A Clinical Study of the Safety and Effectiveness of an Investigational Cell Therapy Given With and Without an Investigational RNA-based Vaccine in Patients With Organ Tumors
NCT ID: NCT04503278
Last Updated: 2025-12-23
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
PHASE1
214 participants
INTERVENTIONAL
2020-09-16
2041-01-31
Brief Summary
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Detailed Description
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The trial consists of two parts.
The trial began using a manual CLDN6 CAR-T production process.
Part 1 is a CLDN6 CAR-T dose escalation in lymphodepleted patients until the maximum tolerated dose (MTD) and/or recommended phase 2 dose (RP2D) of CLDN6 CAR-T are defined.
Dose escalation with CLDN6 CAR-T cells from the automated manufacturing process follows an accelerated titration design, as opposed to the classical 3+3 trial design used for the dose escalation with CLDN6 CAR-T manufactured with the manual process.
In addition, an optional de-escalation dose level may be explored to further evaluate clinical safety and efficacy of CLDN6 CAR-T manufactured with the automated process.
Part 2 is a vaccine-modulated dose escalation using a bifurcated design until the MTD and/or RP2D of CLDN6 CAR-T + CLDN6 RNA-LPX are defined.
The trial started with a CLDN6 encoding uridine containing RNA formulated in lipoplexes (CLDN6 uRNA-LPX). In order to optimize CAR-T cell persistence in patients, an alternative RNA-LPX, CLDN6 modRNA-LPX, will be tested once the RP2D dose for CLDN6 CAR-T ± CLDN6 RNA-LPX is identified.
The planned trial duration per patient in the main trial is 25 months. Patients exposed to genetically engineered therapies may be at risk of delayed adverse events. Therefore, after patients complete or prematurely discontinue participation in the main trial, they will be asked to participate in a long-term follow-up (LTFU) trial to assess long-term safety and efficacy for up to 15 years. Patients will be asked to re-consent to participate in this LTFU period.
Conditions
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Keywords
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Study Design
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NON_RANDOMIZED
FACTORIAL
TREATMENT
NONE
Study Groups
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Part 1 - CLDN6 CAR-T
Dose escalation in lymphodepleted patients until the MTD and/or RP2D.
CLDN6 CAR-T
administered as an intravenous (i.v.) infusion.
Part 2 Vaccine-modulated - CLDN6 uRNA-LPX/CLDN6 modRNA-LPX
Dose escalation until the MTD and/or RP2D.
CLDN6 CAR-T
administered as an intravenous (i.v.) infusion.
CLDN6 uRNA-LPX/CLDN6 modRNA-LPX
administered as an i.v. injection at protocol-specified intervals.
Interventions
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CLDN6 CAR-T
administered as an intravenous (i.v.) infusion.
CLDN6 uRNA-LPX/CLDN6 modRNA-LPX
administered as an i.v. injection at protocol-specified intervals.
Eligibility Criteria
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Inclusion Criteria
* Availability of a FFPE tumor tissue sample. FFPE sample can be from an archival tumor tissue sample. It should be from the most recent tumor tissue obtained and must not be \>3 years old. If an archival sample is not available, the patient must be biopsied for CLDN6 staining. If an archival tumor sample is ≤3 years old but the patient has received a treatment that may influence expression of CLDN6 after the archival tumor sample was obtained, a fresh tumor biopsy is required.
* Must have histological documentation of the original primary tumor via a pathology report.
* Must have measurable disease per RECIST v1.1 (except for germ cell tumors, where patients can be evaluated according to Cancer-Antigen (CA)-125, Alpha-fetoprotein or beta-human chorionic gonadotropin (βhCG) \[as applicable\], or ovarian cancer, where patients can be evaluated according to CA-125. The pre-treatment sample must be at least twice the upper limit of normal).
* Must have a histologically confirmed solid tumor that is metastatic or unresectable and for which there is no available standard therapy likely to confer clinical benefit, or the patient is not a candidate for such available therapy.
* Must be ≥ 18 years of age at the time the pre-screening informed consent is signed.
* Must sign an informed consent form indicating that he or she understands the purpose of and procedures required for the trial and are willing to participate in the trial prior to any trial-related assessments or procedures.
* Must have an Eastern Cooperative Oncology Group performance status of 0 to 1.
* Must have adequate coagulation function at screening as defined in the protocol.
* Must have adequate hematologic function at screening as defined in the protocol.
