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RecruitingNCT07202208DZUpdated Jul 10, 2026

Effectiveness of the Delirium Zero Protocol to Prevent the Onset of Delirium in Patients Undergoing Hip Fracture Surgery

An interventional study of "Delirium Zero" protocol and Standard of Care to prevent Delirium. in Hip Fracture and Delirium - Postoperative, sponsored by Cardenal Herrera University. Recruiting at 2 sites in Spain. Open to participants aged 65 Years and older. Per ClinicalTrials.gov, last updated 2026-07-10.

Sponsored by Cardenal Herrera University · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 6 months after the study started (first participant enrolled Jan 2025, registered Jul 2025).
  • Started Jan 2025; still recruiting 1 year 9 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
112
Allocation
Randomized
Ages
65 Years and older
Sex
All
01

Study summary

The main objective of this research will be to investigate whether the control of care provided by the family/caregiver can prevent the incidence of delirium in individuals undergoing surgical intervention for hip fracture.

The research will be a randomized, single-blind, parallel, two-arm clinical trial that compares two conditions: intervention group, hereafter IG (Delirium Zero protocol based on a space-temporal orientation poster for the patient, a clock hung on the wall next to the orientation poster, and a checklist for the preventive measures taken by the caregiver/family), and control group, hereafter CG (standard of care).

The participants will be patients over 65 years old, admitted to the trauma hospitalization units at the La Fe University and Polytechnic Hospital (La Fe Health Department, Valencia, Spain) and at the Manises Hospital (Manises Health Department, Spain), who have had hip fracture surgery and are accompanied by a family member/caregiver. The research will take place in these centers because the rooms are private, which allows there to be no interference between the intervention under study (in the IG) or the standard care (CG).

02

Conditions studied

  • Hip Fracture
  • Delirium - Postoperative

Keywords

  • hip fracture
  • Family
  • Care
  • Care Protocol
  • Delirium
  • Caregiver
03

In context

Hip Fractures

842 studies on the registry are indexed under Hip Fractures; 165 are open to participants now.

This study's planned enrollment of 112 is above the median of 86 across 533 interventional studies indexed under Hip Fractures.

Browse Hip Fractures studies →

Lead sponsor

Cardenal Herrera University is the lead sponsor of 107 studies on the registry; 22 are open to participants now.

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

04

Who can participate

Ages eligible
65 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

  • The participants will be patients over 65 years old
  • Admitted to the orthopedic hospitalization units of La Fe University and Polytechnic Hospital (La Fe Health Department, Valencia, Spain) and Manises Hospital (Manises Health Department, Spain).
  • Who are undergoing surgery for hip fracture
  • Accompanied by a family member/caregiver who understands Spanish and knows how to read and write it.

Exclusion criteria

Exclusion Criteria:

- Delirium at the time of admission to the trauma guard (assessed with the CAM scale).

Have previously been diagnosed with severe cognitive impairment according to the Pfeiffer scale, which corresponds to a score of 8-10 points.

  • Have previously been diagnosed with any serious mental disorder (schizophrenic disorders, schizotypal disorders, persistent delusional disorders, substance-induced delusional disorders, schizoaffective disorders, other non-organic psychotic disorders, bipolar disorder, serious depressive episode with psychotic symptoms, and severe recurrent depressive disorders). - that they have delirium at the time of admission to the trauma room.
  • That they have a language barrier, deep aphasia, coma, or terminal illness.
  • That they have been previously enrolled in this study.
  • That before the surgery they were admitted to a different hospital unit than those participating in the study, although they may then be transferred to one of these trauma units.
  • That they present brain alterations (tumors, occupying lesions).
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
112 participants (estimated)

Study arms

  • Experimental
    Delirium Zero

    In addition to the standard of care that the Control Group receives, the Intervention Group (Delirium Zero) will be subjected to the 'Delirium Zero' protocol.

    Procedure: "Delirium Zero" protocol · Procedure: Standard of Care to prevent Delirium.

  • Active comparator
    Control Group

    The Control Group receives the standard of care to prevent delirium.

    Procedure: Standard of Care to prevent Delirium.

Interventions

  • Procedure"Delirium Zero" protocol

    The protocol consists of: i) a patient orientation poster placed in the room in a visible location for the patient, with information updated daily by the family member/caregiver; ii) a clock hung on the wall next to the orientation poster; and iii) a verification sheet of the preventive measures taken by the caregiver/family member, where the caregiver/family member must indicate daily the frequency with which preventive activities have been performed. The caregiver/family member will have this document in the patient's room all day and will need to complete it at the end of the day, when the nurse will collect it for safekeeping. From that day until the patient is discharged, the nurse responsible for the patient's care will be responsible for providing a new verification sheet of the preventive measures taken by the family member/caregiver and collecting it at the end of the day once it has been completed by the family member/caregiver.

  • ProcedureStandard of Care to prevent Delirium.

