A Phase III, Open-Label Study of Maintenance Lurbinectedin in Combination With Atezolizumab Compared With Atezolizumab in Participants With Extensive-Stage Small-Cell Lung Cancer (IMforte)
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ClinicalTrials.gov Identifier: NCT05091567 |
Recruitment Status :
Recruiting
First Posted : October 25, 2021
Last Update Posted : May 30, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Small-Cell Lung Cancer | Drug: Atezolizumab Drug: Lurbinectedin Drug: Carboplatin Drug: Etoposide | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 690 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase III, Randomized, Open-Label, Multicenter Study of Lurbinectedin in Combination With Atezolizumab Compared With Atezolizumab as Maintenance Therapy in Participants With Extensive-Stage Small-Cell Lung Cancer (ES-SCLC) Following First-Line Induction Therapy With Carboplatin, Etoposide and Atezolizumab |
Actual Study Start Date : | November 18, 2021 |
Estimated Primary Completion Date : | April 18, 2025 |
Estimated Study Completion Date : | March 6, 2026 |

Arm | Intervention/treatment |
---|---|
Experimental: Arm A: Atezolizumab+Lurbinectedin
Induction phase: participants will receive standard of care atezolizumab on Day 1 of each 21-day cycle in combination with carboplatin on Day 1 and etoposide on Days 1, 2, and 3 of each 21-day cycle for 4 cycles. Maintenance phase: participants will receive atezolizumab on Day 1 of each 21-day cycle in combination with lurbinectedin on Day 1 of each 21-day cycle. |
Drug: Atezolizumab
Atezolizumab will be administered intravenously at a fixed dose of 1200 mg on Day 1 of each 21-day cycle for 4 cycles in the induction phase. Atezolizumab will be administered intravenously at a fixed dose of 1200 mg on Day 1 of each 21-day cycle in the maintenance phase.
Other Name: Tecentriq, RO5541267 Drug: Lurbinectedin Lurbinectedin 3.2 mg/m² will be administered intravenously on Day 1 of each 21-day cycle in the maintenance phase.
Other Name: PM01183/JZP712 Drug: Carboplatin Carboplatin will be administered according to the standard of care treatment for 4 cycles in the induction phase. Drug: Etoposide Etoposide will be administered according to the standard of care treatment for 4 cycles in the induction phase. |
Active Comparator: Arm B: Atezolizumab
Induction phase: participants will receive standard of care atezolizumab on Day 1 of each 21-day cycle in combination with carboplatin on Day 1 and etoposide on Days 1, 2, and 3 of each 21-day cycle for 4 cycles. Maintenance phase: participants will receive atezolizumab on Day 1 of each 21-day cycle. |
Drug: Atezolizumab
Atezolizumab will be administered intravenously at a fixed dose of 1200 mg on Day 1 of each 21-day cycle for 4 cycles in the induction phase. Atezolizumab will be administered intravenously at a fixed dose of 1200 mg on Day 1 of each 21-day cycle in the maintenance phase.
Other Name: Tecentriq, RO5541267 Drug: Carboplatin Carboplatin will be administered according to the standard of care treatment for 4 cycles in the induction phase. Drug: Etoposide Etoposide will be administered according to the standard of care treatment for 4 cycles in the induction phase. |
- IRF-Assessed Progression-Free Survival (PFS) [ Time Frame: Randomization to the first occurrence of disease progression or death from any cause (whichever occurs first)(up to approximately 52 months) ]IRF-assessed progression-free survival (PFS) is defined as the time from randomization to the first occurrence of disease progression as determined by the IRF according to RECIST v1.1, or death from any cause (whichever occurs first).
- Overall Survival (OS) [ Time Frame: Randomization to death from any cause (up to approximately 52 months) ]Overall survival (OS) is defined as the time from randomization to death from any cause.
- Investigator-Assessed PFS [ Time Frame: Randomization to the first occurrence of disease progression or death from any cause (whichever occurs first)(up to approximately 52 months) ]Investigator-assessed PFS is defined as the time from randomization to the first occurrence of disease progression as determined by the investigator according to RECIST v1.1, or death from any cause (whichever occurs first).
- Confirmed Objective Response Rate (ORR) [ Time Frame: Up to approximately 52 months ]Confirmed objective response rate (ORR) is defined as the proportion of randomized participants with a CR or PR on two consecutive occasions >= 4 weeks apart after randomization, as determined by the IRF and the investigator according to RECIST v1.1.
- Duration of Response (DOR) [ Time Frame: Up to approximately 52 months ]Duration of Response (DOR) (for participants with a confirmed objective response) is defined as the time from the first occurrence of a documented confirmed objective response after randomization until disease progression as determined by the IRF and the investigator according to RECIST v1.1, or death from any cause (whichever occurs first).
- PFS Rates [ Time Frame: 6 months and 12 months after randomization ]PFS rates at 6 months and 12 months is defined as the proportion of participants who have not experienced disease progression or death from any cause at 6 months and 12 months after randomization, as determined by the IRF and the investigator according to RECIST v1.1.
- OS Rates [ Time Frame: 12 months and 24 months after randomization ]OS rates at 12 months and 24 months is defined as the proportion of participants who have not experienced death from any cause at 12 months and 24 months after randomization.
- Percentage of Participants With Adverse Events [ Time Frame: Up to approximately 52 months ]Percentage of participants with adverse events.
- Percentage of Participants With Anti-Drug Antibodies (ADAs) to Atezolizumab [ Time Frame: Up to approximately 52 months ]Percentage of participants with ADAs to atezolizumab after drug administration.
- Time to Confirmed Deterioration (TTCD) [ Time Frame: Maintenance phase baseline ]Time to confirmed deterioration (TTCD) from maintenance baseline in participant-reported physical functioning and global health status as measured by the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30).

