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Study of NALIRIFOX in Advanced Unresectable Small Bowel Tumors

  • PhasePhase 2
  • StatusRecruiting
  • Planned enrollment36 people
  • Recruiting US sites7
  • SponsorTiago Biachi de Castria
  • RegistryNCT06835387

Recruitment re-checked on ClinicalTrials.gov Oct 30, 2026. Public record; not medical advice.

Study of NALIRIFOX in Advanced Unresectable Small Bowel Tumors: a one-minute explainerNCT068353871 min

Eligibility

Who can join

The film gives the main points. The full list below is copied from the registry; the study team makes the final decision.

  • Age18 Years to no maximum
  • SexAll
  • Healthy volunteersNo

You may be able to join if

  • Subject has been informed about the nature of the study, and has agreed to participate in the study, and signed the ICF prior to participation in any study-related activities. Also, as determined by the enrolling physician or protocol designee, ability of the subject to understand and comply with study procedures for the entire length of the study.
  • Age ≥ 18 years at the time of consent.
  • ECOG Performance Status of ≤ 1 within 28 days prior to registration.
  • Histological or cytologically confirmed small bowel adenocarcinoma per AJCC staging manual, 8th edition that has not been previously treated in the metastatic setting. Subjects with only localized disease or disease which will likely become resectable after chemotherapy (per investigator discretion) are NOT eligible. NOTE: Subjects may have received one cycle of FOLFOX without biologic therapy prior to screening for this trial.
  • Mismatch repair proficient (MMRp) and/or microsatellite stable (MSS) disease per institutional standard of care testing. NOTE: Testing should be performed prior to receipt of one cycle of FOLFOX.
  • Subject has one or more metastatic lesion(s) measurable by CT scan (or MRI, if the subject is allergic to CT contrast media) according to RECIST Version 1.1 criteria. Lesions in a prior radiation field must have progressed subsequent to radiotherapy to be considered measurable.
  • Demonstrate adequate organ function as defined below. All screening labs to be obtained within 28 days prior to registration.
  • Platelets (Plt) ≥ 100,000 cells/mm3
  • Absolute Neutrophil Count (ANC) ≥ 1,500 cells/mm3; without the use of hemopoietic growth factors
  • Hemoglobin (Hgb) ≥ 9 g/dL
  • Calculated creatinine clearance ≥ 30 mL/min; Cockcroft-Gault formula for actual body weight should be used for calculation. For subjects with a body mass index (BMI) > 30 kg/m2, adjusted body weight should be used instead
  • Total bilirubin ≤ 1.5 × ULN
  • Aspartate aminotransferase (AST) ≤ 2 × ULN; < 5× with liver metastases
  • Alanine aminotransferase (ALT) ≤ 2 × ULN; < 5× with liver metastases
  • Albumin ≥ 2.5 gm/dL
  • PT/INR and aPTT ≤ 1.5 x ULN; subjects on warfarin or other vitamin K antagonists should be discussed with the sponsor-investigator.
  • Urinalysis: Urinalysis results without clinically significant abnormalities, per the investigator's assessment
  • Subjects treated in the adjuvant setting who completed treatment > 6 months prior to registration and do not have residual toxicities > Grade 1 are eligible.
  • Electrocardiogram (ECG) without any clinically significant findings (QT interval corrected by Fridericia's formula (QTcF) ≤450 msec and no known arrhythmias) and per the investigator's assessment.
  • Females of childbearing potential must have a negative urine or serum pregnancy test within ≤ 7 days prior to registration. If a urine test is done and it is positive or cannot be confirmed as negative, a serum pregnancy test will be required.
  • Females of childbearing potential who are sexually active with a male able to father a child must be willing to abstain from penile-vaginal intercourse or use an effective method(s) of contraception. Males able to father a child who are sexually active with a female of childbearing potential must be willing to abstain from penile-vaginal intercourse or use an effective method(s) of contraception.
  • Subjects with known human immunodeficiency virus (HIV) are eligible if they meet all the following criteria:
  • CD4 count is ≥350 cells/uL, viral load is undetectable, and not taking prohibited cytochrome (CYP)-interacting medications;
  • Probable long-term survival with HIV if cancer were not present;
  • Stable on a highly active antiretroviral therapy (HAART) regimen for ≥ 4 weeks and willing to adhere to their HAART regimen with minimal overlapping toxicity and drug-drug interactions with the experimental agents in this study;
  • HIV is not multi-drug resistant;
  • Taking medication and/or receiving antiretroviral therapy that does not interact or have overlapping toxicities with the study medication.
  • NOTE: Testing for HIV is not required at screening unless mandated by local policy. If a subject is known to be HIV positive, testing is required as described above to meet eligibility requirements.
  • Subjects with known chronic hepatitis B virus (HBV) infection, must have an undetectable HBV viral load on suppressive therapy, if indicated. Subjects with a history of hepatitis C virus (HCV) infection must have been treated and cured. For subjects with HCV infection who are currently on treatment, the HCV viral load must be undetectable to be eligible for this trial. NOTE: Testing for HBV and HCV is not required at screening unless mandated by local policy. If a subject is known to have an HBV and/or HCV infection, testing is required as described above to meet eligibility requirements.

