First-in-human Study of the Theranostic Pair [68Ga]Ga DOTA-5G and [177Lu]Lu DOTA-ABM-5G in Pancreatic Cancer

NCT ID: NCT04665947

Last Updated: 2025-05-28

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

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Recruitment Status

RECRUITING

Clinical Phase

EARLY_PHASE1

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-12-18

Study Completion Date

2026-06-30

Brief Summary

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This is a Phase I, first-in-human study to evaluate the safety and efficacy of the \[68Ga\]Ga DOTA-5G and \[177Lu\]Lu DOTA-ABM-5G theranostic pair in patients with locally advanced or metastatic pancreatic adenocarcinoma (PDAC).

Detailed Description

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This is a Phase I, first-in-human study to evaluate the safety and efficacy of the \[68Ga\]Ga DOTA-5G /\[177Lu\]Lu DOTA-ABM-5G theranostic pair in patients with locally advanced or metastatic pancreatic ductal adenocarcinoma (PDAC). PET imaging using \[68Ga\]Ga DOTA-5G will be used to diagnose patients who are eligible for the \[177Lu\]Lu DOTA-ABM-5G. The overall purpose of this study is to identify the dose limiting toxicity (DLT) and recommended phase 2 dose (RP2D) of \[177Lu\]Lu DOTA-ABM-5G. A 3+3 study design in is proposed to identify the RP2D of \[177Lu\]Lu DOTA-ABM-5G. An expansion group will receive the RP2D in order to obtain initial estimates of response and additional information on safety of \[177Lu\]Lu DOTA-ABM-5G.

The hypotheses of this phase I study are that a) \[68Ga\]Ga DOTA-5G will detect lesions in patients with locally advanced or metastatic pancreas cancer b) the theranostic pair \[68Ga\]Ga DOTA-5G/ \[177Lu\]Lu DOTA-ABM-5G will be safe and well tolerated c) we will be able to identify a Recommended Phase 2 Dose (RP2D) for \[177Lu\]Lu DOTA-ABM-5G therapy to be used in subsequent Phase II trials.

Conditions

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Metastatic Pancreatic Cancer Locally Advanced Pancreatic Adenocarcinoma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

This is a first-in-human 3 + 3 study design to identify dose limiting toxicity and recommended phase 2 dose
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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[177Lu]Lu DOTA-ABM-5G dose escalation therapy study

Patients will be undergo \[68Ga\]Ga DOTA-5G PET/CT scans to confirm eligibility for the \[177Lu\]Lu DOTA-ABM-5G therapy. Patients with sufficient lesion uptake of \[68Ga\]Ga DOTA-5G PET/CT will be offered therapy. Escalating doses of 25-200 mCi of \[177Lu\]Lu DOTA-ABM-5G will be administered in a traditional 3+3 dose escalation design. After escalation, 10 additional patients will be enrolled into a dose expansion cohort.

Group Type EXPERIMENTAL

[68Ga]Ga DOTA-5G and [177Lu]Lu DOTA-ABM-5G.

Intervention Type DRUG

PET imaging using \[68Ga\]Ga DOTA-5G will be used to diagnose patients who are eligible for treatment with the \[177Lu\]Lu DOTA-ABM-5G.

Recommended Phase 2 dose [177Lu]Lu DOTA-ABM-5G therapy study

Patients will be undergo \[68Ga\]Ga DOTA-5G PET/CT scans to confirm eligibility for the \[177Lu\]Lu DOTA-ABM-5G therapy.10 patients will be enrolled in the dose expansion cohort and recieve the highest dose achieved in the \[177Lu\]Lu DOTA-ABM-5G dose escalation therapy study

Group Type EXPERIMENTAL

[68Ga]Ga DOTA-5G and [177Lu]Lu DOTA-ABM-5G.

Intervention Type DRUG

PET imaging using \[68Ga\]Ga DOTA-5G will be used to diagnose patients who are eligible for treatment with the \[177Lu\]Lu DOTA-ABM-5G.

