Category Archives: Signal Transduction

SOR-C13 and Psaptides for Ovarian Cancer

The U.S. Food and Drug Administration (FDA) has granted orphan-drug designation to peptide SOR-C13 (Sorcimed) for the treatment of ovarian cancer. Additionally, two forms of a peptide derived from a naturally-occurring human protein (Psaptides) can force tumors to shrink significantly in an animal model of metastatic ovarian cancerContinue reading

Saliva Test to Detect EGFR Mutations and Guide Therapy in Lung Cancer

A new technology called electric field–induced release and measurement (EFIRM) is able to detect biomarkers in saliva for non-small cell lung cancer (NSCLC). The test detects circulating tumor DNA (ctDNA). It is able to detect actionable EGFR (epidermal growth factor receptor) mutations in NSCLC patients with 100% concordance with biopsy-based genotyping, Dr Wong (study author) said, and it can detect the most common EGFR gene mutations that are treatable with TKIs (tyrosine kinase inhibitors), such as gefitinib (Iressa, AstraZeneca Pharmaceuticals LP) or erlotinib (Tarceva, Genentech/Roche). Continue reading

Additional Drivers and Pathways in Basal Cell Carcinoma

The Sonic hedgehog (Hh) pathway is known to be important in basal cell carcinoma (BCC), which as an extremely common skin cancer that only rarely invades and metastasizes. An approved drug for patients with advanced BCC, Vismodegib (Erivedge), interferes with the Hedgehog pathway. The Patched (12 membrane-spanning receptor protein) normally disables Smoothened (7 membrane-spanning protein) rendering it functionally inert. This maintains transcription factor Gli in a cleaved state, acting as a transcriptional repressor. When Hedgehog proteins bind to Patched, Smoothened is released and protects Gli from cleavage. Uncleaved Gli travels to the nucleus and is an inducer of transcription, increasing Cyclin D1 and stimulating the cell cycle (proliferation). Vismodegib blocks the actions of Smoothened. It is administered orally in 150 mg capsules.

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Three Recent Late Stage Disappointments for Lung Cancer, Pancreatic Cancer, Sarcoma, and Glioblastoma

In the last several months, three novel drugs that we have been following on this blog failed in late stage clinical trials. The drugs have diverse mechanisms of action:

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Vanquish Oncology – Procaspase 3 Activation Factor to Selectively Induce Apoptosis

Procaspase-3 is an executioner protein catalyzes the hydrolysis of more than 100 protein targets. These cleavage events ultimately lead to cell suicide, or apoptosis. Caspase-3 is triggered by the intrinsic and extrinsic apoptosis cascades. Continue reading

Oncodesign and Bristol Myers Squibb Enter Collaboration for Novel Kinase Inhibitors

Bristol-Myers Squibb recruited French biotech Oncodesign to help it find new ways of attacking tumors, signing an early-stage agreement in hopes of spotlighting some promising projects. Continue reading

Halaven Shows Survival Advantage in Liposarcoma – FDA Approved

Halaven (eribulin mesylate) was approved by the FDA for the treatment of patients with unresectable or advanced liposarcoma. The treatment is approved for patients who previously had undergone chemotherapy with an anthracycline drug. It was previously approved for patients with breast cancer who had undergone at least two prior chemotherapeutic regimens, including an anthracycline and a taxane. Continue reading

Priority Review for Potent Novel Therapy for Chronic Lymphocytic Leukemia (CLL)

Venetoclax is a novel cancer therapy being developed by Roche and AbbVie. The U.S. FDA has accepted the New Drug Application and granted Priority Review and Breakthrough Therapy Designation for venetoclax for the treatment of people with chronic lymphocytic leukemia (CLL) who have received at least one prior therapy, including those with 17p deletion. Continue reading

Argos’ Metastatic Renal Cell Carcinoma Study Passes Independent Data Safety Monitoring Committee Second Interim Analysis

An independent data monitoring committee (IDMC) has recommended the continuation of Argos’ pivotal phase 3 ADAPT clinical trial of AGS-003 for the treatment of metastatic renal cell carcinoma (mRCC) based on results of the committee’s second planned interim data analysis. The next planned interim analysis will be in 6 months. Continue reading

Biomarkers for Wnt activation Predict For HER-2(-) Breast Cancer and NSCLC Response to Vantictumab

OncoMed is developing several compounds that target Wnt and Notch pathways, which are important in cancer and cancer stem cell maintenance, survival, and proliferation. Biomarkers for response of Her-2-negative breast cancer and non-small cell lung cancer (NSCLC) following treatment with Vantictumab, anti-Wnt monoclonal antibody, have been developed. Continue reading