ClinicalTrials.gg
WithdrawnNCT03311672Updated Oct 21, 2019

T-Cell PET Imaging With [18F]F-AraG in Lung Cancer

A Phase 2 interventional study of [18F]F-Ara-G and Pembrolizumab in Non-small Cell Lung Cancer, sponsored by University of California, San Francisco. Withdrawn. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-10-21.

Sponsored by University of California, San Francisco · Phase 2, Interventional, and Diagnostic

Why this study was withdrawn
Low Accrual

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Phase
Phase 2
Study type
Interventional
Enrollment
0
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 13 studies in Carcinoma, Non-Small-Cell Lung by University of California, San Francisco — 1 open to participants now, 2 under way, none of them phase 3. Carcinoma, Non-Small-Cell Lung · University of California, San Francisco.

Enrollment
9th of 12
0 · median 2
Started
2017
with 2 others
Phase 2
6 of 13
none open now
Registered
8th of 13
by date

Among the 13 studies in Carcinoma, Non-Small-Cell Lung by University of California, San Francisco, this one is the 9th largest by enrollment of the 12 interventional ones that give a count, is one of 3 that started in 2017, is one of 6 in phase 2, and was the 8th registered.

Carcinoma, Non-Small-Cell Lung

7,624 studies on the registry are indexed under Carcinoma, Non-Small-Cell Lung; 1,837 are open to participants now.

Browse Carcinoma, Non-Small-Cell Lung studies →

Open to participants now

1 of the 13 studies in Carcinoma, Non-Small-Cell Lung by University of California, San Francisco is open now, in 1 country. Recruiting first, the newest first:

By country, each count listing its studies:

Where they have run

Who these studies take

Of the 1,326 Carcinoma, Non-Small-Cell Lung studies recruiting now, 988 (75%) set no upper age limit and 225 (17%) stop at 75 or younger; 34 take children under 18; 40 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 13 studies in Carcinoma, Non-Small-Cell Lung by University of California, San Francisco, or all of them as a file.
02

Study summary

This is a single-center cross-sectional imaging study in patients with localized lung cancer undergoing immunotherapy with or without stereotactic radiation therapy as part of the companion clinical trial (NCT03217071; Pembrolizumab With and Without Radiotherapy for Non-Small Cell Lung Cancer). Each patient will undergo a single [18F]F-AraG PET exam as part of this study. [18F]F-AraG will be administered at a single time point intravenously prior to PET imaging. Whole-body PET will be acquired along with a whole body low dose CT (PET/CT) used for attenuation correction and anatomic localization of [18F]F-AraG uptake, SUV calculation, and volumetric selection for radiomic analyses.

Read the detailed description

This is a single-center cross-sectional imaging study in patients with localized lung cancer undergoing immunotherapy with or without stereotactic radiation therapy as part of the companion clinical trial (NCT03217071; Pembrolizumab With and Without Radiotherapy for Non-Small Cell Lung Cancer). Each patient will undergo a single [18F]F-AraG PET exam as part of this study. [18F]F-AraG will be administered at a single time point intravenously prior to PET imaging. Whole-body PET will be acquired along with a whole body low dose CT (PET/CT) used for attenuation correction and anatomic localization of [18F]F-AraG uptake, SUV calculation, and volumetric selection for radiomic analyses.

A total of 20 patients will be enrolled over an accrual period of approximately 12 months. Approximately 10 patients will be enrolled in the immunotherapy alone cohort and approximately 10 patients will be enrolled in the immunotherapy and stereotactic radiation therapy cohort.

Patients will be evaluated one day and one week via telephone after each radiopharmaceutical injection for safety follow-up. All adverse events will be recorded. Due to the noninvasive and non-therapeutic nature of the study, potential risks of the study are anticipated to be low.

