ClinicalTrials.gg
RecruitingNCT06353997Updated Sep 16, 2026

Neoadjuvant INBRX-106 in Combination With Pembrolizumab for Stage II/III TNBC Patients

A Phase 2 interventional study of Pembrolizumab and INBRX-106 in Triple Negative Breast Cancer, sponsored by Providence Health & Services. Recruiting at 3 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-16.

Sponsored by Providence Health & Services · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Sep 2024; still recruiting 2 years 2 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
12
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This is a Phase II trial to assess efficacy and feasibility of pembrolizumab + INBRX-106 as an induction therapy preceding neoadjuvant therapy.

Read the detailed description

A Simon 2-stage design is implemented to minimize exposure if the treatment regimen is not feasible or if no response. If feasibility is established with responses exceeding futility parameters, study will expand to stage 2. Additional arms may be introduced in a protocol amendment.

Below shows the sample size required using Simon's 2-stage design, 80% power and 5% one-sided significance level:

  • Null hypothesis: \<5% week 6 US response
  • Alternative hypothesis: >35% week 6 US response
  • Stage I n (r*): 6 (0)
  • Stage I + II total n (r): 12 (2)
  • Criteria: Minimax
  • Minimum responses to proceed to stage II: 1

Note: r* and r represents the threshold for declaring futility, i.e. greater than r* or r responses would be required to consider ongoing investigation.

The null hypothesis of 5% is based upon the assumption that virtually no subjects would experience volumetric reduction if the therapy was not effective. The alternative hypothesis of 35% is based upon the assumption that responses in the absence of chemotherapy in approximately one-third of subjects would be clinically meaningful, encouraging further development of the treatment paradigm.

If no responses are observed, a second feasibility run-in may be considered using a biomarker enrichment strategy (such as with the 27-gene IO score).

The arm will be terminated from further development if an unacceptable proportion of patients experience rapid clinical/radiographic progression (defined as progression of disease, or clinical evidence of progression), or other toxicities that interfere with curative-intent therapy, defined as >1/6 evaluable subjects in stage I or >2/12 in stage II, evaluated for each arm. This is a Pocock-type stopping boundary that yields the probability of cross the boundary at most 23% when the rate of dose-limiting toxicity is equal to 10%.

02

Conditions studied

  • Triple Negative Breast Cancer
03

In context

Triple Negative Breast Neoplasms

1,219 studies on the registry are indexed under Triple Negative Breast Neoplasms; 446 are open to participants now.

This study's planned enrollment of 12 is below the median of 60 across 1,053 interventional studies indexed under Triple Negative Breast Neoplasms.

Browse Triple Negative Breast Neoplasms studies →

Lead sponsor

Providence Health & Services is the lead sponsor of 84 studies on the registry; 6 are open to participants now.

Of its 10 completed or terminated interventional studies of FDA-regulated products, 8 (80%) 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. Age ≥ 18 years, inclusive of all genders.
  2. Have an (ECOG) performance status (PS) of 0 or 2.
  3. Patients must have confirmed TNBC (ER/PR ≤ 10% allowed, - as defined by ASCO guidelines). HER2 negative permitted to enroll as IHC 0, 1, or 2+ with negative ISH.
  4. Primary breast tumor measurable by ultrasound and at least 1cm.
  5. Clinically appropriate to receive pembrolizumab plus chemotherapy (e.g. Keynote-522) planned for curative intent per standard of care (as indicated following study therapy however not mandated on trial for Option 2).
  6. Multifocal/multicentric disease is allowed. If clinically indicated per the standard of care, suspicious sites that do not appear to be part of the same disease process should be biopsied with reconfirmation of ER/PR/HER2 status. Up to 20 slides or 1 block may be submitted to conduct biomarkers studies on remaining tissue.
  7. No prior therapy of any kind for TNBC.
  8. Willingness to undergo serial ultrasounds, serial , and blood draws.
  9. Patients must have adequate organ function as defined below. Specimens must be collected within 28 days prior to the start of study treatment.

    • (ANC) ≥1500/µL
    • ≥100 000/µL
    • ≥8.0 g/dL or ≥5.0 mmol/L
    • Creatinine OR measured or calculated ( can also be used in place of creatinine or CrCl) ≤1.5 × OR ≥30 mL/min for participant with creatinine levels >1.5 × institutional ULN
    • Total ≤1.5 × ULN OR direct bilirubin ≤ULN for participants with total bilirubin levels >1.5 × ULN. Patients with elevated LFTs that are suggestive of Gilbert's disease (a benign process) are eligible.
    • (SGOT) and ALT (SGPT) ≤2.5 × ULN
    • (INR) OR prothrombin time (PT) Activated partial thromboplastin time (aPTT) ≤1.5 × ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants
    • TSH and free T4 levels: Patients must have adequate thyroid function as demonstrated by free T4 values, regardless of TSH.
  10. Fertile male patients and female patients of must agree to avoid impregnating a partner or becoming pregnant, respectively. They must be willing to employ highly effective methods (with a failure rate of less than 1% when used consistently and correctly) at least 28 days before the first dose of study treatment until 4 months after the last dose of study treatment.

    A woman is considered of childbearing potential following menarche and until becoming unless permanently sterile. Permanent sterilization methods include hysterectomy, bilateral salpingectomy, and bilateral oophorectomy. Postmenopausal state is defined as no menses for 12 months without an alternative medical cause.

    Acceptable methods of contraception presented below are in compliance with the Clinical Trial Facilitation and Coordination Group (CTFG) recommendations related to contraception and pregnancy testing in clinical trials, Version 1.1 (September, 2020). However, if a contraception method listed below is restricted by local regulations/guidelines, then it does not qualify as an acceptable method of contraception in that country/region. Local guidelines should be followed.

    • Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation: Oral. Intravaginal. Transdermal.
    • Progestogen-only hormonal contraception associated with inhibition of ovulation: Oral. Injectable. Implantable.
    • Intrauterine device (IUD).
    • Intrauterine hormone-releasing system (IUS).
    • Bilateral tubal occlusion.
    • Vasectomized partner. (Only considered to be highly effective contraception if he is the sole sexual partner of the female patient of childbearing potential and if the vasectomized partner has received medical assessment of the surgical success.)
    • Sexual abstinence. (Only considered to be highly effective contraception if defined as refraining from heterosexual intercourse during the entire period of risk associated with the study treatments. The reliability of sexual abstinence needs to be evaluated in relation to the duration of the clinical study and the preferred and usual lifestyle of the patient and if considered acceptable by local regulatory agencies and IRBs/IECs.
  11. WOCBP must have a negative urinary or serum pregnancy test within 72 hours prior to start of treatment. If screening serum pregnancy test collected outside of 72 hours prior to start of treatment, this may be accepted for determination of eligibility but must be re-checked prior to treatment C1D1. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required. The following age-specific requirements apply:

    Women \< 50 years of age are considered post-menopausal if they have been amenorrhoeic for 12 months or more following cessation of exogenous hormonal treatments and if they have luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy or hysterectomy).

    Women ≥ 50 years of age are considered post-menopausal if they have been amenorrhoeic for 12 months or more following cessation of all exogenous hormonal treatments, had radiation-induced menopause with last menses >1 year ago, had chemotherapy-induced menopause with last menses >1 year ago, or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy or hysterectomy).

  12. To be eligible by H\&E, the tumor must have a stromal tumor infiltrating lymphocytes (sTILs) score of at least 1% on diagnostic biopsy as defined by the International TILs Working Group (https://www.tilsinbreastcancer.org/), ascertained by local pathologist or study pathologist.

Exclusion criteria

Exclusion Criteria:

  1. Bilateral breast cancer.
  2. Prior that require ongoing active therapy or are at risk of systemic recurrence in the opinion of the investigator.
  3. Suspicion for, or confirmed, disease.
  4. Primary tumor with potential for skin ulceration or invasion of the chest wall, or with pain that would suggest rapid progression or imminent muscle/skin involvement in the opinion of the enrolling investigator.
  5. Prior therapy with an , anti-PD-L1, or antiPDL2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (e.g., CTLA-4, OX40, CD137). Patients who have received these agents more than 3 years prior for other malignancies may be considered if they are not still at clinically significant risk of systemic recurrence in the opinion of the investigator.
  6. Known allergy or to any of the study drugs or any of the study drug .
  7. Diagnosis of immunodeficiency or is receiving chronic systemic therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of therapy within 7 days prior to the first dose of study drug.
  8. Received a within 30 days prior to the first dose of study drug. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guérin (BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (e.g., FluMist®) are live attenuated vaccines and are not allowed.

    Additionally, COVID-19 vaccinations (including boosters) should not be scheduled within 72 hours (before or after) of dosing days for INBRX-106 and pembrolizumab.

  9. Participants with a condition requiring systemic treatment with either corticosteroids (> 10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days of study drug administration. Inhaled or topical steroids and adrenal replacement doses > 10 mg daily prednisone equivalents are permitted in the absence of active disease.
  10. Known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial.
  11. Pregnant or breastfeeding.
  12. History of (non-infectious) pneumonitis that required steroids or has current pneumonitis.
  13. History of allogenic tissue/solid organ transplantation.
  14. Has active autoimmune disease that has required systemic treatment in excess of prednisone 10mg daily or equivalent in the past 2 years (i.e., with use of disease modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment. Has a known additional malignancy (other than their current breast cancer diagnosis) that is progressing or has required active systemic treatment within the past 3 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.

  15. History or current evidence of any condition, therapy, or clinically significant laboratory abnormality that might confound the results of the study, interfere with the subject's participation for the full duration of the study, or is not in the best interest of the subject to participate, in the opinion of the treating investigator.
  16. Active infection requiring systemic therapy with the exception of UTI requiring oral antibiotic therapy and prophylactic anti-viral therapy (e.g. Acyclovir).
  17. Known history of (HIV) infection.
  18. Known history of (defined as Hepatitis B surface antigen [HBsAg] reactive) or known active virus (defined as HCV RNA [qualitative] is detected) infection. Patients with naturally acquired immunity are allowed (i.e. HBsAg(-); HBcAb(+); HBsAb(+/-).
  19. Any known history of active TB (Bacillus Tuberculosis).
Terms in these criteria, in plain language(30)

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.

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.

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.

HER2

HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.

In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

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.

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).

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.

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.

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.

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.

Postmenopausal

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

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.

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.

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.

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.

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.

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.

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.

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.

05

Study design

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

Study arms

  • Experimental
    Pembrolizumab + INBRX-106

    Patients will be given pembrolizumab at a dose of 200mg IV in combination with INBRX-106 at a dose of 0.1mg/kg IV every 3 weeks.

    Drug: Pembrolizumab · Drug: INBRX-106

Interventions

  • Drug will be delivered per standard-of-care as established by trial Keynote-522.

    Also known as: KEYTRUDA

  • INBRX-106 is a hexavalent, recombinant humanized IgG1, OX40 agonist antibody that targets the human OX40 receptor (TNFRSF4, UniProtKB: P43489). INBRX-106 is based on a sdAb platform and, in detail, 3 identical humanized camelid heavy chain-only antibody binding domains (VHHs) targeting OX40 are joined end-to-end and with an Fc based on human IgG1 to create a molecule that homo-dimerizes into an antibody targeting a total of 6 OX40 receptors.

06

What researchers measure

Primary outcomes

  1. Volumetric Response

    Patients achieving (\>30%) reduction in ultrasound estimate of breast mass volume (mL) at the end of 2 cycles investigational therapy

    Time frame: At the end of Cycle 2 (each cycle is 21 days)

Secondary outcomes

  1. Pathological response (following extended INBRX-106 + pembrolizumab)

    Patients achieving pathological response after completion of study therapy followed by additional neoadjuvant therapy per treating physician discretion, ascertained at the time of definitive surgery.

    Time frame: 30 days from last dose of study treatment

  2. Pathological response (post-chemotherapy)

    Number of patients achieving pathological response following extended anti-OX40 + pembrolizumab if continued beyond 2 cycles (option 2).

    Time frame: 30 days from last dose of study treatment

  3. IO-path response assessed prior to Cycle 2

    On study biopsy conducted prior to Cycle 2: * IO-path-NE (not evaluable): no tumor or evidence of treatment effect. * IO-path-NR (no response): tumor present, no appreciable treatment effect, no sTILs/iTILs expansion by at least 10% absolute increase from baseline. * IO-path-PR (partial response): tumor present, +treatment effect and/or sTILs/iTILs expansion by at least 10% absolute increase from baseline. * IO-path-CR (complete response): no viable tumor, + treatment effect.

    Time frame: Day 21

  4. Event free survival

    Date of dose 1 until evidence of cancer recurrence or death. Those alive without recurrence are censored at 5 years after the last dose of study drug.

    Time frame: Up to 2 years

  5. Overall survival

    Date of dose 1 to death. Those who are alive are censored at 5 years after the last dose of study drug.

    Time frame: Up to 2 years

  6. Toxicity profile

    All AEs attributed to study therapy per CTCAE v5.0

    Time frame: 30 days from last dose of study treatment

07

Study locations

3 of 3 sites recruiting
  • Ellison Institute of Technology (EITM)
    Los Angeles, California 90064, United States
    Recruiting
    • Reva Basho, MD · Contact310-272-7640
  • Providence Portland Cancer Institute - Franz Clinic
    Portland, Oregon 97213, United States
    Recruiting
    • Nicole Moxon, RN · Contactcanrsrchstudies@providence.org · 503-215-1979
    • Alison Conlin, MD · Sub investigator
    • Evelyn Brosnan, MD · Sub investigator
    • Evie Hobbs, MD · Sub investigator
    • Rui Li, MD, PhD · Sub investigator
    • Sasha Stanton, MD, PhD · Sub investigator
    • Zheng Topp, MD · Sub investigator
    • Amy Hartman, NP · Sub investigator
    • Kathleen Dronkowski, NP · Sub investigator
    • Kimberlie Dame, NP · Sub investigator
    • Molly Davis, NP · Sub investigator
    • RaYoung Chung, NP · Sub investigator
    • Roxanne Griswold, NP · Sub investigator
  • Providence St. Vincent Medical Center
    Portland, Oregon 97225, United States
    Recruiting
08

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

Started Sep 2024 (actual). Primary completion is estimated for Jun 2027, 33 months after the start.

Of 220 non-industry phase 2 interventional studies under Triple Negative Breast Neoplasms, half reached primary completion within 60 months of starting (the median), counting those still running; a quarter within 38 and three quarters within 99. This study's planned 33 months is below that.

Counting every sponsor, half of 255 studies reached it within 59 months; a quarter within 37 and three quarters within 94.

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

Registered
Mar 26, 2024
First posted
Apr 9, 2024
StartActual
Sep 5, 2024
Primary completionEst.
Jun 2027
CompletionEst.
Jun 2029
Last update
Sep 16, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 16, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06353997
Lead sponsor
Providence Health & Services
Collaborators
Inhibrx Biosciences, Inc
Responsible party
Sponsor
First posted
Apr 9, 2024
Start date
Sep 5, 2024
Primary completion
Jun 2027 (estimated)
Completion
Jun 2029 (estimated)
Last update
Sep 16, 2026

Study contacts

Nicole Moxon, RN
Contact
canrsrchstudies@providence.org
503-215-1979
David Page, MD
principal investigator · Providence Health & Services

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: Ordastobart

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