ClinicalTrials.gg
RecruitingNCT04038294PROTECT-CSUpdated Dec 18, 2023

PROTein to Enhance outComes of (Pre)Frail paTients Undergoing Cardiac Surgery

An interventional study of ISOlution protein supplement and Placebo Supplement in Frail Older Adult Syndrome, Nutrition Poor and Cardiovascular Morbidity, sponsored by St. Boniface Hospital. Recruiting at 2 sites in Canada. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2023-12-18.

Sponsored by St. Boniface Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2024, 1 year 10 months ago, but the record still lists the study as recruiting.
  • Started Feb 2020; still recruiting 6 years 8 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
150
Allocation
Randomized
Ages
60 Years and older
Sex
All
01

Study summary

Heart disease in an aging population has resulted in heart surgery being offered to older and more frail patients. Frail patients which make up more than 50% of patients currently undergoing heart surgery are vulnerable to having long-recovery times after surgery, greater loss of independence (i.e. being admitted to a nursing home), experience more depression and anxiety, and have a worse quality of life. In fact, nearly 10% of frail, older adult patients die within 30 days after their heart surgery. The Investigators previous study found that weight-loss and poor muscle strength (i.e. weakness) of frail patients can lead to a worse recovery after heart surgery. Furthermore, inadequate nutrition (aka. malnutrition which is defined as an unintentional, nutritional intake imbalance (not necessarily a decreased intake) before an operation can lead to a vicious cycle of muscle loss causing more frailty, a desire to eat less leading to more muscle loss and increased frailty. At present there is no process to address this important issue in older adults undergoing heart surgery. The Investigators propose to study a practical, real-world, treatment plan that focuses on good nutrition to prevent muscle loss and reduced frailty in vulnerable heart surgery patients.

Read the detailed description

To enhance recovery in vulnerable older adults (aged 60 years or older) undergoing major heart surgery. The Investigators seek to reduce the stress of heart surgery on the body by providing muscle-building nutrition supplements (with leucine-rich proteins) at key time-points during the patients' journey.

Objectives of this study:

  1. Will leucine-rich protein nutrition supplementation (given in a liquid form like a protein shake) can reduce functional decline in frail older patients undergoing major heart surgery. The Investigators predict that these supplements will lead to a reduction in functional muscle loss (for example how quickly some can walk) and quicker recovery both in hospital and after going home.
  2. Will leucine-rich protein nutrition supplementation will enhance health-related quality of life of frail older adult patients after heart surgery. The Investigators predict that patients will be able to return to activities that they enjoy more quickly and experience less depression and anxiety.

In a two-centre clinical trial, frail older adults (patients who are at risk of a long recovery) undergoing major heart surgeries will receive nutrition supplements up to 2 weeks prior to surgery, during post-op recovery in hospital, and for the 8 weeks following hospital discharge. Prior to surgery, all patient in the study will consume a carbohydrate supplement in order to help with nausea symptoms post surgery, glycemic control and GI function. The Investigators will ask 150 (pre)frail patients before their heart surgery to participate. Patient who are 60 years of age or older who agree to be in the study will be randomly selected (75 patients in each group) to receive the nutrition protein shakes or a placebo (a shake without the special protein). In addition to how long a patient needs to stay in hospital after their heart surgery, The Investigators will measure levels of frailty (by different tests of muscle strength), overall nutrition, health related quality of life after surgery as well as mood and anxiety at 2 and 6 months after hospital discharge.

02

Conditions studied

  • Frail Older Adult Syndrome
  • Nutrition Poor
  • Cardiovascular Morbidity

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Keywords

  • Cardiac Surgery
  • Protein supplementation
  • Pre-Frail and Frail older adults
03

In context

Malnutrition

1,277 studies on the registry are indexed under Malnutrition; 230 are open to participants now.

This study's planned enrollment of 150 is above the median of 118 across 843 interventional studies indexed under Malnutrition.

Browse Malnutrition studies →

Lead sponsor

St. Boniface Hospital is the lead sponsor of 32 studies on the registry; 7 are open to participants now.

