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HealthyPhase 1NCT05718518

Study to Evaluate Safety, Tolerability, PK and the Food Effect on PK of ASC11/RTV Tablets in Healthy Subjects

A Phase 1 study testing ASC11 tablets and RTV tablets in people with Healthy and COVID-19, run by Ascletis Pharmaceuticals Co., Ltd. at 1 site in China.

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

This is a randomized, double-blind, placebo-controlled phase I clinical study evaluating the safety, tolerability, and pharmacokinetics of ASC11 plus ritonavir tablets in healthy subjects and an open-label, cross-over study evaluating the effect of food on the pharmacokinetics of ASC11 plus ritonavir tablets Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Healthy, COVID-19
What is being tested?
ASC11 tablets and RTV tablets
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
72 participants
Where
1 siteChina
Study dates
13 Jan 2023to 14 Apr 2023
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 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy male or female subjects aged 18-60 years (including boundary values)
  • If a woman has no planned pregnancy within 6 months after signing the informed consent, and is willing to use effective contraception (e.g. condom, uterine cap, non-hormonal intrauterine device [IUD]) for at least 3 months from the first administration of the study intervention to the last administration of the study intervention; Or not fertile (e.g. surgical sterilization [bilateral oophorectomy, tubal ligation, or hysterectomy] or natural sterilization [continuous > 12 months without menstruation])
  • If male, agree to use effective contraception throughout the study intervention and for at least 3 months after the last dose of the study intervention, and do not donate sperm.
  • General good health based on history, physical examination (screening and check-in assessment), vital signs and other screening assessments.
  • Able to understand the research content, comply with the research protocol, and voluntarily sign the informed consent.

Who cannot join

  • Pregnant and lactating women.
  • Patients with acute or chronic diseases, including but not limited to cardiovascular, digestive, respiratory, urinary, nervous, endocrine, immune, musculoskeletal, and skin conditions, were judged by the investigator.
  • Any previous or existing hematological disorders or disorders, major liver disease, family history of bleeding/platelet disease.
  • Previous or existing cancer (other than basal cell carcinoma or squamous cell carcinoma of the skin), or hygrosis.
  • Have an autoimmune disease, immunosuppression, or any form of immune deficiency.

Trial locations and contacts

1 site in 1 country.

China1 site
  • The First Affiliated Hospital of Zhejiang University School of Medicine

    Hangzhou, Zhejiang, 310003

Other trials in China

About this study

Official title: A Phase I, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Safety, Tolerability, and PK of ASC11/RTV Tablets and Study to Evaluate the Effects of Food on the PK of ASC11/RTV Tablets in Healthy Subjects

This is a randomized, double-blind, placebo-controlled phase I clinical study evaluating the safety, tolerability, and pharmacokinetics of ASC11 plus ritonavir tablets in healthy subjects and an open-label, cross-over study evaluating the effect of food on the pharmacokinetics of ASC11 plus ritonavir tablets

Conditions
Healthy, COVID-19
Being tested
ASC11 tablets, Placebo, RTV tablets
Keywords
COVID-19, ASC11, 3CL-pro
Medical subject headings
COVID-19

What participants receive

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

  • ASC11 tabletsDrug

    Part 1: Subjects will receive ASC11 tablets on single ascending doses with proposed dose levels of ASC11 tablets: 100mg (cohort 1), 200 mg (cohort 2), 400mg (cohort 3) and 800 mg (cohort 4).

    Part 2: Subjects will receive ASC11tablets 100 to 300 mg (including 3 cohorts) and ASC11 tablets 300 mg(cohort 4) twice daily (BID) for 5 consecutive days and receive a single dose in the early morning of Day 6.

    Part 3: Subjects will be randomized to receive ASC11 tablets two single 200 mg or 300 mg doses (fed or fasted)

  • PlaceboDrug

    Part 1 and 2: Subjects will be randomized to receive placebo.

  • RTV tabletsDrug

    Part 1: Subjects will receive RTV tablets on 100 mg (cohort 1-4). Part 2: Subjects will receive RTV tablets 100 mg (including 3 cohorts) twice daily (BID) for 5 consecutive days and receive a single dose in the early morning of Day 6.

