ClinicalTrials.gg
CompletedNCT03473925Updated Aug 28, 2024Results posted

Efficacy and Safety Study of Navarixin (MK-7123) in Combination With Pembrolizumab (MK-3475) in Adults With Selected Advanced/Metastatic Solid Tumors (MK-7123-034)

A Phase 2 interventional study of Navarixin and Pembrolizumab in Solid Tumors, Non-small Cell Lung Cancer and Castration Resistant Prostate Cancer, sponsored by Merck Sharp & Dohme LLC. Completed at 14 sites in 5 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-08-28.

Sponsored by Merck Sharp & Dohme LLC (part of Merck & Co., Inc) · Phase 2, Interventional, and Treatment

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Phase
Phase 2
Study type
Interventional
Enrollment
107
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

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

Among 91 studies in Carcinoma, Non-Small-Cell Lung by Merck & Co., Inc — 14 open to participants now, 26 under way, 18 of them phase 3. Carcinoma, Non-Small-Cell Lung · Merck & Co., Inc.

Enrollment
49th of 88
107 · median 149
Started
2018
with 5 others
Phase 2
24 of 91
2 open now
Registered
44th of 91
by date

Among the 91 studies in Carcinoma, Non-Small-Cell Lung by Merck & Co., Inc, this one is the 49th largest by enrollment of the 88 interventional ones that give a count, is one of 6 that started in 2018, is one of 24 in phase 2, and was the 44th 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

14 of the 91 studies in Carcinoma, Non-Small-Cell Lung by Merck & Co., Inc are open now, in 12 countries. Recruiting first, the newest first:

9 more — sign in →

By country, each count listing its studies:

All 14 open studies →

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.

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02

Study summary

The purpose of this study is to assess the efficacy and safety of navarixin (MK-7123) in combination with pembrolizumab (MK-3475) in adults with one of three types of solid tumors: Programmed Death-Ligand 1 (PD-L1) positive refractory non-small cell lung cancer (NSCLC), castration resistant prostate cancer (CRPC) or microsatellite stable (MSS) colorectal cancer (CRC).

03

Conditions studied

  • Solid Tumors
  • Non-small Cell Lung Cancer
  • Castration Resistant Prostate Cancer
  • Microsatellite Stable Colorectal 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

All Participants

  • Has one of the following - or cytologically-confirmed advanced/ solid tumors: NSCLC, CRPC, or MSS CRC, by pathology report and has received, or been intolerant to, or has been ineligible for all treatment known to confer clinical benefit.
  • Has Stage III or Stage IV disease that is not surgically resectable.
  • Has by 1.1 criteria as assessed by the local site investigator/radiology.
  • Has supplied tumor tissue from either a newly obtained or an archival specimen for biomarker analysis.
  • Has an (ECOG) performance status of 0 or 1.
  • Male participants must agree to use during the treatment period and for at least 120 days after the last dose of study treatment and refrain from donating sperm during this period.
  • Female participants must agree to follow the contraceptive guidance during the treatment period and for at least 120 days after the last dose of study treatment.
  • Demonstrates adequate organ function.

Non-small Cell Lung Cancer (NSCLC) Participants

  • Has histologically or cytologically confirmed diagnosis of Stage IV metastatic NSCLC.
  • Has progressed on treatment with an anti-Programmed Death-Ligand 1 () monoclonal antibody (mAb) administered either as monotherapy, or in combination with other checkpoint inhibitors or other therapies. PD-L1 treatment progression is defined by meeting all of the following criteria: a) Has received ≥2 doses of an approved anti-PD-L1 mAb; b) Has demonstrated disease progression after anti-PD-L1 as defined by RECIST 1.1; c) Progressive disease has been documented within 12 weeks from the last dose of anti-PD-L1 mAb.

