NCT06525272

Brief Summary

Primary Objectives: To evaluate the safety and tolerability of single and multiple ascending doses of OsrhCT administered intrathoracically in patients with pleurisy, and to explore the DLT, MTD, and recommended effective dose of OsrhCT. Secondary Objectives: To evaluate the preliminary efficacy of single and multiple intrathoracic doses of OsrhCT. Population: Patients diagnosed with pleurisy requiring chest tube drainage. Investigational Products: Investigational Drug: Recombinant Human Chymotrypsin (OsrhCT), provided by Wuhan Healthgen Biotechnology Corporation, 4,000U/vial, freeze-dried powder, stored at 2-8°C. Placebo: Placebo for Recombinant Human Chymotrypsin (OsrhCT), provided by Wuhan Healthgen Biotechnology Corporation, freeze-dried powder, stored at 2-8°C. Study Design: The study comprises two parts: Single Ascending Dose (SAD) and Multiple Ascending Dose (MAD), both employing a multicenter, randomized, double-blind, and placebo-controlled design. Sample Size: A total of 72 subjects (both male and female) are expected to be enrolled in this trial, including 48 subjects for single-dose administration and 24 subjects for multiple-dose administration.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
72

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Jul 2024

Geographic Reach
1 country

4 active sites

Status
not yet recruiting

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

Study Start

First participant enrolled

July 1, 2024

Completed
17 days until next milestone

First Submitted

Initial submission to the registry

July 18, 2024

Completed
11 days until next milestone

First Posted

Study publicly available on registry

July 29, 2024

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

July 29, 2024

Status Verified

July 1, 2024

Enrollment Period

1 year

First QC Date

July 18, 2024

Last Update Submit

July 24, 2024

Conditions

Keywords

OsrhCTRecombinant Human Chymotrypsin

Outcome Measures

Primary Outcomes (1)

  • Safety Outcome Measures

    Incidence of AE

    Single Ascending Dose (SAD) Study:7days;Multiple Ascending Dose (MAD) Study:30days

Secondary Outcomes (4)

  • Efficacy Outcome Measures:Changes in pleural opacity area on chest X-ray

    7 days

  • Efficacy Outcome Measures:Relative change in pleural opacity area on chest X-ray

    7 days

  • Efficacy Outcome Measures:Drainage of pleural effusion

    7 days

  • Efficacy Outcome Measures:Changes in inflammatory markers

    7 days

Study Arms (2)

Recombinant Human Chymotrypsin(OsrhCT)

EXPERIMENTAL

Recombinant Human Chymotrypsin (OsrhCT), freeze-dried powder, 4,000U/vial Single Ascending Dose (SAD) Study: 20ml of the prepared drug will be injected into the thoracic cavity through a chest tube.There are six dose groups (2000U, 4000U, 8000U, 12000U, 16000U, 20000U),each subject can only receive administration in one dose group, and repeated administration is not allowed. Multiple Ascending Dose (MAD) Study: 20ml of the prepared drug will be injected into the thoracic cavity through a chest tube.three dose groups (low, medium, and high) will be selected for multiple dosing. Each subject will receive only one dose group and no repeat dosing.

Drug: Recombinant Human Chymotrypsin(OsrhCT)

Placebo for Recombinant Human Chymotrypsin

PLACEBO COMPARATOR

Placebo for Recombinant Human Chymotrypsin (OsrhCT), freeze-dried powder Single Ascending Dose (SAD) Study: 20ml of the prepared drug will be injected into the thoracic cavity through a chest tube.There are six dose groups ,each subject can only receive administration in one dose group, and repeated administration is not allowed. Multiple Ascending Dose (MAD) Study: 20ml of the prepared drug will be injected into the thoracic cavity through a chest tube.three dose groups (low, medium, and high) will be selected for multiple dosing. Each subject will receive only one dose group and no repeat dosing.

Drug: Placebo for Recombinant Human Chymotrypsin(OsrhCT)

Interventions

Recombinant Human Chymotrypsin (OsrhCT), provided by Wuhan Healthgen Biotechnology Corporation, 4,000U/vial, freeze-dried powder, 20ml of the prepared drug will be injected into the thoracic cavity through a chest tube.

