CClinicalTrials.gg
Status unknownNCT03077074Updated Mar 21, 2017

Brain Responses to Visual Food Cues in Response to a Low Carbohydrate Diet

An interventional study of low carbohydrate consumption in Changes in Functional MRI, sponsored by Hadassah Medical Organization. Status unknown at 1 site in Israel. Open to female participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-03-21.

Sponsored by Hadassah Medical Organization · Not applicable, Interventional, and Basic science

The sponsor has not verified this record recently (last verified Feb 2017), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
40
Ages
18 Years to 45 Years
Sex
Female
01

Study summary

The aim is to profile and elucidate the hormonal and neurological system interaction to food related behavior. The stimulus used will include visual and taste (gustatory) stimuli. The study will profile induced correlations of metabolic parameters, gut hormones and brain region (ROI - regions of interest) activation and interaction. In this study we will use fMRI (functional MRI) to compare brain responses in obese, normal-weight and reduced weight subjects. The food stimuli will be blocked into specific categories to allow for investigation of different responses to alternating energy density foods. The response will be tested prior to and following a brief low carbohydrate dietary regimen.

Read the detailed description

The study will be a longitudinal study where the participants will come back twice on the same phase of the period- both visits in the luteal phase with a month between each visit. In this part of the study there will be 40 participants with a wider range of BMI. This phase of the study will include a nutritional intervention - the participants will be asked to have a carbohydrate restricted diet (60 grams of carbohydrate)- for a period of a month with no caloric restriction. Food records will be kept and followed and a ketone test (blood test) will be done on the morning of the study visits.

02

Conditions studied

  • Changes in Functional MRI
03

In context

Lead sponsor

Hadassah Medical Organization is the lead sponsor of 659 studies on the registry; 54 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Age 18- 45 years
  • No contraindication to enter the MRI
  • No significant visual problems that may hamper visualization of visual stimuli within the magnet
  • No contraceptive hormonal replacement
  • relatively regular menstrual cycle

Exclusion criteria

Exclusion Criteria:

  • contraceptive hormonal replacement
  • under the age of 18
  • over the age of 45
  • pharmacological treatment that can effect brain response
  • Irregular menstrual cycle
05

Study design

Phase
Not applicable
Primary purpose
Basic science
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
40 participants (estimated)

Study arms

  • Experimental
    Low carbohydrate consumption

    consumption of up to 60 grams of carbohydrate a day for 10 days FMRI will be performed prior and after the intervention during the luteal cycle phase

    Other: low carbohydrate consumption

Interventions

  • Otherlow carbohydrate consumption

    consumption of up to 60 grams of carbohydrate a day for 10 days FMRI will be performed prior and after the intervention during the luteal cycle phase

06

What researchers measure

Primary outcomes

  1. fMRI:(Functional MRI) changes in activation patterns of reward associated regions will be assessed prior and after dietary intervention

    BOLD (Blood Oxygen Level Dependent) responses will we quantified in regions of interest

    Time frame: fMRI will be preformed in the luteal menstrual phase at two time points (at least a month apart). a comparison will be made between pre and post intervention.

07

Study locations

1 of 1 sites recruiting
  • Hadassah hebrew university
    Jerusalem Region, Israel
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 21, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03077074
Lead sponsor
Hadassah Medical Organization
Responsible party
Ram Weiss (Ram Weiss, clinical professor and principle investigator, Hadassah Medical Organization) — Principal investigator
First posted
Mar 10, 2017
Start date
Jan 1, 2017
Primary completion
Sep 1, 2018 (estimated)
Completion
Sep 1, 2019 (estimated)
Last update
Mar 21, 2017

Study contacts

Ram Weiss, professor
Contact
ramw@ekmd.huji.ac.il
972508946469
Ram Weiss, Professor
principal investigator · Hadassah Medical Organization

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Feb 2017. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion