Early Clinical Evaluation of 18F-LY3546117 in Tumor Imaging
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ClinicalTrials.gov Identifier: NCT04721756 |
Recruitment Status :
Recruiting
First Posted : January 25, 2021
Last Update Posted : April 25, 2022
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Condition or disease | Intervention/treatment | Phase |
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Neoplasms Neoplasms Malignant | Drug: 18F-LY3546117 Injection Procedure: PET Scan | Early Phase 1 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 30 participants |
Allocation: | Non-Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Diagnostic |
Official Title: | A Phase I Study Evaluating the Safety and Imaging Characteristics of 18F-LY3546117 Injection in Subjects Who Are Undergoing Treatment With Immune Checkpoint Inhibitors |
Actual Study Start Date : | April 12, 2022 |
Estimated Primary Completion Date : | April 2024 |
Estimated Study Completion Date : | April 2024 |

Arm | Intervention/treatment |
---|---|
Experimental: 18F-LY3546117 Scan Cohort 1
18F-LY3546117 PET scan at baseline and between 14-42 days after initiation of immune checkpoint therapy
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Drug: 18F-LY3546117 Injection
370 megabecquerel (MBq) intravenous injection Procedure: PET Scan positron emission tomography (PET) scan |
Experimental: 18F-LY3546117 Scan Cohort 2
18F-LY3546117 PET scan at time of immune checkpoint therapy response
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Drug: 18F-LY3546117 Injection
370 megabecquerel (MBq) intravenous injection Procedure: PET Scan positron emission tomography (PET) scan |
- Cohort 1: Uptake of 18F-LY3546117 in tumor foci and other organs of the body [ Time Frame: Day 14 up to Day 42 of immune checkpoint inhibitor therapy ]Visual uptake in the tumor as assessed by sponsor expert reader (Yes/No)
- Cohort 2: Uptake of 18F-LY3546117 in tumor foci and other organs of the body [ Time Frame: At immune checkpoint inhibitor treatment response (Day 42 up to 6 months post-treatment) ]Visual uptake in the tumor as assessed by sponsor expert reader (Yes/No)

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria (Cohort 1):
- At least one imageable tumor greater than or equal to 15 mm in the longest diameter
- Confirmed diagnosis of cancer with a high likelihood of response to immuno-oncology therapy (melanoma or non-small cell lung cancer, or other malignancies with sponsor approval) and planned mono- or combination therapy with immuno-oncology therapy
- Life expectancy of greater than 6 months
Inclusion Criteria (Cohort 2):
- At least one imageable tumor greater than or equal to 15 mm in the longest diameter or a tumor assessable by PET in the opinion of the radiologist
- Received treatment with an immune checkpoint inhibitor with evidence of response
- Life expectancy of greater than 6 months
Exclusion Criteria:
- Subjects who plan to receive chemotherapy or radiation therapy during study participation
- Prior history of failed immune checkpoint inhibitor therapy
- Subjects who require steroid or other immunosuppressive medications within 2 weeks of the PET scan.
- Females of childbearing potential who are not surgically sterile, not refraining from sexual activity, or not using effective methods of contraception. Females of childbearing potential must not be pregnant or breastfeeding at screening and agree to avoid becoming pregnant for 24 hours following study drug administration.
- Females and males must agree to refrain from sexual activity or to use effective contraceptive methods for 24 hours following study drug administration and during study participation

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04721756
Contact: Avid Clinical Operations | 215-298-0700 | clinicaloperations@avidrp.com |
Australia, Victoria | |
Olivia Newton-John Cancer Institute and Austin Health | Recruiting |
Heidelberg, Victoria, Australia | |
Contact: Tina Chen +613 94965748 Tina.CHEN@austin.org.au | |
Principal Investigator: Prof. Andrew Scott, MD |
Study Director: | Avid Medical Director | Avid Radiopharmaceuticals, Inc. |
Responsible Party: | Avid Radiopharmaceuticals |
ClinicalTrials.gov Identifier: | NCT04721756 |
Other Study ID Numbers: |
18F-LY3546117-01 |
First Posted: | January 25, 2021 Key Record Dates |
Last Update Posted: | April 25, 2022 |
Last Verified: | April 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Cancer Imaging |
Neoplasms |