Castration Resistant Prostate Cancer (CRPC) Participants

  • Has histologically- or cytologically-confirmed adenocarcinoma of the prostate. Components of small cell prostate cancer are permitted.
  • Has prostate cancer progression on the most recent treatment, as determined by the investigator, by means of one of the following: a) Prostate-Specific Antigen (PSA) progression using local laboratory values as defined by a minimum of 2 rising PSA levels with an interval of ≥1 week between each assessment where the PSA value at screening should be ≥2 ng/mL; b) Radiographic disease progression in soft tissue based on RECIST 1.1 criteria with or without PSA progression; c) Radiographic disease progression in bone defined as the appearance of 2 or more new bone lesions on bone scan with or without PSA progression.
  • Has progressed on at least one second generation anti-androgen therapy (e.g., enzalutamide, abiraterone).
  • Has ongoing androgen deprivation with serum testosterone \<50 ng/dL (\<2.0 nM).

Microsatellite Stable Colorectal Cancer (MSS-CRC) Participants

  • Has a histologically proven locally advanced unresectable or metastatic (Stage IV) CRC.
  • Has locally confirmed (MSS) CRC; participants with microsatellite instability-high (MSI-H) or microsatellite unstable CRC are not eligible.
  • Has been previously treated with standard therapies, which must include fluoropyrimidine, oxaliplatin, and irinotecan.

Exclusion criteria

Exclusion Criteria:

  • Has a known additional that is progressing or has required active treatment within the past 2 years. Note: Participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ (e.g. breast carcinoma, cervical cancer in situ) that have undergone potentially curative therapy are not excluded.
  • Has known active central nervous system (CNS) and/or carcinomatous meningitis. Participants with previously treated may participate provided they are radiologically stable, i.e., without evidence of progression for at least 4 weeks by repeat imaging, clinically stable and without requirement of treatment for at least 14 days prior to first dose of study treatment.
  • Has had a severe reaction to treatment with any mAb or components of the study treatment(s).
  • Has an active disease that has required systemic treatment in the past 2 years except vitiligo or resolved childhood asthma/atopy. Participants who have previously been permanently discontinued from PD-(L)1 therapy due to immune related side effects are not eligible for this study.
  • Has an active infection requiring systemic therapy.
  • Has symptomatic ascites or pleural effusion.
  • Has interstitial lung disease that required oral or intravenous glucocorticoids to assist with management.
  • Has a history of (non-infectious) pneumonitis that required steroids or has current pneumonitis.
  • Has undergone prior hematopoietic stem cell transplantation within the last 5 years. Note: Participants who have had a stem cell transplant >5 years ago are eligible as long as there are no symptoms of (GVHD).
  • Has a known history of (HIV) infection.
  • Has a known history of or known active virus infection.
  • Has a history or current evidence of a gastrointestinal condition (e.g. inflammatory bowel disease, Crohn's disease, ulcerative colitis) or impaired liver function or diseases that in the opinion of the Investigator may significantly alter the absorption or metabolism of oral medications; any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the participant's participation for the full duration of the study, make administration of the study drugs hazardous, or make it difficult to monitor AEs such that it is not in the best interest of the participant to participate, in the opinion of the treating Investigator.
  • Is pregnant or expecting to conceive or father children within the projected duration of the study.
  • Has undergone major surgery and has not recovered adequately from any toxicity and/or complications from the intervention prior to starting study treatment.
  • Has CRPC or MSS CRC and has received prior therapy with an , anti-PD-L1, or anti-PD-L2 agent.
  • Has been treated with an agent directed to another stimulatory or co-inhibitory Tcell receptor (e.g. cytotoxic T-lymphocyte protein 4 [CTLA-4], tumor necrosis factor receptor superfamily, member 4 [OX 40], tumor necrosis factor receptor superfamily member 9 [CD137]).
  • Has received prior systemic anti-cancer therapy including agents or has used an investigational device within 28 days prior to the first dose of study treatment.
  • Has received prior radiotherapy (not to target lesions) within 2 weeks of start of study treatment.
  • Is expected to require any other form of antineoplastic therapy while on study.
  • Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy in excess of replacement doses (prednisone ≤10 mg/day is acceptable), or on any other form of medication.
  • Has received a live-virus vaccine within 30 days prior to first dose of study treatment.
  • Has been previously treated with a chemokine receptor 2 (CXCR2) inhibitor (e.g. AZD5069, reparixin, danirixin, LY3041658 Ab, HuMax-IL8, etc.).
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.

