Effects of Vitamin B12 Treatment in Singers
Vitamin B12 Treatment in Singers - Assessment of Effects Exploratory Pilot Study
1 other identifier
interventional
20
1 country
1
Brief Summary
In this study, the investigators aim to assess if vitamin B12 treatment demonstrates a beneficial effect on voice performance. If so, they wish to examine the relationship between the vitamin B12 treatment and the study participant's general well-being.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for early_phase_1
Started Oct 2017
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 2, 2017
CompletedStudy Start
First participant enrolled
October 1, 2017
CompletedFirst Posted
Study publicly available on registry
February 19, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2019
CompletedApril 9, 2019
April 1, 2019
1.5 years
July 2, 2017
April 5, 2019
Conditions
Outcome Measures
Primary Outcomes (5)
Evaluation of the Ability to Sing Easily (EASE) - Change
1 = Not at All, 2 = Mildly, 3 = Moderately, 4 = Extremely
Baseline, 1 Hr Post-Injection, 3 Hrs Post-Injection, 24 Hrs Post-Injection, 72 Hrs Post-Injection, 1 Wk Post-Injection
Singing Voice Handicap Index-10 (SVHI-10) - Change
0 = Never, 1 = Almost Never, 2 = Sometimes, 3 = Almost Always, 4 = Always
Baseline, 1 Hr Post-Injection, 3 Hrs Post-Injection, 24 Hrs Post-Injection, 72 Hrs Post-Injection, 1 Wk Post-Injection
0-10 Visual Analog Scale (VAS) - Change
The scale asks, "How confident are you that your voice will do what you need it to do right now?"; 0 = Not Confident At All, 10 = Extremely Confident
Baseline, 1 Hr Post-Injection, 3 Hrs Post-Injection, 24 Hrs Post-Injection, 72 Hrs Post-Injection, 1 Wk Post-Injection
Vocal Fold Swelling (Bastian et al., 2009) - Change
Happy Birthday, Staccato, Trill; 1 = Poor, 5 = Average, 10 = Excellent
Baseline, 1 Hr Post-Injection, 3 Hrs Post-Injection, 24 Hrs Post-Injection, 72 Hrs Post-Injection, 1 Wk Post-Injection
Voice Fatigue Index (VFI) - Change
0 = Never, 1 = Almost Never, 2 = Sometimes, 3 = Almost Always, 4 = Always
Baseline, 1 Hr Post-Injection, 3 Hrs Post-Injection, 24 Hrs Post-Injection, 72 Hrs Post-Injection, 1 Wk Post-Injection
Secondary Outcomes (2)
Short Warwick-Edinburgh Mental Wellbeing Scale (SWEMWBS) - Change
Baseline, 1 Hr Post-Injection, 3 Hrs Post-Injection, 24 Hrs Post-Injection, 72 Hrs Post-Injection, 1 Wk Post-Injection
Patients Health Questionnaire-9 for Depression - Change
Baseline, 1 Hr Post-Injection, 3 Hrs Post-Injection, 24 Hrs Post-Injection, 72 Hrs Post-Injection, 1 Wk Post-Injection
Study Arms (2)
Cyanocobalamin
EXPERIMENTALVitamin B12, 1,000 mg, Once
Placebo
PLACEBO COMPARATORNormal Saline Solution (0.9% Sodium Chloride), Once
Interventions
Eligibility Criteria
You may qualify if:
- Aged 18 to 65 years old
- An active singer who is presently singing
- Willing and able to comply with the study requirements
- Completed and signed an informed consent form.
You may not qualify if:
- Known vitamin B12 deficiency
- Active or recent vitamin B12 treatment (the subject must not receive vitamin B12 treatment for at least 4 weeks)
- Any known bleeding disorder
- Any known laryngeal pathology
- Plans to start any new treatment, oral/parenteral anticoagulant, supplement, or medication during the study period
- Scored above the highest 10 percentile of performance in all three voice evaluation questionnaires will be withdrawn from the study before the first injection (i.e., scored less than or equal to 7 in the Voice Fatigue Index (VFI), less than or equal to 6 in the Evaluation of the Ability to Sing Easily (EASE), and less than or equal to 4 in the Singing Voice Handicap Index 10 (SVHI-10))
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Keck Medicine of USC - Downtown Los Angeles
Los Angeles, California, 90017, United States
Related Publications (1)
Shoffel-Havakuk H, Lava CX, Reuven Y, Moog D, Odell K, Reder LS, Hapner ER, Johns MM 3rd. Effect of Vitamin B12 Injection on the Vocal Performance of Professional Singers: A Randomized, Double-blind, Placebo-Controlled, Crossover Trial. JAMA Otolaryngol Head Neck Surg. 2021 Jan 1;147(1):9-15. doi: 10.1001/jamaoto.2020.4026.
PMID: 33180098DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Hagit Shoffel-Havakuk, MD
University of Southern California
Study Design
- Study Type
- interventional
- Phase
- early phase 1
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
July 2, 2017
First Posted
February 19, 2018
Study Start
October 1, 2017
Primary Completion
April 1, 2019
Study Completion
April 1, 2019
Last Updated
April 9, 2019
Record last verified: 2019-04