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ThrombosisPhase 1NCT07618351

A Phase I SAD/MAD and Liver Effect Study of Vitalangio in Venous Thromboembolism Patients .

A Phase 1 study testing Experimental: Food effect group and Active Comparator: Multiple dose group in people with Thrombosis and Cardiovascular Diseases, run by Peking University First Hospital 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

The goal of this clinical trial is to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of a new drug, Vitalangio1, in healthy male and female volunteers aged 18 to 55 years old. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Thrombosis, Cardiovascular Diseases
What is being tested?
Experimental: Food effect group and Active Comparator: Multiple dose group
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
627 participants
Where
1 siteChina
Study dates
20 Jun 2023to 12 Mar 2026
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 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy subjects aged 18-55 years (including boundary values)
  • Body mass index (BMI) 19-26 kg/m2 (including boundary value), male body weight >= 50.0 kg and <90.0 kg, female body weight >= 45.0 kg and <90.0 kg
  • In good health with no clinically significant abnormalities as determined by physical examination, clinical laboratory tests ,12-lead ECG ,abdominal B-ultrasound and chest X-ray examination
  • Subjects with Fertility (including partners) are willing to voluntarily take effective measures for reasonable contraception within 6 months from the beginning of screening to the last administration of trial drugs; Postmenopausal women should have a menopausal period of >= 1 year ; Within 6 months after receiving the investigational drug, male subjects agreed to use acceptable contraceptive measures and promised not to donate sperm; Female participants agree to use acceptable contraceptive measures and ensure that they do not donate eggs within 6 months from the start of screening until receiving the investigational medication
  • Understand the research procedures and methods, willing and able to give written informed consent and comply with the study procedures and restrictions

Who cannot join

  • Vital sign examination: body temperature>37.3 ℃, pulse>100 beats/minute, systolic blood pressure >= 140 mmHg or<90 mmHg, diastolic blood pressure >= 90 mmHg or<50 mmHg; The screening period electrocardiogram examination results showed that QTcF>450 ms (male) or 470 ms (female) or conduction block, which was determined by the researcher to be clinically significant
  • Those who have one or more positive testing at screening for hepatitis B virus surface antigen, hepatitis C virus antibody, human immunodeficiency virus antibody, treponema pallidum specific antibody
  • Those who have a history of drug abuse ; have a positive urine drug screen result for drugs of abuse at the screening visit
  • Alanine transaminase, AST, creatinine>ULN; Alkaline phosphatase, bilirubin (total bilirubin or direct bilirubin)>1.5 × ULN
  • Those who are suspected of being allergic to the study drug or any ingredient in the study drug
  • Those who have a history of related diseases that lead to abnormal coagulation function in the past
Show all 13Show fewer
  • Those who have a history of recurrent or chronic infection within one month prior to screening
  • Those who have undergone surgeries within the first 6 months of screening that have been determined by researchers to affect drug absorption, distribution, metabolism, and excretion
  • Those who consume foods within the first 2 weeks of screening that may affect the metabolism of drugs in the body, or those who are considered by researchers to have other diets that affect drug absorption, distribution, metabolism, and excretion
  • Those who have taken any prescription drugs, Over-the-counter drug, health products and Chinese herbal medicines within 2 weeks before screening, or who have taken within 5 half lives of drugs during screening; Plan to take other investigational drugs not included in this study during the trial period
  • Within one month before screening,any dosage form of vaccine needs to be used
  • Those who donate blood or have a total blood loss of >= 200 mL from 1 month prior to screening to administration, or who donate blood or have a total blood loss of >= 400 mL from 3 months prior to screening to administration, or who have received blood transfusions from 8 weeks prior to screening to administration
  • The investigators believe that the subjects are not suitable for other situations in this experime

Trial locations and contacts

1 site in 1 country.

China1 site
  • Peking University First Hospital

    Beijing, Beijing Municipality, 100034

Other trials in China

About this study

Official title: A Phase I, Randomized, Double-blind, Placebo-controlled, Single, and Multiple-dose Escalation Study Evaluating the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Vitalangio1 in Venous Thromboembolism Patients and a Randomized, Open-label, 2-period Crossover Liver Effect Study

The goal of this clinical trial is to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of a new drug, Vitalangio1, in healthy male and female volunteers aged 18 to 55 years old.