* Must have adequate hepatic function at screening as defined in the protocol.
* Must have adequate renal function at screening as defined in the protocol.
* Must be able to attend trial visits as required by the protocol.
* Women of childbearing potential (WOCBP) must have a negative serum (βhCG) test/value at screening. Patients who are post-menopausal or permanently sterilized can be considered as not having reproductive potential.
* WOCBP must agree not to donate eggs (ova, oocytes) for the purposes of assisted reproduction during the entire trial and thereafter.
* WOCBP and men who are sexually active with a WOCBP and have not had a vasectomy must agree to use highly effective birth control method(s), as defined in the protocol. True abstinence is an acceptable alternative to the use of contraception.
* Men must agree not to father a child or donate sperm, and WOCBP must agree not to become pregnant during the trial and for at least 12 months after the CLDN6 CAR-T infusion or CLDN6 RNA-LPX treatment.
For Part 2 only:
Exclusion Criteria
* Has received vaccination with live virus vaccines within 6 weeks prior to the start of lymphodepletion (LD).
* Receives concurrent systemic (oral or i.v.) steroid therapy \>10 mg prednisolone daily, or its equivalent, for an underlying condition.
* Has side effects of any prior therapy or procedures for any medical condition not recovered to National Cancer Institute Common Terminology Criteria for Adverse Avents version 5.0 Grade ≤1.
Medical conditions:
* Current evidence of new or growing brain or spinal metastases during screening. Patients with known brain or spinal metastases may be eligible if they:
1. Have had radiotherapy or another appropriate therapy for the brain or spinal metastases. The therapy must be completed at least 3 weeks prior to CLDN6 CAR-T administration,
2. Have no neurological symptoms,
3. Have stable brain or spinal disease on the computer tomography or magnetic resonance imaging scan within 3 weeks before CLDN6 CAR-T administration,
4. Are not undergoing acute corticosteroid therapy or steroid taper. Chronic steroid therapy is acceptable provided that the dose is stable for the last 14 days prior to screening (≤10 mg prednisolone daily or equivalent),
5. Do not require steroid therapy within 7 days before the first dose of CLDN6 CAR-T, and
6. Do not have anticipated imminent fracture or cord compression due to spinal bone metastases.
* Has history of epilepsy. Isolated seizures in the past or febrile seizures in childhood are permitted; has a history of a cerebrovascular accident or transient ischemic attack less than 6 months ago.
* Pericardial effusion requiring any drainage is excluded.
* Has an active autoimmune disease including but not limited to inflammatory bowel disease, systemic lupus erythematosus, ankylosing spondylitis, scleroderma, or multiple sclerosis. Has any active immunologic disorder requiring immunosuppression with steroids or other immunosuppressive agents with the exception of patients with isolated vitiligo, resolved childhood asthma or atopic dermatitis, controlled hypoadrenalism or hypopituitarism, and euthyroid patients with a history of Grave's disease. Patients with controlled hyperthyroidism must be negative for thyroglobulin, thyroid peroxidase antibodies, and thyroid-stimulating immunoglobulin prior to trial drug administration.
* Seropositivity for human immunodeficiency virus.
* Known history/positive serology for hepatitis B requiring active antiviral therapy (unless immune due to vaccination or resolved natural infection or unless passive immunization due to immunoglobulin therapy). Patients with positive serology must have hepatitis B virus viral load below the limit of quantification.
* Active hepatitis C virus (HCV) infection; patients who have completed curative antiviral treatment with HCV viral load below the limit of quantification are allowed.
* Has a known hypersensitivity to a component of CLDN6 CAR-T or the CLDN6 RNA-LPX drug product, or another similar compound.
* History of severe immediate hypersensitivity reaction to LD chemotherapy consisting of cyclophosphamide or fludarabine.
* Has a history of another primary cancer within the 2 years prior to enrollment except for the following: Non-melanoma skin cancer, cervical carcinoma in situ, superficial bladder cancer, prostate cancer with currently undetectable prostate specific antigen, or other non-metastatic carcinoma that has been in complete remission without treatment for more than 2 years.
* Receipt of allogenic stem cell transplantation in the 5 years prior to enrollment into the trial.
* Patients with acute or chronic graft versus host disease.
Other comorbidities:
* Has abnormal electrocardiograms that are clinically significant, such as QT prolongation.
