Monoclonal B-Cell LymphocytosisPhase 2NCT02309515
Lenalidomide in Improving Immune Response to Vaccine Therapy in Patients With Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma, or Monoclonal B Cell Lymphocytosis
A Phase 2 study testing Laboratory Biomarker Analysis, Lenalidomide and Pneumococcal 13-valent Conjugate Vaccine in people with Monoclonal B-Cell Lymphocytosis and Stage 0 Chronic Lymphocytic Leukemia, run by Mayo Clinic at 3 sites in United States.
Trial summary
This randomized phase II trial studies how well lenalidomide improves immune response to pneumococcal 13-valent conjugate vaccine in patients with chronic lymphocytic leukemia, small lymphocytic lymphoma, or monoclonal B cell lymphocytosis. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Monoclonal B-Cell Lymphocytosis, Stage 0 Chronic Lymphocytic Leukemia, Stage I Chronic Lymphocytic Leukemia
- What is being tested?
- Laboratory Biomarker Analysis, Lenalidomide and Pneumococcal 13-valent Conjugate Vaccine
- Type of treatment
- Vaccines
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 12 participants
- Where
- 3 sitesUnited States
- Study dates
- 11 Jun 2015to 21 Jul 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
- Diagnosis of:
- CLL according to the National Cancer Institute (NCI) criteria
- Small lymphocytic lymphoma (SLL) according to the World Health Organization (WHO) criteria
- MBL according to the consensus criteria
- This includes previous documentation of:
- Biopsy-proven small lymphocytic lymphoma or
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- Diagnosis of CLL or MBL as evidenced by all of the following:
- Clonal B-cell population in the peripheral blood with immunophenotyping consistent with CLL defined as:
- The population of lymphocytes share both B-cell antigens (cluster of differentiation [CD]19, CD20 [typically dim expression], or CD23) as well as CD5 in the absence of other pan-T-cell markers (CD3, CD2, etc)
- Clonality as evidenced by k (kappa) or lambda light chain expression (typically dim immunoglobulin expression) or other genetic method (e.g. immunoglobulin heavy chain variable [IGHV] analysis) NOTE: splenomegaly, hepatomegaly, or lymphadenopathy are not required for the diagnosis of CLL
- Patients with a peripheral blood B-cell lymphocyte count of < 5 x 10^9/L and no evidence of lymphadenopathy or organomegaly will be classified as MBL; patients with a peripheral blood B-cell lymphocyte count of < 5 x 10^9/L who have evidence of lymphadenopathy will be classified as SLL; patients with a peripheral blood B-cell lymphocyte count >= 5 x 10^9/L will be considered to have CLL
- Before diagnosing MBL, CLL or SLL, mantle cell lymphoma must be excluded by demonstrating a negative fluorescence in situ hybridization (FISH) analysis for t(11;14)(IgH/cyclin D 1 [CCND1]) on peripheral blood or tissue biopsy or negative immunohistochemical stains for cyclin D1 on involved tissue biopsy
- CLL or SLL patients only (does not apply to MBL patients): Rai stage 0-1 (both CLL and SLL patients can be staged using the Rai system)
- Patients must not previously have received the Prevnar 13 pneumococcal vaccination; NOTE: previous vaccination with Pneumovax (PCV23) is permitted but must have been at least 365 days prior to registration
- Patients must be previously untreated and must NOT have any of the following indications for chemotherapy:
- Evidence of progressive marrow failure as manifested by the development of or worsening anemia (=< 11 g/dL) and/or thrombocytopenia (=< 100 x 10^9/L) not due to autoimmune disease
- Symptomatic or progressive lymphadenopathy, splenomegaly or hepatomegaly
- One or more of the following disease-related symptoms:
- Weight loss >= 10% within the previous 6 months
- Extreme fatigue attributed to CLL
- Fevers > 100.4 degree Fahrenheit (o^F) for 2 weeks without evidence of infection
- Drenching night sweats without evidence of infection Note: 1) Prior chemotherapy or monoclonal antibody based therapy for treatment of CLL or SLL will be considered prior therapy; nutraceutical treatments with no established benefit in CLL (such as epigallocatechin gallate or EGCG, found in green tea or other herbal treatments) will not be considered "prior treatment" 2) Prior corticosteroid therapy for an indication other than CLL/SLL will not be considered "prior treatment"; previous use of corticosteroids for treatment of autoimmune complications of CLL/SLL does not constitute prior therapy for CLL/SLL
- Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0 or 1
- Absolute neutrophil count (ANC) >= 1000/mm^3
- Platelet count >= 100,000/mm^3
- Hemoglobin >= 11.0 g/dL
- Total bilirubin =< 1.5 x upper limit of normal (ULN) unless due to Gilbert's disease; if total bilirubin is > 1.5 x ULN, a direct bilirubin should be performed and must be < 1.5 mg/dL for Gilbert's to be diagnosed
- Aspartate transaminase (AST) =< 3 x ULN
- Calculated creatinine clearance must be >= 50 ml/min using the Cockcroft-Gault formula
- Provide informed written consent
- Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)
- All study participants must be willing to be registered into the mandatory Revlimid Risk Evaluation and Mitigation Strategy (REMS)® program, and be willing and able to comply with the requirements of the REMS® program; NOTE: Actual registration in the Revlimid REMS® program may occur after the patient is randomized since this requirement only applies to patients randomized to Arm A
- Females of reproductive potential must be willing to adhere to the scheduled pregnancy testing as required in the Revlimid REMS® program; NOTE: This requirement only applies to patients randomized to Arm A
- Able to take aspirin (81 or 325 mg) daily as prophylactic anticoagulation (patients intolerant to acetylsalicylic acid [ASA] may use warfarin or low molecular weight heparin)
- Willing to provide blood samples for correlative research purposes
Who cannot join
- Palpable lymph nodes > 3 cm in maximal dimension
- Any of the following:
- Pregnant women
- Nursing women
- Men or women of childbearing potential who are unwilling to employ adequate contraception
- Any of the following comorbid conditions:
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- New York Heart Association classification III or IV cardiovascular disease
- Recent myocardial infarction (=< 30 days)
- Uncontrolled infection
- Immunocompromised patients and patients known to be human immunodeficiency virus (HIV) positive and currently receiving antiretroviral therapy; NOTE: patients known to be HIV positive, but without clinical evidence of an immunocompromised state, are eligible for this trial
- Other active primary malignancy requiring treatment or limiting survival to =< 2 years prior to registration
- Any radiation therapy =< 28 days prior to registration
- Any major surgery =< 28 days prior to registration
- Current use of corticosteroids; EXCEPTION: low doses of steroids (=< 10 mg of prednisone or equivalent dose of other steroid) used for treatment of nonhematologic medical conditions; NOTE: previous use of corticosteroids is allowed
- Active hemolytic anemia requiring immunosuppressive therapy or other pharmacologic treatment; NOTE: patients who have a positive Coombs test but no evidence of hemolysis are NOT excluded from participation
- History of deep venous thromboses or pulmonary embolism =< 365 days prior to registration
- Co-existent diffuse large B-cell lymphoma (Richter's transformation)
Trial locations and contacts
3 sites in 1 country.
United States3 sites
Mayo Clinic in Florida
Jacksonville, Florida, 32224-9980
Mayo Clinic
Rochester, Minnesota, 55905
Mayo Clinic in Arizona
Scottsdale, Arizona, 85259
About this study
Official title: Impact of Short Term Lenalidomide on Immune Response to Prevnar 13® in Individuals With Chronic Lymphocytic Leukemia (CLL), Small Lymphocytic Leukemia (SLL), and Monoclonal B Cell Lymphocytosis (MBL)
This randomized phase II trial studies how well lenalidomide improves immune response to pneumococcal 13-valent conjugate vaccine in patients with chronic lymphocytic leukemia, small lymphocytic lymphoma, or monoclonal B cell lymphocytosis. Biological therapies, such as lenalidomide, use substances made from living organisms that may stimulate or suppress the immune system in different ways and stop cancer cells from growing. Lenalidomide may also improve the effectiveness of pneumococcal 13-valent conjugate vaccine that is used to prevent infection.
