This is a two-arm randomized clinical trial in which 80 participants with Vitamin D deficiency and scheduled to begin taxane-based chemotherapy will be randomized to either: 1) prescribed vitamin D replacement or 2) standard of care.
This is a two-arm randomized clinical trial in which 80 participants with Vitamin D deficiency and scheduled to begin taxane-based chemotherapy will be randomized to either: 1) prescribed vitamin D replacement or 2) standard of care (advised to take over the counter (OTC) vitamin D). All participants will have blood drawn for serum vitamin D analysis at Weeks 4, 8, 12, and 24 in order to document Vitamin D levels and titrate vitamin D dose (if needed in the treatment arm). Participants in both arms will complete self-report measures of neuropathic pain at baseline, Week 12, and Week 24.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
SINGLE
Enrollment
120
Vitamin D2 50,000IU by mouth once weekly for 8 weeks then once per month thereafter.
Vitamin D3 5,000IU by mouth daily
Virginia Commonwealth University
Richmond, Virginia, United States
Self-reported neuropathic pain- sensory symptoms
The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-CIPN (EORTC-QLQ-CIPN20) is a 20-item self-report questionnaire that includes a 9-item subscale assessing sensory symptoms of peripheral neuropathy. The questionnaire asks respondents to think about their past week and indicate to what extent they experienced symptoms of peripheral neuropathy: not at all; a little; quite a bit; or very much. The EORTC-QLQ-CIPN20 will be administered at baseline and at 12 weeks in order to assess change in scores over time.
Time frame: 12 Weeks
Self-reported neuropathic pain- motor symptoms
The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-CIPN (EORTC-QLQ-CIPN20) is a 20-item self-report questionnaire that includes a 8-item subscale assessing motor symptoms of peripheral neuropathy. The questionnaire asks respondents to think about their past week and indicate to what extent they experienced symptoms of peripheral neuropathy: not at all; a little; quite a bit; or very much. The EORTC-QLQ-CIPN20 will be administered at baseline and at 12 weeks in order to assess change in scores over time.
Time frame: 12 weeks
Self-reported neuropathic pain- autonomic symptoms
The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-CIPN (EORTC-QLQ-CIPN20) is a 20-item self-report questionnaire that includes a 3-item subscale assessing autonomic symptoms of peripheral neuropathy. The questionnaire asks respondents to think about their past week and indicate to what extent they experienced symptoms of peripheral neuropathy: not at all; a little; quite a bit; or very much. The EORTC-QLQ-CIPN20 will be administered at baseline and at 12 weeks in order to assess change in scores over time.
Time frame: 12 weeks
Self-reported neuropathic pain
The number of participants with self reported neuropathic pain using the PROMIS Scale v. 2.0 - Neuropathic Pain Quality 5a. This 5-item questionnaire asks respondents to indicate the extent to which they experienced symptoms of peripheral neuropathy in the past week on a scale from 1 ("not at all") to 5 ("very much"). The PROMIS Scale v. 2.0 - Neuropathic Pain Quality 5a will be administered at baseline and at 12 weeks in order to assess change in scores over time.
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Time frame: 12 Weeks
Clinical diagnosis of peripheral neuropathy
The number of participants with a clinical diagnosis of peripheral neuropathy. Chart review will be performed in order to determine whether an independent clinical diagnosis of peripheral neuropathy has been made for study participants.
Time frame: 12 Weeks