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CompletedNCT01763528Updated Jan 9, 2013

High Protein Weight Loss Diet, High Sensitivity C-Reactive Protein and Cardiovascular Risks Among Obese Women

A Phase 3 interventional study of nutrition intervention in Body Mass Index Quantitative Trait Locus 8 Disorder and Tangier Disease, sponsored by Isfahan University of Medical Sciences. Completed. Open to female participants aged 20 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2013-01-09.

Sponsored by Isfahan University of Medical Sciences · Phase 3, Interventional, and Health services research

Phase
Phase 3
Study type
Interventional
Enrollment
63
Allocation
Randomized
Ages
20 Years to 65 Years
Sex
Female
01

Study summary

The investigators aimed to determine the effects of HP diet on CVD risk factors and hs-CRP among overweight and obese women.

Read the detailed description

Background: Studies regarding the effects of high protein (HP) diet on cardiovascular (CVD) risk factors have reported contradictory results.

Objective: In present study, we aimed to determine the effects of HP diet on CVD risk factors and hs-CRP among overweight and obese women.

Design: In this randomized controlled trial, we recruited 60 overweight and obese women, aged 20-65 years into HP or control energy restricted diets for three months (protein, carbohydrate, fat: 25%, 45%, 30% vs. 15%, 55%, 30%, respectively). Total protein amount, divided to animal and plant sources in 50%-50% and animal sources distributed (half/half) between meats and dairy products. Fasting blood samples, hs-CRP, lipid profile, systolic and diastolic blood pressure and anthropometric measurements were measured based on the standard guidelines.

02

Conditions studied

  • Body Mass Index Quantitative Trait Locus 8 Disorder
  • Tangier Disease

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Keywords

  • body weight
  • Low-density-lipoprotein-type
03

In context

Body Weight

1,239 studies on the registry are indexed under Body Weight; 137 are open to participants now.

This study's enrollment of 63 is close to the median of 66 across 960 interventional studies indexed under Body Weight.

Browse Body Weight studies →

Lead sponsor

Isfahan University of Medical Sciences is the lead sponsor of 149 studies on the registry; 8 are open to participants now.

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

04

Who can participate

Ages eligible
20 Years to 65 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • women aged between 20-65 years
  • BMI > 25 kg/m2
  • were no smoker
  • no history of renal, liver, metabolic diseases or type 1 or 2 diabetes

Exclusion criteria

Exclusion Criteria:

  • had gastrointestinal, respiratory, cardiovascular, metabolic, liver and renal -diseases
  • had macroalbuminuria
  • were pregnancy or lactating
05

Study design

Phase
Phase 3
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
63 participants (actual)

Study arms

  • Active comparator
    nutrition intervention

    high protein diet

    Other: nutrition intervention

  • No intervention
    control group

    control diet

Interventions

  • Othernutrition intervention

    high protein diet

06

What researchers measure

Primary outcomes

  1. the amount of weight reduction in two dietary groups

    weight reduction (kg)

    Time frame: 3 months

Secondary outcomes

  1. LDL-C (mg/dl

    measurement of LDL-C (mg/dl), HDL-C (mg/dl), total cholesterol (mg/dl), fasting blood glucose (mg/dl), systolic and diastolic blood pressure (mmHg), c reactive protein by the measurement of blood samples.

    Time frame: 3 months

  2. HDL-C (mg/dl)

    Time frame: 3 months

  3. total cholesterol (mg/dl)

    Time frame: 3 months

  4. fasting blood glucose(mg/dl)

    Time frame: 3 months

  5. blood pressure (mmHg)

    Time frame: 3 months

  6. C-reactive protein (mc/dl)

    Time frame: 3 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Azadbakht L, Izadi V, Surkan PJ, Esmaillzadeh A. Effect of a High Protein Weight Loss Diet on Weight, High-Sensitivity C-Reactive Protein, and Cardiovascular Risk among Overweight and Obese Women: A Parallel Clinical Trial. Int J Endocrinol. 2013;2013:971724. doi: 10.1155/2013/971724. Epub 2013 Aug 6. PubMed 23986778 ↗
09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jan 2011, a primary completion of Jul 2012 and a completion of Aug 2012. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 18, 2012
First posted
Jan 9, 2013
Start
Jan 2011
Primary completionActual
Jul 2012
CompletionActual
Aug 2012
Last update
Jan 9, 2013
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 9, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01763528
Responsible party
Leila Azadbakht (Isfahan University of Medical Sciences,, Isfahan University of Medical Sciences) — Principal investigator
First posted
Jan 9, 2013
Start date
Jan 2011
Primary completion
Jul 2012
Completion
Aug 2012
Last update
Jan 9, 2013

Study contacts

Leila Azadbakht, PhD
principal investigator · Isfan University of Medical Sciences

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2013. You cannot join it, but the record below documents what was studied.

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