A Study of NT-175 in Adult Participants With Advanced Malignancies That Are Positive for HLA-A*02:01 and the TP53 R175H Mutation
An Open-label, Phase 1, Multicentre Platform Study to Evaluate the Safety and Preliminary Anti-tumour Activity of NT-175 in Human Leukocyte Antigen-A*02:01-Positive Adult Participants With Advanced Malignancies That Are Positive for the TP53 R175H Mutation
2 other identifiers
interventional
45
1 country
18
Brief Summary
Phase I Study of NT-175, an autologous T cell therapy product genetically engineered to express an HLA-A\*02:01-restricted T cell receptor (TCR), targeting TP53 R175H mutant malignancies
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_1 nonsmall-cell-lung-cancer
Started Jul 2023
Longer than P75 for phase_1 nonsmall-cell-lung-cancer
18 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 17, 2023
CompletedFirst Posted
Study publicly available on registry
May 26, 2023
CompletedStudy Start
First participant enrolled
July 12, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
July 31, 2029
July 13, 2026
July 1, 2026
6.1 years
May 17, 2023
July 10, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (5)
Module 1, Part 1: Safety of NT-175 in participants with unresectable, advanced, and/or metastatic solid tumours
Incidence of dose-limiting toxicities (DLTs) after the infusion of NT-175
28 days after infusion
Module 1, Part 1: Safety of NT-175 in participants with unresectable, advanced, and/or metastatic solid tumours
Incidence of Treatment Emergent Adverse Events (TEAE) Serious Adverse Events (SAE)
Up to 24 months post-infusion
Module 1, Part 2: Preliminary anti-tumour activity of NT-175 in participants with unresectable, advanced, and/or metastatic solid tumours
Per RECIST v1.1 determined by Investigator assessment: * Objective Response Rate (ORR) * Best Overall Response (BOR) * Duration of Response (DOR) * Clinical Benefit Rate (CBR) * Time to Response (TTR) * Progression-free survival (PFS) * Overall Survival (OS)
Up to 24 months after infusion
Module 2: Safety of NT-175 in participants with haematological malignancies
\- Incidence of dose-limiting toxicities (DLTs) after the infusion of NT-175
Up to 28 days after infusion
Module 2: Safety of NT-175 in participants with haematological malignancies
* Incidence of Treatment Emergent Adverse Events (TEAE) * Serious Adverse Events (SAE)
Up to 24 months after infusion
Secondary Outcomes (2)
Module 1, Part 1: Preliminary anti-tumor activity of NT-175 in participants with unresectable, advanced, and/or metastatic solid tumours
Up to 24 months after infusion
Module 2: Evaluate preliminary anti-tumour activity in participants with AML or MDS
Up to 24 months after infusion
Study Arms (1)
NT-175 for advanced malignancies
EXPERIMENTALTCR T cell therapy product
Interventions
* Pre-conditioning by non-myeloablative chemotherapy with fludarabine and cyclophosphamide * Single infusion Autologous, engineered T Cells targeting TP53 R175H * Post-infusion recombinant interleukin-2 (rIL-2)
Eligibility Criteria
You may qualify if:
- Subjects must be at least 18 years of age
- Subject must be diagnosed with one of the histologies below:
- NSCLC
- Colorectal adenocarcinoma
- HNSCC
- Pancreatic adenocarcinoma
- Breast cancer
- Ovarian cancer
- Any other solid tumor
- Tumors must harbor a TP53 R175H variant mutation and subject must be HLA-A\*02:01 positive (at least 1 allele)
- Subject has advanced solid cancer, defined as unresectable, advanced, and/or metastatic disease (Stage III or IV) after at least 1 line of approved systemic standard of care (SOC) treatment regimen and for which there are no available curative treatment options.
- Subject has at least 1 measurable lesion
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1
- Adequate hematological, renal, hepatic, pulmonary, and cardiac function
You may not qualify if:
- Any another primary malignancy within the 3 years prior to enrollment
- Known, active primary central nervous system (CNS) malignancy
- History of prior adoptive cell and gene therapy, allogeneic stem cell transplant or solid organ transplantation.
- History of clinically significant cardiac disease within the 6 months prior to enrollment or heart failure at any time prior to enrollment.
- Systemic therapy within at least 2 weeks or 3 half-lives, whichever is shorter, prior to enrollment.
- Any form of primary immunodeficiency.
- Known to have Li-Fraumeni syndrome or is known to have relatives who are diagnosed with Li-Fraumeni syndrome.
- At least 18 years of age
- Diagnosis of AML or MDS that allows for efficacy assessments
- Confirmation of TP53 R175H variant mutation in cancer cells
- Subject must be HLA-A\*02:01 positive (at least 1 allele)
- ECOG performance status of 0 to 1
- Acute promyelocytic leukaemia or isolated extramedullary disease
- Another primary malignancy within 2 years (with exceptions)
- HSCT within 100 days or immunosuppression for GvHD within 4 weeks
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- AstraZenecalead
Study Sites (18)
Research Site
Gilbert, Arizona, 85234, United States
Research Site
Duarte, California, 91010, United States
Research Site
Newport Beach, California, 92663, United States
Research Site
Santa Monica, California, 90404, United States
Research Site
Jacksonville, Florida, 32224, United States
Research Site
Miami, Florida, 33136, United States
Research Site
Tampa, Florida, 33612, United States
Research Site
Boston, Massachusetts, 02115, United States
Research Site
New Brunswick, New Jersey, 08901, United States
Research Site
New York, New York, 10065, United States
Research Site
Charlotte, North Carolina, 28204, United States
Research Site
Winston-Salem, North Carolina, 27103, United States
Research Site
Portland, Oregon, 97213, United States
Research Site
Pittsburgh, Pennsylvania, 15232, United States
Research Site
Nashville, Tennessee, 37203, United States
Research Site
Houston, Texas, 77030, United States
Research Site
Round Rock, Texas, 78665, United States
Research Site
Milwaukee, Wisconsin, 53226, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
AstraZeneca
AstraZeneca
Central Study Contacts
AstraZeneca Clinical Study Information Center
CONTACT
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 17, 2023
First Posted
May 26, 2023
Study Start
July 12, 2023
Primary Completion (Estimated)
July 31, 2029
Study Completion (Estimated)
July 31, 2029
Last Updated
July 13, 2026
Record last verified: 2026-07
Data Sharing
- IPD Sharing
- Will share
- Time Frame
- AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA PhRMA Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
- Access Criteria
- When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org. Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.
Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.