Healthy Volunteers
Conditions
Brief summary
Objective: To assess the cardiac effects of a an energy drink on blood pressure and heart rhythm in healthy subjects. Study design: Double blind, placebo controlled, cross-over Study population: Healthy human volunteers (active-duty) between age 18 to 40 years with no other medical conditions. Intervention: Energy drink or Placebo Primary outcome: Change in office systolic blood pressure
Interventions
Energy drink, 2oz twice daily for 7 days
Water, lime juice and cherry flavoring
Sponsors
Study design
Eligibility
Inclusion criteria
* Healthy volunteers between ages 18-40 years * ONLY as needed use of ibuprofen or acetamenophen * Active duty military * DoD beneficiary or Civilian Government Employees
Exclusion criteria
* No other co-morbid conditions * No active prescription or OTC drug use * Not pregnant or planning to become pregnant during study participation
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Office Systolic Blood Pressure | At baseline and 7 days post energy drink and placebo consumption | SBP = Systolic Blood Pressure measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Max Heart Rate After a Single Shot and After Chronic Consumption | At baseline and 7 days post energy drink and placebo consumption | Maximum heart rate measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days |
| Max PR-interval After a Single Shot and After Chronic Consumption | At baseline and 7 days post energy drink and placebo consumption | Maximum PR-interval measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days |
| Office DBP After a Single Energy Shot and After Chronic Consumption | At baseline and 7 days post energy drink and placebo consumption | DBP = Diastolic Blood Pressure measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days. |
| Max QT Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | At baseline and 7 days post energy drink and placebo consumption | Max QT interval measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days |
| Max QTc Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | At baseline and 7 days post energy drink and placebo consumption | Max QTc interval measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days |
| Max QRS Duration After a Single Shot and After Chronic Consumption | At baseline and 7 days post energy drink and placebo consumption | Max QRS duration measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days |
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| All Study Participants Energy drink: Energy drink, 2oz twice daily for 7 days Placebo: Water, lime juice and cherry flavoring | 26 |
| Total | 26 |
Baseline characteristics
| Characteristic | All Study Participants |
|---|---|
| Age, Categorical <=18 years | 0 Participants |
| Age, Categorical >=65 years | 0 Participants |
| Age, Categorical Between 18 and 65 years | 26 Participants |
| Age, Continuous Age | 28.3 years STANDARD_DEVIATION 5.77 |
| Race/Ethnicity, Customized African American | 2 participants |
| Race/Ethnicity, Customized Asian | 2 participants |
| Race/Ethnicity, Customized Caucasian | 20 participants |
| Race/Ethnicity, Customized Hispanic | 2 participants |
| Region of Enrollment United States | 26 participants |
| Sex: Female, Male Female | 6 Participants |
| Sex: Female, Male Male | 20 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — |
| other Total, other adverse events | 0 / 26 | 0 / 26 |
| serious Total, serious adverse events | 0 / 26 | 0 / 26 |
Outcome results
Change in Office Systolic Blood Pressure
SBP = Systolic Blood Pressure measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days.
