ClinicalTrials.gg
TerminatedNCT03325166Updated Aug 10, 2022Results posted

Pembrolizumab and Magnetic Resonance Imaging With Ferumoxytol in Treating Patients With Non-small Cell Lung Cancer and Brain Metastases

A Phase 2 interventional study of Ferumoxytol and Laboratory Biomarker Analysis in Lung Carcinoma Metastatic in the Brain and Stage IV Lung Non-Small Cell Cancer AJCC v7, sponsored by OHSU Knight Cancer Institute. Terminated at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-08-10.

Sponsored by OHSU Knight Cancer Institute · Phase 2, Interventional, and Treatment

Why this study was terminated
Low accrual

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Phase
Phase 2
Study type
Interventional
Enrollment
2
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This pilot phase II trial study evaluates the usefulness of the ferumoxytol steady state magnetic resonance imaging (MRI) technique for response assessment after pembrolizumab and radiation therapy in non-small cell lung cancer that has spread to the brain (brain metastases). The interactions of monoclonal antibodies such as pembrolizumab, and the body's immune system may result in an anti-tumor effect. However, it may also increase inflammation around the tumor which cannot be differentiated from true tumor growth on standard MRI. This study evaluates ferumoxytol as an MRI contrast agent to differentiate this treatment related inflammation from true tumor growth.

Read the detailed description

PRIMARY OBJECTIVE:

I. Determine the sensitivity and specificity of relative cerebral blood volume (rCBV) measured by steady state magnetic resonance imaging (MRI) with ferumoxytol in predicting true versus (vs) pseudoprogression after stereotactic radiosurgery (SRS) and intravenous (IV) pembrolizumab in subjects with brain metastases from non-small cell lung cancer (NSCLC).

SECONDARY OBJECTIVES:

I. Evaluate the safety and tolerability of pembrolizumab when given with SRS in subjects with brain metastasis.

II. Evaluate progression free survival, overall survival, best response in brain disease, best response in systemic disease, and duration of best responses of brain and systematic diseases.

EXPLORATORY OBJECTIVES:

I. Compare the immune response as determined by the volume, pattern and intensity of delayed (24 hour [hr]) ferumoxytol uptake between subjects who develop true vs pseudoprogression.

II. Investigate the serum immunological parameters and correlate clinical as well as radiological response with systemic immune response to pembrolizumab as measured by immunological panel.

III. Compare the changes percentage expression in PDL-1 in the biopsy tissue before and after therapy at the time of progression.

IV. In subjects with measurable systemic lesions, investigate the feasibility of measuring vascular volume fraction (VVF), vessel size index (VSI) and vessel density index (VDI) as surrogate for response (true vs. pseudoprogression, as measured with Response Evaluation Criteria in Solid Tumors [RECIST] 1.1 criteria).

OUTLINE:

Patients receive pembrolizumab intravenously (IV) over 30 minutes on day 1. Cycles repeat every 3 weeks for up to 2 years (or up to 32 cycles) in the absence of disease progression or unacceptable toxicity. Patients also receive ferumoxytol IV and undergo MRI at baseline, 12 weeks after radiation, at suspected radiographic progression, and 6 weeks after suspected radiographic progression.

After completion of study treatment, patients are followed up at 30 days, every 12 weeks for up to 1 year, and then every 6 months thereafter.

02

Conditions studied

  • Lung Carcinoma Metastatic in the Brain
  • Stage IV Lung Non-Small Cell Cancer AJCC v7
03

In context

Lead sponsor

OHSU Knight Cancer Institute is the lead sponsor of 243 studies on the registry; 44 are open to participants now.

Of its 27 completed or terminated interventional studies of FDA-regulated products, 15 (56%) have results posted.

Counted across the registry records on this site, refreshed daily.

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

  • Be willing and able to provide written /assent for the trial
  • Have a confirmed diagnosis of NSCLC
  • Have up to ten measurable (by Response Assessment in Neuro-Oncology Criteria [RANO]) planned for stereotactic radiosurgery
  • Have expression of greater than 1%
  • Subjects may already be receiving PD-(L)1 (including pembrolizumab or other PD-[L]1 inhibitors such as nivolumab, atezolizumab, avelumab, durvalumab) for the treatment of systemic disease; a of at least 3 weeks is required from the last dose of PD-(L)1 inhibitor
  • Subjects with EGFR or ALK genomic tumor aberrations should have documented disease progression on Food and Drug Administration (FDA)-approved therapy for these aberrations; subjects with EGFR or ALK genomic tumor aberrations who develop new brain metastases may be included at the discretion of the treating physician
  • Have a performance status of 0-2 on the (ECOG) performance scale
  • (ANC) >= 1,500 /mcL
  • >= 100,000/mcL
  • >= 9 g/dL or >= 5.6 mmol/L without transfusion or erythropoietin (EPO) dependency (within 7 days of assessment)
  • Serum creatinine =\< 1.5 X (ULN) OR measured or calculated ( [GFR] can also be used in place of creatinine or creatinine clearance [CrCl]) >= 60 mL/min for subject with creatinine levels > 1.5 X institutional ULN

