Novocure said the results from the STELLAR trial were published in The Lancet Oncology.
The STELLAR trial was a prospective, single-arm trial including 80 patients that studied the use of Tumor Treating Fields, delivered via the NovoTTF-100L System, in combination with pemetrexed plus cisplatin/carboplatin as a first-line treatment for patients with unresectable, locally advanced or metastatic malignant pleural mesothelioma.
Data showed a median overall survival of 18.2 months (95 percent CI, 12.1 months-25.8 months) for patients treated with NovoTTF-100L and pemetrexed plus cisplatin or carboplatin. One- and two-year survival rates were 62.2 percent (95 percent CI, 50.3 percent-72.0 percent) and 41.9 percent (95 percent CI, 28.0 percent-55.2 percent), respectively. No serious systemic adverse events were considered to be related to the use of NovoTTF-100L. The most common mild to moderate adverse event was skin irritation beneath the transducer arrays.
“The STELLAR trial demonstrated encouraging overall survival results with no increase in systemic toxicity observed in MPM patients treated with Tumor Treating Fields and standard chemotherapy,” Giovanni Luca Ceresoli, head of pulmonary oncology at the Humanitas Gavazzeni Hospital in Bergamo, Italy, and principal investigator in the STELLAR trial, said in a statement. “The median overall survival of 18.2 months is impressive given that MPM is a tumor with a dismal prognosis and few effective therapeutic options.”
Median progression free survival was 7.6 months (95 percent CI, 6.7 percent-8.6 percent) for patients treated with NovoTTF-100L and pemetrexed plus cisplatin or carboplatin. There was a 97 percent disease control rate in patients with at least one follow-up CT scan performed (n=72). 40 percent of patients had a partial response, 57 percent had stable disease and 3 percent had progressive disease.
