Effect of Different Dosages of Paraxanthine, the Major Caffeine Metabolite, on Energy and Focus

NCT ID: NCT06117280

Last Updated: 2023-11-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-07-18

Study Completion Date

2023-10-20

Brief Summary

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Research has shown that acute ingestion of Paraxanthine (1,7-dimethylxanthine, PXN) can enhance various markers of focus, including memory, reaction time, and attention in healthy adults. To assess these effects, this placebo-controlled crossover trial will compare the effects of 200 and 300mg of PXN to a placebo control. Participants will abstain from caffeine for 3 days, before taking the first test/placebo product for 3 consecutive days. Participants will complete questionnaires at 30, 60, 90, and 120 minutes after ingestion on Day 1 and Day 3 of ingestion. Participants will have a 3-day washout period before trialing the next test product/placebo.

Detailed Description

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Following enrollment to the study, participants will abstain from any products containing caffeine, for 3 days.

On the night of the 3rd day of caffeine abstinence, participants will fast overnight (\~10 hours) The morning after the fast, participants will complete the Day 1 baseline questionnaire.

Participants will then consume Test Product A and complete questionnaires 30, 60, 90, and 120 minutes after ingestion. Test Products should be consumed in a fasted state, and 1-hour post-ingestion participants will consume a standardized meal (See Section 6.3).

On Day 2, participants will consume Test Product A again but will not complete any questionnaires. The product should be consumed in a fasted state and participants will consume the standardized meal 60 minutes post-ingestion.

On Day 3, participants will consume Test Product A in a fasted state and will again consume the standardized meal 1-hour following ingestion of the product. Participants will complete questionnaires 30, 60, 90, and 120 minutes after ingestion. Participants will then have a 3-day washout period with no products consumed or questionnaires completed.

Following the washout period, the intervention cycle will be repeated with Test Product B and, subsequently, Test Product C.

The questionnaires will consist of study-specific surveys and a cognitive assessment battery.

Conditions

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Energy Focus Caffeine Withdrawal

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

OTHER

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Intervention (Dose One)

In this crossover trial, all participants will test both active comparators and the placebo comparator.

Group Type EXPERIMENTAL

Paraxanthine 200 mg

Intervention Type OTHER

For the three-day test cycle, participants will take one capsule per day amounting to 200mg of paraxanthine.

Intervention (Dose Two)

In this crossover trial, all participants will test both active comparators and the placebo comparator.

Group Type EXPERIMENTAL

Paraxanthine 300 mg

Intervention Type OTHER

For the three-day test cycle, participants will take one capsule per day amounting to 300mg of paraxanthine.

Placebo

In this crossover trial, all participants will test both active comparators and the placebo comparator.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

The placebo will contain resistant dextrin. For the three-day test cycle, participants will take one capsule per day amounting to 300mg of resistant dextrin.

Interventions

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Paraxanthine 200 mg

For the three-day test cycle, participants will take one capsule per day amounting to 200mg of paraxanthine.

Intervention Type OTHER

Paraxanthine 300 mg

For the three-day test cycle, participants will take one capsule per day amounting to 300mg of paraxanthine.

Intervention Type OTHER

Placebo

The placebo will contain resistant dextrin. For the three-day test cycle, participants will take one capsule per day amounting to 300mg of resistant dextrin.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Aged between 18-35
* Willing to abstain from caffeine-containing beverages and foods during the duration of the study
* Recreationally active; currently performing structured exercise (e.g., running, weightlifting, team-sport activity) at least 2 days per week for the previous 3 months

Exclusion Criteria

* Body Mass Index: \>29.9kg/m2
* Inability to adhere to protocol guidelines (e.g., caffeine, alcohol, tobacco)
* Regular tobacco use
* Illicit drug use (e.g., growth hormone, testosterone, etc.)
* A diagnosed medical condition under the care of a physician (e.g. type 2 diabetes) Inability to abstain from supplements (e.g. protein, creatine, HMB, BCAA, phosphatidic acid, etc.) at least three weeks before the trial
* Individuals on medications known to affect caffeine metabolism (e.g., corticosteroids, non-steroidal anti-inflammatories, or prescription-strength acne medications)
* Participants who are amenorrheic (females only)
* Inability to comply with the study protocol as judged by the investigators
Minimum Eligible Age

18 Years

Maximum Eligible Age

35 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Citruslabs

INDUSTRY

Sponsor Role collaborator

Iovate Health Sciences International Inc

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Citruslabs

Santa Monica, California, United States

Site Status

Countries

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United States

Other Identifiers

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20329

Identifier Type: -

Identifier Source: org_study_id

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