Tarlatamab + Durvalumab for Lung Cancer

(DeLLphi-305 Trial)

Recruiting at 224 trial locations

Overseen By Amgen Call Center

Age: 18+

Sex: Any

Trial Phase: Phase 3

Sponsor: Amgen

Must be taking: Platinum-etoposide, Durvalumab

Must not be taking: Corticosteroids, Immunosuppressants

Disqualifiers: CNS metastases, Autoimmune disorders, others

No Placebo Group All trial participants will receive the active study treatment (no placebo)

Pivotal Trial (Near Approval) This treatment is in the last trial phase before FDA approval

Prior Safety Data This treatment has passed at least one previous human trial

Breakthrough Therapy This drug has been fast-tracked for approval by the FDA given its high promise

Compensation: Varies

Number of Visits: Unknown

Duration: Until disease progression or unacceptable toxicity

550 Participants Needed

Trial Summary

What is the purpose of this trial?

The primary objective of this study is to compare the efficacy of tarlatamab plus durvalumab with durvalumab alone on prolonging overall survival (OS).

Will I have to stop taking my current medications?

The trial does not specify if you must stop taking your current medications, but you cannot be on systemic corticosteroids or other immunosuppressive therapy within 14 days before starting the study treatment. It's best to discuss your specific medications with the study team.

What safety information is available for the combination of Tarlatamab and Durvalumab in lung cancer treatment?

Durvalumab, used in various cancer treatments, has shown some safety concerns, including immune-related side effects like pneumonitis (lung inflammation), colitis (inflammation of the colon), and thyroid issues. In studies, most side effects were mild, but some serious cases, including treatment-related deaths, were reported. The combination with other drugs like tremelimumab increased the risk of severe side effects. ^{1 2 3 4 5}

What makes the drug combination of Tarlatamab and Durvalumab unique for lung cancer treatment?

The combination of Tarlatamab and Durvalumab is unique because it involves using two immune-based therapies together, where Durvalumab is an anti-PD-L1 inhibitor that helps the immune system attack cancer cells, and Tarlatamab is a novel agent that may enhance this effect. This approach aims to improve outcomes in lung cancer by leveraging the body's immune response more effectively than traditional treatments. ^{2 6 7 8 9}

Research Team

MD

Principal Investigator

Amgen

Eligibility Criteria

This trial is for adults with extensive-stage small-cell lung cancer who've had 3-4 cycles of specific chemo and a drug called durvalumab without their disease getting worse. They should be expected to live at least 12 more weeks, have resolved treatment side effects (except hair loss or tiredness), and good organ function. People with active brain metastases or poor physical status can't join.

Inclusion Criteria

You are expected to live for at least 12 more weeks.

Criterion: You are not allowed to participate.

You have agreed to take part in the study before it starts.

Timeline

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants receive tarlatamab every 2 weeks and durvalumab every 4 weeks, or durvalumab alone every 4 weeks

Until disease progression or unacceptable toxicity

Bi-weekly and monthly visits

Follow-up

Participants are monitored for safety and effectiveness after treatment

4 weeks

Treatment Details

Interventions

• Durvalumab
• Tarlatamab

Trial Overview The study aims to see if adding tarlatamab to durvalumab improves overall survival compared to using durvalumab alone in patients who have already received initial treatments for extensive-stage small-cell lung cancer.

Participant Groups

Group I: Tarlatamab in Combination With Durvalumab Experimental Treatment 2 Interventions

Participants will receive tarlatamab once every 2 weeks (Q2W) and durvalumab once every 4 weeks (Q4W).

Group II: Durvalumab Alone Active Control 1 Intervention

Participants will receive durvalumab Q4W alone.

Durvalumab is already approved in European Union, United States, Japan for the following indications:

Approved in European Union as Imfinzi for:

• Locally advanced, unresectable non-small cell lung cancer (NSCLC)

Approved in United States as Imfinzi for:

• Extensive-stage small cell lung cancer (ES-SCLC)
• Limited-stage small cell lung cancer (LS-SCLC)
• Locally advanced or metastatic urothelial carcinoma

Approved in Japan as Imfinzi for:

• Not specified in provided sources

Who Is Running the Clinical Trial?

