ClinicalTrials.gg
Active, not recruitingNCT06266299Updated Oct 26, 2026

A Study of KK2269 in Adult Participants With Solid Tumors

A Phase 1 interventional study of KK2269 and Docetaxel in Advanced Solid Tumor, Metastatic Solid Tumor and Gastric Adenocarcinoma, sponsored by Kyowa Kirin Co., Ltd.. Active, not recruiting at 32 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-26.

Sponsored by Kyowa Kirin Co., Ltd. · Phase 1, Interventional, and Treatment

Updated Oct 26, 2026Now Active, not recruitingEnrollment updatedGo to Updates ↓

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Phase
Phase 1
Study type
Interventional
Enrollment
83
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-15

Among 154 studies in Neoplasm Metastasis with a site in Japan — 30 open to participants now, 64 under way, 25 of them phase 3. Neoplasm Metastasis · Japan.

Enrollment
106th of 150
83 · median 254
Started
2024
with 12 others
Phase 1
55 of 154
9 open now
Primary completion
2029-03
later than 54 of 63 live
Registered
129th of 154
by date

Among the 154 studies in Neoplasm Metastasis with a site in Japan, this one is the 106th largest by enrollment of the 150 interventional ones that give a count, is one of 13 that started in 2024, is one of 55 in phase 1, reaches primary completion later than 54 of the 63 other live ones, and was the 129th registered.

Neoplasm Metastasis

4,045 studies on the registry are indexed under Neoplasm Metastasis; 888 are open to participants now.

Browse Neoplasm Metastasis studies →

Open to participants now

30 of the 154 studies in Neoplasm Metastasis with a site in Japan are open now. Recruiting first, the newest first:

25 more — sign in →

All 30 open studies →

A study can be open while its sites in Japan have not opened yet or have stopped. Only those recruiting at a site in Japan →

Who these studies take

Of the 689 Neoplasm Metastasis studies recruiting now, 536 (78%) set no upper age limit and 97 (14%) stop at 75 or younger; 48 take children under 18; 18 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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02

Study summary

This is a first-in-human study of KK2269. Part 1 and Part 2 will be conducted as a multicenter, open-label, non-randomized, dose-escalation study. Participants with advanced or metastatic solid tumors for which no standard therapy is available will be enrolled in Part 1. In Part 1, the primary objective is to assess the safety and tolerability of KK2269.

In Part 2, only participants with gastric adenocarcinoma, GEJ adenocarcinoma, esophageal adenocarcinoma, or NSCLC who have experienced at least one systemic therapy will be enrolled. In Part 2, the primary objective is to assess the safety and tolerability of KK2269 in combination with docetaxel and to determine the recommended dose(s) and dose interval(s) of KK2269 in combination with docetaxel for subsequent studies.

In both Part 1 and Part 2, participants who refuse to undergo standard therapy are also eligible.

03

Conditions studied

  • Advanced Solid Tumor
  • Metastatic Solid Tumor
  • Gastric Adenocarcinoma
  • Gastroesophageal Junction Adenocarcinoma
  • Esophageal Adenocarcinoma
  • Non Small Cell Lung Cancer
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

  • Key Common Inclusion Criteria for Parts 1 and 2:

    • Patients who are ≥ 18 years old at the time of
    • Patients who have disease measurable by v1.1
    • Patients with an PS of 0 or 1
    • Patients with a of at least 3 months in the judgement of the investigator or subinvestigator
    • The specified periods have passed respectively after the completion of previous cancer treatments as of the date of enrollment at the time of the first dose of KK2269
    • Patients who agree to use a medically effective method of
  • Key Additional Inclusion Criterion for Part 1:

    •Patients with histological or cytological evidence of at least one locally advanced or non-CNS solid tumor

  • Key Additional Inclusion Criteria for Part 2:

    •Patients with histological or cytological evidence of any of the following disease: Gastric adenocarcinoma, GEJ adenocarcinoma, or esophageal adenocarcinoma, NSCLC (Only patients with NSCLC will be enrolled in the expansion part)

    •Patients who are suitable for docetaxel treatment

  • Key Common Exclusion Criteria for Parts 1 and 2:

    • Patients with an uncontrolled or serious intercurrent illness
    • Patients with known active central nervous system metastasis
    • Patients with a history of ≥ Grade 3 allergic reaction to any antibody drug
    • Patients with a history of disease
    • Patients with a history of , , or at screening
    • Patients who have a history of primary immunodeficiency
  • Key Additional Exclusion Criterion For Part 2:

    • Patients with a history of treatment with docetaxel
Terms in these criteria, in plain language(10)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorized to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

RECIST

The standard rules for measuring tumors 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 tumor 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

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.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

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.

Metastases

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

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

Study arms

  • Experimental
    Part 1

    KK2269 will be administered at each dose level, intravenous infusion.

    Drug: KK2269

  • Experimental
    Part 2

    KK2269 will be administered at each dose level intravenously in combination with docetaxel. Docetaxel will be administered intravenously (Q3W).

    Drug: KK2269 · Drug: Docetaxel

Interventions

  • DrugKK2269

    KK2269 administered intravenously

  • antineoplastic drug administered intravenously

    Also known as: Docetaxel Hydrate

06

What researchers measure

Primary outcomes

  1. Number of Subjects Experiencing Dose-limiting Toxicity

    Time frame: 21 days after first dose

  2. Number of Adverse Events

    Time frame: From signing of ICF through study completion, an average of 1 year

07

Study locations

32 sites
08

References and documents

Individual participant data

Plan to share: Yes — The datasets generated and/or analyzed during the study sponsored by Kyowa Kirin will be available in the Vivli repository, https://vivli.org/ourmember/kyowa-kirin/ as long as conditions of data disclosure specified in the policy section of the Vivli website are satisfied.

Data sharing details ↗ · vivli.org

No publications or documents are linked to this record.

09

Timeline

1 registry update 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 Jan 2024 (actual). Primary completion is estimated for Mar 2029, 62 months after the start.

Of 286 industry-sponsored phase 1 interventional studies under Neoplasm Metastasis, half reached primary completion within 48 months of starting (the median), counting those still running; a quarter within 28 and three quarters within 75. This study's planned 62 months is above that.

Counting every sponsor, half of 496 studies reached it within 54 months; a quarter within 33 and three quarters within 83.

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

Registered
Feb 5, 2024
First posted
Feb 20, 2024
StartActual
Jan 18, 2024
Primary completionEst.
Mar 2029
CompletionEst.
Mar 2029
Last update
Oct 26, 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.
Status
Recruiting→Active, not recruiting
changed Oct 26, 2026
Enrollment
101 (estimated)→83 (actual)
Oct 26, 2026
Show all 1 update
  1. Oct 26, 2026
    Recruiting→Active, not recruiting
    Enrollment 101 (estimated)→83 (actual)
    + 3 other changes: verification date, contact details and site details

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT06266299
Collaborators
Kyowa Kirin, Inc.
Responsible party
Sponsor
First posted
Feb 20, 2024
Start date
Jan 18, 2024
Primary completion
Mar 2029 (estimated)
Completion
Mar 2029 (estimated)
Last update
Oct 26, 2026

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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