Digital app to support oncologist‑initiated genetic testing

Mainstreaming Genetics: Evaluation of a Digital Application to Scale and Spread Oncologist-initiated Genetic Testing

NA · Unity Health Toronto · NCT07387263

This project tests a digital app (GA‑Mainstream) to help oncologists offer germline genetic testing to adults with breast, prostate, colon, or other GI cancers.

Quick facts

PhaseNA
Study typeInterventional
Enrollment180 (estimated)
Ages18 Years and up
SexAll
SponsorUnity Health Toronto (other)
Locations2 sites (Toronto, Ontario and 1 other locations)
Trial IDNCT07387263 on ClinicalTrials.gov

What this trial studies

This randomized interventional trial compares the GA‑Mainstream digital application to the current mainstreaming standard of care, where oncologists initiate genetic testing without formal pre‑test genetic counseling. The app delivers standardized education, decision support, and coordinated follow‑up to patients who are receiving oncologist‑initiated germline testing. The primary outcome focuses on patient psychological outcomes such as test‑specific distress, with additional measures of care coordination and service use. The trial enrolls adults who speak and read English and have internet access at two Toronto cancer centres (Sunnybrook and Mount Sinai).

Who should consider this trial

Good fit: Adults (18+) with a primary cancer who are receiving oncologist‑initiated germline genetic testing, who read and speak English and have internet access, are ideal candidates.

Not a fit: Patients referred directly to a genetics clinic, under 18, who do not speak/read English, lack internet/device access, or have impaired decisional capacity are unlikely to benefit from this digital approach.

Why it matters

Potential benefit: If successful, the app could reduce patient distress, standardize care, and lessen pressure on genetics clinics while keeping appropriate access to germline testing.

How similar studies have performed: Previous non‑randomized mainstreaming programs and digital decision tools have shown promising psychological and workflow benefits, but high‑quality randomized evidence is limited.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Receiving germline testing related to primary cancer condition initiated by oncologist
* 18 years old or older.
* Speak and read English

Exclusion Criteria:

* Receiving cancer genetic testing via a referral to a genetics clinic
* Do not speak or read English
* Under 18 years of age
* Determined to have diminished, marginal and or fluctuating decisional capacity
* Lack access to internet or an electronic device

Where this trial is running

Toronto, Ontario and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Cancer, Breast Cancer, Prostate Cancer, Colon Cancer, GI Cancers, Ovarian Cancer, Pancreatic Cancer, Cancer Genetic Testing

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.