Tips From a Member of Our Medical Advisory Board

Al B. Benson III, MD, FACP FASCO is Professor of Medicine, Feinberg School of Medicine,  and Associate Director for Clinical Investigations, Robert H. Lurie Comprehensive Cancer Center, Northwestern University

One of the nation’s most respected experts in colorectal cancer, Dr. Benson has supported and worked with Fight Colorectal Cancer for years as an active member of our Medical Advisory Board.

Written by Dr. Al Benson, March 18 2013, Chicago, Illinois

Although March is Colorectal Cancer Awareness Month, this disease is so frequent yet in most cases preventable that we should be striving every month of the year to make even more people aware of the importance of colorectal cancer and colorectal cancer screening. The good news is that we are seeing a trend that showing more people are getting screened and more people are surviving this disease. Even so, we have much more work to do to prevent and treat colorectal cancer.

Important information to know – from screening to diagnosis for colorectal cancer:

1) Know your family history. In some cases, colorectal cancer risk is inherited and the genetic risk can be passed on to generations within a family. For those with a risk for inherited colorectal cancer, genetic counseling and testing is strongly recommended. Also if you have an immediate family member who has had colorectal cancer, your risk for developing the disease is greater. Let your doctor know about the details of your family history. If you are unsure of your family history, discuss it with your relatives to be as complete as possible.

2) If you are of African-American descent, you are potentially at higher risk for developing colorectal cancer and screening should begin earlier, at age 45.

3) There is growing recognition that obesity, diabetes and lack of exercise are contributing factors to the risk of developing colorectal cancer and these risks should also be discussed with your doctor.

4) Talk with your doctor if you experience bleeding from the rectum. Many people assume bleeding is “just hemorrhoids,” which might be true, but it also could be a sign of colorectal polyps and/or cancer. Discuss any bleeding with your doctor as well as other symptoms including change in bowel habits (e.g., recent but persistent diarrhea and or constipation), persistent abdominal pain, weight loss or loss of appetite, or increasing fatigue.

5) If you are diagnosed with colorectal cancer, make sure you ask which members of the medical team will be important for your care. A gastroenterologist, surgeon, medical oncologist, radiation oncologist (for rectal cancer), nurse, nutritionist, psychologist, social worker, financial counselor, genetic counselor are some examples of team members who you may really need to help with your diagnosis and treatment.

6) Ask if you are a potential candidate to participate in a clinical trial. All of our current therapies and advancements in the treatment of colorectal cancer have come about because people through the years participated in a clinical trial. Oncologists consider clinical trials to be one component of the standard of care. Further advances in colorectal cancer treatment will require many people willing to enroll in our clinical trials.

7) There are resources available for you. Fight Colorectal Cancer has great information available for you. The National Comprehensive Cancer Network (NCCN) has created guidelines for treatment used around the world by health care professionals. There is a patient version of colorectal cancer guidelines  that you can obtain on the internet and bring to your doctor.

I hope some of these tips will offer you and your family some additional guidance as we continue our efforts to control this common cancer.

Photo credit: Bayer Pharmaceuticals

The FDA today approved the use of the drug regorafenib (brand name Stivarga) for patients whose metastatic colorectal cancer has progressed despite all currently approved treatment regimens.

This is the second new drug approved by the FDA recently after a drought of 5 years in approving new treatments for metastatic colorectal cancer (mCRC). Regorafenib was placed into the  FDA’s “fast-track” approval process after the international, multicenter Phase III CORRECT trial  showed improved survival (from 5 to 6.4 months) in all mCRC patients, including those having both non-mutated and mutated KRAS types. Read the rest of this entry »

While there weren’t new blockbuster announcements for colorectal cancer this year at the American Society for Clinical Oncology’s (ASCO) Annual Meeting, there was plenty of focus on making what we already have work better and on choosing the patients who will benefit the most from treatments, as well as those who might not be helped at all. (Note, many of these issues will be discussed in detail on our upcoming patient webinar.)

