ClinicalTrials.gg
Status unknownNCT03658850HYDRAUpdated Apr 30, 2019

Safety and Efficacy of Hydrochlorothiazide in the Treatment of Hypernatremia in Critically Ill Patients

A Phase 2 interventional study of Hydrochlorothiazide 50Mg and Placebos in Hypernatremia and Critical Illness, sponsored by University of Sao Paulo. Status unknown at 1 site in Brazil. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-04-30.

Sponsored by University of Sao Paulo · Phase 2, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Apr 2019), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 2
Study type
Interventional
Enrollment
184
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

HYDRA is a randomized clinical trial designed to evaluate safety and efficiency of hydrochlorothiazide in critical patients with hypernatremia

02

Conditions studied

  • Hypernatremia
  • Critical Illness

Keywords

  • hypernatremia
  • Critical care
03

In context

Hypernatremia

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

This study's planned enrollment of 184 is above the median of 64 across 32 interventional studies indexed under Hypernatremia.

Browse Hypernatremia studies →

Lead sponsor

University of Sao Paulo is the lead sponsor of 1,035 studies on the registry; 95 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

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

  • hospitalized for intensive care,
  • Over 18 years of age,
  • Two serum sodium measurements above 145 mEq / L (with no pre-determined interval between them),
  • Mean arterial pressure greater than 65mmHg

Exclusion criteria

Exclusion Criteria:

  • Absence of consent to participate in the study
  • Cardiac index below 2.5L / min / m2 OR signs of ineffective circulation (capillary filling time greater than 2 seconds, cold or sticky skin) OR arterial lactate> 4mMol / L.
  • Use of vasopressors at doses greater than 0.1 mcg / kg / min of noradrenaline or with initiation or increase of dose within less than one hour before inclusion in the study.
  • Unavailable enteral route.
  • Use of hydrochlorothiazide in the last 7 days of ICU admission.
  • History of allergy or intolerance to hydrochlorothiazide or other thiazides.
  • Nephrogenic Diabetes Insipidus.
  • Renal impairment KDIGO 3
  • Indication of renal replacement therapy.
  • Acute neurological insult.
  • Heart failure American Heart Association classification (AHA), class D.
  • Liver cirrhosis C.
  • Pregnant women
  • Exclusive palliative care
  • Dying, with expected survival less than 48 hours
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.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
184 participants (estimated)

Study arms

  • Active comparator
    Intervention

    the experimental group will receive one tablet of hydrochlorothiazide in the presentation of 50mg or equivalent enteral solution every 12h (total of 100mg per day) enterally for 3 days.

    Drug: Hydrochlorothiazide 50Mg

  • Placebo comparator
    Control

    placebo group will receive one tablet or equivalent volume of enteral solution of inert substance

    Drug: Placebos

Interventions

  • for the experimental group received a hydrochlorothiazide tablet on presentation of 50mg or equivalent enteral solution every 12h (total of 100mg per day) enterally on day 0 (D0) until day 3

  • DrugPlacebos

    for the placebo group will receive one tablet or equivalent volume of enteral solution of inert substance, identical to the hydrochlorothiazide presentations, every 12 hours until day 3

06

What researchers measure

Primary outcomes

  1. hypernatremia correction

    proportion of patients with hypernatremia correction (serum sodium below 145 mEq / L) at the end of Day 3

    Time frame: DAY 3

Secondary outcomes

  1. renal replacement therapy

    need to renal replacement therapy

    Time frame: 6 months

  2. mechanical ventilation

    incidence of mechanical ventilation

    Time frame: 6 months

  3. vasoactive drugs

    need for vasoactive drugs

    Time frame: 6 months

  4. mortality

    hospital mortality

    Time frame: 6 months

  5. serious adverse events

    incidence of serious adverse events 37/5000 incidence of serious adverse events

    Time frame: 6 months

07

Study locations

1 of 1 sites recruiting
  • Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo
    São Paulo, Brazil
    Recruiting
    • André LN Gobatto, M.D. · Contactandregobatto@gmail.com · +5511991796501
    • André LN Gobatto, M.D. · Principal investigator
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 30, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03658850
Responsible party
André Luiz Nunes Gobatto (Principal Investigator, University of Sao Paulo) — Principal investigator
First posted
Sep 5, 2018
Start date
Oct 1, 2018
Primary completion
Dec 10, 2019 (estimated)
Completion
Mar 10, 2020 (estimated)
Last update
Apr 30, 2019

Study contacts

André LN Gobatto, p.h.d
Contact
andregobatto@gmail.com
+5571988646501
André LN Gobatto, p.h.d
principal investigator · University of Sao Paulo

Oversight

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

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Studies of the drug tested here: Hydrochlorothiazide

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