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

04

Who can participate

Ages eligible
60 Years and older
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

  1. Patients aged 60 years of age or older, undergoing elective isolated CABG, aortic valve repair or replacement for moderate aortic stenosis or severe regurgitation, mitral valve repair or replacement for moderate stenosis or severe regurgitation or combined CABG/valve procedures.
  2. Patients with a Clinical Frailty Score (CFS) from 3 (Managing Well) to 7 (severely frail),
  3. Patients with a Short Physical Performance Battery (SPPB) score of 9 or less, or an SF-36 (PF) score of \<= 60
  4. Patients with an estimated wait time for elective cardiac surgery of 1 week or longer
  5. Inpatients with an estimated wait time for non-emergent cardiac surgery of 2 days or longer from hospital admission

Exclusion criteria

Exclusion Criteria:

  1. Decompensated or non-ambulatory class IV symptoms of angina, dyspnea, claudication
  2. Patients with a Clinical Frailty Score (CFS) of 7 or greater (Severely frail to terminally ill); this will exclude less than 1% of the population on the elective cardiac surgery waitlist.
  3. \<30 mL/min/1.83 m2
  4. Cirrhosis ( Class B or greater)
  5. Allergy to milk proteins or other ingredients in the supplement
  6. Inability to safely ingest beverage by mouth
  7. Significant cognitive impairment ( Score \< 16)
  8. An inability to speak/read in English or French
  9. Non-emergent or emergent surgery less than 2 days from hospital admission
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.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

MMSE and MoCA

Short tests of memory and thinking, each scored out of 30. Lower scores suggest more difficulty; criteria give a range, either to include people with memory problems or to leave them out.

05

Study design

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

Study arms

  • Experimental
    Protein Supplementation

    The intended intervention consists of a leucine-rich protein-caloric supplement provided by the Enhanced Medical Nutrition®. The product contains 25 g protein and 3 g Leucine per serving (total caloric value: 160 Kcal.) to be re-constituted and consumed twice daily for a minimum of 2 weeks pre-procedure, twice daily during post-operative recovery and 2 times daily for 8 weeks after the patient is discharged home (Appendix A).

    Dietary Supplement: ISOlution protein supplement

  • Placebo comparator
    Placebo Supplementation

    Enrolled patients allocated to the control group will receive the same supplementation schedule as well as compliance verification; however, they will receive a placebo product with no supplemented protein (no nutritional benefit).

    Dietary Supplement: Placebo Supplement

Interventions

  • Dietary supplementISOlution protein supplement

    EXPERIMENTAL ARM: Protein supplement to be re-constituted and consumed twice daily for a minimum of 2 weeks pre-procedure, twice daily during post-operative recovery and 2 times daily for 8 weeks after the patient is discharged home.

  • Dietary supplementPlacebo Supplement

    PLACEBO COMPARATOR ARM: Placebo supplement to be re-constituted and consumed twice daily for a minimum of 2 weeks pre-procedure, twice daily during post-operative recovery and 2 times daily for 8 weeks after the patient is discharged home

06

What researchers measure

Primary outcomes

  1. Change in Short-Form 36 physical Function (PF) score

    The SF-36 PF assessment captures the physical functioning of participants. It has been moderately correlated with the SPPB and can be used interchangeably if the SPPB is not able to be completed by a patient

    Time frame: Assessed at: baseline, Day of Discharge from Hospital after cardiac surgery, 2 months post surgery and 6 months post surgery

Secondary outcomes

  1. health-related QOL measured by the EQ-5D-3L

    The EQ-5D-3L measure health related quality of life in our patient cohort

    Time frame: Assessed at: baseline, 2 months post surgery and 6 months post surgery

  2. health-related QOL measured by the EQ-VAS

    EQ-VAS measure health related quality of life in our patient cohort

    Time frame: Assessed at: baseline, 2 months post surgery and 6 months post surgery

  3. Depression

    measured by the patient health questionnaire (PHQ-9) this assessment measures the symptoms related to depression

    Time frame: Assessed at: baseline, 2 months post surgery and 6 months post surgery

  4. Anxiety

    measured by the cardiac anxiety questionnaire (CAQ) this assessment measures the anxiety experienced by patients with cardiovascular disease

    Time frame: Assessed at: baseline, 2 months post surgery and 6 months post surgery

