PRotein Optimization With eXercise to Improve MUscle Mass and Functional outcomeS
PROXIMUS
1 other identifier
interventional
72
1 country
2
Brief Summary
The investigators have designed a 2-center, pilot feasibility, randomized controlled trial (PROXIMUS) to determine the feasibility and safety of a larger multi center, randomized open-label trial comparing high protein combined with individualized exercise vs. standard management during the acute phase of critical illness in children. The investigators aim to determine the impact of the intervention on preservation of muscle mass; and functional status at 1 month and 6 months after randomization.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Feb 2023
Longer than P75 for not_applicable
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 8, 2022
CompletedFirst Posted
Study publicly available on registry
March 25, 2022
CompletedStudy Start
First participant enrolled
February 20, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
June 30, 2026
ExpectedJanuary 5, 2024
January 1, 2024
2.8 years
March 8, 2022
January 4, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Feasibility of recruitment and adherence to study procedures
Feasibility (primary composite outcome) will be assessed by the following metrics: (1) \>80% of eligible patients are approached for consent; (2) \>35% of eligible patients are randomized (enrollment and consent); (3) \>80% of consented patients receive study treatments (allocation and adherence).
Through study completion, up to 10 days
Tolerability of protein intervention (serum creatinine change)
Incidence of treatment-related adverse events as assessed by 3-fold rise in serum creatinine or intolerance (new emesis or diarrhea) related to the study diet.
Through study completion, up to 10 days
Safety of protein (new renal injury) and exercise interventions (any associated adverse events)
Incidence of treatment-related adverse events; specifically new renal injury or injury/discomfort associated with exercise.
Through study completion, up to 10 days
Secondary Outcomes (4)
Change in Muscle mass thickness
Through study completion, up to 10 days
Functional assessment - motor, cognitive and responsibility
6 months
Multidimensional Pediatric Health related Quality of Life assessment (Physical, Emotional, Social, School Functioning domains) using a validated tool
6 months
Assessment of Functional status - sensory, communication, motor, sensory and feeding
6 months
Other Outcomes (1)
Protein catabolism (breakdown)
10 days
Study Arms (2)
Standard protein and exercise
ACTIVE COMPARATORAll enrolled patients randomized to this arm will receive a baseline nutrition and nurse-driven mobility pathway and other evidence-based bundled strategies as standard of care.
High protein plus exercise
EXPERIMENTALHigh protein nutrition: To achieve the prescribed age-appropriate high protein target, dietitians will use EN preferentially, or if EN is contraindicated, PN may be used. High-protein EN formulas and/or protein supplements (powder or liquid) will be added to formula/breast milk feedings or administered separately in divided bolus doses. Dietitians routinely employ and customize these solutions in their scope of practice. When EN is insufficient to meet protein targets, PN may be prescribed to make up the deficit on or after the end of PICU day 3. Energy and protein delivery adequacy (% of prescribed goal) will be monitored daily by the study team. Patients in this arm will also be prescribed the age-appropriate highest-level of mobility by the rehabilitation team with a goal of 30 minutes duration, twice daily.
Interventions
The dietitian and rehabilitation team will be consulted on enrollment and will assess the patient for nutritional and functional status using the institutional criteria and physical exam. The study dietitian will prescribe the protein goal based on the randomization assignment and age group. For the high protein arm, protein goals will be 3g/kg/day for ages 1-1yrs, and 2.4g/kg/day for ages greater than 12 years. The rehabilitation team will determine the appropriate highest level of mobility (HLM) for the day in collaboration with the medical team on morning rounds. The rehabilitation team will prescribe passive or active participation in two 30-minute HLM sessions, individualized to their baseline function and clinical status and/or restrictions.
Eligibility Criteria
You may qualify if:
- ICU patients aged 1 year (corrected) to \<18 years
- Require mechanical ventilation (endotracheal intubation or tracheostomy, or initiation of noninvasive ventilation) in the first 72 hours of PICU admission.
- Able to consent to participate within 72 hours of initiation of mechanical ventilation initiation.
You may not qualify if:
- Patients unable to receive EN, PN, or who are on a specialized diet incompatible with the study intervention
- Fulminant liver failure
- Kidney failure (≥KDIGO Stage 3) without replacement therapy
- Functional Status Scale score at PICU admission \<9
- End of life/redirection of care
- ECMO therapy
- Continuous neuromuscular blockade and/or bedrest is medically or surgically necessitated Participation in a conflicting interventional trial
- High risk of refeeding syndrome
- Inborn errors of metabolism
- High BSA burns.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Boston Children's Hospitallead
- Johns Hopkins Universitycollaborator
Study Sites (2)
Johns Hopkins Hospital
Baltimore, Maryland, 21218, United States
Boston Children's Hospital
Boston, Massachusetts, 02115, United States
Related Publications (5)
Mehta NM, Bechard LJ, Cahill N, Wang M, Day A, Duggan CP, Heyland DK. Nutritional practices and their relationship to clinical outcomes in critically ill children--an international multicenter cohort study*. Crit Care Med. 2012 Jul;40(7):2204-11. doi: 10.1097/CCM.0b013e31824e18a8.
PMID: 22564954BACKGROUNDHauschild DB, Oliveira LDA, Farias MS, Barbosa E, Bresolin NL, Mehta NM, Moreno YMF. Enteral Protein Supplementation in Critically Ill Children: A Randomized Controlled Pilot and Feasibility Study. JPEN J Parenter Enteral Nutr. 2019 Feb;43(2):281-289. doi: 10.1002/jpen.1416. Epub 2018 Jun 30.
PMID: 29959852BACKGROUNDMehta NM, Bechard LJ, Zurakowski D, Duggan CP, Heyland DK. Adequate enteral protein intake is inversely associated with 60-d mortality in critically ill children: a multicenter, prospective, cohort study. Am J Clin Nutr. 2015 Jul;102(1):199-206. doi: 10.3945/ajcn.114.104893. Epub 2015 May 13.
PMID: 25971721BACKGROUNDWieczorek B, Ascenzi J, Kim Y, Lenker H, Potter C, Shata NJ, Mitchell L, Haut C, Berkowitz I, Pidcock F, Hoch J, Malamed C, Kravitz T, Kudchadkar SR. PICU Up!: Impact of a Quality Improvement Intervention to Promote Early Mobilization in Critically Ill Children. Pediatr Crit Care Med. 2016 Dec;17(12):e559-e566. doi: 10.1097/PCC.0000000000000983.
PMID: 27759596BACKGROUNDChoong K, Canci F, Clark H, Hopkins RO, Kudchadkar SR, Lati J, Morrow B, Neu C, Wieczorek B, Zebuhr C. Practice Recommendations for Early Mobilization in Critically Ill Children. J Pediatr Intensive Care. 2018 Mar;7(1):14-26. doi: 10.1055/s-0037-1601424. Epub 2017 Apr 10.
PMID: 31073462BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Nilesh Mehta, MD
Faculty, Boston Children's Hospital
- PRINCIPAL INVESTIGATOR
Sapna R Kudchadkar, MD, PhD
Faculty, Johns Hopkins
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Faculty, Critical Care; Professor of Anesthesia
Study Record Dates
First Submitted
March 8, 2022
First Posted
March 25, 2022
Study Start
February 20, 2023
Primary Completion
December 1, 2025
Study Completion (Estimated)
June 30, 2026
Last Updated
January 5, 2024
Record last verified: 2024-01
Data Sharing
- IPD Sharing
- Will not share