Sjögren syndrome during nivolumab treatment for HER2-positive metastatic gastric cancer

Patient Info: Anonymized, male, 60s | Stage IV

Biomarkers: HER2-positive

Metastatic Site: liver, lungs, adrenal gland

One year after nivolumab was stopped, the shrinkage of lung metastases was maintained and the adrenal metastasis remained unchanged, although severe dry-mouth symptoms from treatment-related Sjögren syndrome persisted.

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MSI-High Gastric Cancer With a Complete Response to Preoperative Nivolumab

Patient Info: Anonymized, Female, 60s

Biomarkers: MSI-high; PD-L1 expression in more than 1% of tumor cells; HER2 negative

Surgery found a complete pathologic response with no residual tumor cells and no cancer in 12 lymph nodes. At the time of reporting, she had no complaints and had returned to normal activities.

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Graves disease during nivolumab treatment for HER2-positive metastatic gastric cancer

Patient Info: Anonymized, male, 60s | Stage IV

Biomarkers: HER2-positive

Metastatic Site: liver, brain

After progression through several treatment lines and development of brain metastasis, he died 4 months after evaluation for nivolumab-associated Graves disease, more than 1.5 years after his Stage IV gastric-cancer diagnosis.

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Nivolumab-related IgA kidney disease during treatment for Stage IV gastric cancer

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

The gastric tumor regrew while nivolumab was withheld. Kidney function improved with steroids, but recurrent pneumonia and poor performance status prevented immunotherapy from restarting.

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Clival skull-base metastasis during treatment for Stage IV gastric cancer

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

Biomarkers: HER2-negative

Metastatic Site: peritoneum, cervical lymph nodes, pelvic bone, lungs,…

At publication he was alive on fourth-line treatment, with no disease progression for 6 months after the clival metastasis was treated and with sustained improvement in his cranial-nerve symptoms.

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Stage IV gastric cancer complicated by paraneoplastic dermatomyositis during nivolumab treatment

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

Metastatic Site: liver, lung, abdominal cavity

He died from rapidly worsening gastric cancer 142 days after the first nivolumab dose, roughly 14 months after his April 2017 diagnosis.

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