NCT06942299

Brief Summary

This is a randomized, double-blind, placebo-controlled, multicenter, phase II study to be conducted in adults hospitalized with RSV infection in China. The main objectives of this study are to investigate the safety, pharmacokinetics and efficacy of AK0529 in adult RSV patients.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
25

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Jul 2023

Shorter than P25 for phase_2

Geographic Reach
1 country

42 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 24, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

July 20, 2023

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 28, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 28, 2024

Completed
10 months until next milestone

First Posted

Study publicly available on registry

April 24, 2025

Completed
Last Updated

April 24, 2025

Status Verified

April 1, 2025

Enrollment Period

11 months

First QC Date

March 24, 2023

Last Update Submit

April 16, 2025

Conditions

Keywords

Adult patient with RSV infectionHigh-risk diseaseAK0529

Outcome Measures

Primary Outcomes (1)

  • Incidence and severity of AE and SAE of subjects during the study period

    An Adverse event (AE) was any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. An SAE was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly/birth defect, or another important medical event.

    Baseline up to 28 days

Secondary Outcomes (18)

  • Change from baseline in clinical improvement score of subjects at each visit after treatment by clinical improvement scale

    Baseline up to 28 days

  • Change from baseline in RiiQ symptoms of subjects at each visit after treatment measured by RiiQ questionnaire

    Baseline up to 28 days

  • Changes from baseline in the total score of RSV Symptom of subjects at each visit after treatment using RSV Symptom Score Composite Scale

    Baseline up to 28 days

  • Changes from baseline in the RSV VL (viral load) of subjects at each visit after treatment

    Baseline up to 28 days

  • Area under the curve (AUCE, last) of RSV Viral Load from baseline to the last measurement

    Baseline up to 28 days

  • +13 more secondary outcomes

Study Arms (3)

Active drug: AK0529 fasting

EXPERIMENTAL

The participants will receive AK0529 twice daily for 5 days from D1 to D5.

Drug: AK0529

Active drug: AK0529 with meal

EXPERIMENTAL

The participants will receive AK0529 twice daily for 5 days from D1 to D5.

Drug: AK0529

Placebo

PLACEBO COMPARATOR

Placebo

Drug: Placebo

Interventions

AK0529DRUG

Active Substance: AK0529, Pharmaceutical Form: Enteric pellets, Route of Administration: Oral, fasting

Active drug: AK0529 fasting

Active Substance: Placebo, Pharmaceutical Form: Enteric pellets, Route of Administration: Oral with meal or fasting

Placebo

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female patients of any ethnicity with an age of 18-85 years.
  • Diagnosis of RSV infection by any virological means within 36 hours preceding initial dosing.
  • At least one of the following high-risk diseases or states for RSV infection
  • Asthma or chronic lung disease (such as COPD or cystic fibrosis),
  • immunocompromised,
  • Heart disease (such as congenital heart disease, congestive, heart failure, or coronary artery disease), except high blood, pressure without heart-related symptoms,
  • Chronic kidney disease,
  • Age ≥65 years old.
  • With at least 1 new onset respiratory infection symptom or exacerbation of existing respiratory symptoms (respiratory symptoms include: sore throat, nasal congestion, runny nose, sneezing, coughing, wheezing, sputum production, shortness of breath), and any individual score is 2 or moderate.
  • Onset of RSV infection symptoms should be ≤ 7 days.

You may not qualify if:

  • days for drugs with potential antiviral effects on RSV such as ordinary interferon, 8 days for long-acting interferon, and 35 days for ribavirin for 5 half-lives before expected administration.
  • Prohibited medicine are being used or planned to be used during the study treatment periods.
  • Severe gastrointestinal diseases that affect the absorption of study drugs (such as vomiting, malabsorption syndrome, short bowel syndrome due to necrotizing enterocolitis, etc.).
  • Received or planned to have bone marrow transplantation, stem cell transplantation or solid organ transplantation within 1 year.
  • Patients with malignant tumors who had surgery within recent 6 months and/or requiring radiotherapy, chemotherapy and biological immunotherapy.
  • Patients with autoimmune diseases who are in the induction treatment.
  • HIV infection, CD4 count\< 350 cells/mm3 with opportunistic infection and need treatment.
  • Other patients who are judged by the investigator to be unsuitable for participating in the study, such as acute/chronic heart, lung, liver, kidney, rheumatic immunity, psychiatric, blood and other diseases in the unstable period.
  • History of drug abuse within 12 months prior to screening.
  • Allergy to the investigational drug or its component.
  • Female patients with positive pregnancy test or breastfeeding.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (42)

