Navigation Links
New Drug Promising for Advanced Thyroid Cancer
Date:9/19/2010

By Steven Reinberg
HealthDay Reporter

FRIDAY, Sept. 17 (HealthDay News) -- A targeted drug called pazopanib could prove effective against difficult-to-treat cases of thyroid cancer cases, researchers say.

Most thyroid cancers can be treated with surgery or radioiodine, but about 5 percent of patients will develop an aggressive, life-threatening form of the disease.

Pazopanib (Votrient), already approved by the U.S. Food and Drug Administration for treating advanced kidney cancer, works by inhibiting growth of blood vessels essential for tumor growth and survival.

"Thyroid cancers, when they grow, they need to form a lot of blood vessels," explained researcher Dr. Julian Molina, an assistant professor of oncology at the Mayo Clinic and co-author of the study. "For blood vessels to grow, the growth factor VEGF is required, and the drug targets this protein," he said.

Not only does the drug block production of new blood vessels, it also interferes with the tumor cells' ability to continue growing, Molina said.

Pazopanib, a pill that's taken daily, doesn't have the severe side effects of standard chemotherapy, Molina said. But it is expensive. According to the U.S. Department of Health and Human Services, the average wholesale price, which is used to set drug reimbursements, is $6,595 a month.

For this phase 2 study, published in the Sept. 17 online edition of The Lancet Oncology, Molina and colleagues tested the efficacy and safety of pazopanib in 37 patients with advanced, rapidly progressing thyroid cancer.

About half of the patients --18 -- had a partial response to the drug, meaning their tumor shrank 30 percent or more, Molina said. None had a complete response, in which the tumor disappears completely, he added.

Twelve patients are still responding to the drug about a year later. "Patients take the drug until the drug is no longer effective," Molina said, noting these patients still take pazopanib every day.

Side effects were commonplace but typically mild. The most usual were diarrhea, hypertension, and an increase in a liver enzyme called aminotransferase. However, 15 patients had to have their dose lowered because of side effects, the researchers note.

The U.S. National Cancer Institute funded the study.

Molina noted that larger phase 3 trials will start soon, and he hopes the drug, made by GlaxoSmithKline, will be approved for treating advanced thyroid cancer.

"One of the goals in cancer care is to make cancer a chronic disease," Molina said. "If we can make cancer something like that, where your pills keep your disease controlled, that's a good goal," he said.

One expert said that any effective therapy would be welcome.

"There are not a lot of treatment options available for people with advanced thyroid cancer," said Dr. Leonard Lichtenfeld, deputy chief medical officer at the American Cancer Society.

While the study results will need to be replicated and tested against other treatment options before pazopanib can be approved as a therapy for thyroid cancer, he agreed that the drug shows promise.

"Targeted therapies are providing some effective treatment options for patients with diseases that traditionally have been difficult to treat," he said. "I find that very helpful and very exciting."

More information

For more information on thyroid cancer, visit the American Cancer Society.

SOURCES: Julian Molina, M.D., Ph.D., assistant professor of oncology, Mayo Clinic, Rochester, Minn.; Leonard Lichtenfeld, M.D., M.A.C.P., deputy chief medical officer, American Cancer Society, Atlanta; Sept. 17, 2010, The Lancet Oncology, online


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Kings College London reveals promising techniques for extending the life of an organ transplant
2. Promising treatment for metastatic melanoma fast tracked by FDA
3. A promising target for developing treatments against Parkinsons disease
4. Natural lung material is promising scaffold for engineering lung tissue using embryonic stem cells
5. Depression overlooked in patients with hepatitis C; compromising HCV therapy
6. BRAF inhibitor shows promising preclinical activity against melanoma
7. New promising therapy against systemic sclerosis
8. Is the current recession compromising hospital quality?
9. Peaches, plums induce deliciously promising death of breast cancer cells
10. U of A discovery offers promising research for spinal-cord injury treatments
11. Study identifies promising treatment for aggressive lymphoma
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New Drug Promising for Advanced Thyroid Cancer
(Date:10/13/2017)... ... , ... “The Journey: From the Mountains to the Mission Field”: the story ... the Philippines. “The Journey: From the Mountains to the Mission Field” is the creation ... has taught all ages and currently teaches a class of ladies at her church, ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... sleep apnea using cutting-edge Oventus O2Vent technology. As many as 18 ... characterized by frequent cessation in breathing. Oral appliances can offer significant relief to ...
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( ... today the introduction of an innovative new design of the shoulder pad. The ... get maximum comfort while controlling your pain while using cold therapy. By utilizing ice ...
(Date:10/12/2017)... ... October 12, 2017 , ... Information about the technology: , ... to enable prevention of a major side effect of chemotherapy in children. Cisplatin ... patients. For cisplatin, hearing loss is FDA listed on-label as a dose limiting ...
(Date:10/12/2017)... D.C. (PRWEB) , ... October 12, 2017 , ... Leading ... their peers in Washington, D.C., for the 49th Congress of the International Society ... ., Vice President of the Center for Cancer and Blood Disorders at ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... , Oct. 11, 2017  Caris Life Sciences ... on fulfilling the promise of precision medicine, today announced ... joined Caris, Precision Oncology Alliance™ (POA) as its 17 ... centers, the St. Jude Crosson Cancer Institute will help ... the use of tumor profiling, making cancer treatment more ...
(Date:10/10/2017)... COUNTY, Calif. , Oct. 10, 2017  NDS received FDA ... Mobile  — a medical-grade battery-powered display stand specifically designed for endoscopy ... to transform technology into a clinical solution to support the improvement ... Innovative Design ... ZeroWire Mobile Wireless Solution ...
(Date:10/5/2017)... ROSEMONT, Ill. , Oct. 5, 2017 /PRNewswire-USNewswire/ ... American Association of Oral and Maxillofacial Surgeons (AAOMS) ... than opioids – to be used as a ... post-surgical pain. ... relationship, the AAOMS White Paper "Opioid Prescribing: Acute ...
Breaking Medicine Technology: