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Status unknownNCT00421616Updated Feb 19, 2007

Effectiveness of High Protein Diets in Promoting Weight Loss in Overweight and Obese Subjects.

An interventional study of High protein diet study in Overweight, sponsored by University of Wollongong. Status unknown at 1 site in Australia. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2007-02-19.

Sponsored by University of Wollongong · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Feb 2007), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
45
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

Several studies have reported greater weight loss when following high meat-protein diets but limited studies have studied high plant-based protein diets. Thus we aim to investigate the effect of high protein diets in weight management and also to investigate the superior protein source in achieving this effect. In addition, we aim to develop dietary intervention strategies that are realistic and sustainable.

Read the detailed description

Participants will be randomised to either high-protein diets (30% of energy) from animal or plant sources or standard protein diet (15% of energy) weight loss diet for 3 months.

02

Conditions studied

  • Overweight

Keywords

  • Calorimetry
  • Overweight
  • Weight loss
  • Appetite
03

In context

Overweight

3,670 studies on the registry are indexed under Overweight; 849 are open to participants now.

This study's enrollment of 45 is below the median of 73 across 3,175 interventional studies indexed under Overweight.

Browse Overweight studies →

Lead sponsor

University of Wollongong is the lead sponsor of 4 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Overweight or obese
  • Age 18 and above
  • Both males and females
  • Live in Illawarra Area of Australia

Exclusion criteria

Exclusion Criteria:

  • Regular medication
  • Smoker
  • Food allergies
  • Presence of disease which may alter metabolic rate
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single
Enrollment
45 participants

Interventions

  • BehavioralHigh protein diet study
06

What researchers measure

Primary outcomes

  1. Weight & anthropometric measurements at 0 and 3 months

  2. Energy expenditure

  3. Substrate oxidation

  4. Compliance to diets

Secondary outcomes

  1. Blood lipids

  2. Appetite

07

Study locations

1 site
  • Smart Foods Centre, University of Wollongong
    Wollongong, New South Wales 2522, Australia
    • Marijka Batterham, PhD · Contact · marijka@uow.edu.au · +61242215303
    • Cassandra Quick, MND · Contact · cassy@uow.edu.au · +61242215992
    • Cassandra Quick, MND · Sub investigator
    • Sze Yen Tan, MSc · Sub investigator
    • Serina Faraji, BND · Sub investigator
08

References and documents

Publications

  • Tan SY, Batterham M, Tapsell L. Activity counts from accelerometers do not add value to energy expenditure predictions in sedentary overweight individuals during weight loss interventions. J Phys Act Health. 2011 Jul;8(5):675-81. doi: 10.1123/jpah.8.5.675. PubMed 21734313 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 19, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00421616
Lead sponsor
University of Wollongong
Collaborators
National Centre of Excellence in Functional Foods, Australia
First posted
Jan 12, 2007
Start date
Feb 2007
Last update
Feb 19, 2007

Study contacts

Marijka Batterham, PhD
Contact
marijka@uow.edu.au
+61242215303 ext. 5303
Cassandra Quick, MND
Contact
cassy@uow.edu.au
+61242215992 ext. 5992
Marijka Batterham, PhD
principal investigator · Smart Foods Centre, University of Wollongong
Linda Tapsell, PhD
principal investigator · National Centre of Excellence in Functional Foods, Australia
Arthur Jenkins, PhD
principal investigator · School of Health Sciences, University of Wollongong
View the source record on ClinicalTrials.gov ↗

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This study is status unknown, as verified in Feb 2007. You cannot join it, but the record below documents what was studied.

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