ClinicalTrials.gg
Not yet recruitingNCT07817888FOBEAR-iiUpdated Sep 14, 2026

mFOLFOXIRI Plus Bevacizumab for Organ Preservation in Locally Advanced Rectal Cancer

A Phase 2 interventional study of FOLFOXIRI + Bevacizumab in Phase 2 Study, sponsored by Sixth Affiliated Hospital, Sun Yat-sen University. Not yet recruiting. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-09-14.

Sponsored by Sixth Affiliated Hospital, Sun Yat-sen University · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
119
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study summary

Neoadjuvant mFOLFOXIRI plus bevacizumab may achieve tumor shrinkage and reduce micrometastases, offering a radiotherapy-free organ-preservation alternative for locally advanced rectal cancer. This phase II trial will enroll patients with stage II-III rectal cancer to receive six cycles of neoadjuvant mFOLFOXIRI plus bevacizumab, followed by watch-and-wait, local excision, or total mesorectal excision based on response.

Read the detailed description

Wait and watch following neoadjuvant chemoradiotherapy is a effective organ preservation strategy in locally advanced rectal cancer. However, radiotherapy is associated with significant pelvic organ toxicity and does not reduce the risk of distant metastasis. Neoadjuvant mFOLFOXIRI plus bevacizumab can achieve effective tumor shrinkage and might simultaneously reduce micrometastatic disease. On this basis, we here propose an active organ-preservation strategy using neoadjuvant mFOLFOXIRI plus bevacizumab in locally advanced rectal cancer. This multicenter, single-arm, phase II trial will enroll patients with stage II-III rectal cancer to receive six cycles of neoadjuvant mFOLFOXIRI plus bevacizumab. Based on clinical response after treatment, patients will undergo watch-and-wait, local excision, or total mesorectal excision. Post-treatment surveillance will combine imaging with tumor-informed circulating tumor DNA (ctDNA) monitoring. The primary endpoint is the 3-year disease-free survival rate. This study is expected to provide clinical evidence on the safety and efficacy of a radiotherapy-free active watch-and-wait strategy for rectal cancer.

02

Conditions studied

  • Phase 2 Study

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Keywords

  • RECTAL CANCER
  • ORGAN PRESERVATION
  • FOLFOXIRI
  • BEVACIZUMAB
03

In context

Rectal Neoplasms

2,400 studies on the registry are indexed under Rectal Neoplasms; 587 are open to participants now.

This study's planned enrollment of 119 is above the median of 65 across 1,751 interventional studies indexed under Rectal Neoplasms.

Browse Rectal Neoplasms studies →

Lead sponsor

Sixth Affiliated Hospital, Sun Yat-sen University is the lead sponsor of 217 studies on the registry; 111 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Sign the form and comply with the planned visits, study treatment, laboratory tests, and other trial procedures;
  • Age 18-75 years;
  • confirmed rectal adenocarcinoma;
  • The lower edge of the rectal tumor is \<10 cm from the anal verge (as assessed by pelvic MRI);
  • (ECOG) performance status of 0-1;
  • Willing to choose the "organ preservation" strategy according to the study protocol;
  • Locally staged as cTNM stage II-III (T3-4 with any N, or any T with N1-2) by contrast-enhanced pelvic MRI;
  • No prior antitumor therapy for colorectal cancer, including cytotoxic drugs, radiotherapy, molecular targeted therapy, , etc.;
  • Adequate organ function as indicated by the following laboratory values obtained during the screening period: white blood cell count ≥3×10⁹/L, ≥1.5×10⁹/L, count ≥75×10⁹/L, serum total ≤1.5× (ULN), or alanine aminotransferase ≤2.5× ULN, serum creatinine ≤1.5× ULN.

Exclusion criteria

Exclusion Criteria:

  • Distant (M1) confirmed by chest/abdominal/pelvic CT, pelvic MRI, or PET-CT;
  • Bowel obstruction, active gastrointestinal bleeding, or perforation caused by the tumor;
  • Tumor complicated by intestinal fistula or pelvic abscess;
  • Concurrent malignant tumors of other organ systems (except that have been curatively treated with no recurrence for more than 5 years, or carcinoma in situ that can be cured by adequate treatment);
  • Thrombotic or embolic events within 12 months prior to enrollment, such as cerebrovascular accident (including ), pulmonary embolism, or deep vein thrombosis;
  • Within 12 months prior to enrollment, any of the following: myocardial infarction, severe/unstable angina, (NYHA) class ≥ II cardiac dysfunction, supraventricular or ventricular arrhythmia, and symptomatic congestive heart failure;
  • Tumors diagnosed as mismatch repair-deficient (dMMR) or microsatellite instability-high (MSI-H) by immunohistochemistry or PCR;
  • Uncontrolled systemic infection or unexplained fever (>38.5°C) within 2 weeks prior to enrollment;
  • Concurrent presence of any of the following other diseases: (HIV) infection or acquired immunodeficiency syndrome (AIDS)-related illness; poorly controlled diseases including but not limited to non-infectious pneumonitis, diabetes mellitus, hypertension, pulmonary fibrosis, acute pneumonia, aneurysm, and coagulation disorders; or any other disease that, in the investigator's opinion, may affect the assessment of study endpoints;
  • Known or suspected allergy to the study drugs;
  • Pregnant or lactating women;
  • Patients with other serious physical or mental illnesses or laboratory abnormalities that may increase the risk of study participation, interfere with study results, or who are considered unsuitable for participation by the investigator.
Terms in these criteria, in plain language(15)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
119 participants (estimated)

Study arms

  • Experimental
    FOLFOXIRI+BEVA

    Patients will receive neoadjuvant mFOLFOXIRI plus bevacizumab for 6 cycles, with 14 days per cycle.

    Drug: FOLFOXIRI + Bevacizumab

Interventions

  • DrugFOLFOXIRI + Bevacizumab

    Drug page: Bevacizumab

    Oxaliplatin 85 mg/m² intravenous infusion over 180 minutes on day 1; irinotecan 150 mg/m² intravenous infusion over 90 minutes on day 1; leucovorin 400 mg/m² intravenous infusion over 120 minutes on day 1; 5-fluorouracil 2400 mg/m² continuous intravenous infusion over 46 hours; bevacizumab 5 mg/kg intravenous infusion over 30-90 minutes on day 1.

06

What researchers measure

Primary outcomes

  1. 3-year Disease Free Survival

    Time frame: From the enrollment to 3 years following enrollment

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 14, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07817888
Responsible party
Sponsor
First posted
Sep 14, 2026
Start date
Sep 30, 2026 (estimated)
Primary completion
Sep 30, 2028 (estimated)
Completion
Sep 30, 2031 (estimated)
Last update
Sep 14, 2026

Study contacts

Zerong Cai, M.D.
Contact
caizer@126.com
86-020-38455325

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Bevacizumab

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