Application of 68Ga-DOTA-TATE and 68Ga-DOTA-JR11 PET/CT in the Diagnosis and Evaluation of TIO

January 2, 2021 updated by: Peking Union Medical College Hospital

Head-to-head Comparison of 68Ga-DOTA-TATE and 68Ga-DOTA-JR11 PET/CT in Patients With Tumor-induced Osteomalacia

This is an open-label whole-body PET/CT study for investigating the value of 68Ga-DOTA-TATE and 68Ga-DOTA-JR11 PET/CT in patients with Tumor-induced osteomalacia.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Tumor-induced osteomalacia (TIO), also known as oncogenic osteomalacia, is a rare paraneoplastic syndrome. The key to the cure of TIO is surgical resection of the culprit tumor. Over the last decade, 68Ga-labeled SSTR-based imaging has made a significant impact in detecting the culprit tumor of TIO 68Ga-DOTA-TATE is the most used SSTR PET tracer for the detection of TIO and it was recommended as first-line imaging method for localization of the causative tumor.

However, false positive, including fracture and/or inflammation, in 68Ga-DOTA-TATE PET/CT is a challenge in image interpretation, which may make the causative tumor indistinguishable in multiple suspicious lesions. There is no effective way to identify multiple suspicious lesions with intensive increased uptake on 68Ga-DOTA-TATE PET/CT.

68Ga-DOTA-JR11 is a SSTR2 specific antagonist used for PET tracer. However, the SSTR2 affinity of 68Ga-DOTA-JR11 is lower than 68Ga-DOTA-TATE, which means that the uptake of 68Ga-DOTA-JR11 by suspected lesions may be lower than that of 68Ga-DOTA-TATE. The purpose of this prospective study is to compare the sensitivity of 68Ga-DOTA-JR11 and 68Ga-DOTA-TATE PET/CT for detecting the responsible tumor of TIO and investigate if 68Ga-DOTA-JR11 PET/CT can identify the culprit tumor of TIO in multiple suspicious lesions.

Study Type

Interventional

Enrollment (Anticipated)

50

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Dongcheng
      • Beijing, Dongcheng, China, 100010
        • Recruiting
        • Peking Union Medical College Hospital
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • suspected or confirmed untreated TIO patients;
  • 68Ga-DOTA-TATE and 68Ga-DOTA-JR11 PET/CT within two weeks;
  • signed written consent.

Exclusion Criteria:

  • pregnancy;
  • breastfeeding;
  • any medical condition that in the opinion of the investigator may significantly interfere with study compliance.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 68Ga-DOTA-TATE and 68Ga-DOTA-JR11 PET/CT scan
Patients of Tumor-induced osteomalacia PET/CT imaging: The patients were subcutaneously injected with 68Ga-DOTA-TATE and 68Ga-DOTA-JR11 and underwent PET/CT scan 20~40min after the injection in two consecutive days.
Drug: 68Ga-Dotatate
68Ga-Dotatate was injected into the patients before the PET/CT scans
Other Names:
  • 68Ga-Dotatate injection
Drug: 68Ga-DOTA-JR11
68Ga-DOTA-JR11 was injected into the patients before the PET/CT scans
Other Names:
  • 68Ga-DOTA-JR11 injection

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Diagnostic value
Time Frame: through study completion, an average of 1 year
Sensitivity and Specificity of 68Ga-DOTA-JR11 PET/CT for TIO in comparison with 68Ga-DOTATATE PET/CT
through study completion, an average of 1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Peking Union Medical College Hospital

Investigators

  • Principal Investigator: Hongli Jing, MD, Peking Union Medical College Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 15, 2020

Primary Completion (Anticipated)

March 15, 2021

Study Completion (Anticipated)

March 15, 2022

Study Registration Dates

First Submitted

December 28, 2020

First Submitted That Met QC Criteria

December 28, 2020

First Posted (Actual)

December 30, 2020

Study Record Updates

Last Update Posted (Actual)

January 5, 2021

Last Update Submitted That Met QC Criteria

January 2, 2021

Last Verified

December 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PUMCHTIOJR11

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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