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Healthy Volunteer StudyPhase 1NCT03086278

A Study of AST-008 in Healthy Subjects

A Phase 1 study testing AST-008 in people with Healthy Volunteer Study, run by Exicure, Inc. at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

AST-008 will be dosed subcutaneously to healthy volunteers in a combined SAD/MAD study to evaluate its safety, tolerability, pharmacokinetics and pharmacodynamics. Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Volunteer Study
What is being tested?
AST-008
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteUnited Kingdom
Study dates
20 Oct 2017to 16 Aug 2018
Phase
Phase 1
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 to 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Main Inclusion Criteria:

  1. Healthy male or female subjects aged ≥18 and ≤40 years of age at the time of first dosing.
  2. Subjects must have a body mass index (BMI) between 18.0-25.0 kg/m² inclusive.
  3. Satisfactory medical assessment with no clinically significant or relevant abnormalities as determined by medical history, physical examination, vital signs, 12-lead ECG, and clinical laboratory evaluation (haematology, biochemistry, coagulation, and urinalysis) that is reasonably likely to interfere with the subject's participation in or ability to complete the study as assessed by the Investigator.
  4. Ability to provide written, personally signed, and dated informed consent to participate in the study, in accordance with the ICH Good Clinical Practice (GCP) Guideline E6 (1996) and applicable regulations, before completing any study-related procedures.
  5. An understanding, ability, and willingness to fully comply with study procedures and restrictions.

Main Exclusion Criteria:

  1. Current or recurrent disease (e.g., cardiovascular, haematological, neurological, endocrine, renal, liver, GI or other conditions) that could affect the action, absorption, or disposition of AST-008, or could affect clinical assessments or clinical laboratory evaluations.
  2. Any history of cancer.
  3. Any history (including significant and confirmed family history) of autoimmune or antibody-mediated diseases including but not limited to: systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, autoimmune hepatitis, or thrombocytopenia.
  4. Has had an acute illness within two weeks prior to screening.
  5. Current or relevant history of physical or psychiatric illness that may require treatment or make the subject unlikely to fully comply with the requirements of the study or complete the study, or any condition that presents undue risk from the investigational product or study procedures.
  6. Any other significant disease or disorder which, in the opinion of the investigator, may either put the subject at risk because of participation in the study may influence the result of the study, or the subject's ability to participate in the study.
  7. Female subjects who are pregnant or breastfeeding.
  8. Subjects with abnormal findings of inguinal, axillary, or cervical lymph nodes at screening or Day -1.
  9. A positive human immunodeficiency virus (HIV) antibody screen, hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) antibody screen.
  10. Titres above reference ranges (according to local laboratory) for autoimmune antibodies: rheumatoid factor (RF), anti-nuclear antibodies (ANA), anti-neutrophil cytoplasmic antibodies (ANCA).

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Richmond Pharmacology

    London, SE1 1YR

Other trials in United Kingdom

About this study

Official title: A Randomized, Combined SAD/MAD Phase 1 Study of the Safety, Pharmacokinetics and Pharmacodynamics of AST 008 in Healthy Subjects

AST-008 will be dosed subcutaneously to healthy volunteers in a combined SAD/MAD study to evaluate its safety, tolerability, pharmacokinetics and pharmacodynamics.

Being tested
AST-008

What participants receive

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

  • AST-008Drug

    AST-008 is a toll-like receptor 9 agonist.

Study groups in NCT03086278
Study groupRoleWhat they receive
Single Ascending DoseExperimentalNot described
Receives: Drug: AST-008

What is being measured

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

  1. Serious related adverse events

    To evaluate SAEs after a single subcutaneous dose of AST-008

    Measured: Up to 1 month after the last dose of AST-008

  2. Adverse events

    To evaluate adverse events after a single subcutaneous dose of AST-008

    Measured: Up to 1 month after the last dose of AST-008

Secondary outcomes (6)
  1. Dose finding

    To recommend a dose and regimen for further development.

    Measured: Up to 1 month after the last dose of AST-008

  2. Maximum plasma concentration assessment

    Measurement of the maximum observed plasma concentration (Cmax) after single doses of AST-008

    Measured: Up to 1 month after the last dose of AST-008

  3. AUC assessment

    Measurement of the area under the curve (AUC) after single doses of AST-008

    Measured: Up to 1 month after the last dose of AST-008

  4. Pharmacodynamics

    Measurement of type 1 cytokine concentrations as a function of time after single doses of AST-008

    Measured: Up to 1 month after the last dose of AST-008

  5. Pharmacodynamics

    Measurement of changes in absolute number and and fraction of a panel of lymphocyte markers as a function of time after single doses of AST-008

    Measured: Up to 1 month after the last dose of AST-008

  6. QTc interval testing

    To determine the effect of AST-008 on QTc interval

    Measured: Up to 1 month after the last dose of AST-008

Timeline

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

  1. First posted22 Mar 2017
  2. Study start20 Oct 2017
  3. Primary completion16 Aug 2018
  4. Study completion16 Aug 2018

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 1
Primary purpose
Screening
Intervention model
Sequential
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03086278
Sponsor's protocol ID
AST-008-101
Status last verified
Sep 2018
First submitted
10 Mar 2017
Last updated
25 Sep 2018
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Daniel WL, Lorch U, Mix S, Bexon AS. A first-in-human phase 1 study of cavrotolimod, a TLR9 agonist spherical nucleic acid, in healthy participants: Evidence of immune activation. Front Immunol. 2022 Dec 13;13:1073777. doi: 10.3389/fimmu.2022.1073777. eCollection 2022.

    PubMed 36582243

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing AST-008 in people with Healthy Volunteer Study, run by Exicure, Inc. at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

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: finished, as of the sponsor's last update on 25 Sep 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Serious related adverse events (time frame: Up to 1 month after the last dose of AST-008). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03086278, which also lists 1 linked publication.

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 25 Sep 2018.

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