Amgen

Lead Sponsor

Trials

1,508

Recruited

1,433,000+

Founded

1980

Headquarters

Thousand Oaks, USA

Known For

Human Therapeutics

Top Products

Enbrel, Prolia, Neulasta, Otezla

Robert A. Bradway

Amgen

Chief Executive Officer since 2012

MBA from Harvard Business School

Paul Burton

Amgen

Chief Medical Officer since 2023

MD from University of London, PhD in Molecular and Cellular Biology from Imperial College London

Findings from Research

Durvalumab, a PD-L1 inhibitor, has been shown to be safe for patients with various solid tumors, with common side effects including pruritus and fatigue, based on a meta-analysis of 17 studies involving 1,529 patients.

Higher levels of PD-L1 expression in tumors are linked to better treatment responses to durvalumab, indicating that PD-L1 could serve as a useful biomarker for predicting the drug's efficacy.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Safety and efficacy of durvalumab (MEDI4736) in various solid tumors. Yang, H., Shen, K., Zhu, C., et al.[2022]

In a phase Ib study involving 136 patients, durvalumab (Du) combined with tremelimumab (Tr) and standard platinum-doublet chemotherapy was found to be safe, with most drug-related adverse events being mild (≤ grade 2) and primarily due to chemotherapy.

Among 73 patients with non-small cell lung cancer (NSCLC), the treatment achieved a 51% objective response rate, with a median progression-free survival of 6.5 months and overall survival of 19.8 months, indicating promising efficacy comparable to other immunotherapy and chemotherapy combinations.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

A phase IB study of durvalumab with or without tremelimumab and platinum-doublet chemotherapy in advanced solid tumours: Canadian Cancer Trials Group Study IND226. Juergens, RA., Hao, D., Ellis, PM., et al.[2021]

In the phase III PACIFIC trial, durvalumab treatment led to a low incidence of immune-mediated adverse events (imAEs), with any-grade immune-mediated pneumonitis occurring in 9.4% of patients and grade 3/4 imAEs in only 3.4%.

Despite the occurrence of imAEs being more common with durvalumab compared to placebo, these events were generally manageable with treatments like corticosteroids, indicating that the benefits of the PACIFIC regimen outweigh the risks.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Characterizing immune-mediated adverse events with durvalumab in patients with unresectable stage III NSCLC: A post-hoc analysis of the PACIFIC trial. Naidoo, J., Vansteenkiste, JF., Faivre-Finn, C., et al.[2022]

The combination of durvalumab and tremelimumab in cancer treatment is associated with a higher incidence of severe adverse events (32.6%) compared to durvalumab alone (23.8%), indicating increased safety concerns with the combination therapy.

Patients receiving the combination therapy also experienced higher rates of specific side effects such as diarrhea (15.6% vs. 8.1%), rash (11.1% vs. 6.5%), and treatment discontinuation (18% vs. 3%), highlighting the need for careful monitoring and patient counseling regarding these risks.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Adverse Events and Tolerability of Combined Durvalumab and Tremelimumab versus Durvalumab Alone in Solid Cancers: A Systematic Review and Meta-Analysis. Fahmy, O., Ahmed, OAA., Khairul-Asri, MG., et al.[2023]

In a study of 83 patients with unresectable stage III non-small cell lung cancer (NSCLC) receiving durvalumab, 25.3% experienced pneumonitis, confirming the risk associated with this treatment.

The incidence of pneumonitis observed in this real-world setting aligns with findings from the PACIFIC trial, indicating that the safety profile of durvalumab is consistent in clinical practice.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Real-World Incidence of Pneumonitis in Patients Receiving Durvalumab. LeClair, JN., Merl, MY., Cohenuram, M., et al.[2022]

In a study of 121 patients with stage III non-small cell lung cancer treated with durvalumab, those with over 50% PD-L1 expression had significantly better outcomes, with a 1-year survival rate of 97% compared to 73% and 78% for lower expression groups.

