Two Cases of Granulocyte-colony-stimulating Factor-producing Lung Cancer

Komatsu, Akina; Yamanaka, Yoshiaki; Miyakawa, Hanae; Ichikawa, Akihiro; Kazuyori, Taisuke; Kojima, Akira

doi:10.2482/haigan.56.227

Cited by 1 publication

(1 citation statement)

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“…Several previous case reports have shown the efficacy of systemic chemotherapy such as platinum-combined chemotherapy with etoposide or paclitaxel and non-platinum chemotherapy with gemcitabine and vinorelbine for G-CSF-producing lung tumours [3]. However, the standard chemotherapy for these type of lung tumours has not been established because most cases are aggressive and chemotherapy-refractory with a poor prognosis.…”

Section: Discussionmentioning

confidence: 99%

Advanced G‐CSF‐producing non‐small cell lung cancer‐not otherwise specified, with favourable response to pembrolizumab monotherapy

Yamada

Masuzawa

Hamada

et al. 2020

Respirology Case Reports

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Advanced granulocyte colony‐stimulating factor (G‐CSF)‐producing lung tumours are generally refractory to platinum‐based chemotherapy and are associated with poor prognosis. However, therapeutic strategies for these tumours remain unknown. A 74‐year‐old man was diagnosed with non‐small cell lung cancer‐not otherwise specified (NSCLC‐NOS); the clinical stage was T4N0M1c stage IVb. Blood testing showed leucocytosis and aberrant G‐CSF expression. We chose single‐agent pembrolizumab as the initial treatment because PD‐L1 was highly expressed in the tumours. A clinically favourable response was achieved from seven courses of pembrolizumab with a total disease‐free survival of 10 months. During this period, the blood leucocyte count was concordant with the disease condition. These observations showed that pembrolizumab monotherapy may be an effective treatment for patients with advanced G‐CSF‐producing NSCLC‐NOS and that the monitoring of leucocyte count may be a useful biomarker for predicting the efficacy of pembrolizumab monotherapy.

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Section: Discussionmentioning

confidence: 99%