    Part 3: Subjects will be randomized to receive two single 100 mg doses (fed or fasted)

Study groups in NCT05718518
Study groupRoleWhat they receive
ASC11 tabletsExperimentalPart 1: Subjects will receive ASC11 tablets on single ascending doses with proposed dose levels of ASC11 tablets: 100mg (cohort 1), 200 mg (cohort 2), 400mg (cohort 3) and 800 mg (cohort 4). Part 2: Subjects will receive ASC11tablets 100 to 300 mg (including 3 cohorts) and ASC11 tablets 300 mg(cohort 4) twice daily (BID) for 5 consecutive days and receive a single dose in the early morning of Day 6. Part 3: Subjects will be randomized to receive ASC11 tablets two single 200 mg or 300 mg doses (fed or fasted)
Receives: Drug: ASC11 tablets
RTV tabletsExperimentalPart 1: Subjects will receive RTV tablets on 100 mg (cohort 1-4). Part 2: Subjects will receive RTV tablets 100 mg (including 3 cohorts) twice daily (BID) for 5 consecutive days and receive a single dose in the early morning of Day 6. Part 3: Subjects will be randomized to receive two single 100 mg doses (fed or fasted)
Receives: Drug: RTV tablets
PlaceboPlacebo comparatorPart 1 and 2: Subjects will be randomized to receive placebo
Receives: Drug: Placebo

What is being measured

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

  1. Incidence of Adverse Events (AEs) and Serious Adverse Events (SAEs) of ASC11 relative to placebo

    To evaluate the safety and tolerability of ASC11 tablets combined with Ritonavir tablets in healthy subjects given single and multiple dose increments.

    Measured: From screening through study completion, up to 14 days

Secondary outcomes (8)
  1. Title Pharmacokinetics (PK) parameter of ASC11 tablets combined with Ritonavir tablets in Plasma: AUC 0-inf

    Area under the concentration-time curve from the time of dosing extrapolated to time infinity

    Measured: From screening through study completion, up to 14 days

  2. Title -Pharmacokinetics (PK) parameter of ASC11 tablets combined with Ritonavir tablets in Plasma: Cmax

    Maximum concentration

    Measured: From screening through study completion, up to 14 days

  3. Pharmacokinetics (PK) parameter of ASC11 tablets combined with Ritonavir tablets in Plasma: Tmax

    Time to Maximum Observed Plasma Concentration

    Measured: From screening through study completion, up to 14 days

  4. Pharmacokinetics (PK) parameter of ASC11 tablets combined with Ritonavir tablets in Plasma: AUC 0-t

    Area under the concentration-time curve from the time of dosing to the last measurable concentration

    Measured: From screening through study completion, up to 14 days

  5. Pharmacokinetics (PK) parameter of ASC11 tablets combined with Ritonavir tablets in Plasma: T1/2

    Elimination half-life

    Measured: From screening through study completion, up to 14 days

  6. Pharmacokinetics (PK) parameter of ASC11 tablets combined with Ritonavir tablets in Plasma: CL/F

    Apparent total systemic clearance

    Measured: From screening through study completion, up to 14 days

  7. Pharmacokinetics (PK) parameter of ASC11 tablets combined with Ritonavir tablets in Plasma: Vz/F

    Apparent volume of distribution during the terminal elimination phase

    Measured: From screening through study completion, up to 14 days

  8. Pharmacokinetics (PK) parameter of ASC11 tablets in Urine: CLR

    Renal clearance

    Measured: From screening through study completion, up to 14 days

Timeline

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

  1. First posted8 Feb 2023
  2. Study start13 Jan 2023
  3. Primary completion14 Apr 2023
  4. Study completion14 Apr 2023

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
72 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05718518
Sponsor's protocol ID
ASC11-101
Status last verified
Oct 2024
First submitted
6 Jan 2023
Last updated
13 Nov 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ASC11 tablets and RTV tablets in people with Healthy and COVID-19, run by Ascletis Pharmaceuticals Co., Ltd. at 1 site in China.

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 5 inclusion and 5 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: finished, as of the sponsor's last update on 13 Nov 2024. 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 China. 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. 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 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?

Incidence of Adverse Events (AEs) and Serious Adverse Events (SAEs) of ASC11 relative to placebo (time frame: From screening through study completion, up to 14 days). 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 13 Nov 2024.

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