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.

Metastases

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

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

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.

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.

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.

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.

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.

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.

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.

Allogeneic and autologous transplant

Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.

GVHD (graft-versus-host disease)

After a transplant from a donor, the donor’s immune cells attack the recipient’s body, often the skin, gut or liver.

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.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

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.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
107 participants (actual)

Study arms

  • Experimental
    Navarixin 30 mg + Pembrolizumab 200 mg

    Participants received 30 mg navarixin via oral capsules once daily, plus 200 mg pembrolizumab via IV infusion on Day 1 of each 3-week cycle for up to 35 administrations (up to approximately 2 years

    Drug: Navarixin · Biological: Pembrolizumab

  • Experimental
    Navarixin 100 mg + Pembrolizumab 200 mg

    Participants received 100 mg navarixin via oral capsules once daily, plus 200 mg pembrolizumab via IV infusion on Day 1 of each 3-week cycle for up to 35 administrations (up to approximately 2 years).

    Drug: Navarixin · Biological: Pembrolizumab

Interventions

  • Oral capsules

    Also known as: MK-7123, SCH 527123

  • BiologicalPembrolizumab

    Intravenous infusion

    Also known as: MK-3475

06

What researchers measure

Primary outcomes

  1. Objective Response Rate (ORR) Based on Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1)

    ORR is defined as the percentage of participants who have a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1. ORR was estimated using an exact method based on the binomial distribution, and the 95% confidence interval was estimated by the method of Clopper-Pearson.

    Time frame: Up to approximately 2 years

  2. Number of Participants With Dose-limiting Toxicities (DLTs) During Treatment Cycle 1

    The following toxicities are considered a DLT, assessed as related to study treatment: Grade 4 non-hematologic toxicity, Grade 4 anemia, Grade 3 anemia lasting \>7 days or requiring transfusion, Grade 4 hematologic toxicity lasting ≥7 days, except thrombocytopenia, a) Grade 4 thrombocytopenia of any duration, b) Grade 3 thrombocytopenia associated with bleeding, Grade 3 non-hematologic toxicity lasting \>3 days, any Grade 3 or Grade 4 non-hematologic laboratory value if: medical intervention is required or the abnormality leads to hospitalization or persists for \>72 hours, Liver test abnormalities: Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \>3X Upper Limit of Normal (ULN) with total bilirubin (TBL) \>2X ULN with no elevation in alkaline phosphatase (AP \<2X ULN), Grade 3 or Grade 4 febrile neutropenia, inability to administer ≥75% of the planned navarixin dose due to drug-related tolerability, delay in Cycle 2 start by \>2 weeks due to toxicity

    Time frame: Up to 21 days

  3. Number of Participants Who Experience at Least One Adverse Event (AE)

    An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study treatment.

    Time frame: Up to approximately 27 months

  4. Number of Participants Who Discontinue Study Treatment Due to an AE

    An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study treatment.

    Time frame: Up to approximately 2 years

Secondary outcomes

  1. Objective Response Rate (ORR) Per Modified RECIST 1.1 for Immune-based Therapeutics (iRECIST)

    An objective response is defined as an immune-based Complete Response (iCR: Disappearance of all target lesions) or immune-based Partial Response (iPR: At least a 30% decrease in the sum of diameters of target lesions). ORR will be assessed by the investigator based on iRECIST following administration of navarixin in combination with pembrolizumab. The percentage of participants with progressive disease per RECIST 1.1 who experience an iCR or iPR are presented.

