Hematologic DisorderPhase 2NCT01924169
Lenalidomide as Immune Adjuvant in Patient's With Chronic Lymphocytic Leukemia (CLL)
A Phase 2 study testing Lenalidomide, Influenza Vaccine and Pneumovax Vaccine in people with Hematologic Disorder, run by M.D. Anderson Cancer Center at 1 site in United States.
Trial summary
The goal of this clinical research study is to learn if lenalidomide can increase the level of immunoglobulins (parts of the blood that may help to improve the immune system's function) and/or will improve the protective effect of the flu and pneumonia vaccines in patients with CLL. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Hematologic Disorder
- What is being tested?
- Lenalidomide, Influenza Vaccine and Pneumovax Vaccine
- Type of treatment
- Vaccines, Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 3 participants
- Where
- 1 siteUnited States
- Study dates
- 24 Nov 2014to 21 Feb 2017
- Phase
- Phase 2
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Chronic lymphocytic leukemia (CLL) patients with IgG less than 500 mg/dl with/without symptoms who are either untreated or previously treated, regardless of response, at least 6 months from prior therapy (including mAb)..
- Eastern Cooperative Oncology Group (ECOG)/World Health Organization (WHO) performance status of 0-2.
- Adequate renal functions as indicated by serum creatinine equal to or less than 2 mg/dl.
- Adequate hepatic function indicated as total bilirubin equal to or less than 2 mg/dl and alanine aminotransferase (ALT) equal to or less than two times the upper limit of normal.
- Disease free of prior malignancies for 3 years with exception of currently treated basal cell, squamous cell carcinoma of the skin, or carcinoma "in situ" of the cervix or breast. Patients with malignancies with indolent behavior such as prostate cancer treated with radiation or surgery can be enrolled in the study as long as they have a reasonable expectation to have been cured with the treatment modality received.
- Females of childbearing potential (FCBP). A female of childbearing potential is a sexually mature woman who: 1) has not undergone a hysterectomy or bilateral oophorectomy; or 2) has not been naturally postmenopausal for at least 24 consecutive months (i.e., has not had menses at any time in preceding 24 consecutive months)>
Show all 12Show fewer
- FCBP must have a negative serum or urine pregnancy test with a sensitivity of at least 50 mlU/mL within 10-14 days prior to and again within 24 hours of starting lenalidomide from heterosexual intercourse or begin two acceptable methods of birth control, one highly effective method and one additional effective method at the same time, at least 28 days before she starts taking lenalidomide.
- FCBP must also agree to ongoing pregnancy testing (weekly for the first four weeks and then every 28 days while on therapy and at discontinuation of treatment).
- Men must agree to use a latex condom during sexual contact with a FCBP even if they have had a successful vasectomy. All patients must be counseled at a minimum of every 28 days about pregnancy precautions and risks of fetal exposure.
- Patients must be 18 years of age or older.
- All study participants must be registered into the mandatory Revlimid REMS® program, and be willing and able to comply with the requirements of the REMS® program.
- Females of reproductive potential must adhere to the scheduled pregnancy testing as required in the Revlimid REMS® program. Able to take aspirin (81 or 325 mg) daily as prophylactic anticoagulation (patients intolerant to ASA may use warfarin or low molecular weight heparin).
Who cannot join
- Known sensitivity to lenalidomide or other thalidomide derivatives.
- History of Guillain-Barre within 6 weeks of previous influenza vaccination.
- Patient on steroid therapy.
- Documented prolymphocytic leukemia (prolymphocytes more than 55% in the blood) or Richter's transformation.
- Known positivity for HIV or active hepatitis B or C.
- Pregnant or breast feeding females.
Show all 14Show fewer
- History of tuberculosis treated within the last five years or recent exposure to tuberculosis.
- Any serious medical condition, laboratory abnormality or psychiatric illness that places the subject at unacceptable risk if he/she were to participate in the study.
- Patients with a recent history of deep vein thrombosis (DVT) or pulmonary embolus (PE), in six months prior to enrollment are not eligible for this study.
- Subjects who have currently active hepatic or biliary disease (with the exception of patients with Gilbert's syndrome).
- Patients with severe allergic reaction (e.g., anaphylaxis) after previous dose of any influenza vaccine or to a vaccine component, including egg protein.