The main questions it aims to answer are:

Read more

What is the safety and tolerability profile of Vitalangio1 following single and multiple-dose administrations? What are the pharmacokinetic (PK) and pharmacodynamic (PD) characteristics of Vitalangio1, and how does food intake affect its absorption and drug metabolism? Researchers will compare participants receiving Vitalangio1 tablets with those receiving a placebo to see if the drug is safe, well-tolerated, and demonstrates the expected pharmacological effects compared to no active treatment.

Participants will:

Receive either Vitalangio1 tablets or a placebo orally (through single or multiple escalating doses).

Participate in a 2-period crossover food effect study, taking the study drug under different dietary conditions (fasted vs. fed).

Undergo continuous medical monitoring, including physical examinations, vital sign measurements, ECGs, and provide blood/urine samples to track the drug's metabolic and safety profile.

Being tested
Placebo Comparator: Single dose group, Experimental: Food effect group, Active Comparator: Multiple dose group
Medical subject headings
Thrombosis, Cardiovascular Diseases

What participants receive

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

  • Placebo Comparator: Single dose groupDrug

    In this randomized, double-blind, placebo-controlled arm, eligible healthy participants will be assigned to different consecutive dose-escalation cohorts. Within each cohort, participants will be randomized to receive either a single oral dose of Vitalangio1 tablets or visually identical placebo tablets. The administration will take place under strict fasting conditions (typically following an overnight fast of at least 10 hours) with a standard volume of water. The study follows a sequential dose-escalation design: the first cohort will receive the lowest predefined starting dose. Subsequent cohorts will only receive the next higher dose level after an independent Safety Review Committee (SRC) thoroughly evaluates the safety, tolerability, and preliminary pharmacokinetic (PK) data from the preceding cohort and confirms it is safe to proceed. The primary focus is to monitor for any acute adverse events and determine the maximum tolerated single dose.

  • Experimental: Food effect groupDrug

    This open-label, randomized, two-sequence, two-perio Vitalangio1. Participants will be randomized to receive a single, fixed oral dose of td crossover arm evaluates how food impacts the absorption and pharmacokinetics of he drug under two alternating conditions: strictly fasted (following an overnight fast) or fed (30 minutes after a standardized high-fat, high-calorie breakfast).

    Following the Period 1 administration, a 7-day washout period will be implemented to ensure complete drug elimination. In Period 2, participants will cross over to receive the exact same dose under the alternate dietary condition. No placebo is utilized in this arm. During both periods, intensive blood sampling will be conducted to evaluate and compare key pharmacokinetic parameters, specifically the maximum plasma concentration (Cmax) and area under the curve (AUC), between the fasted and fed states.

  • Active Comparator: Multiple dose groupDrug

    This arm also employs a randomized, double-blind, placebo-controlled, sequential dose-escalation design, but focuses on the cumulative effects of the drug. Healthy participants within each dose cohort will be randomized to receive repeated oral administrations of either Vitalangio1 tablets or a matching placebo. The intervention involves taking the study drug continuously over a predetermined number of consecutive days at a specific frequency (e.g., once or twice daily, as guided by the pharmacokinetic results from the single-dose arm). Administration will typically occur at the same time each day to maintain steady-state drug levels. Similar to the single-dose arm, dose escalation to the next cohort is strictly contingent upon a comprehensive safety and tolerability review of the current cohort's data. This arm is designed to assess steady-state pharmacokinetics, drug accumulation, and sustained safety profiles over a prolonged dosing period.

Study groups in NCT07618351
Study groupRoleWhat they receive
Single dose groupPlacebo comparatorParticipants will receive either Vitalangio1 oral tablets or a matching placebo. The intervention consists of a single oral administration at escalating dose levels, which are determined by the safety and tolerability dose-escalation protocol, meaning the actual treatment duration for this specific intervention is only one day.
Receives: Drug: Placebo Comparator: Single dose group
Food effect groupExperimentalParticipants follows a two-period crossover design where participants will exclusively receive a selected fixed single dose of the Vitalangio1 oral tablet. The intervention requires each participant to take the single oral dose under two distinct dietary conditions-once in a completely fasted state and once following a high-fat meal. These two administration periods are separated by a specific washout duration, typically seven days, to accurately assess the impact of food on drug absorption.
Receives: Drug: Experimental: Food effect group
Multiple dose groupActive comparatorThe intervention involves the administration of Vitalangio1 oral tablets or a placebo over a continuous timeframe. Participants will receive multiple escalating doses on consecutive days, with the precise dosage, daily frequency, and overall duration dictated by the multiple-dose testing protocol to evaluate cumulative safety and pharmacokinetics.
Receives: Drug: Active Comparator: Multiple dose group

