OsteoporosisPhase 3NCT00329797
Zoledronate in Preventing Osteoporosis and Bone Fractures in Patients With Locally Advanced Nonmetastatic Prostate Cancer Undergoing Radiation Therapy and Hormone Therapy
A Phase 3 study testing Calcium, Zoledronic acid and radiation therapy in people with Osteoporosis and Prostate Cancer, run by Radiation Therapy Oncology Group at 88 sites in 2 countries.
Trial summary
RATIONALE: Zoledronate may prevent bone loss in patients with prostate cancer undergoing radiation therapy and hormone therapy. It is not yet known whether zoledronate is more effective than calcium and vitamin D alone in preventing osteoporosis and bone fractures in patients with prostate cancer. Read more about this study
- Who is it for?
- Ages 18 years and older, men only
- Conditions the study is for
- Osteoporosis, Prostate Cancer
- What is being tested?
- Calcium, Zoledronic acid and radiation therapy
- Type of treatment
- Pill or oral medicine, Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 109 participants
- Where
- 88 sitesin 2 countries
- Study dates
- Mar 2006to Nov 2014
- Phase
- Phase 3
- 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
- Men only
- No healthy volunteers
- Adult, Older adult
Eligibility criteria:
- Pathologically (histologically or cytologically) proven diagnosis of adenocarcinoma of the prostate within 12 months of registration;
- Any one of the following clinical stages:
- T3 disease, any N stage, M0 with any Gleason score and any prostate-specific antigen (PSA); < T3 stage, any N stage, M0 with Gleason's score ≥ 8 and any PSA; < T3 stage, any N stage, M0 with Gleason's score 7 and PSA ≥ 15 nanograms/ml; < T3 stage, any N stage, M0 with Gleason score < 7 and PSA ≥ 20 nanograms/ml.
- A negative bone scan for metastatic disease;
- It is mandatory that the treating physician determine the planned duration of LHRH therapy prior to the site registering the patient (minimum 1 year of therapy); If patient is receiving pre-treatment LHRH therapy, it must have begun ≤ 6 months prior to registration. If pelvic radiation therapy (RT) has started, it must have begun ≤ 8 weeks prior to registration;
- Appropriate stage for protocol entry, including no distant metastases, based upon the following minimum diagnostic workup to be done within 16 weeks prior to registration:
- History/physical examination;
- Dental evaluation, including history of dental surgery (e.g., extraction or implant);
- Bone scan;
- T and L spine films;
- DXA scan: To be eligible the patient must have a scan on Lunar, Hologic, or Norland equipment only and the T scores in both the L spine and total hip must be > negative 2.5;
- Zubrod Performance Status 0-1 within 16 weeks prior to registration; (8/16/07)
- Age ≥ 18;
- Serum creatinine within 4 weeks prior to registration (8/16/07)
- Corrected serum calcium ≥ 8.4 and ≤ 10.6 mg/dl within 8 weeks prior to registration; note: for patients with an albumin of 4.0, corrected calcium=measured calcium. The formula for corrected calcium if serum albumin value is above or below 4.0 is as follows: Corrected calcium (mg/dl) = (4 - [patient's albumin (g/dl)] x 0.8) + patient's measured calcium (mg/dl)
- Patients who are sexually active must be willing/able to use medically acceptable forms of contraception, as the treatment involved in this study may be significantly teratogenic.
- Patient agrees to refrain from using all products listed in Section 9.2, "Non-permitted Supportive Therapy";
- Post-prostatectomy patients are eligible.
- Patient must sign study specific informed consent prior to study entry.
Ineligibility criteria:
- Prior invasive malignancy (except non-melanomatous skin cancer) unless disease free for a minimum of 3 years; e.g., carcinoma in situ of the breast or oral cavity are permissible;
- Patients with baseline T scores of ≤ -2.5 are excluded.
- Patients with baseline calculated creatinine clearance < 30 mL/min (estimated by Cockcroft-Gault formula below) are excluded. creatinine clearance male = [(140 - age) x (wt in kg)] / [(serum creatinine) x (72)]
- Prior bisphosphonate therapy;
- Prior pelvic radiation (other than for current prostate cancer) or prior systemic radiotherapeutic agents, such as strontium or samarium;
- Patients receiving systemic chemotherapy, steroids, growth hormones, or calcitonin;
- Patients with a history of Paget's disease or with uncontrolled thyroid or parathyroid dysfunction or with other diseases that influence bone metabolism;
- Known hypersensitivity to zoledronic acid or other bisphosphonates;
- Active dental problems at study entry, including infection of the teeth or jawbone; dental or fixture trauma; or a current or prior diagnosis of osteonecrosis of the jaw, exposed bone in the mouth, or slow healing after dental procedures;
- Recent or planned
Trial locations and contacts
88 sites in 2 countries.
88 sites in 2 countries
United States80 sites
Rosenfeld Cancer Center at Abington Memorial Hospital
Abington, Pennsylvania, 19001
McDowell Cancer Center at Akron General Medical Center
Akron, Ohio, 44307
Summa Center for Cancer Care at Akron City Hospital
Akron, Ohio, 44309-2090
Saint Anthony's Hospital at Saint Anthony's Health Center
Alton, Illinois, 62002
Theda Care Cancer Institute
Appleton, Wisconsin, 54911
Northwest Community Hospital
Arlington Heights, Illinois, 60005
Mission Hospitals - Memorial Campus
Asheville, North Carolina, 28801
St. Agnes Hospital Cancer Center
Baltimore, Maryland, 21229
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Baltimore, Maryland, 21231-2410
CCOP - Montana Cancer Consortium
Billings, Montana, 59101
Northern Rockies Radiation Oncology Center
Billings, Montana, 59101
Lourdes Regional Cancer Center
Binghamton, New York, 13905
Veterans Affairs Medical Center - Brooklyn
Brooklyn, New York, 11209
Bryn Mawr Hospital
Bryn Mawr, Pennsylvania, 19010
Roswell Park Cancer Institute
Buffalo, New York, 14263-0001
Cancer Institute of New Jersey at Cooper University Hospital - Camden
Camden, New Jersey, 08103
Southeast Missouri Regional Cancer Center at Southeast Missouri Hospital
Cape Girardeau, Missouri, 63701
Enloe Cancer Center at Enloe Medical Center
Chico, California, 95926
Charles M. Barrett Cancer Center at University Hospital
Cincinnati, Ohio, 45267
Penrose Cancer Center at Penrose Hospital
Colorado Springs, Colorado, 80933
Barbara Ann Karmanos Cancer Institute
Detroit, Michigan, 48201-1379
Josephine Ford Cancer Center at Henry Ford Hospital
Detroit, Michigan, 48202
CCOP - Hematology-Oncology Associates of Central New York
East Syracuse, New York, 13057
Northeast Georgia Medical Center
Gainesville, Georgia, 30501
Adams Cancer Center
Gettysburg, Pennsylvania, 17325
Wayne Radiation Oncology
Goldsboro, North Carolina, 27534
Center for Cancer Care at Goshen General Hospital
Goshen, Indiana, 46526
Great Falls Clinic - Main Facility
Great Falls, Montana, 59405
St. Vincent Hospital Regional Cancer Center
Green Bay, Wisconsin, 54307-3508
Ingalls Cancer Care Center at Ingalls Memorial Hospital
Harvey, Illinois, 60426
Methodist Cancer Center at Methodist Hospital
Indianapolis, Indiana, 46202
West Michigan Cancer Center
Kalamazoo, Michigan, 49007-3731
CCOP - Kansas City
Kansas City, Missouri, 64131
Kingsbury Center for Cancer Care at Cheshire Medical Center
Keene, New Hampshire, 03431
Christine LaGuardia Phillips Cancer Center at Wellmont Holston Valley Medical Center
Kingsport, Tennessee, 37662
University Medical Center of Southern Nevada
Las Vegas, Nevada, 89102
CCOP - Nevada Cancer Research Foundation
Las Vegas, Nevada, 89106
Norris Cotton Cancer Center at Dartmouth-Hitchcock Medical Center
Lebanon, New Hampshire, 03756-0002
Lucille P. Markey Cancer Center at University of Kentucky
Lexington, Kentucky, 40536-0093
USC/Norris Comprehensive Cancer Center and Hospital
Los Angeles, California, 90089-9181
Bay Area Cancer Care Center at Bay Area Medical Center
