ClinicalTrials.gg
RecruitingNCT07809893Updated Sep 9, 2026

Ivosidenib Plus mFOLFOXIRI and Celecoxib for BRAF-targeted Therapy-refractory BRAF V600E-mutant Colorectal Cancer Patients

A Phase 2 interventional study of Ivonescimab +mFOLFOXIRI +celecoxib in Colorectal Cancer, sponsored by Sun Yat-sen University. Recruiting at 1 site in China. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-09-09.

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

From the registry’s dates

  • Started Aug 2026; still recruiting 3 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
45
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 206 studies testing oxaliplatin in Colorectal Neoplasms — 21 open to participants now, 25 under way, 6 of them phase 3. Oxaliplatin · Colorectal Neoplasms.

Planned enrollment
99th of 183
45 · median 50
Started
2026
with 3 others
Phase 2
110 of 206
12 open now
Primary completion
2027-12
later than 19 of 24 live
Registered
205th of 206
by date

Among the 206 studies testing oxaliplatin in Colorectal Neoplasms, this one is the 99th largest by planned enrollment of the 183 interventional ones that give a count, is one of 4 that started in 2026, is one of 110 in phase 2, reaches primary completion later than 19 of the 24 other live ones, and was the 205th registered.

Colorectal Neoplasms

6,541 studies on the registry are indexed under Colorectal Neoplasms; 1,667 are open to participants now.

Browse Colorectal Neoplasms studies →

Open to participants now

21 of the 206 studies testing oxaliplatin in Colorectal Neoplasms are open now, in 12 countries. Recruiting first, the newest first:

15 more — sign in →

By country, each count listing its studies:

All 21 open studies →

About oxaliplatin

Oxaliplatin: first FDA approval 2002 (ELOXATIN). What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 1,185 Colorectal Neoplasms studies recruiting now, 769 (65%) set no upper age limit and 265 (22%) stop at 75 or younger; 48 take children under 18; 123 take healthy volunteers.

This study: 18 Years to 70 Years · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 206 studies testing oxaliplatin in Colorectal Neoplasms, or all of them as a file.
02

Study summary

BRAF-mutated colorectal cancer, primarily driven by the BRAF V600E mutation, accounts for approximately 5-10% of all colorectal cancer cases and is associated with aggressive disease progression and poor prognosis, particularly in metastatic settings. Following first- and second-line treatments, including chemotherapy and targeted therapy, the median overall survival of patients is typically less than 24 months, and tumor progression is rapid once resistance develops. Previous studies have demonstrated that immune checkpoint inhibitors, such as anti-PD-1 therapies, show limited efficacy in microsatellite-stable (MSS) colorectal cancers but may hold promise when combined with other agents to overcome resistance mechanisms. Ivonescimab, a bispecific antibody targeting PD-1 and VEGF, has shown antitumor activity in various solid tumors by simultaneously inhibiting immune evasion and angiogenesis. The combination of ivonescimab with intensive chemotherapy like FOLFOXIRI (folinic acid, 5-fluorouracil, oxaliplatin, and irinotecan) and the COX-2 inhibitor celecoxib aims to enhance antitumor immunity, reduce inflammation, and improve vascular normalization in resistant tumors. However, there are no reported studies on this specific combination for chemotherapy- and BRAF inhibitor-resistant BRAF-mutated colorectal cancer. Therefore, the aim of this study is to evaluate the efficacy and safety of ivonescimab combined with FOLFOXIRI and celecoxib in patients with chemotherapy- and BRAF inhibitor-resistant BRAF-mutated advanced colorectal cancer, with a focus on assessing objective response rate (ORR) and tolerability.

Read the detailed description

This study is a prospective, investigator-initiated, single-arm, phase II trial to evaluate the efficacy and safety of ivonescimab (AK112) combined with FOLFOXIRI and celecoxib in patients with BRAF-mutated advanced/metastatic colorectal cancer who have developed resistance to prior chemotherapy and BRAF inhibitors . The inclusion criteria: histologically confirmed BRAF V600E-mutated advanced or metastatic colorectal cancer; documented resistance/progression after at least one line of standard chemotherapy ( FOLFOX/FOLFIRI-based) and BRAF inhibitor-based targeted therapy; measurable disease per RECIST 1.1; ECOG performance status 0-1; adequate organ function; no active brain metastases or other uncontrolled comorbidities (specific criteria can be supplemented as needed). Patients received ivonescimab combined with mFOLFOXIRI (modified FOLFOXIRI regimen) and celecoxib for up to 6-8 cycles or until progression/toxicity, followed by maintenance therapy of continued ivonescimab with 5-FU/leucovorin and celecoxib. All patients will be evaluated every four cycles of treatment using imaging CT/MRI. The primary objective is to assess the objective response rate (ORR) per RECIST 1.1, with secondary endpoints including progression-free survival (PFS), disease control rate (DCR), safety profile, and exploratory biomarkers .

03

Conditions studied

  • Colorectal Cancer

Keywords

  • BRAF V600E mutation
04

Who can participate

Ages eligible
18 Years to 70 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

  1. Signed the form voluntarily.
  2. Aged 18-70.
  3. Colorectal adenocarcinoma with definite histological evidence, with evidence of distant ;
  4. Diagnosed with colon or rectal adenocarcinoma, with evidence of distant metastasis;
  5. Genetic testing indicates a BRAF V600E mutation;
  6. Previously received treatment including FOLFOX/CAPOX or FOLFIRI/CAPIRI and experienced disease progression or intolerance. Among them, patients who used oxaliplatin in therapy should have experienced disease progression within 12 months after completing adjuvant therapy; Previously received anti-BRAF V600E targeted therapy and failed, including but not limited to vemurafenib, dabrafenib, and encorafenib;
  7. Patients must have according to the (RECIST), version 1.1.
  8. Adequate organ function based on the following laboratory test values obtained within 7 days prior to treatment: ≥1.5×109/L, count ≥75×109/L, serum total ≤1.5× value (UNL), aspartate transferase ≤2.5×UNL, alanine transferase ≤2.5×UNL, serum creatinine ≤2.5×UNL;
  9. Female subjects must be either for at least 1 year, have undergone surgical sterilization at least 6 weeks prior, or must agree to use appropriate measures;
  10. Male subjects must agree to use appropriate contraceptive measures to prevent their partners from becoming pregnant;
  11. Willing and able to comply with research protocols and visit plans.