You cannot join if

  • Adenocarcinoma originating in the ampulla or appendix. NOTE: Duodenal tumors that involve the ampulla but originate in the duodenum are eligible. In addition, ampullary cancers that demonstrate an intestinal phenotype based on H&E and/or IHC (excluding biliary phenotype) are eligible.
  • Neuroendocrine or any other histology different than adenocarcinoma.
  • Prior treatment with irinotecan.
  • Prior treatment of small bowel adenocarcinoma (SBA) in the metastatic setting with surgery, radiotherapy, chemotherapy or investigational therapy:
  • Palliative radiotherapy is permitted but lesions in a prior radiation field must have progressed subsequent to radiotherapy to be considered measurable.
  • Placement of biliary stent/tube is permitted.
  • Palliative surgery (for example to treat obstruction)
  • Known history of central nervous system (CNS) metastases. NOTE: Subjects on a stable or decreasing dose of steroids that are deemed clinically stable as per the investigator's assessment may be eligible, providing they meet all inclusion and exclusion criteria.
  • Clinically significant gastrointestinal disorder including hepatic disorders, bleeding, inflammation, occlusion, diarrhea > Grade 1, malabsorption syndrome, ulcerative colitis, inflammatory bowel disease, or bowel obstruction.
  • Pregnant or breastfeeding. NOTE: breast milk cannot be stored for future use while the mother is being treated on study.
  • Subjects with an active malignancy in the last 2 years. The following subjects may be eligible: Subjects with prior history of in-situ cancer or basal or squamous cell skin cancer. Subjects with a history of other malignancies but have been continuously disease free for at least 2 years without treatment prior to registration.
  • Known hypersensitivity to any of the components of nanoliposomal irinotecan, other liposomal products, or any components of 5-FU, LV or oxaliplatin.
  • Concurrent illnesses that would be a relative contraindication to trial participation such as active cardiac or liver disease, including:
  • Severe arterial thromboembolic events (myocardial infarction, unstable angina pectoris, stroke) less than 6 months before registration
  • High cardiovascular risk, including, but not limited to, recent coronary stenting or myocardial infarction in the past year prior to registration
  • New York Heart Association (NYHA) Class III or IV congestive heart failure, ventricular arrhythmias or uncontrolled blood pressure
  • Active infection or an unexplained fever >38.5°C during screening visits or on the first scheduled day of dosing (at the discretion of the investigator, subjects with tumor fever may be enrolled), which in the investigator's opinion might compromise the subject's participation in the study or affect the study outcome.
  • Major surgery, other than diagnostic surgery, within 4 weeks prior to registration.
  • Use of strong inhibitors or inducers of CYP3A, CYP2C8 and UGT1A1. Subjects are ineligible if:
  • they are unable to discontinue the use of strong inhibitors of CYP3A, CYP2C8 and UGT1A1 at least 1 week prior to registration;
  • they are unable to discontinue the use of strong CYP3A and CYP2C8 inducers at least 2 weeks prior to registration;
  • There is presence of any contraindications outlined in the Contraindications or Warnings and Precautions sections of the IB for nanoliposomal irinotecan, or in the prescribing information for 5-FU, LV or oxaliplatin.
  • Subjects who, in the opinion of the investigator, have symptoms or signs suggestive of clinically unacceptable deterioration of the primary disease at the time of screening.
  • History of systemic connective tissue disorders (e.g. lupus, scleroderma, arteritis nodosa).
  • Subjects who have received a live vaccine within 4 weeks prior to registration.
  • History of the following: interstitial lung disease, slowly progressive dyspnea and unproductive cough, sarcoidosis, silicosis, idiopathic pulmonary fibrosis, pulmonary hypersensitivity pneumonitis or multiple allergies, and peripheral artery disease (e.g. claudication, Leo Buerger's disease).
  • Known complete (poor metabolizer) DPD/DYPD deficiency. Pre-treatment testing for DPYD variants (genotyping) is strongly recomended (or required by local regulations) prior to initiating fluoropyrimidines. Pre-treatment UGT1A1 genotyping may also be considered.

