RTP Mobile Logo

75 yo w/ MSS T3 (1/20 node pos) tumor: Would you offer Oncotype DX® assay? If not, what Tx recommend?

Would you offer an Oncotype DX assay for an otherwise healthy 75-year-old patient with a Grade II, MSS T3 (1 out of 20 nodes positive) tumor?

If not, what adjuvant systemic therapy would you likely recommend for this patient?

Steven R Alberts, MD, MPH
Chair, Division of Medical Oncology
Professor of Oncology
Mayo Clinic
Rochester, Minnesota
Answer: Yes, if pt robust; Capecitabine or 5-FU/LV

For a robust 75-year-old patient I would order an Oncotype DX assay.

For a 75-year-old patient with Grade II, MSS T3 disease with 1 out of 20 positive nodes, I would recommend treatment with capecitabine or 5-FU/leucovorin.

Al B Benson III, MD
Professor of Medicine
Associate Director for
Clinical Investigations
Robert H Lurie Comprehensive
Cancer Center of
Northwestern University
Chicago, Illinois
Answer: If pt wants; FOLFOX or CAPOX

I would not order an Oncotype DX assay for this patient unless the patient were thinking that he or she wanted chemotherapy and would like to have more information on risk in order to make the decision whether to rule out chemotherapy as a treatment option (ie, if the Recurrence Score indicated low risk).

For this 75-year-old patient I would recommend treatment with an oxaliplatin-based regimen. I would talk to the patient about the controversies associated with the additional benefits of an oxaliplatin regimen.

Charles S Fuchs, MD, MPH
Director
Center for Gastrointestinal Cancer
Dana-Farber/Harvard Cancer Center
Professor of Medicine
Harvard Medical School
Boston, Massachusetts
Answer: No; FOLFOX

I would not order an Oncotype DX assay for this patient because the results would not affect my treatment decision.

For this older patient with Grade II, MSS disease that is node positive, I would recommend treatment with FOLFOX considering that the patient is otherwise healthy.

Richard M Goldberg, MD
Professor of Medicine
Physician-in-Chief, OSUCCC -
James Cancer Hospital and
Richard J Solove Research Institute
Klotz Family Chair in Cancer Research
The Ohio State University
Columbus, Ohio
Answer: Possibly yes, after discussion; 5-FU

I would order an Oncotype DX assay after a discussion with the patient, but I would not order it routinely.

I’d probably recommend 5-FU alone for this 75-year-old patient with 1 out of 20 positive nodes. Selectively, for patients over the age of 65 I offer FOLFOX rather than 5-FU, but the most recent data suggest that adding oxaliplatin to 5-FU may not provide a benefit to older patients.

Axel Grothey, MD
Professor of Oncology
Department of Medical Oncology
Mayo Clinic
Rochester, Minnesota
Answer: No; Capecitabine

No, I would not order an Oncotype DX assay for this 75-year-old patient.

For Stage III disease the default is to use oxaliplatin-based therapy. The caveat is that we don’t have good data on whether patients older than 75 benefit from the addition of oxaliplatin to a fluoropyrimidine. For this older patient with 1 positive node I would recommend treatment with capecitabine alone.

Howard S Hochster, MD
Associate Director (Clinical Research)
Yale Cancer Center
Professor of Medicine
Yale School of Medicine
New Haven, Connecticut
Answer: Yes; FOLFOX

Yes, I would order an Oncotype DX assay in this clinical scenario.

I would probably recommend treatment with FOLFOX for a 75-year-old patient with Grade II, MSS T3 disease with 1 out of 20 positive nodes. I don’t believe that oxaliplatin adds much more toxicity to the regimen. Also, some data suggest that elderly patients tolerate oxaliplatin as well as younger patients.

Herbert I Hurwitz, MD
Associate Professor of Medicine
Division of Hematology/Oncology
Clinical Director, Phase I Program
Co-leader, GI Oncology Program
Duke University Medical Center
Durham, North Carolina
Answer: Probably; 5-FU

I would most likely order an Oncotype DX assay for such a patient. If the patient was not fit, however, and capecitabine or 5-FU was not in the cards, then I would not order the assay. Given an extremely fit 75-year-old patient, I might also discuss the pros and cons of trying to manage the patient’s disease as I would for a 65-year-old.

I would probably administer 5-FU alone to the majority of patients in this setting. I would recommend treatment with an oxaliplatin-based regimen for the subset of patients in this setting with the best performance status or for those at higher risk. The lower the risk or performance status, the more the issue becomes whether to use either a fluoropyrimidine or nothing.

Wells A Messersmith, MD
Professor and Director
GI Medical Oncology Program
Co-Leader
Developmental Therapeutics Program
University of Colorado Cancer Center
Aurora, Colorado
Answer: No; FOLFOX

No, I would not order an Oncotype DX assay for this patient.

I would administer adjuvant FOLFOX to this 75-year-old patient with Grade II node-positive disease.