    • Creatinine clearance should be calculated per institutional standard
  • Serum total =\< 1.5 X ULN OR direct bilirubin =\< ULN for subjects with total bilirubin levels > 1.5 ULN
  • (AST) (serum glutamic-oxaloacetic transaminase [SGOT]) and alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =\< 2.5 X ULN OR =\< 5 X ULN for subjects with liver
  • Albumin >= 2.5 mg/dL
  • (INR) or prothrombin rime (PT) =\< 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or partial thromboplastin time (PTT) is within therapeutic range of intended use of anticoagulants
  • Activated partial thromboplastin time (aPTT) =\< 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants
  • Female subject of should have a negative urine or serum pregnancy within 72 hours prior to receiving the first dose of study medication; if the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required
  • Female subjects of childbearing potential should be willing to use 2 methods of or be surgically sterile, or abstain from heterosexual activity for the course of the study through 120 days after the last dose of study medication; subjects of childbearing potential are those who have not been surgically sterilized or have not been free from menses for > 1 year; male subjects should agree to use an adequate method of contraception starting with the first dose of study therapy through 120 days after the last dose of study therapy

Exclusion criteria

Exclusion Criteria:

  • Has evidence of on MRI or in cerebrospinal fluid (CSF)
  • If tumor demonstrates EGFR or ALK genomic tumor aberrations, subject should have documented disease progression on FDA-approved therapy for these aberrations
  • Has a diagnosis of immunodeficiency and is not on continuous daily therapy within 7 days prior to the first dose of trial treatment; (subjects may receive before or after SRS to prevent or manage cerebral edema; inhalational steroids are permitted)
  • Has previously progressed on a or PD-L1 checkpoint inhibitor for systemic disease
  • Has a known history of active TB (Bacillus tuberculosis)
  • Has to pembrolizumab, gadolinium, or ferumoxytol or any of their
  • Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to study day 1 or who has not recovered (i.e., =\< grade 1 or at baseline) from adverse events due to agents administered more than 4 weeks earlier

    • Note: The use of denosumab is an exception to this criterion
  • Subject who has not recovered (i.e., =\< grade 1 or at baseline) from adverse events due to a previously administered agent

    • Note: Subjects with =\< grade 2 neuropathy are an exception to this criterion and may qualify for the study
    • Note: Subjects with =\< grade 2 hematologic toxicities are an exception to this criterion and may qualify for the study
    • Note: Subjects with =\< grade 2 fatigue are an exception to this criterion and may qualify for the study
  • Has a known additional that is progressing or requires active treatment; exceptions include basal cell carcinoma of the skin or squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer
  • Has active disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs); replacement therapy (eg., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment
  • Has known history of, or any evidence of active, non-infectious pneumonitis
  • Has an active infection requiring systemic therapy
  • Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator
  • Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial
  • Is pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the pre-screening or screening visit through 120 days after the last dose of trial treatment
  • Has a known history of (HIV) (HIV 1/2 antibodies)
  • Has known active (e.g., hepatitis B surface antigen [HBsAg] reactive) or (e.g., hepatitis C virus [HCV] ribonucleic acid [RNA] [qualitative] is detected)
  • Has received a within 30 days of planned start of study therapy

    • Note: Seasonal influenza vaccines for injection are generally inactivated flu vaccines and are allowed; however intranasal influenza vaccines (e.g., Flu-Mist) are live attenuated vaccines, and are not allowed
  • Subjects with signs of uncal herniation, such as acute pupillary enlargement, rapidly developing motor changes (over hours), or rapidly decreasing level of consciousness, are not eligible
  • Subjects with known allergic or hypersensitivity reactions to parenteral iron, parenteral dextran, parenteral iron-dextran, or parenteral iron-polysaccharide preparations; subjects with significant drug or other allergies or autoimmune diseases may be enrolled at the investigator's discretion
  • Subjects who have a for 3 tesla (3T) MRI: metal in their bodies (a cardiac pacemaker or other incompatible device), are severely agitated, or have an allergy to gadolinium containing contrast material
  • Subjects with known iron overload (genetic hemochromatosis); in subjects with a family history of hemochromatosis, hemochromatosis must be ruled out prior to study entry with normal values of the following blood tests: transferrin saturation (TS) test and serum ferritin (SF) test; all associated costs will be paid by the study
  • Subject who have received ferumoxytol within 3 weeks of study entry
  • Subjects with three or more drug allergies from separate drug classes
Terms in these criteria, in plain language(31)

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.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

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.

