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Home NEWS Science News Chemistry

Many Non-Hodgkin’s Lymphoma patients can skip radiation, collaborative study finds

Bioengineer by Bioengineer
October 7, 2020
in Chemistry
Reading Time: 5 mins read
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University of Arizona Cancer Center’s Dr. Daniel Persky led a study that found many patients with the most common non-Hodgkin’s lymphoma type, diffuse large B-cell lymphoma (DLBCL), can safely skip radiation and receive fewer chemotherapy treatments.

IMAGE

Credit: (Photo: University of Arizona Health Sciences, Kris Hanning)

TUCSON, Ariz. – Skipping radiation and receiving less chemotherapy may become the new standard of care for some lymphoma patients, according to a recent collaborative study led by a University of Arizona Health Sciences researcher.

” in the absolute majority of diffuse large b-cell lymphoma patients presenting with limited stage disease we can safely reduce number treatments and omit radiation said>Daniel Persky, MD, associate director for clinical investigations at the UArizona Cancer Center, principal investigator of its Lymphoma Clinical Research Team, and professor of medicine in the Division of Hematology and Oncology at the UArizona College of Medicine – Tucson.

The study aimed to improve treatment for patients with Stage I or II (limited stage) diffuse large B-cell lymphoma, the most common type of non-Hodgkin’s lymphoma in the United States. Non-Hodgkin’s lymphomas are cancers of lymphocytes, a type of white blood cell that helps protect the body from infection and disease. The disorder accounts for almost 40% of non-Hodgkin’s diagnoses and is usually a fast-spreading cancer, but one that is potentially curable.

In some cases, DLBCL can be treated with a chemotherapy combination of drugs known as R-CHOP. This combination consists of five drugs approved by the U.S. Food and Drug Administration (FDA) – rituximab (R) plus cyclophosphamide (C), hydroxydaunomycin (H), oncovin (O) and prednisone (P). Patients then undergo three cycles of the chemotherapy followed by radiation, or complete six cycles without radiation.

In the new study published in July in the Journal of Clinical Oncology, research suggests radiation is not needed for many patients. Instead, it suggests using a positron emission tomography (PET) scan after three cycles of R-CHOP. If the patient’s scan is negative, they can proceed with one additional round of R-CHOP to complete their treatment.

Dr. Persky was the lead investigator for the study conducted by the SWOG Research Network, a cancer clinical trials network funded by the National Cancer Institute. Results showed that 91% of people who received no radiation were alive five years after treatment, and 89% were cancer-free.

The study is promising for reducing unintended harmful effects that can be caused by radiation and chemotherapy, such as R-CHOP, in patients. These effects are particularly concerning for older patients who may be suffering from, or at risk of, other health conditions as they age. Therefore, reducing the toxicity of their cancer treatments can have significant health benefits and improve their quality of life.

“We serve this population, and tolerance to the treatment is important to them,” Dr. Persky said. “It is much easier to get an older patient through four cycles of R-CHOP than it is through six.”

“This is very significant for many of our patients at the UArizona Cancer Center,” said Joann Sweasy, PhD, the Nancy C. and Craig M. Berge Endowed Chair and UArizona Cancer Center director. “I congratulate Dr. Persky on leading this high impact clinical research study.”

In the study, patients with a positive PET scan did not proceed with additional rounds of R-CHOP. Instead, they underwent radiation therapy and a booster treatment in areas where the scans showed rapidly growing cancer cells. These patients then received treatment with a radioimmunotherapy drug, ibritumomab tiuxetan, that is not yet FDA approved for DLBCL, but is approved in other types of lymphoma.

“The interim PET positive group were those at greater risk of relapse or recurrence of their cancer,” Dr. Persky said. “This group also did really well in the study.”

The findings may be significant for patients diagnosed with this disease in the future.

“This can be the new standard of care for limited stage DLBCL patients,” Dr. Persky said. “Many patients can forgo radiation and receive less chemotherapy while still getting excellent results.”

###

Research reported in this publication was supported by the National Cancer Institute, a unit of the NIH, under Award Nos. U10-CA180821, U10-CA180888, U10-CA180819, U10-CA180820 and U24-CA180803.

NOTE:
Photos available here – https://arizona.box.com/s/0l7upzmxmgu282xwps41jow6jkcoxr0c.

Media Contact:
Blair Willis
520-626-0331
[email protected]

About the University of Arizona Cancer Center

The University of Arizona Cancer Center is the only National Cancer Institute-designated Comprehensive Cancer Center with headquarters in Arizona. The UArizona Cancer Center is supported by NCI Cancer Center Support Grant No. CA023074. With primary locations at the University of Arizona in Tucson and at Dignity Health St. Joseph’s Hospital and Medical Center in Phoenix, the UArizona Cancer Center has more than a dozen research and education offices throughout the state, with more than 300 physicians and scientists working together to prevent and cure cancer. For more information: cancercenter.arizona.edu (Follow us: Facebook | Twitter | YouTube).

About the University of Arizona College of Medicine – Tucson

The University of Arizona College of Medicine – Tucson is shaping the future of medicine through state-of-the-art medical education programs, groundbreaking research and advancements in patient care in Arizona and beyond. Founded in 1967, the college boasts more than 50 years of innovation, ranking among the top medical schools in the nation for research and primary care. Through the university’s partnership with Banner Health, one of the largest nonprofit health-care systems in the country, the college is leading the way in academic medicine. For more information, visit medicine.arizona.edu (Follow us: Facebook | Twitter | Instagram | LinkedIn).

About the University of Arizona Health Sciences

The University of Arizona Health Sciences is the statewide leader in biomedical research and health professions training. The UArizona Health Sciences includes the Colleges of Medicine (Tucson and Phoenix), Nursing, Pharmacy, and the Mel and Enid Zuckerman College of Public Health, with main campus locations in Tucson and the growing Phoenix Biomedical Campus in downtown Phoenix. From these vantage points, the Health Sciences reaches across the state of Arizona and the greater Southwest to provide cutting-edge health education, research and community outreach services. A major economic engine, the Health Sciences employs nearly 5,000 people, has approximately 4,000 students and 900 faculty members, and garners $200 million in research grants and contracts annually. For more information: uahs.arizona.edu (Follow us: Facebook | Twitter | YouTube | LinkedIn | Instagram).

Media Contact
Blair Willis
[email protected]

Original Source

https://opa.uahs.arizona.edu/newsroom/news/2020/many-non-hodgkins-lymphoma-patients-can-skip-radiation-uarizona-health-sciences

Related Journal Article

http://dx.doi.org/10.1200/JCO.20.00999

Tags: cancerClinical TrialsHealth CareHematologyMedical EducationMedicine/HealthPharmaceutical ChemistryPharmaceutical SciencePharmaceutical SciencesPharmaceutical/Combinatorial Chemistry
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