Marinette, Wisconsin, 54143
Community Memorial Hospital Cancer Care Center
Menomonee Falls, Wisconsin, 53051
Vince Lombardi Cancer Clinic at Aurora St. Luke's Medical Center
Milwaukee, Wisconsin, 53215
Medical College of Wisconsin Cancer Center
Milwaukee, Wisconsin, 53226
Veterans Affairs Medical Center - Milwaukee
Milwaukee, Wisconsin, 53295
Jon and Karen Huntsman Cancer Center at Intermountain Medical Center
Murray, Utah, 84157
Sentara Cancer Institute at Sentara Norfolk General Hospital
Norfolk, Virginia, 23507
Val and Ann Browning Cancer Center at McKay-Dee Hospital Center
Ogden, Utah, 84403
Saint James Hospital and Health Centers Comprehensive Cancer Institute - Olympia Fields
Olympia Fields, Illinois, 60461
Cancer Center of Paoli Memorial Hospital
Paoli, Pennsylvania, 19301-1792
Fox Chase Cancer Center - Philadelphia
Philadelphia, Pennsylvania, 19111-2497
Robert and Beverly Lewis Family Cancer Care Center at Pomona Valley Hospital Medical Center
Pomona, California, 91767
Naval Medical Center - Portsmouth
Portsmouth, Virginia, 23708-2197
Utah Valley Regional Medical Center - Provo
Provo, Utah, 84604
St. Mary - Corwin Regional Medical Center
Pueblo, Colorado, 81004
Cancer Centers of North Carolina - Raleigh
Raleigh, North Carolina, 27607
Renown Institute for Cancer at Renown Regional Medical Center
Reno, Nevada, 89502
Radiation Oncology Center - Roseville
Roseville, California, 95661
Radiological Associates of Sacramento Medical Group, Incorporated
Sacramento, California, 95815
CentraCare Clinic - River Campus
Saint Cloud, Minnesota, 56303
Coborn Cancer Center
Saint Cloud, Minnesota, 56303
Norris Cotton Cancer Center - North
Saint Johnsbury, Vermont, 05819
Cancer Research UK Medical Oncology Unit at Churchill Hospital & Weatherall Institute of Molecular Medicine - Oxford
Salem, Ohio, 44460
LDS Hospital
Salt Lake City, Utah, 84143
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 - Saint Louis
St Louis, Missouri, 63110
CCOP - St. Louis-Cape Girardeau
St Louis, Missouri, 63141
David C. Pratt Cancer Center at St. John's Mercy
St Louis, Missouri, 63141
Dixie Regional Medical Center - East Campus
St. George, Utah, 84770
CCOP - Carle Cancer Center
Urbana, Illinois, 61801
Franklin & Edith Scarpa Regional Cancer Center at South Jersey Healthcare
Vineland, New Jersey, 08360
Cancer Institute of New Jersey at Cooper - Voorhees
Voorhees Township, New Jersey, 08043
West Allis Memorial Hospital
West Allis, Wisconsin, 53227
Precision Radiotherapy at University Pointe
West Chester, Ohio, 45069
Wilmed Radiation Oncology Services
Wilson, North Carolina, 27893
Cancer Treatment Center
Wooster, Ohio, 44691
Lankenau Cancer Center at Lankenau Hospital
Wynnewood, Pennsylvania, 19096
North Star Lodge Cancer Center at Yakima Valley Memorial Hospital
Yakima, Washington, 98902
York Cancer Center at Apple Hill Medical Center
York, Pennsylvania, 17405
Canada8 sites
Margaret and Charles Juravinski Cancer Centre
Hamilton, Ontario, L8V 5C2
Maisonneuve-Rosemont Hospital
Montreal, Quebec, H1T 2M4
Centre Hospitalier Universitaire de Quebec
Québec, Quebec, G1R 2J6
Allan Blair Cancer Centre at Pasqua Hospital
Regina, Saskatchewan, S4T 7T1
CHUS-Hopital Fleurimont
Sherbrooke, Quebec, J1H 5N4
Doctor H. Bliss Murphy Cancer Centre
St. John's, Newfoundland and Labrador, A1B 3V6
Cancer Care Program at Thunder Bay Regional Health Sciences
Thunder Bay, Ontario, P7B 6V4
British Columbia Cancer Agency - Vancouver Island Centre
Victoria, British Columbia, V8R 6V5
About this study
Official title: A Phase III Randomized Study to Evaluate the Efficacy of Zometa® for the Prevention of Osteoporosis and Associated Fractures in Patients Receiving Radiation Therapy and Long Term LHRH Agonists for High-Grade and/or Locally Advanced Prostate Cancer
RATIONALE: Zoledronate may prevent bone loss in patients with prostate cancer undergoing radiation therapy and hormone therapy. It is not yet known whether zoledronate is more effective than calcium and vitamin D alone in preventing osteoporosis and bone fractures in patients with prostate cancer.
PURPOSE: This randomized phase III trial is studying zoledronate to see how well it works compared to calcium and vitamin D alone in preventing osteoporosis and bone fractures in patients with locally advanced nonmetastatic prostate cancer undergoing radiation therapy and hormone therapy.
Read the detailed description
OBJECTIVES:
Primary
- Compare the potential benefit of bisphosphonate therapy comprising zoledronate plus vitamin D and calcium supplement vs standard therapy with vitamin D and calcium supplement in the prevention of osteoporosis and associated bone fractures in patients with locally advanced nonmetastatic adenocarcinoma of the prostate undergoing radiotherapy and luteinizing hormone-releasing hormone (LHRH) agonist therapy.
Secondary
- Evaluate the potential benefit of these regimens on quality of life in these patients.
- Evaluate the potential benefit in bone mineral density over a period of 3 years for patients treated with these regimens.
OUTLINE: This is randomized multicenter study. Patients are stratified according to T score of the hip by dual x-ray absorptiometry (DXA) scan (< -1.0 but > -2.5 vs ≥ - 1.0) and planned duration of luteinizing hormone-releasing hormone (LHRH) agonist therapy (1-2½ years vs > 2½ years). Patients are randomized to 1 of 2 treatment arms.
Quality of life is assessed at baseline and every 6 months during treatment.
- Conditions
- Osteoporosis, Prostate Cancer
- Being tested
- Calcium, Zoledronic acid, radiation therapy, LHRH, Vitamin D
- Keywords
- osteoporosis, adenocarcinoma of the prostate, stage IIB prostate cancer, stage IIA prostate cancer, stage III prostate cancer, stage IV prostate cancer
- Medical subject headings
- Osteoporosis, Prostatic Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CalciumDietary supplement
A single dose of 500 mg of elemental calcium orally each day for 3 years.
Zoledronic acidDietary supplement
Also called Zometa, zoledronate
Patients receive IV over 15 minutes once every 6 months for 3 years. The goal dose of zoledronic acid is 4 mg, but the selection of dose is determined based on calculated creatinine clearance at baseline.
radiation therapyRadiation
Patients must receive external beam irradiation, brachytherapy (HDR or LDR), or a combination of external beam irradiation and brachytherapy at the discretion of the treating physician. Dose/duration also will be at the discretion of the treating physician; however, dose will not exceed 45 Gy to 100% of the proximal femur, and no proximal femur will receive ≥ 60 Gy.
LHRHDrug
LHRH therapy must take place for a minimum of one year. Choice of LHRH agonist, dose, and duration are at the discretion of the treating physician.
Vitamin DDietary supplement
400 IU (10μg), orally each day for 3 years.
| Study group | Role | What they receive |
|---|---|---|
| Zoledronic Acid | Experimental | Zoledronic acid q 6 months plus Vitamin D and calcium supplement for 3 years in addition to concurrent radiation therapy and LHRH therapy. Receives: Dietary Supplement: Calcium; Dietary Supplement: Zoledronic acid; Radiation: radiation therapy; Drug: LHRH; Dietary Supplement: Vitamin D |
| Control | Active comparator | Vitamin D and calcium supplement everyday for 3 years in addition to concurrent radiation therapy and LHRH therapy. Receives: Dietary Supplement: Calcium; Radiation: radiation therapy; Drug: LHRH; Dietary Supplement: Vitamin D |
What is being measured
The primary outcome is the main question the study is designed to answer.
Freedom From Any Bone Fracture (FABF) Rate at Three Years
The time of failure was measured from the date of randomization to the date of documented bone fractures, defined as any fracture of the bone. The three-year FABF rate will be estimated by the Kaplan-Meier method.
Measured: From randomization to 3 years
Secondary outcomes (3)
Percent Change in Bone Mineral Density at 3 Years
Bone mineral density (BMD) was measured by DXA scan (Dual X-ray absorptiometry) for five locations: lumbar, right total hip, left total hip, right femoral neck, and left femoral neck. The percent change at 3 years was calculated for each location by the following formula: Percent Change BMD = (BMD_3 years - BMD_Baseline)/ BMD_Baseline * 100.
Measured: Baseline, 3 years from start of treatment
Changes in the Functional Assessment of Cancer Therapy-General (FACT-G) at 3 Years
The FACT-G is a validated, 27-item measure. In addition to a total QOL score, subscale scores for physical, functional, social and emotional well-being are produced. There are 5 responses options, with 0=Not a lot and 4=Very much. All items in a subscale are added together, multiplied by the number of items in the subscale, then divided by the number of items answered to obtain subscale totals. Scores range from 0-108 for the FACT-G total score, 0-28 for the physical, social and functional subscales, and 0-24 for the emotional subscale. Certain items, identified on the FACT-G scoring guides, must be reversed before it is added by subtracting the response from 4. All subscale totals are added together to form the FACT-G total score. Each subscale requires at least 50% of the items to be completed while the overall response rate must be greater than 80%. If items are missing, the subscale scores can be prorated. A higher score indicates better QOL.
Measured: Baseline, 3 years from start of treatment
Utility of the Use of Bisphosphonates as Assessed by Quality-adjusted Survival
The EQ-5D is a standardized instrument for measuring generic health status used to generate health utilities, used to derive quality adjusted survival. Quality adjusted survival is computed using the weighted sum of times in different health states added up to a total quality-adjusted survival time. The log-rank test is used to compare quality-adjusted survivals between the treatment arms.
Measured: From pre-treatment to 3 years from start of treatment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 May 2006 (estimated)
- Study startMar 2006
- Primary completionNov 2014
- Study completionNov 2014
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 OsteoporosisStudies 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 3
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 109 participants (actual)
Sponsor and investigators
- Lead sponsor
- Radiation Therapy Oncology Group
- Sponsor type
- Research network
- Collaborators
- National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Colleen A. Lawton, MD, Principal investigator, Medical College of WisconsinMatthew R. Smith, MD, Study chair, Massachusetts General HospitalMargaret Chamberlain-Wilmoth, PhD, MSS, RN, Study chair, Carolinas Medical Center - University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00329797
- Sponsor's protocol ID
- RTOG 0518
- Other IDs
- CDR0000476469, NCI-2009-00884
- Status last verified
- Oct 2017
- First submitted
- 23 May 2006
- Last updated
- 29 Nov 2017
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 29 Nov 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase III Randomized Study to Evaluate the Efficacy of Zometa® for the Prevention of Osteoporosis and Associated Fractures in Patients Receiving Radiation Therapy and Long Term LHRH Agonists for High-Grade and/or Locally Advanced Prostate Cancer
- ClinicalTrials.gov ID
- NCT00329797
- Acronym / sponsor ID
- RTOG 0518
- Conditions
- Osteoporosis, Prostate Cancer
- Keywords
- osteoporosis, adenocarcinoma of the prostate, stage IIB prostate cancer, stage IIA prostate cancer, stage III prostate cancer, stage IV prostate cancer
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 109 participants (actual)
- Lead sponsor
- Radiation Therapy Oncology GroupResearch network
- Collaborators
- National Cancer Institute (NCI)
- Study start
- Mar 2006
- Primary completion
- Nov 2014 (actual)
- Study completion
- Nov 2014 (actual)
- First posted
- 25 May 2006 (estimated)
- Results
- Posted 29 Nov 2017
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
RATIONALE: Zoledronate may prevent bone loss in patients with prostate cancer undergoing radiation therapy and hormone therapy. It is not yet known whether zoledronate is more effective than calcium and vitamin D alone in preventing osteoporosis and bone fractures in patients with prostate cancer.
PURPOSE: This randomized phase III trial is studying zoledronate to see how well it works compared to calcium and vitamin D alone in preventing osteoporosis and bone fractures in patients with locally advanced nonmetastatic prostate cancer undergoing radiation therapy and hormone therapy.
