Pan African Clinical Trials Registry

South African Medical Research Council, South African Cochrane Centre
PO Box 19070, Tygerberg, 7505, South Africa
Telephone: +27 21 938 0506 / +27 21 938 0834 Fax: +27 21 938 0836
Email: pactradmin@mrc.ac.za Website: pactr.samrc.ac.za
Trial no.: PACTR202407572301048 Date of Approval: 11/07/2024
Trial Status: Registered in accordance with WHO and ICMJE standards
TRIAL DESCRIPTION
Public title A Phase III Open-Label Extension Study to Evaluate the Long-term Safety of Astegolimab in Patients with Chronic Obstructive Pulmonary Disease
Official scientific title A Phase III Open-Label Extension Study to Evaluate the Long-term Safety of Astegolimab in Patients with Chronic Obstructive Pulmonary Disease
Brief summary describing the background and objectives of the trial COPD was the third leading cause of death globally in 2019, causing approximately 6% of the world’s total deaths. Despite currently available treatment options including non-pharmacologic methods (e.g., smoking cessation and pulmonary rehabilitation) and pharmacologic therapies, slowing of disease progression and prevention of COPD exacerbations are still unmet needs. Alternative and more effective therapeutic approaches that will relieve symptoms in patients and alter the disease trajectory are urgently needed. The purpose of this open-label extension (OLE) study (i.e. GB43374) is to assess the long-term safety and to explore the efficacy of astegolimab, a mAb that selectively inhibits the interleukin-33 (IL-33) receptor ST2, in participants with COPD who have completed the 52-week placebo-controlled treatment period in either the Phase IIb (GB43311) or Phase III (GB44332) astegolimab study. The GB43311 and GB44332 studies are double-blinded, randomised-controlled trials and are the pivotal studies in the COPD programme (referred to as “parent studies”). The parent studies are primarily characterizing the efficacy, safety and PK of astegolimab in COPD patients. The transition of participants who complete the parent studies to the OLE study will enable the evaluation of longer treatment duration of astegolimab on safety, lung function, COPD exacerbations, and patient-reported outcomes (PROs). About 2000 patients are expected to enroll in the OLE study. Astegolimab 476 mg will be given every 2 weeks by subcutaneous injection, which is a continuation of the highest to-be-market dose from the parent studies. Since the primary objective of this OLE study is to assess the long-term safety of astegolimab, the higher dosing regimen (476 mg Q2W) will provide a robust exploration of potential safety signals in a larger number of patients at the to-be-marketed dose or higher. Evaluation of COPD exacerbations, lung function and PROs are all exploratory objectives.
Type of trial Non-Randomised
Acronym (If the trial has an acronym then please provide) ALNASA
Disease(s) or condition(s) being studied Respiratory
Sub-Disease(s) or condition(s) being studied
Purpose of the trial Treatment: Drugs
Anticipated trial start date 01/11/2024
Actual trial start date
Anticipated date of last follow up 30/06/2027
Actual Last follow-up date
Anticipated target sample size (number of participants) 2000
Actual target sample size (number of participants)
Recruitment status Not yet recruiting
Publication URL https://www.ClinicalTrials.gov
Secondary Ids Issuing authority/Trial register
GB43374 Sponsor
STUDY DESIGN
Intervention assignment Allocation to intervention If randomised, describe how the allocation sequence was generated Describe how the allocation sequence/code was concealed from the person allocating the participants to the intervention arms Masking If masking / blinding was used
Single Group Non-randomised Open-label(Masking Not Used)
INTERVENTIONS
Intervention type Intervention name Dose Duration Intervention description Group size Nature of control
Experimental Group Astegolimab 476 mg Q2W From 1 day to more than 51 months Subcutaneous (SC) every 2 weeks (Q2W) 2000
ELIGIBILITY CRITERIA
List inclusion criteria List exclusion criteria Age Category Minimum age Maximum age Gender
