NCT04182373

Brief Summary

The purpose of this study is to evaluate the efficacy of intravenous KW-3357 in patients with early-onset severe preeclampsia by comparing the prolongation days of pregnancy with that of placebo.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
181

participants targeted

Target at P25-P50 for phase_3

Timeline
Completed

Started Nov 2019

Typical duration for phase_3

Geographic Reach
1 country

63 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 10, 2019

Completed
1 month until next milestone

Study Start

First participant enrolled

November 19, 2019

Completed
13 days until next milestone

First Posted

Study publicly available on registry

December 2, 2019

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 17, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 16, 2023

Completed
Last Updated

November 15, 2023

Status Verified

November 1, 2023

Enrollment Period

3.5 years

First QC Date

October 10, 2019

Last Update Submit

November 13, 2023

Conditions

Keywords

PreeclampsiaAntithrombin

Outcome Measures

Primary Outcomes (1)

  • Days of maintaining pregnancy

    Subjects will be observed until maternal and/or fetal indications for delivery necessitate cessation of expectant management or until approximately 34 0/7 weeks of gestation.

Secondary Outcomes (22)

  • Presence or absence of achievement of 32 weeks of gestation

    28 days before the end of study

  • Presence or absence of achievement of 34 weeks of gestation

    28 days before the end of study

  • Presence or absence of achievement of 28 weeks of gestation in subjects enrolled in the period of less than 28 weeks of gestation

    28 days before the end of study

  • Change in AT activity

    From baseline to Day 8 at all time points and 3 days after termination of pregnancy

  • Change in PLT concentration

    From baseline to Day 8 at all time points and 3 days after termination of pregnancy

  • +17 more secondary outcomes

Other Outcomes (17)

  • Change in TNF-alpha at the time of examination

    From baseline to Day 8

  • Change in interleukin (IL)-6 at the time of examination

    From baseline to Day 8

  • Change in IL-10 at the time of examination

    From baseline to Day 8

  • +14 more other outcomes

Study Arms (2)

KW-3357

EXPERIMENTAL

72 IU/kg

Drug: Antithrombin gamma

placebo

PLACEBO COMPARATOR
Drug: physiological saline

Interventions

Intravenous infusion, once a day, 7 days

KW-3357

Intravenous infusion, once a day, 7 days

placebo

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients who gave written consent to participate in the clinical trial by their own free will.
  • Patients aged 18 years or older at the time of obtaining informed consent
  • Patients with early-onset PE\* 24 weeks 0 days to 31 weeks 6 days of gestation at the time of enrollment
  • \*: Determine the definition of gestational age based on the ""Guidelines for Obstetrics and Gynecology, Obstetrics, 2020""
  • Patients diagnosed with severe PE\*
  • \*: Follow the diagnostic criteria of the Japan Society for the Study of Hypertension in Pregnancy
  • Patients with AT activity of 100% or less in the preliminary examination

You may not qualify if:

  • Patients who are judged to require immediate delivery\*
  • \*""Best Practice Guide 2015 for Care and Treatment of Hypertension in Pregnancy"" Requirements for Considering Pregnancy Termination Regardless of Pregnancy Weeks in Pregnancy-induced Hypertension Syndrome Cases will be consulted for judgment.
  • Patients with right hypochondralgia or epigastralgia
  • Patients with HELLP syndromes
  • Patients with pulmonary edema
  • Patients with severe pleural effusion, severe ascites, or serous retinal detachment
  • Patients with central nervous system disorders (eclampsia, stroke) or visual disorders (cortical blindness)
  • Patients with severe headache or urge eclampsia
  • Patients with abruptio placentae
  • Suspected patients with 8 or more obstetric DIC scores
  • Patients with a definitive diagnosis of congenital AT deficiency
  • Patients with diseases or symptoms other than the primary disease requiring immediate delivery
  • Patients on ongoing treatment with nonsteroidal anti-inflammatory drugs (NSAIDs, e.g., aspirin) or who require NSAIDs use during the course of the study.
  • Patients who have received the following drugs within 72 hours before administration of the investigational product, etc., or who require administration of the following drugs during the study period (from the start of administration of the investigational product, etc., until the date of termination of pregnancy); heparin, low-molecular-weight heparin (e.g., enoxaparin ordalteparin), fondaparinux, antiplatelet drugs (e.g., clopidogrel, prasugrel, aspirin), direct thrombin inhibitors (e.g., dabigatran), or anticoagulants (e.g., AT preparations).
  • Patients with a current or past history of serious drug allergy
  • +23 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (63)

Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital

Nagoya, Aichi-ken, Japan

Location

Fujita Health University Hospital

Toyoake, Aichi-ken, Japan

Location

Toyota Memorial Hospital

Toyota, Aichi-ken, Japan

Location

Juntendo University Urayasu Hospital

Urayasu, Chiba, Japan

Location

Tokyo Women's Medical University Yachiyo Medical Center

Yachiyo, Chiba, Japan

Location

Ehime University Hospital

Tōon, Ehime, Japan

Location

National Hospital Organization Kokura Medical Center

Kitakyushu, Fukuoka, Japan

Location

Kurume University Hospital

Kurume, Fukuoka, Japan

Location

Our Lady of the Snow Social Medical Corporation St. Mary's Hospital

Kurume, Fukuoka, Japan

Location

Hakodate Central General Hospital

Hakodate, Hokkaido, Japan

Location

Obihiro Kosei General Hospital

Obihiro, Hokkaido, Japan

Location

Hokkaido University Hospital

Sapporo, Hokkaido, Japan

Location

Sapporo City General Hospital

Sapporo, Hokkaido, Japan

Location

Japanese Red Cross Society Himeji Hospital

Himeji, Hyōgo, Japan

Location

Kobe University Hospital

Kobe, Hyōgo, Japan

Location

Ishikawa Prefectural Central Hospital

Kanazawa, Ishikawa-ken, Japan

Location

Iwate Medical University Hospital

Hizume, Iwate, Japan

Location

National Hospital Organization Shikoku Medical Center for Children and Adults

Zentsujichó, Kagawa-ken, Japan

Location

St. Marianna University School of Medicine

Kawasaki, Kanagawa, Japan

Location

The Kitasato Institute Kitasato University Hospital

Sagamihara, Kanagawa, Japan

Location

Yokohama City University Medical Center

Yokohama, Kanagawa, Japan

Location

Mie University Hospital

Tsu, Mie-ken, Japan

Location

Sendai Red Cross Hospital

Sendai, Miyagi, Japan

Location

Shinshu University Hospital

Matsumoto, Nagano, Japan

Location

National Hospital Organization Nagasaki Medical Center

Ōmura, Nagasaki, Japan

Location

Nara Medical University Hospital

Kashihara, Nara, Japan

Location

Okinawa prefectural Chubu Hospital

Uruma, Okinawa, Japan

Location

Osaka Metropolitan University Hospital

Abeno-ku, Osaka, Japan

Location

Kansai Medical University Hospital

Hirakata, Osaka, Japan

Location

Osaka Women's and Children's Hospital

Izumi, Osaka, Japan

Location

Rinku General Medical Center

Izumisano, Osaka, Japan

Location

National Cerebral and Cardiovascular Center

Suita, Osaka, Japan

Location

Saitama Medical Center

Kawagoe, Saitama, Japan

Location

Hamamatsu Medical Center

Hamamatsu, Shizuoka, Japan

Location

Hamamatsu University Hospital

Hamamatsu, Shizuoka, Japan

Location

Juntendo University Shizuoka Hospital

Izunokuni, Shizuoka, Japan

Location

Dokkyo Medical University Hospital

Mibu, Tochigi, Japan

Location

Jichi Medical University Hospital

Shimotsuke, Tochigi, Japan

Location

Juntendo University Hospital

Bunkyo-ku, Tokyo, Japan

Location

The University of Tokyo Hospital

Bunkyo, Tokyo, Japan

Location

Tokyo Metropolitan Tama Medical Center

Fuchū, Tokyo, Japan

Location

Aiiku Hospital

Minato, Tokyo, Japan

Location

Kyorin University Hospital

Mitaka, Tokyo, Japan

Location

National Center for Child Health and Development

Setagaya City, Tokyo, Japan

Location

Japanese Red Cross Medical Center

Shibuya City, Tokyo, Japan

Location

Showa University Hospital

Shinagawa, Tokyo, Japan

Location

Tokyo Metropolitan Bokutoh Hospital

Sumida City, Tokyo, Japan

Location

Yamaguchi University Hospital

Ube, Yamaguchi, Japan

Location

Yamanashi Prefectural Central Hospital

Kofu, Yamanashi, Japan

Location

Aomori Prefectural Central Hospital

Aomori, Japan

Location

Fukuoka University Hospital

Fukuoka, Japan

Location

Kagoshima City Hospital

Kagoshima, Japan

Location

Kumamoto University Hospital

Kumamoto, Japan

Location

Kyoto University Hospital

Kyoto, Japan

Location

University Hospital Kyoto Prefectural University of Medicine

Kyoto, Japan

Location

Faculty of Medicine, University of Miyazaki Hospital

Miyazaki, Japan

Location

Nagasaki University Hospital

Nagasaki, Japan

Location

Nara Prefecture General Medical Center

Nara, Japan

Location

Niigata University Medical & Dental Hospital

Niigata, Japan

Location

Okayama University Hospital

Okayama, Japan

Location

Osaka City General Hospital

Osaka, Japan

Location

Oita Prefectural Hospital

Ōita, Japan

Location

Toyama University Hospital

Toyama, Japan

Location

Related Publications (1)

  • Saito S, Takagi K, Moriya J, Kobayashi T, Kanayama N, Sameshima H, Morikawa M, Sago H, Adachi T, Ohkuchi A, Takeda S, Masuyama H, Seki H. A randomized phase 3 trial evaluating antithrombin gamma treatment in Japanese patients with early-onset severe preeclampsia (KOUNO-TORI study): Study protocol. Contemp Clin Trials. 2021 Aug;107:106490. doi: 10.1016/j.cct.2021.106490. Epub 2021 Jun 24.

    PMID: 34174463BACKGROUND

MeSH Terms

Conditions

Pre-Eclampsia

Condition Hierarchy (Ancestors)

Hypertension, Pregnancy-InducedPregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital Diseases

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 10, 2019

First Posted

December 2, 2019

Study Start

November 19, 2019

Primary Completion

May 17, 2023

Study Completion

June 16, 2023

Last Updated

November 15, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will share

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.

Locations