Breast CancerPhase 3NCT00022087
Zoledronate, Calcium, and Vitamin D in Preventing Bone Loss in Women Receiving Adjuvant Chemotherapy for Breast Cancer
A Phase 3 study testing calcium salts, cholecalciferol and zoledronic acid in people with Breast Cancer and Osteoporosis, run by Alliance for Clinical Trials in Oncology at 107 sites in United States.
Trial summary
RATIONALE: Zoledronate plus calcium and vitamin D may prevent bone loss in patients receiving adjuvant chemotherapy for breast cancer. It is not yet known which regimen is more effective in preventing bone loss. Read more about this study
- Who is it for?
- Ages 40 years and older, women only
- Conditions the study is for
- Breast Cancer, Osteoporosis
- What is being tested?
- calcium salts, cholecalciferol and zoledronic acid
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 439 participants
- Where
- 107 sitesUnited States
- Study dates
- Dec 2001to Feb 2009
- Phase
- Phase 3
- 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 40 years and older
- Women only
- No healthy volunteers
- Adult, Older adult
DISEASE CHARACTERISTICS:
- Histologically confirmed adenocarcinoma of the breast by fine needle aspirate, biopsy (tru-cut, core, stereotactic), lumpectomy, or modified radical mastectomy
- Stage I-III (any T, any N, M0)
- Stage IV due solely to supraclavicular node involvement allowed
- Plan to use adjuvant chemotherapy* with or without adjuvant endocrine therapy*
- Subsequent adjuvant hormonal therapy with an aromatase inhibitor allowed in women rendered postmenopausal by adjuvant chemotherapy NOTE: *Must be specified prior to study entry
- Hormone receptor status:
- Not specified
PATIENT CHARACTERISTICS:
Age:
- 40 and over
Sex:
- Female
Menopausal status:
- See Disease Characteristics
- Premenopausal, defined as actively menstruating or last menstrual period occurred within 6 months prior to study entry
- Prior hysterectomy without bilateral oophorectomy and estradiol and follicle-stimulating hormone within premenopausal range prior to the initiation of chemotherapy allowed
Performance status:
- Not specified
Life expectancy:
- Not specified
Hematopoietic:
- Not specified
Hepatic:
- Not specified
Renal:
- Not specified
Other:
- Not pregnant or nursing
- Negative pregnancy test
- Fertile patients must use effective contraception
PRIOR CONCURRENT THERAPY:
Biologic therapy:
- Not specified
Chemotherapy:
- See Disease Characteristics
- No more than 3 months since prior adjuvant chemotherapy
Endocrine therapy:
- See Disease Characteristics
Radiotherapy:
- Not specified
Surgery:
- See Disease Characteristics
- See Menopausal status
Other:
- No other concurrent bisphosphonates
- No concurrent digoxin
- No concurrent tetracycline
- Concurrent neoadjuvant therapy allowed
- Concurrent enrollment on therapeutic adjuvant clinical trials allowed provided the therapeutic trial does not preclude participation in this trial
Trial locations and contacts
107 sites in 1 country.
107 sites in 1 country
United States107 sites
Arroyo Grande Community Hospital
Arroyo Grande, California, 93420
Mission Hospitals - Memorial Campus
Asheville, North Carolina, 28801
Sturdy Memorial Hospital
Attleboro, Massachusetts, 02703
Greenebaum Cancer Center at University of Maryland Medical Center
Baltimore, Maryland, 21201
Harry and Jeanette Weinberg Cancer Institute at Franklin Square Hospital Center
Baltimore, Maryland, 21237
Southwestern Vermont Regional Cancer Center
Bennington, Vermont, 05201
Mountainview Medical
Berlin Corners, Vermont, 05602
Hematology Oncology Associates of the Quad Cities
Bettendorf, Iowa, 52722
St. Joseph Medical Center
Bloomington, Illinois, 61701
Massachusetts General Hospital Cancer Center
Boston, Massachusetts, 02114
Brigham and Women's Hospital
Boston, Massachusetts, 02115
Dana-Farber/Harvard Cancer Center at Dana Farber Cancer Institute
Boston, Massachusetts, 02115
Faulkner Hospital
Boston, Massachusetts, 02130
Roswell Park Cancer Institute