    Time frame: Up to approximately 2 years

  2. Progression-free Survival (PFS) Per RECIST 1.1

    PFS is defined as the time from the first dose of study treatment to the first confirmed documented disease progression, or death due to any cause, whichever occurs first. Per RECIST 1.1, progressive disease is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. Note: The appearance of one or more new lesions is also considered progression. Median PFS per RECIST 1.1 was assessed by the investigator from product-limit (Kaplan-Meier) method for censored data in participants with microsatellite stable colorectal cancer (CRC); with castration-resistant prostate cancer (CRPC), and with programmed cell death ligand 1 (PD-\[L\]1) refractory non-small cell lung cancer (NSCLC).

    Time frame: Up to approximately 2 years

  3. PFS Per iRECIST

    PFS is defined as the time from the first dose of study treatment to the first documented disease progression or death due to any cause, whichever occurs first. Per iRECIST, progressive disease (PD) is defined as ≥20% increase in the sum of diameters of target lesions. Disease progression is to be confirmed by a consecutive assessment at least 4-8 weeks after first documentation and will be assessed by the investigator. Median PFS per iRECIST was assessed by the investigator from product-limit (Kaplan-Meier) method for censored data in participants with microsatellite stable colorectal cancer (CRC); with castration-resistant prostate cancer (CRPC), and with programmed cell death ligand 1 (PD-\[L\]1) refractory non-small cell lung cancer (NSCLC).

    Time frame: Up to approximately 2 years

  4. Overall Survival (OS)

    OS is defined as the time from the first dose of study treatment to death due to any cause. Median OS was assessed from product-limit (Kaplan-Meier) method for censored data in participants with microsatellite stable colorectal cancer (CRC); with castration-resistant prostate cancer (CRPC), and with programmed cell death ligand 1 (PD-\[L\]1) refractory non-small cell lung cancer (NSCLC).

    Time frame: Up to approximately 2 years

  5. Absolute Neutrophil Counts (ANC)

    Peripheral blood neutrophil counts were performed at Cycle 1 Day 3: Predose, to determine the concentration of ANC.

    Time frame: Day 3: Predose

  6. Navarixin Area Under the Plasma Concentration-Time Curve (AUC) From Time 0 to Infinity (AUC0-inf)

    Plasma samples from participants with selected advanced/metastatic solid tumors were collected to determine the navarixin plasma AUC0-inf

    Time frame: Cycle 1 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose; Cycle 1 Days 3 & 8: Predose & 6-12 hours postdose; Cycle 2 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose (Up to approximately 23 days)

  7. Navarixin Area Under the Plasma Concentration-Time Curve From Time 0 to Last (AUC0-last)

    Plasma samples from participants with selected advanced/metastatic solid tumors were collected to determine the navarixin plasma AUC0-last.

    Time frame: Cycle 1 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose; Cycle 1 Days 3 & 8: Predose & 6-12 hours postdose; Cycle 2 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose(Up to approximately 23 days)

  8. Navarixin Maximum Plasma Concentration (Cmax)

    Plasma samples from participants with selected advanced/metastatic solid tumors were collected to determine the navarixin plasma Cmax.

    Time frame: Cycle 1 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose; Cycle 1 Days 3 & 8: Predose & 6-12 hours postdose; Cycle 2 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose (Up to approximately 23 days)

  9. Navarixin Trough Plasma Concentration (Ctrough)

    Plasma samples from participants with selected advanced/metastatic solid tumors were collected at steady state on Cycle 2 Day 21 to determine navarixin Ctrough. The Arithmetic Mean and CV% are presented.

    Time frame: Cycle 2 Day 21 (Up to approximately 43 days)

07

Results

Posted Jun 29, 2022

Participant flow

Adults with one of the following types of solid tumors: Programmed Death-Ligand 1 (PD-L1) positive refractory non-small cell lung cancer (NSCLC), castration resistant prostate cancer (CRPC) or microsatellite stable (MSS) colorectal cancer (CRC), were enrolled in this study.

Participant flow — Overall Study
MilestoneNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Started5255
Treated5154
Completed00
Not completed5255
Withdrew: Death4844
Withdrew: Sponsor decision27
Withdrew: Withdrawal by subject13
Withdrew: Not treated11

Outcome measures

PrimaryObjective Response Rate (ORR) Based on Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1)

ORR is defined as the percentage of participants who have a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1. ORR was estimated using an exact method based on the binomial distribution, and the 95% confidence interval was estimated by the method of Clopper-Pearson.

Time frame:
Up to approximately 2 years
Reported as:
Number · Percentage of participants
Objective Response Rate (ORR) Based on Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1)
Percentage of participantsNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Objective Response Rate (ORR) Based on Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1)3.9 (0.5 to 13.5)1.9 (0.0 to 9.9)
PrimaryNumber of Participants With Dose-limiting Toxicities (DLTs) During Treatment Cycle 1

The following toxicities are considered a DLT, assessed as related to study treatment: Grade 4 non-hematologic toxicity, Grade 4 anemia, Grade 3 anemia lasting \>7 days or requiring transfusion, Grade 4 hematologic toxicity lasting ≥7 days, except thrombocytopenia, a) Grade 4 thrombocytopenia of any duration, b) Grade 3 thrombocytopenia associated with bleeding, Grade 3 non-hematologic toxicity lasting \>3 days, any Grade 3 or Grade 4 non-hematologic laboratory value if: medical intervention is required or the abnormality leads to hospitalization or persists for \>72 hours, Liver test abnormalities: Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \>3X Upper Limit of Normal (ULN) with total bilirubin (TBL) \>2X ULN with no elevation in alkaline phosphatase (AP \<2X ULN), Grade 3 or Grade 4 febrile neutropenia, inability to administer ≥75% of the planned navarixin dose due to drug-related tolerability, delay in Cycle 2 start by \>2 weeks due to toxicity

Time frame:
Up to 21 days
Reported as:
Count of participants · Participants
Number of Participants With Dose-limiting Toxicities (DLTs) During Treatment Cycle 1
ParticipantsNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Number of Participants With Dose-limiting Toxicities (DLTs) During Treatment Cycle 123
PrimaryNumber of Participants Who Experience at Least One Adverse Event (AE)

An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study treatment.

Time frame:
Up to approximately 27 months
Reported as:
Count of participants · Participants
Number of Participants Who Experience at Least One Adverse Event (AE)
ParticipantsNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Number of Participants Who Experience at Least One Adverse Event (AE)5054
PrimaryNumber of Participants Who Discontinue Study Treatment Due to an AE

An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study treatment.

Time frame:
Up to approximately 2 years
Reported as:
Count of participants · Participants
Number of Participants Who Discontinue Study Treatment Due to an AE
ParticipantsNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Number of Participants Who Discontinue Study Treatment Due to an AE46
SecondaryObjective Response Rate (ORR) Per Modified RECIST 1.1 for Immune-based Therapeutics (iRECIST)

An objective response is defined as an immune-based Complete Response (iCR: Disappearance of all target lesions) or immune-based Partial Response (iPR: At least a 30% decrease in the sum of diameters of target lesions). ORR will be assessed by the investigator based on iRECIST following administration of navarixin in combination with pembrolizumab. The percentage of participants with progressive disease per RECIST 1.1 who experience an iCR or iPR are presented.

Time frame:
Up to approximately 2 years
Reported as:
Number · Percentage of participants
Objective Response Rate (ORR) Per Modified RECIST 1.1 for Immune-based Therapeutics (iRECIST)
Percentage of participantsNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
iComplete Response (iCR)0.0 (0.0 to 8.2)0.0 (0.0 to 8.6)
iPartial Response (iPR)0.0 (0.0 to 8.2)0.0 (0.0 to 8.6)
SecondaryProgression-free Survival (PFS) Per RECIST 1.1

PFS is defined as the time from the first dose of study treatment to the first confirmed documented disease progression, or death due to any cause, whichever occurs first. Per RECIST 1.1, progressive disease is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. Note: The appearance of one or more new lesions is also considered progression. Median PFS per RECIST 1.1 was assessed by the investigator from product-limit (Kaplan-Meier) method for censored data in participants with microsatellite stable colorectal cancer (CRC); with castration-resistant prostate cancer (CRPC), and with programmed cell death ligand 1 (PD-\[L\]1) refractory non-small cell lung cancer (NSCLC).

