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iBTA-Rect Study

A Single-Arm Exploratory Study on the Application of In-Body Tissue Architecture (iBTA) Regenerative Therapy in Rectal Cancer Surgery - iBTA-Rect Study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs032250222
Enrollment
10
Registered
2025-07-08
Start date
2025-08-26
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients scheduled to undergo early second-stage stoma closure following rectal resection and tempor Rectal Neoplasms

Interventions

1.Create a subcutaneous pocket by making a small incision along the abdominal midline, then dissecting subdermal tissue towards the left and right to create the pocket. 2.Confirm the space required fo
D003107
Colorectal Surgery

Sponsors

Oda Tatsuya
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Patients diagnosed with primary rectal cancer, with the distal edge of the tumor located within 10 cm from the anal verge (regardless of whether preoperative treatment has been administered). 2. The anastomotic site is expected to be located within 6 cm from the anal verge. 3. Histological diagnosis of rectal adenocarcinoma or rectal neuroendocrine tumor confirmed by biopsy of the primary rectal lesion. 4. Scheduled to undergo elective surgery. 5. Aged 18 years or older at the time of informed consent. 6. Laboratory values within 30 days prior to enrollment indicate adequate organ function. 7. ECOG Performance Status of 0 or 1. 8. Written informed consent voluntarily provided by the patient for participation in this study. Notes: - Both open and laparoscopic surgeries are acceptable. - No restrictions on the type of reconstruction method. - No restrictions based on clinical stage. - Participation in other clinical trials related to surgical procedures is allowed; however, participation in trials involving investigational

Exclusion criteria

Exclusion criteria: 1.Patients requiring emergency surgery. 2.Cases not intended for curative treatment, where residual cancer cells are expected. 3.Patients receiving dialysis. 4.Patients receiving steroids or immunosuppressive agents. 5.Patients with poorly controlled diabetes mellitus (HbA1c > 7.5% within 30 days prior to enrollment). 6.Patients deemed ineligible for participation in this study by the attending physician.

Design outcomes

Primary

MeasureTime frame
Procedure Completion Rate from BCM1 Implantation to Engraftment at the Target Site Note: The procedure completion is defined as the successful accomplishment of the entire process, including the implantation of the device, formation of the bio-cocktail, removal of the device, intended use of the bio-cocktail, and engraftment into the tissue.

Secondary

MeasureTime frame
1.Percentage of subjects in whom bio-cocktail tissue was successfully formed. 2.Surface area of bio-cocktail collected. 3.Wound surface area and its reduction rate at the time of device implantation, bio-cocktail tissue filling, and at 4, 6, 8, 10, and 12 weeks after filling. 4.Percentage of subjects whose wounds healed by 4 and 8 weeks after bio-cocktail tissue filling. 5.Wound healing score using the Muchester scur scale at the time of bio-cocktail tissue filling, and at 4, 6, 8, 10, and 12 weeks after filling. 6.Incidence rate of diseases (adverse events). 7.Number of days from bio-cocktail tissue filling to discharge. 8.Colonoscopic findings at 4, 6, 8, 10, and 12 weeks after administration at the anastomosis site.

Contacts

Public ContactDaichi Kitaguchi

University of Tsukuba Hospital

dkitaguc@md.tsukuba.ac.jp+81-29-853-3221

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026