Buffalo, New York, 14263-0001
Fletcher Allen Health Care - University Health Center Campus
Burlington, Vermont, 05401
Graham Hospital
Canton, Illinois, 61520
Memorial Hospital
Carthage, Illinois, 62321
Iowa Blood and Cancer Care
Cedar Rapids, Iowa, 52402
St. Luke's Hospital
Cedar Rapids, Iowa, 52402
Mercy Regional Cancer Center at Mercy Medical Center
Cedar Rapids, Iowa, 52403
Saint Luke's Hospital
Chesterfield, Missouri, 63017
University of Chicago Cancer Research Center
Chicago, Illinois, 60637-1470
Arthur G. James Cancer Hospital and Solove Research Institute at Ohio State University
Columbus, Ohio, 43210-1240
Bethke Cancer Center at Emerson Hospital
Concord, Massachusetts, 01742
Simmons Comprehensive Cancer Center at University of Texas Southwestern Medical Center - Dallas
Dallas, Texas, 75390
Danville Regional Medical Center
Danville, Virginia, 24541
Kent General Hospital at Bayhealth Medical Center
Dover, Delaware, 19901
Duke Comprehensive Cancer Center
Durham, North Carolina, 27710
Elkhart General Hospital
Elkhart, Indiana, 46515
Union Hospital Cancer Center at Union Hospital
Elkton MD, Maryland, 21921
Eureka Community Hospital
Eureka, Illinois, 61530
Michael & Dianne Bienes Comprehensive Cancer Center at Holy Cross Hospital
Fort Lauderdale, Florida, 33308
Galesburg Clinic
Galesburg, Illinois, 61401
Galesburg Cottage Hospital
Galesburg, Illinois, 61401
InterCommunity Cancer Center of Western Illinois
Galesburg, Illinois, 61401
Wayne Memorial Hospital, Incorporated
Goldsboro, North Carolina, 27534
CCOP - Greenville
Greenville, South Carolina, 29615
Mason District Hospital
Havana, Illinois, 62644
Pardee Memorial Hospital
Hendersonville, North Carolina, 28791
Memorial Cancer Institute at Memorial Regional Hospital
Hollywood, Florida, 33021
New Hampshire Oncology-Hematology, PA - Hooksett
Hooksett, New Hampshire, 03106
Hopedale Medical Complex
Hopedale, Illinois, 61747
St. Mary's Regional Cancer Center at St. Mary's Medical Center
Huntington, West Virginia, 25702
Jersey City Medical Center at Liberty Health
Jersey City, New Jersey, 07302
Ella Milbank Foshay Cancer Center at Jupiter Medical Center
Jupiter, Florida, 33458
CCOP - Kansas City
Kansas City, Missouri, 64131
Kewanee Hospital
Kewanee, Illinois, 61443
Lenoir Memorial Cancer Center
Kinston, North Carolina, 28501
La Grange Memorial Hospital
La Grange, Illinois, 60525
Rebecca and John Moores UCSD Cancer Center
La Jolla, California, 92093-0658
Center for Cancer Therapy at LaPorte Hospital and Health Services
La Porte, Indiana, 46350
Lakes Region General Hospital
Laconia, New Hampshire, 03246
University Medical Center of Southern Nevada
Las Vegas, Nevada, 89102
CCOP - Nevada Cancer Research Foundation
Las Vegas, Nevada, 89106
Beebe Medical Center
Lewes, Delaware, 19958
Central Maine Medical Center
Lewiston, Maine, 04240
Lowell General Hospital
Lowell, Massachusetts, 01854
McDonough District Hospital
Macomb, Illinois, 61455
Elliot Regional Cancer Center
Manchester, New Hampshire, 03103
Suniti Medical Corporation
Merrillville, Indiana, 46410
CCOP - Mount Sinai Medical Center
Miami Beach, Florida, 33140
Fairview University Medical Center - University Campus
Minneapolis, Minnesota, 55455
El Camino Hospital
Mountain View, California, 94040
Oncology Center at St. Joseph Hospital
Nashua, New Hampshire, 03060
Memorial Sloan-Kettering Cancer Center
New York, New York, 10021
CCOP - Christiana Care Health Services
Newark, Delaware, 19713
BroMenn Regional Medical Center
Normal, Illinois, 61761
Community Cancer Center
Normal, Illinois, 61761
Advocate Christ Medical Center
Oak Lawn, Illinois, 60453-2699
Methodist Cancer Center at Methodist Hospital - Omaha
Omaha, Nebraska, 68114
Community Hospital of Ottawa
Ottawa, Illinois, 61350
Cancer Treatment Center at Pekin Hospital
Pekin, Illinois, 61554
Proctor Hospital
Peoria, Illinois, 61614
CCOP - Illinois Oncology Research Association
Peoria, Illinois, 61615
Oncology/Hematology Associates of Central Illinois, P.C.
