Immunotherapy With Live Bacterium Improves Response Rate in Malignant Pleural Mesothelioma

ELCC 2016 Press Release: Immunotherapy With Live Bacterium Improves Response Rate in Malignant Pleural Mesothelioma

Date: 14 Apr 2016Topic: Lung and other thoracic tumours / Cancer Immunology and Immunotherapy

GENEVA, Switzerland – Immunotherapy with a live bacterium combined with chemotherapy demonstrated more than 90% disease control and 59% response rate in patients with malignant pleural mesothelioma (MPM), according to the results of a phase Ib trial presented today at the European Lung Cancer Conference (ELCC) 2016 in Geneva, Switzerland.

“Malignant pleural mesothelioma is a cancer of the lining of the lung and is rare but difficult to treat,” said Prof Thierry Jahan, professor of medicine at the UCSF Helen Diller Family Comprehensive Cancer Center in San Francisco, US. “Standard of care treatment with pemetrexed and platinum compound chemotherapy gets a 30% response rate but a modest impact on survival. So there is a clear unmet need in targeting this specific population.

”Patients with MPM strongly express the mesothelin antigen in the tumour. CRS-207 is a live, attenuated Listeria monocytogenes bacterium that contains two gene deletions to diminish its pathogenicity and has also been engineered to express mesothelin.“

In our early studies, CRS-207 induced an anti-mesothelin response and cellular tumour specific immunity in patients with mesothelin expressing tumours,” said Jahan. “We also have data suggesting that this immunotherapy works synergistically with chemotherapy, so testing the effect of this immune targeting agent with chemotherapy was a natural step.”

[Article continues at original source]

Source: ELCC 2016 Press Release: Immunotherapy With Live Bacterium Improves Response Rate in Malignant Pleural Mesothelioma | ESMO

 


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