NCT05807984

Brief Summary

Prospective phase II clinical study aim to explore the clinical outcome of patients with unresectable locally recurrent rectal cancer (LRRC) treated with re-irradiation by carbon ion radiotherapy (CIRT)

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
31

participants targeted

Target at P25-P50 for phase_2

Timeline
8mo left

Started May 2023

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress82%
May 2023Dec 2026

First Submitted

Initial submission to the registry

February 16, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

April 11, 2023

Completed
20 days until next milestone

Study Start

First participant enrolled

May 1, 2023

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

April 11, 2023

Status Verified

April 1, 2023

Enrollment Period

2.7 years

First QC Date

February 16, 2023

Last Update Submit

April 7, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • local control

    local control rate of the lesion treated by CIRT

    Local control at 3 years after CIRT

Secondary Outcomes (2)

  • overall survival

    3 years after CIRT or patient died, measured erery 3 months after CIRT

  • progression free survival

    3 years after CIRT or patient died, measured erery 3 months after CIRT

Study Arms (1)

carbon ion therapy for unresectable local recurrent rectal cancer

EXPERIMENTAL
Radiation: Carbon ion radiation therapy DT: 74Gy/20 fractions

Interventions

patients with unresectable local recurrent rectal cancer will be treated with carbon ion radiation therapy as re-irradiation

carbon ion therapy for unresectable local recurrent rectal cancer

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • \) pathologically confirmed rectal adenocarcinoma (including mucinous adenocarcinoma and signet-ring cell carcinoma) and LRRC confirmed by biopsy or clinical diagnosis,
  • \) received a radical operation for their primary tumor and regional lymph nodes,
  • \) received chemo-radiation or radiation in pelvic before CIRT,
  • \) received re-irradiation by CIRT after their pelvic radiotherapy.

You may not qualify if:

  • \) received more than once prior radiotherapy in the same treatment field,
  • \) time to the last radiotherapy was \<1 year,
  • \) space between the lesion to organ at risk (OARs) (bladder or digestive tract) was too close (\<5 mm).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shanghai Proton and Heavy ion center

Shanghai, Pudong, 201321, China

Location

MeSH Terms

Conditions

Rectal NeoplasmsRecurrence

Condition Hierarchy (Ancestors)

Colorectal NeoplasmsIntestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesIntestinal DiseasesRectal DiseasesDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: carbon ion therapy
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Deputy chief physician

Study Record Dates

First Submitted

February 16, 2023

First Posted

April 11, 2023

Study Start

May 1, 2023

Primary Completion

December 31, 2025

Study Completion (Estimated)

December 31, 2026

Last Updated

April 11, 2023

Record last verified: 2023-04

Data Sharing

IPD Sharing
Will not share

Locations