MedPath

Immuno-positron Emission Tomography Study of 89Zr-S095012 in Patients With Advanced Solid Tumours

Phase 1
Terminated
Conditions
Advanced Solid Tumor
Interventions
Drug: 89Zr-S095012 tracer and S095012 will be administered via an IV infusion
Registration Number
NCT05638334
Lead Sponsor
Institut de Recherches Internationales Servier
Brief Summary

The purpose of this study is to assess the whole-body biodistribution and tumour uptake of 89Zr-S095012 in participants with solid tumours treated with S095012 (PD-L1x4-1BB bispecific antibody)

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
3
Inclusion Criteria
  • Histologically confirmed diagnosis of unresectable, locally advanced or metastatic solid tumour, for which standard treatment options are not available, no longer effective, or not tolerated
  • At least one measurable target lesion as per RECIST 1.1
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Royal Marsden Prognosis score of 0 to 1 (score based on lactate dehydrogenase (LDH) value, albumin value and number of sites of metastasis)
  • Adequate organ function as assessed by laboratory tests (especially adequate hepatic function)
  • Negative test results for cytomegalovirus (CMV), Epstein-Barr virus (EBV), Hepatitis B virus (HBV), and Hepatitis C virus (HCV) infection, according to local standards.
Exclusion Criteria
  • Participants with no available archived material and no tumour lesions amenable to biopsy
  • Participants with primary central nervous system malignancies, with Child-Pugh Class B8 or higher, or C liver cirrhosis
  • Participants with active auto-immune disease or immune-related adverse event currently requiring systemic anti-inflammatory agent (more than 10mg/day prednisone or equivalent)
  • Participants with a history of an opportunistic infection within a year before the administration of first study drug dose are excluded.
  • Participants who received either systemic corticosteroids (> 10 mg per day of prednisone or equivalent) or other immunosuppressive medication during the 2 months prior to the first dose of the study drug are excluded.
  • Participants with prior history of Grade ≥ 3 immune-related pneumonitis, colitis, hepatitis, or myocarditis
  • Participants with a history of progressive multifocal leukoencephalopathy
  • Participants must not have a history of active tuberculosis requiring treatment within 3 years prior to the start of treatment or a suspicion of latent tuberculosis by the investigator.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
89Zr-S095012 tracer with S09501289Zr-S095012 tracer and S095012 will be administered via an IV infusion-
Primary Outcome Measures
NameTimeMethod
Change in PET/CT scan imagesWithin 14 days following the tracer injection and baseline (before the first treatment administration)

Visual analysis of target lesions

Parameters derived from PET scan images to assess uptake in tumour lesions and normal tissuesUp to 8 days following first treatment administration

Standardised uptake value (SUV)

Serum PK parameters of 89Zr-S095012 during the range finding period (Part A)radioactive plasma samples taken at : 5, 30, 60, 120 minutes, 6 hours (on Day-14) and on Day-13, Day-12, Day-10 and Day-7 following the tracer injection and before the first treatment administration (during the dose ranging period)

Area under the curve (AUC)

Serum PK parameters of 89Zr-S095012 at baseline (Part B)radioactive plasma samples taken at : 5, 30, 60, 120 minutes, 6 hours (on Day-14) and on Day-13, Day-12, Day-10 and Day-7 following the tracer injection and before the first treatment administration

Area under the curve (AUC)

Change in Comparison of 89Zr-S095012 tumour uptake (as described using Standardised Uptake Value and concentrations) before and on treatment with different doses of S095012.In Part C (imaging period 2) between Day 1 and Day 8 of cycle 1 (the duration of cycle 1 is 28 days)
Number of patients discontinuing study intervention due to an adverse eventThroughout the study up to 30 days after the last IMP for all AEs, or up to 90 days for all AEs related to the IMP and death
PET/CT scan imagesUp to 8 days following the first treatment administration

Visual analysis of target lesions

Parameters derived from PET scans for organs and tumour lesionsUp to 8 days following first treatment administration

Volume of interest

Serum PK parameters of 89Zr-S095012 on treatment (Part C- schedule 1)radioactive plasma samples taken at : 5, 30, 60, 120 minutes, 6 hours (on Day 1) and on Day 2, Day 3, Day 5 and Day 8 following the first treatment administration

Area under the curve (AUC)

Incidence and severity of adverse eventsThroughout the study up to 30 days after the last IMP for all AEs, or up to 90 days for all AEs related to the IMP and death
Secondary Outcome Measures
NameTimeMethod
Serum PK parameters of S095012 at baseline (Part B)plasma samples taken at : 5, 30, 60, 120 minutes, 6 hours (on Day-14) and on Day-13, Day-12, Day-10 and Day-7 following the tracer injection and before the first treatment administration

Area under the curve (AUC)

Serum PK parameters of S095012 on treatment (Part C - schedule 1)plasma samples taken at : 5, 30, 60, 120 minutes, 6 hours (on Day 1) and on Day 2, Day 3, Day 5, Day 8 and Day 15 following the first treatment administration

Area under the curve (AUC)

Preliminary antitumour activity assessment of S95012The events to be studied are Complete Response or Partial Response, from the first treatment administration up to one year (for patients with confirmed Complete response) or 2 years (for Patients with confirmed Partial Response).

Percentage of patients who achieved complete response or partial response (ie, objective response rate (ORR)) according to Response Evaluation Criteria in Solid Tumours (RECIST) version 1.1 (V1.1)

Serum PK parameters of S095012 during the range finding period (Part A)plasma samples taken at : 5, 30, 60, 120 minutes, 6 hours (on Day-14) and on Day-13, Day-12, Day-10 and Day-7 following the tracer injection and before the first treatment administration (during the dose ranging period)

Area under the curve (AUC)

Organ and whole-body radiation exposure (milliSilvert per Mega Becquerel (mSv/MBq): Effective dose per organ and whole-body effective dose.In Part A, B and C (imaging period 1) at Day-14

Trial Locations

Locations (1)

UMC Gronningen Oncologie

🇳🇱

Groningen, Netherlands

© Copyright 2025. All Rights Reserved by MedPath