* In the opinion of the investigator, has any concurrent conditions that could pose an undue medical hazard or interfere with the interpretation of the trial results; these conditions include, but are not limited to:
1. Ongoing or active infection requiring antibiotic/antiviral/antifungal therapy
2. Concurrent congestive heart failure (New York Heart Association Functional Classification Class III or IV)
3. Concurrent unstable angina
4. Concurrent cardiac arrhythmia requiring treatment
5. Acute coronary syndrome within the previous 6 months
6. Significant pulmonary disease (shortness of breath at rest or on mild exertion) for example due concurrent severe obstructive pulmonary disease.
* Has a cognitive, psychological or psychosocial impediment that would impair the ability of the patient to receive therapy according to the protocol or adversely affect the ability of the patient to comply with the informed consent process, protocol, or protocol-required visits and procedures.
* Is pregnant or breastfeeding.
* Have a pure βhCG-secreting germ cell tumor.
18 Years
ALL
No
Sponsors
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BioNTech Cell & Gene Therapies GmbH
INDUSTRY
Responsible Party
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Principal Investigators
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BioNTech Responsible Person
Role: STUDY_DIRECTOR
BioNTech SE
Locations
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Peter MacCallum Cancer Centre
Melbourne, Victoria, Australia
Charité - Universitätsmedizin Berlin - Campus Benjamin Franklin
Berlin, , Germany
Universitätsklinikum Köln AÖR-Centrum für Integrierte Onkologie (CIO)-Studienzentrum der Klinik I für Innere Medizin (CTU Cologne)
Cologne, , Germany
Universitätsklinikum Erlangen - Hämatologie & Intrinsische Onkologie - Medizinische Klinik 5
Erlangen, , Germany
Universitätsklinikum Hamburg Eppendorf - II Medizinische Klinik und Poliklinik
Hamburg, , Germany
Medizinische Hochschule Hannover - Klinik für Hämatologie, Hämostaseologie, Onkologie und Stammzelltransplantation
Hanover, , Germany
Nationales Centrum für Tumorerkrankungen (NCT) Heidelberg
Heidelberg, , Germany
Universitätsmedizin Mainz - III Medizinische Klinik und Poliklinik
Mainz, , Germany
Universitätsklinikum Regensburg - Klinik und Poliklinik für Innere Medizin III
Regensburg, , Germany
He Nederlands Kanker Instituut (The Netherlands Cancer Institute) - Antoni van Leeuwenhoek Ziekenhuis (NKI-AVL)
Amsterdam, , Netherlands
Erasmus MC - Universitair Medisch Centrum - Medical oncology
Rotterdam, , Netherlands
Karolinska Comprehensive Cancer Center Cancerstudieenheten Huddinge Karolinska Universitetssjukhuset
Stockholm, , Sweden
Countries
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Central Contacts
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BioNTech clinical trials patient information
Role: CONTACT
Phone: +49 6131 9084
Email: [email protected]
References
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Mackensen A, Haanen JBAG, Koenecke C, Alsdorf W, Wagner-Drouet E, Borchmann P, Heudobler D, Ferstl B, Klobuch S, Bokemeyer C, Desuki A, Luke F, Kutsch N, Muller F, Smit E, Hillemanns P, Karagiannis P, Wiegert E, He Y, Ho T, Kang-Fortner Q, Schlitter AM, Schulz-Eying C, Finlayson A, Flemmig C, Kuhlcke K, Preussner L, Rengstl B, Tureci O, Sahin U. CLDN6-specific CAR-T cells plus amplifying RNA vaccine in relapsed or refractory solid tumors: the phase 1 BNT211-01 trial. Nat Med. 2023 Nov;29(11):2844-2853. doi: 10.1038/s41591-023-02612-0. Epub 2023 Oct 23.
Simon AG, Lyu SI, Laible M, Woll S, Tureci O, Sahin U, Alakus H, Fahrig L, Zander T, Buettner R, Bruns CJ, Schroeder W, Gebauer F, Quaas A. The tight junction protein claudin 6 is a potential target for patient-individualized treatment in esophageal and gastric adenocarcinoma and is associated with poor prognosis. J Transl Med. 2023 Aug 17;21(1):552. doi: 10.1186/s12967-023-04433-8.
Other Identifiers
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2019-004323-20
Identifier Type: EUDRACT_NUMBER
Identifier Source: secondary_id
2024-514962-38-00
Identifier Type: CTIS
Identifier Source: secondary_id
BNT211-01
Identifier Type: -
Identifier Source: org_study_id