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Colorectal Cancer Screening Assessment Study

Colorectal Cancer Screening Assessment Study in American Samoa

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04500171
Enrollment
264
Registered
2020-08-05
Start date
2020-09-21
Completion date
2023-06-08
Last updated
2025-06-24

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

Conditions

Colorectal Cancer

Keywords

health literacy, screening

Brief summary

This study, led by the American Samoa Community Cancer Coalition's INdigenous Samoan Partnership to Initiate Research Excellence (INSPIRE) and the UH Cancer Center's project team including Dr. Cassel, will utilize a community-based and culturally relevant process to assess the uptake of fecal occult blood testing (FOBT) using tailored colorectal cancer patient education materials for those with inadequate health literacy. Our primary outcomes include: 1) process to develop suitable and comprehensible health promotion materials for populations in English and Samoan with various health literacy levels, 2) commitment to use the FOBT Colocare home kit, and 3) use of a FOBT Colocare home kit.

Detailed description

Utilizing the Behavioral Model of Health Services Use as a conceptual framework and the evidence-based program Against Colorectal Cancer in Our Neighborhoods (ACCION) for the Latino population in Texas as a guide, the proposed study will conduct a randomized controlled trial of Indigenous Samoan participants (N=312), age≥ 50 recruited using Respondent-Driven Sampling (RDS). This design will compare use of non-tailored instruction for completing ColoCare FOBT home-kits (N=156) versus the experimental condition, using a ColoCare FOBT home-kit with instructions tailored to low health literacy and to enhance CRC-Knowledge Attitudes and Behavior (KAB) - (N=156). Our goal is to test the influence of tailored materials on timely completion of CRC screening using the ColoCARE FOBT.

Interventions

BEHAVIORALColocare Instruction Video: Modified SAM + CAM -Superior rating

Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words

BEHAVIORALColocare Instruction Sheet: SAM + CAM Cloze Procedure

Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words

BEHAVIORALColocare Instruction Sheet: SAM + CAM SMOG

Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words

BEHAVIORALCDC Colorectal cancer screening for life brochure: SAM + CAM SMOG

Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words

BEHAVIORALColocare Instruction Sheet: SAM + CAM - Superior rating SMOG - 5th Grade Level

Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words

BEHAVIORALCDC Colorectal Cancer Screening for Life Brochure: SAM + CAM - Superior rating SMOG - 5th Grade Level

Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words

BEHAVIORALCDC Colorectal cancer screening for life brochure: SAM + CAM Cloze Procedure

Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words

BEHAVIORALColocare Instruction Sheet: SAM + CAM - Superior rating Cloze Procedure

Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words

BEHAVIORALCDC Colorectal Cancer Screening for Life Brochure: SAM + CAM - Superior rating Cloze Procedure

Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words

Sponsors

University of Hawaii
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING
Masking
NONE

Intervention model description

The health belief model and social cognitive theory were used as foundational principles to develop an intervention that builds awareness to initiate a CRC screening behavior modification. This research project will be the first to test the efficacy of the ColoCare FOBT home kit as a CRC screening intervention using a classical experimental (randomized clinical trial) in American Samoa. Second, the ColoCare kits can be identified as a cost-effective and culturally appropriate alternative to traditional FOBT home test kits. Lastly, results will be used to develop recommendations in healthcare delivery systems to improve information, communication, informed decision-making, and access to care in American Samoa.

Eligibility

Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

1. Resident of America Samoa 2. Over age 50 3. Have not been diagnosed or treated for colon cancer 4. Is not high risk for CRC by having family history or diagnosed with irritable bowel syndrome 5. Can read and speak English and Samoan (can provide written informed consent) 6. Have a home address and working phone 7. Is willing to provide information on their health behaviors

Exclusion criteria

* persons who indicate they speak or read and write Samoan or English less than well

Design outcomes

Primary

MeasureTime frameDescription
Use of FOBT ColoCARE Home Kit3 monthsNumber of participants reporting results for the FOBT ColoCARE Home kit
Increase Uptake of FOBT ColoCARE Home Kit2 monthsChange in CRC-Knowledge Attitudes and Behavior (KAB) among subjects who viewed the tailored ColoCARE video. This measure is a 7 question assessment given before and after participants viewed the ColoCARE video. Participants were scored based on their pre and post assessment responses.
Modified Patient Education Materials1 MonthUse a combination of inadequate health literacy recommendations, suitable, and comprehensible assessment methods to develop modified culturally appropriate patient education materials for Colorectal Cancer (CRC). Each of the 22 items within the 6 identified categories are given a score of 0 - 2 based upon certain criteria. Total scores are calculated into percentages and 100% to 70% is adequate, 69% to 40% is marginal, while 39% - 0% is inadequate.

