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RecruitingNCT06823947Updated Jul 1, 2026

Study of KK3910 in Healthy Volunteers and Patients With Essential Hypertension

A Phase 1 interventional study of Placebo and KK3910 in Healthy Volunteers Essential Hypertension, sponsored by Kyowa Kirin Co., Ltd.. Recruiting at 3 sites in Japan. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-01.

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

From the registry’s dates

  • Started Apr 2025; still recruiting 1 year 7 months later.
Phase
Phase 1
Study type
Interventional
Enrollment
160
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

Part 1 : To evaluate the safety of single-dose KK3910 in healthy volunteers. Part 2 : To evaluate the safety of multiple-dose KK3910 in patients with essential hypertension. Part 3 : To assess the safety profile of repeated dosing of KK3910 in an additional hypertension cohort.

02

Conditions studied

  • Healthy Volunteers Essential Hypertension
03

In context

Essential Hypertension

478 studies on the registry are indexed under Essential Hypertension; 74 are open to participants now.

This study's planned enrollment of 160 is above the median of 144 across 406 interventional studies indexed under Essential Hypertension.

Browse Essential Hypertension studies →

Lead sponsor

Kyowa Kirin Co., Ltd. is the lead sponsor of 159 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Inclusion Criteria: Part 1

  • Voluntary consent to participate in this study must be given (in writing)
  • Japanese healthy adults or non-Asian healthy men 18 to \< 55 years at the time of ( Japanese healthy adults 65 to \< 80 years for the elderly cohort)
  • is within the specified range at screening

Inclusion Criteria: Part 2

  • Voluntary consent to participate in this study must be given (in writing)
  • Japanese patients with essential hypertension, aged 18 to \<65 years at the time of informed consent
  • BMI is within the specified range at screening

Inclusion Criteria: Part 3

  • Voluntary consent to participate in this study must be given (in writing)
  • Japanese patients with essential hypertension, aged 18 to \<80 years at the time of informed consent
  • BMI is within the specified range at screening

Exclusion Criteria: Part 1

  • History of any respiratory disease, heart disease, gastrointestinal disease, renal disease, liver disease, psychiatric disorder, disease, or malignant tumor that may affect assessments in the study, as judged by principal investigator or subinvestigator.
  • History of or current drug allergy
  • History of or current alcoholism or drug addiction
  • Smoking within the specified period
  • infection within the specified period
  • Any condition judged by the investigator or subinvestigator to be unsuitable for participation in the study

Exclusion Criteria: Part 2

  • History of any respiratory disease, heart disease, gastrointestinal disease, renal disease, liver disease, psychiatric disorder, autoimmune disease, or malignant tumor that may affect assessments in the study, as judged by principal investigator or subinvestigator.
  • History or of current drug allergy
  • History of or current alcoholism or drug addiction
  • Pregnant or breastfeeding patients, or patients willing to have a child during the study
  • Smoking within the specified period
  • infection within the specified period
  • Any condition judged by the investigator or subinvestigator to be unsuitable for participation in the study

Exclusion Criteria: Part 3

  • History of any respiratory disease, heart disease, gastrointestinal disease, renal disease, liver disease, psychiatric disorder, autoimmune disease, or malignant tumor that may affect assessments in the study, as judged by principal investigator or subinvestigator.
  • History or of current drug allergy
  • History of or current alcoholism or drug addiction
  • Pregnant or breastfeeding patients, or patients willing to have a child during the study
  • Smoking within the specified period
  • infection within the specified period
  • Any condition judged by the investigator or subinvestigator to be unsuitable for participation in the study
Terms in these criteria, in plain language(3)

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 authorised 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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

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.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
160 participants (estimated)

Study arms

  • Placebo comparator
    Placebo

    Drug: Placebo

  • Experimental
    KK3910

    Drug: KK3910

Interventions

  • DrugPlacebo

    Placebo is administered single dose or multiple dose by SC injection.

  • DrugKK3910

    KK3910 is administered single dose or multiple dose by SC injection.

06

What researchers measure

Primary outcomes

  1. Number of participants with adverse events (AEs)

    For adverse events that occurred after administration of the investigational drug, number of subjects with AEs and occurrence frequency are evaluated.

    Time frame: Part 1 : Day 1 to Day 85, Part 2: Day 1 to Day 155, Part 3: Day 1 to Day 155

Secondary outcomes

  1. Time to the maximum concentration

    Time frame: Part 1 : Day 1 to Day 85, Part 2 : Day 1 to Day 155, Part 3: Day 1 to Day 155

  2. The maximum concentration

    Time frame: Part 1 : Day 1 to Day 85, Part 2 : Day 1 to Day 155, Part 3: Day 1 to Day 155

  3. Area under the concentration-Time curve

    Time frame: Part 1 : Day 1 to Day 85, Part 2 : Day 1 to Day 155, Part 3: Day 1 to Day 155

07

Study locations

1 of 3 sites recruiting
08

References and documents

Individual participant data

Plan to share: Yes — There is a plan to make IPD and related data dictionaries available. 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

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06823947
Responsible party
Sponsor
First posted
Feb 12, 2025
Start date
Apr 3, 2025
Primary completion
Dec 2027 (estimated)
Completion
Dec 2027 (estimated)
Last update
Jul 1, 2026

Study contacts

Kyowa Kirin Co., Ltd.
Contact
clinical.info.jp@kyowakirin.com
+81-3-5205-7200
Tatsuhiko Makine
study chair · Kyowa Kirin Co., Ltd.

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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