1. Signed Informed Consent Form. 2. Ability to comply with the requirements of the study protocol, according to the investigator’s best judgment. 3. Completion of the 52-week treatment period in either Study GB43311 or Study GB44332.For patients in Study GB43311 eligible for the additional treatment period: Continued participation in the additional treatment period up to local availability of the OLE is required. 4. For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraception. Women must remain abstinent or use contraceptive methods with a failure rate of < 1% per year during the treatment period and for 12 weeks after the final dose of astegolimab. A woman is considered to be of childbearing potential if she is postmenarchal, has not reached a postmenopausal state (at least 12 continuous months of amenorrhea with no identified cause other than menopause), and is not permanently infertile due to surgery (i.e., removal of ovaries, fallopian tubes, and/or uterus) or another cause as determined by the investigator (e.g., Müllerian agenesis). The definition of childbearing potential may be adapted for alignment with local guidelines or regulations. Examples of contraceptive methods with a failure rate of < 1% per year include bilateral tubal ligation, male sterilization, hormonal contraceptives that inhibit ovulation, hormone-release intrauterine devices, and copper intrauterine devices. The reliability of sexual abstinence should be evaluated in relation to the duration of the clinical trial and the preferred and usual lifestyle of the patient. Periodic abstinence (e.g., calendar, ovulation, symptothermal, or postovulation methods) and withdrawal are not adequate methods of contraception. If required per local guidelines or regulations, locally recognized adequate methods of contraception and information about the reliability of abstinence will be described in the local Informed Consent Form. 1. Withdrawal of consent and/or premature discontinuation from parent study 2. Any permanent discontinuation of study drug in parent study 3. Significant non-compliance in the parent study, specifically defined as missing scheduled visits, per investigator’s judgment 4. Pregnant or breastfeeding, or intending to become pregnant during the study or within 12 weeks after the final dose of study drug 5. Any new diagnosis of asthma according to the Global Initiative for Asthma guidelines or other accepted guidelines since enrolling in the parent study 6. Any new clinically significant pulmonary disease other than COPD since enrolling in the parent study 7.Treatment with a licensed respiratory biologic agent at the time of study entry 8. Initiation of treatment that is considered palliative since enrolling in the parent study 9. History of severe allergic reaction or anaphylactic reaction to any biologic agent or known hypersensitivity to any component of astegolimab 10. Any other new serious medical condition or abnormality in clinical laboratory tests that, in the investigator's judgment, precludes the patient's safe participation in and completion of the study since enrolling in the parent study 11. Any new unstable cardiac disease, myocardial infarction, or New York Heart Association Class III or IV heart failure since enrolling in the parent study 12. Any new abnormal ECG that is deemed clinically significant by the investigator, including complete left bundle branch block or second- or third-degree atrioventricular heart block since enrolling in the parent study 13. QT interval corrected through use of Fredericia’s formula (QTcF) > 450ms if patient is male of QTcF > 470ms if patient is female. For male or female patients with QRS > 120ms: QTcF < 480ms 80 and over: 80+ Year,Adult: 19 Year-44 Year,Aged: 65+ Year(s),Middle Aged: 45 Year(s)-64 Year(s) 40 Year(s) 90 Year(s) Both
ETHICS APPROVAL
Has the study received appropriate ethics committee approval Date the study will be submitted for approval Date of approval Name of the ethics committee
Yes 17/05/2024 JOOTRH ISERC
Ethics Committee Address
Street address City Postal code Country
P.O. Box 849 Kisumu 40100 Kenya
OUTCOMES
Type of outcome Outcome Timepoint(s) at which outcome measured
Primary Outcome To evaluate the long-term safety of astegolimab From Day 1 to 51 months, or until local commercial availability of astegolimab
Secondary Outcome To evaluate the efficacy of astegolimab From Day 1 to 51 months, or until local commercial availability of astegolimab
Secondary Outcome To evaluate health status utility scores of participants treated with astegolimab From Day 1 to 51 months, or until local commercial availability of astegolimab
Secondary Outcome To characterize the PK profile of astegolimab From Day 1 to 51 months, or until local commercial availability of astegolimab
