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An Exploratory Study to Evaluate Immune Determinants of the Response to Adoptive Cell Therapy (ACT) in Solid and Hematologic Tumors

A Prospective Trial to Evaluate Immune Determinants of the Response and the Toxicity to Adoptive Cell Therapy (ACT) in Solid and Hematologic Tumors

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05481502
Acronym
PIONEER
Enrollment
160
Registered
2022-08-01
Start date
2022-06-08
Completion date
2027-07-01
Last updated
2025-06-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hematologic Cancer, Solid Tumor, Adult, Solid Tumor, Childhood

Brief summary

This is a study to explore the phenotypic and transcriptional changes of different cellular components in the tumor following the injection of somatic cell therapy drugs. The second objective is to explore phenotypic and transcriptional changes of different cellular components in blood and bone marrow following injection of somatic cell therapy drugs.Then correlate the phenotypic and transcriptional profile of different tumor, blood and bone marrow immune populations with clinical response and/or toxicity. And to finish this study is designed in order to identify a phenotypic, transcriptional and epigenetic profile of intra-tumoral adoptive cells and correlate this profile with clinical response and/or toxicity.

Interventions

PROCEDURETumor biopsy

3 biopsies will be collected: at baseline, at day+15 and optionally at relapse

PROCEDUREBlood sample

7 blood samples (25ml) will be taken: at day-7 before treatment start, at day0, at day+3, day+7, day+15, month+3 and at relapse

If a bone marrow biopsy or aspiration is performed as part of routine care, 1 mL of bone marrow aspiration or one more biopsy will be sampled

Sponsors

Gustave Roussy, Cancer Campus, Grand Paris
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
2 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patient affiliated to a social security regimen * Tumor lesion accessible to core biopsies * Patient who is fully informed, able to comply with the protocol and who signed the informed consent * Pediatric patients \> than 2 years old can be included * No restriction about the Eastern Cooperative Oncology Group (ECOG) status

Exclusion criteria

* Coagulation abnormality prohibiting a biopsy (but patients can still give their consent for blood and bone marrow samples). * Tumor lesion not accessible to core biopsies. * Pregnant or nursing women cannot participate in this study.

Design outcomes

Primary

MeasureTime frame
Comparison of frequency, phenotype and transcriptional profile of the different immune subsets in the tumor following adoptive cell therapy infusion using spectral flow cytometry and RNA sequencing3 months following ACT

Secondary

MeasureTime frameDescription
Objective Response3 months following ACTDefined by RECIST 1.1 score for lymphoma and solid tumors
Progression-free survival5 years after first ACT infusionDefined as the time between the adoptive cell therapy and progression, or death whatever the cause, whichever occurs first.
Overall survival5 years after first ACT infusionDefined as the time between the adoptive cell therapy injection and death whatever the cause
Safety of biopsies procedures (when applicable) graded according to CTCAE v5.0From enrollment to 30 days after the last sample

Countries

France

Contacts

Primary ContactCamille BIGENWALD, MD
camille.bigenwald@gustaveroussy.fr+33 (0)1 42 11 42 29
Backup ContactCristina CASTILLA LLORENTE, MD
cristina.castilla-llorente@gustaveroussy.fr+33 (0)1 42 11 42 39

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026