Higher PD-L1 expression (>50%) was strongly associated with improved progression-free survival and overall survival, indicating that PD-L1 levels could be a key factor in predicting the effectiveness of durvalumab treatment.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Tumor PD-L1 expression is associated with outcomes in stage III non-small cell lung cancer (NSCLC) patients treated with consolidation durvalumab. Jazieh, K., Gad, M., Saad, A., et al.[2022]

Durvalumab, a PD-L1 inhibitor, has shown promising results in increasing progression-free survival and objective response rates in patients with inoperable and locally advanced stage III non-small cell lung cancer, based on interim results from a phase III trial.

The significant benefits observed suggest that durvalumab could potentially become the standard treatment for these patients in the United States.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Durvalumab Promising for NSCLC. [2019]

Durvalumab has been approved for use in patients with locally advanced PD-L1-positive non-small cell lung cancer (NSCLC) after chemoradiotherapy, based on its efficacy demonstrated in the PACIFIC trial and subsequent analysis of 211 patients in the Expanded Access Program (EAP).

In the EAP, 126 patients who received durvalumab were included, some of whom had oligometastatic disease and a history of autoimmune conditions, indicating that durvalumab may be effective and safe for a broader patient population than previously studied.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Durvalumab after definitive chemoradiotherapy in locally advanced NSCLC: Data of the German EAP. Faehling, M., Schumann, C., Christopoulos, P., et al.[2020]

In a study of 81 patients with unresectable locally advanced non-small cell lung cancer (NSCLC), those with high tumor mutational burden (TMB-high) showed significantly better outcomes, including lower local-regional failure rates (9% vs 51%) and improved progression-free survival (66% vs 27%) compared to TMB-low patients.

The study suggests that TMB status could be a valuable biomarker for personalizing treatment strategies, as it was the only factor significantly associated with local-regional failure and progression-free survival after treatment with chemoradiation and adjuvant durvalumab.

NCBI (Pubmed)

pubmed.ncbi.nlm.nih.gov

Analysis of Tumor Mutational Burden, Progression-Free Survival, and Local-Regional Control in Patents with Locally Advanced Non-Small Cell Lung Cancer Treated With Chemoradiation and Durvalumab. Lebow, ES., Shepherd, A., Eichholz, JE., et al.[2023]

References

1. New Zealand pubmed.ncbi.nlm.nih.gov

Safety and efficacy of durvalumab (MEDI4736) in various solid tumors. [2022]

2. Ireland pubmed.ncbi.nlm.nih.gov

A phase IB study of durvalumab with or without tremelimumab and platinum-doublet chemotherapy in advanced solid tumours: Canadian Cancer Trials Group Study IND226. [2021]

3. Ireland pubmed.ncbi.nlm.nih.gov

Characterizing immune-mediated adverse events with durvalumab in patients with unresectable stage III NSCLC: A post-hoc analysis of the PACIFIC trial. [2022]

4. Switzerland pubmed.ncbi.nlm.nih.gov

Adverse Events and Tolerability of Combined Durvalumab and Tremelimumab versus Durvalumab Alone in Solid Cancers: A Systematic Review and Meta-Analysis. [2023]

5. United States pubmed.ncbi.nlm.nih.gov

Real-World Incidence of Pneumonitis in Patients Receiving Durvalumab. [2022]

6. China pubmed.ncbi.nlm.nih.gov

Tumor PD-L1 expression is associated with outcomes in stage III non-small cell lung cancer (NSCLC) patients treated with consolidation durvalumab. [2022]

7. United States pubmed.ncbi.nlm.nih.gov

Durvalumab Promising for NSCLC. [2019]

8. Netherlands pubmed.ncbi.nlm.nih.gov

Durvalumab after definitive chemoradiotherapy in locally advanced NSCLC: Data of the German EAP. [2020]

9. United States pubmed.ncbi.nlm.nih.gov

Analysis of Tumor Mutational Burden, Progression-Free Survival, and Local-Regional Control in Patents with Locally Advanced Non-Small Cell Lung Cancer Treated With Chemoradiation and Durvalumab. [2023]