- Moderate or severe acute illness with or without fever.
- Use of any other experimental drug or therapy within 28 days of baseline.
- Concurrent use of other anti-cancer agents or treatments.
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Texas MD Anderson Cancer Center
Houston, Texas, 77030
About this study
Official title: A Study of Immune-adjuvant Effect of Lenalidomide in Patients With Chronic Lymphocytic Leukemia and Hypogammaglobulinemia and Impaired Response to Vaccinations - RV-CL-CLL-PI-002544
The goal of this clinical research study is to learn if lenalidomide can increase the level of immunoglobulins (parts of the blood that may help to improve the immune system's function) and/or will improve the protective effect of the flu and pneumonia vaccines in patients with CLL.
Read the detailed description
Study Drug Administration:
If you are found to be eligible to take part in this study, you will take lenalidomide by mouth on Monday, Wednesday and Friday for 3 months.
In order to participate in this study you must register into and follow the requirements of the Revlimid REMS™ program of Celgene Corporation. This program provides education and counseling on the risks of fetal exposure, blood clots and reduced blood counts. You will be required to receive counseling every 28 days during treatment with lenalidomide, follow the pregnancy testing and birth control requirements of the program that are appropriate for you and take telephone surveys regarding your compliance with the program.
Depending on how you respond to the drug, after 3 months, you will either:
°Take lenalidomide every Monday, Wednesday and Friday on a 3 months on/3 months off schedule. You will then repeat this process for up to 2 years.
or
°Take lenalidomide every day for an extra 3 months. If you respond well, you will take lenalidomide every day for 3 months, then for the next 3 months stop the drug. You will then repeat this process for up to 2 years.
You should swallow the lenalidomide capsules whole with water. Do not open, crush, or break the lenalidomide capsules. If you touch a broken lenalidomide capsule, wash the area of your body with soap and water.
If you miss a dose of lenalidomide, and it has been less than 12 hours since your regular dose time, take it as soon as you remember. If it has been more than 12 hours, just skip your missed dose. Do not take 2 doses at the same time. If you take too much lenalidomide or overdose, call your healthcare provider right away. If you vomit after any dose, do not take another dose.
You will also receive a vaccine for the flu (Trivalent or Fluzone) 1 time a year. If you have not received one in the last 5 years, you will receive a vaccine for pneumonia (Pneumovax) between months 6 and 21. You will receive these vaccines as an injection under the skin.
Study Visits:
Before the first dose of study drug:
°Blood (about 2 teaspoons) will be drawn to test cytokines (proteins that may affect the immune system) and to test your immune system.
If you are able to become pregnant, 1 time a week for the first 4 weeks and then every 28 days while on treatment, you will have a blood (about 1 teaspoon) or urine pregnancy test.
While you are taking lenalidomide, blood (about 1 teaspoon) will be drawn for routine tests every 2-4 weeks.
At 3 months (+/- 3 weeks):
- You will have a physical exam.
- Blood (about 1 teaspoon) will be drawn for routine tests.
Before the flu vaccine, blood (about 1 teaspoons) will be drawn for antibody testing. Antibodies are created by the immune system and may attack foreign cells or substances, such as the study drug.
At 4 weeks (+/- 2 weeks) and 3 months (+/- 3 weeks) after the vaccine, blood (about 2 teaspoons) will be drawn for antibody testing, cytokine testing, and to test your immune system.
Length of Study:
You will take the study drug for up to 2 years. You will no longer be able to take the study drug if the disease gets worse, if intolerable side effects occur, or if you are unable to follow study directions.
Your participation on the study will be over after the follow-up visits.
End of Study:
°Blood (about 2 teaspoons) will be drawn for antibody testing and cytokine testing.
This is an investigational study. Lenalidomide is FDA approved and commercially available for the treatment of multiple myeloma, myelodysplastic syndrome and mantle cell lymphoma. The use of this to help prevent infections by improving immunoglobulin levels and its use in combination with the flu and pneumonia vaccine is investigational.
Up to 35 patients will take part in this study. All will be enrolled at MD Anderson.
