Trial Outcomes & Findings for Prophylactic Risedronate for Patients With Peripheral Lung Tumors Treated With SBRT (NCT NCT03861091)

NCT ID: NCT03861091

Last Updated: 2023-07-27

Results Overview

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

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

84 participants

Primary outcome timeframe

At baseline and at 3 months post radiation

Results posted on

2023-07-27

Participant Flow

Participant milestones

Participant milestones
Measure
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
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
Overall Study
STARTED
41
43
Overall Study
COMPLETED
41
43
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Prophylactic Risedronate for Patients With Peripheral Lung Tumors Treated With SBRT

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Risedronate
n=41 Participants
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
Matching Placebo
n=43 Participants
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
Total
n=84 Participants
Total of all reporting groups
Age, Continuous
71.4 years
STANDARD_DEVIATION 7.9 • n=5 Participants
71.1 years
STANDARD_DEVIATION 7.3 • n=7 Participants
71.2 years
STANDARD_DEVIATION 7.6 • n=5 Participants
Sex: Female, Male
Female
16 Participants
n=5 Participants
18 Participants
n=7 Participants
34 Participants
n=5 Participants
Sex: Female, Male
Male
25 Participants
n=5 Participants
25 Participants
n=7 Participants
50 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
39 Participants
n=5 Participants
43 Participants
n=7 Participants
82 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=5 Participants
3 Participants
n=7 Participants
6 Participants
n=5 Participants
Race (NIH/OMB)
White
37 Participants
n=5 Participants
39 Participants
n=7 Participants
76 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Region of Enrollment
United States
41 participants
n=5 Participants
43 participants
n=7 Participants
84 participants
n=5 Participants

PRIMARY outcome

Timeframe: 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.

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

Outcome measures

Outcome measures
Measure
Risedronate
n=39 Participants
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
Matching Placebo
n=40 Bones
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
Changes in Mean Cortical Thickness
4.24 percent change in mm cortical thickne
Standard Error 3.04
7.14 percent change in mm cortical thickne
Standard Error 2.93

SECONDARY outcome

Timeframe: 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.

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.

Outcome measures

Outcome measures
Measure
Risedronate
n=39 Bones
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
Matching Placebo
n=40 Bones
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
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region >40 Gy--time 9mo to bl
6.03 percent change in mm cortical thickness
Standard Error 8.53
21.37 percent change in mm cortical thickness
Standard Error 7.69
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region <10 Gy--time 3mo to bl
13.04 percent change in mm cortical thickness
Standard Error 2.56
5.57 percent change in mm cortical thickness
Standard Error 2.50
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region <10 Gy--time 6mo to bl
10.37 percent change in mm cortical thickness
Standard Error 2.63
5.76 percent change in mm cortical thickness
Standard Error 2.57
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region <10 Gy--time 9mo to bl
12.10 percent change in mm cortical thickness
Standard Error 2.71
8.07 percent change in mm cortical thickness
Standard Error 2.59
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region <10 Gy--time 12mo to bl
11.58 percent change in mm cortical thickness
Standard Error 2.89
9.42 percent change in mm cortical thickness
Standard Error 2.70
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 10-20 Gy--time 3mo to bl
9.27 percent change in mm cortical thickness
Standard Error 2.78
4.97 percent change in mm cortical thickness
Standard Error 2.72
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 10-20 Gy--time 6mo to bl
6.24 percent change in mm cortical thickness
Standard Error 2.86
3.95 percent change in mm cortical thickness
Standard Error 2.82
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 10-20 Gy--time 9mo to bl
7.71 percent change in mm cortical thickness
Standard Error 2.95
5.65 percent change in mm cortical thickness
Standard Error 2.82
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 10-20 Gy--time 12mo to bl
10.11 percent change in mm cortical thickness
Standard Error 3.14
7.30 percent change in mm cortical thickness
Standard Error 2.94
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 20-30 Gy--time 3mo to bl
8.40 percent change in mm cortical thickness
Standard Error 2.99
3.70 percent change in mm cortical thickness
Standard Error 2.87
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 20-30 Gy--time 6mo to bl
5.41 percent change in mm cortical thickness
Standard Error 3.08
0.10 percent change in mm cortical thickness
Standard Error 2.95
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 20-30 Gy--time 9mo to bl
6.48 percent change in mm cortical thickness
Standard Error 3.18
4.94 percent change in mm cortical thickness
Standard Error 2.95
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 20-30 Gy--time12mo to bl
7.42 percent change in mm cortical thickness
Standard Error 3.36
7.23 percent change in mm cortical thickness
Standard Error 3.08
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 30-40 Gy--time 3mo to bl
4.90 percent change in mm cortical thickness
Standard Error 3.22
5.20 percent change in mm cortical thickness
Standard Error 3.10
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 30-40 Gy--time 6mo to bl
1.98 percent change in mm cortical thickness
Standard Error 3.31
3.21 percent change in mm cortical thickness
Standard Error 3.19
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 30-40 Gy--time 9mo to bl
3.70 percent change in mm cortical thickness
Standard Error 3.43
9.64 percent change in mm cortical thickness
Standard Error 3.19
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region 30-40 Gy--time12mo to bl
2.23 percent change in mm cortical thickness
Standard Error 3.62
11.77 percent change in mm cortical thickness
Standard Error 3.32
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region >30 Gy--time 3mo to bl
4.24 percent change in mm cortical thickness
Standard Error 3.04
7.14 percent change in mm cortical thickness
Standard Error 2.93
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region >30 Gy--time 6mo to bl
1.66 percent change in mm cortical thickness
Standard Error 3.13
6.11 percent change in mm cortical thickness
Standard Error 3.01
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region >30 Gy--time 9mo to bl
2.12 percent change in mm cortical thickness
Standard Error 3.24
10.32 percent change in mm cortical thickness
Standard Error 3.02
4 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 thickness
Standard Error 3.42
11.72 percent change in mm cortical thickness
Standard Error 3.14
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region >40 Gy--time 3mo to bl
5.83 percent change in mm cortical thickness
Standard Error 8.10
12.82 percent change in mm cortical thickness
Standard Error 7.53
4 Time Points Assessing Change in Mean Cortical Thickness of Bones
% change cort thickness in region >40 Gy--time 6mo to bl
5.62 percent change in mm cortical thickness
Standard Error 8.41
20.30 percent change in mm cortical thickness
Standard Error 7.68
4 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 thickness
Standard Error 8.92
17.17 percent change in mm cortical thickness
Standard Error 8.25

SECONDARY outcome

Timeframe: 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

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.

Outcome measures

Outcome measures
Measure
Risedronate
n=22 Participants
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
Matching Placebo
n=28 Participants
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
Number of Participants With Chest Wall Pain
2 Participants
4 Participants

SECONDARY outcome

Timeframe: 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.

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.

Outcome measures

Outcome measures
Measure
Risedronate
n=38 Participants
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
Matching Placebo
n=39 Participants
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
Number of Participants With Rib and Vertebral Fracture
15 Participants
11 Participants

SECONDARY outcome

Timeframe: At 3 months, 6 months, 9 months and 12 months post radiation

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

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).

Outcome measures

Outcome measures
Measure
Risedronate
n=38 Participants
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
Matching Placebo
n=41 Participants
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
Urine Concentration at 4 Time Points
Urinary NTX values at BL
499.3 pg/mL
Standard Deviation 592.0
524.9 pg/mL
Standard Deviation 399.4
Urine Concentration at 4 Time Points
Urinary NTX values at 3mo
460.2 pg/mL
Standard Deviation 514.1
494.5 pg/mL
Standard Deviation 342.4
Urine Concentration at 4 Time Points
Urinary NTX values at 6mo
669.9 pg/mL
Standard Deviation 955.9
350.7 pg/mL
Standard Deviation 301.8
Urine Concentration at 4 Time Points
Urinary NTX values at 9mo
536.1 pg/mL
Standard Deviation 460.0
507.0 pg/mL
Standard Deviation 492.2
Urine Concentration at 4 Time Points
Urinary NTX values at 12mo
611.0 pg/mL
Standard Deviation 494.7
411.7 pg/mL
Standard Deviation 314.0

Adverse Events

Risedronate

Serious events: 0 serious events
Other events: 5 other events
Deaths: 0 deaths

Matching Placebo

Serious events: 2 serious events
Other events: 0 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Risedronate
n=41 participants at risk
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
Matching Placebo
n=43 participants at risk
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
Cardiac disorders
Cardiac arrest
0.00%
0/41 • 30 days from the end of all treatments of radiation, up to 12 months.
2.3%
1/43 • Number of events 1 • 30 days from the end of all treatments of radiation, up to 12 months.
Cardiac disorders
Cardiac disorders
0.00%
0/41 • 30 days from the end of all treatments of radiation, up to 12 months.
2.3%
1/43 • Number of events 1 • 30 days from the end of all treatments of radiation, up to 12 months.

Other adverse events

Other adverse events
Measure
Risedronate
n=41 participants at risk
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
Matching Placebo
n=43 participants at risk
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
Cardiac disorders
Atrial flutter
2.4%
1/41 • Number of events 1 • 30 days from the end of all treatments of radiation, up to 12 months.
0.00%
0/43 • 30 days from the end of all treatments of radiation, up to 12 months.
General disorders
Fever
2.4%
1/41 • Number of events 1 • 30 days from the end of all treatments of radiation, up to 12 months.
0.00%
0/43 • 30 days from the end of all treatments of radiation, up to 12 months.
Musculoskeletal and connective tissue disorders
Arthralgia
2.4%
1/41 • Number of events 1 • 30 days from the end of all treatments of radiation, up to 12 months.
0.00%
0/43 • 30 days from the end of all treatments of radiation, up to 12 months.
Musculoskeletal and connective tissue disorders
Myalgia
2.4%
1/41 • Number of events 1 • 30 days from the end of all treatments of radiation, up to 12 months.
0.00%
0/43 • 30 days from the end of all treatments of radiation, up to 12 months.
Nervous system disorders
Stroke
2.4%
1/41 • Number of events 1 • 30 days from the end of all treatments of radiation, up to 12 months.
0.00%
0/43 • 30 days from the end of all treatments of radiation, up to 12 months.

Additional Information

Biostatistician

Wake Forest Baptist Comprehensive Cancer Center

Phone: 336-716-5440

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place