SchizophreniaPhase 4NCT03829124
Comparison of Ketamine Combine Propofol vs Propofol Anesthesia in Schizophrenia Electroconvulsive Therapy
A Phase 4 study testing Propofol and Ketamine in people with Schizophrenia, run by Chang Gung Memorial Hospital.
Trial summary
Electroconvulsive therapy (ECT) serves as an effective adjuvant modality for major depressive disorder, schizophrenia, or bipolar affective disorder refractory to or contraindicated to psychopharmacological treatment. Read more about this study
- Who is it for?
- Ages 20 to 65 years
- Conditions the study is for
- Schizophrenia
- What is being tested?
- Propofol and Ketamine
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1 participants
- Where
- No sites listed yet
- Study dates
- 24 May 2019to 20 Apr 2021
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- The clinical diagnosis is consistent with the schizophrenia, and the diagnostic requirements are in accordance with the Structural Diagnostic Interview Scale (SCID for Diagnostic and Statistical Manual of Mental Disorders (DSM-5)) and are recognized by psychiatrists as needing electroconvulsive therapy
- Vision and hearing that can be operated normally or corrected
- Subject consent form signed by the patient or agent
Who cannot join
- Past or recent diagnosis of neurocognitive impairment
- Contraindications for electroacupuncture treatment within one month, such as: myocardial infarction, cerebrovascular disease, Increase Intracranial pressure, cerebral hemangioma, untreated fracture, cervical spine injury, pheochromocytoma, heart failure, severe heart valve disease, deep Venous embolism, etc
- Untreated substances abuse disorder(eg illegal drugs, alcohol)
- Unspecified mental disorder
- PattientUnable to cooperate
About this study
Official title: Comparison of Propofol Combine Ketamine Anesthesia and Propofol Anesthesia in Schizophrenia Electroconvulsive Therapy: A Randomized Controlled Trial
Electroconvulsive therapy (ECT) serves as an effective adjuvant modality for major depressive disorder, schizophrenia, or bipolar affective disorder refractory to or contraindicated to psychopharmacological treatment. Anesthetics have been introduced into ECT sessions to alleviate ECT-inducing discomfort sensation, tachycardia, arrhythmia, hypertension, and anxiety.
Propofol is able to rapidly cross the blood-brain barrier (BBB), which leads to rapid onset of sedation and hypnosis. Meanwhile, propofol has hemodynamic depressant effect and attenuates hypertensive surge during ECT. Characteristics mentioned above make propofol one of widely used anesthetics for anesthetized ECT. However, propofol is also well known for anticonvulsant property. Thus, dosage of electrical stimulus may be increased to achieve ideal seizure quality in this setting, which also leads to higher risk of subsequent cognitive impairment or other complications.
Read more
Ketamine has also been widely used in the induction of anesthesia for the treatment of major depressive disease in recent years. It has been found to increase the permeability and therapeutic effect of antidepressants. Compared to traditional Barbiturate drugs or propofol, do not increase the threshold of electricity required by electroporation, which can reduce the time required for symptom relief of those drugs, It is a viable alternative induction drug.
There have been confirmed that ketamine combine propofol can be used for electroconvulsive treatment in patients with major depression and bipolar disorder, and even better Electroconvulsive quality can be obtained. Reduce the number of Electroconvulsive treatments and reduce the duration of treatment. However, the current literature has not yet verified the clinical benefit of ketamine combine propofol as an anesthetic induction drug in patients with schizophrenia who are receiving electroconvulsive therapy, and it is worthy of further study.
In the investigator's clinical practice, the purpose of this experiment is to explore: compared with propofol base anesthesia alone, and the combine use of ketamine and propofol may reduce the threshold of seizure, improve the quality of Electroconvulsive therapy and shorten the course of treatment. The combine use and titrate the drugs helps to reduce the side effects of both ketamine and propofol (such as cardiovascular side effects and positive symptoms) , achieve better Electroconvulsive therapy and effects.
Read the detailed description
Electroconvulsive therapy (ECT) serves as an effective adjuvant or alternative modality for major depressive disorder, schizophrenia, or bipolar affective disorder refractory to or contraindicated to psychopharmacological treatment. Anesthetics have been introduced into ECT sessions to alleviate ECT-inducing discomfort sensation, tachycardia, arrhythmia, hypertension, and anxiety.
