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RATIONALE: Pyridoxine (vitamin B6) and topical urea/lactic acid-based cream may prevent or lessen hand-foot syndrome caused by chemotherapy. It is not yet known whether giving pyridoxine with or without topical urea/lactic acid-based cream is more effective than topical urea/lactic acid-based cream alone or a placebo in preventing hand-foot syndrome.
PURPOSE: This randomized phase III trial is studying pyridoxine and topical urea/lactic acid-based cream to see how well they work compared with giving pyridoxine together with a placebo, giving topical urea/lactic acid-based cream together with a placebo, or giving two placebos in preventing hand-foot syndrome in patients who are receiving capecitabine for breast cancer or other cancer.
- Determine whether the prophylactic use of a topical urea/lactic acid cream can decrease the incidence/severity of capecitabine-caused palmar-plantar erythrodysesthesia in patients receiving capecitabine for breast and/or other cancer.
- Evaluate the potential toxicity of this cream.
- Determine whether the prophylactic use of vitamin B6 can decrease the incidence and/or severity of capecitabine-caused palmar-plantar erythrodysesthesia.
- Evaluate the potential toxicity of vitamin B6.
- Determine whether the prophylactic use of a topical urea/lactic acid cream in combination with vitamin B6 can decrease the incidence and/or severity of capecitabine caused palmar-plantar erythrodysesthesia.
OUTLINE: This is a randomized, double-blind, placebo-controlled study. Patients are stratified according to age (< 50 years old vs 50-60 years old vs > 60 years old), sex, capecitabine dose level (2000 mg/day vs 2500 mg/day), cancer type (breast vs other), and mode of therapy (adjuvant [including neo-adjuvant] therapy vs metastatic disease). Patients are randomized to 1 of 6 treatment arms (treatment arms I-IV closed to accrual as of 10/24/007).
- Arm I (closed to accrual as of 10/24/2007): Patients receive topical urea/lactic acid-based cream applied to palms and soles twice daily and oral pyridoxine once daily on days 1-21.
- Arm II (closed to accrual as of 10/24/2007): Patients receive topical urea/lactic acid-based cream as in arm I (closed to accrual as of 10/24/2007) and oral placebo once daily on days 1-21.
- Arm III (closed to accrual as of 10/24/2007): Patients receive placebo cream applied to palms and soles twice daily and pyridoxine as in arm I (closed to accrual as of 10/24/2007).
- Arm IV (closed to accrual as of 10/24/2007):Patients receive placebo cream as in arm III and oral placebo as in arm II (closed to accrual as of 10/24/2007).
- Arm V: Patients receive topical urea/lactic acid-based cream applied to palms and soles twice daily on days 1-21.
- Arm VI: Patients receive placebo cream applied to palms and soles twice daily on days 1-21.
In all arms, treatment repeats every 21 days for up to 4 courses in the absence of disease progression or unacceptable toxicity.
PROJECTED ACCRUAL: A total of 132 patients will be accrued for this study.
Allocation: Randomized, Control: Placebo Control, Masking: Double-Blind, Primary Purpose: Supportive Care
pyridoxine hydrochloride, urea/lactic acid-based topical cream, placebo
Mayo Clinic Scottsdale
National Cancer Institute (NCI)
Published on BioPortfolio: 2014-08-27T03:45:57-0400
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The 4-methanol form of VITAMIN B 6 which is converted to PYRIDOXAL PHOSPHATE which is a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, aminolevulinic acid. Although pyridoxine and Vitamin B 6 are still frequently used as synonyms, especially by medical researchers, this practice is erroneous and sometimes misleading (EE Snell; Ann NY Acad Sci, vol 585 pg 1, 1990).
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An amino acid produced in the urea cycle by the splitting off of urea from arginine.
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