This study is open to adults with advanced small cell lung cancer (SCLC). The purpose of this study is to find out if a study medicine called obrixtamig plus standard treatment (atezolizumab, carboplatin, and etoposide) improves survival when compared to standard treatment alone. Obrixtamig is an antibody-like molecule that may help the immune system fight cancer. Another purpose of the study is to test a medical device being developed to measure levels of the tumour marker DLL3. Participants are put into 2 groups randomly, which means by chance. One group receives obrixtamig and standard treatment. The other group receives standard treatment without obrixtamig. All treatments are given as infusions into a vein. Participants are in the study for up to 3 years. During this time, they visit the study site regularly. Participants in the group receiving obrixtamig stay overnight at the study site following the first 2 obrixtamig treatments. At the visits, doctors check the size of the tumour(s). The results are compared between the 2 groups to see whether the treatment works. The doctors also regularly check participants' health and take note of any unwanted effects.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
670
obrixtamig
atezolizumab
carboplatin
etoposide
Infirmary Cancer Care
Mobile, Alabama, United States
NOT_YET_RECRUITINGUniversity of Arkansas for Medical Sciences
Little Rock, Arkansas, United States
NOT_YET_RECRUITINGBioresearch Partner - Hialeah Hospital
Hialeah, Florida, United States
NOT_YET_RECRUITINGEmory University
Atlanta, Georgia, United States
NOT_YET_RECRUITINGOverall survival (OS)
OS, defined as the time from randomisation until death from any cause
Time frame: Up to 36 months
Progression free survival (PFS)
PFS, defined as the time from randomisation until the earliest date of tumour progression according to the Response Evaluation Criteria in Solid Tumours (RECIST) version 1.1 based on investigator assessments or death from any cause
Time frame: Up to 36 months
Change From Baseline in Selected Disease Symptoms Included in the European Organization for Research and Treatment of Lung Cancer Quality of Life Questionnaire (EORTC-QLQ-LC13)
EORTC QLQ-LC13: European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire lung cancer-specific 13-item questionnaire module (QLQ-LC13) includes one multi-item scale (dyspnoea, based on three items) and ten single-item measures capturing symptoms such as coughing, haemoptysis, pain, and treatment-related toxicities including sore mouth, dysphagia, and peripheral neuropathy. All QLQ-LC13 items are scored on a 4-point Likert scale (1 = "not at all," 4 = "very much"). All QLQ-LC13 scores range from 0 to 100, with higher scores indicating greater symptom burden or more severe problems
Time frame: At baseline and up to 1 year
Overall response (OR)
OR, defined as a best overall response of complete response (CR) or partial response (PR) according to Response Evaluation Criteria in Solid Tumours (RECIST) 1.1 (based on investigator assessments) from the date of randomisation until the earliest date of disease progression, death, last evaluable tumour assessment before start of subsequent anti-cancer therapy, lost to follow-up, or withdrawal of consent
Time frame: Up to 36 months
Occurrence of treatment-emergent Cytokine Release Syndrome (CRS) during the on-treatment period
Time frame: Up to 36 months
Occurrence of treatment-emergent Immune effector cell-associated neurotoxicity syndrome (ICANS) during the on-treatment period
Time frame: Up to 36 months
Occurrence of treatment-emergent adverse events (AEs) leading to trial medication discontinuation during the on-treatment period
Time frame: Up to 36 months
Occurrence of treatment-emergent AEs leading to trial medication dose delay during the on-treatment period
Time frame: Up to 36 months
Occurrence of treatment-emergent AEs leading to trial medication dose reduction during the on-treatment period
Time frame: Up to 36 months
Time to deterioration (TTD), defined as time from randomisation to deterioration maintained for 2 consecutive assessments or 1 assessment followed by death from any cause within 3 weeks
Assessments are a composite of the following European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire (QLQ EORTC) scores: * Dyspnea as measured by EORTC-QLQ-C30 and EORTC-QLQ-LC13 * Chest pain as measured by EORTC-QLQ-LC13 * Cough as measured by EORTC-QLQ-LC13 These questionnaires request scores on global health status, functioning, symptoms, as well as single items to assess dyspnoea, insomnia, appetite loss, constipation, diarrhoea and financial difficulties. All scores range from 0 to 100. For scores regarding functioning and global quality of life, higher scores represent better functioning and better quality of life. For scores regarding symptom scales higher scores indicate greater symptom burden.
Time frame: Up to 3 weeks
Change From Baseline in Symptom Severity as Measured by scales of the European Organisation for Research and Treatment of Cancer (EORTC) QLQ-LC13
EORTC QLQ-LC13: EORTC Quality of Life Questionnaire lung cancer-specific 13-item questionnaire module (QLQ-LC13) includes one multi-item scale (dyspnoea, based on three items) and ten single-item measures capturing symptoms such as coughing, haemoptysis, pain, and treatment-related toxicities including sore mouth, dysphagia, and peripheral neuropathy. All QLQ-LC13 items are scored on a 4-point Likert scale (1 = "not at all," 4 = "very much"). All QLQ-LC13 scores range from 0 to 100, with higher scores indicating greater symptom burden or more severe problems
Time frame: At baseline and up to 1 year
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Norton Cancer Institute, Downtown
Louisville, Kentucky, United States
NOT_YET_RECRUITINGUniversity of Maryland School of Medicine
Baltimore, Maryland, United States
NOT_YET_RECRUITINGVeterans Affairs Ann Arbor Healthcare System
Ann Arbor, Michigan, United States
NOT_YET_RECRUITINGUniversity of Nebraska Medical Center
Omaha, Nebraska, United States
NOT_YET_RECRUITINGCleveland Clinic
Cleveland, Ohio, United States
NOT_YET_RECRUITINGAHN Cancer Institute - Allegheny General
Pittsburgh, Pennsylvania, United States
NOT_YET_RECRUITING...and 222 more locations