Study of Food Effects of VV261 Tablets in Healthy Trial Participants
Severe Fever With Thrombocytopenia Syndrome
What this study involves
The registry does not currently label this study as recruiting. Ask about its status before planning a screening visit.
- Study type
- Interventional
- Phase
- Phase 1
- Age range
- 18 years - 45 years
- Sex eligible
- All sexes
- Healthy volunteers
- Accepted
- Participants
- 15 Estimated
These are starting points, not an eligibility decision. The research team must review the full requirements.
About the research
This is a single-center, randomized, open-label, three-cycle, self-cross-over study on human pharmacokinetic characteristics under fasting, standard meal, and high-fat meal conditions.
Read the full description
This study is a single-center, randomized, open-label, three-cycle, self-crossed trial designed with a dosage of 600 mg and a washout period of 8 days. The study is expected to enroll 15 trial participants. The 15 participants will be randomly assigned to three groups:A, B, and C,with 5 participants in each group. In Group A, administration during the first cycle will be performed under fasting conditions; during the second cycle, under standard postprandial conditions; and during the third cycle, under high-fat postprandial conditions. In Group B, administration during the first cycle will be performed under high-fat postprandial conditions; during the second cycle, under fasting conditions; and during the third cycle, under standard postprandial conditions. In Group C, administration during the first cycle will be performed under standard postprandial conditions; during the second cycle, under high-fat postprandial conditions; and during the third cycle, under fasting conditions.
Who may be able to participate?
The list below is the sponsor’s full registry wording. It can include conditions, prior treatment, test results and other requirements. A match in search does not mean you qualify.
Inclusion Criteria:
1. Aged 18 to 45 years old, males or females;
2. Males weight no less than 50 kg, females weight no less than 45 kg, with body mass index of 19 to 26 kg/m\^2;
3. Vital signs examination, physical examination, laboratory examination ,electrocardiogram examination chest CT and B-ultrasound of liver, gallbladder, pancreas, spleen, kidney and thyroid results are normal or considered abnormal without clinical significance by the investigator;
4. Participants who are willing to take proper contraceptive methods during the study and within 3 months after the the last administration;
5. Participants who are able to understand and follow the study protocol and instructions; participants who have voluntarily decided to participate in this study, and sign the informed consent form.
Exclusion Criteria:
1. Participants with hypersensitivity to preparation or any of the excipients;
2. Participants with allergic constitution (such as asthma, urticaria, eczematous dermatitis and other allergic diseases), or have a history of drug or food allergy;
3. Participants with central nervous system, cardiovascular system, gastrointestinal, respiratory system, urinary, hematologic, or metabolic disorders that require medical intervention or other diseases (such as psychiatric history) that are not suitable for clinical trials;participants with a history of gastrointestinal conditions that may impair drug absorption (e.g., gastrectomy or small intestine resection, atrophic gastritis, gastrointestinal ulcers or perforations/fistulas, gastrointestinal bleeding, or obstruction);participants with previous surgery that may significantly affect the body's metabolic process or safety evaluation of the study drug (such as liver, gallbladder, kidney, splenectomy, gastrointestinal resection or excessive blood loss that affects drug absorption, distribution, metabolism)
4. Participants with a history of diseases affecting bone marrow hematopoietic function or reducing immunological function (including leukemia, myelodysplastic syndrome, aplastic anemia, systemic lupus erythematosus, rheumatoid arthritis, etc.) or treatment history (tumor chemotherapy or radiotherapy, use of immunosuppressants, etc.);
5. Participants with a history of spleen diseases;
6. If any of the following parameters were considered abnormal with clinical significance: white blood cell count, red blood cell count, platelet count, reticulocyte count, and absolute neutrophil count;
7. If any of the following parameters were considered abnormal with clinical significance: total bilirubin, alkaline phosphatase, alanine aminotransferase, and aspartate aminotransferase;
8. Participants who have received blood transfusion or used blood products within 3 months before screening or who have lost more than ≥400 mL of blood due to other reasons (excluding menstruation);
9. Participants who have participated in clinical trials and received drugs within 3 months before screening;
10. Participants who have taken any prescription drugs, over-the-counter drugs, Chinese herbal medicines or health products within 2 weeks before screening;
11. Participants who have received vaccination within the first 2 weeks before screening, or planned to receive any vaccine within 1 week after the end of the study;
12. Participants with a history of drug abuse within 1 year before screening or positive urine drug screening within 1 year before screening results (morphine, tetrahydrocannabinol, methamphetamine, dimethylene diphenazine , ketamine, and cocaine);
13. Participants who drink more than 14 standard units or at least twice a day per week within one year before screening,(one standard unit equals 200 mL of beer with 5% alcohol or 25 mL of white wine with 40% alcohol content or 85 mL of red wine with 12% alcohol) or participants with breath alcohol test \>0 mg/100 mL;
14. Participants who smok more than 5 cigarettes a day within one year before screening;
15. Participants who can't quit smoking or drinking during the trial period;
16. Participants who are positive for hepatitis B virus surface antigen, hepatitis C virus antibody, treponema pallidum antibody or human immunodeficiency virus antibody (Anti-HIV);
17. Participants who cannot tolerate blood collection with intravenous indwelling needles or blood fainting;
18. Participants with lactose intolerance or cannot comply with a uniform diet (such as special dietary requirements, intolerance of standard meals, etc.), Participants who have consumed excessive amounts of strong tea, coffee or caffeinated beverages in the 3 months before screening;
19. Participants with difficulty in swallowing tablets;
20. Pregnant or lactating women; participants whose spouses or partners intend to become pregnant, plan sperm or oocyte donation within 3 months after the last dose, or decline to use acceptable effective contraception;