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.

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.

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.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

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.

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.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

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.

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.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

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.

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.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

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.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

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.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
2 participants (actual)

Study arms

  • Experimental
    Treatment (pembrolizumab, ferumoxytol MRI)

    Patients receive pembrolizumab IV over 30 minutes on day 1. Cycles repeat every 3 weeks for up to 2 years (or up to 32 cycles) in the absence of disease progression or unacceptable toxicity. Patients also receive ferumoxytol IV and undergo MRI at baseline, 12 weeks after radiation, at suspected radiographic progression, and 6 weeks after suspected radiographic progression.

    Drug: Ferumoxytol · Other: Laboratory Biomarker Analysis · Procedure: Magnetic Resonance Imaging · Biological: Pembrolizumab

Interventions

  • Given IV

    Also known as: Feraheme, Ferumoxytol Non-Stoichiometric Magnetite

  • OtherLaboratory Biomarker Analysis

    Correlative studies

  • ProcedureMagnetic Resonance Imaging

    Undergo MRI

    Also known as: Magnetic Resonance Imaging Scan, Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance, MR Imaging, MRI, MRI Scan, NMR Imaging, NMRI, Nuclear Magnetic Resonance Imaging

  • BiologicalPembrolizumab

    Given IV

    Also known as: Keytruda, Lambrolizumab, MK-3475, SCH 900475

06

What researchers measure

Primary outcomes

  1. Sensitivity and Specificity of Relative Cerebral Blood Volume

    Will be analyzed using proportions and exact 95% confidence intervals. Sensitivity analysis will be based on subjects (lesions) with surgical results, and specificity analysis will be based on lesions with pseudo-progression determined based on surgical results or follow-up scan.

    Time frame: Up to 2 years

Secondary outcomes

  1. Safety and Tolerability of Pembrolizumab When Given With Stereotactic Radiosurgery (SRS) in Subjects With Brain Metastasis

    Safety and tolerability will be determined using the Common Terminology Criteria for Adverse Events V4.0 (CTCAE) grades. They will be analyzed using percentages of patients who developed adverse events and exact 95% confidence intervals.

    Time frame: Up to 2 years

  2. Duration of Best Response of Brain and Systematic Disease

    The duration of best response in brain and the duration of best response in systemic disease will be measured in months from the date on which criteria are met for complete response, partial response or stable disease until the first date that recurrent or progressive disease is objectively documented. Durations of best response will be analyzed using the Kaplan-Meier product limit estimates, taking censoring into account.

    Time frame: Up to 2 years

  3. Best Response in Brain Disease

    Best response in brain disease will be measured based on brain MRI scan showing the best response to treatment and analyzed using proportions of categories of best response (e.g., complete remission, partial remission, progression, stable disease etc.) and exact 95% confidence intervals.

    Time frame: Up to 2 years

  4. Best Response in Systematic Disease

    Best response in systematic disease will be measured based on body CT scan showing the best response to treatment and analyzed using proportions of categories of best response (e.g., complete remission, partial remission, progression, stable disease etc.) and exact 95% confidence intervals.

    Time frame: Up to 2 years

  5. Progression Free Survival

    Progression free survival will be measured in months from the date of diagnosis to the date of documented progression for each patient. Results will be analyzed using the Kaplan-Meier product limit estimates for all patients, taking censoring into account.

    Time frame: Up to 2 years

  6. Overall Survival

    Overall survival will be measured in months from date of diagnosis to date of death. Results will be analyzed using the Kaplan-Meier product limit estimates for all patients, taking censoring into account.

    Time frame: Up to 2 years

07

Results

Posted Aug 10, 2022
Limitations and caveats
Due to very low enrollment and staffing issues, data was not collected for analysis of study outcomes.

Participant flow

Participant flow — Overall Study
MilestoneTreatment (Pembrolizumab, Ferumoxytol MRI)
Started2
Completed1
Not completed1
Withdrew: Adverse event1

Outcome measures

PrimarySensitivity and Specificity of Relative Cerebral Blood Volume

Will be analyzed using proportions and exact 95% confidence intervals. Sensitivity analysis will be based on subjects (lesions) with surgical results, and specificity analysis will be based on lesions with pseudo-progression determined based on surgical results or follow-up scan.

Time frame:
Up to 2 years

No measurements were reported for this outcome.

SecondarySafety and Tolerability of Pembrolizumab When Given With Stereotactic Radiosurgery (SRS) in Subjects With Brain Metastasis

Safety and tolerability will be determined using the Common Terminology Criteria for Adverse Events V4.0 (CTCAE) grades. They will be analyzed using percentages of patients who developed adverse events and exact 95% confidence intervals.

