Safety and Tolerability of ²¹²Pb-DOTAM-GRPR1 in Adult Subjects With Recurrent or Metastatic GRPR-expressing Tumors

NCT ID: NCT05283330

Last Updated: 2026-01-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

48 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-12-22

Study Completion Date

2032-05-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

A Phase 1 Open-Label, First-in-human, Dose Escalation and Expansion Study to Determine the Safety, Tolerability, Dosimetry, Pharmacokinetics, and Preliminary Efficacy of 212Pb-DOTAM-GRPR1 in Adult Participants with Recurrent or Metastatic GRPR-expressing Tumors

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

In this open-label, dose escalation and dose expansion single ascending dose (SAD) and multiple ascending dose (MAD) phase 1 study, participants with recurrent or metastatic histologically confirmed GRPR-expressing tumors will be enrolled. In the dose escalation portion, a classic 3+3 design will be utilized for the SAD cohorts and a BOIN design for the MAD cohorts. Dose escalation may proceed until the recommended MAD dose is determined. Up to six (2 SAD and 4 MAD) cohorts are expected to be enrolled. Participants will be treated with up to four cycles administered every 4 or 6 weeks. Once the recommended MAD dose is determined, the expansion cohorts of the study will commence. A dosimetry sub study will also be conducted in participants part of the dose escalation.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Cervical Cancer Breast Cancer Colon Cancer NSCLC mCRPC (Metastatic Castration-resistant Prostate Cancer) Glioblastoma Nonsmall Cell Lung Cancer

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

²¹²Pb-DOTAM-GRPR1

In the dose escalation portion, a classic 3+3 design will be utilized for the SAD cohorts and a Boin design for the MAD cohorts. Doses will be increased by approximately 30% in subsequent cohorts. The maximum total dose that may be administered to a subject per cycle is 5.5 mCi +/- 10%.

Group Type EXPERIMENTAL

²¹²Pb-DOTAM-GRPR1

Intervention Type DRUG

²¹²Pb-DOTAM-GRPR1 is a radioimmunoconjugate comprised of ²¹²Pb, the metal chelator DOTAM (1,4,7,10-Tetrakis(carbamoylmethyl)-1,4,7,10- tetraazacyclododecane) and a GRPR-targeted antagonist.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

²¹²Pb-DOTAM-GRPR1

²¹²Pb-DOTAM-GRPR1 is a radioimmunoconjugate comprised of ²¹²Pb, the metal chelator DOTAM (1,4,7,10-Tetrakis(carbamoylmethyl)-1,4,7,10- tetraazacyclododecane) and a GRPR-targeted antagonist.

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

7. Adequate renal function defined by creatinine clearance (CLCR) ≥ 60 mL/min calculated as follows: CLCR = eGFR in ml/min/1.73 m2 calculated by the Modified Diet in Renal Disease (MDRD) x participant body surface area (BSA) in m2 ÷ 1.73
8. Serum amylase and/or lipase ≤1.5 x ULN
9. For women of childbearing potential (WOCBP) and men with partners of childbearing potential: be willing to use highly effective methods of contraception or sexual abstinence, if part of participant's lifestyle, throughout the study and for 7 months for WOCBP, 4 months for men after the last \[212Pb\]Pb-DOTAM-GRPR1 administration or for 10 days following \[203Pb\]Pb-DOTAM-GRPR1 administration and participant is not proceeding to 212Pb-DOTAM-GRPR1 treatment, as outlined in protocol.

Participants with Recurrent Glioblastoma:
10. Having first or second glioblastoma recurrence, after standard therapy that includes prior radiation therapy (RT) and at least 12 weeks from completion of RT prior to first administration of 212Pb-DOTAM-GRPR1. In case surgery has been performed for GBM recurrence, the surgery has to be completed at least 4 weeks prior to 212Pb-DOTAM-GRPR1 treatment start, with post-surgery recovery without any complications related to surgical procedure.
11. Presence of 203Pb-DOTAM-GRPR1 uptake by SPECT/CT scan in the tumor lesion(s).
12. Presence of Gadolinium enhancement in the MRI in the tumor lesion(s) shown at the time of diagnosis of tumor recurrence.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Orano Med LLC

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Northwestern University Robert H Lurie Medical Research

Chicago, Illinois, United States

Site Status RECRUITING

UK Markey Cancer Center

Lexington, Kentucky, United States

Site Status RECRUITING

Advanced Molecular Imaging and Therapy

Glen Burnie, Maryland, United States

Site Status RECRUITING

XCancer Omaha / Urology Cancer Center

Omaha, Nebraska, United States

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Orano Med LLC

Role: CONTACT

469-638-0744

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Role: primary

Role: primary

859-323-7628

Role: primary

443-333-1894

Role: primary

402-697-2229

References

Explore related publications, articles, or registry entries linked to this study.

Taunk NK, Escorcia FE, Lewis JS, Bodei L. Radiopharmaceuticals for Cancer Diagnosis and Therapy: New Targets, New Therapies-Alpha-Emitters, Novel Targets. Cancer J. 2024 May-Jun 01;30(3):218-223. doi: 10.1097/PPO.0000000000000720.

Reference Type DERIVED
PMID: 38753757 (View on PubMed)

Kunos CA, Fabian D, Napier D, Stonecypher MS, Duncan RM, Hurt J. Human gastrin- releasing peptide receptor expression in women with uterine cervix cancer. Front Oncol. 2023 Jan 25;13:1126426. doi: 10.3389/fonc.2023.1126426. eCollection 2023.

Reference Type DERIVED
PMID: 36761980 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

OM-GRPR1-02

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

SMP-3124LP in Adults With Advanced Solid Tumors
NCT06526819 RECRUITING PHASE1/PHASE2
Phase I Study of KPT330 in Asian Patients
NCT02078349 COMPLETED PHASE1