A Study to Assess the Safety and Pharmacokinetics of Single Ascending Subcutaneous and Intravenous Doses of DS-2325a in Healthy Subjects

March 2, 2023 updated by: Daiichi Sankyo, Inc.

A Phase 1, Subjects- and Investigator-Blinded, Sponsor-Unblinded, Placebo-Controlled, Randomized, Sequential Cohort Study to Assess the Safety and Pharmacokinetics of Single Ascending Subcutaneous and Intravenous Doses of DS-2325a in Healthy Subjects

Netherton syndrome (NS) is a rare autosomal recessive disease and no systemic treatment or standard of care currently exists for patients with NS. DS-2325a, a specific and potent inhibitor of kallikrein 5, is expected to treat NS by replacing a defective gene.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This first-in-human study for DS-2325a will evaluate the safety, tolerability, and pharmacokinetics of single ascending doses of DS-2325a in healthy participants. DS-2325a will be evaluated after both subcutaneous (SC) injections and intravenous (IV) infusions, as it may have to be given intravenously to young patients and as loading dose.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
64

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Texas
      • San Antonio, Texas, United States, 78217
        • Worldwide Clinical Trials

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Participants must give written informed consent to participation in the study prior to Screening
  • Healthy men and women 18 to 45 years of age (inclusive), with a BMI of 18 kg/m2 to 30 kg/m^2 (inclusive) at Screening
  • All women must have a negative serum pregnancy test at Screening and all women of childbearing potential must have a negative urine pregnancy test on Day -1
  • Women must not be lactating during the study treatment period and for 3 months after the last dose of study treatment
  • Women of childbearing potential must practice effective contraception during the study treatment period and for 3 months after the last dose of study treatment. They must agree to use 2 different means of nonhormonal contraceptive methods
  • Women of non-childbearing potential must be either surgically sterile (ie, bilateral tubal ligation at least 3 months prior to dosing) or in menopausal state confirmed as follows: 1 year of spontaneous amenorrhea without an alternative medical cause and a serum FSH level ≥40 mIU/mL
  • Men must agree to use contraception (condom with spermicide) during the study treatment period and for at least 3 months after the last dose of study treatment or be surgically sterile (vasectomy at least 3 months prior to dosing)
  • Women should not donate eggs and men should not donate sperm during the study treatment period and for at least 3 months after the last dose of study treatment
  • Participants must be in good health as determined by Screening medical history, physical examination, vital signs, ECGs, serum chemistry, hematology, virology, and urinalysis performed at Screening and on Day -1

Exclusion Criteria:

  • History or current chronic lung disease including asthma, chronic obstructive pulmonary disease (COPD), or heavy smoking of >10 pack years
  • Previous or current treatment with systemic corticosteroids or any immunosuppressive agents
  • Participants who have received a transfusion or any blood products within the last year prior to dosing
  • Participants who have made any blood donation or have had a loss of blood of ≥500 mL within 56 days prior to the dose of study drug
  • Participants who consume more than 21 units of alcohol per week (1 unit of alcohol equals 1/2 pint of beer, 4 ounces of wine, or 1 ounce of spirits) or those participants who have a significant history of alcoholism or drug/chemical abuse within the last 2 years.
  • Participants with positive results on tests for drugs of abuse, cotinine, or alcohol at Screening and/or Day -1.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: DS-2325a SC
Participants who will be randomized to receive DS-2325a as a fixed dose subcutaneous (SC) injection (starting dose 30 mg).
Drug: DS-2325a
Subcutaneous injection (starting dose 30 mg)
Drug: DS-2325a
Intravenous infusion (starting dose 100 mg)
Placebo Comparator: Placebo SC
Participants who will be randomized to receive placebo as a subcutaneous (SC) injection.
Drug: Placebo
Intravenous infusion
Drug: Placebo
Subcutaneous injection
Experimental: DS-2325a IV
Participants who will be randomized to receive DS-2325a as a fixed dose intravenous (IV) infusion (starting dose 100 mg).
Drug: DS-2325a
Subcutaneous injection (starting dose 30 mg)
Drug: DS-2325a
Intravenous infusion (starting dose 100 mg)
Placebo Comparator: Placebo IV
Participants who will be randomized to receive placebo as an intravenous infusion.
Drug: Placebo
Intravenous infusion
Drug: Placebo
Subcutaneous injection

