ClinicalTrials.gg
CompletedNCT04200963Updated Mar 15, 2024

A Phase 1a/b Study of IK-175 as a Single Agent and in Combination With Nivolumab in Patients With Locally Advanced or Metastatic Solid Tumors and Urothelial Carcinoma

A Phase 1 interventional study of IK-175 and IK-175 and nivolumab in Urothelial Carcinoma, Urothelial Carcinoma Bladder and Bladder Cancer, sponsored by Ikena Oncology. Completed at 10 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-03-15.

Sponsored by Ikena Oncology · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Jul 2023, 3 years 3 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
78
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study will be conducted in adult subjects diagnosed with any form of an advanced or metastatic solid tumors including urothelial carcinoma for which standard therapy is no longer effective or is intolerable. This is a phase 1, multi-center, open label study designed to assess safety and tolerability of IK-175 as a single agent and in combination with nivolumab, to determine the recommended phase 2 dose (RP2D). Disease response, pharmacokinetics (PK), pharmacodynamics, and response biomarkers will also be assessed.

02

Conditions studied

  • Urothelial Carcinoma
  • Urothelial Carcinoma Bladder
  • Bladder Cancer
  • Bladder Disease
  • Solid Tumor
  • Solid Carcinoma
  • Solid Tumor, Adult
  • Metastatic Cancer
  • Advanced Solid Tumor
  • Advanced Cancer
  • Metastatic Bladder Cancer
  • Metastatic Urothelial Carcinoma
  • Locally Advanced Solid Tumor
  • Neoplasms
  • Neoplasm Metastasis
  • Neoplasm Malignant
  • Neoplasm, Bladder
  • Urothelial Neoplasm
  • Neoplasm, Urinary Bladder
  • Bladder Neoplasm
  • Bladder Urothelial Carcinoma

Keywords

  • IK-175
  • KYN-175
  • Immunoncology
  • Aryl Hydrocarbon Receptor Inhibitor
  • AHRi
  • Aryl Hydrocarbon Receptor Antagonist
  • Antagonist
  • Inhibitor
  • anti-PD1
  • nivolumab
  • checkpoint inhibitor
  • CPI
  • aPDI
03

In context

Carcinoma, Transitional Cell

633 studies on the registry are indexed under Carcinoma, Transitional Cell; 181 are open to participants now.

This study's enrollment of 78 is above the median of 50 across 500 interventional studies indexed under Carcinoma, Transitional Cell.

Browse Carcinoma, Transitional Cell studies →

Lead sponsor

Ikena Oncology is the lead sponsor of 6 studies on the registry; none are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) 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

  1. Adult patients ≥18 years of age.
  2. Patients with confirmed solid tumors (including urothelial carcinoma) who have locally recurrent or disease that has progressed on or following all standard of care therapies or who is not a candidate for standard treatment.
  3. For patients with urothelial carcinoma to be enrolled in the Combination Treatment arm, patients must have confirmation of urothelial carcinoma and have unresectable locally recurrent or metastatic disease that has progressed on or following all standard of care therapies, or who is not a candidate for standard treatment. therapy with anti-PD-1 or anti-PD-L1 does not necessarily need to directly precede the study, but patients must have progressed on or within 3 months of receiving the last infusion/dose anti-PD-(L)1 therapy for inclusion in the Combination Treatment arm only.
  4. Have .
  5. Accessible tumor that can be safely accessed for multiple core and patient is willing to provide tissue from newly obtain biopsies before and during treatment.
  6. (ECOG) performance status of 0 to 1.
  7. Adequate organ function.
  8. Highly effective .
  9. Time since the last dose of prior therapy to treat underlying (including other therapy): 9a. Systemic cytotoxic chemotherapy: ≥ the duration of the most recent cycle of the previous regimen (with a minimum of 2 weeks for all, except 6 weeks for systemic nitrosourea or systemic mitomycin-C). 9b. Biologic therapy (eg, antibodies): ≥ 3 weeks or their dosing interval if shorter than 3 weeks (e.g. q2w therapy would require a 2-week washout). 9c. Small molecule therapies: ≥ 5 × half-life. 9d. Investigational Agent: ≥4 weeks or ≥5 × half-life, whichever is shorter