Secondary Outcome To identify and/or evaluate biomarkers that are predictive of response to astegolimab (i.e., predictive biomarkers), are early surrogates of efficacy, are associated with progression to a more severe disease state (i.e., prognostic biomarkers), can provide evidence of astegolimab activity (i.e., PD biomarkers), or can increase the knowledge and understanding of disease biology and drug safety or pharmacokinetics. From Day 1 to 51 months, or until local commercial availability of astegolimab
RECRUITMENT CENTRES
Name of recruitment centre Street address City Postal code Country
Center for Research in Tropical Medicine and Community Development P.O. Box 01000-6387 Thika 6387 Kenya
University of Nairobi Clinical Research Centre Kenyatta National Hospital Respiratory Disease Unit Prof Mungai Road Off Wasawo Drive Off Riverside Drive Chiromo Campus University Of Nairobi, P.O. Box 19676-00202 Nairobi 00202 Kenya
KEMRI Mtwapa Clinical Annex P.O. Box 428-80108 Mtwapa 80108 Kenya
KEMRI CRDR Clinical Research Annex Kenyatta National Hospital Grounds, Off Hospital Road, Behind Government Chemist, P.O. BOX 47855-00100 Nairobi 00100 Kenya
Clinical Research Health Network CREAN Machakos Level 5 Hospital Site P.O. Box 19 -90100 Machakos 90100 Kenya
FUNDING SOURCES
Name of source Street address City Postal code Country
F. Hoffmann La Roche Ltd Grenzacherstrasse 124 Basel 4070 Switzerland
SPONSORS
Sponsor level Name Street address City Postal code Country Nature of sponsor
Primary Sponsor F. Hoffmann La Roche Ltd Grenzacherstrasse 124 Basel 4070 Switzerland Commercial Sector/Industry
COLLABORATORS
Name Street address City Postal code Country
CONTACT PEOPLE
Role Name Email Phone Street address
Principal Investigator Videlis Nduba vnduba@gmail.com +254790484654 KEMRI CRDR Kenyatta National Hospital Grounds Off Hospital Road Behind Government Chemist P.O. BOX 47855
City Postal code Country Position/Affiliation
Nairobi 00100 Kenya Principal Investigator
Role Name Email Phone Street address
Principal Investigator Jacqueline Mirera jacquline.mirera@crean-health.com +254715867708 Machakos Level 5 Hospital Site P.O. Box 19-90100 Machakos Kenya
City Postal code Country Position/Affiliation
Machakos 90100 Kenya Principal Investigator
Role Name Email Phone Street address
Principal Investigator Jesse Gitaka jgitaka@mku.ac.ke +254722425613 P.O. Box 6387, Thika, Kenya
City Postal code Country Position/Affiliation
Thika 00100 Kenya Principal Investigator
Role Name Email Phone Street address
Principal Investigator Teresa Kinyari tmwendwa@uonbi.ac.ke +254707028067 Kenyatta National Hospital Respiratory Disease Unit Prof Mungai Road Off Wasawo Drive Off Riverside Drive Chiromo Campus University of Nairobi, P.O. Box 19676
City Postal code Country Position/Affiliation
Nairobi 00202 Kenya Principal Investigator
Role Name Email Phone Street address
Principal Investigator Mary Matilu inzianimatilu@gmail.com +254722523370 KEMRI Mtwapa Clinical Annex P.O. Box 428-80108
City Postal code Country Position/Affiliation
Mtwapa 80108 Kenya Principal Investigator
Role Name Email Phone Street address
Public Enquiries Videlis Ndube vnduba@gmail.com +254724522474 Kenyatta National Hospital Grounds, Off Hospital Road, Behind Government Chemist, P.O. BOX 47855-00100
City Postal code Country Position/Affiliation
Nairobi 00100 Kenya Principal Investigator
Role Name Email Phone Street address
Scientific Enquiries Videlis Nduba vnduba@gmail.com +254724522474 Kenyatta National Hospital Grounds, Off Hospital Road, Behind Government Chemist, P.O. BOX 47855-00100
City Postal code Country Position/Affiliation
Nairobi 00100 Kenya Principal Investigator
REPORTING
Share IPD Description Additional Document Types Sharing Time Frame Key Access Criteria
Yes The Sponsor will comply with the requirements for publication of study results. All of the study data will be labelled with a participant identification (ID) number that is unique to the participants and not related to or derived from information that identifies the participants (such as name or any other personally identifying information). After this study is over, a brief report of the overall results will be prepared for the general public. The study results may also be shared with scientific journals and the scientific community. Clinical Study Report,Informed Consent Form,Statistical Analysis Plan,Study Protocol Will be shared upon study completion. No end date. Open data analysis is permitted
URL Results Available Results Summary Result Posting Date First Journal Publication Date
https://www.ClinicalTrials.gov No
Result Upload 1: Result Upload 2: Result Upload 3: Result Upload 4: Result Upload 5:
Result URL Hyperlinks Link To Protocol
Result URL Hyperlinks
Changes to trial information