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RecruitingNCT07140315Updated Sep 29, 2026

DK222 Study at Hopkins

A Phase 1 interventional study of [18F]DK222 radiotracer in Non-Small Cell Lung Cancer and Urothelial Cancer, sponsored by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-29.

Sponsored by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins · Phase 1, Interventional, and Treatment

Updated Sep 29, 2026Start date movedPrimary completion moved+1 moreGo to Updates ↓

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Phase
Phase 1
Study type
Interventional
Enrollment
6
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

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

Among 21 studies in Carcinoma, Non-Small-Cell Lung by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins — 3 open to participants now, 4 under way, none of them phase 3. Carcinoma, Non-Small-Cell Lung · Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins.

Planned enrollment
16th of 20
6 · median 22
Started
2027
the only one that year
Phase 1
5 of 21
2 open now
Registered
21st of 21
by date

Among the 21 studies in Carcinoma, Non-Small-Cell Lung by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, this one is the 16th largest by planned enrollment of the 20 interventional ones that give a count, is the only one that started in 2027, is one of 5 in phase 1, and was the 21st 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

3 of the 21 studies in Carcinoma, Non-Small-Cell Lung by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins are open now, in 1 country. Recruiting first, the newest first:

By country, each count listing its studies:

All 3 open 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 →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 21 studies in Carcinoma, Non-Small-Cell Lung by Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, or all of them as a file.
02

Study summary

This Phase 1 clinical trial will test a new drug called [18F]DK222 in people with cancer. The goal is to see if the drug is safe, how it spreads through the body, how long it stays in the body, and how much radiation it gives off. [18F]DK222 is designed to attach strongly and specifically to a protein called PD-L1, which helps cancer hide from the immune system.

This is a first in human study to collect preliminary safety and toxicity data of [18F]DK222.

03

Conditions studied

  • Non-Small Cell Lung Cancer
  • Urothelial Cancer

Keywords

  • PD-L1
  • PD-1
  • PET
  • Imaging
  • MSCLC
  • UC
  • bladder cancer
  • lung cancer
  • radiotracer
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

  • Subjects must sign prior to inclusion in this trial.
  • Subjects must be ≥18 years of age and competent to give informed consent.
  • Subjects must be diagnosed with confirmed NSCLC or UC and eligible for anti-PD(L)-1 therapy.
  • immunohistochemistry result using a Clinical Laboratory Improvement Amendments (CLIA) assay must be available or if not available then sufficient tissue must be available to perform PD-L1 testing.
  • Subjects must score at least 0 to 2 on the (ECOG) Performance Status.
  • Subjects must have adequate organ function as defined by the following laboratory values (determined within 28 days prior to randomization/registration) or as deemed not by physician on record:

    • White blood cells (WBC) ≥ 2000 /μL
    • (ANC) ≥ 1500 /μL
    • ≥ 100 x103 /μL
    • ≥ 9 g/dL or ≥ 5.6 mmol/L
    • Serum creatinine ≤ 1.5 times (ULN) or greater than or equal to 60 ml/min (using the Cockcroft-Gault formula)
    • (AST) and alanine aminotransferase (ALT) ≤ 3 times ULN
    • ≤ 1.5 times ULN (Except patients with the Gilbert Syndrome, for whom a maximum of ≤ 3.0 mg/dL is acceptable)
  • Women of (WOCBP) should have a negative serum pregnancy test within 24 hours prior to receiving the first administration [18F]DK222. Women with non-childbearing potential may be included if either surgically sterile or have been for ≥ 1 year.
  • WOCBP and men who are sexually active with WOCBP must agree to use appropriate method(s) of .

Exclusion criteria

Exclusion Criteria:

  • Prior treatment, in either de novo disease or during this recurrence, with an or anti-PD-L2 antibody. A minimum of 4 month is required for patients treated with anti-PD-L1 or anti-PD-L2 therapy. Patients with disease that was previously treated with anti-PD-1, anti-PD-L1, anti-PD-L2 antibody, or any other antibody or drug specifically targeting T-cell co-stimulation or immune checkpoint pathways, but now have a new recurrence, would be eligible.
  • Subjects who have not recovered to (CTCAE) v5.0 Grade 1 or better from the adverse events due to previous cancer therapy.
  • Treatment with in an increasing dosage in the 7 days prior to the first administration of anti-PD1. (A stable or decreasing dosage of ≤ 10 mg dexamethasone or equivalent is allowed. In addition, inhaled or topical steroids and adrenal replacement doses are permitted in the absence of active disease.)
  • A severe reaction to prior treatment with a monoclonal antibody, or known hypersensitivity to study drugs components.
  • Any serious or uncontrolled medical disorder or active infection that, in the opinion of the investigator, may increase the risk associated with study participation, study drug administration, or would impair the ability of the patients to receive protocol therapy.
  • Women of with a positive serum or urine pregnancy test (minimum sensitivity 10 IU/L or equivalent units of HCG) within 24 hours prior to the start of imaging.
  • Breastfeeding women.
  • Inability to comply with other requirements of the protocol.
Terms in these criteria, in plain language(20)

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.

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.

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.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
6 participants (estimated)

Study arms

  • Experimental
    [18F]DK222 radiotracer

    The study is an open label, single-arm study designed to evaluate the safety and diagnostic performance of \[18F\]DK222 radiotracer in NSCLC and UC participants. Participants will undergo a PET-CT scan after \[18F\]DK222 is injected into the participant's vein an intravenous line. This is the imaging procedure to assess where \[18F\]DK222 has accumulated in the body.

    Drug: [18F]DK222 radiotracer

Interventions

  • Drug[18F]DK222 radiotracer

    \[18F\]DK222 is an investigational radiotracer used detect non-small cell lung cancer (NSCLC) or Urothelial Cancer (UC) tissue in the body when used with positron emission tomography/computed tomography. Participants will undergo a PET-CT scan after \[18F\]DK222 is injected into the participant's vein an intravenous line.

06

What researchers measure

Primary outcomes

  1. Safety of [18F]DK222 as assessed by number of grade 3-5 adverse events

    Any grade 3-5 toxicity attributed to \[¹⁸F\]DK222 administration will be considered as not meeting the safety endpoint. All adverse events (AEs) will be graded according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.

    Time frame: Once up to 10 days post radiotracer injection

Secondary outcomes

  1. Tolerability of [18F]DK222 as assessed by number of grade 3-5 adverse events

    . Any grade 3-5 toxicity attributed to \[¹⁸F\]DK222 administration will be considered as not meeting the tolerability endpoint. All adverse events (AEs) will be graded according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.

    Time frame: Once up to 10 days post radiotracer injection

07

Study locations

1 of 1 sites recruiting
  • Johns Hopkins Hospital
    Baltimore, Maryland 21287, United States
    Recruiting
    • Mehreen Sr. Clinical Research Program Manager, MBBS · Contactmnabi1@jh.edu · 410-502-0736
    • Seyed Ali Mosallaie, MD · Principal investigator
08

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedDate before it movedWhere the date was before it movedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Jan 2027; primary completion for Jan 2028, 12 months later.

Of 226 non-industry phase 1 interventional studies under Carcinoma, Non-Small-Cell Lung, half reached primary completion within 54 months of starting (the median), counting those still running; a quarter within 36 and three quarters within 80. This study's planned 12 months is below that.

Counting every sponsor, half of 699 studies reached it within 50 months; a quarter within 31 and three quarters within 70.

Since we started tracking on Sep 25, 2026, the dates moved once, on Sep 29, 2026: start Sep 2026 → Jan 2027, primary completion Sep 2027 → Jan 2028 and completion Sep 2027 → Jan 2028.

Earlier changes are on the record history on ClinicalTrials.gov ↗

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

Registered
Aug 18, 2025
First posted
Aug 24, 2025
StartEst.
Jan 31, 2027was Sep 2026
Primary completionEst.
Jan 31, 2028was Sep 2027
CompletionEst.
Jan 31, 2028was Sep 2027
Last update
Sep 29, 2026
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.
Start date
Sep 1, 2026→Jan 31, 2027
Sep 29, 2026
Primary completion
Sep 1, 2027→Jan 31, 2028
Sep 29, 2026
Study completion
Sep 1, 2027→Jan 31, 2028
Sep 29, 2026
Show all 1 update
  1. Sep 29, 2026
    Start date Sep 1, 2026→Jan 31, 2027
    Primary completion Sep 1, 2027→Jan 31, 2028
    Study completion Sep 1, 2027→Jan 31, 2028
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07140315
Responsible party
Sponsor
First posted
Aug 24, 2025
Start date
Jan 31, 2027 (estimated)
Primary completion
Jan 31, 2028 (estimated)
Completion
Jan 31, 2028 (estimated)
Last update
Sep 29, 2026

Study contacts

Mehreen Nabi
Contact
mnabi1@jh.edu
14109296586
Seyed Ali Mosallaie, MD
principal investigator · Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

Oversight

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

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