Navigation Links
Two targeted therapies likely better than one in patients with aggressive lymphoma
Date:5/15/2009

ORLANDO - When combined with a cocktail of chemotherapy drugs, two monoclonal antibodies, instead of one, appear to offer superior results in patients with diffuse large B-cell lymphoma, according to Mayo Clinic researchers working with the North Central Cancer Treatment Group (NCCTG).

At the annual meeting of the American Society of Clinical Oncology (ASCO), researchers say that adding the targeted therapy epratuzumab to a regimen known as R-CHOP resulted in an overall 12-month survival of 88 percent in 78 patients. While they call that a very good outcome, the researchers were especially encouraged because the survival rate was 85 percent in patients with high-risk disease.

"These results are very good and very promising, and hopefully will be an important advance over treatment now being offered to patients with this cancer," says the study's lead author, Ivana Micallef, M.D., a Mayo Clinic hematologist. "But we cannot yet say that is so, since the two different regimens haven't been tested head to head."

"Still, we are eager to do a randomized, phase III study because when we compare our results to some other studies of R-CHOP, our findings do look better," she says. In general, those studies showed a 12-month progression-free survival (PFS) of 67 to 79 percent.

The NCCTG multi-institutional research network is planning a clinical trial that will randomize patients with high-risk diffuse large B-cell lymphoma to either this regimen, known as ER-CHOP, or to R-CHOP, the standard treatment. R-CHOP includes a combination of chemotherapy drugs (cyclophosphamide, doxorubicin, and vincristine), the steroid drug prednisone, and rituximab, a monoclonal antibody.

Diffuse large B-cell lymphoma is one of the most common and aggressive forms of non-Hodgkin lymphoma, a cancer of the B-lymphocyte white blood cells.

The researchers are the first to study the addition of epratuzumab to R-CHOP in newly diagnosed, untreated patients. Both epratuzumab and rituximab are monoclonal antibodies that attach to proteins commonly found on the outside surface of B cells CD20 for rituximab and CD22 for epratuzumab. They are also used as immunosuppressive agents to treat certain autoimmune diseases where B cells produce antibodies that attack a person's own cells. "These drugs are designed to shut down B cells, whether they are involved in autoimmunity or are malignant," Dr. Micallef says.

Rituximab is approved for use by the Food and Drug Administration, while epratuzumab is not. That means ER-CHOP treatment cannot be used outside of a clinical trial.

In addition to the results on overall survival, the researchers found an 82 percent progression-free survival in the group. The 39 high-risk patients had a 77 percent PFS, and, for the 39 low-risk patients, PFS was 88 percent. Patients are deemed high risk if they have three or more poor prognostic factors, such as age (60 years or older), elevated LDH (a blood test), advanced disease stage, disease outside of lymph nodes and poor physical performance status.

Dr. Micallef says that the treatment, which is given every 21 days, was well tolerated by patients.


'/>"/>

Contact: Karl Oestreich
newsbureau@mayo.edu
507-284-5005
Mayo Clinic
Source:Eurekalert

Related medicine news :

1. Children who view adult-targeted TV may become sexually active earlier in life
2. Targeted agent shows promise in biliary cancer study
3. Targeted Treatments Show Mettle Against Advanced Cancers
4. UCSF, Stanford Study Reveals Neural Networks Targeted in Brain Diseases
5. Adventist Midwest Health Engages Medium Blue Search Engine Marketing in Geographically-Targeted SEO Campaign
6. M. D. Anderson Cancer Center Acquires Leksell Gamma Knife Perfexion for Targeted Brain Lesion Treatments
7. Cancer Researcher Dan Von Hoff, M.D. Advocates for "Context of Vulnerability," A Powerful New Paradigm for Targeted Drug Development
8. Pearly Penile Papule Patients Can Successfully Be Treated with Targeted CO2 Technology at La Jolla Cosmetic Surgery Centre
9. Targeted nanospheres find, penetrate, then fuel burning of melanoma
10. Health Integrated Achieves NCQA Full Accreditation for Its Synergy Targeted Population Management(TM) Program
11. Targeted Prostate Cancer Biopsy and Cancer Treatment Earns Acceptance From Nations Top Prostate Specialists
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2017)... Calif. (PRWEB) , ... March 24, 2017 , ... ... raised over $100,000 for its innovative EcoQube Frame vertical micro-veggies garden on ... instant demand for the product – with nearly 2,000 consumers (and counting) already ...
(Date:3/24/2017)... ... March 24, 2017 , ... The law firm of Enea, ... pleased to announce Westchester resident Lauren C. Enea has joined the firm as an ... will concentrate her practice in elder law, Medicaid planning and applications, and Wills, Trusts ...
(Date:3/24/2017)... ... March 24, 2017 , ... ... Certified Medical Reiki™ Master in Frederick, MD. Judy says, “I am passionate about ... what is often a very difficult and challenging time.” , A Certified Medical ...
(Date:3/24/2017)... ... March 24, 2017 , ... ... inspiring stories about real people of God in congregations across the United States. ... a Presbyterian minister ordained in 1964 who has served congregations in seven states ...
(Date:3/23/2017)... ... , ... The physicians of KSF Orthopaedic Center PA are proud to announce ... is located at 2255 E. Mossy Oaks Rd., Suite 440, Spring, Texas 77389 inside ... patients living in the north Houston area (The Woodlands, Conroe, Magnolia, Kingwood, Humble) with ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... DUBLIN , Mar 24, 2017 Research ... in Drug Discovery and Diagnostics, 2017 - 2035" report to ... The ... current landscape and future outlook of the growing market of deep ... data revolution, deep learning algorithms have emerged as a novel solution ...
(Date:3/24/2017)... 24, 2017 Today Stock-Callers.com have issued ... are: Neovasc Inc. (NASDAQ: NVCN), Hologic Inc. (NASDAQ: HOLX), Edwards ... SSH ). These companies are part of the Healthcare ... Thursday, March 23 rd , 2017, with the NYSE Health ... health care companies in the S&P 500 were down about ...
(Date:3/24/2017)... INDIANAPOLIS , March 24, 2017  Eli ... today announced plans to invest $850 million in ... span facilities across its U.S. enterprise, including research ... The investments are being driven by demand for ... of potential medicines in development targeting cancer, pain, ...
Breaking Medicine Technology: