Category Archives: Uncategorized

Platelet conjugates effectively deliver checkpoint inhibitors to tumors

Platelets are the second most abundant cellular component of blood. The platelet membrane contains an abundance of receptors to facilitate interactions with subendothelial matrix , other blood cells, and other platelets. The central role of platelets is in hemostasis, however, they also contain copious amounts of cytokines that induce inflammation. Continue reading →

PD-L1 Inhibitor, avelumab, approved for Merkel cell carcinoma

Avelumab (Bavencio) is a PD-L1 inhibitor that was approved for the treatment of patients with metastatic Merkel cell carcinoma (MCC). Continue reading →

Osteopontin – a prognostic marker for cancer progression

Osteopontin (OPN) is a matrix protein that is expressed by osteoclasts, osteoblasts, dendritic cells, fibroblasts, hepatocytes, smooth and skeletal muscle cells, endothelial cells, and kidney cells. It interacts with many cell surface receptors including integrins and CD44. One of the major physiologic functions of OPN is the control of bone mineralization – by binding to specific apatitie crystal faces, it inhibits mineralization. But, OPN is also a pro-inflammatory cytokine that acts in many tissues to recruit monocytes and macrophages and induce cytokine secretion from leukocytes. As such, it has a critical role in tissue remodeling, inflammation, and tumorigenesis. Continue reading →

Hyperprogression on Checkpoint Inhibition Immunotherapy

Results with checkpoint inhibitors nivolumab (PD-1, Opdivo), pembrolizumab (PD-1, Keytruda), and atezolizumab (PD-L1, Tecentriq) are impressive. Some patients have experienced incredible and prolonged responses. These drugs are truly modern medical breakthroughs.
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Ublituximab, a novel anti-CD20 Monoclonal Antibody for CLL

TG Therapeutics is developing ublituximab, and anti-CD20 monoclonal antibody for patients with CLL (Chronic Lymphocytic Leukemia). In a phase 3 study in patients with relapsed disease, the combination of ublituximab and ibrutinib (Imbruvica) was superior to ibrutinib, alone – the overall response rates were 80% and 47%, respectively. Continue reading →

Juno Advances CAR T-cell CAR017 and Halts CAR015 in Non-Hodgkin Lymphoma

Juno Therapeutics is developing Chimeric Antigen Receptor (CAR) T-cells directed against B-cell antigen CD19 for the treatment of patients with B-cell lymphomas. The company has elected to halt the development of JCAR015 for Acute Lymphoblastic Leukemia (ALL) and proceed with JCAR017 for relapsed/refractory diffuse large B-cell lymphoma (DLBCL), the most common form of Non-Hodgkin Lymphoma (NHL), due to the development of cerebral edema and subsequent death of several patients with ALL enrolled in its phase 2 ROCKET trial, which has been suspended. Continue reading →

Argos’ Phase 3 Metastatic Renal Cell Carcinoma Study Discontinued by Data Monitoring Committee

Rocapuldencel-T is an autologous dendritic cell immunotherapy for patients with metastatic renal cell carcinoma about which we have written previously. It is produced by isolating patient tumor mRNA, which is then electroporated into patient dendritic cells in the presence of CD40 ligand. The rationale of this approach is to bypass mechanisms by which cancer cells dampen the anti-tumor immune response, including down-regulation of MHC Class I molecules. If the cancer antigens are presented on licensed dendritic cells, logically, the immune system would be appropriately stimulated to attack the cancer. Continue reading →

Interferon alpha gene therapy for refractory superficial bladder cancer in Phase III study

Valstar (valrubicin), the last drug approved for the treatment of superficial bladder cancer that is refractory to front-line therapy with BCG (bacillus Calmette-Guerin), entered the market in 1998. The registration study for Valstar demonstrated a twenty percent complete response rate three months following six weekly intravesical (transurethral administration into the bladder) instillations of the novel anthracycline in patients with BCG-refractory carcinoma in situ of the bladder. Continue reading →

Losing 10 pounds or more confers lower risk of endometrial cancer

The link between endometrial cancer and obesity is the strongest of all cancers studied; obesity is also strongly linked to breast and colon cancer. In the Iowa Women’s Health Study,  patients who intentionally lost at least 20 pounds demonstrated a risk of endometrial cancer equivalent to non-obese patients. A supplemental analysis suggested that intentional loss of 10 pounds also reduced risk. Continue reading →