Exclusion criteria

Exclusion Criteria:

  1. Untreated symptomatic central nervous system (CNS) tumors or . Patients are eligible if CNS metastases are asymptomatic and do not require immediate treatment or have been treated and patients have neurologically returned to baseline (residual signs or symptoms related to the CNS treatment are permitted). In addition, patients must have been either off , or on a stable or decreasing dose of ≤10 mg daily prednisone (or equivalent) for at least 2 weeks prior to entering the Treatment period (Day 1).
  2. Patients who have not recovered to ≤ Grade 1 or baseline from all adverse events (AEs) due to previous therapies
  3. Has an active disease that has required systemic treatment in past 2 years with the use of disease-modifying agents, corticosteroids, or drugs; nonsteroidal anti-inflammatory drugs (NSAIDs) are permitted. Patients with type 1 diabetes mellitus, hypothyroidism only requiring hormone replacement, skin disorders (such as vitiligo, psoriasis, or alopecia) not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger are permitted to enroll.
  4. Any condition requiring continuous systemic treatment with either corticosteroids (>10mg daily prednisone equivalents) or other immunosuppressive medications within 2 weeks prior to first dose of study treatment (Inhaled or topical steroids and physiological replacement doses of up to 10 mg daily prednisone equivalent are permitted in the absence of active [ie, severe] autoimmune disease.).
  5. Any other concurrent antineoplastic treatment or agent except for allowed local radiation of lesions for palliation and hormone ablation.
  6. Uncontrolled or life-threatening symptomatic concomitant disease (including known symptomatic (HIV) positive with an AIDS defining opportunistic infection within the last year, or a current \<350 cells/uL, symptomatic active or C checked at screening, or active tuberculosis). Patients with HIV are eligible if: 6a. they have received antiretroviral therapy (ART) for at least 4 weeks prior to entering the Treatment period as clinical indicated while enrolled on study; 6b. they continue on ART as clinically indicated while enrolled on study; 6c. CD4 counts and viral load are monitored per standard of care by a local health care provider.
  7. Patients that have undergone a major surgery within 3 weeks of starting trial treatment or has inadequate healing or recovery from complications of surgery prior to starting trial treatment.
  8. Prior radiotherapy within 2 weeks of start of study treatment. Subjects must have recovered from all radiation-related toxicities, not require corticosteroids, and not have had severe radiation pneumonitis. A 1-week is permitted for palliative radiation [≤ 2 weeks of radiotherapy] to non-CNS disease.
  9. Prior AHR inhibitor treatment without Sponsor permission.
  10. Potentially life-threatening second requiring systemic treatment within the last 3 years or which would impede evaluation of treatment response. Hormone ablation therapy is allowed within the last 3 years. Patients with history of prior early stage basal/squamous cell skin cancer or non-invasive or in situ cancers that have undergone definitive treatment at any time are eligible.
  11. Recent or current significant cardiovascular disease (e.g. stroke, heart attack, heart failure, or arrhythmia).
  12. Medical issue that limits oral ingestion or impairment of gastrointestinal function that is expected to significantly reduce the absorption of IK-175.
  13. Clinically significant (ie, active) cardiovascular disease: cerebral vascular accident/stroke (\<6 months prior to enrollment), myocardial infarction (\<6 months prior to enrollment), unstable angina, congestive heart failure (≥ Classification Class II), or the presence of any condition that can increase proarrhythmic risk (eg, hypokalemia, bradycardia, heart block) including any new, unstable, or serious cardiac arrhythmia requiring medication, or other baseline arrhythmia that might interfere with interpretation of ECGs on study (eg, bundle branch block). Patients with >450 msec for males and >470 msec for females on screening are excluded. Any patients with a bundle branch block will be excluded with QTcF >450 msec. Males who are on stable doses of concomitant medication with known prolongation of QTcF (eg, Selective Serotonin Reuptake Inhibitor Antidepressants) will only be excluded for QTcF >470 msec.
  14. History of life-threatening toxicity related to prior immune therapy (eg. or anti-PD-1/PD-L1 treatment or any other antibody or drug specifically targeting T-cell co-stimulation or immune checkpoint pathways) except those that are unlikely to re-occur with standard countermeasures (eg. hormone replacement after adrenal crisis).
  15. Has an active infection requiring systemic therapy.
  16. Treatment with any live/attenuated vaccine within 30 days of first study treatment.
  17. A woman of (WOCBP) who has a positive pregnancy test or is breastfeeding prior to treatment.
Terms in these criteria, in plain language(21)

