PSMA-PET Agents Poised to Advance Imaging in Prostate Cancer

Excerpt:

“Imaging agents for the detection of biochemical recurrent prostate cancer could move beyond computed tomography (CT) and magnetic resonance imaging (MRI) in the near future, with the emergence of prostate-specific membrane antigen (PSMA)-PET, particularly in oligometastatic disease, with a high-detection sensitivity rate, explains Thomas Hope, MD.

“PSMA-PET uses small molecules that bind to PSMA, localizes a prostate cancer tumor, and allows radiologists to image patients after 1 hour to detect small sites of disease. Hope and researchers at the University of California, San Francisco (UCSF) are dedicated to bringing this imaging modality to the FDA for approval with diagnostic data as evidence.”

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Local Tumor Removal Followed by TKI Treatment May Be Effective in Lung Cancer Patients Resistant to TKIs

Many non-small cell lung cancer (NSCLC) patients who receive EGFR-tyrosine kinase inhibitors (TKIs) like erlotinib (Tarceva) and gefitinib (Iressa) develop drug resistance. Some of these patients may also have a small number of metastases (oligometastatic disease), which can be destroyed with local therapy. Local therapy methods include surgical removal, radiation, or electrical current produced by high-frequency radio waves (radiofrequency ablation). A recent study explored the use of local therapy, followed by renewed treatment with EGFR-TKIs, in patients with oligometastatic NSCLC who had become resistant to EGFR-TKIs. The treatment was well tolerated and effective, especially for patients in whom local therapy had removed all known tumors.

Research paper: http://journals.lww.com/jto/Abstract/2013/03000/Local_Therapy_with_Continued_EGFR_Tyrosine_Kinase.14.aspx