- Conditions
- Hematologic Disorder
- Being tested
- Lenalidomide, Influenza Vaccine, Pneumovax Vaccine
- Keywords
- Hematologic Disorder, Chronic Lymphocytic Leukemia, CLL, Hypogammaglobulinemia, Impaired Response to Vaccinations, Immunoglobulins, Immune system's function, Lenalidomide, CC-5013, Revlimid, Flu vaccine, TIV, Pneumonia vaccine
- Medical subject headings
- Hematologic Diseases, Leukemia, Lymphocytic, Chronic, B-Cell, Agammaglobulinemia, Influenza, Human
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
LenalidomideDrug
Also called CC-5013, Revlimid
5 mg/day by mouth on Monday, Wednesday and Friday for 3 months. Process repeated for up to 2 years.
If IgG levels do not improve, frequency of lenalidomide increased to 5 mg/day by mouth for additional 3 months and if response is achieved, lenalidomide continued at 5mg/day 3 month on/3 month off for a total of 2 years.
Influenza VaccineBiological
Also called TIV
Administered as injection yearly, during the fall/winter season.
Pneumovax VaccineBiological
Also called Pneumonia vaccine
Administered by injection once between month 6 and month 21. Patients, who have received the Pneumovax vaccine within last 5 years, will not receive Pneumovax vaccination.
| Study group | Role | What they receive |
|---|---|---|
| Lenalidomide | Experimental | Lenalidomide administered at the dose of 5 mg/day on Monday, Wednesday and Friday for 3 months. If Immunoglobulin G (IgG) levels improve by at least 25% of baseline, lenalidomide administration continued for 3 months on, and 3 months off for 2 years. If IgG levels do not improve, frequency of lenalidomide increased to 5 mg/day for additional 3 months and if response is achieved, lenalidomide continued at 5mg/day 3 month on/3 month off for a total of 2 years. Seasonal influenza vaccination (Trivalent Influenza Vaccine, Fluzone High Dose) administered yearly, during the fall/winter season and pneumococcal immunization (Pneumococcal Polysaccharide Vaccine, Pneumovax) administered once between month 6 and month 21. Receives: Drug: Lenalidomide; Biological: Influenza Vaccine; Biological: Pneumovax Vaccine |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With IgG Response
IgG response defined as having improvement in IgG level by at least 25% at 6 months, compared to baseline.
Measured: 6 months
Secondary outcomes (1)
Seroconversion Response
Study considered positive in regard to the secondary endpoints if seroconversion is observed in 60% or more of the subjects for at least one of the vaccinations given.
Measured: 4 weeks after flu vaccine administered
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Aug 2013 (estimated)
- Study start24 Nov 2014
- Primary completion21 Feb 2017
- Study completion21 Feb 2017
Why it stopped: Slow Accrual
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.
- Other trials for Hematologic DisorderStudies of the same condition, open and under way.
- More trials run by M.D. Anderson Cancer CenterThe 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 2
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 3 participants (actual)
Sponsor and investigators
- Lead sponsor
- M.D. Anderson Cancer Center
- Sponsor type
- University, hospital or other
- Collaborators
- Celgene Corporation
- Responsible party
- Sponsor
- Investigators
- Alessandra Ferrajoli, MD,BS, Principal investigator, M.D. Anderson Cancer Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01924169
- Sponsor's protocol ID
- 2013-0371
- Other IDs
- NCI-2014-01058
- Status last verified
- Aug 2018
- First submitted
- 13 Aug 2013
- Last updated
- 20 Sep 2018
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 20 Sep 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Study of Immune-adjuvant Effect of Lenalidomide in Patients With Chronic Lymphocytic Leukemia and Hypogammaglobulinemia and Impaired Response to Vaccinations - RV-CL-CLL-PI-002544
- ClinicalTrials.gov ID
- NCT01924169
- Acronym / sponsor ID
- 2013-0371
- Conditions
- Hematologic Disorder
- Keywords
- Hematologic Disorder, Chronic Lymphocytic Leukemia, CLL, Hypogammaglobulinemia, Impaired Response to Vaccinations, Immunoglobulins, Immune system's function, Lenalidomide
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: Slow Accrual
- Enrolment
- 3 participants (actual)
- Lead sponsor
- M.D. Anderson Cancer CenterUniversity, hospital or other
- Collaborators
- Celgene Corporation
- Study start
- 24 Nov 2014 (actual)
- Primary completion
- 21 Feb 2017 (actual)
- Study completion
- 21 Feb 2017 (actual)
- First posted
- 16 Aug 2013 (estimated)
- Results
- Posted 27 Mar 2018
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this clinical research study is to learn if lenalidomide can increase the level of immunoglobulins (parts of the blood that may help to improve the immune system's function) and/or will improve the protective effect of the flu and pneumonia vaccines in patients with CLL.