The treatment

How it is intended to work

This is how the treatment is meant to work. Whether it helps, and how safe it is, is what this trial is testing.

irinotecan sucrosofate. A liposomal dispersion formulated with the semisynthetic camptothecin analogue irinotecan, provided as the hydrochloride trihydrate form, which is encapsulated and entrapped within liposomes in a gelated or precipitated state as the irinotecan sucrose octasulfate (sucrosulfate) salt form, with potential antineoplastic activity. Upon administration of the liposomes containing irinotecan sucrosulfate, irinotecan, a prodrug, is converted to a biologically active metabolite 7-ethyl-10-hydroxy-camptothecin (SN-38) by a carboxylesterase-converting enzyme. During the S-phase, SN-38 inhibits topoisomerase I activity by stabilizing the cleavable complex between topoisomerase I and DNA, inhibiting religation of topoisomerase I-mediated single-strand DNA breaks and producing lethal double-strand DNA breaks when complexes are encountered by the DNA replication machinery. Liposome encapsulation of this agent promotes efficient drug delivery into the cytosol from the endosome compartment of the cell, extends the circulation of irinotecan, and prolongs the duration of active therapy at the site of tumor to inhibit tumor growth. NCI Drug Dictionary

Treatments listed in the registry

  • Nanoliposomal irinotecan (Drug): Nanoliposomal Irinotecan 50 mg/m2 will be administered over 90 minutes (± 10 minutes) IV. All subjects must be pre-medicated prior to nanoliposomal irinotecan infusion with standard doses of dexamethasone and a 5-HT3 antagonist, or equivalent other anti-emetics (according to standard institutional practices).
  • Oxaliplatin (Drug): Oxaliplatin 60 mg/m2 will be administered over 120 minutes (± 10 minutes) IV. Institutional standards may be used for all aspects of oxaliplatin administration including premedication administration.
  • 5 fluorouracil (Drug): 5-FU will be administered as a continuous infusion over 46 hours. Subjects will go home with an infusion pump and return to clinic at the end of infusion for removal of the pump or, if possible, the pump may be removed at the subject's home (except on Cycle 1 Day 3).
  • Leucovorin (Drug): Leucovorin 400 mg/m2 will be administered over 30 minutes IV.

The study

Treatment groups

Na · Single Group · masking: None

NALIRIFOX and De-escalated maintenance (Experimental)

Cycle 1 to Cycle 6: NALIRIFOX Subjects will receive treatment on Day 1 and Day 15 of each 28-day cycle consisting of the following: nanoliposomal irinotecan at 50 mg/m2, followed by oxaliplatin 60 mg/m2, followed by leucovorin at 400 mg/m2 30 minutes after completion of oxaliplatin, followed by 5-FU 2400 mg/m2 60 minutes after leucovorin completion. Patients will receive up to 6 cycles of NALIRIFOX. Cycle 7+: De-escalated Maintenance: Based on response to Cycles 1-6 and per physician discretion, de-escalated maintenance treatment with NALIRIFOX minus oxaliplatin may continue as de-escalated maintenance treatment until progression per RECIST 1.1, intolerable toxicity or physician/subject choice to discontinue.

Goals

What the study measures

Main goals

  • Objective Response Rate (ORR) (3 years)

Other goals

  • Overall Survival (OS)
  • Time to Progression (TTP)
  • Duration of Response (DOR)
  • Number of Participants with Adverse Events

Planned enrollment: 36 (estimated).

Where

Recruiting US sites

  • Moffitt Cancer Center, Tampa, Florida
  • University of Illinois Cancer Center, Chicago, Illinois
  • Parkview Research Center, Fort Wayne, Indiana
  • Washington University School of Medicine, St Louis, Missouri
  • Atlantic Health System, Morristown, New Jersey
  • University of Texas Southwestern Medical Center, Dallas, Texas
  • Virginia Commonwealth University, Richmond, Virginia

Site status as of Oct 30, 2026. Check the live record before contacting a site.

Sources

Where this comes from

Registry record reviewed as fetched Oct 30, 2026, last updated by the sponsor Jul 27, 2026. Public record; not medical advice.

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