Brain and Central Nervous System TumorsPhase 2NCT00099125
Radiation Therapy, Temozolomide, and Irinotecan in Treating Patients With Newly Diagnosed Glioblastoma Multiforme
A Phase 2 study testing irinotecan hydrochloride, temozolomide and adjuvant therapy in people with Brain and Central Nervous System Tumors, run by Radiation Therapy Oncology Group at 118 sites in United States.
Trial summary
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Drugs used in chemotherapy, such as temozolomide and irinotecan, work in different ways to stop tumor cells from dividing so they stop growing or die. Combining radiation therapy with chemotherapy may kill more tumor cells. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Brain and Central Nervous System Tumors
- What is being tested?
- irinotecan hydrochloride, temozolomide and adjuvant therapy
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 170 participants
- Where
- 118 sitesUnited States
- Study dates
- Nov 2004to Nov 2013
- Phase
- Phase 2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
DISEASE CHARACTERISTICS:
- Histologically confirmed newly diagnosed supratentorial glioblastoma multiforme by surgical biopsy or excision
- No gliomas graded less than glioblastoma multiforme
- No recurrent malignant gliomas
- No tumor foci below the tentorium or beyond the cranial vault
- Study therapy must begin ≤ 5 weeks after surgery
PATIENT CHARACTERISTICS:
Age
- 18 and over
Performance status
- Zubrod 0-1
Life expectancy
- At least 8 weeks
Hematopoietic
- Absolute neutrophil count ≥ 1,500/mm^3
- Platelet count ≥ 100,000/mm^3
- Hemoglobin ≥ 10 g/dL*
- Hematocrit ≥ 30%* NOTE: *Transfusion allowed
Hepatic
- Bilirubin ≤ 0.5 mg/dL
- ALT or AST ≤ 2 times upper limit of normal
Renal
- Creatinine ≤ 1.5 mg/dL
- BUN ≤ 25 mg/dL
Other
- Not pregnant or nursing
- Negative pregnancy test
- Fertile patients must use effective double-barrier contraception during and for 2 months after study participation
- No AIDS
- No other malignancy within the past 5 years except nonmelanoma skin cancer or carcinoma in situ of the cervix or bladder
- No other major medical illness or psychiatric impairment that would preclude study participation
PRIOR CONCURRENT THERAPY:
Biologic therapy
- No concurrent sargramostim (GM-CSF)
Chemotherapy
- No other concurrent chemotherapy
Endocrine therapy
- Concurrent steroid therapy allowed provided patient is on a stable or decreasing dose for at least 2 weeks before study entry
Radiotherapy
- No prior radiotherapy to the head or neck resulting in overlap of radiotherapy fields
- Prior radiotherapy for stage T1 glottic cancer allowed
Surgery
- See Disease Characteristics
- Recovered from prior surgery
Other
- No enzyme-inducing antiepileptic drugs within 14 days before the initiation of irinotecan
- Concurrent non-enzyme-inducing antiepileptic drugs allowed
Trial locations and contacts
118 sites in 1 country.
118 sites in 1 country
United States118 sites
Abington Memorial Hospital
Abington, Pennsylvania, 19001
Akron City Hospital
Akron, Ohio, 44304
McDowell Cancer Center at Akron General Medical Center
Akron, Ohio, 44307
University of New Mexico Cancer Research and Treatment Center
Albuquerque, New Mexico, 87106
John and Dorothy Morgan Cancer Center at Lehigh Valley Hospital
Allentown, Pennsylvania, 18105
Radiation Oncology Center
Alliance, Ohio, 44601
University of Michigan Comprehensive Cancer Center
Ann Arbor, Michigan, 48109
Northwest Community Hospital
Arlington Heights, Illinois, 60005
Randolph Hospital
Asheboro, North Carolina, 27203
Mission Hospitals - Memorial Campus
Asheville, North Carolina, 28801
St. Francis Hospital and Health Centers
Beech Grove, Indiana, 46107
Green Mountain Oncology Group
Bennington, Vermont, 05201
St. Luke's Hospital Cancer Center
Bethlehem, Pennsylvania, 18015
Saint Alphonsus Cancer Care Center at Saint Alphonsus Regional Medical Center
Boise, Idaho, 83706
Bryn Mawr Hospital
Bryn Mawr, Pennsylvania, 19010
Roswell Park Cancer Institute
Buffalo, New York, 14263
Providence Saint Joseph Medical Center - Burbank
Burbank, California, 91505
Fletcher Allen Health Care - University Health Center Campus
Burlington, Vermont, 05401
Cancer Institute of New Jersey at the Cooper University Hospital
Camden, New Jersey, 08103
Cooper Cancer Institute
Camden, New Jersey, 08103
Aultman Hospital Cancer Center at Aultman Health Foundation
Canton, Ohio, 44710
Cancer Institute of Cape Girardeau
Cape Girardeau, Missouri, 63703
Hollings Cancer Center at Medical University of South Carolina
Charleston, South Carolina, 29425
Robert H. Lurie Comprehensive Cancer Center at Northwestern University
Chicago, Illinois, 60611-3013
University of Chicago Cancer Research Center
Chicago, Illinois, 60637-1470
Charles M. Barrett Cancer Center at University Hospital
Cincinnati, Ohio, 45267
John B. Amos Community Cancer Center
Columbus, Georgia, 31904
CCOP - Columbus
Columbus, Ohio, 43215
Dartmouth - Hitchcock Concord
Concord, New Hampshire, 03301
Grandview Hospital
Dayton, Ohio, 45405
David L. Rike Cancer Center at Miami Valley Hospital
Dayton, Ohio, 45409
Veterans Affairs Medical Center - Dayton
Dayton, Ohio, 45428
Josephine Ford Cancer Center at Henry Ford Hospital
Detroit, Michigan, 48202
John Smith, Jr./Dalton McMichael Cancer Center at Morehead Memorial Hospital
Eden, North Carolina, 27288
John F. Kennedy Medical Center
Edison, New Jersey, 08818
Saint Agnes Medical Center
Fresno, California, 93720
University of Florida Shands Cancer Center
Gainesville, Florida, 32610
Legacy Mount Hood Medical Center
Glesham, Oregon, 97030
Wayne Radiation Oncology
Goldsboro, North Carolina, 27534
St. Vincent Hospital
Green Bay, Wisconsin, 54301
Moses Cone Regional Cancer Center at Wesley Long Community Hospital
Greensboro, North Carolina, 27401
UPMC Cancer Center - Arnold Palmer Pavilion
Greensburg, Pennsylvania, 15601
Ingalls Cancer Care Center at Ingalls Memorial Hospital
Harvey, Illinois, 60426
Penn State Cancer Institute at Milton S. Hershey Medical Center
Hershey, Pennsylvania, 17033-0850
Baptist Cancer Institute - Jacksonville
Jacksonville, Florida, 32207
West Michigan Cancer Center
Kalamazoo, Michigan, 49007
Charles F. Kettering Memorial Hospital
Kettering, Ohio, 45429
Gundersen Lutheran Cancer Center at Gundersen Lutheran Medical Center
La Crosse, Wisconsin, 54601
CCOP - Southern Nevada Cancer Research Foundation
Las Vegas, Nevada, 89106
Norris Cotton Cancer Center at Dartmouth-Hitchcock Medical Center
Lebanon, New Hampshire, 03756
Loma Linda University Cancer Institute at Loma Linda University Medical Center
Loma Linda, California, 92354
Monmouth Medical Center
Long Branch, New Jersey, 07740
University of Wisconsin Comprehensive Cancer Center
Madison, Wisconsin, 53792
Cardinal Bernardin Cancer Center at Loyola University Medical Center
Maywood, Illinois, 60153
UPMC McKeesport
McKeesport, Pennsylvania, 15132
Community Memorial Hospital
Menomonee Falls, Wisconsin, 53051
Middletown Regional Hospital
Middletown, Ohio, 45044
Medical College of Wisconsin Cancer Center
Milwaukee, Wisconsin, 53226
Providence Milwaukie Hospital
Milwaukie, Oregon, 97222
Providence Holy Cross Cancer Center
Mission Hills, California, 91346-9600
Cottonwood Hospital Medical Center
Murray, Utah, 84107
Yale Comprehensive Cancer Center at Yale University School of Medicine
New Haven, Connecticut, 06520-8032
Tulane Cancer Center
New Orleans, Louisiana, 70112
CCOP - Ochsner
New Orleans, Louisiana, 70121
CCOP - Christiana Care Health Services
Newark, Delaware, 19718
McKay-Dee Hospital Center
Ogden, Utah, 84403
Methodist Cancer Center at Methodist Hospital - Omaha
Omaha, Nebraska, 68114
Paoli Memorial Hospital
Paoli, Pennsylvania, 19301
Regional Cancer Center at Singing River Hospital
Pascagoula, Mississippi, 39581
Kimmel Cancer Center at Thomas Jefferson University - Philadelphia
Philadelphia, Pennsylvania, 19107
Albert Einstein Cancer Center
Philadelphia, Pennsylvania, 19141
Foundation for Cancer Research and Education
Phoenix, Arizona, 85013
Allegheny Cancer Center at Allegheny General Hospital
Pittsburgh, Pennsylvania, 15212
Hillman Cancer Center at University of Pittsburgh Cancer Institute
Pittsburgh, Pennsylvania, 15213
UPMC Cancer Center at Magee-Womens Hospital
Pittsburgh, Pennsylvania, 15213
UPMC Cancer Center at UPMC Presbyterian
Pittsburgh, Pennsylvania, 15213
UPMC St. Margaret
Pittsburgh, Pennsylvania, 15215
Mercy Hospital of Pittsburgh
Pittsburgh, Pennsylvania, 15219
UPMC - Shadyside
Pittsburgh, Pennsylvania, 15232
UPMC - Passavant Hospital
Pittsburgh, Pennsylvania, 15237
Cancer Center at St. Clair Memorial Hospital
Pittsburgh, Pennsylvania, 15243
Pomona Valley Hospital Medical Center
Pomona, California, 91767
Comprehensive Cancer Center at Legacy Good Samaritan Hospital & Medical Center
Portland, Oregon, 97210
Providence Cancer Center at Providence Portland Medical Center
Portland, Oregon, 97213
CCOP - Columbia River Oncology Program
Portland, Oregon, 97225
Providence St. Vincent Medical Center
Portland, Oregon, 97225
Institute of Oncology at Vilnius University
Portland, Oregon, 97227
Utah Valley Regional Medical Center - Provo
Provo, Utah, 84603
Rapid City Regional Hospital
Rapid City, South Dakota, 57701
Annie Penn Cancer Center
Reidsville, North Carolina, 27320
Massey Cancer Center at Virginia Commonwealth University
Richmond, Virginia, 23298
Lipson Cancer and Blood Center at Rochester General Hospital
Rochester, New York, 14621
James P. Wilmot Cancer Center at University of Rochester Medical Center
Rochester, New York, 14642
Regional Radiation Oncology Center at Rome
Rome, Georgia, 30165
Community Cancer Center at Rutland Regional Medical Center
Rutland, Vermont, 05701
Radiological Associates of Sacramento Medical Group, Inc.
Sacramento, California, 95815
Cancer Research UK Medical Oncology Unit at Churchill Hospital & Weatherall Institute of Molecular Medicine - Oxford
Salem, Ohio, 44460
Utah Cancer Specialists at UCS Cancer Center
Salt Lake City, Utah, 84106
LDS Hospital
Salt Lake City, Utah, 84143
CCOP - Virginia Mason Research Center
Seattle, Washington, 98101
CCOP - Upstate Carolina
Spartanburg, South Carolina, 29304
CCOP - Cancer Research for the Ozarks
Springfield, Missouri, 65802
St. John's Regional Health Center
Springfield, Missouri, 65804
Hulston Cancer Center at Cox Medical Center South
Springfield, Missouri, 65807
Siteman Cancer Center at Barnes-Jewish Hospital
St Louis, Missouri, 63110
Dixie Regional Medical Center
St. George, Utah, 84770
Community Medical Center
Toms River, New Jersey, 08755
UVMC Cancer Care Center at Upper Valley Medical Center
Troy, Ohio, 45373
Legacy Meridian Park Hospital
Tualatin, Oregon, 97062
Natalie Warren Bryant Cancer Center at St. Francis Hospital
Tulsa, Oklahoma, 74136
Southwest Washington Medical Center Cancer Center
Vancouver, Washington, 98668
Reading Hospital and Medical Center
West Reading, Pennsylvania, 19612
Cancer Treatment Center
Wooster, Ohio, 44691
CCOP - MainLine Health
Wynnewood, Pennsylvania, 19096
Lankenau Cancer Center at Lankenau Hospital
Wynnewood, Pennsylvania, 19096
Ruth G. McMillan Cancer Center at Greene Memorial Hospital
Xenia, Ohio, 45385
North Star Lodge Cancer Center
Yakima, Washington, 98902
York Cancer Center at Wellspan Health
York, Pennsylvania, 17405
About this study
Official title: A Phase II Study Of Radiation Therapy Plus Low Dose Temozolomide Followed By Temozolomide Plus Irinotecan For Glioblastoma Multiforme
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Drugs used in chemotherapy, such as temozolomide and irinotecan, work in different ways to stop tumor cells from dividing so they stop growing or die. Combining radiation therapy with chemotherapy may kill more tumor cells.
PURPOSE: This phase II trial is studying how well radiation therapy, temozolomide, and irinotecan work in treating patients with newly diagnosed glioblastoma multiforme.
Read the detailed description
OBJECTIVES:
- Compare overall survival of patients with newly diagnosed supratentorial glioblastoma multiforme treated with radiotherapy and temozolomide followed by temozolomide and irinotecan with historical controls from the RTOG database.
- Determine the short- and long-term toxicity of this regimen in these patients.
- Determine progression-free survival of patients treated with this regimen.
OUTLINE: This is a multicenter study.
- Chemoradiotherapy: Patients undergo radiotherapy once daily, 5 days a week, for 6 weeks. Concurrently with radiotherapy, patients receive oral temozolomide once daily, 7 days a week, for 6 weeks.
- Post-radiotherapy chemotherapy: Beginning 4-6 weeks after the completion of chemoradiotherapy, patients receive irinotecan IV on days 1 and 15 and oral temozolomide once daily on days 1-5. Treatment repeats every 28 days for up to 1 year in the absence of disease progression or unacceptable toxicity.
Patients are followed every 2 months for 2 years and then every 6 months thereafter.
PROJECTED ACCRUAL: A total of 157 patients will be accrued for this study within 11 months.
- Conditions
- Brain and Central Nervous System Tumors
- Being tested
- irinotecan hydrochloride, temozolomide, adjuvant therapy, radiation therapy
- Keywords
- adult giant cell glioblastoma, adult gliosarcoma, adult glioblastoma
- Medical subject headings
- Central Nervous System Neoplasms, Glioblastoma, Gliosarcoma
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
temozolomideDrug
adjuvant therapyProcedure or surgery
radiation therapyRadiation
| Study group | Role | What they receive |
|---|---|---|
| RT with chemotherapy + post-radiation chemotherapy | Experimental | Radiation therapy (RT) with concurrent chemotherapy + post-radiation chemotherapy Receives: Drug: irinotecan hydrochloride; Drug: temozolomide; Procedure: adjuvant therapy; Radiation: radiation therapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Overall survival
Measured: From registration to date of death or last follow-up. Analysis occurs after all patients have been potentially followed for 18 months.
Secondary outcomes (1)
Progression-free survival
Measured: From randomization to date of progression, death, or last follow-up. Analysis occurs at the same time as the primary outcome analysis.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Dec 2004 (estimated)
- Study startNov 2004
- Primary completionOct 2006
- Study completionNov 2013
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Brain and Central Nervous System TumorsStudies of the same condition, open and under way.
- 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
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 170 participants (actual)
Sponsor and investigators
- Lead sponsor
- Radiation Therapy Oncology Group
- Sponsor type
- Research network
- Collaborators
- National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Frank S. Lieberman, MD, Study chair, University of PittsburghChristina I. Tsien, MD, Study chair, University of Michigan Rogel Cancer Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00099125
- Sponsor's protocol ID
- RTOG-0420
- Other IDs
- CDR0000389229
- Status last verified
- Jan 2014
- First submitted
- 8 Dec 2004
- Last updated
- 24 Jan 2014
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Lieberman FS, Tsien C, Berkey B, et al.: Phase II trial of concomitant low dose temozolomide with external beam radiation (EBRT) followed by 12 months of temozolomide and irinotecan for newly diagnosed glioblastoma (GBM): preliminary results of RTOG 04-20. [Abstract] J Clin Oncol 24 (Suppl 18): A-1510, 2006.