Peoria, Illinois, 61615
Methodist Medical Center of Illinois
Peoria, Illinois, 61636
OSF St. Francis Medical Center
Peoria, Illinois, 61637
Illinois Valley Community Hospital
Peru, Illinois, 61354
Moore Regional Community Hospital Comprehensive Cancer Center
Pinehurst, North Carolina, 28374
Western Pennsylvania Cancer Institute at Western Pennsylvania Hospital
Pittsburgh, Pennsylvania, 15224-1791
Cancer Research Network, Incorporated
Plantation, Florida, 33324
Perry Memorial Hospital
Princeton, Illinois, 61356
Rhode Island Hospital
Providence, Rhode Island, 02903
Women and Infants Hospital of Rhode Island
Providence, Rhode Island, 02905
Miriam Hospital at Lifespan
Providence, Rhode Island, 02906
Community Cancer Center at Rutland Regional Medical Center
Rutland, Vermont, 05701
Naval Medical Center - San Diego
San Diego, California, 92134
Veterans Affairs Medical Center - San Diego
San Diego, California, 92161
Maine Center for Cancer Medicine and Blood Disorders - Scarborough
Scarborough, Maine, 04074
CCOP - Northern Indiana CR Consortium
South Bend, Indiana, 46601
Memorial Hospital of South Bend
South Bend, Indiana, 46601
Saint Joseph Regional Medical Center
South Bend, Indiana, 46617
St. Margaret's Hospital
Spring Valley, Illinois, 61362
Valley Cancer Center
Spring Valley, Illinois, 61362
Siteman Cancer Center at Barnes-Jewish Hospital
St Louis, Missouri, 63110
Missouri Baptist Cancer Center
St Louis, Missouri, 63131
Nalitt Cancer Institute at Staten Island University Hospital
Staten Island, New York, 10305
CCOP - Hematology-Oncology Associates of Central New York
Syracuse, New York, 13057
Community General Hospital of Greater Syracuse
Syracuse, New York, 13215
Faxton Regional Cancer Center
Utica, New York, 13502
Cancer Institute of New Jersey at the Cooper University Hospital - Voorhees
Voorhees Township, New Jersey, 08043
Lombardi Comprehensive Cancer Center at Georgetown University Medical Center
Washington D.C., District of Columbia, 20007
Washington Cancer Institute at Washington Hospital Center
Washington D.C., District of Columbia, 20010
Sibley Memorial Hospital
Washington D.C., District of Columbia, 20016
Missouri Cancer Care, P. C. - Wentzville
Wentzville, Missouri, 63385
Cleveland Clinic Florida - Weston
Weston, Florida, 33331
St. Francis Hospital
Wilmington, Delaware, 19805
About this study
Official title: Phase III Trial of Intravenous Zoledronic Acid (Zometa) in the Prevention of Bone Loss in Localized Breast Cancer Patients With Chemotherapy-Induced Ovarian Failure
RATIONALE: Zoledronate plus calcium and vitamin D may prevent bone loss in patients receiving adjuvant chemotherapy for breast cancer. It is not yet known which regimen is more effective in preventing bone loss.
PURPOSE: This randomized phase III trial is comparing two regimens of zoledronate plus calcium and vitamin D to see how well they work in preventing bone loss in women who are receiving adjuvant chemotherapy for breast cancer.
Read the detailed description
OBJECTIVES:
- Compare the bone mineral density in the lumbar spine after 12 and 36 months of therapy with zoledronate, calcium, and cholecalciferol (vitamin D) in women with breast cancer receiving adjuvant chemotherapy.
OUTLINE: This is a randomized, open-label, multicenter study. Patients are stratified according to intent to treat with tamoxifen (yes vs no) and node status (negative vs positive vs unknown [for patients receiving neoadjuvant therapy]). Patients are randomized to 1 of 2 treatment arms.
- Arm I: Beginning on the first day of adjuvant chemotherapy (or within 3 months after the first day), patients receive zoledronate IV over at least 15 minutes once every 3 months during months 1-24 and oral calcium and oral cholecalciferol (vitamin D) daily during months 1-36.
- Arm II: Beginning on the first day of adjuvant chemotherapy (or within 3 months after the first day), patients receive oral calcium and oral vitamin D daily during months 1-36 and zoledronate IV over at least 15 minutes once every 3 months during months 13-36.
PROJECTED ACCRUAL: Approximately 400 patients (200 per treatment arm) will be accrued for this study within 24 months.
- Conditions
- Breast Cancer, Osteoporosis
- Being tested
- calcium salts, cholecalciferol, zoledronic acid
- Keywords
- osteoporosis, stage I breast cancer, stage II breast cancer, stage IV breast cancer, stage IIIA breast cancer, stage IIIB breast cancer, stage IIIC breast cancer
- Medical subject headings
- Breast Neoplasms, Osteoporosis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
calcium saltsDietary supplement
1000 mg PO per day
cholecalciferolDietary supplement
Also called Vitamin D
400 IU PO per day
zoledronic acidDrug
Also called Zometa
4 mg IV infusion q 3 months, months 1-24 in Zoledronic acid initial tx arm and months 13-36 in calcium + vit D initial tx arm
| Study group | Role | What they receive |
|---|---|---|
| Zoledronic acid initial tx | Experimental | Zoledronic acid + calcium + Vit D for 2 years, followed by Calcium + vit D for 1 year Receives: Dietary Supplement: calcium salts; Dietary Supplement: cholecalciferol; Drug: zoledronic acid |
| Calcium + Vit D initial Tx | Experimental | Calcium + vitamin D for 1 year followed by zoledronic acid + calcium + vit D for 2 years Receives: Dietary Supplement: calcium salts; Dietary Supplement: cholecalciferol; Drug: zoledronic acid |
What is being measured
The primary outcome is the main question the study is designed to answer.
Bone mineral density in the lumbar spine
Measured: 12 months from randomization
Secondary outcomes (1)
Bone mineral density in the lumbar spine
Measured: 36 months post randomization
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Jan 2003 (estimated)
- Study startDec 2001
- Primary completionMar 2007
- Study completionFeb 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Breast CancerStudies of the same condition, open and under way.
- More trials run by Alliance for Clinical Trials in OncologyThe 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 3
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 439 participants (actual)
Sponsor and investigators
- Lead sponsor
- Alliance for Clinical Trials in Oncology
- Sponsor type
- University, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Charles L. Shapiro, MD, Study chair, Ohio State University Comprehensive Cancer Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00022087
- Sponsor's protocol ID
- CALGB-79809
- Other IDs
- U10CA031946, CALGB-79809, NCI-P01-0184, CDR0000068781
- Status last verified
- Jul 2016
- First submitted
- 10 Aug 2001
- Last updated
- 19 Jul 2016
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Shapiro CL, Halabi S, Gibson G, et al.: Effect of zoledronic acid (ZA) on bone mineral density (BMD) in premenopausal women who develop ovarian failure (OF) due to adjuvant chemotherapy (AdC): first results from CALGB trial 79809. [Abstract] J Clin Oncol 26 (Suppl 15): A-512, 2008.
Adams A, Jakob T, Huth A, Monsef I, Ernst M, Kopp M, Caro-Valenzuela J, Wockel A, Skoetz N. Bone-modifying agents for reducing bone loss in women with early and locally advanced breast cancer: a network meta-analysis. Cochrane Database Syst Rev. 2024 Jul 9;7(7):CD013451. doi: 10.1002/14651858.CD013451.pub2.
PubMed 38979716
Study at a glance
From the registry record, last updated by the sponsor on 19 Jul 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase III Trial of Intravenous Zoledronic Acid (Zometa) in the Prevention of Bone Loss in Localized Breast Cancer Patients With Chemotherapy-Induced Ovarian Failure
- ClinicalTrials.gov ID
- NCT00022087
- Acronym / sponsor ID
- CALGB-79809
- Conditions
- Breast Cancer, Osteoporosis
- Keywords
- osteoporosis, stage I breast cancer, stage II breast cancer, stage IV breast cancer, stage IIIA breast cancer, stage IIIB breast cancer, stage IIIC breast cancer
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 439 participants (actual)
- Lead sponsor
- Alliance for Clinical Trials in OncologyUniversity, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Study start
- Dec 2001
- Primary completion
- Mar 2007 (actual)
- Study completion
- Feb 2009 (actual)
- First posted
- 27 Jan 2003 (estimated)
- 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.
RATIONALE: Zoledronate plus calcium and vitamin D may prevent bone loss in patients receiving adjuvant chemotherapy for breast cancer. It is not yet known which regimen is more effective in preventing bone loss.
PURPOSE: This randomized phase III trial is comparing two regimens of zoledronate plus calcium and vitamin D to see how well they work in preventing bone loss in women who are receiving adjuvant chemotherapy for breast cancer.
Detailed description
OBJECTIVES:
- Compare the bone mineral density in the lumbar spine after 12 and 36 months of therapy with zoledronate, calcium, and cholecalciferol (vitamin D) in women with breast cancer receiving adjuvant chemotherapy.
OUTLINE: This is a randomized, open-label, multicenter study. Patients are stratified according to intent to treat with tamoxifen (yes vs no) and node status (negative vs positive vs unknown [for patients receiving neoadjuvant therapy]). Patients are randomized to 1 of 2 treatment arms.
- Arm I: Beginning on the first day of adjuvant chemotherapy (or within 3 months after the first day), patients receive zoledronate IV over at least 15 minutes once every 3 months during months 1-24 and oral calcium and oral cholecalciferol (vitamin D) daily during months 1-36.
- Arm II: Beginning on the first day of adjuvant chemotherapy (or within 3 months after the first day), patients receive oral calcium and oral vitamin D daily during months 1-36 and zoledronate IV over at least 15 minutes once every 3 months during months 13-36.
PROJECTED ACCRUAL: Approximately 400 patients (200 per treatment arm) will be accrued for this study within 24 months.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Zoledronic acid initial tx | Experimental | Dietary Supplement: calcium salts, Dietary Supplement: cholecalciferol, Drug: zoledronic acidZoledronic acid + calcium + Vit D for 2 years, followed by Calcium + vit D for 1 year |
| Calcium + Vit D initial Tx | Experimental | Dietary Supplement: calcium salts, Dietary Supplement: cholecalciferol, Drug: zoledronic acidCalcium + vitamin D for 1 year followed by zoledronic acid + calcium + vit D for 2 years |
Who may qualify
- Ages
- 40 years and older
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
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 |
|---|---|---|
| calcium salts1000 mg PO per day | Dietary supplement | Calcium + Vit D initial Tx, Zoledronic acid initial tx |
| cholecalciferolAlso: Vitamin D400 IU PO per day | Dietary supplement | Calcium + Vit D initial Tx, Zoledronic acid initial tx |
| zoledronic acidAlso: Zometa4 mg IV infusion q 3 months, months 1-24 in Zoledronic acid initial tx arm and months 13-36 in calcium + vit D initial tx arm | Drug | Calcium + Vit D initial Tx, Zoledronic acid initial tx |
Primary outcome
Bone mineral density in the lumbar spine
Time frame: 12 months from randomization
1 secondary outcome
Bone mineral density in the lumbar spine
Time frame: 36 months post randomization
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Jul 2016.
- Results publicationShapiro CL, Halabi S, Gibson G, et al.: Effect of zoledronic acid (ZA) on bone mineral density (BMD) in premenopausal women who develop ovarian failure (OF) due to adjuvant chemotherapy (AdC): first results from CALGB trial 79809. [Abstract] J Clin Oncol 26 (Suppl 15): A-512, 2008.
- Derived from this study: PubMed 38979716Adams A, Jakob T, Huth A, Monsef I, Ernst M, Kopp M, Caro-Valenzuela J, Wockel A, Skoetz N. Bone-modifying agents for reducing bone loss in women with early and locally advanced breast cancer: a network meta-analysis. Cochrane Database Syst Rev. 2024 Jul 9;7(7):CD013451. doi: 10.1002/14651858.CD013451.pub2.
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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.
Charles L. Shapiro, MD study chair
Ohio State University Comprehensive Cancer Center
107 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing calcium salts, cholecalciferol and zoledronic acid in people with Breast Cancer and Osteoporosis, run by Alliance for Clinical Trials in Oncology at 107 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?
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 19 Jul 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 107 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Bone mineral density in the lumbar spine (time frame: 12 months from randomization). 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 NCT00022087, which also lists 2 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 19 Jul 2016.