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Pulmonary EmbolismPhase 2NCT03316729

DS-9231 in Intermediate-risk (Sub-massive) Acute Pulmonary Embolism (PE)

A Phase 2 study testing DS-9231 in people with Pulmonary Embolism, run by Daiichi Sankyo.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The primary objective of this study is to evaluate safety and initial effectiveness of DS-9231 when taken together with current standard of care. Evaluation will be done with low, medium and then high doses of DS-9231 versus placebo, in participants with medium-risk acute pulmonary embolism. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Pulmonary Embolism
What is being tested?
DS-9231
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
0 participants
Where
No sites listed yet
Study dates
Jan 2018to Feb 2020
Phase
Phase 2
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Had protocol-defined pulmonary embolism (PE)
  • Has stable systolic blood pressure (SBP) >90 mm Hg
  • Has evidence of right ventricular (RV) dysfunction
  • Has executed informed consent

Who cannot join

  • Has history or plans for thrombotic therapy outside protocol allowance
  • Has other contraindications for participation
  • Has laboratory results outside protocol-specified limits
  • Is pregnant, nursing, and/or not willing or able to use protocol-defined contraceptives
  • Has history or condition, or participated in another investigational study that (per protocol or in the opinion of the investigator) might compromise:
  • the safety or well-being of the participant or the participant's offspring
  • the safety of study staff
  • the analysis of results

About this study

Official title: Evaluation of Safety and Thrombolytic Effect of Ascending Doses of DS-9231 (TS23) in Subjects With Intermediate-risk (Sub-massive) Acute Pulmonary Embolism (PE)

The primary objective of this study is to evaluate safety and initial effectiveness of DS-9231 when taken together with current standard of care. Evaluation will be done with low, medium and then high doses of DS-9231 versus placebo, in participants with medium-risk acute pulmonary embolism.

Being tested
DS-9231, Placebo
Keywords
Sub-massive acute pulmonary embolism
Medical subject headings
Pulmonary Embolism

What participants receive

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

  • DS-9231Drug

    Also called Investigational product

    DS-9231 in saline solution for intravenous infusion

  • PlaceboDrug

    Also called Matching placebo

    Placebo is matching saline solution for intravenous infusion

Study groups in NCT03316729
Study groupRoleWhat they receive
DS-9231ExperimentalIn conjunction with standard of care, participants will receive an intravenous infusion delivering DS-9231 at ascending dose levels in Cohort 1, 2, and 3
Receives: Drug: DS-9231
PlaceboPlacebo comparatorIn conjunction with standard of care, participants will receive an intravenous infusion delivering only saline solution as matching placebo comparator
Receives: Drug: Placebo

What is being measured

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

  1. Percent change from baseline in total thrombus volume

    Measured: Baseline, 48-96 hours after study drug administration

  2. Percentage of participants with various gradations of decrease in total thrombus volume

    Measured: Baseline, 48-96 hours after study drug administration

  3. Number of participants with major or clinically relevant nonmajor bleeding

    Measured: within 7 days after study drug administration

  4. Number of participants with adverse events

    Measured: within 30 days after study drug administration

Secondary outcomes (13)
  1. Percent change from baseline in total thrombus volume

    Measured: Baseline, 30 days after study drug administration

  2. Percentage of participants with with various gradations of decrease in total thrombus volume

    Measured: 30 days after study drug administration

  3. Percent change from baseline in RV/ left ventricle (LV) diameter ratio

    Measured: Baseline, 48-96 hours and 30 days after study drug administration

  4. Number of participants with PE-related deaths

    Measured: within 30 days after study drug administration

  5. Number of participants who died from any cause

    Measured: within 30 days after study drug administration

  6. Percentage of participants with clinical deterioration requiring additional rescue therapy for PE

    Measured: within 30 days after study drug administration

  7. Number of participants with with recurrent, objectively documented venous thromboembolism (VTE)

    Measured: within 30 days after study drug administration

  8. Participant-reported quality of life on a proprietary scale

    Measured: Baseline, Day 30 after study drug administration

  9. Number of participants with major or clinically relevant nonmajor bleeding

    Measured: within 30 days after study drug administration

  10. Number of participants re-hospitalized for any reason

    Measured: within 30 days after study drug administration

  11. Number of participants with non-bleeding adverse events (AEs)

    Measured: within 30 days after study drug administration

  12. Number of participants with anti-drug antibodies (ADAs)

    Measured: within 30 days after study drug administration

  13. Plasma concentration of DS-9231

    Measured: Baseline to 30 days after study drug administration

Timeline

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

  1. First posted20 Oct 2017
  2. Study startJan 2018 (estimated)
  3. Primary completionFeb 2020 (estimated)
  4. Study completionFeb 2020 (estimated)

Why it stopped: Product development cancelled.

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Model description
Ascending doses in sequential cohorts (1-3) will be evaluated against placebo
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03316729
Sponsor's protocol ID
DS9231-A-U201
Other IDs
2017-000552-25, 2017
Status last verified
Nov 2017
First submitted
17 Oct 2017
Last updated
24 Dec 2018
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: De-identified individual participant data (IPD) 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/

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing DS-9231 in people with Pulmonary Embolism, run by Daiichi Sankyo.

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 4 inclusion and 8 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: withdrawn, as of the sponsor's last update on 24 Dec 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 was withdrawn before enrolling participants, so there are no results.

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?

Percent change from baseline in total thrombus volume (time frame: Baseline, 48-96 hours after study drug administration). The study lists 4 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 24 Dec 2018.

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