Study at a glance
From the registry record, last updated by the sponsor on 24 Jan 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase II Study Of Radiation Therapy Plus Low Dose Temozolomide Followed By Temozolomide Plus Irinotecan For Glioblastoma Multiforme
- ClinicalTrials.gov ID
- NCT00099125
- Acronym / sponsor ID
- RTOG-0420
- Conditions
- Brain and Central Nervous System Tumors
- Keywords
- adult giant cell glioblastoma, adult gliosarcoma, adult glioblastoma
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 170 participants (actual)
- Lead sponsor
- Radiation Therapy Oncology GroupResearch network
- Collaborators
- National Cancer Institute (NCI)
- Study start
- Nov 2004
- Primary completion
- Oct 2006 (actual)
- Study completion
- Nov 2013 (actual)
- First posted
- 9 Dec 2004 (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: Radiation therapy uses high-energy x-rays to damage tumor cells. Drugs used in chemotherapy, such as temozolomide and irinotecan, work in different ways to stop tumor cells from dividing so they stop growing or die. Combining radiation therapy with chemotherapy may kill more tumor cells.
PURPOSE: This phase II trial is studying how well radiation therapy, temozolomide, and irinotecan work in treating patients with newly diagnosed glioblastoma multiforme.
Detailed description
OBJECTIVES:
- Compare overall survival of patients with newly diagnosed supratentorial glioblastoma multiforme treated with radiotherapy and temozolomide followed by temozolomide and irinotecan with historical controls from the RTOG database.
- Determine the short- and long-term toxicity of this regimen in these patients.
- Determine progression-free survival of patients treated with this regimen.
OUTLINE: This is a multicenter study.
- Chemoradiotherapy: Patients undergo radiotherapy once daily, 5 days a week, for 6 weeks. Concurrently with radiotherapy, patients receive oral temozolomide once daily, 7 days a week, for 6 weeks.
- Post-radiotherapy chemotherapy: Beginning 4-6 weeks after the completion of chemoradiotherapy, patients receive irinotecan IV on days 1 and 15 and oral temozolomide once daily on days 1-5. Treatment repeats every 28 days for up to 1 year in the absence of disease progression or unacceptable toxicity.
Patients are followed every 2 months for 2 years and then every 6 months thereafter.
PROJECTED ACCRUAL: A total of 157 patients will be accrued for this study within 11 months.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| RT with chemotherapy + post-radiation chemotherapy | Experimental | Drug: irinotecan hydrochloride, Drug: temozolomide, Procedure: adjuvant therapy, Radiation: radiation therapyRadiation therapy (RT) with concurrent chemotherapy + post-radiation chemotherapy |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- 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 |
|---|---|---|
| irinotecan hydrochloride | Drug | RT with chemotherapy + post-radiation chemotherapy |
| temozolomide | Drug | RT with chemotherapy + post-radiation chemotherapy |
| adjuvant therapy | Procedure or surgery | RT with chemotherapy + post-radiation chemotherapy |
| radiation therapy | Radiation | RT with chemotherapy + post-radiation chemotherapy |
Primary outcome
Overall survival
Time frame: From registration to date of death or last follow-up. Analysis occurs after all patients have been potentially followed for 18 months.
1 secondary outcome
Progression-free survival
Time frame: From randomization to date of progression, death, or last follow-up. Analysis occurs at the same time as the primary outcome analysis.
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 24 Jan 2014.
- Results publicationLieberman FS, Tsien C, Berkey B, et al.: Phase II trial of concomitant low dose temozolomide with external beam radiation (EBRT) followed by 12 months of temozolomide and irinotecan for newly diagnosed glioblastoma (GBM): preliminary results of RTOG 04-20. [Abstract] J Clin Oncol 24 (Suppl 18): A-1510, 2006.
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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.
Frank S. Lieberman, MD study chair
University of Pittsburgh
Christina I. Tsien, MD study chair
University of Michigan Rogel Cancer Center
118 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 irinotecan hydrochloride, temozolomide and adjuvant therapy in people with Brain and Central Nervous System Tumors, run by Radiation Therapy Oncology Group at 118 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 24 Jan 2014. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 118 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?
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?
Overall survival (time frame: From registration to date of death or last follow-up. Analysis occurs after all patients have been potentially followed for 18 months.). 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 NCT00099125, which also lists 1 linked publication.
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 24 Jan 2014.