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Efficacy of Helical Tomotherapy Combined with vNKT-Cell Adoptive Transfer in Postoperative Colorectal Cancer Patients with Liver Metastases After First-Line Therapy Failure

Efficacy of Helical Tomotherapy (TOMO) Combined with vNKT-Cell Adoptive Transfer in Postoperative Colorectal Cancer Patients with Liver Metastases After First-Line Therapy Failure: An Open-Label, Single-Arm, Phase II Clinical Trial

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500113030
Enrollment
Unknown
Registered
2025-11-24
Start date
2025-12-29
Completion date
Unknown
Last updated
2025-12-01

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

Conditions

Postoperated colorectal carcinoma liver metastasis

Interventions

Treatment Group:On the foundation of TOMO radiotherapy, patients will receive adjuvant adoptive transfer of vNKT cells. For liver metastases (solitary or multiple), stereotactic body radiation therapy

Sponsors

The Fourth People's Hospital of Zibo City
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: 1. Age 18-75 years, ECOG performance status 0-1 or KPS>= 70, and an expected survival of >= 6 months. 2. Pathologically confirmed colorectal adenocarcinoma with liver metastasis after failure of first-line therapy. 3. Phenotype of protein and gene testing is pMMR/MSS. The status of RAS/BRAF must be recorded (both wild-type and mutant are allowed). 4. Number of liver metastases = 1.5×10^9/L, PLT >= 75×10^9/L, Hb >= 90 g/L. Renal function: eGFR >= 60 mL/min/1.73m². 8. No active autoimmune diseases (e.g., rheumatoid arthritis, systemic lupus erythematosus), and no long-term use of immunosuppressive agents. 9. No history of severe allergies or prior immune therapy-related toxicities. 10. Willing to sign the informed consent form and able to comply with treatment and regular follow-up visits.

Exclusion criteria

Exclusion criteria: 1. Presence of uncontrolled brain metastases or extensive peritoneal metastases (bone metastases and pulmonary metastases amenable to radiotherapy are allowed). 2. Liver function classified as Child-Pugh grade B or C. 3. Patients with dMMR/MSI-H tumors. 4. Patients with active HIV infection. 5. History of immunotherapy within the past 6 months, including other adoptive cellular immunotherapies (e.g., NK cell therapy). 6. Receipt of chemotherapy or major surgery within 1 month, or palliative radiotherapy within 2 weeks prior to enrollment. 7. Comorbidities: (1)Cardiopulmonary conditions: NYHA Class III–IV heart failure or COPD GOLD stage 3–4. (2)Gastrointestinal risks: Active gastrointestinal bleeding, or risk of bowel obstruction or perforation. 8. Other exclusions: (1)Pregnancy/lactation: Pregnant or breastfeeding women. (2)History of malignancy: Concurrent malignancies other than non-melanoma skin cancer or carcinoma in situ. (3)Inability to comply with treatment or provide informed consent.

Design outcomes

Primary

MeasureTime frame
Objective Response Rate;

Secondary

MeasureTime frame
Disease Control Rate;Progression-Free Survival;Local Control Rate;Overall Survival;

Countries

China

Contacts

Public ContactWang Fanghan

The Fourth People's Hospital of Zibo City

saisai10@sina.com+86 139 6930 1600

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026