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
Progression-free Survival (PFS) Per RECIST 1.1
MonthsNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
CRC1.8 (1.0 to 2.0)1.9 (1.6 to 2.0)
CRPC2.1 (1.9 to 4.1)2.1 (1.9 to 4.5)
NSCLC2.4 (1.6 to 10.2)2.1 (1.9 to 2.4)
SecondaryPFS Per iRECIST

PFS is defined as the time from the first dose of study treatment to the first documented disease progression or death due to any cause, whichever occurs first. Per iRECIST, progressive disease (PD) is defined as ≥20% increase in the sum of diameters of target lesions. Disease progression is to be confirmed by a consecutive assessment at least 4-8 weeks after first documentation and will be assessed by the investigator. Median PFS per iRECIST was assessed by the investigator from product-limit (Kaplan-Meier) method for censored data in participants with microsatellite stable colorectal cancer (CRC); with castration-resistant prostate cancer (CRPC), and with programmed cell death ligand 1 (PD-\[L\]1) refractory non-small cell lung cancer (NSCLC).

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
PFS Per iRECIST
MonthsNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
CRC4.1 (2.1 to 7.1)6.2 (3.3 to 14.4)
CRPC7.9 (5.0 to 8.6)5.2 (3.0 to 11.5)
NSCLC11.9 (3.2 to 17.5)7.0 (2.4 to 14.4)
SecondaryOverall Survival (OS)

OS is defined as the time from the first dose of study treatment to death due to any cause. Median OS was assessed from product-limit (Kaplan-Meier) method for censored data in participants with microsatellite stable colorectal cancer (CRC); with castration-resistant prostate cancer (CRPC), and with programmed cell death ligand 1 (PD-\[L\]1) refractory non-small cell lung cancer (NSCLC).

Time frame:
Up to approximately 2 years
Reported as:
Median · Months
Overall Survival (OS)
MonthsNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
CRC6.5 (3.0 to 9.7)8.0 (5.7 to 14.4)
CRPC10.8 (7.9 to 13.4)11.2 (3.7 to 23.0)
MSCLC13.0 (3.2 to 18.0)12.0 (2.4 to 19.9)
SecondaryAbsolute Neutrophil Counts (ANC)

Peripheral blood neutrophil counts were performed at Cycle 1 Day 3: Predose, to determine the concentration of ANC.

Time frame:
Day 3: Predose
Reported as:
Mean · 10^9 cells/L
Absolute Neutrophil Counts (ANC)
10^9 cells/LNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Absolute Neutrophil Counts (ANC)3.6 (3.03 to 4.12)3.2 (2.50 to 3.84)
SecondaryNavarixin Area Under the Plasma Concentration-Time Curve (AUC) From Time 0 to Infinity (AUC0-inf)

Plasma samples from participants with selected advanced/metastatic solid tumors were collected to determine the navarixin plasma AUC0-inf

Time frame:
Cycle 1 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose; Cycle 1 Days 3 & 8: Predose & 6-12 hours postdose; Cycle 2 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose (Up to approximately 23 days)
Reported as:
Geometric mean · h*ng/mL
Navarixin Area Under the Plasma Concentration-Time Curve (AUC) From Time 0 to Infinity (AUC0-inf)
h*ng/mLNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Navarixin Area Under the Plasma Concentration-Time Curve (AUC) From Time 0 to Infinity (AUC0-inf)523 ± 39.51200 ± 47.5
SecondaryNavarixin Area Under the Plasma Concentration-Time Curve From Time 0 to Last (AUC0-last)

Plasma samples from participants with selected advanced/metastatic solid tumors were collected to determine the navarixin plasma AUC0-last.