Propofol is highly lipid soluble and able to rapidly cross the blood-brain barrier (BBB), which leads to rapid onset of sedation and hypnosis. Meanwhile, propofol has hemodynamic depressant effect and attenuates hypertensive surge during ECT. Characteristics mentioned above make propofol one of widely used anesthetics for anesthetized ECT. However, propofol is also well known for anticonvulsant property, which may inevitably interfere with seizure propagation by electroconvulsive stimulus and diminish consequent efficacy. Thus, dosage of electrical stimulus may be increased to achieve ideal seizure quality in this setting, which also leads to higher risk of subsequent cognitive impairment or other complications.
Ketamine has also been widely used in the induction of anesthesia for the treatment of major depressive disease in recent years. It has been found to increase the permeability and therapeutic effect of antidepressants. Compared to traditional Barbiturate drugs or propofol, do not increase the threshold of electricity required by electroporation, which can reduce the time required for symptom relief of those drugs, It is a viable alternative induction drug. However, ketamine causes short-term dissociative symptoms, which may temporarily aggravate the positive symptoms of patients with schizophrenia after Electroconvulsive therapy, but the time of aggravation of positive symptoms generally does not exceed 30 minutes.
There have been many studies in the clinic, and it has been confirmed that ketamine combine propofol can be used for electroconvulsive treatment in patients with major depression and bipolar disorder, and even better Electroconvulsive quality can be obtained. Reduce the number of Electroconvulsive treatments and reduce the duration of treatment. However, the current literature has not yet verified the clinical benefit of ketamine combine propofol as an anesthetic induction drug in patients with schizophrenia who are receiving electroconvulsive therapy, and it is worthy of further study.
In the investigator's clinical practice, the purpose of this experiment is to explore: compared with propofol base anesthesia alone, and the combine use of ketamine and propofol may reduce the threshold of seizure, improve the quality of Electroconvulsive therapy and shorten the course of treatment. The combine use and titrate the drugs helps to reduce the side effects of both ketamine and propofol (such as cardiovascular side effects and positive symptoms) , achieve better Electroconvulsive therapy and effects.
- Conditions
- Schizophrenia
- Keywords
- Electroconvulsive therapy, ketamine
- Medical subject headings
- Schizophrenia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PropofolDrug
Propofol 10mg/ml IV push slowly 0.5-2mg/kg
KetamineDrug
Ketamine 50mg/ml IV push slowly 0.5- 1mg/kg
| Study group | Role | What they receive |
|---|---|---|
| ketamine + propofol group | Experimental | use ketamine + propofol for ECT induction Receives: Drug: Propofol; Drug: Ketamine |
| propofol group | Active comparator | use propofol only for ECT induction Receives: Drug: Propofol |
What is being measured
The primary outcome is the main question the study is designed to answer.
The therapeutic effect after completing electroconvulsive treatment course
Record the change of disease illness, use The Clinical Global Impression - Improvement scale (CGI-I) and Clinical Global Impression - Severity scale (CGI-S) CGI-S(Severity) range 1-7 1: normal 7:extremely severe CGI-I(Improvement) range 1-7
1:very much improved 7: vert much worse
Measured: At baseline, after 3rd course treatment(average 1-2 week), after 6th course treatment(average 2-4 week), after completion of treatment course( average 4-6 weeks, up to 8 weeks)
Secondary outcomes (1)
Change from baseline in Brief Psychiatric Rating Scale (BPRS)
Brief Psychiatric Rating Scale range:18-126
Contains the following items:
- Somatic concern
- Anxiety
- Depression
- Suicidality
- Guilt
- Hostility
- Elated Mood
- Grandiosity
- Suspiciousness
- Hallucinations
- Unusual thought content
- Bizarre behaviour
- Self-neglect
- Disorientation
- Conceptual disorganisation
- Blunted affect
- Emotional withdrawal
- Motor retardation
- Tension
- Uncooperativeness
- Excitement
- Distractibility
- Motor hyperactivity
- Mannerisms and posturing Different item scores will have different results and outcomes
""Different values represent is not meaning a better or worse outcome, it must compare to the patient's status before""
Measured: At baseline, after 3rd course treatment(average 1-2 week), after 6th course treatment(average 2-4 week), after completion of treatment course( average 4-6 weeks, up to 8 weeks)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Feb 2019
- Study start24 May 2019 (estimated)
- Primary completion19 Jan 2021 (estimated)
- Study completion20 Apr 2021 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for SchizophreniaStudies of the same condition, open and under way.