Time frame:
Up to 2 years

No measurements were reported for this outcome.

SecondaryDuration of Best Response of Brain and Systematic Disease

The duration of best response in brain and the duration of best response in systemic disease will be measured in months from the date on which criteria are met for complete response, partial response or stable disease until the first date that recurrent or progressive disease is objectively documented. Durations of best response will be analyzed using the Kaplan-Meier product limit estimates, taking censoring into account.

Time frame:
Up to 2 years

No measurements were reported for this outcome.

SecondaryBest Response in Brain Disease

Best response in brain disease will be measured based on brain MRI scan showing the best response to treatment and analyzed using proportions of categories of best response (e.g., complete remission, partial remission, progression, stable disease etc.) and exact 95% confidence intervals.

Time frame:
Up to 2 years

No measurements were reported for this outcome.

SecondaryBest Response in Systematic Disease

Best response in systematic disease will be measured based on body CT scan showing the best response to treatment and analyzed using proportions of categories of best response (e.g., complete remission, partial remission, progression, stable disease etc.) and exact 95% confidence intervals.

Time frame:
Up to 2 years

No measurements were reported for this outcome.

SecondaryProgression Free Survival

Progression free survival will be measured in months from the date of diagnosis to the date of documented progression for each patient. Results will be analyzed using the Kaplan-Meier product limit estimates for all patients, taking censoring into account.

Time frame:
Up to 2 years

No measurements were reported for this outcome.

SecondaryOverall Survival

Overall survival will be measured in months from date of diagnosis to date of death. Results will be analyzed using the Kaplan-Meier product limit estimates for all patients, taking censoring into account.

Time frame:
Up to 2 years

No measurements were reported for this outcome.

Adverse events

Collected over Adverse experiences will be recorded throughout the study and during the follow-up period (Up to 3 years).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Treatment (Pembrolizumab, Ferumoxytol MRI)0/2 (0%)1/2 (50%)2/2 (100%)
Most frequent serious events
Most frequent serious events
EventTreatment (Pembrolizumab, Ferumoxytol MRI)
HyperglycemiaMetabolism and nutrition disorders1/2
Most frequent other events
Showing 10 of 29
Most frequent other events
EventTreatment (Pembrolizumab, Ferumoxytol MRI)
HeadacheNervous system disorders2/2
InsomniaPsychiatric disorders1/2
Eye disorders- involuntary blinkingEye disorders1/2
Urinary tract infectionInfections and infestations1/2
DiarrheaGastrointestinal disorders1/2
HypomagnesemiaMetabolism and nutrition disorders1/2
HyperglycemiaMetabolism and nutrition disorders1/2
AnemiaBlood and lymphatic system disorders1/2
DehydrationMetabolism and nutrition disorders1/2
HyponatremiaMetabolism and nutrition disorders1/2

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Treatment (Pembrolizumab, Ferumoxytol MRI)
<=18 years0
Between 18 and 65 years1
>=65 years1
Age, Continuous
Age, Continuous(years)Treatment (Pembrolizumab, Ferumoxytol MRI)
Mean53.5 (42 to 65)
Sex: Female, Male
Sex: Female, Male(Participants)Treatment (Pembrolizumab, Ferumoxytol MRI)
Female1
Male1
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Treatment (Pembrolizumab, Ferumoxytol MRI)
Hispanic or Latino0
Not Hispanic or Latino2
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Treatment (Pembrolizumab, Ferumoxytol MRI)
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American0
White2
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)Treatment (Pembrolizumab, Ferumoxytol MRI)
United States2
08

Study locations

1 site
  • OHSU Knight Cancer Institute
    Portland, Oregon 97239, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2017 to primary completion in Mar 2021, 39 months.

Results were first posted in Aug 2022, 1 year 5 months after primary completion.

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

Registered
Oct 6, 2017
First posted
Oct 30, 2017
StartActual
Nov 3, 2017
Primary completionActual
Mar 1, 2021
CompletionActual
Mar 1, 2021
Results first posted
Aug 10, 2022
Last update
Aug 10, 2022
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 Aug 10, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03325166
Responsible party
Edward Neuwelt (Principal Investigator, OHSU Knight Cancer Institute) — Principal investigator
First posted
Oct 30, 2017
Start date
Nov 3, 2017
Primary completion
Mar 1, 2021
Completion
Mar 1, 2021
Results posted
Aug 10, 2022
Last update
Aug 10, 2022

Study contacts

Edward Neuwelt, MD
principal investigator · OHSU Knight Cancer Institute

Oversight

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

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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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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Ferrosoferric Oxide

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