Time frame:
Cycle 1 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose; Cycle 1 Days 3 & 8: Predose & 6-12 hours postdose; Cycle 2 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose(Up to approximately 23 days)
Reported as:
Geometric mean · h*ng/mL
Navarixin Area Under the Plasma Concentration-Time Curve From Time 0 to Last (AUC0-last)
h*ng/mLNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Navarixin Area Under the Plasma Concentration-Time Curve From Time 0 to Last (AUC0-last)451 ± 35.7961 ± 45.9
SecondaryNavarixin Maximum Plasma Concentration (Cmax)

Plasma samples from participants with selected advanced/metastatic solid tumors were collected to determine the navarixin plasma Cmax.

Time frame:
Cycle 1 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose; Cycle 1 Days 3 & 8: Predose & 6-12 hours postdose; Cycle 2 Day 1: Predose & 1, 2, 4, 6 & 8-12 hours postdose (Up to approximately 23 days)
Reported as:
Geometric mean · ng/mL
Navarixin Maximum Plasma Concentration (Cmax)
ng/mLNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Navarixin Maximum Plasma Concentration (Cmax)172 ± 53.3288 ± 60.6
SecondaryNavarixin Trough Plasma Concentration (Ctrough)

Plasma samples from participants with selected advanced/metastatic solid tumors were collected at steady state on Cycle 2 Day 21 to determine navarixin Ctrough. The Arithmetic Mean and CV% are presented.

Time frame:
Cycle 2 Day 21 (Up to approximately 43 days)
Reported as:
Geometric mean · ng/mL
Navarixin Trough Plasma Concentration (Ctrough)
ng/mLNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
Navarixin Trough Plasma Concentration (Ctrough)NA ± NANA ± NA

Adverse events

Collected over All-cause mortality: From randomization up to approximately 27 months; Adverse Events (AEs) from first treatment up to approximately 27 months. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Navarixin 30 mg + Pembrolizumab 200 mg48/52 (92.3%)17/51 (33.3%)48/51 (94.1%)
Navarixin 100 mg + Pembrolizumab 200 mg45/55 (81.8%)15/54 (27.8%)52/54 (96.3%)
Most frequent serious events
Showing 10 of 29
Most frequent serious events
EventNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
PneumoniaInfections and infestations4/511/54
ColitisGastrointestinal disorders1/510/54
Small intestinal obstructionGastrointestinal disorders1/511/54
VomitingGastrointestinal disorders1/511/54
PyrexiaGeneral disorders1/511/54
Lower respiratory tract infectionInfections and infestations1/510/54
Urinary tract infectionInfections and infestations1/511/54
Spinal compression fractureInjury, poisoning and procedural complications1/510/54
Aspartate aminotransferase increasedInvestigations1/510/54
Neutrophil count decreasedInvestigations1/510/54
Most frequent other events
Showing 10 of 41
Most frequent other events
EventNavarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mg
FatigueGeneral disorders17/5114/54
NauseaGastrointestinal disorders9/5116/54
Decreased appetiteMetabolism and nutrition disorders14/518/54
PyrexiaGeneral disorders12/5112/54
CoughRespiratory, thoracic and mediastinal disorders10/518/54
VomitingGastrointestinal disorders5/5110/54
Neutrophil count decreasedInvestigations7/5110/54
Back painMusculoskeletal and connective tissue disorders6/5110/54
Abdominal painGastrointestinal disorders9/515/54
DyspnoeaRespiratory, thoracic and mediastinal disorders9/515/54

