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ClinicalTrials.gov ID

NCT06529718

Lead Sponsor

UNICANCEROTHER

Overall Status

Recruiting

Study Type

Interventional

Phase

Phase 2

Enrollment

72Estimated

Last Update Posted

May 19, 2026Actual

Start Date

Oct 9, 2025Actual

Primary Completion Date

Aug 3, 2027Estimated

Completion Date

Jan 30, 2029Estimated

Official Title

A Randomised, Phase II Trial to Evaluate the Efficacy of Ivonescimab, a PD 1/VEGF Bispecific Antibody, Versus FOLFOX as Second Line Therapy for Locally Advanced/Metastatic Biliary Cancers

Brief Summary

The object of this trial is to test whether ivonescimab is superior to standard chemotherapy (FOLFOX regimen) for the treatment of patients with advanced biliary tract cancer after failure of a first line of chemotherapy. It is only open to patients who participated in the SAFIR-ABC10 trial (NCT05615818) but did not receive experimental treatment.

Eligible patients will be randomised (2:1) to receive either ivonescimab or FOLFOX. Treatment will be continued until disease progression, or a maximum of 34 cycles of ivonescimab (experimental arm), whichever occurs first.

Detailed Description

This is a Phase 2, multicentre, randomised, two-arm, open-label trial to evaluate whether ivonescimab is superior to standard second-line chemotherapy in the treatment of patients with advanced biliary tract cancer.

The trial will be open to patients who participated in the screening phase of the SAFIR-ABC10 protocol (NCT05615818) and who experienced disease progression on or following the first-line standard of care (CISGEM regimen).

A total of 72 patients will be enrolled and randomly assigned (2:1) to receive treatment with either:

• Experimental arm: Ivonescimab 20 mg/kg by intravenous infusion (IV) once every 3 weeks (Q3W).
• Control arm: Standard second-line chemotherapy - FOLFOX regimen Response to treatment will be assessed according to RECIST v1.1 by radiographic exams performed every 42 (±7) days. Patients will continue treatment until disease progression or for a maximum of 34 cycles of ivonescimab (experimental arm), whichever occurs first.

• Biliary Tract Cancer

• Ivonescimab
• FOLFOX regimen

Ages Eligible for Study

Adult (18-64)Older Adult (65+)

Sexes Eligible for Study

All

Accepts Healthy Volunteers

No

Eligibility Criteria

Inclusion Criteria:

1. Signed a written informed consent form prior to any trial specific procedures.

2. Histologically-proven intrahepatic cholangiocarcinoma, perihilar / distal cholangiocarcinoma, or gallbladder carcinoma (ampullary carcinoma excluded).

3. Locally advanced (non-resectable) or metastatic disease.

4. Participated in the Screening phase of the SAFIR-ABC10 trial.

5. Progression after first line standard of care (1L-SoC) regimen (CISGEM ± immunotherapy) as assessed by the investigator.

6. Eligible for second-line treatment with FOLFOX.

7. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

8. Presence of at least one evaluable lesion according to RECIST v1.1.

9. Age ≥18 years.

10. Adequate bone marrow function: absolute neutrophil count (ANC) ≥2 × 10⁹/L, platelet count ≥100 × 10⁹/L, and haemoglobin ≥9 g/dL.

    Note: Blood transfusion or growth factor therapy should not be performed within 7 days prior to the screening haematology analysis.

11. Adequate liver function: total bilirubin level ≤1.5 × the upper limit of normal (ULN) range (≤3 x ULN for patients with liver metastases or confirmed/suspected Gilbert syndrome, and aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels ≤2.5 × ULN (AST and ALT ≤5 x ULN when documented liver metastasis).

12. Adequate renal function: estimated creatinine clearance ≥50 mL/min according to the Cockcroft-Gault formula, or estimated glomerular filtration rate value ≥50 mL/min using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation, and urine protein < 2+ or 24 hour urine protein quantification < 1.0 g.