What is being measured

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

  1. Incidence and severity of Adverse Events (AEs) and Serious Adverse Events (SAEs)

    Safety and tolerability will be evaluated by monitoring the incidence, severity, and causality of Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs). The assessment also includes monitoring clinically significant changes from baseline in vital signs (such as blood pressure, heart rate, and temperature), 12-lead electrocardiograms (ECGs), physical examinations, and clinical laboratory parameters (hematology, serum chemistry, and urinalysis) across the single-dose, multiple-dose, and food effect groups.

    Measured: From the time of the first dose of the study drug until the end of the final safety follow-up visit (typically up to 7 to 14 days following the last dose administration).

  2. Pharmacokinetics (PK): Maximum Observed Plasma Concentration

    The maximum observed plasma concentration of the active components (e.g., serine protease/nattokinase and relevant metabolites) will be determined from the plasma concentration-time profile.

    Measured: Pre-dose and at multiple time points post-dose up to 72 hours (e.g., 0.5, 1, 2, 4, 6, 8, 12, 24, 48, and 72 hours).

  3. Number of Participants with Clinically Significant Changes in Clinical Laboratory Parameters

    Safety assessment includes monitoring the number of participants with clinically significant abnormalities compared to baseline in hematology, serum chemistry, and urinalysis (including liver and kidney function tests).

    Measured: From baseline (Day 0) to Day 14 post-administration.

  4. Pharmacokinetics (PK): Area Under the Plasma Concentration-Time Curve

    The area under the plasma concentration-time curve from time zero to the last measurable concentration will be calculated to assess the total systemic exposure of the intervention.

    Measured: Pre-dose and at multiple time points post-dose up to 72 hours.

Secondary outcomes (3)
  1. Change from Baseline in Coagulation Function: Coagulation Factor XI (FXI) Activity

    Pharmacodynamic efficacy will be assessed by measuring the percentage change in plasma Coagulation Factor XI (FXI) activity levels from baseline, evaluating the intervention's impact on the intrinsic coagulation pathway.

    Measured: Pre-dose (baseline) and at prespecified time points (e.g., 2, 4, 8, 24, and 48 hours post-dose).

  2. Change from Baseline in Standard Coagulation Parameters

    The effect of the intervention on overall coagulation status will be evaluated by measuring the absolute change in activated partial thromboplastin time (aPTT) and prothrombin time (PT) in seconds.

    Measured: Pre-dose (baseline) and at prespecified time points (e.g., 2, 4, 8, 24, and 48 hours post-dose).

  3. Change from Baseline in Platelet Reactivity

    Platelet function and hyperreactivity will be evaluated by measuring the change from baseline in platelet aggregation, specifically monitoring pathways potentially modulated by the intervention (e.g., high-throughput assessment of receptor-mediated platelet activation, including PEAR1-related pathways). Results will be reported as the percentage of maximal platelet aggregation.

    Measured: Pre-dose (baseline) and at prespecified time points (e.g., 2, 4, 24, and 48 hours post-dose).

Timeline

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

  1. First posted1 Jun 2026
  2. Study start20 Jun 2023
  3. Primary completion23 Jan 2025
  4. Study completion12 Mar 2026

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
627 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07618351
Sponsor's protocol ID
PKUFH-VTE-MASLD-2026
Status last verified
Apr 2026
First submitted
17 May 2026
Last updated
1 Jun 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Experimental: Food effect group and Active Comparator: Multiple dose group in people with Thrombosis and Cardiovascular Diseases, run by Peking University First Hospital 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 13 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 1 Jun 2026. 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 and severity of Adverse Events (AEs) and Serious Adverse Events (SAEs) (time frame: From the time of the first dose of the study drug until the end of the final safety follow-up visit (typically up to 7 to 14 days following the last dose 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 1 Jun 2026.

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