Read the detailed description
PRIMARY OBJECTIVES:
- To assess the ability of a 6 week course of low dose lenalidomide to improve the proportion of patients with monoclonal B cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL) who develop an immune response to pneumococcal vaccination as measured by the proportion of patients with >= 4-fold rise from pre-vaccine (day 15) for >= 2 of the 3 serotypes measured at 28 days post-vaccination by opsonophagocytic activity (OPA) of antibodies from sera.
SECONDARY OBJECTIVES:
- Evaluate disease status by physical exam and complete blood counts in patients participating in each arm of the study at the time of the 6 week assessment of immune response.
II. Evaluate time to treatment for progressive CLL for patients on each study arm.
III. Evaluate the adverse events profile in each study arm.
TERTIARY OBJECTIVES:
- To assess the immune response to pneumococcal vaccination as measured by fold-change from pre-vaccine (day 15) to 28 days post-vaccination in OPA geometric mean titers (GMT) of antibodies from sera.
II. To assess the immune response to pneumococcal vaccination as measured by fold-change from pre-vaccine (day 15) to 28 days post-vaccination in quantitative Streptococcus pneumoniae immunoglobulin G (IgG) GMT of antibodies from sera.
III. Evaluate the effect of 6 weeks of low dose lenalidomide on global immune function including T-cell repertoire, T-cell immune synapse, serum immunoglobulin levels, and absolute numbers of T-cell and natural killer (NK) cells.
OUTLINE: Patients are randomized 1 of 2 treatment arms.
ARM I: Patients receive lenalidomide orally (PO) once daily (QD) on days 1-42 and pneumococcal 13-valent conjugate vaccine intramuscularly (IM) on day 15.
ARM II: Patients receive pneumococcal 13-valent conjugate vaccine IM on day 15.
After completion of study treatment, patients are followed up at day 28, and then every 6 months for up to 2 years.
- Conditions
- Monoclonal B-Cell Lymphocytosis, Stage 0 Chronic Lymphocytic Leukemia, Stage I Chronic Lymphocytic Leukemia, Stage I Small Lymphocytic Lymphoma
- Being tested
- Laboratory Biomarker Analysis, Lenalidomide, Pneumococcal 13-valent Conjugate Vaccine
- Medical subject headings
- Leukemia, Lymphocytic, Chronic, B-Cell
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Laboratory Biomarker AnalysisOther
Correlative studies
LenalidomideDrug
Also called CC-5013, CC5013, CDC 501, Revlimid
Given PO
Pneumococcal 13-valent Conjugate VaccineBiological
Also called PCV 13, PCV13 Vaccine, Prevnar 13
Given IM
| Study group | Role | What they receive |
|---|---|---|
| Arm I (lenalidomide, pneumococcal 13-valent conjugate vaccine) | Experimental | Patients receive lenalidomide PO QD on days 1-42 and pneumococcal 13-valent conjugate vaccine IM on day 15. Receives: Other: Laboratory Biomarker Analysis; Drug: Lenalidomide; Biological: Pneumococcal 13-valent Conjugate Vaccine |
| Arm II (pneumococcal 13-valent conjugate vaccine) | Active comparator | Patients receive pneumococcal 13-valent conjugate vaccine IM on day 15. Receives: Other: Laboratory Biomarker Analysis; Biological: Pneumococcal 13-valent Conjugate Vaccine |
What is being measured
The primary outcome is the main question the study is designed to answer.
Proportion of Participants With Successful Response
Rate of response to pneumococcal 13-valent conjugate vaccine defined as a four-fold rise from baseline to 28 days after immunization (day 43) for >= 2 of the 3 serotypes studied by OPA of antibodies from sera.
The proportion of successes will be estimated in each arm by the number of successes divided by the total number of evaluable patients. Ninety-five percent confidence intervals for the true success proportion will be calculated in each arm based on the normal approximation.
Measured: Day 43
Secondary outcomes (3)
Disease Status by Physical Exam and Complete Blood Counts
The distribution of disease status will be evaluated in each arm and will be summarized descriptively. Patients will be classified as responders (complete clinical response, incomplete marrow recovery, partial response) vs. non-responders (stable disease, progressive disease [PD]). For MBL, patients will be classified as not PD vs PD. Differences in disease status response will be compared between the two arms using Fisher's exact test.
Measured: At 6 weeks
Incidence of Adverse Events Using NCI Common Terminology Criteria for Adverse Events Version 4.0
Adverse Events were collected during treatment according to the NCI Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. The maximum grade for each type of adverse event will be recorded for each patient. The worst grade per patient is presented below.
Measured: Up to day 50
Time to Treatment for Progressive CLL
The distribution of time to treatment will be estimated in each arm using the method of Kaplan-Meier. Time to treatment will be compared between the two arms using log-rank statistics.
Measured: Time from the date of registration to the date of initiation of treatment for progressive CLL assessed up to 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Dec 2014 (estimated)
- Study start11 Jun 2015
- Primary completion28 Apr 2017
- Study completion21 Jul 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 Monoclonal B-Cell LymphocytosisStudies of the same condition, open and under way.
- More trials run by Mayo ClinicThe 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 12 participants (actual)
Sponsor and investigators
- Lead sponsor
- Mayo Clinic
- Sponsor type
- University, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Tait Shanafelt, Principal investigator, Mayo Clinic
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02309515
- Sponsor's protocol ID
- MC138E
- Other IDs
- NCI-2014-02373, RV-CL-CLL-PI-003938, MC138E, P30CA015083
- Status last verified
- Jun 2020
- First submitted
- 3 Dec 2014
- Last updated
- 19 Jan 2021
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 19 Jan 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Impact of Short Term Lenalidomide on Immune Response to Prevnar 13® in Individuals With Chronic Lymphocytic Leukemia (CLL), Small Lymphocytic Leukemia (SLL), and Monoclonal B Cell Lymphocytosis (MBL)
- ClinicalTrials.gov ID
- NCT02309515
- Acronym / sponsor ID
- MC138E
- Conditions
- Monoclonal B-Cell Lymphocytosis, Stage 0 Chronic Lymphocytic Leukemia, Stage I Chronic Lymphocytic Leukemia, Stage I Small Lymphocytic Lymphoma
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: Slow Accrual
- Enrolment
- 12 participants (actual)
- Lead sponsor
- Mayo ClinicUniversity, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Study start
- 11 Jun 2015 (actual)
- Primary completion
- 28 Apr 2017 (actual)
- Study completion
- 21 Jul 2017 (actual)
- First posted
- 5 Dec 2014 (estimated)
- Results
- Posted 19 Jan 2021
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This randomized phase II trial studies how well lenalidomide improves immune response to pneumococcal 13-valent conjugate vaccine in patients with chronic lymphocytic leukemia, small lymphocytic lymphoma, or monoclonal B cell lymphocytosis. Biological therapies, such as lenalidomide, use substances made from living organisms that may stimulate or suppress the immune system in different ways and stop cancer cells from growing. Lenalidomide may also improve the effectiveness of pneumococcal 13-valent conjugate vaccine that is used to prevent infection.
Detailed description
PRIMARY OBJECTIVES:
- To assess the ability of a 6 week course of low dose lenalidomide to improve the proportion of patients with monoclonal B cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL) who develop an immune response to pneumococcal vaccination as measured by the proportion of patients with >= 4-fold rise from pre-vaccine (day 15) for >= 2 of the 3 serotypes measured at 28 days post-vaccination by opsonophagocytic activity (OPA) of antibodies from sera.
SECONDARY OBJECTIVES:
- Evaluate disease status by physical exam and complete blood counts in patients participating in each arm of the study at the time of the 6 week assessment of immune response.
II. Evaluate time to treatment for progressive CLL for patients on each study arm.
III. Evaluate the adverse events profile in each study arm.
TERTIARY OBJECTIVES:
- To assess the immune response to pneumococcal vaccination as measured by fold-change from pre-vaccine (day 15) to 28 days post-vaccination in OPA geometric mean titers (GMT) of antibodies from sera.
II. To assess the immune response to pneumococcal vaccination as measured by fold-change from pre-vaccine (day 15) to 28 days post-vaccination in quantitative Streptococcus pneumoniae immunoglobulin G (IgG) GMT of antibodies from sera.
III. Evaluate the effect of 6 weeks of low dose lenalidomide on global immune function including T-cell repertoire, T-cell immune synapse, serum immunoglobulin levels, and absolute numbers of T-cell and natural killer (NK) cells.