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants with Any Treatment-emergent Adverse Events Following Administration of DS-2325a
Time Frame: Screening (Day -28 to -3) pre-dose up to Day 57 post-dose
Treatment-emergent adverse events (TEAEs) are defined as new adverse events (AEs) that occur after the dose of study drug or as AEs that were present prior to the dose of study drug but which worsened in severity after the start of study drug.
Screening (Day -28 to -3) pre-dose up to Day 57 post-dose

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Pharmacokinetic Parameter Area Under the Concentration Curve (AUC)
Time Frame: SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic parameters will be calculated for DS-2325a by noncompartmental methods.
SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic Parameter Time to Maximum Concentration (Tmax)
Time Frame: SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic parameters will be calculated for DS-2325a by noncompartmental methods.
SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic Parameter Maximum Concentration (Cmax)
Time Frame: SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic parameters will be calculated for DS-2325a by noncompartmental methods.
SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic Parameter Last Measurable Time (Tlast)
Time Frame: SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic parameters will be calculated for DS-2325a by noncompartmental methods.
SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic Parameter Elimination Rate Constant Associated With the Terminal Phase (Kel)
Time Frame: SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic parameters will be calculated for DS-2325a by noncompartmental methods.
SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic Parameter Elimination Half-life (T1/2)
Time Frame: SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Pharmacokinetic parameters will be calculated for DS-2325a by noncompartmental methods.
SC and IV cohorts: Day 1 pre-dose and 1, 2, 4, 8 hours (hr) post-dose; 24, 48, 96, 120, 144, 168, 192, 240, 288, 336, 384, 432, 480, 552, 624, 696, 768, 840, 1008, 1176, 1344 hr post-dose
Number of Participants Who Are Anti-Drug Antibody (ADA)-Positive (Baseline and Post-Baseline) and Number of Participants Who Have Treatment-emergent ADA
Time Frame: Day 1 pre-dose and 336 hours (hr), 552 hrs, 696 hrs, and 1344 hrs post-dose
Blood samples will be collected to determine ADAs.
Day 1 pre-dose and 336 hours (hr), 552 hrs, 696 hrs, and 1344 hrs post-dose

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Daiichi Sankyo, Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 20, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 26, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 26, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 19, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 19, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 24, 2022

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 6, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 2, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2023

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • DS2325-104

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

De-identified individual participant data (IPD) on completed studies and applicable supporting clinical trial documents may be available upon request at https://vivli.org/. In cases where clinical trial data and supporting documents are provided pursuant to our company policies and procedures, Daiichi Sankyo will continue to protect the privacy of our clinical trial participants. Details on data sharing criteria and the procedure for requesting access can be found at this web address: https://vivli.org/ourmember/daiichi-sankyo/

IPD Sharing Time Frame

Completed studies that has reached a global end or completion with all data set collected and analyzed, and for which the medicine and indication have received European Union (EU) and United States (US), and/or Japan (JP) marketing approval on or after 01 January 2014 or by the US or EU or JP Health Authorities when regulatory submissions in all regions are not planned and after the primary study results have been accepted for publication.

IPD Sharing Access Criteria

Formal request from qualified scientific and medical researchers on IPD and clinical study documents on completed clinical trials supporting products submitted and licensed in the United States, the European Union and/or Japan from 01 January 2014 and beyond for the purpose of conducting legitimate research. This must be consistent with the principle of safeguarding study participants' privacy and consistent with provision of informed consent.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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