21. The investigator believes that there are other unsuitable factors to participate this trial.
Treatment, groups and participation
The registry may describe treatments and study duration without a complete visit calendar. Ask the study team for the exact schedule, procedures, risks, costs and alternatives. Keep your usual care plan unless your treating clinician tells you otherwise.
- Assignment
- Random assignment
- Masking
- No masking
A group
Not reported in this registry record.
Drug: VV261
B group
Not reported in this registry record.
Drug: VV261
C group
Not reported in this registry record.
Drug: VV261
VV261 DRUG
A group:600 mg VV261, following an overnight fast of at least 10 hours for Period 1 ;600 mg VV261, administered 30 minutes after the start of a Standard meal for Period 2 ; 600 mg VV261, administered 30 minutes after the start of the high-fat meal for Period 3;
VV261 DRUG
B group:600 mg VV261, administered 30 minutes after the start of the high-fat meal for Period 1 ; 600 mg VV261, following an overnight fast of at least 10 hours for Period 2 ; 600 mg VV261, administered 30 minutes after the start of a Standard meal for Period 3;
VV261 DRUG
C group:administered 30 minutes after the start of a Standard meal for Period 1;600 mg VV261, administered 30 minutes after the start of the high-fat meal for Period 2 ; 600 mg VV261, following an overnight fast of at least 10 hours for Period 3 ;
What researchers are measuring
Outcome measures describe what is being studied. They are not proof that a treatment works.
Primary measures
Cmax
Time frame: Baseline to 96 hours after the last administration
Maximum observed plasma concentration
Tmax
Time frame: Baseline to 96 hours after the last administration
Time at which Cmax occurs
AUC0-t
Time frame: Baseline to 96 hours after the last administration
Area under the plasma concentration time curve from time zero to the last measurable concentration
AUC0-∞
Time frame: Baseline to 96 hours after the last administration
Area under the plasma concentration-time curve from time zero to infinity
t1/2
Time frame: Baseline to 96 hours after the last administration
Half life of elimination
CL/F
Time frame: Baseline to 96 hours after the last administration
Apparent clearance
mean Resident Time
Time frame: Baseline to 96 hours after the last administration
Mean Resident Time from time zero to infinity/the last
Vd/F
Time frame: Baseline to 96 hours after the last administration
Apparent volume of distribution during the terminal phase
Incidence of Treatment-Emergent Adverse Events
Time frame: Baseline to 7days after the last administration
Incidence of Treatment-Emergent Adverse Events
Review the complete result tables and limitations in the official record.
Open official results ↗Research locations (1)
The overall study status and a local site’s status can differ. Confirm that location’s availability before traveling.
1 locations
The First Affiliated Hospital of Anhui Medical UniversityHefei, Anhui, ChinaStatus unknown
Study team and timeline
- Lead sponsor
- Vigonvita Life Sciences
- Study start
- Nov 9, 2026 Estimated
- Primary completion
- Dec 30, 2026 Estimated
- Study completion
- Jan 30, 2027 Estimated
- First posted
- Nov 10, 2026 Actual
- Last updated
- Nov 10, 2026 Actual
Official study contacts
Official study title
Study of Food Effects of VV261 Tablets in Healthy Trial Participants
Ask Wellness Clinical Research
Your message goes to WCR, including when this study is run by another organization. WCR may offer general guidance but may not operate this trial, have access to its team or be able to enroll you.
Source: ClinicalTrials.gov API v2. Information is submitted by sponsors and investigators. NLM does not approve the safety or science of all listed studies. Registry disclaimer.
Retrieved: Nov 12, 2026 · Last registry update: Nov 10, 2026