  5. Nutrition assessment

    Nutrition is measured by the mini nutritional assessment tool

    Time frame: Assessed at: baseline, Day of Discharge from Hospital after cardiac surgery, 2 months post surgery and 6 months post surgery

  6. Physical Activity Accumulation

    This is measured with the use of physical activity monitors call accelerometers. This will be worn for a period of 7 days after each research appointment

    Time frame: Assessed at: baseline, 2 months post surgery and 6 months post surgery

  7. Composite safety endpoint of all-cause mortality, injurious fall, acute kidney injury, or readmission for related events

    These parameters will be taken from medical chart reviews post cardiac surgery

    Time frame: Parameters collected at the 2 month time point

  8. Health related QOL as measured by OARS - ADL Scale

    This scale measures activities of daily living

    Time frame: Assessed at: baseline, 2 months post surgery and 6 months post surgery

  9. Nausea and vomiting questionnaire

    This scale measures symptoms of nausea and vomiting while a patient is recovering in-hospital following cardiac surgery

    Time frame: Assessed (only 1 time point) while patient is in-hospital recovering from cardiac surgery. (i.e. 6 days after cardiac surgery)

  10. Frailty

    This measure will be assessed using the Modified Fried Criteria. this includes measures such as: Hand grip strength, exhaustion, nutrition, and physical activity accumulation. This assessment will return a value from 0-5 identifying the frailty of the patient at each of the time points identified

    Time frame: Assessed at: baseline, 2 months post-surgery and 6 months post-surgery

07

Study locations

1 of 2 sites recruiting
  • St. Boniface General Hospital
    Winnipeg, Manitoba R2H2A6, Canada
    Recruiting
    • Rakesh Arora, MD,PhD · Contactrarora@sbgh.mb.ca · (204) 258-1078
    • David Kent, MSc · Contactdkent@sbgh.mb.ca · 204-237-2985
    • Rakesh C Arora, MD, PhD · Principal investigator
    • Todd A Duhamel, PhD · Sub investigator
    • Navdeep Tangri, MD · Sub investigator
    • Cornelia Van Ineveld, MD · Sub investigator
    • Annette Schultz, PhD · Sub investigator
    • Anna Chudyk, PhD · Sub investigator
    • Dustin S Kehler, PhD · Sub investigator
  • Jewish General Hospital
    Montréal, Quebec H3T 1E2, Canada
    Not yet recruiting
08

References and documents

Publications

  • Rose AV, Duhamel T, Hyde C, Kent DE, Afilalo J, Schultz ASH, Chudyk A, Kehler DS, Dave M, Arora RC. Randomised controlled trial protocol for the PROTECT-CS Study: PROTein to Enhance outComes of (pre)frail paTients undergoing Cardiac Surgery. BMJ Open. 2021 Jan 29;11(1):e037240. doi: 10.1136/bmjopen-2020-037240. PubMed 33514571 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Feb 2020 (actual). Primary completion is estimated for Dec 2024, 58 months after the start.

Of 392 non-industry interventional studies with no phase under Malnutrition, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 37. This study's planned 58 months is above that.

Counting every sponsor, half of 418 studies reached it within 22 months; a quarter within 11 and three quarters within 37.

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

Registered
Jul 24, 2019
First posted
Jul 30, 2019
StartActual
Feb 12, 2020
Primary completionEst.
Dec 30, 2024
CompletionEst.
Jun 30, 2025
Last update
Dec 18, 2023
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 Dec 18, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04038294
Lead sponsor
St. Boniface Hospital
Collaborators
Heart and Stroke Foundation of Canada
Responsible party
Dr. Rakesh C. Arora (Section head Cardiac Surgery, St. Boniface Hospital) — Principal investigator
First posted
Jul 30, 2019
Start date
Feb 12, 2020
Primary completion
Dec 30, 2024 (estimated)
Completion
Jun 30, 2025 (estimated)
Last update
Dec 18, 2023

Study contacts

Rakesh Arora, BKin,MD,PhD,
Contact
rarora@sbgh.mb.ca
204-258-1078
David Kent, BKin, MSc
Contact
dkent@sbgh.mb.ca
204-237-2985
Rakesh Arora, BKin,MD,PhD
principal investigator · University of Manitoba

Oversight

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

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