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Vitamin B12 for Aromatase Inhibitors Musculoskeletal Symptoms

A Single Arm Phase II Study of Oral Vitamin B12 for the Treatment of Aromatase Inhibitors (AI) Associated Musculoskeletal Symptoms in Women With Early Stage Breast Cancer

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03069313
Enrollment
41
Registered
2017-03-03
Start date
2015-10-19
Completion date
2016-10-27
Last updated
2018-02-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Relief of Joint Pain

Keywords

Aromatase Inhibitor, Breast Cancer, Arthralgia, Musculoskeletal symptoms, Joint pain

Brief summary

Significant Aromatase Inhibitor-associated toxicity, affects as many as 50% of patients with breast cancer leading to early discontinuation of this life-saving cancer treatment. No effective pharmacologic therapy has yet been identified for management of these symptoms, as many patients do not experience relief of symptoms with analgesic therapy. Vitamin B12, whether as injection or oral forms, has been used as a naturopathic product to provide relief for joint pain caused by arthritis. This effect has not been studied in the setting of Aromatase Inhibitor-Associated Musculoskeletal Symptoms (AIMSS).

Detailed description

Primary Objectives: a. To assess whether daily oral Vitamin B12 decreases average joint pain in women with aromatase inhibitor-associated musculoskeletal symptoms (AIMSS), as measured at baseline, 6 weeks and at 12 weeks by the modified Brief Pain Inventory Short Form (BPI-SF). Secondary Objectives: 1. To investigate whether daily vitamin B12 improves functional quality of life as measured by the Functional Assessment of Cancer Therapy-Endocrine Scale (FACT-ES); 2. To explore the impact of treatment on serum inflammatory cytokine levels (C Reactive Protein) with 12 weeks of treatment between baseline and 12 weeks.

Interventions

DIETARY_SUPPLEMENTVitamin B12

Vitamin B12 2500 micrograms sublingually per day over the course of 90 days (+/- 10 days)

Sponsors

Texas Tech University Health Sciences Center, El Paso
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Vitamin B12 is to be taken sublingually on a daily basis for 90 days

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Sign informed consent and Pain level \> 4 in the BPI scale, * Stage I-III

Exclusion criteria

* \<18 yrs * Stage IV * BPI Score \<4 * Zubrod score \>2

Design outcomes

Primary

MeasureTime frameDescription
Percentage Change in Average Joint Pain in Women With Aromatase Inhibitor-associated Musculoskeletal Symptoms (AIMSS) Compared to Baseline as Measured by the Brief Pain Inventory Short Form (BPI-SF).Baseline and 90 days (+/- 10 days)The Brief Pain Inventory - Short Form (BPI- SF) average pain score used. This item has a scale of 0 to 10 with 0 indicating No pain and 10 indicating Pain as bad as you can imagine We expect at least 20% improvement in BPI-SF pain scores. Participants were asked to rate worst pain an average pain within the last 24 hours.

Secondary

MeasureTime frameDescription
Percentage Change in Worst Pain at the End of Treatment .Baseline and 90 days (+/- 10 days)Analysis of the data collected at baseline and at the end of treatment in the BPI-SF questionnaire. The Brief Pain Inventory - Short Form (BPI- SF) worst pain score used. This item has a scale of 0 to 10 with 0 indicating No pain and 10 indicating Pain as bad as you can imagine. Participants were asked to rate worst pain an average pain within the last 24 hours.
Percentage Change in Functional Quality of Life as Measured by the Functional Assessment of Cancer Therapy-Endocrine Scale (FACT-ES)Baseline and 90 days (+/- 10 days)All of the items in this questionnaire have a 5 scale rating, from not at all (0) to very much (4). Outcomes were measured pre and post treatment. Version 4 of the FACT-ES contains 3 subscales with seven questions: Physical Well-Being (PWB) (score range 0-28), Functional Well-Being (FWB) (score range 0-28), and Social and Well-Being (SWB) (score range 0-28); Emotional Well-Being (EWB) (score range 0-24) with six questions, and the Endocrine Symptom Subscale (ESS) (score range 0-76) containing 19 questions. For all subscale a higher score represents better quality of life.
Percentage Change of Serum Levels of Vitamin B12, C-reactive Protein (CRP), Homoscyteine (HCys) and Methylmalonic Acid (MMA).Baseline and at 90 days (+/- 10 days)Inflammatory markers were measured pre and post treatment.

Participant flow

Recruitment details

we needed at least a total of 30 patients to achieve more than 85% power to detect the differences in BPI-SF pain scores relative to baseline using a two tailed paired t-test with 5% level of significance. After accounting for 15% dropouts, we estimated to include at least 35 patients in the study.

Pre-assignment details

IRB approved recruitment of 50 participants

Participants by arm

ArmCount
Arm I
Oral Vitamin B12 Vitamin B12: Vitamin B12 2500 micrograms sublingually per day over the course of 90 days (+/- 10 days)
41
Total41

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event5

Baseline characteristics

CharacteristicArm I
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
41 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
41 Participants
Region of Enrollment
United States
41 participants
Sex: Female, Male
Female
41 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 36
other
Total, other adverse events
14 / 36
serious
Total, serious adverse events
0 / 36

Outcome results

Primary

Percentage Change in Average Joint Pain in Women With Aromatase Inhibitor-associated Musculoskeletal Symptoms (AIMSS) Compared to Baseline as Measured by the Brief Pain Inventory Short Form (BPI-SF).

