Navigation Links
A Collaboration to Find New Tools to Fight Leukemia

Mayo Clinic Cancer Center, working in collaboration with Ohio State University Comprehensive Cancer Center//, presented evidence Sunday that a novel regimen of three chemotherapy drugs, pentostatin, cyclophosphamide and rituximab, resulted in significant clinical response in patients with previously untreated chronic lymphocytic leukemia (CLL). Lead researcher and Mayo Clinic hematologist Neil E. Kay, M.D., presented these findings at the 2006 American Society of Hematology Annual Meeting in Orlando.

“Chronic lymphocytic leukemia is incurable, but continues to be made more manageable with the advent of powerful new chemoimmunotherapy tools,” says Dr. Kay. “We and our collaborators at Ohio State University, in particular Dr. Michael Grever, have done previous research on pentostatin that led us to believe there would be success with this regimen, and are pleased with the results.”

Regimens using rituximab are common for CLL patients, says Dr. Kay, and his team decided to build upon that knowledge and their understanding of the highly potent chemotherapeutic antibiotic pentostatin to try to develop an even better treatment option. The investigators initiated a trial of three weeks (one cycle) of combined chemotherapy drugs pentostatin (P), cyclophosphamide (C) and rituximab (R) repeated in six cycles for 64 symptomatic but previously untreated patients. Patients in the study also received one year of prophylactic sulfamethoxazole-trimethoprim (anti-infection drug) and acyclovir (antiviral drug) along with the PCR treatment.

The researchers reviewed study participants’ prognostic status and divided the patients into risk categories at the beginning of the study, using a number of different prognostic evaluation tools to describe them, including the Rai stages (clinical levels of disease progression), CD38 and ZAP-70 (overexpressed proteins found in CLL cells), IgVH (mutational status of the immunoglobulin gene occurring in CLL patien ts), and FISH panel assessments (fluorescent probes on the chromosomes to determine common recurring genetic mutations in CLL). The majority of the patients were in high-risk categories; they had significant disease progression and/or a high expectation of rapid advancement of disease.

Following treatment, Dr. Kay’s team found that 91 percent of the patients experienced positive clinical responses (experienced improvement in their condition) to the treatment based on the National Cancer Institute’s Working Group criteria for responses. Forty-one percent achieved complete response, 22 percent experienced nodular partial response and 28 percent partial response, with the average patient’s disease currently estimated to being in response for 32.6 months. The researchers also found that bone marrow suppression and/or infections were minimal.

The prognostic variables that normally indicate likelihood of poor response to treatment appeared to be negated by the treatment --only one genetic defect (deletion of the p arm of chromosome 17) was found to prevent complete response or nodular partial response; the other risk factors did not diminish treatment effectiveness. Also, the researchers found that the regimen was equally effective in young and elderly (over age 70) patients.

“We are very pleased with the results of this study,” says Dr. Kay. “This is a new, viable option for high-risk patients who might not have had much hope before, and it’s especially exciting that it works for patients of all age groups.”

Chronic lymphocytic leukemia is a blood and bone marrow cancer that affects 10,000 new patients each year in the United States. It is called chronic leukemia because it progresses more slowly than acute leukemia, and lymphocytic because it affects a group of white blood cells (lymphocytes), an important component of the immune system which typically fights infection.

Source-Newwise
SRM
'"/>




Related medicine news :

1. Collaborations planned between British Organization and Indian health care industry
2. Crusade Against Cancer: Collaborations On The Anvil
3. Mayo Clinic and Indian Health Service Form Clinical Practice Collaboration
4. International Collaboration Takes Aim at Rabies
5. British Medical Association Plans Collaboration With India
6. British Medical Association Plans Collaboration With India
7. LondonMet Keen on Widening Research Collaborations With India
8. New Tools To Identify Flu Strains
9. Is There a Connection between Hearing loss and High-speed Dental Tools?
10. Software Tools & Fonts in Seven Indian Languages
11. ‘Dirty’ and Dangerous Tools Put Full Stop to Operatin
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/25/2016)... ... May 25, 2016 , ... First Choice Emergency Room , the ... Tat Nguyen, as the Medical Director of its new DeSoto facility. , “We ... new DeSoto location,” said Dr. James M. Muzzarelli, Executive Medical Director of First Choice ...
(Date:5/24/2016)... ... May 24, 2016 , ... Sterling Global Products is launching a ... patented refillable hanging wipe dispenser. The campaign kick-off video is located via this link ... 25, 2016. The goal is to raise $1,000 per day for a total of ...
(Date:5/24/2016)... Michigan (PRWEB) , ... May 24, 2016 , ... ... Nurse Midwife, Roberta Jordan. , Roberta Jordan is a Certified Nurse Midwife ... Grand Valley State University and then went on to complete her masters degree ...
(Date:5/24/2016)... ... 2016 , ... Educational opportunities, and therefore life chances, have ... providing richer opportunities. Recognizing the key role of housing in this system, equity-minded ... choice policies; (c) school desegregation policies; (d) wealth-focused policies; and (e) housing-focused policies. ...
(Date:5/24/2016)... ... May 24, 2016 , ... Regenerative Medicine is being transformed ... stem cell therapy technology, protocols and patient results as have been achieved with ... a more accessible standard of care for patients worldwide. , As the Medical Advisory ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... HONG KONG , May 24, 2016 /PRNewswire/ ... primer stent de doble terapia del mundo, introduce ... fístula arteriovenosa. OrbusNeich, una compañía global ... cambian las vidas, ha expandido su cartera incluyendo ... catéteres balón JADE™ y Scoreflex™ PTA son los ...
(Date:5/23/2016)... 23, 2016 According to ... Market by Product (Wheelchair, Scooters, Medical Beds, Bathroom ... Critical Care, Wound), Accessories (Lifting, Transfer) & by ... published by MarketsandMarkets, the patient handling equipment market ... 2021 at a CAGR of 10.5% during the ...
(Date:5/23/2016)... 2016 Clarifying Vision - Prospects ... and Vision Care What can be expected ... to grow at the fastest rates? This visiongain ... data, trends, opportunities and prospects. ,Our ... the most lucrative areas in the industry and the ...
Breaking Medicine Technology: