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Prophylactic Risedronate for Patients With Peripheral Lung Tumors Treated With SBRT

A Randomized Clinical Trial of Prophylactic Risedronate for Patients With Peripheral Lung Tumors Treated With SBRT

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03861091
Enrollment
84
Registered
2019-03-04
Start date
2019-07-12
Completion date
2022-03-02
Last updated
2026-08-03

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

Conditions

Lung Neoplasm

Brief summary

This is a double blind randomized controlled study investigating the efficacy of a single dose of 150 mg risedronate (a bone anti-resorptive) vs a single dose of placebo given prior to SBRT for peripheral lung tumors that are within 2 cm of the chest wall. Our hypothesis is that the use of a single dose of 150 mg risedronate will eliminate or greatly reduce the rapid bone loss that occurs with radiation induced early osteoclast recruitment/activation. Patients will be given either a single dose of 150 mg risedronate or placebo at the time of their treatment mapping "simulation" CT scan. Typically, radiation treatments begin at 1 - 3 weeks following this mapping scan, as each treatment plan requires detailed physics calculations and quality assurance checks. All CT imaging referenced below is performed as a routine standard of care surveillance and is necessary for cancer treatment follow-up. These chest CT scans that are utilized in this research protocol would be performed every 3 months regardless of inclusion on this trial.

Detailed description

2.1 Primary Objective(s) The primary objective is to assess the percent change in bone mean cortical thickness within regions of bone receiving 30 Gy or more at 3 months after SBRT. The % change in mean cortical thickness will be compared between patients who received risedronate and those who received placebo. 2.2 Secondary Objective(s) In addition to the primary objective, the investigators will further analyze the remaining routine follow-up chest CT scans, for mean cortical thickness change in regions of bone that received 0 - 10 Gy, \>10 - 20 Gy, \> 20 - 30 Gy, \> 30 - 40 Gy, and \> 40 Gy at all time points including 3 months, 6 months, 9 months, and 12 months. These scans are standard of care and would be performed regardless of inclusion on this trial. This will allow us to determine the potential persistence of effects from SBRT and bisphosphonate use. The investigators will assess and compare the incidence and grade (per modified CTCAE v.5) of radiation induced chest wall pain within the radiation treatment portal (within the 50% isodose line) at time of each routine follow up visit (3 months, 6 months, 9 months, and 12 months post SBRT). The purpose of utilizing a placebo and double-blind design is that chest wall pain is a subjective finding. Furthermore, it is unclear if chest wall pain from radiation is directly due to bone damage, nerve damage, muscle irritation, or a combination of all of these factors. The use of placebo will help us reduce the potential for bias in pain assessment. The investigators will assess and compare the incidence of rib and vertebral fractures (as noted on CT imaging) that occur within 12 months of irradiation and are within the radiation treatment field. The radiation treatment field will be defined as within the 50% isodose line. The urine concentration of an osteoclast-specific biomarker, urinary N-telopeptide (NTX) indicating osteoclast activity will be assessed prior to SBRT and at each routine follow up visit (at 3 months, 6 months, 9 months, and 12 months post SBRT).

Interventions

DRUGrisedronate

Risedronate 150 mg Oral Given once 7 - 21 days prior to initiation of SBRT

DRUGMatching placebo

Dose not applicable, given once 7-21 days prior to initiation of SBRT

Sponsors

Wake Forest University Health Sciences
Lead SponsorOTHER
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients must be 18 years or older, but there is no upper limit on age of inclusion. * Patients must have a peripheral lung tumor that is amenable to SBRT as determined by the treating radiation oncologist. To be classified as a peripheral lung tumor, the tumor edge (the edge of the gross tumor volume or GTV in radiation treatment planning software) must be within 2 cm of the chest wall. This is determined by the treating radiation oncologist. The chest wall is defined as the chest wall musculature or ribs/vertebrae immediately adjacent to the lungs. * Patients must have ECOG status of 0-3 * Patients must have a life expectancy of at least 3 months as determined by the treating radiation oncologist. * Patients must have the ability to understand and the willingness to sign an IRB-approved informed consent document.