Detailed description
OBJECTIVES:
Primary
- Compare the potential benefit of bisphosphonate therapy comprising zoledronate plus vitamin D and calcium supplement vs standard therapy with vitamin D and calcium supplement in the prevention of osteoporosis and associated bone fractures in patients with locally advanced nonmetastatic adenocarcinoma of the prostate undergoing radiotherapy and luteinizing hormone-releasing hormone (LHRH) agonist therapy.
Secondary
- Evaluate the potential benefit of these regimens on quality of life in these patients.
- Evaluate the potential benefit in bone mineral density over a period of 3 years for patients treated with these regimens.
OUTLINE: This is randomized multicenter study. Patients are stratified according to T score of the hip by dual x-ray absorptiometry (DXA) scan (< -1.0 but > -2.5 vs ≥ - 1.0) and planned duration of luteinizing hormone-releasing hormone (LHRH) agonist therapy (1-2½ years vs > 2½ years). Patients are randomized to 1 of 2 treatment arms.
Quality of life is assessed at baseline and every 6 months during treatment.
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 | Experimental | Dietary Supplement: Calcium, Dietary Supplement: Zoledronic acid, Radiation: radiation therapy, Drug: LHRH, Dietary Supplement: Vitamin DZoledronic acid q 6 months plus Vitamin D and calcium supplement for 3 years in addition to concurrent radiation therapy and LHRH therapy. |
| Control | Active comparator | Dietary Supplement: Calcium, Radiation: radiation therapy, Drug: LHRH, Dietary Supplement: Vitamin DVitamin D and calcium supplement everyday for 3 years in addition to concurrent radiation therapy and LHRH therapy. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male 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 |
|---|---|---|
| CalciumA single dose of 500 mg of elemental calcium orally each day for 3 years. | Dietary supplement | Control, Zoledronic Acid |
| Zoledronic acidAlso: Zometa, zoledronatePatients receive IV over 15 minutes once every 6 months for 3 years. The goal dose of zoledronic acid is 4 mg, but the selection of dose is determined based on calculated creatinine clearance at baseline. | Dietary supplement | Zoledronic Acid |
| radiation therapyPatients must receive external beam irradiation, brachytherapy (HDR or LDR), or a combination of external beam irradiation and brachytherapy at the discretion of the treating physician. Dose/duration also will be at the discretion of the treating physician; however, dose will not exceed 45 Gy to 100% of the proximal femur, and no proximal femur will receive ≥ 60 Gy. | Radiation | Control, Zoledronic Acid |
| LHRHLHRH therapy must take place for a minimum of one year. Choice of LHRH agonist, dose, and duration are at the discretion of the treating physician. | Drug | Control, Zoledronic Acid |
| Vitamin D400 IU (10μg), orally each day for 3 years. | Dietary supplement | Control, Zoledronic Acid |
Primary outcome
Freedom From Any Bone Fracture (FABF) Rate at Three Years
Time frame: From randomization to 3 years
The time of failure was measured from the date of randomization to the date of documented bone fractures, defined as any fracture of the bone. The three-year FABF rate will be estimated by the Kaplan-Meier method.
3 secondary outcomes
Percent Change in Bone Mineral Density at 3 Years
Time frame: Baseline, 3 years from start of treatment
Changes in the Functional Assessment of Cancer Therapy-General (FACT-G) at 3 Years
Time frame: Baseline, 3 years from start of treatment
Utility of the Use of Bisphosphonates as Assessed by Quality-adjusted Survival
Time frame: From pre-treatment to 3 years from start of treatment
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Nov 2017.
- 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.
Colleen A. Lawton, MD principal investigator
Medical College of Wisconsin
Matthew R. Smith, MD study chair
Massachusetts General Hospital
Margaret Chamberlain-Wilmoth, PhD, MSS, RN study chair
Carolinas Medical Center - University
88 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Calcium, Zoledronic acid and radiation therapy in people with Osteoporosis and Prostate Cancer, run by Radiation Therapy Oncology Group at 88 sites in 2 countries.
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 29 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 88 sites in United States, Canada. 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?
Yes. Results are posted in the registry (first posted 29 Nov 2017). 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?
Freedom From Any Bone Fracture (FABF) Rate at Three Years (time frame: From randomization to 3 years). 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 29 Nov 2017.