| Protocol No: | ECCT/24/06/02 | Date of Protocol: | 03-04-2023 |
| Study Title: | A PHASE III OPEN-LABEL EXTENSION STUDY TO EVALUATE THE LONG-TERM SAFETY OF ASTEGOLIMAB IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE |
| Study Objectives: | Primary Objective
Exploratory Objectives
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| Laymans Summary: |
Chronic Obstructive Pulmonary Disease (COPD) is a long-term lung disease that mostly affects older people who have smoked cigarettes in the past or have been exposed to or breathed in other harmful particles for a long time, like smoke from biomass fuels. It is the third leading cause of death worldwide, and the number of people who have it is growing around the world. Even though smoking cigarettes has always been the biggest risk factor for COPD, there is clear evidence that non-smokers can also get the disease.
The risk of COPD goes up with age, and most people with COPD are 40 years old or older. Men are more likely to have COPD than women. COPD is a disease that affects different people in different ways and gets worse over time. The progression of the disease is strongly linked to thickening and narrowing of the airway walls, reducing the lungs' ability to stretch and reducing airflow. Patients withn COPD will present with some of the following signs and symptoms; Cough, shortness of breath and production of a thick mixture of saliva and mucus (sputum) coughed from the airways.
As symptoms worsen and the disease progresses, the likelihood of death increases. Current existing treatments have been unable to significantly slow down the progression of the disease and prevent episodes of worsened symptoms. New, more effective ways to treat patients that will relieve their symptoms and change the course of the disease are urgently needed.
Astegolimab is a drug that is under investigation for the treatment of patients with COPD. It has been noted to potentially prevent the worsening of symptoms and improve lung function and quality of life for the respective patient populations. This study will look at the long term safety and how well astegolimab works in people with COPD who have used the drug for 1 year in a previous study.
If found to be safe and efficacious, astegolimab will be recommended for market registration to make it commercially available locally so that people with COPD can have access to the drug in the market, subject to approval by relevant health authorities.
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| Abstract of Study: |
BACKGROUND
Chronic Obstructive Pulmonary Disease (COPD) was the third leading cause of death worldwide in 2019, accounting for approximately 6% of all deaths. Chronic obstructive pulmonary disease is distinguished by persistent respiratory symptoms and restricted airflow due to airway and/or alveolar abnormalities. COPD exacerbation, defined as an acute worsening of respiratory symptoms requiring additional therapy, is one of the key indicators of disease activity. Chronic obstructive pulmonary disease exacerbations represent the largest burden in terms of healthcare utilization, patient morbidity, and risk of mortality. Current COPD treatment options include non-pharmacologic and pharmacologic measures, which are insufficient to prevent symptoms or slow disease progression. Other safe and efficacious treatment modalities are desperately needed.
STUDY RATIONALE
The purpose of this study is to assess the long-term safety and to explore the efficacy of astegolimab, a human IgG2 mAb that selectively inhibits the interleukin-33 (IL-33) receptor ST2, in participants with chronic obstructive pulmonary disease (COPD) who have completed the 52-week placebo-controlled treatment period in Phase III (GB44332) astegolimab study. The open-label design will allow assessment of the impact of longer treatment duration of astegolimab on safety, lung function, COPD exacerbations, and patient-reported outcomes (PROs).
OBJECTIVES AND ENDPOINTS
Primary Objective:
To evaluate the long-term safety of astegolimab
Corresponding Endpoint:
Incidence and severity of adverse events, with severity determined according to the DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (hereafter referred to as the DAIDS Toxicity Grading Scale), with slight modifications for clarity and for alignment with internal practices
OVERALL DESIGN AND STUDY POPULATION
This is a Phase III multicenter, single group open-label extension (OLE) study to evaluate the long-term safety and explore the efficacy of astegolimab (RO7187807) in combination with standard of care (SOC). The study population will be adults aged 40-90 years (at time of consent in parent study), with Chronic obstructive pulmonary disease (COPD). Approximately 2,000 participants with COPD are expected to be enrolled globally, with the Mtwapa site targeting minimum of five patients with COPD who have completed the 52-week treatment period in Study GB44332 and fulfill the eligibility criteria for the OLE, for enrolment.
Patients who have discontinued treatment in the parent study will not be eligible to enroll into the OLE.
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