Clinical trial • Phase II • Oncology

INTESTIFIX for Hepatocellular carcinoma|Non-resectable hepatocellular carcinoma

Phase II trial of INTESTIFIX for Hepatocellular carcinoma|Non-resectable hepatocellular carcinoma.

Overview

Trial Therapeutic Area
Oncology
Trial Disease
Hepatocellular carcinoma|Non-resectable hepatocellular carcinoma
Trial Stage
Phase II
Drug Modality
Other|Small molecule|Monoclonal antibody

Key dates

Initial CTIS Submission Date
28-11-2023
First CTIS Authorization Date
08-02-2024

Trial design

Randomised, placebo-controlled design: vancomycin placebo vs vancomycin (oral) (pre-treatment given as 4 x 250 mg daily for three days prior to first a/b + intestifix 001 administration) and intestifix 001 placebo vs intestifix 001 in combination with standard of care atezolizumab/bevacizumab (soc). Phase II trial in Germany.

Randomised
Yes
Comparator
Placebo-controlled design: Vancomycin placebo vs Vancomycin (oral) (pre-treatment given as 4 x 250 mg daily for three days prior to first A/B + INTESTIFIX 001 administration) and INTESTIFIX 001 placebo vs INTESTIFIX 001 in combination with standard of care Atezolizumab/Bevacizumab (SOC).
Target Sample Size
48

Eligibility

Recruits 48 isVulnerablePopulationSelected = true. The protocol requires Written informed consent (must be available before enrolment in the clinical trial). Exclusion criteria include 'Legally incapacitated.' and 'Held in an institution by legal or official order.' Subject information and informed consent documents are listed among published documents..

Pregnancy Exclusion
Pregnancy or lactation.
Vulnerable Population
isVulnerablePopulationSelected = true. The protocol requires Written informed consent (must be available before enrolment in the clinical trial). Exclusion criteria include 'Legally incapacitated.' and 'Held in an institution by legal or official order.' Subject information and informed consent documents are listed among published documents.

Inclusion criteria

  • {"criterion_text":"- Subjects must be ≥ 18 years at the time of screening.\n- For patients with active HBV: HBV DNA < 500 IU/ml obtained within 28 days prior to initiation of study treatment and anti-HBV treatment per local standard of care for a minimum of 14 days prior to study entry and willingness to continue treatment for the length of the study\n- For patients with active HCV infection (as characterized by the presence of detectable HCV RNA): must be managed per local institutional practice for the length of the study.\n- Adequate organ and marrow function measured within 72 hours prior to randomization as follows: a. Hemoglobin ≥ 8 g/dL b. Absolute neutrophil count ≥ 1.0 x 109/L c. Platelet count ≥ 50 x 109/L d. Total bilirubin ≤ 3.0 x the upper limit of normal (ULN) e. Alanine aminotransferase (ALT) and aspartate aminotransferase ≤ 5 x ULN f. International normalized ratio ≤ 1.6. g. Calculated creatinine clearance ≥ 30 mL/min as determined by Cockroft-Gault\n- Use of reliable contraception for women of childbearing potential and men.\n- Negative pregnancy test for women of childbearing potential\n- Ability of subject to understand character and individual consequences of clinical trial and to comply with the study protocol and dosing regimen.\n- Written informed consent (must be available before enrolment in the clinical trial)\n- Subject willing to undergo tumor biopsy. This requires a tumor lesion accessible for a biopsy.\n- Confirmed HCC (either by imaging in a cirrhotic liver [liver lesions that show typical features of HCC on IV contrast-enhanced CT or MRI scans, i.e., hypervascularity in the arterial phase with washout in the portal or the late venous phase] or histopathologically from biopsy specimen or surgery).\n- Disease not amenable to resection, liver transplantation or loco-regionary therapy, such as curative ablation, trans-arterial chemoembolization (TACE) or trans-arterial radio-embolization (TARE).\n- Eligible for therapy with Atezolizumab / Bevacizumab according to standard of care.\n- Measurable disease per RECIST 1.1.\n- Preserved liver function with a Child-Pugh score A or B (maximally 7 points).\n- Performance status ECOG 0-1.\n- Available CT scan of thorax and MRI or CT scan of abdomen with contrast agent not older than 30 days before start of treatment (A/B C1d1).\n- Documented virology status of hepatitis, as confirmed by screening HBV and HCV serology test"}