Interventions

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[68Ga]Ga DOTA-5G and [177Lu]Lu DOTA-ABM-5G.

PET imaging using \[68Ga\]Ga DOTA-5G will be used to diagnose patients who are eligible for treatment with the \[177Lu\]Lu DOTA-ABM-5G.

Intervention Type DRUG

Other Intervention Names

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[68Ga]Ga DOTA-5G [177Lu]Lu DOTA-ABM-5G [68Ga]Ga DOTA-5G and [177Lu]Lu DOTA-ABM-5G theranostic pair

Eligibility Criteria

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Inclusion Criteria

1. Ability to understand and willingness to sign a written informed consent document.
2. Age 18 or more years
3. Confirmed presence of locally advanced, unresectable or metastatic pancreatic adenocarcinoma (other pancreatic malignant histologies are excluded) with measurable disease per RECIST (version 1.1) (i.e. at least 1 lesion \> 1 cm or lymph node \> 1.5 cm in short axis)
4. Participant must have documented tumor progression during or following at least one prior systemic regimen as established by CT or MRI scan within 28 days of enrollment
5. Eastern Cooperative Oncology Group Performance Status ≤ 2
6. Participant must have completed prior chemotherapy at least 2 weeks (washout period) prior to \[68Ga\]Ga DOTA-5G PET scan. Any clinically significant toxicity (with the exceptions of hair loss and sensory neuropathy) related to prior therapy resolved to Grade 1 or baseline.
7. Hematologic parameters defined as:

1. Absolute neutrophil count (ANC) ≥ 1000 cells/mm3
2. Platelet count ≥ 100,000/mm3
3. Hemoglobin ≥ 8 g/dL
8. Blood chemistry levels defined as:

1. AST, ALT, alkaline phosphatase ≤ 5 times upper limit of normal (ULN)
2. Total bilirubin ≤ 2 times ULN
3. Creatinine ≤ 2 times ULN
9. Anticipated life expectancy ≥ 3 months
10. Able to remain motionless for up to 30-60 minutes per scan


1. Completion of entry into \[68Ga\]Ga DOTA-5G PET study and completion of scan
2. The presence of at least one measurable disease by \[68Ga\]Ga DOTA-5G PET/CT (SUVmax\>2-fold above normal lung or liver)

Exclusion Criteria

1. Participant on any chemical anticoagulant including antiplatelet agents (excluding ASA)
2. Participants with Class 3 or 4 NYHA Congestive Heart Failure
3. Clinically significant bleeding within two weeks prior to trial entry (e.g. gastrointestinal bleeding, intracranial bleeding)
4. Pregnant or lactating women
5. Major surgery, defined as any surgical procedure that involves general anesthesia and a significant incision (i.e. larger than what is required for placement of a central venous access, percutaneous feeding tube, or biopsy) within 28 days prior to study day 1 or anticipated surgery within the subsequent 6 weeks
6. Has an additional active malignancy requiring therapy within the past 2 years
7. Active, uncontrolled bacterial, viral, or fungal infection(s) requiring systemic therapy
8. Psychiatric illness/social situations that would interfere with compliance with study requirements
9. Previous radiation therapy for the treatment of advanced or metastatic disease
10. Cannot undergo PET/CT scanning because of weight limits (350 lbs)
11. INR\>1.2; PTT\>5 seconds above UNL
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of California, Davis

OTHER

Sponsor Role lead

Responsible Party

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Julie L. Sutcliffe, Ph.D

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Julie L Sutcliffe

Role: PRINCIPAL_INVESTIGATOR

University of California, Davis

Locations

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University of California Davis

Sacramento, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Julie L Sutcliffe

Role: CONTACT

916-734-5536

Facility Contacts

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Julie L Sutcliffe

Role: primary

916-734-5536

Other Identifiers

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1667622

Identifier Type: -

Identifier Source: org_study_id

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