- More trials run by Chang Gung Memorial HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 1 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Chang Gung Memorial Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03829124
- Sponsor's protocol ID
- 201800056A3
- Status last verified
- Jan 2019
- First submitted
- 13 Jan 2019
- Last updated
- 29 May 2019
- Results posted
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 29 May 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Propofol Combine Ketamine Anesthesia and Propofol Anesthesia in Schizophrenia Electroconvulsive Therapy: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT03829124
- Acronym / sponsor ID
- 201800056A3
- Conditions
- Schizophrenia
- Keywords
- Electroconvulsive therapy, ketamine
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 1 participants (estimated)
- Lead sponsor
- Chang Gung Memorial HospitalUniversity, hospital or other
- Study start
- 24 May 2019 (estimated)
- Primary completion
- 19 Jan 2021 (estimated)
- Study completion
- 20 Apr 2021 (estimated)
- First posted
- 4 Feb 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Electroconvulsive therapy (ECT) serves as an effective adjuvant modality for major depressive disorder, schizophrenia, or bipolar affective disorder refractory to or contraindicated to psychopharmacological treatment. Anesthetics have been introduced into ECT sessions to alleviate ECT-inducing discomfort sensation, tachycardia, arrhythmia, hypertension, and anxiety.
Propofol is able to rapidly cross the blood-brain barrier (BBB), which leads to rapid onset of sedation and hypnosis. Meanwhile, propofol has hemodynamic depressant effect and attenuates hypertensive surge during ECT. Characteristics mentioned above make propofol one of widely used anesthetics for anesthetized ECT. However, propofol is also well known for anticonvulsant property. Thus, dosage of electrical stimulus may be increased to achieve ideal seizure quality in this setting, which also leads to higher risk of subsequent cognitive impairment or other complications.
Ketamine has also been widely used in the induction of anesthesia for the treatment of major depressive disease in recent years. It has been found to increase the permeability and therapeutic effect of antidepressants. Compared to traditional Barbiturate drugs or propofol, do not increase the threshold of electricity required by electroporation, which can reduce the time required for symptom relief of those drugs, It is a viable alternative induction drug.
There have been confirmed that ketamine combine propofol can be used for electroconvulsive treatment in patients with major depression and bipolar disorder, and even better Electroconvulsive quality can be obtained. Reduce the number of Electroconvulsive treatments and reduce the duration of treatment. However, the current literature has not yet verified the clinical benefit of ketamine combine propofol as an anesthetic induction drug in patients with schizophrenia who are receiving electroconvulsive therapy, and it is worthy of further study.
In the investigator's clinical practice, the purpose of this experiment is to explore: compared with propofol base anesthesia alone, and the combine use of ketamine and propofol may reduce the threshold of seizure, improve the quality of Electroconvulsive therapy and shorten the course of treatment. The combine use and titrate the drugs helps to reduce the side effects of both ketamine and propofol (such as cardiovascular side effects and positive symptoms) , achieve better Electroconvulsive therapy and effects.
Detailed description
Electroconvulsive therapy (ECT) serves as an effective adjuvant or alternative modality for major depressive disorder, schizophrenia, or bipolar affective disorder refractory to or contraindicated to psychopharmacological treatment. Anesthetics have been introduced into ECT sessions to alleviate ECT-inducing discomfort sensation, tachycardia, arrhythmia, hypertension, and anxiety.
Propofol is highly lipid soluble and able to rapidly cross the blood-brain barrier (BBB), which leads to rapid onset of sedation and hypnosis. Meanwhile, propofol has hemodynamic depressant effect and attenuates hypertensive surge during ECT. Characteristics mentioned above make propofol one of widely used anesthetics for anesthetized ECT. However, propofol is also well known for anticonvulsant property, which may inevitably interfere with seizure propagation by electroconvulsive stimulus and diminish consequent efficacy. Thus, dosage of electrical stimulus may be increased to achieve ideal seizure quality in this setting, which also leads to higher risk of subsequent cognitive impairment or other complications.
