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Badanie HALO: haloperidol vs olanzapina w nadpobudliwym delirium u pacjentów opieki paliatywnej; Wieloośrodkowe, randomizowane, kontrolowane badanie

30 września 2026 zaktualizowane przez: Mervyn Koh Yong Hwang, Tan Tock Seng Hospital
  1. Background and Clinical Need:

    Delirium is common at the end of life and is challenging to control. There is a clinical need to study the benefits of commonly used drugs like Haloperidol and Olanzapine in the management of hyperactive delirium in advanced cancer or end-stage organ disease patients in a scientifically robust manner.

  2. Aims/Hypotheses:

    The investigators aim to study the effectiveness of Haloperidol compared with Olanzapine in the management of hyperactive delirium in advanced cancer or end-stage organ disease patients receiving palliative care. The investigators hypothesise that Olanzapine is as effective as Haloperidol in the control of hyperactive delirium.

  3. Methods:

    The investigators will conduct a pragmatic, multi-centre, (hospital, inpatient hospice, community hospital) open-label randomised-controlled trial comparing the use of Haloperidol versus Olanzapine in advanced cancer or end-stage organ disease patients with hyperactive delirium.

    The primary outcome is the change in Richmond Agitation and Sedation Scale (RASS) scores among patients in each treatment group at 8 hours post-drug administration.

    The secondary outcome is the control of hyperactive delirium at 24, 48 and 72 hours using either Haloperidol or Olanzapine.

    The mean doses of Haloperidol and Olanzapine used as well as the volume of rescue Midazolam required as well as side-effects of the study medications, survival after enrolment into study will also be studied.

  4. Significance to palliative care The results of this study will advance the knowledge of delirium management worldwide with regards to the efficacy of Haloperidol and Olanzapine in managing hyperactive delirium in patients with advanced cancer or end-stage organ disease.

Haloperidol is used traditionally in palliative care for managing delirium. However, as a conventional anti-psychotic, it does cause extra-pyramidal side-effects. Olanzapine, a newer atypical anti-psychotic with a more favourable side-effect profile is being used increasingly in the control of delirium. These 2 commonly used drugs have never been compared head to head in a randomised-controlled, multi-centre study.

Przegląd badań

Status

Zakończony

Warunki

Interwencja / Leczenie

Szczegółowy opis

(A) Background & Clinical Need

Delirium is commonly encountered in palliative care with a prevalence of between 26-74% and rising to as high as 88% nearer the end of life (2). It negatively impacts patient care and leads to greater morbidity and mortality (3). There are 3 sub-types of delirium - hyperactive, mixed and hypoactive (4) with majority of well-designed studies in palliative care focusing on the management of delirium as a whole (5). However, recently published literature suggests that these delirium subtypes appear to have different trajectories and are also generally treated differently (6).

Overall, the management of delirium in palliative care remains controversial. Agar had shown in a randomised controlled trial that supportive care may be superior to the use of anti-psychotics, even though the patients in Agar's study were only 'mildly' delirious and the overall doses of anti-psychotics used was lower than compared to common practice (9). Other studies have shown the benefits of anti-psychotics like haloperidol, olanzapine and aripiprazole in the management of delirium (10,11).

Hui et al was the only study which looked at the management of hyperactive delirium in the palliative care setting (7). Patients with hyperactive delirium exhibit restlessness, agitation and even aggression towards their loved ones and to healthcare providers caring for them (8).

To date, there have not been any multi-centre, randomised-controlled trial which has addressed the effectiveness of oral Haloperidol vs Olanzapine in the management of hyperactive delirium in the palliative care setting.

(B) Specific Aims

The investigators aim to study the effectiveness of Olanzapine vs Haloperidol in the management of hyperactive delirium in patients with advanced cancer or end-stage organ disease in 3 different settings.

The primary outcome is the change in Richmond Agitation and Sedation Scale (RASS) scores among patients in each treatment group at 8 hours after the administration of Haloperidol or Olanzapine as measured using the Richmond Agitation and Sedation Scale (RASS).

The secondary outcome is the change in Richmond Agitation and Sedation Scale (RASS) score at 24, 48 and 72 hours with the use of either Haloperidol or Olanzapine required.

The mean doses of Haloperidol and Olanzapine used as well as the doses of rescue Midazolam required as well as side-effects of the study medications, survival after enrolment into study will also be studied.