Detailed description
Study Drug Administration:
If you are found to be eligible to take part in this study, you will take lenalidomide by mouth on Monday, Wednesday and Friday for 3 months.
In order to participate in this study you must register into and follow the requirements of the Revlimid REMS™ program of Celgene Corporation. This program provides education and counseling on the risks of fetal exposure, blood clots and reduced blood counts. You will be required to receive counseling every 28 days during treatment with lenalidomide, follow the pregnancy testing and birth control requirements of the program that are appropriate for you and take telephone surveys regarding your compliance with the program.
Depending on how you respond to the drug, after 3 months, you will either:
°Take lenalidomide every Monday, Wednesday and Friday on a 3 months on/3 months off schedule. You will then repeat this process for up to 2 years.
or
°Take lenalidomide every day for an extra 3 months. If you respond well, you will take lenalidomide every day for 3 months, then for the next 3 months stop the drug. You will then repeat this process for up to 2 years.
You should swallow the lenalidomide capsules whole with water. Do not open, crush, or break the lenalidomide capsules. If you touch a broken lenalidomide capsule, wash the area of your body with soap and water.
If you miss a dose of lenalidomide, and it has been less than 12 hours since your regular dose time, take it as soon as you remember. If it has been more than 12 hours, just skip your missed dose. Do not take 2 doses at the same time. If you take too much lenalidomide or overdose, call your healthcare provider right away. If you vomit after any dose, do not take another dose.
You will also receive a vaccine for the flu (Trivalent or Fluzone) 1 time a year. If you have not received one in the last 5 years, you will receive a vaccine for pneumonia (Pneumovax) between months 6 and 21. You will receive these vaccines as an injection under the skin.
Study Visits:
Before the first dose of study drug:
°Blood (about 2 teaspoons) will be drawn to test cytokines (proteins that may affect the immune system) and to test your immune system.
If you are able to become pregnant, 1 time a week for the first 4 weeks and then every 28 days while on treatment, you will have a blood (about 1 teaspoon) or urine pregnancy test.
While you are taking lenalidomide, blood (about 1 teaspoon) will be drawn for routine tests every 2-4 weeks.
At 3 months (+/- 3 weeks):
- You will have a physical exam.
- Blood (about 1 teaspoon) will be drawn for routine tests.
Before the flu vaccine, blood (about 1 teaspoons) will be drawn for antibody testing. Antibodies are created by the immune system and may attack foreign cells or substances, such as the study drug.
At 4 weeks (+/- 2 weeks) and 3 months (+/- 3 weeks) after the vaccine, blood (about 2 teaspoons) will be drawn for antibody testing, cytokine testing, and to test your immune system.
Length of Study:
You will take the study drug for up to 2 years. You will no longer be able to take the study drug if the disease gets worse, if intolerable side effects occur, or if you are unable to follow study directions.
Your participation on the study will be over after the follow-up visits.
End of Study:
°Blood (about 2 teaspoons) will be drawn for antibody testing and cytokine testing.
This is an investigational study. Lenalidomide is FDA approved and commercially available for the treatment of multiple myeloma, myelodysplastic syndrome and mantle cell lymphoma. The use of this to help prevent infections by improving immunoglobulin levels and its use in combination with the flu and pneumonia vaccine is investigational.
Up to 35 patients will take part in this study. All will be enrolled at MD Anderson.
