A phase I/II study of trimetrexate and capecitabine in patients with advanced refractory colorectal cancer

Matin, Khalid, Jacobs, Samuel A., Richards, Thomas, Wong, Michael K. , Earle, Martin, Evans, Terry, Troetschel, Monica, Ferri, William, Friedland, David, Pinkerton, Richard, Volkin, Robert, Wieand, Samuel and Ramanathan, Ramesh K. (2005) A phase I/II study of trimetrexate and capecitabine in patients with advanced refractory colorectal cancer. American Journal of Clinical Oncology: Cancer Clinical Trials, 28 5: 439-444. doi:10.1097/01.coc.0000170797.36351.3a


Author Matin, Khalid
Jacobs, Samuel A.
Richards, Thomas
Wong, Michael K.
Earle, Martin
Evans, Terry
Troetschel, Monica
Ferri, William
Friedland, David
Pinkerton, Richard
Volkin, Robert
Wieand, Samuel
Ramanathan, Ramesh K.
Title A phase I/II study of trimetrexate and capecitabine in patients with advanced refractory colorectal cancer
Journal name American Journal of Clinical Oncology: Cancer Clinical Trials   Check publisher's open access policy
ISSN 0277-3732
1537-453X
Publication date 2005-10-01
Year available 2005
Sub-type Article (original research)
DOI 10.1097/01.coc.0000170797.36351.3a
Open Access Status Not yet assessed
Volume 28
Issue 5
Start page 439
End page 444
Total pages 6
Place of publication Philadelphia, PA, United States
Publisher Lippincott Williams & Wilkins
Language eng
Formatted abstract
Objective: We tested the hypothesis that the combination of trimetrexate (TMTX) and capecitabine (CAP) would be active in patients with previously treated metastatic colorectal cancer (CRC). Because the optimum dose of this combination was unknown, we used a phase I/II design.

Methods: In the phase I cohort, patients received 110 mg/m2 TMTX intravenously weekly ×6 and CAP starting at 750 mg/m2 orally twice daily from days 2 to 15 and 23 to 36 (one cycle). Cycles were repeated every 8 weeks. The phase II doses were 110 mg/m2 TMTX and 1000 mg/m2 CAP orally twice daily.

Results: Thirty-two patients were entered. All patients had prior 5-fluorouracil therapy and 94% had prior exposure to irinotecan. Grade 3/4 toxicities included abdominal pain in 4 patients (12.5%) and vomiting in 3 patients (9.4%). Twenty-seven patients were evaluable for response: one patient each had a complete response and a partial response for an overall response rate of 7.4%. The median time to progression was 3.3 months (95% confidence interval [CI], 1.6-3.7 months) and the median overall survival was 5.9 months (95% CI, 5.2-10.2 months).

Conclusions: The combination of TMTX and CAP is well tolerated. However, recent studies have shown more active regimens in the second- and third-line metastatic setting. Copyright
Keyword Capecitabine
Colorectal cancer
Trimetrexate
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Mater Health Services Publications
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