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria for the Induction Phase:
- ECOG PS of 0 or 1
- No prior systemic therapy for ES-SCLC
- Treatment-free for at least 6 months since last chemo/radiotherapy, among those treated (with curative intent) with prior chemo/radiotherapy for limited-stage SCLC
- Histologically or cytologically confirmed ES-SCLC
- Adequate hematologic and end-organ function to receive 4 cycles of induction treatment with carboplatin, etoposide and atezolizumab
- Measurable disease, as defined by RECIST v1.1
- Negative HIV test and no evidence of active Hepatitis B or Hepatitis C at screening
Exclusion Criteria for the Induction Phase:
- Presence or history of CNS metastases
- Active or history of autoimmune disease or deficiency
- History of malignancies other than SCLC within 5 years prior to enrollment
- Prior treatment with CD137 agonists or immune checkpoint blockade therapies, including anti-CTLA-4, anti-PD-1, and anti-PD-L1 therapeutic antibodies, or lurbinectedin or trabectedin
- History of idiopathic pulmonary fibrosis, organizing pneumonia, drug induced pneumonitis, or idiopathic pneumonitis, or evidence of active pneumonitis on screening chest computed tomography (CT) scan
- Treatment with investigational therapy within 28 days prior to enrollment
Inclusion Criteria for the Maintenance Phase:
- ECOG PS of 0 or 1
- Ongoing response or stable disease per RECIST 1.1 after 4 cycles of induction therapy
- Toxicities attributed to prior induction anti-cancer therapy or PCI resolved to Grade <=1
- Adequate hematologic and end-organ function
Exclusion Criteria for the Maintenance Phase:
- Presence or history of CNS metastases
- Receiving consolidative chest radiation
- Severe infection within 2 weeks prior to randomization into the maintenance
- Treatment with therapeutic oral or IV antibiotics at the time of randomization

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05091567
Contact: Reference Study ID Number: GO43104 https://forpatients.roche.com/ | 888-662-6728 (U.S. and Canada) | global-roche-genentech-trials@gene.com |

Study Director: | Clinical Trials | Hoffmann-La Roche |
Responsible Party: | Hoffmann-La Roche |
ClinicalTrials.gov Identifier: | NCT05091567 |
Other Study ID Numbers: |
GO43104 |
First Posted: | October 25, 2021 Key Record Dates |
Last Update Posted: | May 30, 2023 |
Last Verified: | May 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | Qualified researchers may request access to individual patient level data through the clinical study data request platform (www.vivli.org). Further details on Roche's criteria for eligible studies are available here (https://vivli.org/members/ourmembers/). For further details on Roche's Global Policy on the Sharing of Clinical Information and how to request access to related clinical study documents, see here (https://www.roche.com/research_and_development/who_we_are_how_we_work/clinical_trials/our_commitment_to_data_sharing.htm). |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Lung Neoplasms Small Cell Lung Carcinoma Respiratory Tract Neoplasms Thoracic Neoplasms Neoplasms by Site Neoplasms Lung Diseases Respiratory Tract Diseases Carcinoma, Bronchogenic Bronchial Neoplasms Carboplatin |
Etoposide Atezolizumab Antineoplastic Agents Antineoplastic Agents, Phytogenic Topoisomerase II Inhibitors Topoisomerase Inhibitors Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Immune Checkpoint Inhibitors Antineoplastic Agents, Immunological |