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Study identifier: NCT06758830 Synced from ClinicalTrials.gov · July 29, 2026
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Total Neoadjuvant Therapy and Organ Preservation Versus Surgery for Rectal Cancer.

Condition: Rectal Cancer · Total Neoadjuvant Treatment · Neoadjuvant Therapy  ·  Sponsor: National Cancer Center Affiliate of Vilnius University Hospital Santaros Klinikos

PhasePhase 2/Phase 3
Planned participants400
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This study hypothesizes that approximately 50% of rectal cancer patients can preserve their rectum using a watch-and-wait strategy if they achieve a complete or near-complete clinical response to total neoadjuvant therapy (TNT). The objective is to determine whether the complications, quality of life, and survival rates of rectal cancer patients who have achieved a complete or near-complete clinical response to TNT, followed by a watch-and-wait approach, are comparable to those of patients who undergo surgery first. Additionally, the study aims to identify potential prognostic and predictive markers for rectal cancer and examine survival rates and factors influencing responses to chemoradiotherapy (CRT) or TNT. The study is divided into two parts: \*\*Part One:\*\* Participants with cT1N1, T2-T3 N0-1 rectal cancer, MRF-, and EMVI-, with surgery as one of the possible first-line treatment options, will be randomized into two groups. The experimental group will consist of participants receiving TNT, including CRT and consolidation chemotherapy (Ch). If these participants achieve a complete or near-complete clinical response, they will be observed using a watch-and-wait strategy, which is a non-operative approach. The control group will consist of participants who undergo surgical treatment initially. \*\*Part Two:\*\* All participants with rectal cancer who have received CRT or TNT will be included. Additionally, participants diagnosed with rectal cancer who are scheduled fo…

This description comes directly from the study's public registry record.

Talk to the study team

Ernestas Šileika, MD  ·  +37060950402  ·  ernestas.sileika@nvc.santa.lt

Audrius Dulskas, PhD  ·  +370 675 20094  ·  audrius.dulskas@gmail.com

Always discuss trial participation with your own doctor first.

Locations (1)

Nacional Cancer InstituteVilnius, LithuaniaRecruiting

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Source record: clinicaltrials.gov/study/NCT06758830