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Effectiveness of DiscontinuinG bisphosphonatEs Study: R21 Pilot Study

Effectiveness of DiscontinuinG bisphosphonatEs Study: R21 Pilot Study

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02139007
Acronym
EDGE
Enrollment
27
Registered
2014-05-15
Start date
2014-06-30
Completion date
2016-07-31
Last updated
2017-05-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoporosis

Brief summary

This is a pilot study evaluating the recruitment strategies for sites and patients, data collection instruments, follow-up procedures, administrative processes, and the proposed management strategy for the future large scale national trial.

Interventions

DRUGAlendronate

Sponsors

University of Alabama at Birmingham
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
65 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

1.Females 65+ 2.3+ years of alendronate (Fosamax/Binosto) use 3\. Valid social security number

Exclusion criteria

1. History of any other metabolic bone condition, such as Paget Disease of Bone 2. Currently receiving treatment for ongoing cancer, excluding non-melanoma skin cancer. 3. Has significant underlying illness that would be expected to prevent completion of the study (e.g., life-threatening disease likely to limit survival to less than 3 years)? 4. HIV positive 5. Involved in a conflicting (investigational drug) clinical trial

Design outcomes

Primary

MeasureTime frameDescription
All Study Sites--Length of Contracting ProceduresLength of time Between Clinical Site Recruitment and Contract ExecutionMean time Between Clinical Site Recruitment and Contract Execution
All Study Sites--Length of Time to Site IRB ApprovalLength of time to site IRB approvalMean time to gain site IRB approval
All Study Sites-Length of Time to 1st Participant EnrolledLength of time t for sites to recruit/enroll 1st participantMean time from study initiation to 1st participant enrolled.

Secondary

MeasureTime frameDescription
Clinical Fracture RateBaseline to 6 months following enrollmentPatient reported fracture rate at 6 months following enrollment via survey.
Atypical Femoral FractureBaseline to 6 months following enrollmentPatient reported fracture rate at 6 months after enrollment via follow-up survey
Osteonecrosis of the JawBaseline to 6 months following enrollmentPatients self report diagnoses of osteonecrosis of the jaw 6 months post enrollment via follow-up survey .

Countries

United States

Participant flow

Recruitment details

Sites were selected from 2 practice based research networks based upon self-reporting having a large number of women ≥ 65 years of age with a current alendronate prescription. Enrolled patient participants were randomized to continue or discontinue their current prescription. No drug was provided.

Pre-assignment details

Period 1 refers to the study site recruitment period for the 9 sites that participated in the study. Period 2 refers to the patient recruitment period for the study. Randomization to treatment assignment was at the patient level. Sites recruited patient participants to both arms of the study. Two sites failed to enroll participants in either arm.

Participants by arm

ArmCount
Continuation Arm
Alendronate continuation arm
13
Discontinuation Arm
Alendronate discontinuation arm
14
Total27

Baseline characteristics

CharacteristicContinuation ArmDiscontinuation ArmTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
13 Participants14 Participants27 Participants
Age, Categorical
Between 18 and 65 years
0 Participants0 Participants0 Participants
Age, Continuous74.4 Years
STANDARD_DEVIATION 6.7
74.5 Years
STANDARD_DEVIATION 5.9
74.5 Years
STANDARD_DEVIATION 6.1
Duration of Alendronate Use4.8 Years
STANDARD_DEVIATION 2.1
5.3 Years
STANDARD_DEVIATION 3.1
5.1 Years
STANDARD_DEVIATION 17
Previous History of Fracture5 Participants5 Participants10 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants3 Participants5 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants2 Participants3 Participants
Race (NIH/OMB)
White
10 Participants9 Participants19 Participants
Region of Enrollment
United States
13 participants14 participants27 participants
Sex: Female, Male
Female
13 Participants14 Participants27 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 110 / 13
other
Total, other adverse events
0 / 110 / 13
serious
Total, serious adverse events
0 / 110 / 13

Outcome results

Primary

All Study Sites--Length of Contracting Procedures

Mean time Between Clinical Site Recruitment and Contract Execution

Time frame: Length of time Between Clinical Site Recruitment and Contract Execution

Population: Nine sites from six states (AL, CO, NM, CT, CA, and PA) participated in this pilot study.

ArmMeasureValue (MEAN)Dispersion
All Study Sites -- Contracting ProceduresAll Study Sites--Length of Contracting Procedures3.4 MonthsStandard Deviation 2.3
Primary

All Study Sites-Length of Time to 1st Participant Enrolled

Mean time from study initiation to 1st participant enrolled.

Time frame: Length of time t for sites to recruit/enroll 1st participant

Population: For sites enrolling at least one patient, the average (SD) time from contract execution to the first patient recruited.

ArmMeasureValue (MEAN)Dispersion
All Study Sites -- Contracting ProceduresAll Study Sites-Length of Time to 1st Participant Enrolled5.0 MonthsStandard Deviation 3
Primary

All Study Sites--Length of Time to Site IRB Approval

Mean time to gain site IRB approval

Time frame: Length of time to site IRB approval

ArmMeasureValue (MEAN)Dispersion
All Study Sites -- Contracting ProceduresAll Study Sites--Length of Time to Site IRB Approval13.9 DaysStandard Deviation 4.1
Secondary

Atypical Femoral Fracture

Patient reported fracture rate at 6 months after enrollment via follow-up survey

Time frame: Baseline to 6 months following enrollment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
All Study Sites -- Contracting ProceduresAtypical Femoral Fracture0 Participants
Discontinuation ArmAtypical Femoral Fracture0 Participants
Secondary

Clinical Fracture Rate

Patient reported fracture rate at 6 months following enrollment via survey.

Time frame: Baseline to 6 months following enrollment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
All Study Sites -- Contracting ProceduresClinical Fracture Rate0 Participants
Discontinuation ArmClinical Fracture Rate0 Participants
Secondary

Osteonecrosis of the Jaw

Patients self report diagnoses of osteonecrosis of the jaw 6 months post enrollment via follow-up survey .

Time frame: Baseline to 6 months following enrollment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
All Study Sites -- Contracting ProceduresOsteonecrosis of the Jaw0 Participants
Discontinuation ArmOsteonecrosis of the Jaw0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026