Feasibility of Gallium-68-tilmanocept PET/CT for Sentinel Lymph Node Detection in Endometrial Cancer

NCT ID: NCT05446324

Last Updated: 2023-12-01

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

PHASE3

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-02-15

Study Completion Date

2024-09-01

Brief Summary

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This pilot study evaluates the feasibility of 68Ga-tilmanocept PET/CT for SLN mapping in patients with endometrial cancer.

Detailed Description

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Rationale: Currently, the use of indocyanine green (ICG) is the most widely accepted sentinel lymph node (SLN) mapping technique in endometrial cancer but the acquired SLN detection rates greatly vary. We propose that adding preoperative imaging with the radiotracer Gallium-68-tilmanocept (68Ga-tilmanocept) PET/CT can further improve SLN mapping in patients with endometrial cancer and reliably guide the surgeon towards the true SLN intraoperatively.

Objective: To evaluate the feasibility of sentinel lymph node imaging with 68Ga-tilmanocept PET/CT.

Study design: Non-randomised, single-centre, single-arm pilot study in the UMC Utrecht.

Study population: Patients with clinically stage I-II high/high-intermediate risk endometrial cancer scheduled for robot-assisted pelvic and para-aortic lymphatic staging (including SLN procedure). A total of 10 patients will be included.

Intervention (if applicable): Preoperative cervical injection of 68Ga-tilmanocept followed by preoperative PET/CT imaging (in adjunct to the standard-of-care: intraoperative injection with indocyanine green (ICG) with real-time near-infrared (NIR) fluorescence imaging). Injection of 68Ga-tilmanocept is performed by the gynaecologist in an outpatient setting. The PET/CT (PET + contrast enhanced CT abdomen) will be performed 30-90 minutes after tracer injection.

Main study parameters/endpoints: Feasibility of 68Ga-tilmanocept PET/CT for SLN mapping, which is evaluated by its SLN detection rate.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Extra burden for subjects concerns an additional site visit for cervical injection followed by PET/CT imaging with a total duration of two hours (including waiting time of \~60 minutes). The preoperative injection with 68Ga-tilmanocept while patient is awake adds minimal discomfort to the patient. The extra administration of 10 MBq 68Ga-tilmanocept followed by PET/CT, resulting in a radiation of 6.3 mSv, is considered an acceptable radiation burden to the subjects. Adverse reactions after injection of radiolabelled tilmanocept rarely occur. No additional blood samples, follow-up visits or physical examinations are needed during this study. The additional site visit does not delay the scheduled standard care.

Subjects may benefit from this study since the SLN detection rate could be increased and/or faster by adding 68Ga-tilmanocept PET/CT to the diagnostic procedure.

Conditions

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Endometrial Cancer

Keywords

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Endometrial cancer Sentinel lymph node mapping Image guided surgery

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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68Ga-tilmanocept PET/CT

All participants receive 68Ga-tilmanocept PET/CT imaging in adjunct to standard-of-care (SLN mapping with intraoperative ICG).

Group Type EXPERIMENTAL

Gallium-68-tilmanocept

Intervention Type DRUG

All participants receive a cervical injection with 10 MBq 68Ga-tilmanocept in an outpatient setting (at least one week) before surgery. Within 30-90 minutes post-injection a PET with contrast enhanced CT is performed (PET/CT). Data (i.e. detection rate) from the imaging modalities are collected.

Interventions

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Gallium-68-tilmanocept

All participants receive a cervical injection with 10 MBq 68Ga-tilmanocept in an outpatient setting (at least one week) before surgery. Within 30-90 minutes post-injection a PET with contrast enhanced CT is performed (PET/CT). Data (i.e. detection rate) from the imaging modalities are collected.

Intervention Type DRUG

Other Intervention Names

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68Ga-tilmanocept

Eligibility Criteria

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Inclusion Criteria

* Clinical FIGO 2012 stage I-II high/high-intermediate risk endometrial cancer;
* Scheduled for robot-assisted full pelvic and para-aortic staging;
* Age ≥18 years and able to provide informed consent.

Exclusion Criteria

* Pregnancy or current breastfeeding;
* Prior severe allergic reaction to iodine;
* Severe renal insufficiency (stage 3 or 4);
* Clinical or radiological evidence of metastatic disease.
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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UMC Utrecht

OTHER

Sponsor Role lead

Responsible Party

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Ronald Zweemer

Prof. dr. Ronald P. Zweemer

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Cornelis G Gerestein, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

UMC Utrecht

Locations

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Cornelis G Gerestein

Utrecht, , Netherlands

Site Status RECRUITING

Countries

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Netherlands

Central Contacts

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Cornelis G Gerestein, MD, PhD

Role: CONTACT

Phone: +31616770541

Email: [email protected]

Ilse G.T. Baeten, MD

Role: CONTACT

Email: [email protected]

Facility Contacts

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Cornelis G Gerestein, MD, PhD

Role: primary

Other Identifiers

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NL81058.041.22

Identifier Type: -

Identifier Source: org_study_id