Trial Outcomes & Findings for Evidence-Based Colorectal Cancer Screening for the Uninsured (NCT NCT01946282)

NCT ID: NCT01946282

Last Updated: 2020-03-19

Results Overview

Primary outcome was analyzed using an intent-to-screen approach where a 2-sided P-value \<0.05 was considered statistically significant. Patients were randomly assigned to one of 3 groups: outreach only, outreach + $5 incentive upon FIT return, and outreach + $10 incentive upon FIT return. For analysis, incentive groups were combined and compared to outreach alone.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

8565 participants

Primary outcome timeframe

Each year for three years

Results posted on

2020-03-19

Participant Flow

18,700 age-eligible patients with qualifying outpatient clinic visits were identified for invitation. 10,135 patients were excluded from participation due to the following: primary language not English or Spanish, missing contact information, incarceration, screen up-to-date, and prior history of colorectal cancer or inflammatory bowel disease.

Participant milestones

Participant milestones
Measure
FIT Invitation Only, No Incentive
Fecal Immunochemical Test (FIT) mailed to patient homes free of charge. Fecal Immunochemical Test (FIT) kits and an invitation letter to complete colorectal cancer screening are mailed to the homes of study eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within 1 week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation. Follow up for patients who return a normal test in Year 1 will consist of repeat screening invitations in Year 2 and Year 3 consistent with guideline recommended annual FIT for colorectal cancer screening. Follow up for patients who return an abnormal test will consist of navigation to complete colonoscopy.
FIT Plus $5 Incentive
Fecal Immunochemical Test (FIT) mailed to patient homes, plus an $5 gift card incentive to complete the test. FIT kits and invitation letter with a gift card incentive to complete screening are mailed to the homes of 1000 randomly assigned eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within 1 week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation. Follow up for patients who return a normal test in Year 1 will consist of repeat screening invitations in Year 2 and Year 3. Follow up for patients who return an abnormal test will consist of navigation to complete colonoscopy.
FIT Plus $10 Incentive
Fecal Immunochemical Test (FIT) mailed to patient homes, plus an $10 gift card incentive to complete the test. FIT kits and invitation letter with a gift card incentive to complete screening are mailed to the homes of 1000 randomly assigned eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within 1 week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation. Follow up for patients who return a normal test in Year 1 will consist of repeat screening invitations in Year 2 and Year 3. Follow up for patients who return an abnormal test will consist of navigation to complete colonoscopy.
Year 1
STARTED
6565
1000
1000
Year 1
COMPLETED
2379
392
346
Year 1
NOT COMPLETED
4186
608
654
Year 2
STARTED
2051
341
299
Year 2
COMPLETED
1248
210
184
Year 2
NOT COMPLETED
803
131
115
Year 3
STARTED
1144
184
170
Year 3
COMPLETED
856
141
140
Year 3
NOT COMPLETED
288
43
30

Reasons for withdrawal

Reasons for withdrawal
Measure
FIT Invitation Only, No Incentive
Fecal Immunochemical Test (FIT) mailed to patient homes free of charge. Fecal Immunochemical Test (FIT) kits and an invitation letter to complete colorectal cancer screening are mailed to the homes of study eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within 1 week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation. Follow up for patients who return a normal test in Year 1 will consist of repeat screening invitations in Year 2 and Year 3 consistent with guideline recommended annual FIT for colorectal cancer screening. Follow up for patients who return an abnormal test will consist of navigation to complete colonoscopy.
FIT Plus $5 Incentive
Fecal Immunochemical Test (FIT) mailed to patient homes, plus an $5 gift card incentive to complete the test. FIT kits and invitation letter with a gift card incentive to complete screening are mailed to the homes of 1000 randomly assigned eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within 1 week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation. Follow up for patients who return a normal test in Year 1 will consist of repeat screening invitations in Year 2 and Year 3. Follow up for patients who return an abnormal test will consist of navigation to complete colonoscopy.
FIT Plus $10 Incentive
Fecal Immunochemical Test (FIT) mailed to patient homes, plus an $10 gift card incentive to complete the test. FIT kits and invitation letter with a gift card incentive to complete screening are mailed to the homes of 1000 randomly assigned eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within 1 week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation. Follow up for patients who return a normal test in Year 1 will consist of repeat screening invitations in Year 2 and Year 3. Follow up for patients who return an abnormal test will consist of navigation to complete colonoscopy.
Year 1
Did not return FIT kit
4186
608
654
Year 2
Did not return FIT kit
803
131
115
Year 3
Did not return FIT kit
288
43
30

Baseline Characteristics

Evidence-Based Colorectal Cancer Screening for the Uninsured

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
FIT Invitation Only
n=6565 Participants
Fecal Immunochemical Test (FIT) mailed to patient homes free of charge. Fecal Immunochemical Test (FIT) kits and an invitation letter to complete colorectal cancer screening are mailed to the homes of study eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within one week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation. Follow up for patients who return a normal test in Year 1 will consist of repeat screening invitations in Year 2 and Year 3 consistent with guideline recommended annual FIT for colorectal cancer screening. Follow up for patients who return an abnormal test will consist of navigation to complete colonoscopy. FIT Invitation Only: Patients meeting the inclusion / exclusion criteria are mailed invitations to complete a free colorectal cancer screening. POLYMEDCO Fecal Immunochemical Tests (FIT) are mailed to patient homes.
FIT Plus $5 Incentive
n=1000 Participants
Fecal Immunochemical Test (FIT) mailed to patient homes, plus an incentive to complete the test. FIT kits and invitation letter with a gift card incentive in one of two small dollar amounts to complete screening are mailed to the homes of 2000 (1000 per group) randomly assigned eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within one week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation. Follow up for patients who return a normal test in Year 1 will consist of repeat screening invitations in Year 2 and Year 3. Follow up for patients who return an abnormal test will consist of navigation to complete colonoscopy. FIT plus Incentive: Patients meeting the inclusion / exclusion criteria are mailed invitations to complete a free colorectal cancer screening. POLYMEDCO Fecal Immunochemical Tests (FIT) are mailed to patient homes.
FIT Plus $10 Incentive
n=1000 Participants
Fecal Immunochemical Test (FIT) mailed to patient homes, plus an incentive to complete the test. FIT kits and invitation letter with a gift card incentive in one of two small dollar amounts to complete screening are mailed to the homes of 2000 (1000 per group) randomly assigned eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within one week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation. Follow up for patients who return a normal test in Year 1 will consist of repeat screening invitations in Year 2 and Year 3. Follow up for patients who return an abnormal test will consist of navigation to complete colonoscopy. FIT plus Incentive: Patients meeting the inclusion / exclusion criteria are mailed invitations to complete a free colorectal cancer screening. POLYMEDCO Fecal Immunochemical Tests (FIT) are mailed to patient homes.
Total
n=8565 Participants
Total of all reporting groups
Age, Continuous
56 years
n=5 Participants
56 years
n=7 Participants
56 years
n=5 Participants
56 years
n=4 Participants
Sex: Female, Male
Female
4042 Participants
n=5 Participants
610 Participants
n=7 Participants
644 Participants
n=5 Participants
5296 Participants
n=4 Participants
Sex: Female, Male
Male
2523 Participants
n=5 Participants
390 Participants
n=7 Participants
356 Participants
n=5 Participants
3269 Participants
n=4 Participants
Race/Ethnicity, Customized
White
2428 Participants
n=5 Participants
381 Participants
n=7 Participants
368 Participants
n=5 Participants
3177 Participants
n=4 Participants
Race/Ethnicity, Customized
Black
1578 Participants
n=5 Participants
270 Participants
n=7 Participants
245 Participants
n=5 Participants
2093 Participants
n=4 Participants
Race/Ethnicity, Customized
Hispanic
1951 Participants
n=5 Participants
257 Participants
n=7 Participants
293 Participants
n=5 Participants
2501 Participants
n=4 Participants
Race/Ethnicity, Customized
Asian
127 Participants
n=5 Participants
19 Participants
n=7 Participants
23 Participants
n=5 Participants
169 Participants
n=4 Participants
Race/Ethnicity, Customized
Other
405 Participants
n=5 Participants
59 Participants
n=7 Participants
54 Participants
n=5 Participants
518 Participants
n=4 Participants
Race/Ethnicity, Customized
Unknown
76 Participants
n=5 Participants
14 Participants
n=7 Participants
17 Participants
n=5 Participants
107 Participants
n=4 Participants

PRIMARY outcome

Timeframe: Each year for three years

Population: If FIT is positive, patients are routed to appropriate treatment. If FIT is negative, patients mailed invitations in the following year.

Primary outcome was analyzed using an intent-to-screen approach where a 2-sided P-value \<0.05 was considered statistically significant. Patients were randomly assigned to one of 3 groups: outreach only, outreach + $5 incentive upon FIT return, and outreach + $10 incentive upon FIT return. For analysis, incentive groups were combined and compared to outreach alone.

Outcome measures

Outcome measures
Measure
Standard Invite
n=6565 Participants
Fecal Immunochemical Test (FIT) kits and an invitation letter to complete colorectal cancer screening are mailed to the homes of study eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within one week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation.
Incentive Invite
n=2000 Participants
The denominator population for evaluating baseline and end of Year 3 screening rates will consist of patients meeting the following criteria: 1) Age 50-64, 2) Uninsured, but participants in JPS's medical assistance program for the uninsured, 3) One or more visits to a JPS primary care clinic within a year, 4) Address and phone number on file, 5) No history of CRC or colon resection, 6) Not incarcerated
Outreach Alone
The outreach included: (i) a mailed invitation to complete and return the FIT in English and Spanish; (ii) a 1-sample Polymedco OC Sensor FIT test; (iii) 2 automated telephone reminders in English and Spanish at the time invitations were mailed and 1 week later, encouraging test completion; and (iv) up to 2 live telephone reminders within 3 weeks of the invitation mailing, if the FIT was not returned or if the patient had not been reached during earlier attempts.
FIT Completion Among Patients Offered Any Incentive vs. Outreach Alone Each Year
Year 1 Screening Rate
2391 Participants
738 Participants
FIT Completion Among Patients Offered Any Incentive vs. Outreach Alone Each Year
Year 2 Screening Rate
1255 Participants
394 Participants
FIT Completion Among Patients Offered Any Incentive vs. Outreach Alone Each Year
Year 3 Screening Rate
856 Participants
281 Participants

SECONDARY outcome

Timeframe: Each year for three years

Population: Patients were re-invited after participation in previous year and had a negative FIT result.

Patients were randomly assigned to one of 3 groups: outreach only, outreach + $5 incentive upon FIT return, and outreach + $10 incentive upon FIT return. In year 4, use of financial incentives were discontinued and all patients with a normal result in year 3 were invited to complete a FIT using outreach only, regardless of their original intervention group.

Outcome measures

Outcome measures
Measure
Standard Invite
n=1000 Participants
Fecal Immunochemical Test (FIT) kits and an invitation letter to complete colorectal cancer screening are mailed to the homes of study eligible patients. A postage paid return mailer is included. Automated and "live" phone call reminders are made at the time of invitation and within one week of invitation. Up to two "live" phone call reminders are attempted 2 to 3 weeks post invitation.
Incentive Invite
n=1000 Participants
The denominator population for evaluating baseline and end of Year 3 screening rates will consist of patients meeting the following criteria: 1) Age 50-64, 2) Uninsured, but participants in JPS's medical assistance program for the uninsured, 3) One or more visits to a JPS primary care clinic within a year, 4) Address and phone number on file, 5) No history of CRC or colon resection, 6) Not incarcerated
Outreach Alone
n=6565 Participants
The outreach included: (i) a mailed invitation to complete and return the FIT in English and Spanish; (ii) a 1-sample Polymedco OC Sensor FIT test; (iii) 2 automated telephone reminders in English and Spanish at the time invitations were mailed and 1 week later, encouraging test completion; and (iv) up to 2 live telephone reminders within 3 weeks of the invitation mailing, if the FIT was not returned or if the patient had not been reached during earlier attempts.
FIT Completion for Groups Offered $5 vs. Outreach Alone, $10 vs. Outreach Alone, and $5 vs. $10 Incentive
Year 2 Repeat Screening Rate
210 Participants
184 Participants
1248 Participants
FIT Completion for Groups Offered $5 vs. Outreach Alone, $10 vs. Outreach Alone, and $5 vs. $10 Incentive
Year 3 Repeat Screening Rate
141 Participants
140 Participants
856 Participants
FIT Completion for Groups Offered $5 vs. Outreach Alone, $10 vs. Outreach Alone, and $5 vs. $10 Incentive
Year 1 Initial Screening Rate
392 Participants
346 Participants
2379 Participants

Adverse Events

FIT Invitation Only, No Incentive

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

FIT Plus $5 Incentive

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

FIT Plus $10 Incentive

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

Dr. Keith Argenbright, Director, Moncrief Cancer Institute

University of Texas Southwestern Medical Center, Moncrief Cancer Institute

Phone: 817-288-0070

Results disclosure agreements

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