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Caroline Helwick

Articles by Caroline Helwick

STOCKHOLM-Elesclomol, an investigational small-molecule oxidative stress inducer (Synta Pharmaceuticals), in combination with paclitaxel (Taxol) showed a trend toward improved survival in stage IV metastatic melanoma patients, compared with paclitaxel alone.

The natural history of melanoma has changed little over the years, despite advances in testing and treatment such as cytotoxics, DNA-damaging agents, antimicrotubule drugs, and immunomodulatory therapies. Only 15% of advanced-stage patients respond to the two FDA-approved agents, interleukin-2 and dacarbazine (DTIC or DTIC-Dome).

CHICAGO-In recurrent or metastatic breast cancer, the addition of bevacizumab (Avastin) significantly improved progression-free survival over treatment with docetaxel (Taxotere) alone, European investigators reported at ASCO 2008 (abstract LBA-1011).

Positive data were reported from the first-ever randomized, multicenter, open-label phase III trial of the combination of two targeted agents, lapatinib (Tykerb) and trastuzumab (Herceptin), in women with HER2-positive metastatic breast cancer. The study results, which were presented at the annual ASCO meeting in Chicago, demonstrated a benefit from the combination (abstract 1015).

CHICAGO-For breast cancer patients whose tumors have become resistant to available agents, restoring the sensitivity to treatment is an important goal. Preclinical studies have suggested that drugs that inhibit the mTOR protein kinase-which acts as a central regulator of tumor cell division, cell metabolism, and blood vessel growth-may be able to do so.

CHICAGO-Newly diagnosed patients with metastatic colorectal cancer are most likely to benefit from cetuximab (Erbitux) when their tumors contain the normal version of the KRAS gene, compared to patients with KRAS mutations, according to a conclusive analysis from the phase III CRYSTAL trial presented at the ASCO 2008 plenary session (abstract 2).

SAN DIEGO-More than 70% of advanced pancreatic patients derived some clinical benefit when treated with nanoparticle albumin-bound (nab) paclitaxel (Abraxane) and gemcitabine (Gemzar), in a phase I study reported at the 2008 American Association of Cancer Research meeting (abstract 4179).

SAN DIEGO-The body’s immune system can be directed to shrink tumors and prevent new ones in a variety of tumor types, according to investigators who described new cellular strategies and vaccines at the 2008 American Association for Cancer Research annual meeting.

SAN DIEGO-For women with ductal carcinoma in situ, it may be possible to deliver chemotherapy intraductally, thus providing a less toxic means of treatment, according to a feasibility study spearheaded by Susan Love, MD, of UCLA’s David Geffen School of Medicine. Dr. Love presented her research at the 2008 American Association for Cancer Research annual meeting (abstract LB-245).

SAN DIEGO­-Bevacizumab (Avastin) added to chemoradiation as neoadjuvant therapy for locally advanced rectal tumors led to substantial downstaging and 100% local control at 4 years in a small phase II study reported at the 2008 American Association of Cancer Research annual meeting (abstract LB-304). The study enrolled 32 patients with T3/T4 nonmetastatic rectal cancer from Massachusetts General Hospital and Duke University Medical Center between 2001 and 2007.

ORLANDO­-“Unresectable” colorectal cancer liver metastases may actually be resectable with a two-stage hepatectomy approach, Rene Adam, MD, PhD, of the Hospital Paul Brousse, Villejuif, France, said at the 2008 Gastrointestinal Cancers Symposium (abstract 283).

ORLANDO-In a subset of patients with colorectal liver metastases, a pathologic complete response can be achieved with preoperative chemotherapy, rendering “uncommonly high” disease-free and overall survival rates, French investigators reported at the 2008 Gastrointestinal Cancers Symposium (abstract 333).

Optical tomography with ultrasound localization has the potential to monitor tumor vascular changes during neoadjuvant chemotherapy, according to a pilot study in which the modality was able to distinguish between responders and nonresponders, and even between complete and partial pathologic responses. Susan Tannenbaum, MD, of the University of Connecticut, Farmington, described the approach at the 2007 San Antonio Breast Cancer Symposium (abstract 45).