Ketamine has also been widely used in the induction of anesthesia for the treatment of major depressive disease in recent years. It has been found to increase the permeability and therapeutic effect of antidepressants. Compared to traditional Barbiturate drugs or propofol, do not increase the threshold of electricity required by electroporation, which can reduce the time required for symptom relief of those drugs, It is a viable alternative induction drug. However, ketamine causes short-term dissociative symptoms, which may temporarily aggravate the positive symptoms of patients with schizophrenia after Electroconvulsive therapy, but the time of aggravation of positive symptoms generally does not exceed 30 minutes.
There have been many studies in the clinic, and it has been confirmed that ketamine combine propofol can be used for electroconvulsive treatment in patients with major depression and bipolar disorder, and even better Electroconvulsive quality can be obtained. Reduce the number of Electroconvulsive treatments and reduce the duration of treatment. However, the current literature has not yet verified the clinical benefit of ketamine combine propofol as an anesthetic induction drug in patients with schizophrenia who are receiving electroconvulsive therapy, and it is worthy of further study.
In the investigator's clinical practice, the purpose of this experiment is to explore: compared with propofol base anesthesia alone, and the combine use of ketamine and propofol may reduce the threshold of seizure, improve the quality of Electroconvulsive therapy and shorten the course of treatment. The combine use and titrate the drugs helps to reduce the side effects of both ketamine and propofol (such as cardiovascular side effects and positive symptoms) , achieve better Electroconvulsive therapy and effects.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| ketamine + propofol group | Experimental | Drug: Propofol, Drug: Ketamineuse ketamine + propofol for ECT induction |
| propofol group | Active comparator | Drug: Propofoluse propofol only for ECT induction |
Who may qualify
- Ages
- 20 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- The clinical diagnosis is consistent with the schizophrenia, and the diagnostic requirements are in accordance with the Structural Diagnostic Interview Scale (SCID for Diagnostic and Statistical Manual of Mental Disorders (DSM-5)) and are recognized by psychiatrists as needing electroconvulsive therapy
- Vision and hearing that can be operated normally or corrected
- Subject consent form signed by the patient or agent
Key exclusion criteria (5 listed)
- Past or recent diagnosis of neurocognitive impairment
- Contraindications for electroacupuncture treatment within one month, such as: myocardial infarction, cerebrovascular disease, Increase Intracranial pressure, cerebral hemangioma, untreated fracture, cervical spine injury, pheochromocytoma, heart failure, severe heart valve disease, deep Venous embolism, etc
- Untreated substances abuse disorder(eg illegal drugs, alcohol)
- Unspecified mental disorder
- PattientUnable to cooperate
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| PropofolPropofol 10mg/ml IV push slowly 0.5-2mg/kg | Drug | ketamine + propofol group, propofol group |
| KetamineKetamine 50mg/ml IV push slowly 0.5- 1mg/kg | Drug | ketamine + propofol group |
Primary outcome
The therapeutic effect after completing electroconvulsive treatment course
Time frame: At baseline, after 3rd course treatment(average 1-2 week), after 6th course treatment(average 2-4 week), after completion of treatment course( average 4-6 weeks, up to 8 weeks)
Record the change of disease illness, use The Clinical Global Impression - Improvement scale (CGI-I) and Clinical Global Impression - Severity scale (CGI-S) CGI-S(Severity) range 1-7 1: normal 7:extremely severe CGI-I(Improvement) range 1-7 1:very much improved 7: vert much worse
1 secondary outcome
Change from baseline in Brief Psychiatric Rating Scale (BPRS)
Time frame: At baseline, after 3rd course treatment(average 1-2 week), after 6th course treatment(average 2-4 week), after completion of treatment course( average 4-6 weeks, up to 8 weeks)
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 May 2019.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Propofol and Ketamine in people with Schizophrenia, run by Chang Gung Memorial Hospital.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 29 May 2019. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The therapeutic effect after completing electroconvulsive treatment course (time frame: At baseline, after 3rd course treatment(average 1-2 week), after 6th course treatment(average 2-4 week), after completion of treatment course( average 4-6 weeks, up to 8 weeks)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 May 2019.