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CompletedNCT03610074ICU-MICUpdated Apr 1, 2019

Relieve the Patient's Thirst, Refresh the Mouth First (ICU-MIC)

An interventional study of Mint Ice Cube and Blood test in Hypernatremia and Dehydration, sponsored by Centre Hospitalier Arras. Completed at 2 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-04-01.

Sponsored by Centre Hospitalier Arras · Not applicable, Interventional, and Basic science

Phase
Not applicable
Study type
Interventional
Enrollment
26
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Thirst is considered as one of the most distressing symptoms experienced by patients hospitalized in the Intensive Care Unit (ICU). Whereas pain is a permanent concern for all caregivers, thirst is often ignored and its complications are poorly known. Mechanisms involved in thirst regulation are numerous and complex. To date, care of thirst is still non optimal. Critically ill patients are usually rehydrated intravenously or using a naso-gastric tube, thus shunting the mouth as a therapeutic target to relieve the patient's thirst.

Water, cold and mint applied in mouth were studied separately and were shown to decrease thirst significantly on animal models and healthy humans.

Therefore, the hypothesis of this study is that application of small mint ice cubes in mouth of very dehydrated ICU patients should allow decreasing quickly and significantly thirst for these patients, before the correction of their biological parameters, like natremia and osmolarity.

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Conditions studied

  • Hypernatremia
  • Dehydration

Keywords

  • thirst
  • mouth
  • critical care
  • water deprivation
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In context

Hypernatremia

49 studies on the registry are indexed under Hypernatremia; 8 are open to participants now.

This study's enrollment of 26 is below the median of 64 across 32 interventional studies indexed under Hypernatremia.

Browse Hypernatremia studies →

Lead sponsor

Centre Hospitalier Arras is the lead sponsor of 9 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
18 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

  • Hypernatremia upper than 150mmol/L or hypernatremia upper than 145mmol/L associated with water deficiency upper than 3L
  • Estimated hospitalization duration in ICU upper than 24h

Exclusion criteria

Exclusion Criteria:

  • for ice cubes application in mouth
  • Known mint allergy
  • Incapability to understand study outcome and to answer basic questions
  • Pregnancy
  • Dying person
Terms in these criteria, in plain language(1)

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.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
26 participants (actual)

Study arms

  • Experimental
    Mint ice cubes

    Physician applies 3 mint ice cubes in mouth of highly dehydrated patient. Patient undergoes an additional blood test at 5 min from mint ice cubes application. Physician performs patient's questioning before mint ice cubes application and at 5 min, 1h, 2h, 4h, 12h and 24h from mint ice cubes application.

    Other: Mint Ice Cube · Procedure: Blood test · Other: Patient's questioning

Interventions

  • OtherMint Ice Cube

    Application in patient's mouth of 3 mint ice cubes

  • ProcedureBlood test

    Additional blood test 5 min after mint ice cubes application

  • OtherPatient's questioning

    Patient's questioning before mint ice cubes application and at 5 min, 1h, 2h, 4h, 12h and 24h from mint ice cubes application

06

What researchers measure

Primary outcomes

  1. Change of thirst intensity at 5 minutes from mint ice cubes application

    The primary endpoint is a change of thirst intensity of at least 1.5 points on the thirst intensity scale at 5 minutes from mint ice cubes application. Thirst intensity scale is a numeric scale ranging from 0 to 10 points. 0 corresponds to no thirst (the best outcome). 10 corresponds to a thirst of the strongest possible intensity (the worst outcome).

    Time frame: at 5 minutes from mint ice cubes application

Secondary outcomes

  1. Change of thirst-associated discomfort at 5 minutes from mint ice cubes application

    This secondary endpoint is a change of thirst-associated discomfort on the discomfort scale at 5 minutes from mint ice cubes application. The discomfort scale is a numeric scale ranging from on a 0 to 5 points. 0 corresponds to "very comfortable" (the best outcome). 5 corresponds to "very uncomfortable" (the worst outcome).

    Time frame: at 5 minutes from mint ice cubes application

  2. Time of appearance of the observed effect on thirst intensity

    This secondary endpoint is the delay (in minutes) between mint ice cubes application and the observed effect on thirst intensity.

    Time frame: over 24 hours from mint ice cubes application

  3. Duration of the observed effect on thirst intensity

    This secondary endpoint measures how much time (in minutes) mint ice cubes application keeps working on thirst intensity.

    Time frame: over 24 hours from mint ice cubes application

  4. Change of natremia at 5 minutes from mint ice cubes application

    Natremia (in mmol/L)

    Time frame: at 5 minutes from mint ice cubes application

  5. Change of natremia at 24 hours from mint ice cubes application

    Natremia (in mmol/L)

    Time frame: at 24 hours from mint ice cubes application

  6. Change of plasma osmolarity at 5 minutes from mint ice cubes application

    Plasma osmolarity (in mmol/L)

    Time frame: at 5 minutes from mint ice cubes application

  7. Change of plasma osmolarity at 24 hours from mint ice cubes application

    Plasma osmolarity (in mmol/L)

    Time frame: at 24 hours from mint ice cubes application

07

Study locations

2 sites
  • Centre Hospitalier d'Arras
    Arras, France
  • Centre Hospitalier de Lens
    Lens, France
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 1, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03610074
Lead sponsor
Centre Hospitalier Arras
Responsible party
Sponsor
First posted
Aug 1, 2018
Start date
Apr 23, 2018
Primary completion
Mar 8, 2019
Completion
Mar 8, 2019
Last update
Apr 1, 2019

Study contacts

Malcolm LEMYZE, MD
principal investigator · Centre Hospitalier Arras

Oversight

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

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This study is completed, as verified in Mar 2019. You cannot join it, but the record below documents what was studied.

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