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A phase II/III randomized controlled trial comparing perioperative versus postoperative chemotherapy with mFOLFOX6 for lower rectal cancer with suspected lateral pelvic node metastasis (JCOG1310, PRECIOUS trial)

A phase II/III randomized controlled trial comparing perioperative versus postoperative chemotherapy with mFOLFOX6 for lower rectal cancer with suspected lateral pelvic node metastasis (JCOG1310, PRECIOUS trial) - A phase II/III randomized controlled trial comparing perioperative versus postoperative chemotherapy with mFOLFOX6 for lower rectal cancer with suspected lateral pelvic node metastasis (JCOG1310, PRECIOUS trial)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000017603
Enrollment
330
Registered
2015-05-18
Start date
2015-05-18
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

Lower rectal cancer with suspected lateral pelvic node metastasis

Interventions

A: T(S)ME+LND and postoperative chemotherapy (mFOLFOX 12 cycles) B: preoperative chemotherapy (mFOLFOX 6 cycles), T(S)ME+LND, and postoperative chemotherapy (mFOLFOX 6 cycles)

Sponsors

Japan Clinical Oncology Group (JCOG)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Pathologically proven adenocarcinoma or adenosquamous carcinoma 2. Primary tumor located at Upper rectum, Lower rectum, and Anal canal 3. The lower border of the tumor located between the peritoneal reflection and the anal verge 4. cT2, cT3, and cT4 tumor on contrast-enhanced CT or MRI, except T4b tumor invading the trigone of bladder, urethra, or sacrum 5. Lateral lymph nodes with 10mm or more in short axis diameter on contrast-enhanced CT or MRI data of 5mm-thickness slices (cN3) 6. No distant metastasis on contrast-enhanced CT or MRI (cM0) 7. Aged 20 to 74 years old 8. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 9. No prior chemotherapy or treatment such as rectal resection, pelvic lymph node dissection, or pelvic irradiation for any malignancies 10. No other colorectal carcinoma, except cTis or cT1a 11. Adequate organ function as evidenced by the following laboratory studies within 14 days prior to enrollment 1) Neutrophil count >= 1,500 /mm3 2) Platelet count >= 100,000 /mm3 3) T.Bil =< 2.0 mg/dL 4) AST =< 100 IU/L 5) ALT =< 100 IU/L 6) Cr =< 1.5 mg/dL 12. Open surgery will be performed 13. Written informed consent

Exclusion criteria

Exclusion criteria: 1) Synchronous or metachronous (within 5 years) malignancies other than carcinoma in situ or mucosal carcinoma 2) Infectious disease to be treated 3) Positive for HBs antigen 4) Body temperature >= 38 degrees Celsius 5) Women during pregnancy, possible pregnancy or breast-feeding 6) Severe mental disease 7) Currently treated with systemic steroids or immunosuppressive agents 8) Interstitial pneumonia, pulmonary fibrosis, or severe emphysema on chest CT 9) Uncontrollable diabetes mellitus or routine administration of insulin 10) Unstable angina pectoris or previous myocardial infarction within the past 6 months

Design outcomes

Primary

MeasureTime frame
Phase II: Proportion of patients with R0 resection, Phase III: Overall survival

Secondary

MeasureTime frame
Phase II part: Proportion of operative complication, Proportion of patients who complete 12 cycles of chemotherapy Phase III part: Progression-free survival, Local progression-free survival, Proportion of patients with R0 resection, Overall response rate of preoperative chemotherapy (Group B), Pathological complete response rate (Group B), Proportion of patients who complete 12 cycles of chemotherapy, Incidence of adverse events, Incidence of serious adverse events, Proportion of operative complication, Proportion of preservation of adjacent organs, Proportion of anus-preservation, Proportion of anus-preservation without stoma

Countries

Japan

Contacts

Public ContactMasayuki Ohue, Satoru Iwasa

JCOG1310 Coordinating Office (1)Osaka Medical Center for Cancer & Cardiovascular Diseases (2)National Cancer Center Hospital

JCOG_sir@ml.jcog.jp(1)06-6879-3251(2)03-3542-2511

Outcome results

None listed

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