Highlights:

• While adding oxaliplatin to 5-FU improves five year survival slightly for stage II colon cancer, it increases side effects, particularly tingling and numbness in the feet.  An analysis of several NSABP trials found that two or three more stage II patients out of every 100 would be alive five years later if they were given oxaliplatin in addition to 5-FU than if they only got 5-FU.  Risk of cancer returning was similar with an absolute improvement of 3 to 5 percent, depending on risk factors.  Doctors and patients need to think about whether the small benefit is worth the risk of neuropathy that may become permanent.
• Two speakers at the Saturday colorectal cancer oral abstract session addressed adding oxaliplatin to 5-FU as part of pre-surgical chemoradiation treatment for rectal cancer.  NSABP R-04 found that oxaliplatin did not help increase complete response rates, avoid colostomies, or downstage cancers. It did increase diarrhea significantly. On the other hand, early results from a German trial did find an increase in complete responses with oxaliplatin, and they didn’t see worse side effects.
• In the PRIME phase III clinical trial, patients receiving their first treatment for advanced colorectal cancer who had normal or wild-type KRAS genes in their tumor did better when Vectibix® (panitumumab) was added to FOLFOX chemotherapy.  But those patients whose tumor KRAS was mutated actually did worse than patients who only got chemotherapy.
• Side effects, while difficult for patients, may predict better outcomes from treatment.  Patients who got capecitabine as part of pre-surgical chemoradiation and developed hand-foot syndrome had fewer recurrences three years later and better survival at five years.  In another study of breast, lung, and colorectal cancer, patients who got high blood pressure while on Avastin® (bevacizumab) lived longer and it took longer before their cancer got worse.

Read the rest of this entry »

Diagnosis and Treatment | CRC Symptoms | Diagnostic Tests | Staging | Stay in Touch with us

“Symptoms and Risks” fact sheet (PDF)
Available for free download right here!

People come to an initial medical work-up for colon or rectal cancer from different places. They may have had a suspicious polyp or cancer found during a routine screening. They may be experienced symptoms that might be caused by colorectal cancer. Getting an accurate diagnosis is critical because treatment for colorectal cancer depends on the diagnosis. For example, treatment for colon cancer is different than treatment for rectal cancer, and treatment for cancer which has spread outside of the colon is different than treatment for cancer which is limited to the colon. Getting an accurate diagnosis can take time and many different tests. It may require surgery, and examination of surgically-removed tissue to determine whether the cancer has spread. This process can involve several health professionals including:

• The gastroenterologist who will perform a colonoscopy if it has not been already done and remove tissue for biopsy. The gastroenterologist may remove suspicious polyps for pathology or, if they are large, leave them in place for later surgical removal.
• Pathologists who will examine biopsies under the microscope to identify precancerous cells or cancer (malignancy.)
• Radiologists who will perform CT-scans or other x-ray tests to see if the cancer has spread to other parts of your body.
• A general surgeon or colorectal surgeon who will give you a physical examination and ask about your medical history, order blood tests, review reports from gastroenterologist, radiologist, and pathology, and help decide on an initial treatment plan.
• If necessary, a medical oncologist who deals with chemotherapy treatment or a radiation oncologist may be involved at this point or they may join the treatment team after surgery. Specialized surgeons may also be called in to examine you if there is a possibility that the cancer has spread beyond your colon.

Choosing a medical team is an important initial step in getting an accurate diagnosis, especially if rectal surgery is involved. Work with your medical team to make sure that your evaluation, diagnosis, and staging are done carefully and thoroughly.. Get a second opinion if there is uncertainty about issues such as what tests are necessary, if surgery is the right first step, and whether staging is accurate. A second opinion at a large cancer center, particularly a National Cancer Institute designated cancer cancer or a member of the National Comprehensive Cancer Network can be valuable even early in the diagnostic process.

• Locate an NCI Cancer Center in your state.
• Locate an NCCN Comprehensive Cancer Center

Where Can You Go for More Information?

American Cancer Society How is Colorectal Cancer Diagnosed? Cancer.Net When the Doctor Says Cancer along with a podcast can help you learn questions to ask about your cancer and its diagnosis and how to understand and manage the information you get from your doctor.

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