NCT07039669

Brief Summary

The objective of the study was to evaluate the efficacy and safety of 611 in Chinese adults with moderate to severe COPD.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
594

participants targeted

Target at P75+ for phase_3

Timeline
30mo left

Started Jul 2025

Typical duration for phase_3

Geographic Reach
1 country

4 active sites

Status
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 Progress25%
Jul 2025Nov 2028

First Submitted

Initial submission to the registry

June 5, 2025

Completed
21 days until next milestone

First Posted

Study publicly available on registry

June 26, 2025

Completed
20 days until next milestone

Study Start

First participant enrolled

July 16, 2025

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2028

Expected
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2028

Last Updated

November 18, 2025

Status Verified

October 1, 2025

Enrollment Period

3.1 years

First QC Date

June 5, 2025

Last Update Submit

November 17, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Annualized rate of moderate or severe COPD Exacerbations

    Moderate exacerbations were recorded by the Investigator and defined as acute exacerbation of COPD (AECOPD) event that required systemic corticosteroids with/without antibiotics. Severe exacerbations were also recorded by the Investigator and defined as AECOPD event that required hospitalization or observation for \>24 hours in an emergency department/urgent care facility or resulted in death.

    Baseline to Week 52

Secondary Outcomes (12)

  • Change from baseline in pre-bronchodilator FEV1 at Week 24

    Baseline, Week 24

  • Time to first Moderate or severe COPD exacerbation

    Baseline to Week 52

  • Annualized rate of severe COPD Exacerbations

    Baseline to Week 52

  • Change from baseline in pre-bronchodilator FEV1

    Baseline to Week 52

  • Change from baseline in SGRQ scores

    Baseline to Week 52

  • +7 more secondary outcomes

Study Arms (2)

611

EXPERIMENTAL

611 Q2W, subcutaneous (SC) injection

Drug: 611

placebo

PLACEBO COMPARATOR

placebo Q2W, subcutaneous (SC) injection

Drug: Placebo

Interventions

611DRUG

611 subcutaneous (SC) injection

611

placebo Q2W, subcutaneous (SC) injection

placebo

Eligibility Criteria

Age40 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Able to understand and follow the protocol requirements, and give written informed consent prior to participation voluntarily in the study.
  • Male or female adults ages 40 to 85 years old when signing the informed consent.
  • Current or former smokers with a smoking history of ≥10 pack-years.
  • Documented diagnosis of COPD for at least 12 months prior to enrolment
  • Moderate-to-severe COPD.
  • Documented history of ≥ 2 moderate or ≥ 1 severe COPD exacerbations within 12 months prior to enrolment.
  • Background triple therapy (ICS + LABA + LAMA) for 3 months prior to randomization with a stable dose of medication for ≥ 1 month prior to randomization; Double therapy (LABA + LAMA) allowed if ICS is contraindicated.
  • Female subjects of reproductive age (and their male partners) and male subjects (and their female partners) must use highly effective contraception throughout the study period and for at least 3 months after the last dose. The subjects had no plans to pregnancy, donate sperm or donate egg during the whole study period and for at least 3 months after the last dose.

You may not qualify if:

  • Presence of a known pre-existing, clinically important lung condition other than COPD.
  • A current diagnosis of asthma or history of asthma according to the Global Initiative for Asthma (GINA) guidelines or other accepted guidelines.
  • Diagnosis of α-1 anti-trypsin deficiency.
  • Presence of an active autoimmune disease.
  • Subjects who have any malignant tumors within 5 years prior to enrollment.
  • Known, pre-existing other concurrent clinically significant medical conditions that are uncontrolled.
  • Diagnosed active parasitic infection, suspected or high risk of parasitic infection.
  • Subjects who have active Hepatitis B, Hepatitis C or HIV infections as determined by positive results at Screening.
  • Known with allergic or intolerant to any biological product.
  • Any reason which, in the opinion of investigator, would prevent the subject from participating in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

China-Japan Friendship Hospital

Beijing, Beijing Municipality, 100029, China

NOT YET RECRUITING

Shenzhen People's Hospital

Shenzhen, Guangdong, 518020, China

RECRUITING

Jiangsu Province Hospital

Nanjing, Jiangsu, 212028, China

RECRUITING

ZheJiang Provincial People's Hospital

Hangzhou, Zhejiang, 310014, China

NOT YET RECRUITING

MeSH Terms

Conditions

Lung DiseasesPulmonary Disease, Chronic Obstructive

Interventions

entacapone

Condition Hierarchy (Ancestors)

Respiratory Tract DiseasesLung Diseases, ObstructiveChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Qinghong Zhou, Master

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 5, 2025

First Posted

June 26, 2025

Study Start

July 16, 2025

Primary Completion (Estimated)

September 1, 2028

Study Completion (Estimated)

November 1, 2028

Last Updated

November 18, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will not share

Locations