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Stage IIIB Non-small Cell Lung CancerPhase 1NCT06525246

Study of ONO-7475 in Combination With Osimertinib in EGFR Gene Mutation-positive Non-small Cell Lung Cancer

A Phase 1 study testing ONO-7475 and Osimertinib Mesylate in people with Stage IIIB Non-small Cell Lung Cancer and Stage IIIC Non-Small Cell Lung Cancer, run by Ono Pharmaceutical Co., Ltd. at 13 sites in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is to evaluate the tolerability and safety of ONO-7475 in combination with osimertinib in the first-line treatment of patients with EGFR-mutated, stage IIIB/IIIC/IV or recurrent non-small cell lung cancer (NSCLC), which is unsuitable for radical irradiation. Read more about this study

Who is it for?
Ages 20 years and older
What is being tested?
ONO-7475 and Osimertinib Mesylate
Could I receive a placebo?
No, everyone receives an active treatment
How many people
78 participants
Where
13 sitesJapan
Study dates
6 Aug 2021to 23 Jun 2025
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with stage IIIB/IIIC/IV or recurrent NSCLC, which is unsuitable for radical irradiation
  • Patients with confirmed EGFR gene exon 19 deletion or EGFR gene exon 21 mutation(L858R)and who are scheduled to receive osimertinib
  • Patient has an ECOG performance status of 0-1

Who cannot join

  • Patients with severe complication
  • Patients with multiple primary cancers

Trial locations and contacts

13 sites in 1 country.

13 sites in 1 country

Japan13 sites
  • Saitama Cancer Center

    Ina, Kitaadati-gun, Saitama

  • Kobe City Medical Center General Hospital

    Kobe, Hyōgo

  • The Cancer Institute Hospital Of JFCR

    Koto-Ku, Tokyo

  • University Hospital Kyoto Prefectural University of Medicine

    Kyoto, Kyoto

  • National Hospital Organization Shikoku Cancer Center

    Matsuyama, Ehime

  • Shizuoka Cancer Center

    Nagaizumi-chō, Sunto-gun, Shizuoka

  • Nigata Cancer Center Hospital

    Niigata, Niigata

  • Hyogo College Of Medicine College Hospital

    Nishinomiya, Hyōgo

  • Osaka International Cancer Institute

    Osaka, Osaka

  • Kitasato University Hospital

    Sagamihara-shi, Kanagawa

  • Tokyo Medical University Hospital

    Shinjuku-Ku, Tokyo

  • Osaka Medical and Pharmaceutical University Hospital

    Takatsuki, Osaka

  • Kanagawa Cancer Center

    Yokohama, Kanagawa

Other trials in Japan

About this study

Official title: ONO-7475-03: ONO-7475 Phase I Study An Open-label, Uncontrolled Study of ONO-7475 in Combination With Osimertinib in EGFR Gene Mutation-positive Non-small Cell Lung Cancer

This study is to evaluate the tolerability and safety of ONO-7475 in combination with osimertinib in the first-line treatment of patients with EGFR-mutated, stage IIIB/IIIC/IV or recurrent non-small cell lung cancer (NSCLC), which is unsuitable for radical irradiation.

Being tested
ONO-7475, Osimertinib Mesylate
Medical subject headings
Carcinoma, Non-Small-Cell Lung

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ONO-7475Drug

    Specified dose, once daily

  • Osimertinib MesylateDrug

    Specified dose, once daily

Study groups in NCT06525246
Study groupRoleWhat they receive
ONO-7475+OsimertinibExperimentalNot described
Receives: Drug: ONO-7475; Drug: Osimertinib Mesylate

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Dose-limiting toxicities(DLT) Dose-limiting toxicities(DLT) Dose-limiting toxicities(DLT)

    Measured: 28 days

  2. Adverse event (AE)

    Measured: Up to 28 days after the last dose

Secondary outcomes (13)
  1. Pharmacokinetics (Cmax)

    Measured: Up to 57 Days

  2. Pharmacokinetics (Tmax)

    Measured: Up to 57 Days

  3. Pharmacokinetics (AUC)

    Measured: Up to 57 Days

  4. Pharmacokinetics (Ctrough)

    Measured: Up to 57 Days

  5. Objective Response Rate (ORR)

    Measured: Through study completion, an average of 2 year

  6. Disease Control Rate (DCR)

    Measured: Through study completion, an average of 2 year

  7. Overall Survival (OS)

    Measured: Through study completion, an average of 3 year

  8. Progression-Free Survival (PFS)

    Measured: Through study completion, an average of 2 year

  9. Duration of Response (DOR)

    Measured: Through study completion, an average of 2 year

  10. Time to Response (TTR)

    Measured: Through study completion, an average of 2 year

  11. Best Overall Response (BOR)

    Measured: Through study completion, an average of 2 year

  12. Percent change in the sum diameters of the target lesions

    Measured: Through study completion, an average of 2 year

  13. Maximum percent change in the sum diameters of the target lesions

    Measured: Through study completion, an average of 2 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jul 2024
  2. Study start6 Aug 2021
  3. Primary completion23 Jun 2025
  4. Study completion23 Jun 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
78 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06525246
Sponsor's protocol ID
ONO-7475-03
Other IDs
jRCT2051210045
Status last verified
Mar 2026
First submitted
24 Jul 2024
Last updated
13 Mar 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ONO-7475 and Osimertinib Mesylate in people with Stage IIIB Non-small Cell Lung Cancer and Stage IIIC Non-Small Cell Lung Cancer, run by Ono Pharmaceutical Co., Ltd. at 13 sites in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Dose-limiting toxicities(DLT) Dose-limiting toxicities(DLT) Dose-limiting toxicities(DLT) (time frame: 28 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Mar 2026.

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