The Brief Pain Inventory - Short Form (BPI- SF) average pain score used. This item has a scale of 0 to 10 with 0 indicating No pain and 10 indicating Pain as bad as you can imagine We expect at least 20% improvement in BPI-SF pain scores. Participants were asked to rate worst pain an average pain within the last 24 hours.

Time frame: Baseline and 90 days (+/- 10 days)

Population: A total of forty-one patients were enrolled, five patients withdrew, leaving thirty-six patients to complete the study.

ArmMeasureValue (MEAN)Dispersion
Arm IPercentage Change in Average Joint Pain in Women With Aromatase Inhibitor-associated Musculoskeletal Symptoms (AIMSS) Compared to Baseline as Measured by the Brief Pain Inventory Short Form (BPI-SF).-33.8 Percentage changeStandard Deviation 34.1
p-value: <0.0001t-test, 1 sided
Secondary

Percentage Change in Functional Quality of Life as Measured by the Functional Assessment of Cancer Therapy-Endocrine Scale (FACT-ES)

All of the items in this questionnaire have a 5 scale rating, from not at all (0) to very much (4). Outcomes were measured pre and post treatment. Version 4 of the FACT-ES contains 3 subscales with seven questions: Physical Well-Being (PWB) (score range 0-28), Functional Well-Being (FWB) (score range 0-28), and Social and Well-Being (SWB) (score range 0-28); Emotional Well-Being (EWB) (score range 0-24) with six questions, and the Endocrine Symptom Subscale (ESS) (score range 0-76) containing 19 questions. For all subscale a higher score represents better quality of life.

Time frame: Baseline and 90 days (+/- 10 days)

Population: postemneopausal women with ER + , Stages I-III breast cancer

ArmMeasureGroupValue (MEAN)Dispersion
Arm IPercentage Change in Functional Quality of Life as Measured by the Functional Assessment of Cancer Therapy-Endocrine Scale (FACT-ES)SWB10.02 Percentage changeStandard Deviation 27.7
Arm IPercentage Change in Functional Quality of Life as Measured by the Functional Assessment of Cancer Therapy-Endocrine Scale (FACT-ES)EWB10.8 Percentage changeStandard Deviation 38.6
Arm IPercentage Change in Functional Quality of Life as Measured by the Functional Assessment of Cancer Therapy-Endocrine Scale (FACT-ES)PWB46.3 Percentage changeStandard Deviation 62.5
Arm IPercentage Change in Functional Quality of Life as Measured by the Functional Assessment of Cancer Therapy-Endocrine Scale (FACT-ES)FWB18 Percentage changeStandard Deviation 45
Arm IPercentage Change in Functional Quality of Life as Measured by the Functional Assessment of Cancer Therapy-Endocrine Scale (FACT-ES)ESS15.6 Percentage changeStandard Deviation 19.6
p-value: 0.133t-test, 2 sided
Comparison: This analysis is comparing EWB before and after treatment.p-value: 0.056t-test, 2 sided
Comparison: This analysis is comparing PWB before and after treatment.p-value: <0.0001t-test, 2 sided
Comparison: This analysis is comparing FWB before and after treatment.p-value: 0.09t-test, 2 sided
Comparison: This analysis is comparing ESS before and after treatment.p-value: <0.0001t-test, 2 sided
Secondary

Percentage Change in Worst Pain at the End of Treatment .

Analysis of the data collected at baseline and at the end of treatment in the BPI-SF questionnaire. The Brief Pain Inventory - Short Form (BPI- SF) worst pain score used. This item has a scale of 0 to 10 with 0 indicating No pain and 10 indicating Pain as bad as you can imagine. Participants were asked to rate worst pain an average pain within the last 24 hours.

Time frame: Baseline and 90 days (+/- 10 days)

Population: Postmenopausal women with ER+ breast cancer, stages I-III on aromatase inhibitors and musculoskeletal pain (average pain level \> or=4 using BPI-SF)

ArmMeasureValue (MEAN)Dispersion
Arm IPercentage Change in Worst Pain at the End of Treatment .-23.03 Percentage changeStandard Deviation 43.1
p-value: 0.0003t-test, 2 sided
Secondary

Percentage Change of Serum Levels of Vitamin B12, C-reactive Protein (CRP), Homoscyteine (HCys) and Methylmalonic Acid (MMA).

Inflammatory markers were measured pre and post treatment.

Time frame: Baseline and at 90 days (+/- 10 days)

Population: postmenopasual women receiving AI

ArmMeasureGroupValue (MEDIAN)Dispersion
Arm IPercentage Change of Serum Levels of Vitamin B12, C-reactive Protein (CRP), Homoscyteine (HCys) and Methylmalonic Acid (MMA).HCys-24.6 Percentage changeStandard Deviation 19.75
Arm IPercentage Change of Serum Levels of Vitamin B12, C-reactive Protein (CRP), Homoscyteine (HCys) and Methylmalonic Acid (MMA).MMA-7.1 Percentage changeStandard Deviation 81.65
Arm IPercentage Change of Serum Levels of Vitamin B12, C-reactive Protein (CRP), Homoscyteine (HCys) and Methylmalonic Acid (MMA).B12209.8 Percentage changeStandard Deviation 191.3
Arm IPercentage Change of Serum Levels of Vitamin B12, C-reactive Protein (CRP), Homoscyteine (HCys) and Methylmalonic Acid (MMA).CRP64.2 Percentage changeStandard Deviation 298.5

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026