Proton-Beam Therapy in Limited-Stage SCLC Shows Promising Efficacy

Excerpt:

“Proton-beam therapy (PBT) was found to be safe for patients with limited-stage (LS) small-cell lung cancer (SCLC) in the first prospective registry study of the therapy, with only a small number of high-grade toxicities.

” ‘Radiation therapy is essential for the management of limited-stage SCLC,’ wrote study authors led by Jean-Claude M. Rwigema, MD, of the Hospital of the University of Pennsylvania in Philadelphia. ‘When it is given with concurrent chemotherapy, radiation therapy can result in substantial toxicities.’ PBT can reduce the exposure to nearby organs at risk in non–small-cell lung cancer, and is under substantial investigation in that setting; before the new study, though, only a six-patient case series had examined its use in SCLC.”

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Statins at Start of Androgen Deprivation Therapy Increase Treatment Efficacy

“Statin use has been associated with improved outcome in prostate cancer. In a study reported in JAMA Oncology, Harshman et al found that statin use at the time of initiation of androgen-deprivation therapy was associated with prolonged time to progression during androgen-deprivation therapy in men with hormone-sensitive prostate cancer. The potential mechanism of this effect may be statin competitive inhibition of dehydroepiandrosterone sulfate (DHEAS) uptake.

“Androgen-deprivation therapy for biochemical or metastatic recurrence or new metastatic disease between January 1996 and November 2013 showed that 283 men (31%) were taking statins at the start of androgen-deprivation therapy. After a median follow-up of 5.8 years, 644 patients (70%) had disease progression while receiving androgen-deprivation therapy, with a median time to progression during androgen-deprivation therapy of 20.3 months. Median time to progression was 27.5 months (95% confidence interval [CI] = 21.1–37.7 months) in statin users vs 17.4 months (95% CI = 14.9–21.1 months) in nonusers (P < .001).”