Countries

American Samoa

Participant flow

Participants by arm

ArmCount
English Original Assessment Tools
Short-Test of Functional Health Literacy in Adults ColoCARE Instruction Sheet CDC Colorectal Cancer Screening for Life Brochure ColoCARE Reply Card Colocare Instruction Sheet: SAM + CAM SMOG: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words CDC Colorectal cancer screening for life brochure: SAM + CAM SMOG: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words
58
Samoan Original Assessment Tools
Samoan Short-Test of Functional Health Literacy in Adults ColoCARE Instruction sheet CDC Colorectal Cancer Screening for Life Brochure ColoCARE Reply Card Colocare Instruction Sheet: SAM + CAM Cloze Procedure: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words CDC Colorectal cancer screening for life brochure: SAM + CAM Cloze Procedure: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words
90
English Modified Assessment Tools
Short-Test of Functional Health Literacy in Adults Modified ColoCARE Instruction Sheet Modified Colorectal Cancer Screening Brochure ColoCARE Reply Card Colocare Instruction Sheet: SAM + CAM - Superior rating SMOG - 5th Grade Level: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words CDC Colorectal Cancer Screening for Life Brochure: SAM + CAM - Superior rating SMOG - 5th Grade Level: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words Colocare Instruction Video: Modified SAM + CAM -Superior rating: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words
40
Samoan Modified Assessment Tools
Samoan Short Test of Functional Health Literacy in Adults Modified ColoCARE Instruction Sheet Modified Colorectal Cancer Screening Brochure ColoCARE Reply Card Colocare Instruction Video: Modified SAM + CAM -Superior rating: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words Colocare Instruction Sheet: SAM + CAM - Superior rating Cloze Procedure: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words CDC Colorectal Cancer Screening for Life Brochure: SAM + CAM - Superior rating Cloze Procedure: Suitability and Comprehensibility Assessment of Materials (SAM + CAM). The SAM + CAM is comprised of 22 evaluation items within the 6 original categories. The SMOG is a readability assessment tool that uses a formula to calculate grade levels by the number of sentences, total number of words in the sentences, and the number of polysyllabic words
76
Total264

Baseline characteristics

CharacteristicEnglish Original Assessment ToolsSamoan Original Assessment ToolsEnglish Modified Assessment ToolsSamoan Modified Assessment ToolsTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
4 Participants7 Participants5 Participants7 Participants23 Participants
Age, Categorical
Between 18 and 65 years
52 Participants80 Participants32 Participants66 Participants230 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
58 Participants90 Participants40 Participants76 Participants264 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants2 Participants0 Participants3 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
57 Participants90 Participants38 Participants76 Participants261 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants0 Participants0 Participants
Region of Enrollment
American Samoa
58 participants90 participants40 participants76 participants264 participants
Sex: Female, Male
Female
44 Participants67 Participants30 Participants16 Participants157 Participants
Sex: Female, Male
Male
14 Participants23 Participants10 Participants60 Participants107 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 580 / 900 / 400 / 76
other
Total, other adverse events
0 / 580 / 900 / 400 / 76
serious
Total, serious adverse events
0 / 580 / 900 / 400 / 76

Outcome results

Primary

Increase Uptake of FOBT ColoCARE Home Kit

Change in CRC-Knowledge Attitudes and Behavior (KAB) among subjects who viewed the tailored ColoCARE video. This measure is a 7 question assessment given before and after participants viewed the ColoCARE video. Participants were scored based on their pre and post assessment responses.

Time frame: 2 months

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
English Original Assessment ToolsIncrease Uptake of FOBT ColoCARE Home KitPositive Change48 Participants
English Original Assessment ToolsIncrease Uptake of FOBT ColoCARE Home KitNegative Change10 Participants
Samoan Original Assessment ToolsIncrease Uptake of FOBT ColoCARE Home KitPositive Change84 Participants
Samoan Original Assessment ToolsIncrease Uptake of FOBT ColoCARE Home KitNegative Change6 Participants
English Modified Assessment ToolsIncrease Uptake of FOBT ColoCARE Home KitNegative Change17 Participants
English Modified Assessment ToolsIncrease Uptake of FOBT ColoCARE Home KitPositive Change23 Participants
Samoan Modified Assessment ToolsIncrease Uptake of FOBT ColoCARE Home KitPositive Change67 Participants
Samoan Modified Assessment ToolsIncrease Uptake of FOBT ColoCARE Home KitNegative Change6 Participants
Primary

Modified Patient Education Materials

Use a combination of inadequate health literacy recommendations, suitable, and comprehensible assessment methods to develop modified culturally appropriate patient education materials for Colorectal Cancer (CRC). Each of the 22 items within the 6 identified categories are given a score of 0 - 2 based upon certain criteria. Total scores are calculated into percentages and 100% to 70% is adequate, 69% to 40% is marginal, while 39% - 0% is inadequate.

Time frame: 1 Month

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
English Original Assessment ToolsModified Patient Education MaterialsAdequate STOFHLA Score41 Participants
English Original Assessment ToolsModified Patient Education MaterialsMarginal STOFHLA Score13 Participants
English Original Assessment ToolsModified Patient Education MaterialsInadequate STOFHLA Score4 Participants
Samoan Original Assessment ToolsModified Patient Education MaterialsAdequate STOFHLA Score18 Participants
Samoan Original Assessment ToolsModified Patient Education MaterialsMarginal STOFHLA Score25 Participants
Samoan Original Assessment ToolsModified Patient Education MaterialsInadequate STOFHLA Score47 Participants
English Modified Assessment ToolsModified Patient Education MaterialsInadequate STOFHLA Score4 Participants
English Modified Assessment ToolsModified Patient Education MaterialsAdequate STOFHLA Score27 Participants
English Modified Assessment ToolsModified Patient Education MaterialsMarginal STOFHLA Score9 Participants
Samoan Modified Assessment ToolsModified Patient Education MaterialsMarginal STOFHLA Score26 Participants
Samoan Modified Assessment ToolsModified Patient Education MaterialsInadequate STOFHLA Score37 Participants
Samoan Modified Assessment ToolsModified Patient Education MaterialsAdequate STOFHLA Score10 Participants
Primary

Use of FOBT ColoCARE Home Kit

Number of participants reporting results for the FOBT ColoCARE Home kit

Time frame: 3 months

ArmMeasureValue (NUMBER)
English Original Assessment ToolsUse of FOBT ColoCARE Home Kit14 participants
Samoan Original Assessment ToolsUse of FOBT ColoCARE Home Kit2 participants
English Modified Assessment ToolsUse of FOBT ColoCARE Home Kit14 participants
Samoan Modified Assessment ToolsUse of FOBT ColoCARE Home Kit0 participants

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