Study of GSK3845097 in Previously Treated Participants With Advanced Synovial Sarcoma and Myxoid/Round Cell Liposarcoma

November 8, 2024 updated by: Adaptimmune

Assessment of Safety and Recommended Phase 2 Dose of Autologous T Cells Engineered With an Affinity-enhanced TCR Targeting NY ESO 1 and LAGE 1a, and Co-expressing the dnTGF-βRII (GSK3845097) in Participants With NY ESO 1 and/or LAGE 1a Positive Previously Treated Advanced (Metastatic or Unresectable) Synovial Sarcoma and Myxoid/Round Cell Liposarcoma

To assess the safety, tolerability and determine recommended phase 2 dose (RP2D) of GSK3845097 in HLA-A*02:01, HLA-A*02:05 and/or HLA-A*02:06 positive participants with New York esophageal squamous cell carcinoma (NY-ESO)-1 and/or Cancer testis antigen 2 (LAGE-1a) positive, previously treated, advanced (metastatic or unresectable) Synovial Sarcoma (SS) and Myxoid/Round Cell Liposarcoma (MRCLS).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study is a substudy of the Master record - (209012) NCT04526509.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
5

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Australia
    • Victoria
      • Melbourne, Victoria, Australia, 3000
        • GSK Investigational Site
  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 2M9
        • GSK Investigational Site
    • Quebec
      • Montréal, Quebec, Canada, H1T 2M4
        • GSK Investigational Site
  • Germany
    • Bayern
      • Muenchen, Bayern, Germany, 81377
        • GSK Investigational Site
    • Niedersachsen
      • Hannover, Niedersachsen, Germany, 30625
        • GSK Investigational Site
    • Nordrhein-Westfalen
      • Koeln, Nordrhein-Westfalen, Germany, 50937
        • GSK Investigational Site
    • Sachsen
      • Dresden, Sachsen, Germany, 01307
        • GSK Investigational Site
  • Netherlands
      • Amsterdam, Netherlands, 1066 CX
        • GSK Investigational Site
  • Sweden
      • Stockholm, Sweden, SE-171 64
        • GSK Investigational Site
  • United States
    • Connecticut
      • New Haven, Connecticut, United States, 06504
        • GSK Investigational Site
    • Florida
      • Jacksonville, Florida, United States, 32224
        • GSK Investigational Site
      • Tampa, Florida, United States, 33612
        • GSK Investigational Site
    • Georgia
      • Atlanta, Georgia, United States, 30322
        • GSK Investigational Site
    • Kansas
      • Westwood, Kansas, United States, 66205
        • GSK Investigational Site
    • Kentucky
      • Lexington, Kentucky, United States, 40536
        • GSK Investigational Site
    • Maryland
      • Baltimore, Maryland, United States, 21287
        • GSK Investigational Site
    • Missouri
      • Saint Louis, Missouri, United States, 63110
        • GSK Investigational Site
    • New York
      • New York, New York, United States, 10032
        • GSK Investigational Site
      • New York, New York, United States, 10065
        • GSK Investigational Site
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19111
        • GSK Investigational Site
    • Texas
      • Houston, Texas, United States, 77030
        • GSK Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Participant must be >=18 years of age and weighs ≥40 kg on the day of signing informed consent
  • Participant must be positive for HLA-A*02:01, HLA-A*02:05, and/or HLA-A*02:06 alleles
  • Participant's tumor must have tested positive for NY-ESO-1 and/or LAGE-1a expression by a GSK designated laboratory
  • Performance status: Eastern Cooperative Oncology Group of 0-1
  • Participant must have adequate organ function and blood cell counts 7 days prior to leukapheresis
  • Participant must have measurable disease according to RECIST v1.1.
  • Participant has advanced (metastatic or unresectable) SS or MRCLS confirmed by local histopathology with evidence of disease-specific translocation
  • Participant has completed at least one standard of care (SOC) treatment including anthracycline containing regimen unless intolerant to or ineligible to receive the therapy.
  • Participants who are not candidates to receive anthracycline should have received ifosfamide unless also intolerant to or ineligible to receive ifosfamide. Participants who received neoadjuvant/adjuvant anthracycline or ifosfamide based therapy and progressed will be eligible

Exclusion Criteria:

  • Central nervous system (CNS) metastases, with certain exceptions for CNS metastases in NSCLC as specified in the protocol
  • Any other prior malignancy that is not in complete remission
  • Clinically significant systemic illness
  • Prior or active demyelinating disease
  • History of chronic or recurrent (within the last year prior to leukapheresis) severe autoimmune or immune mediated disease requiring steroids or other immunosuppressive treatments
  • Previous treatment with genetically engineered NY-ESO-1-specific T cells, NY-ESO-1 vaccine or NY-ESO-1 targeting antibody
  • Prior gene therapy using an integrating vector
  • Previous allogeneic hematopoietic stem cell transplant within the last 5 years or solid organ transplant
  • Washout periods for prior radiotherapy and systemic chemotherapy must be followed
  • Major surgery within 4 weeks prior to lymphodepletion
  • Pregnant or breastfeeding females