Exclusion criteria

  • {"criterion_text":"- Use of immunosuppressive medication within 6 months prior to the first dose of Atezolizumab / Bevacizumab. The following are exceptions to this criterion: a. Intranasal, inhaled, topical steroids or local steroid injections (e.g. intra-articular injection). b. Systemic corticosteroids at physiologic doses not to exceed 10 mg/day of prednisone or equivalent c. Steroids as premedication for hypersensitivity reactions or as an anti-emetic.\n- Usage of systemic antibiotic therapy within 2 weeks prior to the first dose of Atezolizumab/Bevacizumab (C1d1).\n- Usage of probiotic products/supplements within 1 week prior to the first dose of Atezolizumab/Bevacizumab (C1d1).\n- Known fibrolamellar HCC, sarcomatoid HCC, infiltrative-type HCC, or mixed chol-angiocarcinoma and HCC.\n- History of another primary malignancy. Exceptions include: a. malignancy treated with curative intent or has low potential risk for recurrence with no known active disease ≥ 5 years before the first dose of study intervention; b. malignancy which occurred < 5 years before the first study intervention, is not active, and not expected to recur or be clinically relevant in the next 2 years.\n- Receipt of live attenuated vaccine within 30 days prior to the first dose of study intervention.\n- Pregnancy or lactation.\n- History of hypersensitivity to the investigational medicinal product or to any drug with similar chemical structure or to any excipient present in the pharmaceutical form of the investigational medicinal product.\n- Participation in other interventional clinical trials or observation period of competing clinical trials, respectively.\n- Held in an institution by legal or official order.\n- Legally incapacitated.\n- Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease, diverticulitis, systemic lupus erythematosus, sarcoidosis, granulomatosis with polyangiitis, Graves’ disease, rheumatoid arthritis, hypophysitis, uveitis, autoimmune pneumonitis, autoimmune myocarditis, etc.). The following are exceptions to this criterion: a. Subjects with vitiligo or alopecia. b. Subjects with hypothyroidism stable on hormone replacement. c. Any chronic skin condition that does not require systemic therapy. d. Subjects with coeliac disease controlled by diet alone. e. Subjects without active disease in the last 5 years may be included but only after consultation with the study clinical lead.\n- Known hypersensitivity to any component of the vancomycin, atezolizumab or bevacizumab formulation.\n- Prior exposure to immune-mediated therapy including, but not limited to, other anti-CTLA-4, anti-PD-1, anti-PD-L1, and anti-VEGF antibodies.\n- Known to have tested positive for human immunodeficiency virus (HIV) infection.\n- Co-infection of HBV and HCV. Subjects with a history of HCV infection but who are negative for HCV RNA by PCR will be considered non-infected with HCV.\n- Evidence by investigator assessment of varices at risk of bleeding on upper endoscopy undertaken within 12 months of randomization.\n- Refractory nausea and vomiting, chronic gastrointestinal disease, inability to swallow a formulated product, or previous significant bowel resection that would preclude adequate absorption, distribution, metabolism or excretion of investigational product.\n- Uncontrolled arterial hypertension defined by a systolic pressure > 150 mm Hg or diastolic pressure > 90 mm Hg or other hypertensive cardiovascular complications despite standard medical treatment.\n- Any history of nephrotic or nephritic syndrome."}

Endpoints

Primary endpoints

  • {"endpoint_text":"- The primary immunological patient variable is the count of tumor-infiltrating CD8+ T lymphocytes in the tumor biopsy after two cycles of A/B (d38). CD8+T lymphocyte density will be quantitatively assessed after manual delineation of tumor area in the biopsy (count of CD8+ cells per square millimeter tumor area). Tumor areas with crush artifacts or necrosis will be excluded from analysis.","definition_or_measurement_approach":"CD8+ T lymphocyte density will be quantitatively assessed after manual delineation of tumor area in the biopsy (count of CD8+ cells per square millimeter tumor area). Tumor areas with crush artifacts or necrosis will be excluded from analysis."}
  • {"endpoint_text":"- Incidence and severity of AEs and SAEs from treatment start until 42 days after the fourth cycle of A/B (d105). The occurrence of AEs and SAEs is assessed for each patient, including incidence, severity, timing, seriousness, relatedness to study treatment, action taken with study medication and outcome. Detailed information is provided in section 8.","definition_or_measurement_approach":"Occurrence assessed for each patient including incidence, severity, timing, seriousness, relatedness to study treatment, action taken with study medication and outcome; assessment window: from treatment start until 42 days after the fourth cycle of A/B (d105)."}

Recruitment

Planned Sample Size
48
Recruitment Window Months
36
Consent Approach
Written informed consent must be obtained before enrolment. Subjects are adults (≥18 years) and must provide consent. Subject information and informed consent form documents (L1_FLORA_Patienteninformation and variants) are listed in the public documents; specific languages are not specified in the JSON.

