Trial Outcomes & Findings for Colorectal Cancer Screening in Alaska Native Men (NCT NCT06436300)
NCT ID: NCT06436300
Last Updated: 2025-08-29
Results Overview
Screening procedure documented in the electronic medical record
Recruitment status
COMPLETED
Study phase
NA
Target enrollment
998 participants
Primary outcome timeframe
Six months
Results posted on
2025-08-29
Participant Flow
The trial obtained a waiver of consent, and no individuals were directly recruited or enrolled. Screening-eligible men who met all other criteria were identified in the electronic health record and randomly sampled for inclusion in the study cohort.
Prior to sending the first electronic message, we re-queried the electronic health record and removed men who had completed colorectal screening in the interval between randomization and launching the trial.
Participant milestones
| Measure |
Control
The control arm received usual care for colorectal cancer screening outreach, and did not receive any study-related electronic messages.
|
Messages
This arm received electronic messages to promote colorectal cancer screening, but did not receive any notices about additional incentives.
|
Gift Card
This arm received the same electronic messages as the "Messages" arm, and was additionally promised a $50 gift card if they completed colorectal screening by the target date.
|
Raffle
This arm received the same electronic messages as the "Messages" arm, and were additionally promised they would be added to a raffle (\~$200 prize value) if they completed screening before a target date.
|
|---|---|---|---|---|
|
Overall Study
STARTED
|
250
|
250
|
248
|
250
|
|
Overall Study
COMPLETED
|
250
|
250
|
248
|
250
|
|
Overall Study
NOT COMPLETED
|
0
|
0
|
0
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Colorectal Cancer Screening in Alaska Native Men
Baseline characteristics by cohort
| Measure |
Control
n=250 Participants
The control arm received usual care for colorectal cancer screening outreach, and did not receive any study-related electronic messages.
|
Messages
n=250 Participants
This arm received electronic messages to promote colorectal cancer screening, but did not receive any notices about additional incentives.
|
Gift Card
n=248 Participants
This arm received the same electronic messages as the "Messages" arm, and was additionally promised a $50 gift card if they completed colorectal screening by the target date.
|
Raffle
n=250 Participants
This arm received the same electronic messages as the "Messages" arm, and were additionally promised they would be added to a raffle (\~$200 prize value) if they completed screening before a target date.
|
Total
n=998 Participants
Total of all reporting groups
|
|---|---|---|---|---|---|
|
Sex: Female, Male
Female
|
0 Participants
n=39 Participants
|
0 Participants
n=41 Participants
|
0 Participants
n=35 Participants
|
0 Participants
n=31 Participants
|
0 Participants
n=146 Participants
|
|
Sex: Female, Male
Male
|
250 Participants
n=39 Participants
|
250 Participants
n=41 Participants
|
248 Participants
n=35 Participants
|
250 Participants
n=31 Participants
|
998 Participants
n=146 Participants
|
|
Race (NIH/OMB)
American Indian or Alaska Native
|
250 Participants
n=39 Participants
|
250 Participants
n=41 Participants
|
248 Participants
n=35 Participants
|
250 Participants
n=31 Participants
|
998 Participants
n=146 Participants
|
|
Race (NIH/OMB)
Asian
|
0 Participants
n=39 Participants
|
0 Participants
n=41 Participants
|
0 Participants
n=35 Participants
|
0 Participants
n=31 Participants
|
0 Participants
n=146 Participants
|
|
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
|
0 Participants
n=39 Participants
|
0 Participants
n=41 Participants
|
0 Participants
n=35 Participants
|
0 Participants
n=31 Participants
|
0 Participants
n=146 Participants
|
|
Race (NIH/OMB)
Black or African American
|
0 Participants
n=39 Participants
|
0 Participants
n=41 Participants
|
0 Participants
n=35 Participants
|
0 Participants
n=31 Participants
|
0 Participants
n=146 Participants
|
|
Race (NIH/OMB)
White
|
0 Participants
n=39 Participants
|
0 Participants
n=41 Participants
|
0 Participants
n=35 Participants
|
0 Participants
n=31 Participants
|
0 Participants
n=146 Participants
|
|
Race (NIH/OMB)
More than one race
|
0 Participants
n=39 Participants
|
0 Participants
n=41 Participants
|
0 Participants
n=35 Participants
|
0 Participants
n=31 Participants
|
0 Participants
n=146 Participants
|
|
Race (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=39 Participants
|
0 Participants
n=41 Participants
|
0 Participants
n=35 Participants
|
0 Participants
n=31 Participants
|
0 Participants
n=146 Participants
|
|
Previous screening
Previously screened
|
36 Participants
n=39 Participants
|
40 Participants
n=41 Participants
|
36 Participants
n=35 Participants
|
40 Participants
n=31 Participants
|
152 Participants
n=146 Participants
|
|
Previous screening
Not previously screened
|
214 Participants
n=39 Participants
|
210 Participants
n=41 Participants
|
212 Participants
n=35 Participants
|
210 Participants
n=31 Participants
|
846 Participants
n=146 Participants
|
|
Age, Customized
40-44 years
|
78 Participants
n=39 Participants
|
82 Participants
n=41 Participants
|
87 Participants
n=35 Participants
|
79 Participants
n=31 Participants
|
326 Participants
n=146 Participants
|
|
Age, Customized
45-49 years
|
47 Participants
n=39 Participants
|
47 Participants
n=41 Participants
|
40 Participants
n=35 Participants
|
47 Participants
n=31 Participants
|
181 Participants
n=146 Participants
|
|
Age, Customized
50-54 years
|
46 Participants
n=39 Participants
|
40 Participants
n=41 Participants
|
39 Participants
n=35 Participants
|
29 Participants
n=31 Participants
|
154 Participants
n=146 Participants
|
|
Age, Customized
55-59 years
|
29 Participants
n=39 Participants
|
29 Participants
n=41 Participants
|
26 Participants
n=35 Participants
|
32 Participants
n=31 Participants
|
116 Participants
n=146 Participants
|
|
Age, Customized
60-65 years
|
50 Participants
n=39 Participants
|
52 Participants
n=41 Participants
|
56 Participants
n=35 Participants
|
63 Participants
n=31 Participants
|
221 Participants
n=146 Participants
|
PRIMARY outcome
Timeframe: Six monthsScreening procedure documented in the electronic medical record
Outcome measures
| Measure |
Control
n=250 Participants
The control arm received usual care for colorectal cancer screening outreach, and did not receive any study-related electronic messages.
|
Messages
n=250 Participants
This arm received electronic messages to promote colorectal cancer screening, but did not receive any notices about additional incentives.
|
Gift Card
n=248 Participants
This arm received the same electronic messages as the "Messages" arm, and was additionally promised a $50 gift card if they completed colorectal screening by the target date.
|
Raffle
n=250 Participants
This arm received the same electronic messages as the "Messages" arm, and were additionally promised they would be added to a raffle (\~$200 prize value) if they completed screening before a target date.
|
|---|---|---|---|---|
|
Number of Participants Who Completed Colorectal Cancer Screening
Any screening documented
|
11 Participants
|
16 Participants
|
18 Participants
|
19 Participants
|
|
Number of Participants Who Completed Colorectal Cancer Screening
No screening documented
|
239 Participants
|
234 Participants
|
230 Participants
|
231 Participants
|
PRIMARY outcome
Timeframe: Six monthsPre-screening or screening visit scheduled in the electronic medical record during follow-up
Outcome measures
| Measure |
Control
n=250 Participants
The control arm received usual care for colorectal cancer screening outreach, and did not receive any study-related electronic messages.
|
Messages
n=250 Participants
This arm received electronic messages to promote colorectal cancer screening, but did not receive any notices about additional incentives.
|
Gift Card
n=248 Participants
This arm received the same electronic messages as the "Messages" arm, and was additionally promised a $50 gift card if they completed colorectal screening by the target date.
|
Raffle
n=250 Participants
This arm received the same electronic messages as the "Messages" arm, and were additionally promised they would be added to a raffle (\~$200 prize value) if they completed screening before a target date.
|
|---|---|---|---|---|
|
Number of Participants Who Scheduled a Screening-related Visit
Visit scheduled
|
8 Participants
|
20 Participants
|
18 Participants
|
17 Participants
|
|
Number of Participants Who Scheduled a Screening-related Visit
No visit scheduled
|
242 Participants
|
230 Participants
|
230 Participants
|
233 Participants
|
Adverse Events
Control
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Messages
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Gift Card
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Raffle
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place