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Trial details imported from

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Registration number
Ethics application status
Date submitted
Date registered
Date last updated

Titles & IDs
Public title
Glucose:Fructose Versus Glucose Carbohydrate Ingestion and Endurance Performance
Scientific title
Secondary ID [1] 0 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Healthy 0 0
Condition category
Condition code

Study type
Description of intervention(s) / exposure
Other interventions - Mixture of glucose and fructose
Other interventions - glucose

Experimental: mixture of glucose and fructose - mixture of glucose and fructose

Active Comparator: Glucose - Single glucose

Other interventions: Mixture of glucose and fructose

Other interventions: glucose

Intervention code [1] 0 0
Other interventions
Comparator / control treatment
Control group

Primary outcome [1] 0 0
TIME to finish a long distance triathlon
Timepoint [1] 0 0
Total time recorded at the end of the race 1 and race 2

Key inclusion criteria
- Males aged 18 to 60 years

- A history of competitive triathlon performance (= 2 years)

- Participation in at least four competitive triathlon events within the past 2 years

- Be in regular training for triathlon events

- A personal best time for a standard ½ Ironman race (1.9 km swim, 90 km cycle, 21.1 km
run) in the last year of either:

- = 6 h 00 min, for men aged 18-40 years

- or =6 h 05 min for men aged 40-50 years

- or =6 h 20 min for men aged 50-60 years

- Alternatively, if not competed in ½ Ironman in the last year, at least one standard
distance triathlon (1.5 km swim, 40 km cycle, 10 km run) within the last 12 months:

- =2 h 13 min, for men aged 18-40 years

- or =2 h 18 min for men aged 40-50 years

- or =2 h 23 min for men aged 50-60 years

- Available to compete in the ½ Ironman events and complete all study requirements

- Experienced in using carbohydrate supplementation, as gels, bars, and drinks in
training/racing, specifically at rates =60-90g/h)

- Experience of specific formulations may include both or only multiple and single
transportable carbohydrates, thus a full assessment would be made prior to recruitment
to ensure balance during randomization and account for any association with the
primary outcome

- Obtained his (or his legal representative's) informed consent.
Minimum age
18 Years
Maximum age
60 Years
Can healthy volunteers participate?
Key exclusion criteria
- Failure to meet health requirements defined in the Health Questionnaire

- Prior known fructose intolerance

- Wheat intolerance or other precluding food or packaging-related allergies

- An existing injury affecting ability to race to best ability

- A chronic injury that may affect ability to complete the races

- Unable to carry out performance assessments and questionnaires correctly

- Unable to tolerate the treatment during the familiarization sessions

- Taking medications thought to interfere with the study outcomes

- Currently participating or having participated in another clinical study during the
last four weeks prior to the beginning of this study

Study design
Purpose of the study
Basic Science
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s

The people analysing the results/data
Intervention assignment
Other design features
Not Applicable
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment outside Australia
Country [1] 0 0
New Zealand
State/province [1] 0 0

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry

Ethics approval
Ethics application status

Brief summary
The primary objective is to show that multiple transportable carbohydrate ingestion is more
effective in improving endurance performance compared to single transportable carbohydrate
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
Other publications