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: GSK3845097
Eligible participants will be leukapheresed to manufacture engineered T-cells. Participants will then receive high dose of GSK3845097 after completing lymphodepleting chemotherapy. The first study participant receiving GSK3845097 will receive the total assigned dose as 2 separate infusions 7 days apart, in aliquots of 30% (first infusion) and 70% (second infusion) of the total target dose , respectively. Based on the dose limiting toxicities reported in the first participant, then all subsequent participants treated with GSK3845097 will receive the full dose as a single, i.e., one-time, infusion.
Drug: GSK3845097
GSK3845097 was administered.
Drug: Cyclophosphamide
Cyclophosphamide was administered as lymphodepleting chemotherapy.
Drug: Fludarabine
Fludarabine was administered as lymphodepleting chemotherapy.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants With Dose Limiting Toxicities (DLTs)
Time Frame: Up to 28 days
DLT events were graded according to NCI-CTCAE v5.0. DLTs were defined as Grade (Gr) 4 (life-threatening and death) related to GSK3845097 2) Gr 3 (Severe or medically significant) at least possibly related to GSK3845097 and do not resolve to Gr <=1 (or Baseline) within 7 days from the onset of the event 3) Gr >=3 non-infectious pneumonitis not responding to oxygen supplementation and systemic steroid treatment 4) Any Gr 3 cytokine release syndrome (CRS) at least possibly related to GSK3845097 that does not improve to Gr <2 (moderate) toxicity within 7 days with or without dexamethasone 5) Any Gr 4 CRS at least possibly related to study product that does not improve to Gr <=2 (or Baseline) within 7 days 6) Any Gr 3 or greater neurotoxicity that does not resolve to Gr <=2 within 72 hours 7) Any Gr >=3 organ toxicity (exclusive of CRS toxicity) involving major organ systems that persists for >72 hours and occurs within 28 days of infusion.
Up to 28 days
Number of Participants With Treatment Emergent Adverse Events (AEs) and Serious AEs Based on Maximum Severity
Time Frame: Up to approximately 21 months
An adverse event (AE) is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention. SAE is defined as any untoward medical occurrence that, at any dose can result in death, is life threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth or is medically significant or requires intervention to prevent one or the outcomes listed above. AEs and SAEs were graded according to NCI-CTCAE v5.0. Grade 1- Mild; Grade 2- Moderate; Grade 3- Severe or medically significant but not immediately life-threatening; Grade 4- Life-threatening consequences; Grade 5- Death related to AE. AEs which start or worsen on or after T-cell infusion are classified as treatment emergent. SAEs are subset of AEs. Results for maximum severity grades has been presented.
Up to approximately 21 months
Number of Participants With Treatment Emergent Adverse Events of Special Interest (AESI)
Time Frame: Up to approximately 21 months
An AESI may be of scientific and medical concern related to the treatment, monitored, and rapidly communicated by investigator to sponsor. AESIs included events of Cytokine Release Syndrome (CRS), Haematopoietic cytopenias (including pancytopenia and aplastic anaemia), Graft versus Host Disease (GvHD), Immune Effector-Cell Associated Neurotoxicity Syndrome (ICANS), Guillain-Barre Syndrome (GBS), Pneumonitis and treatment-related inflammatory response at tumor site(s) and Neutropenia Grade 4 lasting more than or equal to 28 days. AEs which start or worsen on or after T-cell infusion are classified as treatment emergent.
Up to approximately 21 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Overall Response Rate (ORR) Assessed by Investigator According to RECIST v1.1
Time Frame: Up to approximately 21 months
Overall response rate (ORR) defined as the percentage of participants with a confirmed complete response (CR) or confirmed partial response (PR) via investigator assessment per Response Evaluation Criteria in Solid Tumors Criteria (RECIST) version 1.1 relative to the total number of participants in the analysis population. Partial response (PR) was defined as at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters. Complete response (CR) was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (<)10 millimeters (mm). Confidence intervals (CI) were calculated using the exact (Clopper-Pearson) method.
Up to approximately 21 months
Duration of Response (DoR)
Time Frame: Up to approximately 21 months
DoR is defined as the interval of time (in months) from first documented evidence of the confirmed response (PR or CR) as assessed by local investigators to the date of disease progression per RECIST v1.1 or death due to any cause, among participants with a confirmed response of PR or CR. PR was defined as at least a 30% decrease in the sum of the diameters of target lesions, taking as reference the baseline sum diameters. CR was defined as the disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm.
Up to approximately 21 months
Maximum Transgene Expansion (Cmax) of GSK3845097
Time Frame: Up to 21 days
Cmax was defined as peak cell expansion during the interventional phase. Blood samples were collected to measure Cmax.
Up to 21 days
Time to Cmax (Tmax) of GSK3845097
Time Frame: Up to 21 days
Tmax was defined as time to peak cell expansion during the interventional phase. Blood samples were collected to measure Tmax.
Up to 21 days
Area Under the Time Curve From Zero to Time 28 Days (AUC[0-28])
Time Frame: Up to 28 days
Area under the cell expansion-time curve from first T-cell infusion to Day 28. Blood samples were collected to measure AUC (0-28 days).
Up to 28 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Adaptimmune

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Adaptimmune Patient Enquiries, Adaptimmune

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 21, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 24, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 24, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 5, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 5, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 13, 2023

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 13, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 8, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 209012 Substudy 2
  • 2019-004446-14 (EudraCT Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Qualified researchers may request access to anonymized individual patient-level data (IPD) and related study documents of the eligible studies via the Data Sharing Portal. Details on GSK's data sharing criteria can be found at: https://www.gsk.com/en-gb/innovation/trials/data-transparency/

IPD Sharing Time Frame

Anonymized IPD will be made available within 6 months of publication of primary, key secondary and safety results for studies in product with approved indication(s) or terminated asset(s) across all indications.

IPD Sharing Access Criteria

Anonymized IPD is shared with researchers whose proposals are approved by an Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months but an extension may be granted, when justified, for up to 6 months.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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