Study design
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Lenalidomide | Experimental | Drug: Lenalidomide, Biological: Influenza Vaccine, Biological: Pneumovax VaccineLenalidomide administered at the dose of 5 mg/day on Monday, Wednesday and Friday for 3 months. If Immunoglobulin G (IgG) levels improve by at least 25% of baseline, lenalidomide administration continued for 3 months on, and 3 months off for 2 years. If IgG levels do not improve, frequency of lenalidomide increased to 5 mg/day for additional 3 months and if response is achieved, lenalidomide continued at 5mg/day 3 month on/3 month off for a total of 2 years. Seasonal influenza vaccination (Trivalent Influenza Vaccine, Fluzone High Dose) administered yearly, during the fall/winter season and pneumococcal immunization (Pneumococcal Polysaccharide Vaccine, Pneumovax) administered once between month 6 and month 21. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (12 listed)
- Chronic lymphocytic leukemia (CLL) patients with IgG less than 500 mg/dl with/without symptoms who are either untreated or previously treated, regardless of response, at least 6 months from prior therapy (including mAb)..
- Eastern Cooperative Oncology Group (ECOG)/World Health Organization (WHO) performance status of 0-2.
- Adequate renal functions as indicated by serum creatinine equal to or less than 2 mg/dl.
- Adequate hepatic function indicated as total bilirubin equal to or less than 2 mg/dl and alanine aminotransferase (ALT) equal to or less than two times the upper limit of normal.
- Disease free of prior malignancies for 3 years with exception of currently treated basal cell, squamous cell carcinoma of the skin, or carcinoma "in situ" of the cervix or breast. Patients with malignancies with indolent behavior such as prostate cancer treated with radiation or surgery can be enrolled in the study as long as they have a reasonable expectation to have been cured with the treatment modality received.
Key exclusion criteria (14 listed)
- Known sensitivity to lenalidomide or other thalidomide derivatives.
- History of Guillain-Barre within 6 weeks of previous influenza vaccination.
- Patient on steroid therapy.
- Documented prolymphocytic leukemia (prolymphocytes more than 55% in the blood) or Richter's transformation.
- Known positivity for HIV or active hepatitis B or C.
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 |
|---|---|---|
| LenalidomideAlso: CC-5013, Revlimid5 mg/day by mouth on Monday, Wednesday and Friday for 3 months. Process repeated for up to 2 years. If IgG levels do not improve, frequency of lenalidomide increased to 5 mg/day by mouth for additional 3 months and if response is achieved, lenalidomide continued at 5mg/day 3 month on/3 month off for a total of 2 years. | Drug | Lenalidomide |
| Influenza VaccineAlso: TIVAdministered as injection yearly, during the fall/winter season. | Biological | Lenalidomide |
| Pneumovax VaccineAlso: Pneumonia vaccineAdministered by injection once between month 6 and month 21. Patients, who have received the Pneumovax vaccine within last 5 years, will not receive Pneumovax vaccination. | Biological | Lenalidomide |
Primary outcome
Number of Participants With IgG Response
Time frame: 6 months
IgG response defined as having improvement in IgG level by at least 25% at 6 months, compared to baseline.
1 secondary outcome
Seroconversion Response
Time frame: 4 weeks after flu vaccine administered
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Sep 2018.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- University of Texas MD Anderson Cancer Center WebsiteLink provided by the sponsor.
Related trials for Hematologic Disorder
RecruitingPhase 2
Tafasitamab With Acalabrutinib and Venetoclax for the Treatment of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma
Chronic Lymphocytic Leukemia, Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma
Not yet recruitingPhase 2
Study of YKST02 in Adults With Relapsed or Refractory Multiple Myeloma
Relapsed or Refractory Multiple Myeloma (RRMM)
RecruitingPhase 2
Engaging T-cells to Eliminate MRD in Newly Diagnosed Myeloma Optimizing Response With Talquetmab and Teclistamab (ROTATE)
Multiple Myeloma
Active, not recruitingPhase 3
A Phase III Study of Eque-cel in Subjects With Len-refractory RRMM (FUMANBA-03)
Multiple Myeloma
RecruitingObservational study
A Study in Children and, Adults With Congenital Thrombotic Thrombocytopenic Purpura (cTTP) Treated With Adzynma
Thrombotic Thrombocytopenic Purpura (TTP)
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.
Alessandra Ferrajoli, MD,BS principal investigator
M.D. Anderson Cancer Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Lenalidomide, Influenza Vaccine and Pneumovax Vaccine in people with Hematologic Disorder, run by M.D. Anderson Cancer Center 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 12 inclusion and 14 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 20 Sep 2018. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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 27 Mar 2018). 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 IgG Response (time frame: 6 months). 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 20 Sep 2018.