Geography

Total Number Of Sites
9
Total Number Of Participants
48

Germany

Earliest CTIS Part Ii Submission Date
16-01-2024
Latest Decision Or Authorization Date
22-01-2026
Processing Time Days
737
Number Of Sites
9
Number Of Participants
48

Sites

Site Name
University Hospital Cologne AöR
Department Name
Gastroenterologie, Hepatologie
Contact Person Name
Dirk-Thomas Waldschmidt
Contact Person Email
dirk.waldschmidt@uk-koeln.de
Site Name
Universitaetsklinikum Mannheim GmbH
Department Name
Hepatology
Contact Person Name
Andreas Teufel
Site Name
Charite Universitaetsmedizin Berlin KöR
Department Name
Hepatologie, Gastroenterologie
Contact Person Name
Raphael Mohr
Contact Person Email
raphael.mohr@charite.de
Site Name
Universitaetsklinikum Ulm AöR
Department Name
Klinik für Innere Medizin I
Contact Person Name
Thomas Seufferlein
Site Name
Universitaetsklinikum Regensburg AöR
Department Name
Innere Medizin I
Contact Person Name
Arne Kandulski
Contact Person Email
arne.kandulski@ukr.de
Site Name
Universitaetsklinikum Heidelberg AöR
Department Name
Gastroenterologie
Contact Person Name
Michael Dill
Site Name
Universitaetsklinikum Tuebingen AöR
Department Name
Gastroenterologie
Contact Person Name
Pavlos Missios
Site Name
Universitaetsklinikum Augsburg
Department Name
Gastroenterologie
Contact Person Name
Alexander Reichart
Site Name
Universitaetsklinikum Essen AöR
Department Name
Gastroenterology, Hepatology
Contact Person Name
Leonie Jochheim
Contact Person Email
Leonie.jochheim@uk-essen.de

Sponsor

Primary sponsor

Full Name
Universitaetsklinikum Heidelberg AöR
Organisation Type
Hospital/Clinic/Other health care facility
Country Of Registered Address
Germany

Investigational products

Investigational Product Name
INTESTIFIX 001
Active Substance
INTESTIFIX
Modality
Other
Routes Of Administration
ORAL
Route
ORAL
Authorisation Status
prodAuthStatus 1
Maximum Dose
25 g per day (max total 50 g)
Investigational Product Name
Intestifix 001 placebo
Modality
Other
Investigational Product Name
Vancomycin ENTEROCAPS® 250 mg, Hartkapseln
Active Substance
VANCOMYCIN HYDROCHLORIDE
Modality
Small molecule
Routes Of Administration
ORAL
Route
ORAL
Authorisation Status
prodAuthStatus 2; marketingAuthNumber 7422.01.00
Starting Dose
4 x 250 mg daily for three days prior to first A/B + INTESTIFIX 001 (pre-treatment)
Dose Levels
250 mg capsules (4 times daily during pre-treatment); max daily amount 1000 mg
Frequency
4 times daily for 3 days (pre-treatment described in protocol)
Maximum Dose
1000 mg per day (max total 3000 mg)
Investigational Product Name
Vancomycin Placebo
Modality
Other
Investigational Product Name
BEVACIZUMAB
Active Substance
BEVACIZUMAB
Modality
Monoclonal antibody
Routes Of Administration
INTRAVENOUS INFUSION
Route
Intravenous infusion
Authorisation Status
prodAuthStatus 2
Maximum Dose
15 mg/kg (max total 60 mg/kg as recorded)
Investigational Product Name
ATEZOLIZUMAB
Active Substance
ATEZOLIZUMAB
Modality
Monoclonal antibody
Routes Of Administration
INTRAVENIOUS INFUSION
Route
Intravenous infusion
Authorisation Status
prodAuthStatus 2
Maximum Dose
1200 mg per dose (max total 4800 mg recorded)
Combination Treatment
Yes

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