Active Surveillance and Chemotherapy Before Surgery in Treating Participants With Stage II-III Rectal Cancer
Public ClinicalTrials.gov record NCT03594630. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Organ Preservation With Active Surveillance After Chemoradiation in Rectal Cancer (OPTION)
Study identification
- NCT ID
- NCT03594630
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Early Phase 1
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Enrollment
- 120 participants
Conditions and interventions
Conditions
Interventions
- Chemotherapy Drug
- Patient Observation Other
- Questionnaire Administration Other
- Resection of Rectum Procedure
Drug · Other · Procedure
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 12, 2024
- Primary completion
- Oct 30, 2026
- Completion
- Oct 30, 2026
- Last update posted
- May 19, 2026
2024 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| M D Anderson Cancer Center | Houston | Texas | 77030 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03594630, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 19, 2026 · Synced May 21, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03594630 live on ClinicalTrials.gov.