Time frame: At baseline and 7 days post energy drink and placebo consumption
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Energy Drink | Change in Office Systolic Blood Pressure | SBP at baseline | 128 mmHg | Standard Deviation 9.98 |
| Energy Drink | Change in Office Systolic Blood Pressure | SBP at Day 7 | 127 mmHg | Standard Deviation 9.88 |
| Placebo | Change in Office Systolic Blood Pressure | SBP at baseline | 123 mmHg | Standard Deviation 8.49 |
| Placebo | Change in Office Systolic Blood Pressure | SBP at Day 7 | 124 mmHg | Standard Deviation 8.29 |
Max Heart Rate After a Single Shot and After Chronic Consumption
Maximum heart rate measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days
Time frame: At baseline and 7 days post energy drink and placebo consumption
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Energy Drink | Max Heart Rate After a Single Shot and After Chronic Consumption | Baseline | 69.8 beats per minute | Standard Deviation 9.5 |
| Energy Drink | Max Heart Rate After a Single Shot and After Chronic Consumption | Day 7 | 68.1 beats per minute | Standard Deviation 9.21 |
| Placebo | Max Heart Rate After a Single Shot and After Chronic Consumption | Baseline | 70.3 beats per minute | Standard Deviation 8.41 |
| Placebo | Max Heart Rate After a Single Shot and After Chronic Consumption | Day 7 | 67 beats per minute | Standard Deviation 7.7 |
Max PR-interval After a Single Shot and After Chronic Consumption
Maximum PR-interval measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days
Time frame: At baseline and 7 days post energy drink and placebo consumption
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Energy Drink | Max PR-interval After a Single Shot and After Chronic Consumption | Baseline | 166 msec | Standard Deviation 18.8 |
| Energy Drink | Max PR-interval After a Single Shot and After Chronic Consumption | Day 7 | 164 msec | Standard Deviation 15 |
| Placebo | Max PR-interval After a Single Shot and After Chronic Consumption | Baseline | 161 msec | Standard Deviation 17.3 |
| Placebo | Max PR-interval After a Single Shot and After Chronic Consumption | Day 7 | 164 msec | Standard Deviation 16.7 |
Max QRS Duration After a Single Shot and After Chronic Consumption
Max QRS duration measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days
Time frame: At baseline and 7 days post energy drink and placebo consumption
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Energy Drink | Max QRS Duration After a Single Shot and After Chronic Consumption | Baseline | 92.1 msec | Standard Deviation 9.18 |
| Energy Drink | Max QRS Duration After a Single Shot and After Chronic Consumption | Day 7 | 94.8 msec | Standard Deviation 10.5 |
| Placebo | Max QRS Duration After a Single Shot and After Chronic Consumption | Baseline | 92.3 msec | Standard Deviation 9.26 |
| Placebo | Max QRS Duration After a Single Shot and After Chronic Consumption | Day 7 | 93.4 msec | Standard Deviation 8.76 |
Max QTc Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7
Max QTc interval measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days
Time frame: At baseline and 7 days post energy drink and placebo consumption
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Energy Drink | Max QTc Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | Baseline | 422 msec | Standard Deviation 15.3 |
| Energy Drink | Max QTc Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | Day 7 | 426 msec | Standard Deviation 20.1 |
| Placebo | Max QTc Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | Baseline | 424 msec | Standard Deviation 18 |
| Placebo | Max QTc Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | Day 7 | 419 msec | Standard Deviation 21.5 |
Max QT Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7
Max QT interval measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days
Time frame: At baseline and 7 days post energy drink and placebo consumption
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Energy Drink | Max QT Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | Baseline | 414 msec | Standard Deviation 21.9 |
| Energy Drink | Max QT Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | Day 7 | 422 msec | Standard Deviation 21.2 |
| Placebo | Max QT Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | Baseline | 412 msec | Standard Deviation 16.2 |
| Placebo | Max QT Interval After a Single Energy Shot or Placebo Consumption After Day 1 and After Chronic Consumption After Day 7 | Day 7 | 418 msec | Standard Deviation 21 |
Office DBP After a Single Energy Shot and After Chronic Consumption
DBP = Diastolic Blood Pressure measured at baseline (after a single energy shot or placebo consumption) and after chronic consumption for 7 days.
Time frame: At baseline and 7 days post energy drink and placebo consumption
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Energy Drink | Office DBP After a Single Energy Shot and After Chronic Consumption | Baseline | 82.7 mmHg | Standard Deviation 7.79 |
| Energy Drink | Office DBP After a Single Energy Shot and After Chronic Consumption | Day 7 | 82.2 mmHg | Standard Deviation 6.84 |
| Placebo | Office DBP After a Single Energy Shot and After Chronic Consumption | Baseline | 79.0 mmHg | Standard Deviation 6.8 |
| Placebo | Office DBP After a Single Energy Shot and After Chronic Consumption | Day 7 | 78.7 mmHg | Standard Deviation 6.33 |