EpilepsyPhase 1NCT02695537
University of Alabama at Birmingham (UAB) Pediatric CBD Program
A Phase 1 study testing Epidiolex in people with Epilepsy and Seizures, run by University of Alabama at Birmingham at 1 site in United States.
Trial summary
The purpose of this study is to evaluate the safety and tolerability of Epidiolex at various doses between 5 mg/kg/day and 50 mg/kg/day as an additional (add-on) drug for treating debilitating, drug-resistant epilepsy. Read more about this study
- Who is it for?
- Ages 1 year to 19 years
- What is being tested?
- Epidiolex
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 89 participants
- Where
- 1 siteUnited States
- Study dates
- Apr 2015to 27 Feb 2019
- Phase
- Phase 1
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 1 year to 19 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
- Patients between 1 years (12 months)-18 years with drug resistant epilepsy confirmed by video EEG recording report, and
- Patient should have history of a trial of at least four anti-epileptic drugs (AEDs), including one trial of a combination of two concomitant drugs without successful seizure control. Vagal nerve stimulation (VNS), Responsive Neurostimulation (RNS) deep brain stimulation, or the ketogenic diet can be considered equivalent to a drug trial. Patient suffering from an epileptic syndrome that is known to be refractory to treatment, such as Dravet or Lennox-Gastaut Syndrome, may be included after a trial of only two drugs, and
- Between 1-4 baseline anti-epileptic drugs at stable doses for a minimum of 4 weeks prior to submitting records for review by the CBD Treatment Approval Committee.
- VNS or RNS must be on stable settings for a minimum of 3 months.
- If on ketogenic diet, must be on stable ration for a minimum of 3 months.
- Review of the following patient medical information:
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- Most recent Brain MRI report,
- Most recent ECG report,
- Video/EEG monitoring report confirming the diagnosis of epilepsy,
- Evidence that the patient has failed 4 AEDs as indicated above,
- Patient must have at least 4 clinically countable seizures per month,
- Seizure history to include a documented history of generalized (drop, atonic, tonic clonic, and/or myoclonic) seizures, focal seizures without loss of consciousness with a motor component, focal seizures with loss of consciousness, or focal seizures with secondary generalization, complex partial seizures with a motor or tonic component, and I or altered awareness seizures,
- Results of routine testing including blood work (Complete Blood Count (CBC), Comprehensive Metabolic Panel (CMP), Liver Function Tests (LFTs), renal panel, Urinary Analysis (UA), and levels of all AEDs) and digital copy of a routine EEG along with the formal written report performed within 3 months prior to submitting records for CBD Treatment Approval review. If applicable, results of any metabolic or genetic testing performed should be included in submitted records for review. If any AED dose was adjusted in the preceding 3 months, level on the new dose will need to be provided.
- If applicable, documentation (including date of surgery) of prior VNS, RNS, Corpus Callosotomy, or other epilepsy surgery the patient has received.
- Acceptable method of contraception (or abstinence) for women of childbearing potential and for male patients with partners of childbearing potential, and female patients must have a negative urine pregnancy test on the day of initiating CBD.
- For patients who agree to participate in the optional neuroimaging sub-study, an MRI screen will be obtained to show that the patient does not have contraindication to receiving MRI/functional MRI (fMRI) at 3 Tesla (e.g., metallic artifact).
- Patients are able to supply investigator with seizure calendars for the past 3 months prior to submitting records for CBD Treatment Approval Committee review. The patient will need to provide an updated calendar at the time of enrollment.
- Approval for inclusion by the CBD Treatment Approval Committee.
- Current State of Alabama Resident
- Acceptable documentation of Alabama residency includes the following:
- a state issued identification (ID), such as a driver's license, from patient or patient's parent/ legally authorized representative (LAR).
- documents showing the patient or patient's parent/LAR rents/owns property in the state,
- state voter registration from patient or patient's parent/LAR, or
- a recent state tax return from patient or patient's parent/LAR.