(C) Methods

Study Design

The investigators aim to conduct a multi-centre, randomised-controlled, open-label trial (Acute Hospital Palliative Care Unit, Palliative Care Unit in Community Hospital and Inpatient Hospice) comparing the use of haloperidol vs olanzapine in a 1:1 ratio in advanced cancer or end-stage organ disease patients with hyperactive delirium. Patients will be followed up for 3 days (72 hours) with regards to the response to study medications as well as other factors and outcomes as described below. Mortality data will also be collected.

The study will be conducted in 3 different Palliative Care Centres in Singapore - 1. Tan Tock Seng Hospital Acute Palliative Care Unit, 2. Palliative Care Unit in St Andrews' Community Hospital and 3. Dover Park Hospice. This is to increase the pragmatic applicability and external validity in this study to different palliative care units in Singapore and internationally.

Informed consent will be taken from the patient's legal representative according to the HBR Act as the patients recruited will be delirious and therefore will not able to provide informed consent adequately.

Typ studiów

Interwencyjne

Zapisy (Rzeczywisty)

22

Faza

  • Faza 3

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Lokalizacje studiów

      • Singapore, Singapur, 308436
        • Dover Park Hospice
      • Singapore, Singapur, 529895
        • St. Andrew's Community Hospital
    • Singapore
      • Singapore, Singapore, Singapur, 308433
        • Tan Tock Seng Hospital

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

21 lat do 99 lat (Dorosły, Starszy dorosły)

Akceptuje zdrowych ochotników

Nie

Płeć kwalifikująca się do nauki

Wszystko

Opis

Inclusion Criteria:

  1. Patients with advanced cancer or end-stage organ disease

  2. Age ≥ 21 years old

  3. Fulfil All Three Diagnosis of Delirium:

    • Diagnostic and Statistical Manual of Mental Disorders Fifth Edition (DSM-5) criteria for delirium
    • Memorial Delirium Assessment Scale (MDAS)©1996 >/= 13
    • Richmond Agitation-Sedation Scale (RASS) Score +1 to +3
  4. Able to consume medications orally

  5. Prognosis > 48 hrs (Clinician Estimate)

Exclusion Criteria:

  1. Parkinson's Disease or Vascular Parkinsonism
  2. Patient with dementia
  3. Chronic Schizophrenia on regular Anti-psychotic medications
  4. Taking any regular Benzodiazepines* or any Anti-psychotic** medications
  5. Known allergy to Haloperidol or Olanzapine
  6. History of Substance Abuse
  7. Known Prolonged corrected QT interval (QTc) Syndrome (In Patient's Medical History)
  8. Prognosis < 48 hours (Clinician's Estimate)
  9. Unable to consume oral medications
  10. Richmond Agitation and Sedation Scale (RASS) Score +4 (Too agitated and will require Parenteral Anti-psychotics and/or Benzodiazepines)
  11. Pregnancy * e.g. Lorazepam, Alprazolam, Clonazepam, Midazolam **e.g. Haloperidol, Risperidone, Quetiapine, Olanzapine

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Leczenie
  • Przydział: Randomizowane
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Pojedynczy

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Aktywny komparator: Haloperidol Arm

Haldol 2mg/ml oral solution

Starting dose: 1mg

Maximum Dose within 24 hours: 6mg

Doses can be escalated every 2 hourly to the maximum doses allowed within 24 hours. If maximum dose of Haloperidol has been reached for the day (within 24 hours), rescue dose of Midazolam 2mg can be used (2mg Q2H PRN).

Aktywny komparator: Olanzapine Arm

Olanzapine Actavis 5mg orodispersible tablet

Starting dose: 2.5mg

Maximum Dose within 24 hours: 15mg

Doses can be escalated every 2 hourly to the maximum doses allowed within 24 hours. If maximum dose of Olanzapine has been reached for the day (within 24 hours), rescue dose of Midazolam 2mg can be used (2mg Q2H PRN).

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Change in Richmond Agitation and Sedation Scale (RASS) score
Ramy czasowe: 8 hours

The change in Richmond Agitation and Sedation Scale (RASS) score 8 hours after administration of either Haloperidol and Olanzapine. Minimum value is -5 which represents that the patient is in hypoactive delirium and is unarousable and maximum value is +4 with the higher score representing that the patient is in hyperactive delirium and is combative. The aim of the study is to reduce the hyperactive delirium to a score of 0 which represents patient is alert and calm.

