ClinicalTrials.gg
Status unknownNCT03464708HMB-ICUUpdated Mar 17, 2021

A Study to Investigate the Effect of HMB on Skeletal Muscle Wasting in Early Critical Illness

A Phase 2 interventional study of HMB and Lactose (placebo) in Critical Illness, sponsored by Guy's and St Thomas' NHS Foundation Trust. Status unknown at 1 site in United Kingdom. Open to participants aged 18 Years to 99 Years. Per ClinicalTrials.gov, last updated 2021-03-17.

Primary conditionCritical Illness(the registry's first term)UnverifiedIs this wrong?Critical Illness is a broad heading, used only when no more specific condition is named. No better condition is named, so the registry's term is kept.

Sponsored by Guy's and St Thomas' NHS Foundation Trust · Phase 2, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Mar 2021), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Phase 2
Study type
Interventional
Enrollment
68
Allocation
Randomized
Ages
18 Years to 99 Years
Sex
All
01

Study summary

This study aims to investigate the effect of beta-hydroxy-beta-methylbutyrate (HMB) on skeletal muscle wasting, physical function, strength and quality of life in survivors of critical illness. In addition, protein turnover, muscle biology and muscle histology will be investigated.

Read the detailed description

This is a double blind, placebo controlled, randomised controlled trial with the primary objective of investigating the effect of HMB on skeletal muscle wasting in early critical illness. Secondary objectives include determining the effect of HMB on skeletal muscle quality, strength, function and quality of life in survivors of critical illness. In addition, the effect of HMB on muscle protein turnover, muscle protein signalling, muscle fibre size and protein:DNA ratio will be investigated in a sub-group of participants.

Eligible participants will be randomised to receive either 3 g/day HMB or 3 g/day placebo within 24 hours of admission to the Intensive Care Unit (ICU). This will be continued until hospital discharge or 28-days, whichever comes first.

02

Conditions studied

  • Critical Illness

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Keywords

  • Critical illness
  • HMB
  • Nutrition
  • Muscle wasting
  • Recovery
03

In context

Critical Illness Unverified

1,780 studies on the registry are indexed under Critical Illness; 442 are open to participants now.

This study's planned enrollment of 68 is below the median of 90 across 926 interventional studies indexed under Critical Illness.

Browse Critical Illness studies →

Lead sponsor

Guy's and St Thomas' NHS Foundation Trust is the lead sponsor of 295 studies on the registry; 80 are open to participants now.

Compared within Critical Illness, the registry's first condition term, which may not be this study's main condition. Counted across the registry records on this site, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 99 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

(i) ≥18 years old (ii) Due to receive enteral nutrition via a nasogastric or naso-jejunal tube as part of routine care (iii) Receiving mechanical ventilation and likely to continue this for more than 48 hours (iv) Likely to remain on the ICU for >7 days (v) Likely to survive intensive care admission. (vi) Admitted to recruiting ICU \<24 hours from hospital admission and referring ICU ≥7 days from hospital admission (vii) Agreement obtained from legal representative (viii) Able to comply with protocol and study procedures (ix) No known allergy to IMP or any of its

Participants in other trials can be recruited where protocols are not deemed likely to interfere with endpoints of either study and agreement has been obtained from the respective Chief Investigators.

Since participants in the trial will be abstaining by virtue of their illness, is not required as an eligibility requirement.

Exclusion criteria

Exclusion Criteria:

(i) Pregnancy or breast feeding (ii) Active disseminated (diagnosed) (iii) Bilateral lower limb amputees (iv) Non-ambulant or acute unilateral lower limb amputees (v) Patients with a primary neuromyopathy (vi) Patients entered into trials of interventions which would affect muscle mass (vii) Patients assessed as requiring sole parenteral nutrition (viii) Admission to ICU within the previous 3 months (ix) Any reason excluding ultrasound measurement being performed (x) Insufficient understanding of the trial by the legal representative (xi) Intolerance to lactose and/or milk protein allergy

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.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
68 participants (estimated)

Study arms

  • Experimental
    HMB

    HMB 3 g/day until hospital discharge or 28-days (whichever comes first). HMB to be provided in powder form and administered via enteral feeding tube whilst in the ICU and orally once able to eat and drink.

    Dietary Supplement: HMB

  • Placebo comparator
    Placebo

    Placebo (lactose) 3 g/day until hospital discharge or 28-days (whichever comes first). Placebo to be provided in powder form and administered via enteral feeding tube whilst in the ICU and orally once able to eat and drink.