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.

Metastases

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

CD4 count

The number of CD4 cells, a type of white blood cell, in a given amount of blood. It is used to follow how well the immune system is doing in HIV.

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.

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.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

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.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
78 participants (actual)

Study arms

  • Experimental
    IK-175 Single Agent Dose Escalation

    Approximately 5 dose escalation steps are planned during the Single Agent Treatment dose escalation phase of the study. (COMPLETE)

    Drug: IK-175

  • Experimental
    IK-175 Single Agent Dose Expansion

    A Single Agent Treatment dose expansion phase will be performed in patients with urothelial carcinoma with IK-175 after completion of the dose escalation to confirm the RP2D. (COMPLETE)

    Drug: IK-175

  • Experimental
    IK-175 and nivolumab Combination Dose Escalation

    Approximately 2 dose escalation steps are planned during the Combination Treatment dose escalation phase of the study. (COMPLETE)

    Drug: IK-175 and nivolumab

  • Experimental
    IK-175 and nivolumab Combination Dose Expansion

    A Combination Treatment dose expansion phase will be performed in patients with urothelial carcinoma with IK-175 after completion of the dose escalation to confirm the RP2D. (COMPLETE)

    Drug: IK-175 and nivolumab

Interventions

  • DrugIK-175

    Subjects will be administered IK-175 PO daily for every 21-day treatment cycle during the Single Agent Treatment dose escalation or for every 28-day treatment cycle during the Single Agent dose expansion.

    Also known as: KYN-175

  • DrugIK-175 and nivolumab

    Drug page: Nivolumab

    Subjects will be administered IK-175 PO daily and administered a single dose of nivolumab IV on Day 1 for every 28-day treatment cycle during the Combination Treatment dose escalation and expansion.

    Also known as: KYN-175 and nivolumab

06

What researchers measure

Primary outcomes

  1. To determine the Maximum Tolerated Dose (MTD) or Maximum Administered Dose (MAD), and to characterize the dose-limiting toxicities (DLTs) of IK-175 as a single agent and in combination with nivolumab.

    Proportion of adverse events (AEs) meeting protocol-defined DLT criteria

    Time frame: Approximately 6 months

  2. Safety and tolerability of IK-175 as a single agent and in combination with nivolumab including acute and chronic toxicities, in determining a recommended phase 2 dose (RP2D) of IK- 175.

    Frequency of AEs overall, by grade, relationship to study treatment, time-of-onset, duration of the event, duration of resolution, and concomitant medications administered.

    Time frame: Up to 100 days after the end of study treatment.

Secondary outcomes

  1. Pharmacokinetics of IK-175: half-life (t1/2)

    Determine IK-175 half-life (t1/2).

    Time frame: Days 1 and 2 of first 2 cycles (every 21 days), followed by Day 1 of every even cycle beginning with cycle 4 (every 42 days) through end of treatment (average of 4 months)

  2. Pharmacokinetics of IK-175: Maximum Serum Concentration (Cmax)

    Determine IK-175 Cmax

    Time frame: Days 1 and 2 of first 2 cycles (every 21 days), followed by Day 1 of every even cycle beginning with cycle 4 (every 42 days) through end of treatment (average of 4 months)

  3. Pharmacokinetics of IK-175: Area Under the Curve (AUC)

    Determine IK-175 AUC

    Time frame: Days 1 and 2 of first 2 cycles (every 21 days), followed by Day 1 of every even cycle beginning with cycle 4 (every 42 days) through end of treatment (average of 4 months)

  4. Objective response rate (ORR) of IK-175 as a single agent and in combination with nivolumab

    Preliminary antitumor activity per RECIST 1.1 and assessment per immune Response Evaluation Criteria Solid Tumors (iRECIST) for subjects with urothelial carcinoma.

    Time frame: 12 months

  5. Progression-free survival (PFS) of IK-175 as a single agent and in combination with nivolumab

    Preliminary antitumor activity per RECIST 1.1and assessment per immune Response Evaluation Criteria Solid Tumors (iRECIST) for subjects with urothelial carcinoma.

    Time frame: 12 months

  6. Duration of treatment (DOT) of IK-175 as a single agent and in combination with nivolumab

    Preliminary antitumor activity per RECIST 1.1 and assessment per immune Response Evaluation Criteria Solid Tumors (iRECIST) for subjects with urothelial carcinoma.

    Time frame: 12 months

  7. Duration of response (DOR) of IK-175 as a single agent and in combination with nivolumab

    Preliminary antitumor activity per RECIST 1.1 and assessment per immune Response Evaluation Criteria Solid Tumors (iRECIST) for subjects with urothelial carcinoma.

    Time frame: 12 months

  8. Disease control rate (DCR) of IK-175 as a single agent and in combination with nivolumab

    Preliminary antitumor activity per RECIST 1.1 and assessment per immune Response Evaluation Criteria Solid Tumors (iRECIST) for subjects with urothelial carcinoma.

    Time frame: 12 months

  9. Pharmacodynamic immune effects of IK-175 as a single agent and in combination with nivolumab on tumor-infiltrating cytotoxic T cells

    Characterization of tumor-infiltrating cytotoxic T cells in tumor biopsies collected before and during IK-175 treatment

    Time frame: Prior to Cycle 1 Day 1, and anytime between the end of Cycle 1 and end of Cycle 2. Each cycle is 21 days.

07

Study locations

10 sites
  • Banner Health- MD Anderson Cancer Center
    Gilbert, Arizona 85234, United States
  • Florida Cancer Specialists - Sarasota
    Sarasota, Florida 85234, United States
  • Rush University Medical Center
    Chicago, Illinois 60612, United States
  • Johns Hopkins Kimmel Cancer Center
    Baltimore, Maryland 21287, United States
  • START Midwest
    Grand Rapids, Michigan 49546, United States
  • Memorial Sloan Kettering Cancer Center
    New York, New York 10065, United States
  • Sydney Kimmel Cancer Center Thomas Jefferson University
    Philadelphia, Pennsylvania 19107, United States
  • UPMC Hillman Cancer Center
    Pittsburgh, Pennsylvania 15232, United States
  • The Sarah Cannon Research Institute
    Nashville, Tennessee 37203, United States
  • MD Anderson Cancer Center
    Houston, Texas 77030, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet 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 Dec 2019 to primary completion in Jul 2023, 43 months.

Of 62 industry-sponsored phase 1 interventional studies under Carcinoma, Transitional Cell, half reached primary completion within 44 months of starting (the median), counting those still running; a quarter within 34 and three quarters within 57. This study's 43 months is close to that.

Counting every sponsor, half of 99 studies reached it within 44 months; a quarter within 31 and three quarters within 63.

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

Registered
Dec 11, 2019
First posted
Dec 16, 2019
StartActual
Dec 18, 2019
Primary completionActual
Jul 18, 2023
CompletionActual
Jul 18, 2023
Last update
Mar 15, 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 Mar 15, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04200963
Lead sponsor
Ikena Oncology
Responsible party
Sponsor
First posted
Dec 16, 2019
Start date
Dec 18, 2019
Primary completion
Jul 18, 2023
Completion
Jul 18, 2023
Last update
Mar 15, 2024

Study contacts

Karim Malek, MD
study director · Ikena Oncology

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: Nivolumab

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