13. Coagulation: prothrombin time (PT) or international normalized ratio (INR) ≤ 1.5 x ULN, and partial prothrombin time (PTT) or activated PTT ≤ 1.5 × ULN (unless abnormalities are unrelated to coagulopathy,or prophylactic coagulation).

14. Adequate cardiac function: left ventricular ejection fraction (LVEF) ≥50% at baseline as determined by either echocardiogram or multigated acquisition (MUGA) scan.

15. Documented virology status of hepatitis, as confirmed by screening hepatitis B virus (HBV) and hepatitis C virus (HCV) tests: For patients with active HBV: HBV DNA <500 IU/ml during screening, initiation of anti-HBV treatment at least 14 days prior to randomization and willingness to continue anti-HBV treatment during the study (per local standard of care; e.g., entecavir). For patients with HCV, either with resolved infection (as evidenced by detectable antibody) or chronic infection (as evidence by detectable HCV RNA), are eligible.

16. Performance of an esophagogastroduodenoscopy within 6 months of inclusion and assessment and treatment of varices of all sizes per local standard of care prior to randomisation.

17. Biliary tract obstruction has been relieved.

18. Adequate biliary drainage, with no evidence of ongoing infection.

19. Women of childbearing potential (WOCBP) having sex with an unsterilized male partner and unsterilized males having sex with a female partner of childbearing potential, must agree to use an effective method of contraception for the duration of trial participation and as required after completing study treatment. Men must also agree to not donate sperm and women must agree to not donate oocytes during the specified period.

20. WOCBP must have a negative serum pregnancy test performed within 3 days before randomisation and a negative urine pregnancy test on the day of first dose, prior to treatment administration.

21. Willing and able to comply with the protocol for the duration of the study including scheduled visits, treatment plan, laboratory tests, and other study procedures.

22. Affiliated to a social security system or in possession of equivalent private health insurance (according to local regulations for participation in clinical trials).

Exclusion Criteria:

1. Toxicities from 1L-SoC not resolved to Grade ≤ 1 (according to version 5.0 of the National Cancer Institute - Common terminology criteria for adverse events [NCI-CTCAE v5.0]) before randomisation with the exception of alopecia.

2. Received first-line maintenance therapy with a matched target therapy proposed in SAFIR ABC10, or any second-line treatment.

3. Contraindication to ivonescimab.

4. Proven complete deficiency of dihydropyrimidine dehydrogenase (DPD).

5. Treatment with brivudine, sorivudine or their chemical analogues in the 4 weeks prior to randomisation.

6. Major surgical procedures or serious trauma within 4 weeks prior to randomisation, or plans for major surgery within 4 weeks after the first dose (as determined by the investigator). Minor local procedures (excluding central venous catheterisation and port implantation) within 3 days prior to randomisation.

7. History of bleeding tendencies or coagulopathy and/or clinically significant bleeding symptoms or risk within 4 weeks prior to randomisation, including but not limited to:

   1. Gastrointestinal bleeding.

   2. Haemoptysis (defined as coughing up ≥ 0.5 teaspoon of fresh blood or small blood clots).

      Note: transient haemoptysis associated with diagnostic bronchoscopy is allowed.

   3. Nasal bleeding /epistaxis (bloody nasal discharge is allowed).

   4. Need for therapeutic anticoagulant therapy within 14 days prior to randomization.

   Note: Prophylactic anticoagulation for deep vein thrombosis or pulmonary embolism or to maintain venous patency is allowed.

8. Current hypertension with systolic blood pressure ≥ 150 mmHg or diastolic blood pressure ≥ 100 mmHg after oral antihypertensive therapy.