Baseline characteristics

Age, Continuous
Age, Continuous(Years)Navarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mgTotal
Mean64.1 ± 13.362.8 ± 13.063.4 ± 13.1
Sex: Female, Male
Sex: Female, Male(Participants)Navarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mgTotal
Female141327
Male374178
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Navarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mgTotal
Hispanic or Latino202
Not Hispanic or Latino4954103
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Navarixin 30 mg + Pembrolizumab 200 mgNavarixin 100 mg + Pembrolizumab 200 mgTotal
American Indian or Alaska Native000
Asian141125
Native Hawaiian or Other Pacific Islander000
Black or African American145
White363975
More than one race000
Unknown or Not Reported000
08

Study locations

14 sites
  • Honor Health ( Site 0005)
    Scottsdale, Arizona 85258, United States
  • Florida Cancer Specialists ( Site 0003)
    Sarasota, Florida 34232, United States
  • University of Maryland ( Site 0008)
    Baltimore, Maryland 21201, United States
  • Henry Ford Health System ( Site 0006)
    Detroit, Michigan 48202, United States
  • Duke University Medical Center ( Site 0004)
    Durham, North Carolina 27710, United States
  • Blacktown Hospital Western Sydney Local Health District ( Site 0024)
    Blacktown, New South Wales 2148, Australia
  • Scientia Clinical Research ( Site 0021)
    Randwick, New South Wales 2031, Australia
  • Peter MacCallum Cancer Centre ( Site 0023)
    Melbourne, Victoria 3000, Australia
  • Princess Margaret Cancer Centre ( Site 0031)
    Toronto, Ontario M5G 2M9, Canada
  • Jewish General Hospital ( Site 0032)
    Montreal, Quebec H3T 1E2, Canada
  • Sourasky Medical Center ( Site 0012)
    Tel Aviv, 6423906, Israel
  • Seoul National University Bundang Hospital ( Site 0043)
    Seongnam-si, Gyeonggi-do 13620, Korea, Republic of
  • Seoul National University Hospital ( Site 0042)
    Seoul, 03080, Korea, Republic of
  • Severance Hospital Yonsei University Health System ( Site 0041)
    Seoul, 03722, Korea, Republic of
09

References and documents

Publications

  • Armstrong AJ, Geva R, Chung HC, Lemech C, Miller WH Jr, Hansen AR, Lee JS, Tsai F, Solomon BJ, Kim TM, Rolfo C, Giranda V, Ren Y, Liu F, Kandala B, Freshwater T, Wang JS. CXCR2 antagonist navarixin in combination with pembrolizumab in select advanced solid tumors: a phase 2 randomized trial. Invest New Drugs. 2024 Feb;42(1):145-159. doi: 10.1007/s10637-023-01410-2. Epub 2024 Feb 7. Erratum In: Invest New Drugs. 2024 Jun;42(3):340-341. doi: 10.1007/s10637-024-01444-0. PubMed 38324085 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

Data sharing details ↗ · engagezone.msd.com

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar 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

Ran from Apr 2018 to primary completion in May 2021, 37 months.

Results were first posted in Jun 2022, 1 year 1 month after primary completion.

Of 317 industry-sponsored phase 2 interventional studies under Carcinoma, Non-Small-Cell Lung, half reached primary completion within 37 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 59. This study's 37 months is close to that.

Counting every sponsor, half of 1,047 studies reached it within 48 months; a quarter within 30 and three quarters within 76.

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

Registered
Mar 8, 2018
First posted
Mar 22, 2018
StartActual
Apr 10, 2018
Primary completionActual
May 19, 2021
CompletionActual
May 19, 2021
Results first posted
Jun 29, 2022
Last update
Aug 28, 2024
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 28, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03473925
Responsible party
Sponsor
First posted
Mar 22, 2018
Start date
Apr 10, 2018
Primary completion
May 19, 2021
Completion
May 19, 2021
Results posted
Jun 29, 2022
Last update
Aug 28, 2024

Study contacts

Medical Director
study director · Merck Sharp & Dohme LLC

Oversight

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

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Studies of the drug tested here: Navarixin

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