CoGENES Randomized Controlled Trial (RCT)

Evaluation of a Colorectal Cancer Education Training Program

This clinical trial evaluates the effectiveness of trained community engagement specialists for improving communication on colorectal cancer (CRC) prevention and genetic testing among Hispanic/Latino/a/x (H/L) communities. CRC is the second and third leading cause of cancer deaths among United States (US) H/L men and women respectively. Knowledge of inherited germline mutations (changes in a gene that occurs in a sperm or egg cell) is critical for understanding cause of disease and can impact patient treatment options and outcomes. Educational programs and participant engagement approaches focused on H/L individuals considering Latino cultural values, literacy, numeracy, barriers faced, cultural beliefs and attitudes, as well as language of participants are much needed to address these observed disparities. The Community Genetic Navigation Specialists (CoGENES) Program focuses on increasing knowledge, and preparing the CoGENES trainees to help respond to questions, fears, and concerns regarding genetic testing, counseling, biospecimen (sample of urine, blood, or tissue cells) donation and participation in clinical trials to H/L community members, patients and their families. CoGENES may improve communication on colorectal cancer prevention and genetic testing which can help reduce cancer disparities among H/L communities.

Study Overview

• Status: Active, not recruiting
• Conditions: Colorectal Carcinoma
• Intervention / Treatment: Other: Survey Administration; Other: Best Practice; Other: Health Promotion and Education

Detailed Description

PRIMARY OBJECTIVE:

I. To develop a local workforce of trained community engagement specialists to act as liaison agents to improve communication on genetic research, clinical genetic testing, and counseling to Hispanic/Latino/a/x (H/L) individuals.

OUTLINE: Participants are randomized to 1 of 2 groups.

GROUP 1: Participants receive a packet of existing information materials about colorectal cancer prevention, screening, and genetic testing to review at their own pace over 6-10 weeks. Participants may optionally receive a CoGENES training session within 2 weeks post-intervention.

GROUP 2: Participants receive a CoGENES training session over 45-60 minutes.

After completion of study intervention, participants are followed up at 8 weeks, 6 months and 12 months.

• Study Type: Interventional
• Enrollment (Actual): 138
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • California
    • Los Angeles, California, United States, 90033
      • USC / Norris Comprehensive Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Must be 18 years of age or older
• Ability to understand and the willingness to sign a written informed consent
• Self-reported H/L ethnicity, of any race
• Ability to read, write, and speak Spanish or English
• Resides in Los Angeles County

Exclusion Criteria:

• Anyone younger than 18 years of age
• Any person with major cognitive deficit or psychiatric impairment
• Any person unable to read and write Spanish or English
• Resides outside of Los Angeles County
• Any person who considers themselves a community health educator or "promotor/a de salud" and/or has taken in the past three years training on colorectal cancer and/or cancer genetics

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Health Services Research
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Group 1 (usual care); Participants receive a packet of existing information materials about colorectal cancer prevention, screening, and genetic testing to review at their own pace over 6-10 weeks. Participants may optionally receive a CoGENES training session within 2 weeks post-intervention.	Other: Survey Administration; Ancillary studies; Other: Best Practice; Receive a packet of existing information materials about colorectal cancer prevention, screening, and genetic testing; Other Names: standard of care; standard therapy
Experimental: Group 2 (CoGENES); Participants receive a CoGENES training session over 45-60 minutes.	Other: Survey Administration; Ancillary studies; Other: Health Promotion and Education; Receive CoGENES training

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Changes in dietary and lifestyle patterns	Measured by scores obtained from surveys developed for this study. Will compare pre- and post- surveys to evaluate changes. Higher scores mean positive changes.	Baseline to 12 months
Intention to inquire about cancer history among family members	Will be assessed using one question with a 5-point response option (1 = Very Unlikely, 2 = Somewhat Unlikely, 3 = Neutral, 4 = Somewhat Likely, 5 = Very Likely).	Up to 12 months
Intention to ask healthcare provider about genetic testing and counseling	Will be assessed using one question with a 5-point response option (1 = Very Unlikely, 2 = Somewhat Unlikely, 3 = Neutral, 4 = Somewhat Likely, 5 = Very Likely).	Up to 12 months
Change in knowledge about colorectal cancer prevention	We will use the WCRF/AICR score, which is a standardized scoring system, typically ranging from 0 to 7 points, that measures an individual's adherence to the World Cancer Research Fund (WCRF) and American Institute for Cancer Research (AICR) recommendations for cancer prevention. A higher score indicates greater compliance with lifestyle factors like maintaining a healthy weight, engaging in physical activity, eating a diet rich in plant-based foods, and limiting alcohol, fast food, and sugary drinks. We will compare pre- and post-intervention to assess knowledge.	Baseline to 12 months
Change in knowledge about genetic testing	Will use the Genetic Literacy and Comprehension (GLAC) measure to assess participant knowledge with eight commonly used genetic terms and concepts (genetic, chromosome, susceptibility, mutation, variation, abnormality, heredity, and sporadic) using a 7-point scale of 1 "Strongly Disagree" to 7 "Strongly Agree". We will compare pre- and post- surveys to assess knowledge.	Baseline to 12 months
Change in knowledge about tumor testing	Will assess participants knowledge about tumor testing as determined by scores obtained from validated surveys. Will compare pre- and post- surveys to assess knowledge. Higher scores mean better knowledge.	Baseline to 12 months
Change in knowledge about genetic counseling	There are 14 items in the questionnaire of Cancer Genetic Knowledge Scale. The total score ranges between 14 and 70. Higher scores indicate more/better knowledge. The questionnaire will be administered at pre- and post-genetic education.	Baseline to 12 months
Intention to pursue colorectal cancer screening	Will be assessed using one question with a 5-point response option (1 = Very Unlikely, 2 = Somewhat Unlikely, 3 = Neutral, 4 = Somewhat Likely, 5 = Very Likely).	Up to 12 months

Collaborators and Investigators

• Sponsor: University of Southern California
• Collaborators: National Cancer Institute (NCI)
• Investigators: Principal Investigator: Mariana C Stern, PhD, University of Southern California

Study record dates

Study Major Dates

• Study Start (Actual): June 20, 2024
• Primary Completion (Estimated): December 31, 2026
• Study Completion (Estimated): June 20, 2027

Study Registration Dates

• First Submitted: September 16, 2025
• First Submitted That Met QC Criteria: November 12, 2025
• First Posted (Actual): November 17, 2025

Study Record Updates

• Last Update Posted (Actual): July 17, 2026
• Last Update Submitted That Met QC Criteria: July 16, 2026
• Last Verified: July 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Intestinal Diseases; Gastrointestinal Neoplasms; Digestive System Neoplasms; Digestive System Diseases; Gastrointestinal Diseases; Intestinal Neoplasms; Rectal Diseases; Colonic Diseases; Colorectal Neoplasms; Health Services Administration; Health Care Quality, Access, and Evaluation; Quality of Health Care; Quality Indicators, Health Care; Health Services; Health Care Facilities Workforce and Services; Preventive Health Services; Socioeconomic Factors; Population Characteristics; Guidelines as Topic; Quality Assurance, Health Care; Health Education; Standard of Care; Educational Status; Practice Guidelines as Topic; Health Promotion
• Other Study ID Numbers: 19PS-24-7 (Other Identifier: USC / Norris Comprehensive Cancer Center); P30CA014089 (U.S. NIH Grant/Contract); NCI-2025-02815 (Registry Identifier: CTRP (Clinical Trial Reporting Program)); U2CCA252971-01 (U.S. NIH Grant/Contract)

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No