare Ongoing
Leftfootforward, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HER2-Positive Breast Cancer: Leftfootforward's Survivor Story

Patient Info: Leftfootforward, Female, Under 40 | Stage IV

Biomarkers: HER2-positive

Metastatic Site: Brain | Liver

Leftfootforward was diagnosed with Stage IIB HER2-positive breast cancer in 2010 and metastatic brain/liver disease in 2012; after systemic therapy, Gamma Knife, craniotomy for necrotic tissue, partial liver lobectomy, and resumed Herceptin, her latest scans showed no evidence of disease.

BreastCancer.org (ES)
OutcomeCancer-Free / NED
Frédérique, who was diagnosed with Stage II Breast CancerBreast Cancer

Stage II HER2-Positive Breast Cancer: Frédérique's Survivor Story

Patient Info: Frédérique, Female, 40s | Stage II

Biomarkers: HER2-positive

Frédérique was listed as having complete remission after Herceptin/trastuzumab treatment for HER2-positive Stage II breast cancer.

Fondation ARC
OutcomeCancer-Free / NED
Pilar, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HER2-Positive Breast Cancer: Pilar's Patient Story

Patient Info: Pilar, Female, 40s | Stage IV

Biomarkers: Hormone receptor-positive; HER2-positive

Pilar was living with metastatic hormone receptor-positive, HER2-positive breast cancer, continuing systemic treatment with Zoladex, aromatase inhibitors, trastuzumab, and pertuzumab, and managing side effects with rehabilitation support.

MatchTrial Historias Reales
OutcomeLiving With Cancer
Greta, who was diagnosed with Breast CancerBreast Cancer

Breast Cancer: Greta's Survivor Story

Patient Info: Greta Tietze-Stein, Female, 50s

Greta completed breast-conserving surgery, chemotherapy, radiation, trastuzumab antibody therapy, and hormone therapy, and continued follow-up while managing fear of another finding and rebuilding life around family, faith, and self-care.

Krankheitserfahrungen.de
OutcomeSurvivorship / Completed Treatment
A patient, who was diagnosed with Stage IV Breast CancerBreast Cancer

How Learning To Ask For Help Can Make Life With MBC Easier

Patient Info: Anonymized, Female, Under 40 | Stage IV

Biomarkers: Not explicitly reported; HER2-targeted treatment with Herceptin and Tykerb reported

Metastatic Site: Brain; liver

Living with Stage IV metastatic breast cancer involving brain and liver; latest scans showed no evidence of disease, and she reported spending most of her Stage IV life in NED status.

breastcancer.org
OutcomeCancer-Free / NED
Genevieve, who was diagnosed with Breast CancerBreast Cancer

Breast Cancer: Genevieve's Survivor Story

Patient Info: Genevieve, Female, 40s

Biomarkers: 1987 tumor not hormone-receptive; 2017 tumor hormone-receptive. 2022 full marker panel not stated.

After breast cancer episodes beginning in 1987, another tumor in 2017, and cancer found again in 2022, PET scans every 3-4 months were clear and she described herself as in remission again as of May 2025.

breastcancer.org
OutcomeCancer-Free / NED
Jim, who was diagnosed with Breast CancerBreast Cancer

HER2-Positive Breast Cancer: Jim's Patient Story

Patient Info: Jim Keegan, Male, 70+

Biomarkers: HER2-positive; BRCA1/BRCA2 negative

Jim completed surgery, chemotherapy and 1 year of Herceptin for early-stage HER2-positive male breast cancer, then continued tamoxifen and yearly MSK surveillance while advocating for male breast cancer awareness.

Memorial Sloan Kettering
OutcomeCare Ongoing
Jennifer, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HER2-Positive Breast Cancer: Jennifer's Patient Story

Patient Info: Jennifer Feinberg, Female, 40s | Stage IV

Biomarkers: HER2-positive

Metastatic Site: brain

8+ years after her initial breast cancer diagnosis, she was living with metastatic HER2-positive breast cancer with brain metastases and receiving trastuzumab as her tenth line of treatment.

