ClinicalTrials.gg
RecruitingNCT06825377Updated Feb 14, 2025

Comparing High-protein Vs. Standard Protein Nutritional Support in Critically Ill Patients At Risk for Refeeding Syndrome

An interventional study of Whey protein in Critical Illness, Malnutrition and Refeeding Syndrome, sponsored by Shahid Beheshti University. Recruiting at 1 site in Iran, Islamic Republic of. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2025-02-14.

Primary conditionRefeeding SyndromeRegistry: Critical IllnessReclassifiedWhy we changed it
Registry
Critical Illness — the first condition term the registry derived for this study.
ClinicalTrials.gg
Refeeding Syndrome
Why
  1. Critical Illness is a broad heading, used only when no more specific condition is named.
  2. The study's listed conditions name Refeeding Syndrome.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Shahid Beheshti University · Not applicable, Interventional, and Supportive care

From the registry’s dates

  • Primary completion was expected by Feb 2026, 8 months ago, but the record still lists the study as recruiting.
  • Started Feb 2025; still recruiting 1 year 8 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
150
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The goal of this clinical trial is to determine the optimal protein administration strategy for enhancing both nutritional and clinical outcomes, as well as reducing complications and mortality in ICU patients at risk for refeeding syndrome (RS). This study will include critically ill patients at risk for RS who are receiving supportive nutrition. The primary hypothesis is that higher protein intake will lead to a decreased incidence of refeeding syndrome. It is also expected that patients receiving more protein will have better clinical outcomes, lower mortality, and shorter ICU and hospital stays.

Read the detailed description

Patients will be randomly assigned to two groups: the high-protein group and the standard-protein group. Upon ICU admission, and after meeting the inclusion criteria and identifying a risk of refeeding syndrome (RS), they will be allocated to one of the two groups. Patient selection for RS risk will be based on the diagnostic criteria outlined in the 2020 ASPEN guidelines. The m-NUTRIC and APACHE II scores will be calculated for all patients at ICU admission and 24 hours before the initiation of feeding. Monitoring for multi-organ dysfunction syndrome (MODS) will involve daily laboratory tests and organ failure assessment using the SOFA score.

Before starting the nutritional intervention, all patients will receive 100 mg of thiamine daily for one week, along with a daily multivitamin-mineral supplement. Due to the risk of RS, calorie intake will begin at low levels and will be cautiously increased in both groups. To calculate the energy needs, ideal body weight will be used. In the high-protein group, the target protein intake will be 2 grams per kilogram of body weight per day, while in the standard-protein group, it will be 1.3 grams per kilogram of body weight per day. Protein will be introduced gradually, starting from a low level, as part of nutritional support, with whey protein powder added if needed as a supplement. If serum creatinine levels rise, protein powder will be removed from the patient's diet. The intervention duration will be 14 days, with a minimum of 5 days.

The primary clinical outcome is the incidence of refeeding syndrome (RS), while secondary outcomes include the occurrence of infections, hospital length of stay, ICU length of stay, multi-organ failure, and mortality within 45 days of admission. RS will be diagnosed according to the 2020 ASPEN guidelines. Serum concentrations of potassium, magnesium, phosphate, glucose, urea, and creatinine will be measured daily for one week.

02

Conditions studied

  • Critical Illness
  • Malnutrition
  • Refeeding Syndrome
  • At Risk for Refeeding Syndrome

Browse trials for

Keywords

  • Refeeding syndrome
  • Critically ill
  • High-protein
  • Complication
  • Malnutrition
  • mortality
03

In context

Refeeding Syndrome Reclassified

24 studies on the registry are indexed under Refeeding Syndrome; 7 are open to participants now.

Browse Refeeding Syndrome studies →

Lead sponsor

Shahid Beheshti University is the lead sponsor of 37 studies on the registry; 3 are open to participants now.