8 hours

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Comparing Patient and Family's concurrence on state of delirium with of the Diagnosis of Delirium from Diagnostic and Statistical Manual of Mental Disorders Fifth Edition (DSM-5) criteria for delirium.
Ramy czasowe: 72 hours

There have not been any studies that looked at interviewing patients who are delirious about their acknowledgement and concurrence of their state of delirium. The investigators aim to interview patients by asking the patient 'Did you feel confused' and caregivers similarly by asking 'Do you feel that your loved one is Confused' as shown as an example below and compare this to the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition (DSM-5) criteria for delirium.

Please ask the Patient the following question "Do you feel that you are confused?"

  1. Yes/Sometimes
  2. No
  3. Not Sure/ Unable to answer Please ask the Family member or Caregiver the following question "Do you think the patient is confused?"

1) Yes/Sometimes 2) No 3) Not sure/ Unable to answer

72 hours
Mean dose used of Haloperidol and Olanzapine
Ramy czasowe: 72 hours

Mean doses of Haloperidol and Olanzapine used at 8hours / D1 / D2 / D3 from the first time-point that the study medication is administered to the patients

72 hours
Mean Time to control of Hyperactive Delirium
Ramy czasowe: 72 hours

Mean Time to control of Hyperactive Delirium

72 hours
Rescue Psychotropic (Mean Doses): Midazolam
Ramy czasowe: 72 hours

Rescue Psychotropic (Mean Doses): Midazolam

72 hours
Side-effects of Study Medications
Ramy czasowe: 72 hours

Side-effects of Study Medications

72 hours
Survival time in days
Ramy czasowe: 72 hours

Survival time in days

72 hours
Edmonton Symptom Assessment Score revised (ESAS-r)
Ramy czasowe: 1 hour

Edmonton Symptom Assessment Score revised (ESAS-r) - At the point of recruitment

Minimum value for the scale is 0 and maximum value for the scale is 10 with the higher value representing worse outcome.

1 hour
Memorial Delirium Assessment Score (MDAS)
Ramy czasowe: 72 hours

Memorial Delirium Assessment Score (MDAS) - At the point of recruitment and after 72 hours

It is a scale comprising of 10 items with scores of 0-3 for each question. Add up the score for all 10 questions and scores with more than or equal to 13 point indicates delirium.

72 hours
Richmond Agitation and Sedation Scale (RASS) score
Ramy czasowe: 72 hours

Richmond Agitation and Sedation Scale (RASS) score: 8hours / 24hours (Day 1) / 48 hours (Day 2) / 72 hours (Day 3)

Minimum value is -5 which represents that the patient is in hypoactive delirium and is unarousable and maximum value is +4 with the higher score representing that the patient is in hyperactive delirium and is combative. The aim of the study is to reduce the hyperactive delirium to a score of 0 which represents patient is alert and calm.

72 hours
Caregiver and Nurses Perception on the control of hyperactive delirium
Ramy czasowe: 72 hours

Caregiver and Nurses Perception on the control of hyperactive delirium (5-point Likert Scale). Kindly refer to the example of the question below.

The patient is less agitated as compared to 72 hours ago? (Clinician/Nurse):

  1. - Strongly Disagree
  2. - Disagree
  3. - Neutral
  4. - Agree
  5. - Strongly Agree

The patient is less agitated as compared to 72 hours ago? (Family/Caregiver):

  1. - Strongly Disagree
  2. - Disagree
  3. - Neutral
  4. - Agree
  5. - Strongly Agree
72 hours

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Śledczy

  • Główny śledczy: Mervyn Koh, Tan Tock Seng Hospital

Publikacje i pomocne linki

Osoba odpowiedzialna za wprowadzenie informacji o badaniu dobrowolnie udostępnia te publikacje. Mogą one dotyczyć wszystkiego, co jest związane z badaniem.

Publikacje ogólne

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Rzeczywisty)

18 maja 2022

Zakończenie podstawowe (Rzeczywisty)

25 września 2025

Ukończenie studiów (Rzeczywisty)

25 września 2025

Daty rejestracji na studia

Pierwszy przesłany

30 marca 2021

Pierwszy przesłany, który spełnia kryteria kontroli jakości

5 kwietnia 2021

Pierwszy wysłany (Rzeczywisty)

6 kwietnia 2021

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

5 października 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

30 września 2026

Ostatnia weryfikacja

1 września 2026

Więcej informacji

Terminy związane z tym badaniem

Inne numery identyfikacyjne badania

  • PalC-RG-20/P001

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIE

Opis planu IPD

There are no plans to make individual participant data available to other researchers.

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

produkt wyprodukowany i wyeksportowany z USA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .