NCT07155447

Brief Summary

The objective of this multi-center, prospective, placebo-controlled, randomized study is to compare oral conditionally essential amino acid (CEAA) supplementation for decreasing the key postoperative complications of fracture-related infection, fracture nonunion, and skeletal muscle wasting with a placebo control (PC) after lower extremity fracture fixation. Investigators hypothesize that perioperative oral supplementation with an investigational CEAA supplement (ICS) will reduce postoperative fracture-related infections, fracture nonunion rates, and skeletal muscle wasting in patients with traumatic lower extremity fractures. This is supported by strong pilot data. Conducting a randomized controlled trial at five civilian tertiary referral centers and one military treatment facility will further study the potential benefits of oral CEAA supplementation for preventing the stated key postoperative complications in patients following high energy lower extremity orthopedic trauma. This low cost, low risk intervention has demonstrated potential to expedite Warfighter return to duty as well as potentially reducing delayed limb amputations and mortality in severely injured patients.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,000

participants targeted

Target at P75+ for phase_3

Timeline
19mo left

Started Jun 2026

Status
not yet recruiting

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

February 23, 2025

Completed
6 months until next milestone

First Posted

Study publicly available on registry

September 4, 2025

Completed
9 months until next milestone

Study Start

First participant enrolled

June 1, 2026

Expected
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

January 8, 2026

Status Verified

January 1, 2026

Enrollment Period

1.6 years

First QC Date

February 23, 2025

Last Update Submit

January 6, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Compare clinical benefit of oral supplementation with CEAA versus a placebo for reducing fracture-related infection after lower extremity fracture fixation.

    Investigators will record the number of participants with fracture-related infection for 12 months following lower extremity fracture fixation. The measurement will be based on Metsemakers consensus definition (Metsemakers et al. (2018). We will enroll 1,000 participants and anticipate 15% loss to attrition (426 in each arm). Using the observed fracture-related infection rates of 16.5% and 10% from a previous study, 426 participants would be needed for each group to detect a significant difference with 80% power and alpha value of 0.05 based upon Pearson Chi-Square test and pooled standard deviation.

    12 months

Study Arms (2)

Patients randomized to CEAA

EXPERIMENTAL

Patients with lower extremity fractures indicated for operative fracture fixation at six tertiary trauma centers

Dietary Supplement: CEAA supplementation

patients randomized to placebo

PLACEBO COMPARATOR

Patients with with lower extremity fractures indicated for operative fracture fixation at six tertiary trauma centers

Other: Placebo

Interventions

PlaceboOTHER

a neutral powder containing the non- essential amino acid Alanine which will be indistinguishable from the CEAA supplement powder in in regards to packaging and supplement appearance.

patients randomized to placebo
CEAA supplementationDIETARY_SUPPLEMENT

(including calcium beta-hydroxy-beta- methylbutyrate monohydrate, L-Arginine, L-Glutamine and Ciltruline) Supplementation will be started within 72 hours of presentation and continued for a period of 28 days.

Patients randomized to CEAA

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Adults age 18-55 years
  • Open or closed fracture of the lower extremity including femur, tibia and/or fibula, calcaneus, talus, Lisfranc joint (OTA/AO 31, 32, 33, 41, 42, 43, 44, 4F, 81, 82, 83, 85)
  • Ability to begin supplementation within 72 hours of injury

You may not qualify if:

  • BMI \<18.5 kg/m 2 (underweight) or BMI \> 45 kg/m 2 (severe obesity) to exclude patients with severely increased baseline risk of adverse outcome due to preoperative poor nutrition
  • Non-ambulatory prior to injury
  • Currently pregnant
  • Medical contraindication to CEAA supplementation (e.g., phenylketonuria)
  • Inability to provide informed consent due to intellectual disability
  • Protected populations (e.g., prisoners)
  • Inability to follow up (e.g., homeless at time of surgery, home address out of state of treating facility)
  • Documented dementia, mild or moderate traumatic brain injury
  • Inability to consume supplement or placebo due to head or neck trauma
  • Low-energy fragility fracture (i.e. ground level falls)
  • Pathologic fracture (i.e. fracture through site of compromised bone due to infection, neoplasm, documented osteoporosis, metabolic bone disease from conditions such as end stage renal disease, osteomalacia, hypophosphatemic rickets, renal osteodystrophy, osteofibrous dysplasia)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Officials

  • Nathan Hendrickson

    University of Minnesota

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 23, 2025

First Posted

September 4, 2025

Study Start (Estimated)

June 1, 2026

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2027

Last Updated

January 8, 2026

Record last verified: 2026-01