OUTLINE: Patients are randomized 1 of 2 treatment arms.
ARM I: Patients receive lenalidomide orally (PO) once daily (QD) on days 1-42 and pneumococcal 13-valent conjugate vaccine intramuscularly (IM) on day 15.
ARM II: Patients receive pneumococcal 13-valent conjugate vaccine IM on day 15.
After completion of study treatment, patients are followed up at day 28, and then every 6 months for up to 2 years.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Arm I (lenalidomide, pneumococcal 13-valent conjugate vaccine) | Experimental | Other: Laboratory Biomarker Analysis, Drug: Lenalidomide, Biological: Pneumococcal 13-valent Conjugate VaccinePatients receive lenalidomide PO QD on days 1-42 and pneumococcal 13-valent conjugate vaccine IM on day 15. |
| Arm II (pneumococcal 13-valent conjugate vaccine) | Active comparator | Other: Laboratory Biomarker Analysis, Biological: Pneumococcal 13-valent Conjugate VaccinePatients receive pneumococcal 13-valent conjugate vaccine IM on day 15. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (35 listed)
- Diagnosis of:
- CLL or SLL patients only (does not apply to MBL patients): Rai stage 0-1 (both CLL and SLL patients can be staged using the Rai system)
- Patients must not previously have received the Prevnar 13 pneumococcal vaccination; NOTE: previous vaccination with Pneumovax (PCV23) is permitted but must have been at least 365 days prior to registration
- Patients must be previously untreated and must NOT have any of the following indications for chemotherapy:
- Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0 or 1
Key exclusion criteria (17 listed)
- Palpable lymph nodes > 3 cm in maximal dimension
- Any of the following:
- Any of the following comorbid conditions:
- Immunocompromised patients and patients known to be human immunodeficiency virus (HIV) positive and currently receiving antiretroviral therapy; NOTE: patients known to be HIV positive, but without clinical evidence of an immunocompromised state, are eligible for this trial
- Other active primary malignancy requiring treatment or limiting survival to =< 2 years prior to registration
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 |
|---|---|---|
| Laboratory Biomarker AnalysisCorrelative studies | Other | Arm I (lenalidomide, pneumococcal 13-valent conjugate vaccine), Arm II (pneumococcal 13-valent conjugate vaccine) |
| LenalidomideAlso: CC-5013, CC5013, CDC 501, RevlimidGiven PO | Drug | Arm I (lenalidomide, pneumococcal 13-valent conjugate vaccine) |
| Pneumococcal 13-valent Conjugate VaccineAlso: PCV 13, PCV13 Vaccine, Prevnar 13Given IM | Biological | Arm I (lenalidomide, pneumococcal 13-valent conjugate vaccine), Arm II (pneumococcal 13-valent conjugate vaccine) |
Primary outcome
Proportion of Participants With Successful Response
Time frame: Day 43
Rate of response to pneumococcal 13-valent conjugate vaccine defined as a four-fold rise from baseline to 28 days after immunization (day 43) for >= 2 of the 3 serotypes studied by OPA of antibodies from sera. The proportion of successes will be estimated in each arm by the number of successes divided by the total number of evaluable patients. Ninety-five percent confidence intervals for the true success proportion will be calculated in each arm based on the normal approximation.
3 secondary outcomes
Disease Status by Physical Exam and Complete Blood Counts
Time frame: At 6 weeks
Incidence of Adverse Events Using NCI Common Terminology Criteria for Adverse Events Version 4.0
Time frame: Up to day 50
Time to Treatment for Progressive CLL
Time frame: Time from the date of registration to the date of initiation of treatment for progressive CLL assessed up to 2 years
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Jan 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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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.
Tait Shanafelt principal investigator
Mayo Clinic
3 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Laboratory Biomarker Analysis, Lenalidomide and Pneumococcal 13-valent Conjugate Vaccine in people with Monoclonal B-Cell Lymphocytosis and Stage 0 Chronic Lymphocytic Leukemia, run by Mayo Clinic at 3 sites 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 35 inclusion and 17 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 19 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 3 sites 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 19 Jan 2021). 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?
Proportion of Participants With Successful Response (time frame: Day 43). 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 19 Jan 2021.