Exclusion criteria

Exclusion Criteria:

  1. Prior to enrollment, ctDNA testing shows known KRAS mutation, NRAS mutation, or gene amplification; tumor tissue testing shows mismatch repair gene deficiency or high microsatellite instability, KRAS mutation, NRAS mutation, or ERBB2 gene amplification;
  2. Presence of intestinal obstruction, active bleeding, or intestinal perforation requiring emergency intervention;
  3. Underwent major surgery or severe trauma in the previous 4 weeks;
  4. Active coronary artery disease, severe/unstable angina, or newly diagnosed angina or myocardial infarction within 12 months prior to study participation;
  5. Occurrence of thrombotic or embolic events within the past 6 months;
  6. (NYHA) class II or higher congestive heart failure;
  7. (HIV) infection or known acquired immunodeficiency syndrome (AIDS), untreated active hepatitis;
  8. Any active, known, or suspected disease.
  9. Presence of interstitial lung disease, non-infectious pneumonia, or uncontrolled systemic disease;
  10. Any unresolved treatment-related adverse events of grade 2 or higher according to the (CTCAE) version 5.0 (excluding peripheral neuropathy, anemia, hair loss, and skin pigmentation);
  11. Previous treatment with programmed cell death protein-1 () and its ligand (PD-L1) inhibitors or anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) antibodies;
  12. Known or suspected history of allergy to any of the related drugs used in the study;
  13. Pregnant or breastfeeding women.
Terms in these criteria, in plain language(18)

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.

Metastases

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

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

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.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

HER2

HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.

In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.

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.

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.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

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.

05

Study design

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

Study arms

  • Experimental
    Ivonescimab +mFOLFOXIRI +celecoxib

    Patients receive Ivonescimab and mFOLFOXIRI on day1 of every two weeks and celecoxib on day 1-14 of every two weeks

    Drug: Ivonescimab +mFOLFOXIRI +celecoxib

Interventions

  • DrugIvonescimab +mFOLFOXIRI +celecoxib

    Drug page: Oxaliplatin

    Ivonescimab(AK112)10mg/kg, intravenously for 60 minutes, followed by mFOLFOXIRI (oxaliplatin 85 mg/m2, irinotecan 150 mg/m2, and folinic acid 400 mg/m2 followed by 5-fluorouracil 2400mg/m2 as a 46-hour continuous infusion on day 1) every 2 weeks, celecoxib 400mg oral everyday.

    Also known as: Oxaliplatin, Irinotecan, 5-Fluorouracil, Leucovorin, Ivonescimab, celecoxib

06

What researchers measure

Primary outcomes

  1. Objective response rate (ORR)

    Defined as the proportion of patients who are assessed for best overall response as complete response (CR) or partial response (PR) according to RECIST version 1.1. If the response reaches CR or PR, it must be confirmed at least 4 weeks (28 days) after the initial evaluation.

    Time frame: 3 years

Secondary outcomes

  1. Disease control rate (DCR)

    Defined as the proportion of patients who are assessed for best overall response as CR or PR or stable disease (SD) according to RECIST version 1.1.

    Time frame: 3 years

  2. Progression-free survival (PFS)

    Defined as the time from enrollment to the first documented tumor progression (assessed according to RECIST version 1.1, regardless of whether treatment continues) or the date of death from any cause, whichever occurs first.

    Time frame: 3 years

  3. Overall survival (OS)

    Defined as the time from enrollment to death from any cause.

    Time frame: 3 years

  4. Number of participants with treatment-related adverse events as assessed by CTCAE v5.0

    Number of participants with treatment-related adverse events as assessed by CTCAE v5.0

    Time frame: 3 years

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2026 (actual). Primary completion is estimated for Dec 2027, 16 months after the start.

Of 498 non-industry phase 2 interventional studies under Colorectal Neoplasms, half reached primary completion within 55 months of starting (the median), counting those still running; a quarter within 33 and three quarters within 75. This study's planned 16 months is below that.

Counting every sponsor, half of 618 studies reached it within 49 months; a quarter within 31 and three quarters within 75.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 28, 2026
First posted
Sep 9, 2026
StartActual
Aug 10, 2026
Primary completionEst.
Dec 31, 2027
CompletionEst.
Jun 30, 2028
Last update
Sep 9, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 9, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07809893
Responsible party
Yanhong Deng (Director of Medical Oncology, Clinical Professor, Sun Yat-sen University) — Principal investigator
First posted
Sep 9, 2026
Start date
Aug 10, 2026
Primary completion
Dec 31, 2027 (estimated)
Completion
Jun 30, 2028 (estimated)
Last update
Sep 9, 2026

Study contacts

Yanhong Deng, M.D.
Contact
dengyanh@mail.sysu.edu.cn
00862019325106525
Zehua Wu
Contact
wuzh88@mail.sysu.edu.cn
00862015902020757
Yanhong Deng
principal investigator · Sixth Affiliated Hospital, Sun Yat-sen University

Oversight

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

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Studies of the drug tested here: Oxaliplatin

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