9. History of major diseases before randomization, specifically:

   1. Unstable angina, myocardial infarction, congestive heart failure (New York Heart Association classification ≥ grade 2) or vascular disease (eg, aortic aneurysm at risk of rupture) that required hospitalization within 12 months prior to randomization, or other cardiac impairment that may affect the safety evaluation of the study drug (eg, poorly controlled arrhythmias, myocardial ischemia),
   2. History of oesophageal gastric varices, severe ulcers, wounds that do not heal, abdominal fistula, intra-abdominal abscesses, or acute gastrointestinal bleeding within 6 months before randomisation,
   3. History of arterial thromboembolic event, venous thromboembolic event of Grade 3 and above as specified in NCI-CTCAE v5.0, transient ischemic attack, cerebrovascular accident, hypertensive crisis, or hypertensive encephalopathy within 6 months prior to randomization,
   4. Acute exacerbation of chronic obstructive pulmonary disease within 4 weeks before randomisation,
   5. History of perforation of the gastrointestinal tract and/or fistula, history of gastrointestinal obstruction (including incomplete intestinal obstruction requiring parenteral nutrition), extensive bowel resection (partial colectomy or extensive small bowel resection) within 6 months prior to randomisation.

10. Imaging during the screening period shows that the patient has:

    1. Radiologically documented evidence of major blood vessel invasion or encasement by cancer,
    2. Radiographic evidence of intra-tumour cavitation.

11. Microsatellite instability positive disease.

12. Concurrent malignancy (other than advanced biliary tract cancer), with the exception of adequately treated cone-biopsied in situ carcinoma of the cervix uteri and basal or squamous cell carcinoma of the skin. Cancer survivors, who have undergone potentially curative therapy for a prior malignancy, have no evidence of that disease for 5 years or more and are deemed at negligible risk for recurrence, are eligible for the trial.

13. HIV positive (HIV 1/2 antibodies patients), or a known history of active Tuberculosis bacillus.

14. Any immunosuppressive therapy (i.e. corticosteroids >10mg of hydrocortisone or equivalent dose) within 14 days before the planned start of study therapy.

15. Active autoimmune disease that has required a systemic treatment in past 2 years (i.e. corticosteroids or immunosuppressive drugs). Replacement therapy (e.g. thyroxine, insulin) is allowed active or history of autoimmune disease or immune deficiency, including, but not limited to, myasthenia gravis, myositis, autoimmune hepatitis, systemic lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, antiphospholipid antibody syndrome, Wegener granulomatosis, Sjögren syndrome, Guillain-Barré syndrome, or multiple sclerosis, with the following exceptions:

    1. Patients with a history of autoimmune-related hypothyroidism who are on thyroid replacement hormone are eligible for the study,

    2. Patients with controlled Type 1 diabetes mellitus who are on an insulin regimen are eligible for the study,

    3. Patients with eczema, psoriasis, lichen simplex chronicus, or vitiligo with dermatologic manifestations only (e.g., patients with psoriatic arthritis are excluded) are eligible for the study provided all of following conditions are met:

       • Rash must cover < 10% of body surface area,
       • Disease is well controlled at baseline and requires only low-potency topical corticosteroids,
       • No occurrence of acute exacerbations of the underlying condition requiring psoralen plus ultraviolet A radiation, methotrexate, retinoids, biologic agents, oral calcineurin inhibitors, or high potency or oral corticosteroids within the previous 12 months.

16. Prior allogeneic bone marrow transplantation or prior solid organ transplantation.

17. Any condition which in the Investigator's opinion makes it undesirable for the subject to participate in the trial or which would jeopardize compliance with the protocol.

18. Pregnant or breast-feeding females.

19. Participation in another therapeutic trial within the 30 days prior to entering the study. Participation in an observational trial would be acceptable.

20. Patients unwilling or unable to comply with the medical follow-up required by the trial because of geographic, familial, social, or psychological reasons.

21. Individuals deprived of liberty or placed under protective custody or guardianship.

Primary Purpose

Treatment

Allocation

Randomized

Interventional Model

Parallel Assignment

Masking

None (Open Label)

Lead Sponsor

UNICANCEROTHER

Collaborators

Cancer Research UK & UCL Cancer Trials CentreOTHER

Belgian Group of Digestive OncologyOTHER

Summit TherapeuticsINDUSTRY

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