Treatment Resistant Major Depression DisorderNCT03347487
DBS of the Habenula for Treatment- Resistant Major Depression
A study testing Deep brain stimuation system implantation in people with Treatment Resistant Major Depression Disorder, run by Ruijin Hospital at 1 site in China.
Trial summary
The habenula(Hb) is an epithalamic structure located at the center of the dorsal diencephalic conduction system, a pathway involved in linking forebrain to midbrain regions. An increasing number of studies indicates that overactivity in the lateral habeluna(LHb) is present during depressed states, where it could drive… Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Treatment Resistant Major Depression Disorder
- What is being tested?
- Deep brain stimuation system implantation
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 7 participants
- Where
- 1 siteChina
- Study dates
- 13 Nov 2017to 30 May 2021
- Phase
- Interventional
- 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 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Men and women(non-pregnant) aged 18-65 years old;
- DSM-5 diagnosis (assessed by Structured Clinical Interview for DSM-5) of a current major depressive episode(MDE), either nonpsychotic unipolar major depressive disorder (MDD) or bipolar disorder (BD);
- Chronic illness with current MDE ≥ 24 months duration and/or recurrent illness with at least a total of 4 lifetime episodes (including current episode ≥ 12 months) and a minimum of 5 y since the onset of the first depressive episode;
- For subjects with a bipolar disorder: the last manic or hypomanic episode must have been ≥ 24 months before study enrollment and patients must be maintained on a mood stabilizer (e.g. lithium or another mood stabilizer approved for bipolar disorder)
- Treatment resistance defined as Failure of at least 3 adequate treatments from at least two distinctly different classes (SSRI, SNRI, NaSSA, TCA+, lithium-addition) for a period of 6-8 weeks. If diagnosed as bipolar, failure to respond to (or inability to tolerate) a minimum of three treatments approved for bipolar disorder, including lithium and at least one medication FDA-approved for bipolar depression (e.g., olanzapine/fluoxetine combination, quetiapine, lurasidone).
- At least 1 session of ECT, for which the series of ECT was terminated either due to adverse effects or insufficient response (including at least 6 sessions of bilateral ECT). Or unable to recieve ECT.
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- Symptom Severity: HAMD-17 total ≥21;
- Stable antidepressant medical regimen for the month preceding surgery;
- Anticipates a stable psychotropic medication regimen in the next 12 months;
- Able and willing to give written informed consent;
- Modified mini-mental state examination (MMSE) score ≥ 27;
Who cannot join
- Schizophrenia /history of psychosis unrelated to MDD;
- Severe personality disorder (assessed by SCID-II);
- Alcohol or substance abuse/dependence within 6 months, excluding nicotine dependence;
- Current substantial suicidal risk as defined by a plan or clear immediate intent for self-harm, or had a serious suicide attempt within the last year;
- Neurological disease (e.g., Parkinson's disease)
- Any history of seizure disorder or hemorrhagic stroke;
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- Abnormal brain MRI ;
- Previous sterosurgery;
- Any medical contraindication to surgery;
- Does not have adequate family/friend support as determined by psychological screening and/or interview;
- Unable to maintain a stable psychotropic medication regimen in the next 12 months;
- Pregnant or has plans to become pregnant in the next 12 months;
Trial locations and contacts
1 site in 1 country.
China1 site
Shanghai Ruijin Hospital Functional Neurosurgery
Shanghai, Shanghai Municipality, 200025
About this study
Official title: Deep Brain Stimulation of the Bilateral Habenula for Treatment- Resistant Major Depression: An Open Label Pilot Trial
The habenula(Hb) is an epithalamic structure located at the center of the dorsal diencephalic conduction system, a pathway involved in linking forebrain to midbrain regions. An increasing number of studies indicates that overactivity in the lateral habeluna(LHb) is present during depressed states, where it could drive the changes in midbrain activity linked to depression. Deep brain stimulation(DBS) of the major afferent bundle (i.e., stria medullaris thalami) of the LHb can treat treatment-resistant major depression(TRD). There is no clinical case of directly stimulating habeluna for treatment TRD. This research will investigate effectiveness and safety of bilateral DBS to habenula for patients with TRD. This study will also use structural and functional MRI to explore the underlying mechanism of Hb's effects on TRD.
- Being tested
- Deep brain stimuation system implantation
- Keywords
- Bilateral Habenula, Treatment Resistant Major Depressive Disorder
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Deep brain stimuation system implantationProcedure or surgery
Also called DBS, Activa RC System
All subjects will receive bilateral surgical implantation of DBS system.The Medtronic DBS 3389 electrode is utilized in this study. The DBS system includes a dual-channel neurostimulator kit, lead kit, extension kit, clinician-operated wireless programmer, test stimulator, and patient controller.
| Study group | Role | What they receive |
|---|---|---|
| Deep Brain Stimulation of Bilateral Habenula | Experimental | Not described Receives: Procedure: Deep brain stimuation system implantation |
What is being measured
The primary outcome is the main question the study is designed to answer.
changes in the Hamilton Depression Scale(HAMD-17) score from baseline to 9 months
The score of the scale ranges from 0 to 50.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
changes in the Montgomery-Asberg Depression Rating Scale from baseline to 9 months
The score of the scale ranges from 0 to 60.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Secondary outcomes (13)
changes in the brain activity
Measured: Baseline (preoperative),one month, 9 months
Side Effects
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Young Mania Rating Scale (YMRS)
YMRS is an eleven-item multiple choice diagnostic questionnaire which psychiatrists use to measure the severity of manic episodes. The score of the scale ranges from 0 to 60. Higher score means more severity of mania.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Changes in Hamilton Anxiety Scales(HAMA)
Clinician administered assessment.The score of the scale ranges from 0 to 56.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Global Assessment of Functioning Scale(GAF)
Clinician administered assessment.The score of the scale Scores range from 100 (extremely high functioning) to 1 (severely impaired).
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Columbia Suicide Severity Rating Scale (C-SSRS)
Clinician administered assessment.The Screener contains 6 "yes" or "no" questions in which respondents are asked to indicate whether they have experienced several thoughts or feelings relating to suicide over the past month and behaviors over their lifetime and past 3 months. Each question addresses a different component of the respondent's suicide ideation severity and behavior.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Changes in Beck Depression Inventory
Self-rating scale. The score of the scale ranges from 0 to 63. Higher score means more severity of depression.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Chang in Pittsburgh Sleep Quality Index
The Pittsburgh Sleep Quality Index (PSQI) is a self-report questionnaire that assesses sleep quality over a 1-month time interval. The measure consists of 19 individual items, creating 7 components that produce one global score ranging from 0 to 21. The high score means poor quality of sleep.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
World Health Organization Quality of Life-BREF(WHO-BREF)
The World Health Organization Quality of Life - BREF (WHOQOL-BREF) is a self-report questionnaire which assesses 4 domains of quality of life (QOL): physical health, psychological health, social relationships, and environment. It contains 26 items which is a 5 points scale. The higher score means better quality of life.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
the MOS item short from health survey (SF-36)
SF-36 is a set of generic, coherent, and easily administered quality-of-life measures. These measures rely upon patient self-reporting and are now widely utilized by managed care organizations and by Medicare for routine monitoring and assessment of care outcomes in adult patients. The higher score means better quality of life.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Quality of Life Enjoyment and Satisfaction Questionnaire - Short Form
The scoring of the Q-LES-Q-SF involves summing only the first 14 items to yield a raw total score. The last two items are not included in the total score but are stand-alone items. The raw total score ranges from 14 to 70.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Sheehan Disability Scale
Self-rating scale. The SDS is a composite of three self-rated items designed to measure the extent to which three major domains in the patient's life are functionally impaired by psychiatric or medical symptoms. The SDS assesses functional impairment in three major life domains: work, social life/leisure activities, and family life/home responsibilities. The higher scores mean more severity of disability.
Measured: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Changes in Neuropsychological measures(Scores of CANTAB tasks)
Neuropsychological measures contains six tasks which are Stop Signal Task, Spatial Working Memory, Paired Associated Learning, Stocking of Cambridge, Intra Extra dimensional Set Shifting, Reaction time Task
Measured: Baseline (preoperative),3 months, 9 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Nov 2017
- Study start13 Nov 2017
- Primary completion30 May 2021
- Study completion30 May 2021
Why it stopped: 7 patients were included in this study which aimed for 13 participants. Preliminary data were sufficient for developing further study.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (6)Papers the sponsor has linked to this study.
- Other trials for Treatment Resistant Major Depression DisorderStudies of the same condition, open and under way.
- More trials run by Ruijin 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 N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- All subjects will receive bilateral surgical implantation of DBS system.
- Masking
- None (open label)
- Enrolment
- 7 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ruijin Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Bomin Sun, Ruijin Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03347487
- Sponsor's protocol ID
- 2018 DBS-Hb MDD
- Status last verified
- Jun 2021
- First submitted
- 11 Nov 2017
- Last updated
- 9 Jun 2021
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Sartorius A, Kiening KL, Kirsch P, von Gall CC, Haberkorn U, Unterberg AW, Henn FA, Meyer-Lindenberg A. Remission of major depression under deep brain stimulation of the lateral habenula in a therapy-refractory patient. Biol Psychiatry. 2010 Jan 15;67(2):e9-e11. doi: 10.1016/j.biopsych.2009.08.027. No abstract available.
PubMed 19846068Sartorius A, Henn FA. Deep brain stimulation of the lateral habenula in treatment resistant major depression. Med Hypotheses. 2007;69(6):1305-8. doi: 10.1016/j.mehy.2007.03.021. Epub 2007 May 10.
PubMed 17498883Kiening K, Sartorius A. A new translational target for deep brain stimulation to treat depression. EMBO Mol Med. 2013 Aug;5(8):1151-3. doi: 10.1002/emmm.201302947. Epub 2013 Jul 4. No abstract available.
PubMed 23828711Dougherty DD, Rezai AR, Carpenter LL, Howland RH, Bhati MT, O'Reardon JP, Eskandar EN, Baltuch GH, Machado AD, Kondziolka D, Cusin C, Evans KC, Price LH, Jacobs K, Pandya M, Denko T, Tyrka AR, Brelje T, Deckersbach T, Kubu C, Malone DA Jr. A Randomized Sham-Controlled Trial of Deep Brain Stimulation of the Ventral Capsule/Ventral Striatum for Chronic Treatment-Resistant Depression. Biol Psychiatry. 2015 Aug 15;78(4):240-8. doi: 10.1016/j.biopsych.2014.11.023. Epub 2014 Dec 13.
PubMed 25726497Bergfeld IO, Mantione M, Hoogendoorn ML, Ruhe HG, Notten P, van Laarhoven J, Visser I, Figee M, de Kwaasteniet BP, Horst F, Schene AH, van den Munckhof P, Beute G, Schuurman R, Denys D. Deep Brain Stimulation of the Ventral Anterior Limb of the Internal Capsule for Treatment-Resistant Depression: A Randomized Clinical Trial. JAMA Psychiatry. 2016 May 1;73(5):456-64. doi: 10.1001/jamapsychiatry.2016.0152.
PubMed 27049915Huang Y, Sun B, Debarros J, Zhang C, Zhan S, Li D, Zhang C, Wang T, Huang P, Lai Y, Brown P, Cao C, Tan H. Increased theta/alpha synchrony in the habenula-prefrontal network with negative emotional stimuli in human patients. Elife. 2021 Jul 12;10:e65444. doi: 10.7554/eLife.65444.
PubMed 34251338
Study at a glance
From the registry record, last updated by the sponsor on 9 Jun 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Deep Brain Stimulation of the Bilateral Habenula for Treatment- Resistant Major Depression: An Open Label Pilot Trial
- ClinicalTrials.gov ID
- NCT03347487
- Acronym / sponsor ID
- 2018 DBS-Hb MDD
- Keywords
- Bilateral Habenula, Treatment Resistant Major Depressive Disorder
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: 7 patients were included in this study which aimed for 13 participants. Preliminary data were sufficient for developing further study.
- Enrolment
- 7 participants (actual)
- Lead sponsor
- Ruijin HospitalUniversity, hospital or other
- Study start
- 13 Nov 2017 (actual)
- Primary completion
- 30 May 2021 (actual)
- Study completion
- 30 May 2021 (actual)
- First posted
- 20 Nov 2017 (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.
The habenula(Hb) is an epithalamic structure located at the center of the dorsal diencephalic conduction system, a pathway involved in linking forebrain to midbrain regions. An increasing number of studies indicates that overactivity in the lateral habeluna(LHb) is present during depressed states, where it could drive the changes in midbrain activity linked to depression. Deep brain stimulation(DBS) of the major afferent bundle (i.e., stria medullaris thalami) of the LHb can treat treatment-resistant major depression(TRD). There is no clinical case of directly stimulating habeluna for treatment TRD. This research will investigate effectiveness and safety of bilateral DBS to habenula for patients with TRD. This study will also use structural and functional MRI to explore the underlying mechanism of Hb's effects on TRD.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- All subjects will receive bilateral surgical implantation of DBS system.
| Arm | Type | Receives |
|---|---|---|
| Deep Brain Stimulation of Bilateral Habenula | Experimental | Procedure: Deep brain stimuation system implantation |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (11 listed)
- Men and women(non-pregnant) aged 18-65 years old;
- DSM-5 diagnosis (assessed by Structured Clinical Interview for DSM-5) of a current major depressive episode(MDE), either nonpsychotic unipolar major depressive disorder (MDD) or bipolar disorder (BD);
- Chronic illness with current MDE ≥ 24 months duration and/or recurrent illness with at least a total of 4 lifetime episodes (including current episode ≥ 12 months) and a minimum of 5 y since the onset of the first depressive episode;
- For subjects with a bipolar disorder: the last manic or hypomanic episode must have been ≥ 24 months before study enrollment and patients must be maintained on a mood stabilizer (e.g. lithium or another mood stabilizer approved for bipolar disorder)
- Treatment resistance defined as Failure of at least 3 adequate treatments from at least two distinctly different classes (SSRI, SNRI, NaSSA, TCA+, lithium-addition) for a period of 6-8 weeks. If diagnosed as bipolar, failure to respond to (or inability to tolerate) a minimum of three treatments approved for bipolar disorder, including lithium and at least one medication FDA-approved for bipolar depression (e.g., olanzapine/fluoxetine combination, quetiapine, lurasidone).
Key exclusion criteria (12 listed)
- Schizophrenia /history of psychosis unrelated to MDD;
- Severe personality disorder (assessed by SCID-II);
- Alcohol or substance abuse/dependence within 6 months, excluding nicotine dependence;
- Current substantial suicidal risk as defined by a plan or clear immediate intent for self-harm, or had a serious suicide attempt within the last year;
- Neurological disease (e.g., Parkinson's disease)
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 |
|---|---|---|
| Deep brain stimuation system implantationAlso: DBS, Activa RC SystemAll subjects will receive bilateral surgical implantation of DBS system.The Medtronic DBS 3389 electrode is utilized in this study. The DBS system includes a dual-channel neurostimulator kit, lead kit, extension kit, clinician-operated wireless programmer, test stimulator, and patient controller. | Procedure or surgery | Deep Brain Stimulation of Bilateral Habenula |
Primary outcome
changes in the Hamilton Depression Scale(HAMD-17) score from baseline to 9 months
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
The score of the scale ranges from 0 to 50.
changes in the Montgomery-Asberg Depression Rating Scale from baseline to 9 months
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
The score of the scale ranges from 0 to 60.
13 secondary outcomes
changes in the brain activity
Time frame: Baseline (preoperative),one month, 9 months
Side Effects
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Young Mania Rating Scale (YMRS)
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Changes in Hamilton Anxiety Scales(HAMA)
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Global Assessment of Functioning Scale(GAF)
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Columbia Suicide Severity Rating Scale (C-SSRS)
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Changes in Beck Depression Inventory
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Chang in Pittsburgh Sleep Quality Index
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
World Health Organization Quality of Life-BREF(WHO-BREF)
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
the MOS item short from health survey (SF-36)
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Quality of Life Enjoyment and Satisfaction Questionnaire - Short Form
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Sheehan Disability Scale
Time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months
Changes in Neuropsychological measures(Scores of CANTAB tasks)
Time frame: Baseline (preoperative),3 months, 9 months
Results and safety
The study was stopped early (reason given: 7 patients were included in this study which aimed for 13 participants. Preliminary data were sufficient for developing further study.). Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Jun 2021.
- Background: PubMed 19846068Sartorius A, Kiening KL, Kirsch P, von Gall CC, Haberkorn U, Unterberg AW, Henn FA, Meyer-Lindenberg A. Remission of major depression under deep brain stimulation of the lateral habenula in a therapy-refractory patient. Biol Psychiatry. 2010 Jan 15;67(2):e9-e11. doi: 10.1016/j.biopsych.2009.08.027. No abstract available.
- Background: PubMed 17498883Sartorius A, Henn FA. Deep brain stimulation of the lateral habenula in treatment resistant major depression. Med Hypotheses. 2007;69(6):1305-8. doi: 10.1016/j.mehy.2007.03.021. Epub 2007 May 10.
- Background: PubMed 23828711Kiening K, Sartorius A. A new translational target for deep brain stimulation to treat depression. EMBO Mol Med. 2013 Aug;5(8):1151-3. doi: 10.1002/emmm.201302947. Epub 2013 Jul 4. No abstract available.
- Background: PubMed 25726497Dougherty DD, Rezai AR, Carpenter LL, Howland RH, Bhati MT, O'Reardon JP, Eskandar EN, Baltuch GH, Machado AD, Kondziolka D, Cusin C, Evans KC, Price LH, Jacobs K, Pandya M, Denko T, Tyrka AR, Brelje T, Deckersbach T, Kubu C, Malone DA Jr. A Randomized Sham-Controlled Trial of Deep Brain Stimulation of the Ventral Capsule/Ventral Striatum for Chronic Treatment-Resistant Depression. Biol Psychiatry. 2015 Aug 15;78(4):240-8. doi: 10.1016/j.biopsych.2014.11.023. Epub 2014 Dec 13.
- Background: PubMed 27049915Bergfeld IO, Mantione M, Hoogendoorn ML, Ruhe HG, Notten P, van Laarhoven J, Visser I, Figee M, de Kwaasteniet BP, Horst F, Schene AH, van den Munckhof P, Beute G, Schuurman R, Denys D. Deep Brain Stimulation of the Ventral Anterior Limb of the Internal Capsule for Treatment-Resistant Depression: A Randomized Clinical Trial. JAMA Psychiatry. 2016 May 1;73(5):456-64. doi: 10.1001/jamapsychiatry.2016.0152.
- Derived from this study: PubMed 34251338Huang Y, Sun B, Debarros J, Zhang C, Zhan S, Li D, Zhang C, Wang T, Huang P, Lai Y, Brown P, Cao C, Tan H. Increased theta/alpha synchrony in the habenula-prefrontal network with negative emotional stimuli in human patients. Elife. 2021 Jul 12;10:e65444. doi: 10.7554/eLife.65444.
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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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Deep brain stimuation system implantation in people with Treatment Resistant Major Depression Disorder, run by Ruijin Hospital at 1 site in China.
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 11 inclusion and 12 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: stopped early, as of the sponsor's last update on 9 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
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.
Are results available for this study?
The study was stopped early (reason given: 7 patients were included in this study which aimed for 13 participants. Preliminary data were sufficient for developing further 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?
changes in the Hamilton Depression Scale(HAMD-17) score from baseline to 9 months (time frame: Baseline (preoperative),one month, 3 months, 6 months, 9 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03347487, which also lists 6 linked publications.
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 9 Jun 2021.