Inulin Gel in Combination With Ipilimumab and Nivolumab for the Treatment of Metastatic or Locally Advanced Kidney Cell Cancer, ICON Trial

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Michigan Rogel Cancer Center

About this trial

This phase I/II trial tests the safety and effectiveness of inulin gel in combination with ipilimumab and nivolumab in treating patients with kidney cell cancer (renal cell carcinoma \[RCC\]) that has spread from where it first started (primary site) to other places in the body (metastatic) or has spread to nearby tissue or lymph nodes (locally advanced). Inulin is a common food additive fermentable prebiotic fiber beneficial for a healthy gut microbiome. The microbiome is the collection of all microbes, such as bacteria, fungi, viruses, and their genes, that naturally live on and inside the body. Inulin may also be used for cancer prevention and heart health, but there is less evidence to support those uses. The gut microbiome profile may improve the effectiveness of drugs called immune checkpoint inhibitors, such as ipilimumab and nivolumab. Immunotherapy with monoclonal antibodies, such as ipilimumab and nivolumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving inulin gel in combination with ipilimumab and nivolumab may be safe and effective in treating in patients with metastatic or locally advanced RCC.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patient is ≥ 18 years of age on the day of signing informed consent.

Candidate for ipilimumab and nivolumab therapy for metastatic renal cancer per the treating physician investigator.

Patient has a performance status of ≤ 2 on the Zubrod performance scale.

Patient has a histological or cytological diagnosis of renal cancer with clear cell or sarcomatoid component.

Disqualifiers

The subject has received cytotoxic therapy (including investigational cytotoxic chemotherapy) or biologic agents (e.g., cytokines or antibodies) or immunosuppressants (excluding steroids) within 4 weeks or antibiotics within 2 weeks of starting study therapy.

Patient is currently enrolled in another clinical trial testing another investigational agent, or concurrently in another approved systemic anti-cancer therapy for renal cancer.

Patient is on chronic systemic steroid therapy at doses > 10 mg/day prednisone equivalent or on any other immunosuppressive therapy within 7 days prior to day 1 of therapy. Exception-Replacement steroid doses for adrenal insufficiency are permitted as necessary.

Subjects with active and uncontrolled autoimmune disease. Subjects with type I diabetes mellitus, residual hypothyroidism due to autoimmune thyroiditis only requiring hormone replacement, skin disorders (such as vitiligo, psoriasis, or alopecia) not requiring systemic treatment are permitted to enroll.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Biopsy

    Procedure/Surgery

    Undergo biopsy

  • Biospecimen Collection

    Procedure/Surgery

    Undergo blood sample collection

  • Computed Tomography

    Procedure/Surgery

    Undergo CT

  • Inulin

    Dietary supplement

    Given PO

  • Ipilimumab

    Biological/Vaccine

    Given IV

  • Magnetic Resonance Imaging

    Procedure/Surgery

    Undergo MRI

  • Nivolumab

    Biological/Vaccine

    Given IV

  • Questionnaire Administration

    Other intervention

    Ancillary studies

Treatment groups

55 Participants
are divided into 2 treatment groups
Group A: Arm A (nivolumab, ipilimumab)Experimental treatment 7 interventions
Group B: Safety run-in & Arm B (nivolumab, ipilimumab, inulin gel)Experimental treatment 8 interventions

Trial outcomes

Primary outcomes

1

6-month progression free survival (PFS)

Will give an estimate and 95% confidence interval for the difference in the 6-month PFS rate between the combination arm and the single agent arm. This will be determined using binomial statistics. To allow for possible variability in the timing of the 6-month progression assessment, the 6-month PFS rate will be defined as the Kaplan-Meier estimate at 200 days after treatment initiation.

Time frame
At 6 months
2

Incidence of inulin gel related adverse events

Will be reported descriptively. Toxicity will be assessed according to the Common Terminology Criteria for Adverse Events (CTCAE), version 5.0.

Time frame
Up to 30 days after the last dose of inulin gel

Secondary outcomes

1

Overall response rate

Will be assessed per Response Evaluation Criteria in Solid Tumors 1.1 criteria. An exact test for binomial proportion will be used. Will be assessed descriptively. Will be estimated with 95% confidence interval. Binomial statistics will be used for the binary outcomes.

Time frame
From the time measurement criteria are met for complete response or partial response (whichever is first recorded) until the first date that recurrent or progressive disease is objectively documented, assessed up to 3 years
2

Incidence of adverse events

Toxicity will be assessed according to the CTCAE, version 5.0.

Time frame
Up to 30 days after the last dose of treatment
3

PFS

Will be assessed descriptively. Will be estimated with 95% confidence intervals, for each treatment group separately. Kaplan-Meier plots for the time-to-event outcomes.

Time frame
From treatment start date to date of first documented disease relapse/progression, or death from cancer whichever occurs first, assessed up to 3 years
4

Overall survival

Will be assessed descriptively. Will be estimated with 95% confidence intervals, for each treatment group separately. Kaplan-Meier plots for the time-to-event outcomes.

Time frame
From treatment start date to death or last follow up, assessed up to 3 years

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University of Michigan Rogel Cancer Center

Lead sponsor

United States Department of Defense

Collaborator