Compared within Refeeding Syndrome, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Critical Illness. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Willingness to cooperate and complete the form by the patient or legal guardian;
  • age ≤ 18 years and \< 65 years;
  • Non-pregnant and non-lactating;
  • Serum creatinine ≥ 1.1 mg/dl for women and ≥ 1.2 mg/dl for men;
  • No organ failure at the time of study enrollment;
  • Intervention initiation within 48 hours of ICU admission;
  • No history of cancer or end-stage disease;
  • No absolute to enteral nutrition (e.g., persistent ileus, gastrointestinal ischemia, persistent or biliary vomiting, mechanical obstruction);
  • No active infections, sepsis, severe sepsis, or septic shock;
  • No intolerance to the whey protein supplement used in the current study;
  • Not participating in other clinical trials concurrently with this study;
  • No clinical conditions with higher or lower protein needs, such as burns, sepsis, cirrhosis, or chronic kidney disease;
  • No diabetes with severe complications such as ketoacidosis, hyperosmolar coma, or acidosis.

Exclusion criteria

Exclusion Criteria:

  • Unwillingness to continue cooperation during study;
  • Discharge or death of the patient earlier than 5 days from the start of the intervention;
  • Occurrence of side effects during the study
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
150 participants (estimated)

Study arms

  • Experimental
    High-protein

    The target protein intake of 2 grams per kilogram of body weight per day will be gradually introduced, starting at a low level, through nutritional support, with whey protein powder added if needed as a supplement.

    Dietary Supplement: Whey protein

  • Active comparator
    Standard-protein

    The target protein intake of 1.3 grams per kilogram of body weight per day will be gradually introduced, starting at a low level, through nutritional support, with whey protein powder added if needed as a supplement.

    Dietary Supplement: Whey protein

Interventions

  • Dietary supplementWhey protein

    Whey protein powder will be provided with nutritional support in both groups if needed to meet the target protein intake.

06

What researchers measure

Primary outcomes

  1. Number of participants with refeeding syndrome

    Refeeding syndrome will be diagnosed based on a decrease in serum levels of electrolytes, including potassium, magnesium, and phosphate, within the first 5 days of nutrition delivery.

    Time frame: within the first 5-7 days of nutrition delivery

Secondary outcomes

  1. Incidence of infection

    Determining and comparing the incidence of infection and its duration

    Time frame: Within 5-14 days of nutrition delivery

  2. Number of participants with organ failure as measured by SOFA score

    Organ failure will be assessed using the SOFA Score (Sequential Organ Failure Assessment), which evaluates the function of the following organ systems: Cardiovascular Respiratory Renal Hepatic Coagulation Neurological

    Time frame: Within 5-14 days of nutrition delivery

  3. Duration of ICU stay

    Time frame: up to 7 weeks after admission

  4. Duration of hospital stay

    Time frame: up to 7 weeks after admission

  5. Mortality

    45-day mortality from the time of ICU admission

    Time frame: up to 45-day

07

Study locations

1 of 1 sites recruiting
  • Ayatollah Taleghani Medical, Educational, and Therapeutic Center, Shahid Beheshti University of Medical Sciences
    Tehran, Iran, Islamic Republic of
    Recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Feb 2025 (actual). Primary completion is estimated for Feb 2026, 12 months after the start.

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

Registered
Feb 2, 2025
First posted
Feb 13, 2025
StartActual
Feb 13, 2025
Primary completionEst.
Feb 15, 2026
CompletionEst.
Apr 15, 2026
Last update
Feb 14, 2025
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 Feb 14, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06825377
Lead sponsor
Shahid Beheshti University
Responsible party
Zahra Vahdat Shariatpanahi (Associate professor, Shahid Beheshti University of Medical Sciences) — Principal investigator
First posted
Feb 13, 2025
Start date
Feb 13, 2025
Primary completion
Feb 15, 2026 (estimated)
Completion
Apr 15, 2026 (estimated)
Last update
Feb 14, 2025

Study contacts

Zahra Vahdat Shariatpanahi Professor
Contact
nutritiondata@yahoo.com
0098-021-22357484
Zahra Vahdat Shariatpanahi Professor
principal investigator · School of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

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.

Studies of the drug tested here: Whey Proteins

Start the discussion