Who cannot join
- Active Psychogenic non-epileptic seizures (PNES); Patients with more than 1 year freedom from PNES will not be excluded,
- Patients who are pregnant, breastfeeding, or not using acceptable methods of contraception during the course of the study and for three months thereafter,
- Male patient's partner is of child bearing potential; unless willing to ensure that they (male patients) or their partner(s) are using acceptable methods of contraception during the course of the study and for three months thereafter
- History of substance abuse/addiction,
- Use of medical marijuana or CBD based product in the past 30 days,
- Initiation of felbamate within last 12 months,
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- Allergy to CBD or any marijuana-type products,
- Alanine Aminotransferase (ALT) >5 x Upper Limit of Normal (ULN) or Aspartate Aminotransferase (AST) >5 x ULN, as seen in participant's laboratory results submitted to the CBD Treatment Approval Committee for review.
- Hemoglobin <10 or Hematocrit <30 or White Blood Cell (WBC) < 2000, as seen in participant's laboratory results submitted to the CBD Treatment Approval Committee for review.
- In Investigator's judgement, active medical condition/treatment that impacts study activities.
- Unable to provide consent (and no LAR),
- Unable/Failure to comply with study visits/requirements and/or instructions.
- Confirmed diagnosis for Dravet Syndrome or Lennox-Gastaut Syndrome that qualifies the patient for a Greenwich (GW) Dravet Syndrome or Lennox-Gastaut Syndrome randomized controlled clinical trial for which the patient is eligible pursuant to the GW clinical trial enrollment criteria unless
- (a) there is no study that is either actively open for enrollment of patients at The University of Alabama at Birmingham (UAB) or that is expected to actively begin enrolling patients at UAB within two (2) months of the date on which the patient is screened for the UAB Pediatric CBD Program or UAB Adult CBD Program. Primary residence in a State different than Alabama.
- Subjects with contraindications to MRI/fMRI at 3 Tesla (e.g., metallic artifact) will not be offered participation in the optional sub-study.
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Alabama at Birmingham
Birmingham, Alabama, 35233
About this study
The purpose of this study is to evaluate the safety and tolerability of Epidiolex at various doses between 5 mg/kg/day and 50 mg/kg/day as an additional (add-on) drug for treating debilitating, drug-resistant epilepsy.
Read the detailed description
The specific goals of this phase I dose finding study, conducted in consecutively enrolled patients 1-19 years of age, are to prospectively and longitudinally assess the safety and tolerability, including cognitive effects, of Cannabidiol (CBD) at various doses between 5 mg/kg/day and 25 mg/kg/day, with additional titration in some cases up to 50 mg/kg/day. In order to participate in the study, participants will need to fulfill the inclusion and exclusion criteria.
The goal of the study is to fulfill the mandate of "Carly's Law" and to provide patients with debilitating epileptic conditions with access to CBD as an add-on treatment. Other care including routine neurological care unrelated to participation in the CBD study will need to be provided by patients' primary/current treating neurologist.
- Being tested
- Epidiolex
- Medical subject headings
- Epilepsy, Seizures
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
EpidiolexDrug
Also called Cannabidiol, CBD
Epidiolex oral solution (100 mg/mL CBD concentration) with inactive ingredients including anhydrous ethanol, sesame seed oil, strawberry flavor, and sucralose).
| Study group | Role | What they receive |
|---|---|---|
| Epidiolex 100 milligram/milliliter (mg/mL) oral solution | Experimental | Participants will receive a CBD starting dose of 5 mg/kg/day in twice daily dosing and titrate by 5 mg/kg/2 weeks up to 25 mg/kg/day. Additional increases in dosing, by 5 mg/kg/day up to a maximum of 50 mg/kg/day, may be instituted at the discretion of the treating Principle Investigator (PI).
If a subject experiences a "clinically significant" or "dose limiting" adverse event (AE) or severe adverse event (SAE) attributable to CBD, the investigator will determine if a dose reduction or taper is necessary (decreases will occur in 5 mg/kg/2 week increments or at a rate felt appropriate by the treating PI). Receives: Drug: Epidiolex |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With Severe Adverse Events (Increase in Seizure Frequency by More Than 100% Leading to Emergency Room Visit or Hospitalization).
Severe adverse events (SAEs) were defined as increase in seizure frequency by more than 100% leading to emergency room visit or hospitalization. During study clinic and phone visits, adverse and severe adverse event monitoring and reporting were assessed among all participants. Data was recorded and stored in the UAB RedCap System.
Measured: For 1 Year following Enrollment
Number of Participants With Change in Resting Blood Pressure or Heart Rate by 25% if Considered Significant by Managing Neurologist.
During study clinic visits, participant vital signs, including blood pressure and heart rate, were collected. Data was recorded and stored in the UAB RedCap System. Clinically significant was determined by using the Common Toxicity Criteria for Adverse Events (CTCAE) Version 4.03. Adverse events categorized as a grade 3 or above were considered clinically significant. Adverse events grade 4 or above were considered severe adverse events.
Measured: For 1 Year following Enrollment
Number of Participants With Change in Laboratory Tests Considered by Managing Neurologists as Clinically Significant.
During study clinic visits, participants received laboratory testing to assess for side effects and toxicity. Data was recorded and stored in the UAB RedCap System. Laboratory testing included Complete Blood Count (CBC), Comprehensive Metabolic Panel (CMP; included Liver Function Tests (LFTs) mainly looking at alanine aminotransferase (ALT) and aspartate aminotransferase (AST)), Urine Analysis (UA), and Antiepileptic Drug (AED) levels. Clinically significant was determined by using the Common Toxicity Criteria for Adverse Events (CTCAE) Version 4.03. Adverse events categorized as a grade 3 or above were considered clinically significant. Adverse events grade 4 or above were considered severe adverse events.
Measured: For 1 Year following Enrollment
Secondary outcomes (2)
Change in Seizure Frequency as Measured in Total Number of Seizures Per Month.
Participants were given seizure diary logs and dairy data collection was done at study clinic visits. Data was recorded and stored in the UAB RedCap System. The analysis plan was to assess the pattern of change in seizure frequency over time, relative to baseline, following CBD exposure. Since the baseline measure was reported at the time of screening, there was some tendency to overestimate the frequency of seizures in the historically reported interval. This was examined by comparing the initial study visits improvement versus the pattern of control over time, and was assessed using graphic techniques and summary statistics.
Measured: For 1 Year following Enrollment
Change in Seizure Severity Measured by the Chalfont Seizure Severity Scale (Duncan & Sander, 1991, JNNP).
Seizure severity was collected during study clinic and phone visits using the Chalfont Seizure Severity Scale (CSSS) (Duncan \& Sander, 1991, JNNP) through verbal reporting. The CSSS measured components of seizures most disturbing or disruptive to the participants. The total scores for a given seizure type was its severity score. High scores indicated high severity of the seizures (no fixed maximum value), while a score of zero indicated low severity. Scores were recorded and stored in the UAB RedCap System. The analysis plan was to assess the pattern of change in seizure severity scores over time, relative to baseline, following CBD exposure. Since the baseline measure was reported at the time of screening, there was some tendency to overestimate the severity of seizures in the historically reported interval. This was examined by comparing the initial study visits improvement versus the pattern of control over time, and was assessed using graphic techniques and summary statistics.
Measured: For 1 Year following Enrollment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Mar 2016 (estimated)
- Study startApr 2015
- Primary completion27 Feb 2019
- Study completion27 Feb 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for EpilepsyStudies of the same condition, open and under way.
- More trials run by University of Alabama at BirminghamThe 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 1
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 89 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Alabama at Birmingham
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Martina Bebin, University of Alabama at Birmingham
- Investigators
- Martina Bebin, MD, Principal investigator, Neurology Chair Office - University of Alabama at Birmingham
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02695537
- Sponsor's protocol ID
- IRB-140905010
- Status last verified
- Mar 2020
- First submitted
- 24 Feb 2016
- Last updated
- 10 Apr 2020
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Duncan JS, Sander JW. The Chalfont Seizure Severity Scale. J Neurol Neurosurg Psychiatry. 1991 Oct;54(10):873-6. doi: 10.1136/jnnp.54.10.873.
PubMed 1744641Pinheiro, J.C. and Bates, D.M. (2000). Mixed-Effects Models in S and S-Plus. Springer, Verlag, New York
Szaflarski JP, Hernando K, Bebin EM, Gaston TE, Grayson LE, Ampah SB, Moreadith R. Higher cannabidiol plasma levels are associated with better seizure response following treatment with a pharmaceutical grade cannabidiol. Epilepsy Behav. 2019 Jun;95:131-136. doi: 10.1016/j.yebeh.2019.03.042. Epub 2019 Apr 29.
PubMed 31048098Warren PP, Bebin EM, Nabors LB, Szaflarski JP. The use of cannabidiol for seizure management in patients with brain tumor-related epilepsy. Neurocase. 2017 Oct-Dec;23(5-6):287-291. doi: 10.1080/13554794.2017.1391294. Epub 2017 Oct 24.
PubMed 29063814
Study at a glance
From the registry record, last updated by the sponsor on 10 Apr 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- University of Alabama at Birmingham (UAB) Pediatric CBD Program
- ClinicalTrials.gov ID
- NCT02695537
- Acronym / sponsor ID
- IRB-140905010
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 89 participants (actual)
- Lead sponsor
- University of Alabama at BirminghamUniversity, hospital or other
- Study start
- Apr 2015 (actual)
- Primary completion
- 27 Feb 2019 (actual)
- Study completion
- 27 Feb 2019 (actual)
- First posted
- 1 Mar 2016 (estimated)
- Results
- Posted 10 Apr 2020
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to evaluate the safety and tolerability of Epidiolex at various doses between 5 mg/kg/day and 50 mg/kg/day as an additional (add-on) drug for treating debilitating, drug-resistant epilepsy.
Detailed description
The specific goals of this phase I dose finding study, conducted in consecutively enrolled patients 1-19 years of age, are to prospectively and longitudinally assess the safety and tolerability, including cognitive effects, of Cannabidiol (CBD) at various doses between 5 mg/kg/day and 25 mg/kg/day, with additional titration in some cases up to 50 mg/kg/day. In order to participate in the study, participants will need to fulfill the inclusion and exclusion criteria.
The goal of the study is to fulfill the mandate of "Carly's Law" and to provide patients with debilitating epileptic conditions with access to CBD as an add-on treatment. Other care including routine neurological care unrelated to participation in the CBD study will need to be provided by patients' primary/current treating neurologist.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Epidiolex 100 milligram/milliliter (mg/mL) oral solution | Experimental | Drug: EpidiolexParticipants will receive a CBD starting dose of 5 mg/kg/day in twice daily dosing and titrate by 5 mg/kg/2 weeks up to 25 mg/kg/day. Additional increases in dosing, by 5 mg/kg/day up to a maximum of 50 mg/kg/day, may be instituted at the discretion of the treating Principle Investigator (PI). If a subject experiences a "clinically significant" or "dose limiting" adverse event (AE) or severe adverse event (SAE) attributable to CBD, the investigator will determine if a dose reduction or taper is necessary (decreases will occur in 5 mg/kg/2 week increments or at a rate felt appropriate by the treating PI). |
Who may qualify
- Ages
- 1 year to 19 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (24 listed)
- Patients between 1 years (12 months)-18 years with drug resistant epilepsy confirmed by video EEG recording report, and
- Patient should have history of a trial of at least four anti-epileptic drugs (AEDs), including one trial of a combination of two concomitant drugs without successful seizure control. Vagal nerve stimulation (VNS), Responsive Neurostimulation (RNS) deep brain stimulation, or the ketogenic diet can be considered equivalent to a drug trial. Patient suffering from an epileptic syndrome that is known to be refractory to treatment, such as Dravet or Lennox-Gastaut Syndrome, may be included after a trial of only two drugs, and
- Between 1-4 baseline anti-epileptic drugs at stable doses for a minimum of 4 weeks prior to submitting records for review by the CBD Treatment Approval Committee.
- VNS or RNS must be on stable settings for a minimum of 3 months.
- If on ketogenic diet, must be on stable ration for a minimum of 3 months.
Key exclusion criteria (15 listed)
- Active Psychogenic non-epileptic seizures (PNES); Patients with more than 1 year freedom from PNES will not be excluded,
- Patients who are pregnant, breastfeeding, or not using acceptable methods of contraception during the course of the study and for three months thereafter,
- Male patient's partner is of child bearing potential; unless willing to ensure that they (male patients) or their partner(s) are using acceptable methods of contraception during the course of the study and for three months thereafter
- History of substance abuse/addiction,
- Use of medical marijuana or CBD based product in the past 30 days,
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 |
|---|---|---|
| EpidiolexAlso: Cannabidiol, CBDEpidiolex oral solution (100 mg/mL CBD concentration) with inactive ingredients including anhydrous ethanol, sesame seed oil, strawberry flavor, and sucralose). | Drug | Epidiolex 100 milligram/milliliter (mg/mL) oral solution |
Primary outcome
Number of Participants With Severe Adverse Events (Increase in Seizure Frequency by More Than 100% Leading to Emergency Room Visit or Hospitalization).
Time frame: For 1 Year following Enrollment
Severe adverse events (SAEs) were defined as increase in seizure frequency by more than 100% leading to emergency room visit or hospitalization. During study clinic and phone visits, adverse and severe adverse event monitoring and reporting were assessed among all participants. Data was recorded and stored in the UAB RedCap System.
Number of Participants With Change in Resting Blood Pressure or Heart Rate by 25% if Considered Significant by Managing Neurologist.
Time frame: For 1 Year following Enrollment
During study clinic visits, participant vital signs, including blood pressure and heart rate, were collected. Data was recorded and stored in the UAB RedCap System. Clinically significant was determined by using the Common Toxicity Criteria for Adverse Events (CTCAE) Version 4.03. Adverse events categorized as a grade 3 or above were considered clinically significant. Adverse events grade 4 or above were considered severe adverse events.
Number of Participants With Change in Laboratory Tests Considered by Managing Neurologists as Clinically Significant.
Time frame: For 1 Year following Enrollment
During study clinic visits, participants received laboratory testing to assess for side effects and toxicity. Data was recorded and stored in the UAB RedCap System. Laboratory testing included Complete Blood Count (CBC), Comprehensive Metabolic Panel (CMP; included Liver Function Tests (LFTs) mainly looking at alanine aminotransferase (ALT) and aspartate aminotransferase (AST)), Urine Analysis (UA), and Antiepileptic Drug (AED) levels. Clinically significant was determined by using the Common Toxicity Criteria for Adverse Events (CTCAE) Version 4.03. Adverse events categorized as a grade 3 or above were considered clinically significant. Adverse events grade 4 or above were considered severe adverse events.
2 secondary outcomes
Change in Seizure Frequency as Measured in Total Number of Seizures Per Month.
Time frame: For 1 Year following Enrollment
Change in Seizure Severity Measured by the Chalfont Seizure Severity Scale (Duncan & Sander, 1991, JNNP).
Time frame: For 1 Year following Enrollment
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Apr 2020.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 1744641Duncan JS, Sander JW. The Chalfont Seizure Severity Scale. J Neurol Neurosurg Psychiatry. 1991 Oct;54(10):873-6. doi: 10.1136/jnnp.54.10.873.
- BackgroundPinheiro, J.C. and Bates, D.M. (2000). Mixed-Effects Models in S and S-Plus. Springer, Verlag, New York
- Derived from this study: PubMed 31048098Szaflarski JP, Hernando K, Bebin EM, Gaston TE, Grayson LE, Ampah SB, Moreadith R. Higher cannabidiol plasma levels are associated with better seizure response following treatment with a pharmaceutical grade cannabidiol. Epilepsy Behav. 2019 Jun;95:131-136. doi: 10.1016/j.yebeh.2019.03.042. Epub 2019 Apr 29.
- Derived from this study: PubMed 29063814Warren PP, Bebin EM, Nabors LB, Szaflarski JP. The use of cannabidiol for seizure management in patients with brain tumor-related epilepsy. Neurocase. 2017 Oct-Dec;23(5-6):287-291. doi: 10.1080/13554794.2017.1391294. Epub 2017 Oct 24.
- UAB Cannabidiol ProgramLink provided by the sponsor.
- 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.
Martina Bebin, MD principal investigator
Neurology Chair Office - University of Alabama at Birmingham
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Epidiolex in people with Epilepsy and Seizures, run by University of Alabama at Birmingham at 1 site in United States.
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 24 inclusion and 15 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: finished, as of the sponsor's last update on 10 Apr 2020. 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 United States. 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.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 10 Apr 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Number of Participants With Severe Adverse Events (Increase in Seizure Frequency by More Than 100% Leading to Emergency Room Visit or Hospitalization). (time frame: For 1 Year following Enrollment). The study lists 3 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 NCT02695537, which also lists 4 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 10 Apr 2020.