Trial Outcomes & Findings for A Study Using Cone Beam CT for Head and Neck Cancer (NCT NCT01661062)

NCT ID: NCT01661062

Last Updated: 2016-08-29

Results Overview

The primary outcome measure of this study is to characterize patient-specific target and normal tissue movement.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

23 participants

Primary outcome timeframe

approximately 7 weeks

Results posted on

2016-08-29

Participant Flow

Participant milestones

Participant milestones
Measure
Cone Beam CT
For the purposes of this study patients will get CT scans every day for the length of their radiation therapy (in order to assess if CT every day provides additional information compared with CT scans performed less frequently). Radiotherapy will be delivered according to current guidelines. Imaging will be performed every day before treatment for a total of approximately 35 cone beam CT scans over the 7 week course of therapy.
Overall Study
STARTED
23
Overall Study
COMPLETED
18
Overall Study
NOT COMPLETED
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Cone Beam CT
For the purposes of this study patients will get CT scans every day for the length of their radiation therapy (in order to assess if CT every day provides additional information compared with CT scans performed less frequently). Radiotherapy will be delivered according to current guidelines. Imaging will be performed every day before treatment for a total of approximately 35 cone beam CT scans over the 7 week course of therapy.
Overall Study
Completed Treatment Off Study
3
Overall Study
Withdrawal by Subject
2

Baseline Characteristics

A Study Using Cone Beam CT for Head and Neck Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Cone Beam CT
n=18 Participants
For the purposes of this study patients will get CT scans every day for the length of their radiation therapy (in order to assess if CT every day provides additional information compared with CT scans performed less frequently). Radiotherapy will be delivered according to current guidelines. Imaging will be performed every day before treatment for a total of approximately 35 cone beam CT scans over the 7 week course of therapy.
Age, Continuous
57 years
n=5 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
Sex: Female, Male
Male
16 Participants
n=5 Participants
Disease Site
Base of Tongue
9 participants
n=5 Participants
Disease Site
Tonsil
9 participants
n=5 Participants
T Stage
T1
2 participants
n=5 Participants
T Stage
T2
10 participants
n=5 Participants
T Stage
T3
5 participants
n=5 Participants
T Stage
T4
1 participants
n=5 Participants
N Stage
N0
1 participants
n=5 Participants
N Stage
N1
0 participants
n=5 Participants
N Stage
N2a
1 participants
n=5 Participants
N Stage
N2b
10 participants
n=5 Participants
N Stage
N2c
4 participants
n=5 Participants
N Stage
N3
2 participants
n=5 Participants
Pre-Treatment Weight
203 lb
n=5 Participants

PRIMARY outcome

Timeframe: approximately 7 weeks

The primary outcome measure of this study is to characterize patient-specific target and normal tissue movement.

Outcome measures

Outcome data not reported

PRIMARY outcome

Timeframe: 24 months

Population: 36 parotid glands were evaluable from 18 patients at baseline, 34 parotid glands were evaluable at 3-6 months, 32 glands were evaluable at 12 months, 20 were evaluable at 18 months and 8 at 24 months.

Spearman rank-based correlation coefficients were calculated for the association between saliva flow rate and the delivered mean parotid doses at several timepoints (Baseline, 3 months, 6 months, 12 months, 18 months, and 24 months).

Outcome measures

Outcome measures
Measure
Cone Beam CT
n=18 Participants
For the purposes of this study patients will get CT scans every day for the length of their radiation therapy (in order to assess if CT every day provides additional information compared with CT scans performed less frequently). Radiotherapy will be delivered according to current guidelines. Imaging will be performed every day before treatment for a total of approximately 35 cone beam CT scans over the 7 week course of therapy.
Correlation Coefficient for the Association Between Delivered Mean Parotid Dose and Salivary Flow Rate
3 Months
-0.42 correlation coefficient
Correlation Coefficient for the Association Between Delivered Mean Parotid Dose and Salivary Flow Rate
6 Months
-0.57 correlation coefficient
Correlation Coefficient for the Association Between Delivered Mean Parotid Dose and Salivary Flow Rate
Baseline
-0.26 correlation coefficient
Correlation Coefficient for the Association Between Delivered Mean Parotid Dose and Salivary Flow Rate
12 Months
-0.35 correlation coefficient
Correlation Coefficient for the Association Between Delivered Mean Parotid Dose and Salivary Flow Rate
18 Months
-0.42 correlation coefficient
Correlation Coefficient for the Association Between Delivered Mean Parotid Dose and Salivary Flow Rate
24 Months
-0.60 correlation coefficient

SECONDARY outcome

Timeframe: 36 months

Use acquired data to further improve cone beam CT reconstruction techniques and image quality.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 7 weeks

Outcome measures

Outcome measures
Measure
Cone Beam CT
n=18 Participants
For the purposes of this study patients will get CT scans every day for the length of their radiation therapy (in order to assess if CT every day provides additional information compared with CT scans performed less frequently). Radiotherapy will be delivered according to current guidelines. Imaging will be performed every day before treatment for a total of approximately 35 cone beam CT scans over the 7 week course of therapy.
The Median Delivered Dose of Radiation to the Parotid Gland
32.4 Gy
Interval 23.2 to 63.2

Adverse Events

Cone Beam CT

Serious events: 2 serious events
Other events: 9 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Cone Beam CT
n=18 participants at risk
For the purposes of this study patients will get CT scans every day for the length of their radiation therapy (in order to assess if CT every day provides additional information compared with CT scans performed less frequently). Radiotherapy will be delivered according to current guidelines. Imaging will be performed every day before treatment for a total of approximately 35 cone beam CT scans over the 7 week course of therapy.
Metabolism and nutrition disorders
Hyperkalemia
5.6%
1/18 • Number of events 1
Renal and urinary disorders
Renal Failure
5.6%
1/18 • Number of events 1

Other adverse events

Other adverse events
Measure
Cone Beam CT
n=18 participants at risk
For the purposes of this study patients will get CT scans every day for the length of their radiation therapy (in order to assess if CT every day provides additional information compared with CT scans performed less frequently). Radiotherapy will be delivered according to current guidelines. Imaging will be performed every day before treatment for a total of approximately 35 cone beam CT scans over the 7 week course of therapy.
Skin and subcutaneous tissue disorders
Chemoradiation Rash
38.9%
7/18 • Number of events 12
Skin and subcutaneous tissue disorders
Radiation Rash
11.1%
2/18 • Number of events 4
Metabolism and nutrition disorders
Dehydration
44.4%
8/18 • Number of events 15
Gastrointestinal disorders
xerostomia
50.0%
9/18 • Number of events 30
Gastrointestinal disorders
Dysphagia
50.0%
9/18 • Number of events 21
Gastrointestinal disorders
Esophagitis
44.4%
8/18 • Number of events 17
Gastrointestinal disorders
Gastrointestinal Other
11.1%
2/18 • Number of events 7
Investigations
Mucositis/Stomatitis (upon exam)
50.0%
9/18 • Number of events 25
Gastrointestinal disorders
Mucositis/Stomatitis (symptomatic)
11.1%
2/18 • Number of events 3
Gastrointestinal disorders
Nausea
16.7%
3/18 • Number of events 6
Gastrointestinal disorders
Salivary Gland Changes
38.9%
7/18 • Number of events 22
Gastrointestinal disorders
Dysgeusia
50.0%
9/18 • Number of events 27

Additional Information

Avraham Eisbruch, M.D.

University of Michigan Comprehensive Cancer Center

Phone: 734-936-4302

Results disclosure agreements

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