03

Conditions studied

  • Non-small Cell Lung Cancer
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age greater than or equal to 18 years
  2. or cytologically documented stage I-IIIA non-small cell lung cancer (NSCLC)
  3. Eligible for with plan to undergo immunotherapy alone or both immunotherapy and stereotactic radiation therapy as part of NCT03217071
  4. In female patients, negative pregnancy test with no plans to become pregnant during the duration of the study
  5. Able to provide and follow the study guidelines

Exclusion criteria

Exclusion Criteria:

  1. Female patients who are pregnant or breastfeeding
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 2
Primary purpose
Diagnostic
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Cohort 1 - Immunotherapy Alone

    Approximately 10 patients will be enrolled in the immunotherapy alone cohort under a larger two-year industry-funded, investigator-initiated single-institution, phase II, open-label clinical trial (NCT03217071; Pembrolizumab With and Without Radiotherapy for Non-Small Cell Lung Cancer) in which patients with stage I-IIIA non-small cell lung cancer (NSCLC) are randomized to receive two cycles of systemic immunotherapy (pembrolizumab, a PD-1 inhibitor) with or without immune-priming stereotactic radiation therapy (SRT, 12 Gy) to the lateral half of the primary lung tumor prior to resection.

    Drug: [18F]F-Ara-G · Drug: Pembrolizumab · Radiation: PET/CT scan

  • Experimental
    Cohort 2 - Immunotherapy with Stereotactic Radiation

    Approximately 10 patients will be enrolled in the immunotherapy with stereotactic radiation therapy cohort under a larger two-year industry-funded, investigator-initiated single-institution, phase II, open-label clinical trial (NCT03217071; Pembrolizumab With and Without Radiotherapy for Non-Small Cell Lung Cancer) in which patients with stage I-IIIA non-small cell lung cancer (NSCLC) are randomized to receive two cycles of systemic immunotherapy (pembrolizumab, a PD-1 inhibitor) with or without immune-priming stereotactic radiation therapy (SRT, 12 Gy) to the lateral half of the primary lung tumor prior to resection.

    Drug: [18F]F-Ara-G · Drug: Pembrolizumab · Radiation: PET/CT scan

Interventions

  • Administered after two cycles of immunotherapy +/- stereotactic radiation therapy as part of the PET/CT scan.

    Also known as: 2'-deoxy-2'-[18F]fluoro-9-β-Darabinofuranosylguanine

  • All study participants will receive pembrolizumab every 3 weeks, for 2 cycles.

    Also known as: Keytruda

  • RadiationPET/CT scan

    Scan will be done after two cycles of immunotherapy +/- stereotactic radiation therapy.

06

What researchers measure

Primary outcomes

  1. The correlation between number of infiltrating CD3+ T cells/μm2 in the non-small cell lunger cancer thoracotomy specimen as quantified by immunohistochemistry and the activated T-cell concentration as determined by [18F]F-AraG PET (SUVmax)

    The correlation between number of infiltrating CD3+ T cells/μm2 in the non-small cell lunger cancer thoracotomy specimen as quantified by immunohistochemistry and the activated T-cell concentration as determined by \[18F\]F-AraG PET (SUVmax)

    Time frame: Baseline (after two cycles of pembrolizumab)

Secondary outcomes

  1. The detection of out-of-target radiation-mediated immune modulation in lymph nodes using [18F]F-AraG PET

    The detection of out-of-target radiation-mediated immune modulation in lymph nodes using \[18F\]F-AraG PET

    Time frame: Baseline (after two cycles of pembrolizumab)

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2017 to primary completion in Oct 2019, 22 months.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 11, 2017
First posted
Oct 17, 2017
StartActual
Nov 26, 2017
Primary completionActual
Oct 15, 2019
CompletionActual
Oct 15, 2019
Last update
Oct 21, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 21, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03311672
Collaborators
CellSight Technologies, Inc.
Responsible party
Sponsor
First posted
Oct 17, 2017
Start date
Nov 26, 2017
Primary completion
Oct 15, 2019
Completion
Oct 15, 2019
Last update
Oct 21, 2019

Study contacts

Sue Yom, MD
principal investigator · University of California, San Francisco

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Oct 2019. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drug tested here: F-arag f-18

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