Also known as: Freeze-dried Powder of Recombinant Human Chymotrypsin(OsrhCT)
Recombinant Human Chymotrypsin(OsrhCT)

Placebo for Recombinant Human Chymotrypsin (OsrhCT), provided by Wuhan Healthgen Biotechnology Corporation, freeze-dried powder, stored at 2-8°C.

Also known as: Freeze-dried Powder of Placebo for Recombinant Human Chymotrypsin(OsrhCT)
Placebo for Recombinant Human Chymotrypsin

Eligibility Criteria

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

You may qualify if:

  • Voluntary participation with signed informed consent;
  • Aged 18-65 years (inclusive), male or female;
  • Clinical diagnosis of pleurisy (parapneumonic pleural effusion, empyema, tuberculous pleurisy, etc.);
  • Patients with pleural effusion confirmed by chest ultrasound or CT examination and requiring chest tube drainage as assessed by the study physician, and the ultrasound report or CT image within one month shows that there are fibrous bands or encapsulated or septated effusions in the thoracic cavity;
  • Patients who cannot be fully drained after open drainage for ≥ 3 hours after chest tube drainage and meet the following conditions: The maximum depth of pleural effusion detected by ultrasound is ≥ 2 cm;
  • Women of childbearing potential must agree to use contraception (such as intrauterine device, contraceptive pills or condoms) during the study and within 3 months after the end of the study; men must agree to use effective contraception during the study and within 3 months after the end of study period.

You may not qualify if:

  • Known allergy to the investigational drug or its excipients;
  • Known or clinically highly suspected malignant pleural effusion;
  • Received intrathoracic injection of fibrinolytic drugs (such as urokinase, streptokinase, and alteplase) within 1 month prior to enrollment;
  • History of lung resection surgery on the same side as the chest tube drainage;
  • Evidence of abdominal lesions (e.g., pancreatic cyst or renal cyst) communicating with the pleura;
  • Currently using systemic corticosteroids and unable to discontinue;
  • HIV antibody positive;
  • History of organ transplantation;
  • Severe cardiovascular, cerebrovascular, hematologic diseases, or malignancies;
  • Abnormal laboratory values: hemoglobin \<80g/L, total bilirubin \>2×ULN (upper limit of normal), ALT \>2.5×ULN, AST \>2.5×ULN, creatinine \>2×ULN; coagulation function APTT \>1.5×ULN, or INR \>1.5;
  • Pregnant or breastfeeding women;
  • Subjects who have participated in any drug clinical trial and received treatment within the last 3 months (excluding diagnostic skin test);
  • Any other conditions deemed unsuitable for the study by the investigator.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

Anhui Chest Hospital

Hefei, Anhui, 230031, China

Location

Shenzhen Third People's Hospital

Shenzhen, Guangdong, 518112, China

Location

Wuhan Pulmonary Hospital

Wuhan, Hubei, 430000, China

Location

Changsha Central Hospital

Changsha, Hunan, 410004, China

Location

MeSH Terms

Conditions

Pleurisy

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsPleural DiseasesRespiratory Tract Diseases

Study Officials

  • Shuihua Lu, MD

    Shenzhen Third People's Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Xuerong Chen, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Double (Participant,Investigator)
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Model Details: The study comprises two parts: Single Ascending Dose (SAD),There are six dose groups (2000U, 4000U, 8000U, 12000U, 16000U, 20000U) and Multiple Ascending Dose (MAD),There are three dose groups (Low (TBD),Medium (TBD),High (TBD) ) both employing a multicenter, randomized, double-blind, and placebo-controlled design. Per dose group (6 receiving intrathoracic injection of OsrhCT and 2 receiving intrathoracic injection of placebo).
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 18, 2024

First Posted

July 29, 2024

Study Start

July 1, 2024

Primary Completion

July 1, 2025

Study Completion

December 1, 2025

Last Updated

July 29, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations