This study proposes a novel early intervention combining Intravenous (IV) amino acids plus in-bed cycle ergometry exercise to improve physical outcomes in critically ill patients. The investigators hypothesize that this innovative approach will improve short-term physical functioning outcomes (primary outcome), as well as amino acid metabolism, body composition, and patient-reported outcomes at 6-month follow-up.
The evaluation of a combination of exercise and protein supplementation in intensive care unit (ICU) patients is novel and potentially very important. For instance, outside of the ICU, in other clinical conditions, the combination of protein supplementation and exercise improves protein synthesis, muscle mass, and muscle strength compared to protein or exercise alone.[63-70] Hence, an opportunity exists to improve ICU patients' physical outcomes via evaluating the combination of optimized protein intake and early exercise in the ICU setting.
The proposed intervention and hypothesis: The investigators propose a multi-centered Phase II RCT, with blinded outcomes assessment, of a combination of intravenous (IV) amino acid supplementation and early in-bed cycle ergometry exercise versus usual care in ICU patients requiring mechanical ventilation. The investigators hypothesize that this novel combined intervention will: (1) improve physical functioning at hospital discharge; (2) reduce muscle wasting with improved amino acid metabolism and protein synthesis in-hospital; and (3) improve health-related quality of life, physical functioning, and healthcare resource utilization at 6 months after enrollment. Preliminary data show feasibility and safety of IV amino acids and the proposed exercise intervention. The investigators have chosen a primary outcome that correlates well with long-term outcomes including mortality, hospitalization, and quality of life. [54] If this Phase II trial is positive, investigators will seek funding for a Phase III RCT to demonstrate sustained improvements with a longer-term patient-centered primary outcome and to examine the feasibility, and facilitators/barriers of delivery of this intervention by ICU nurses, physical therapists, and others. If proven effective, this combined intervention has potential to revolutionize care of ICU patients and have a major public health impact on the growing number of ICU survivors.
Objectives: To demonstrate that the innovative combination of amino acid supplementation plus early in-bed cycle ergometry exercise improves physical outcomes of ICU patients.
Specific Aims of Full Phase II RCT:
NEXIS Flame mechanisitic Ancillary sub study:
In the proposed sub-study, the addition of bronchoaveloar lavages, blood sampling and muscle sampling measures during the participant's ICU stay will provide the ability to examine the effects of the NEXIS intervention on inflammation as a possible mechanism for improved muscle weakness.
Specific Aims of the NEXIS FLAME mechanistic ancillary study:
Condition | Acute Respiratory Failure |
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Treatment | IV amino acids, In-bed cycle ergometry exercise |
Clinical Study Identifier | NCT03021902 |
Sponsor | Clinical Evaluation Research Unit at Kingston General Hospital |
Last Modified on | 22 January 2021 |
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