The Second Perople's Hospital of Hefei

Hefei, Anhui, China

Location

Huangshan City People's Hospital

Huangshan City, Anhui, China

Location

Peking University Shougang Hospital

Beijing, Beijing Municipality, 100000, China

Location

Beijing Hospital

Beijing, Beijing Municipality, 100005, China

Location

China-Japan Friendship Hospital

Beijing, Beijing Municipality, 100029, China

Location

The First Affiliated Hospital of Fujian Medical University

Fuzhou, Fujian, 350004, China

Location

Quanzhou First Hospital

Quanzhou, Fujian, China

Location

Gansu People's Hospital

Lanzhou, Gansu, China

Location

The First Affiliated Hospital of Guangzhou Medical University

Guangzhou, Guangdong, 510120, China

Location

Guangzhou Panyu Central Hospital

Guangzhou, Guangdong, 511486, China

Location

Longgang Central Hospital of Shenzhen

Shenzhen, Guangdong, 518116, China

Location

Shunde Hospital of Southern Medical University

Shunde, Guangdong, 528399, China

Location

Central People's Hospital of Zhanjiang

Zhanjiang, Guangdong, 524037, China

Location

The Second Nanning People's Hospital

Nanning, Guangxi, China

Location

Guizhou People's Hospital

Guiyang, Guizhou, China

Location

Hebei Chest Hospital

Shijiazhuang, Hebei, China

Location

Harbin Medical University Affiliated Fourth Hospital

Harbin, Heilongjiang, China

Location

The Second Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine

Harbin, Heilongjiang, China

Location

The Sixth People's Hospital of Zhengzhou

Zhengzhou, Henan, China

Location

Wuhan Fourth Hospital

Wuhan, Hubei, China

Location

Xiangyang Center Hospital

Xiangyang, Hubei, China

Location

Yueyang Central Hospital

Yueyang, Hunan, China

Location

Changzhou Second People's Hospital

Changzhou, Jiangsu, 213004, China

Location

Jiangsu Provincial Hospital of Chinese Medicine

Nanjing, Jiangsu, 210004, China

Location

The First Affilited Hospital of Nanchang University

Nanchang, Jiangxi, China

Location

Jilin Province People's Hospital

Changchun, Jilin, China

Location

The First Clinical College / Liaoning Hospital of TCM

Shenyang, Liaoning, China

Location

Inner Mongolia Autonomous Region People's Hospital

Hohhot, Neimenggu, China

Location

The Affiliated Hospital of Qingdao University

Qingdao, Shandong, China

Location

Weifang NO.2 People's Hospital

Weifang, Shandong, China

Location

Tongji Hospital of Tongji University

Shanghai, Shanghai Municipality, 200065, China

Location

Yueyang Hospital Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine

Shanghai, Shanghai Municipality, 200437, China

Location

Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine

Shanghai, Shanghai Municipality, 201203, China

Location

Sencond Hospital of Shanxi Medical University

Taiyuan, Shanxi, China

Location

The First Affiliated Hospital of Xi'an Medical University

Xi’an, Shanxi, China

Location

Chengdu Seventh People's Hospital

Chengdu, Sichuan, 610044, China

Location

The First Hospital of Kunming

Kunming, Yunnan, China

Location

The First People's Hospital of Yunnan Province

Kunming, Yunnan, China

Location

Zhejiang Provincial People's Hospital

Hangzhou, Zhejiang, 314408, China

Location

Ningbo First Hospital

Ningbo, Zhejiang, 315010, China

Location

Shaoxing People's Hospital

Shaoxing, Zhejiang, 312035, China

Location

Taizhou Hospital of Zhejiang Province

Taizhou, Zhejiang, 317099, China

Location

MeSH Terms

Conditions

Respiratory Syncytial Virus Infections

Interventions

ziresovir

Condition Hierarchy (Ancestors)

Pneumovirus InfectionsParamyxoviridae InfectionsMononegavirales InfectionsRNA Virus InfectionsVirus DiseasesInfections

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Double-Blind
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This clinical study is a randomized placebo controlled parallel multi-center phase II trial.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 24, 2023

First Posted

April 24, 2025

Study Start

July 20, 2023

Primary Completion

June 28, 2024

Study Completion

June 28, 2024

Last Updated

April 24, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

Locations