Exclusion criteria

Prior radiation to any part of the body including the lungs or thorax is not an

Design outcomes

Primary

MeasureTime frameDescription
Changes in Mean Cortical ThicknessAt baseline and at 3 months post radiationThe primary outcome measure is the percent change in mean cortical thickness (C.Th) of bones receiving 30 Gy or more at 3 months post SBRT, when compared to pre-SBRT cortical thickness

Secondary

MeasureTime frameDescription
4 Time Points Assessing Change in Mean Cortical Thickness of BonesAt baseline, 3 months, 6 months, 9 months and 12 months post radiationThe percent change in mean C.Th of bones will be assessed in regions of bone that received 0 - 10 Gy, \>10 - 20 Gy, \> 20 - 30 Gy, \> 30 - 40 Gy, and \> 40 Gy at all time points including 3 months, 6 months, 9 months, and 12 months.
Number of Participants With Chest Wall PainAt baseline, 3 months, 6 months, 9 months and 12 months post radiationChest wall pain incidence and grade will be collected as per modified CTCAE v. 5 within the within the 50% isodose line. Appendix K. Below we report numbers with any chest wall pain of grades 3+ over the year of followup.
Number of Participants With Rib and Vertebral FractureAt 12 months post radiationIncidence of rib and vertebral fractures (as noted on CT imaging) that occur within 12 months of irradiation and are within the within 50% isodose line.
Urine Concentration at 4 Time PointsAt 3 months, 6 months, 9 months and 12 months post radiationThe urine concentration of an osteoclast-specific biomarker, urinary N-telopeptide (U-NTX) indicating osteoclastic activity will be assessed prior to SBRT and at each routine follow up visit (at 3 months, 6 months, 9 months, and 12 months post SBRT).

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORMichael Farris, MD

Wake Forest University Health Sciences

Participant flow

Participants by arm

ArmCount
Risedronate
Risedronate 150 mg given once 7-21 days prior to initiation of SBRT risedronate: Risedronate 150 mg Oral Given once 7 - 21 days prior to initiation of SBRT
41
Matching Placebo
Matching placebo, dose not applicable given once 7-21 days prior to initiation of SBRT Matching placebo: Dose not applicable, given once 7-21 days prior to initiation of SBRT
43
Total84

Baseline characteristics

CharacteristicRisedronateTotalMatching Placebo
Age, Continuous71.4 years
STANDARD_DEVIATION 7.9
71.2 years
STANDARD_DEVIATION 7.6
71.1 years
STANDARD_DEVIATION 7.3
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
39 Participants82 Participants43 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 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
3 Participants6 Participants3 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 Participants1 Participants
Race (NIH/OMB)
White
37 Participants76 Participants39 Participants
Region of Enrollment
United States
41 participants84 participants43 participants
Sex: Female, Male
Female
16 Participants34 Participants18 Participants
Sex: Female, Male
Male
25 Participants50 Participants25 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 411 / 43
other
Total, other adverse events
5 / 410 / 43
serious
Total, serious adverse events
0 / 412 / 43

Outcome results

Primary

Changes in Mean Cortical Thickness

The primary outcome measure is the percent change in mean cortical thickness (C.Th) of bones receiving 30 Gy or more at 3 months post SBRT, when compared to pre-SBRT cortical thickness

Time frame: At baseline and at 3 months post radiation

Population: A small number of participants who were enrolled were not able to have cortical thickness determined at 3 months.

ArmMeasureValue (MEAN)Dispersion
RisedronateChanges in Mean Cortical Thickness4.24 percent change in mm cortical thickneStandard Error 3.04
Matching PlaceboChanges in Mean Cortical Thickness7.14 percent change in mm cortical thickneStandard Error 2.93
Secondary

4 Time Points Assessing Change in Mean Cortical Thickness of Bones

The percent change in mean C.Th of bones will be assessed in regions of bone that received 0 - 10 Gy, \>10 - 20 Gy, \> 20 - 30 Gy, \> 30 - 40 Gy, and \> 40 Gy at all time points including 3 months, 6 months, 9 months, and 12 months.

Time frame: At baseline, 3 months, 6 months, 9 months and 12 months post radiation

Population: A small number of participants did not have follow-up cortical thickness measures.

ArmMeasureGroupValue (MEAN)Dispersion
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 10-20 Gy--time 9mo to bl7.71 percent change in mm cortical thicknessStandard Error 2.95
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region <10 Gy--time 6mo to bl10.37 percent change in mm cortical thicknessStandard Error 2.63
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region <10 Gy--time 9mo to bl12.10 percent change in mm cortical thicknessStandard Error 2.71
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region <10 Gy--time 12mo to bl11.58 percent change in mm cortical thicknessStandard Error 2.89
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 10-20 Gy--time 3mo to bl9.27 percent change in mm cortical thicknessStandard Error 2.78
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 10-20 Gy--time 6mo to bl6.24 percent change in mm cortical thicknessStandard Error 2.86
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region <10 Gy--time 3mo to bl13.04 percent change in mm cortical thicknessStandard Error 2.56
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 10-20 Gy--time 12mo to bl10.11 percent change in mm cortical thicknessStandard Error 3.14
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 20-30 Gy--time 3mo to bl8.40 percent change in mm cortical thicknessStandard Error 2.99
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 20-30 Gy--time 6mo to bl5.41 percent change in mm cortical thicknessStandard Error 3.08
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 20-30 Gy--time 9mo to bl6.48 percent change in mm cortical thicknessStandard Error 3.18
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 20-30 Gy--time12mo to bl7.42 percent change in mm cortical thicknessStandard Error 3.36
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 30-40 Gy--time 3mo to bl4.90 percent change in mm cortical thicknessStandard Error 3.22
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 30-40 Gy--time 6mo to bl1.98 percent change in mm cortical thicknessStandard Error 3.31
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 30-40 Gy--time 9mo to bl3.70 percent change in mm cortical thicknessStandard Error 3.43
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 30-40 Gy--time12mo to bl2.23 percent change in mm cortical thicknessStandard Error 3.62
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >30 Gy--time 3mo to bl4.24 percent change in mm cortical thicknessStandard Error 3.04
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >30 Gy--time 6mo to bl1.66 percent change in mm cortical thicknessStandard Error 3.13
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >30 Gy--time 9mo to bl2.12 percent change in mm cortical thicknessStandard Error 3.24
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >30 Gy--time 12mo to bl-0.42 percent change in mm cortical thicknessStandard Error 3.42
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >40 Gy--time 3mo to bl5.83 percent change in mm cortical thicknessStandard Error 8.1
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >40 Gy--time 6mo to bl5.62 percent change in mm cortical thicknessStandard Error 8.41
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >40 Gy--time 9mo to bl6.03 percent change in mm cortical thicknessStandard Error 8.53
Risedronate4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >40 Gy--time 12mo to bl-1.44 percent change in mm cortical thicknessStandard Error 8.92
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >40 Gy--time 9mo to bl21.37 percent change in mm cortical thicknessStandard Error 7.69
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region <10 Gy--time 3mo to bl5.57 percent change in mm cortical thicknessStandard Error 2.5
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 30-40 Gy--time 3mo to bl5.20 percent change in mm cortical thicknessStandard Error 3.1
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region <10 Gy--time 6mo to bl5.76 percent change in mm cortical thicknessStandard Error 2.57
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >30 Gy--time 9mo to bl10.32 percent change in mm cortical thicknessStandard Error 3.02
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region <10 Gy--time 9mo to bl8.07 percent change in mm cortical thicknessStandard Error 2.59
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 30-40 Gy--time 6mo to bl3.21 percent change in mm cortical thicknessStandard Error 3.19
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region <10 Gy--time 12mo to bl9.42 percent change in mm cortical thicknessStandard Error 2.7
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >40 Gy--time 6mo to bl20.30 percent change in mm cortical thicknessStandard Error 7.68
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 10-20 Gy--time 3mo to bl4.97 percent change in mm cortical thicknessStandard Error 2.72
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 30-40 Gy--time 9mo to bl9.64 percent change in mm cortical thicknessStandard Error 3.19
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 10-20 Gy--time 6mo to bl3.95 percent change in mm cortical thicknessStandard Error 2.82
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >30 Gy--time 12mo to bl11.72 percent change in mm cortical thicknessStandard Error 3.14
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 10-20 Gy--time 9mo to bl5.65 percent change in mm cortical thicknessStandard Error 2.82
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 30-40 Gy--time12mo to bl11.77 percent change in mm cortical thicknessStandard Error 3.32
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 10-20 Gy--time 12mo to bl7.30 percent change in mm cortical thicknessStandard Error 2.94
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >40 Gy--time 12mo to bl17.17 percent change in mm cortical thicknessStandard Error 8.25
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 20-30 Gy--time 3mo to bl3.70 percent change in mm cortical thicknessStandard Error 2.87
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >30 Gy--time 3mo to bl7.14 percent change in mm cortical thicknessStandard Error 2.93
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 20-30 Gy--time 6mo to bl0.10 percent change in mm cortical thicknessStandard Error 2.95
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >40 Gy--time 3mo to bl12.82 percent change in mm cortical thicknessStandard Error 7.53
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 20-30 Gy--time 9mo to bl4.94 percent change in mm cortical thicknessStandard Error 2.95
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region >30 Gy--time 6mo to bl6.11 percent change in mm cortical thicknessStandard Error 3.01
Matching Placebo4 Time Points Assessing Change in Mean Cortical Thickness of Bones% change cort thickness in region 20-30 Gy--time12mo to bl7.23 percent change in mm cortical thicknessStandard Error 3.08
Secondary

Number of Participants With Chest Wall Pain

Chest wall pain incidence and grade will be collected as per modified CTCAE v. 5 within the within the 50% isodose line. Appendix K. Below we report numbers with any chest wall pain of grades 3+ over the year of followup.

Time frame: At baseline, 3 months, 6 months, 9 months and 12 months post radiation

Population: Some participants did not have sufficient self-reported symptom pain data to determine if, over course of 12 months, they had any chest wall pain of grade 3 or higher

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
RisedronateNumber of Participants With Chest Wall Pain2 Participants
Matching PlaceboNumber of Participants With Chest Wall Pain4 Participants
Secondary

Number of Participants With Rib and Vertebral Fracture

Incidence of rib and vertebral fractures (as noted on CT imaging) that occur within 12 months of irradiation and are within the within 50% isodose line.

Time frame: At 12 months post radiation

Population: For a small number of participants it was not possible to determine clearly if a fracture had occurred within 12 months.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
RisedronateNumber of Participants With Rib and Vertebral Fracture15 Participants
Matching PlaceboNumber of Participants With Rib and Vertebral Fracture11 Participants
Secondary

Urine Concentration at 4 Time Points

The urine concentration of an osteoclast-specific biomarker, urinary N-telopeptide (U-NTX) indicating osteoclastic activity will be assessed prior to SBRT and at each routine follow up visit (at 3 months, 6 months, 9 months, and 12 months post SBRT).

Time frame: At 3 months, 6 months, 9 months and 12 months post radiation

Population: A small number of participants did not have urine samples analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
RisedronateUrine Concentration at 4 Time PointsUrinary NTX values at 3mo460.2 pg/mLStandard Deviation 514.1
RisedronateUrine Concentration at 4 Time PointsUrinary NTX values at 9mo536.1 pg/mLStandard Deviation 460
RisedronateUrine Concentration at 4 Time PointsUrinary NTX values at 6mo669.9 pg/mLStandard Deviation 955.9
RisedronateUrine Concentration at 4 Time PointsUrinary NTX values at 12mo611.0 pg/mLStandard Deviation 494.7
RisedronateUrine Concentration at 4 Time PointsUrinary NTX values at BL499.3 pg/mLStandard Deviation 592
Matching PlaceboUrine Concentration at 4 Time PointsUrinary NTX values at 12mo411.7 pg/mLStandard Deviation 314
Matching PlaceboUrine Concentration at 4 Time PointsUrinary NTX values at BL524.9 pg/mLStandard Deviation 399.4
Matching PlaceboUrine Concentration at 4 Time PointsUrinary NTX values at 3mo494.5 pg/mLStandard Deviation 342.4
Matching PlaceboUrine Concentration at 4 Time PointsUrinary NTX values at 6mo350.7 pg/mLStandard Deviation 301.8
Matching PlaceboUrine Concentration at 4 Time PointsUrinary NTX values at 9mo507.0 pg/mLStandard Deviation 492.2

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