    All participants in the study, regardless of the assigned group, receive information on strategies to prevent delirium, which is provided in the participant information sheet and includes an infographic and a guide for patients and their families. Participants are advised to keep this document accessible throughout their stay for reference.

06

What researchers measure

Primary outcomes

  1. Delirium: incidence

    It will be measured using the Confusion Assessment Method scale. It will be measured twice daily, in the morning and in the afternoon, during all days of hospitalization, in all participants, regardless of the group they belong to. The scale allows for the detection of acute confusional state (delirium) using an algorithm that assesses four criteria: criterion 1 (presence of an acute and fluctuating change in the patient's mental status and behavior), criterion 2 (inattention), criterion 3 (disorganized thinking), and criterion 4 (altered level of consciousness). To establish the presence of delirium, the presence of criteria 1 and 2 is mandatory, as well as any one of criteria 3 and 4. A criterion is considered present when: the questions are answered affirmatively (for criteria 1, 2, and 3) and when the level of consciousness is other than alert (for criterion 4).

    Time frame: Baseline, from the patient's admission to the trauma unit until hospital discharge or assessedup to 6 weeks, whichever came first.

Secondary outcomes

  1. Delirium: severity

    It will be measured using the Confusion Assessment Method scale. It will be measured twice daily, in the morning and in the afternoon, during all days of hospitalization, in all participants, regardless of the group they belong Based on the CAM scale, numerical scores are assigned to the evaluated criteria, which allows the intensity of the delirium symptoms to be quantified, with a score that ranges from 0 to 7, where a higher score indicates greater severity. Each of the symptoms is scored as follows: criterion 1 (acute onset and fluctuating course of mental state, rated as absent = 0, or present = 1), criterion 2 (inattention, rated as absent = 0, mild = 1 or marked = 2), criterion 3 (disorganized thinking, rated as absent = 0, mild = 1 or marked = 2) and criterion 4 (altered level of consciousness, where an alert state of consciousness is considered normal = 0, and the rest of the states are considered altered with these scores: vigilant = 1, lethargic = 1, stupor = 2, coma = 2).

    Time frame: Baseline, from the patient's admission to the trauma unit until hospital discharge or assessedup to 6 weeks, whichever came first.

  2. Delirium. Days of duration

    Days of delirium. Once the patient is discharged, the principal investigator will record the total number of days the patient experienced delirium during their stay. Unit of measurement: days. Method of aggregation: absolute frequency. It will be measured twice daily, in the morning and in the afternoon, during all days of hospitalization, in all participants, regardless of the group they belong to.

    Time frame: Baseline, from the patient's admission to the trauma unit until hospital discharge or assessedup to 6 weeks, whichever came first.

  3. Delirium: number of episodes

    Number of delirium episodes during the stay. Once the patient is discharged, the principal investigator will record the total number of delirium episodes the patient experienced during their stay. Unit of measurement: number of episodes. Method of aggregation: absolute frequency. It will be measured twice daily, in the morning and in the afternoon, during all days of hospitalization, in all participants, regardless of the group they belong to.

    Time frame: Baseline, from the patient's admission to the trauma unit until hospital discharge or assessedup to 6 weeks, whichever came first.

  4. Adherence to the Delirium Zero protocol

    The Delirium Zero protocol is applied only to participants in the IG. Adherence to this protocol is measured by recording the frequency of delirium prevention measures. For each preventive measure, the frequency with which it was performed is indicated using a Likert-type scale with four frequency options: Never = 0, Sometimes = 1, Quite a bit = 2, and Always = 3. The measure of being accompanied at night by a family member/caregiver, and the measures related to poster completion, have two response options: No = 0 and Yes = 1. The score ranges from 0 to 36 in patients without glasses, hearing aids, or dentures, with higher scores indicating greater adherence to the protocol. This maximum score will be increased by 6 points for patients with glasses and/or 6 points for patients with hearing aids and/or 3 points for patients with dentures. In addition, an analysis of overall adherence will be performed.

    Time frame: Baseline, from the patient's admission to the trauma unit until hospital discharge or assessedup to 6 weeks, whichever came first.

07

Study locations

1 of 2 sites recruiting
  • Hospital Manises
    Manises, Valencia 46940, Spain
    Not yet recruiting
  • Hospital Universitario y Politécnico La Fe
    Valencia, Valencia 46026, Spain
    Recruiting
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 Jul 10, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07202208
Collaborators
Hospital Universitario La Fe
Responsible party
Laura García Garcés (Assistant Professor, Cardenal Herrera University) — Principal investigator
First posted
Oct 1, 2025
Start date
Jan 15, 2025
Primary completion
Jul 31, 2028 (estimated)
Completion
Jul 31, 2028 (estimated)
Last update
Jul 10, 2026

Study contacts

Laura García Garcés Principal Investigator., PhD
Contact
laura.garcia19@uchceu.es
(+34) 961369000 ext. 64352

Oversight

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

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