    Other: Lactose (placebo)

Interventions

  • Dietary supplementHMB

    Powder form

    Also known as: beta-hydroxy-beta-methylbutyrate

  • OtherLactose (placebo)

    Powder form

06

What researchers measure

Primary outcomes

  1. Change in rectus femoris cross-sectional area

    Rectus femoris cross-sectional area will be measured using muscle ultrasound within 24 hours of admission to ICU and then again at study day 10. The difference between these measurements will then be determined.

    Time frame: Study Day 10

Secondary outcomes

  1. Change in rectus femoris cross-sectional area

    Rectus femoris cross-sectional area will be measured using muscle ultrasound within 24 hours of admission to ICU and then again at study day 7, ICU discharge, hospital discharge and 3-months post-hospital discharge. The difference between these measurements will then be determined.

    Time frame: Study day 7, ICU discharge (expected to be less than 10 days), hospital discharge or 28 days (whichever comes first), 3-months post-hospital discharge

  2. Difference in muscle quality

    Muscle quality will be measured determined by the echogenicity of the muscle, as measured using muscle ultrasound within 24 hours of admission to ICU and then again at study day 7,study day 10, ICU discharge, hospital discharge and 3-months post-hospital discharge. The difference between these measurements will then be determined.

    Time frame: Study day 7, study day 10, ICU discharge (expected to be less than 10 days), hospital discharge or 28 days (whichever comes first), 3-months post-hospital discharge

  3. Muscle strength

    Muscle strength will be measured using the Medical Research Council (MRC) Sum Score at study day 7, study day 10, ICU discharge and hospital discharge

    Time frame: Study day 7, study day 10, ICU discharge (expected to be less than 10 days) and hospital discharge or 28 days (whichever comes first)

  4. Muscle strength

    Muscle strength will be measured using handgrip dynamometry at study day 7, study day 10, ICU discharge, hospital discharge and 3-months post-hospital discharge

    Time frame: Study day 7, study day 10, ICU discharge (expected to be less than 10 days), hospital discharge or 28 days (whichever comes first), 3-months post-hospital discharge

  5. Physical function

    Physical function will be measured using the Chelsea Physical Assessment Score (CPAx) at study day 7, study day 10, ICU discharge and hospital discharge.

    Time frame: Study day 7, study day 10, ICU discharge (expected to be less than 10 days), hospital discharge or 28 days (whichever comes first), 3-months post-hospital discharge

  6. Physical function

    Physical function will be measured using the six-minute walk test at hospital discharge and 3-months post-hospital discharge.

    Time frame: Hospital discharge or 28 days (whichever comes first), 3-months post-hospital discharge

  7. Physical function

    Physical function will be measured using the short physical performance battery (SPPB) at hospital discharge and 3-months post-hospital discharge.

    Time frame: Hospital discharge or 28 days (whichever comes first), 3-months post-hospital discharge

  8. Quality of life

    Quality of life will be determined using the SF-36 survey at 3-months post-hospital discharge.

    Time frame: 3-months post-hospital discharge

  9. Inflammation, cell damage and metabolic profile

    Markers of inflammation, cell damage, and plasma metabolomics will be determined from plasma samples taken at study days 1, 7 and 10.

    Time frame: Study day 1, study day 7, study day 10

07

Study locations

1 site
  • Guy's and St Thomas' NHS Foundation Trust
    London, SE1 7EH, United Kingdom
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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 Jun 2018 (actual). Primary completion is estimated for May 2021, 35 months after the start.

Of 36 phase 2 interventional studies under Critical Illness, half reached primary completion within 26 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 39. This study's planned 35 months is above that.

Critical Illness covers many different conditions, not one, so the studies compared here vary widely. Read these figures as a rough guide.

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

Registered
Feb 22, 2018
First posted
Mar 14, 2018
StartActual
Jun 18, 2018
Primary completionEst.
May 2021
CompletionEst.
Aug 2021
Last update
Mar 17, 2021
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 Mar 17, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03464708
Responsible party
Sponsor
First posted
Mar 14, 2018
Start date
Jun 18, 2018
Primary completion
May 2021 (estimated)
Completion
Aug 2021 (estimated)
Last update
Mar 17, 2021

Study contacts

Nicholas Hart
principal investigator · Guy's and St Thomas' NHS Foundation Trust

Oversight

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

Not currently enrolling

This study is status unknown, as verified in Mar 2021. You cannot join it, but the record below documents what was studied.

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