Dana-Farber
OutcomeLiving With Cancer
A patient, who was diagnosed with Stage III Invasive Ductal CarcinomaBreast Cancer

HER2-positive breast cancer complicated by severe anemia during chemotherapy

Patient Info: Anonymized, female, 40s | Stage III

Biomarkers: ER-negative; PR-negative; HER2-positive; germline BRCA1 likely pathogenic mutation

At 4.5-year follow-up, she remained free of breast-cancer recurrence and had no recurrence of the severe treatment-related anemia.

PubMed Central
OutcomeCancer-Free / NED
A patient, who was diagnosed with Stage II Breast CancerBreast Cancer

HER2-Positive Breast Cancer Treatment Followed by Multiple Myeloma

Patient Info: Anonymized, female, 50s | Stage II

Biomarkers: ER-negative; PR-negative; HER2 3+; Ki-67 70%

Postoperative imaging showed no breast cancer recurrence or distant metastasis, and the breast cancer was described as stable when a separate multiple myeloma diagnosis was made.

PubMed Central
OutcomeCancer-Free / NED
Alison, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HR-Positive Breast Cancer: Alison's Survivor Story

Patient Info: Alison, Female, Under 40 | Stage IV

Biomarkers: ER-positive; PR-positive; HER2-positive

Metastatic Site: Cervical/neck lymph nodes

Alison reported complete remission since August 2017 while continuing intermittent maintenance chemotherapy, most recently 1 month of treatment followed by 2 months off.

The Patient Story
OutcomeLiving With Cancer / Remission
Stefanie, who was diagnosed with Stage III Invasive Ductal CarcinomaBreast Cancer

Stage III HR-Positive Invasive Ductal Carcinoma: Stefanie's Survivor Story

Patient Info: Stefanie, Female | Stage III

Biomarkers: ER-positive, PR-positive and HER2-positive

Stefanie completed chemotherapy, breast-conserving surgery, prolonged Herceptin and 30 radiation treatments, then moved into survivorship while still adjusting to the lasting effects of treatment.

The Patient Story
OutcomeTreatment Completed / Survivorship
Shari, who was diagnosed with Stage IV Invasive Ductal CarcinomaBreast Cancer

Stage IV HR-Positive Invasive Ductal Carcinoma: Shari's Patient Story

Patient Info: Shari S., Female | Stage IV

Biomarkers: ER-positive, PR-positive and HER2-positive; no inherited cancer mutation was identified

Metastatic Site: Brain; other initial metastatic sites were not named

Systemic imaging after chemotherapy showed no active disease, but brain metastases later required stereotactic radiation. Shari remained stage 4, continued Herceptin every 3 weeks and underwent brain MRI every 3–4 months.

The Patient Story
OutcomeLiving With Cancer / Ongoing Therapy
Genoa, who was diagnosed with Stage III Breast CancerBreast Cancer

Stage III HER2-Positive Breast Cancer: Genoa's Survivor Story

Patient Info: Genoa M., Female | Stage III

Biomarkers: HER2-positive; ER-positive

As of June 2026, Genoa had completed treatment for Stage III HER2-positive, ER-positive breast cancer with neoadjuvant Taxotere/carboplatin/trastuzumab, lumpectomy, and radiation, and was focused on survivorship and rebuilding life after treatment.

The Patient Story
OutcomeSurvivorship / Completed Treatment
Renee, who was diagnosed with Stage IV Invasive Ductal CarcinomaBreast Cancer

Stage IV HER2-Positive Invasive Ductal Carcinoma: Renee's Patient Story

Patient Info: Renee N., Female | Stage IV

Biomarkers: HER2-positive

Metastatic Site: Brain

As of June 2026, Renee’s public story described living with metastatic HER2-positive breast cancer as a chronic illness, after brain radiation and while on Kadcyla every 3 weeks with stable scans reported in December 2019 and early March 2020.

The Patient Story
OutcomeLiving With Cancer
Rach, who was diagnosed with Stage II Breast CancerBreast Cancer

Stage II HR-Positive Breast Cancer: Rach's Patient Story

Patient Info: Rach D., Female, Under 40 | Stage II

Biomarkers: ER-positive; PR-positive; HER2-positive

As of June 2026, Rach described Stage II triple-positive breast cancer treated with fertility preservation, 6 rounds of neoadjuvant TCHP including Herceptin, Zoladex ovarian suppression, and double mastectomy with reconstruction.

The Patient Story
OutcomeCare Ongoing
A patient, who was diagnosed with Stage IV Invasive Lobular CarcinomaBreast Cancer

Stage IV triple-negative invasive lobular breast cancer with HER2 mutations: complete metabolic response to trastuzumab deruxtecan

Patient Info: Anonymized, Female, 70+ | Stage IV

Biomarkers: Triple-negative invasive lobular breast cancer with HER2-low/dubious staining and HER2 FISH-negative; somatic ERBB2/HER2 and mutations.

Metastatic Site: iliac bone lesions / bone metastases

As of January 2026, metastatic triple-negative invasive lobular breast cancer with HER2 mutations had a sustained complete metabolic response to trastuzumab deruxtecan for 20 months, with dose reduction for neutropenia and no pulmonary toxicity.

PubMed Central
OutcomeResponding Well
A patient, who was diagnosed with Stage III Invasive Ductal CarcinomaBreast Cancer

Recurrent breast cancer complicated by T-DXd-associated dermatomyositis and interstitial lung disease

Patient Info: Anonymized, Female, 40s | Stage III

Biomarkers: Initial tumor had weak ER/AR, PR-negative, HER2 0. Recurrence became ER/PR/AR-negative, HER2-low, PD-L1 CPS ~30.

The cancer progressed after adjuvant therapy and again after 6 cycles of gemcitabine/carboplatin. Trastuzumab deruxtecan was followed by dermatomyositis features and interstitial pneumonia, with symptoms worsening despite glucocorticoid treatment after continued exposure.

PubMed Central
OutcomeSetback / Progression
A patient, who was diagnosed with Stage IV Breast CancerBreast Cancer

HER2-positive breast cancer: brain recurrence, T-DXd liver injury, and later progression

Patient Info: Anonymized, Female, 40s | Stage IV

Biomarkers: HER2-positive; hormone receptor-negative; grade 3 infiltrative breast carcinoma

Metastatic Site: brain; thoracic lymph nodes

As of October 2025, the patient had developed brain and thoracic nodal recurrence after HER2-directed treatment, experienced T-DXd-associated liver injury, progressed after later paclitaxel/trastuzumab, and died at home in December 2024 under palliative care.

PubMed Central
OutcomeIn Memory
A patient, who was diagnosed with Stage III Invasive Ductal CarcinomaBreast Cancer

Stage IIIB HER2-positive breast cancer followed by resected pancreatic ductal adenocarcinoma

Patient Info: Anonymized, Female, 50s | Stage III

Biomarkers: Breast cancer HER2-amplified; ER/PR changed from positive to negative after treatment. Pancreatic markers supported a separate pancreatic cancer.

The breast cancer achieved radiological and clinical remission after multimodality HER2-directed treatment. In 2025, a separate pancreatic ductal adenocarcinoma was resected, and adjuvant gemcitabine plus albumin-bound paclitaxel was recommended.

PubMed Central
OutcomeCare Ongoing
Paul, who was diagnosed with Stage IV Breast CancerBreast Cancer

Stage IV HER2-Positive Breast Cancer: Paul's Patient Story

Patient Info: Paul Forgette, Male, 60s | Stage IV

Biomarkers: HER2-positive; triple-positive breast cancer; CHEK2 mutation

Metastatic Site: Bones; lymph nodes

By October 2025, 9 months after starting Enhertu, Paul’s Stage IV HER2-positive male breast cancer was described as dormant, not cured, with continued City of Hope care and integrative support.

City of Hope
OutcomeCare Ongoing