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Interaction of Caffeine and Hydration on Voice
NCT01435837 · View on ClinicalTrials.gov ↗
Study Summary
The purpose of the study, Effects of Interaction of Caffeine and Hydration on Voice Performance, is to gather information about the effects of caffeine and hydration upon voice performance. The research question involves whether systemic hydration may reduce degradation on voice performance caused by caffeine ingestion. It is hypothesized that the hydration conditions will result in a less degraded vocal performance as compared with the nonhydration condition.The investigation involves abstention from any caffeine ingestion for 24 hours - from 8pm the day before testing to 8am the morning of testing. In addition, preparation for participation involves abstaining from ingesting any foods and liquids for 12 hours - from 8pm to 8am of the following morning. Each test will take about 10 minutes.
Conditions Studied
Interventions
- DRUG C2 (200mg of caffeine; 1/2 L of water)
- DRUG C3(200mg of caffeine; 1 L of water)
- DRUG C1 (200mg of caffeine, no water)
- DRUG Placebo (no caffeine, no water).
Study Locations (1)
Illinois
- Southern Illinois University Carbondale — Carbondale
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 80 participants |
| Start Date | 2010-10 |
| Est. Completion | 2013-05 |
| Phase | Early Phase 1 |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT01435837
The ClinicalTrials.gov registry entry for NCT01435837 describes a study currently listed as completed. It is categorized as Early Phase 1, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 80 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Southern Illinois University Carbondale, which has 1 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 1 condition, with Voice Disorders appearing as the primary indexed condition, and to 4 interventions — of which C2 (200mg of caffeine; 1/2 L of water) is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT01435837 reports 1 study location spanning 1 distinct geographic area — top geographies include Illinois. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT01435837 about?
NCT01435837 is a clinical study titled "Interaction of Caffeine and Hydration on Voice". The purpose of the study, Effects of Interaction of Caffeine and Hydration on Voice Performance, is to gather information about the effects of caffeine and hydration upon voice performance. The research question involves whether systemic hydration may reduce degradation on voice performance caused b...
What is the current status of trial NCT01435837?
This trial is currently completed. It is a Early Phase 1 study. The enrollment target is 80 participants. The study started on 2010-10. Estimated completion is 2013-05.
What conditions does trial NCT01435837 study?
This clinical trial studies the following conditions: Voice Disorders. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT01435837?
The interventions under investigation include: C2 (200mg of caffeine; 1/2 L of water) (DRUG), C3(200mg of caffeine; 1 L of water) (DRUG), C1 (200mg of caffeine, no water) (DRUG), Placebo (no caffeine, no water). (DRUG). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT01435837?
This trial is sponsored by Southern Illinois University Carbondale, which has 1 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT01435837 being conducted?
This trial has 1 study location across Illinois. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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