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Study to Confirm Efficacy and Feasibility of Tarlatamab Treatment in Patients With Extensive Stage Small-cell Lung Cancer With Poor Performance Status (SPACE-T)

31. august 2026 oppdatert av: AIO-Studien-gGmbH

A Single-arm Phase II-study to Confirm Efficacy and Feasibility of Tarlatamab Treatment in Patients With Extensive Stage Small-cell Lung Cancer With Poor Performance Status

The SPACE-T study is a clinical trial for people with advanced small-cell lung cancer (SCLC) whose cancer has returned or spread despite previous treatment and whose general health is reduced (ECOG performance status 2). The study will include 57 participants at about 15 sites in Germany.

The study is testing tarlatamab, a treatment that helps the immune system recognize and attack cancer cells. Participants will receive tarlatamab through a vein, starting with a lower dose of 1 mg, followed by doses of 10 mg. Treatment will then generally be given every two weeks.

The main purpose of the study is to find out how effective tarlatamab is in this group of patients by assessing how many participants are alive 12 months after starting the study. The study will also examine how well the treatment controls the cancer, including cancer that has spread to the brain, how well participants tolerate the treatment, its side effects, and its impact on quality of life.

Patients with poorer general health are often not included in clinical trials, even though they represent an important part of the people treated for SCLC in everyday clinical practice. The SPACE-T study aims to provide more information about whether tarlatamab is effective and feasible for these patients.

Studieoversikt

Status

Rekruttering

Intervensjon / Behandling

Detaljert beskrivelse

The SPACE-T study is a phase II clinical trial investigating the treatment tarlatamab in people with advanced small-cell lung cancer (SCLC). The study focuses specifically on patients whose cancer has returned or spread after previous treatment and whose general health and ability to carry out everyday activities are reduced (ECOG performance status 2). This patient group is often underrepresented in clinical trials, although it represents an important part of patients treated for SCLC in routine clinical practice.

A total of 57 patients are planned to participate at approximately 15 study sites in Germany. To take part, patients must be at least 18 years old and have confirmed small-cell lung cancer that has returned or spread to other parts of the body. They must have received at least one previous treatment for recurrent or metastatic disease. In general, previous treatment should have included platinum-based chemotherapy, etoposide and a PD-L1 inhibitor. Patients must also have cancer that can be measured on imaging examinations.

Patients with brain metastases may also participate in the study. However, patients cannot take part if brain metastases are causing new or worsening neurological symptoms. There are also other eligibility requirements relating, for example, to blood counts, liver and kidney function, breathing problems and previous cancer treatments. Patients who have previously received a treatment targeting DLL3 cannot participate.

All participants in the study will receive tarlatamab; there is no placebo or comparison group. Tarlatamab is a type of immunotherapy designed to bring the body's T cells into contact with cancer cells that carry a protein called DLL3. This is intended to help the immune system recognize and attack the cancer cells.

Tarlatamab is given through a vein. To reduce the risks associated with starting treatment, patients first receive a lower dose of 1 mg on the first day of treatment. They then receive the full 10 mg dose one week later and again one week after that. Afterwards, tarlatamab is generally given every two weeks.

The main aim of the SPACE-T study is to determine how effective tarlatamab is in this patient population. The main measure used for this assessment is the proportion of patients who are alive 12 months after starting the study. Other assessments will look at how long patients live overall, how long the cancer remains under control, how many patients have a reduction in the size of their cancer, and how long it takes before another cancer treatment is needed. For patients with brain metastases, the study will also examine how well the treatment controls cancer in the brain.

Another important aim is to understand whether tarlatamab can be given safely and practically to patients whose general health is reduced. The study will therefore closely assess side effects and how well patients tolerate treatment. It will also evaluate patients' quality of life and symptoms using questionnaires completed by the patients themselves. In addition, the study will investigate whether palliative radiotherapy, for example for symptomatic cancer lesions, can be incorporated into treatment with tarlatamab.

Blood samples and, where available as part of routine care, tumor tissue samples will also be collected for research. These samples will be used to study changes in the immune system during treatment and to investigate whether early immune responses may be related to how well a patient's cancer responds to tarlatamab.

Tarlatamab can cause specific immune-related side effects. These include cytokine release syndrome (CRS), an inflammatory reaction caused by activation of the immune system, and neurological side effects such as immune effector cell-associated neurotoxicity syndrome (ICANS). One reason for conducting the SPACE-T study is to obtain more information about the feasibility, safety and effectiveness of tarlatamab in patients with poorer general health, for whom there is currently limited clinical evidence.

Overall, the SPACE-T study aims to determine whether tarlatamab is an effective and feasible treatment option for patients with advanced small-cell lung cancer and reduced performance status, a population that more closely reflects many patients seen in everyday clinical practice.

Studietype

Intervensjonell

Registrering (Antatt)

57

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

      • Berlin, Tyskland, 13125
        • Rekruttering
        • Evangelische Lungenklinik Berlin
        • Ta kontakt med:
          • Christian Grohé, MD
      • Dresden, Tyskland, 01307
        • Rekruttering
        • Universitatsklinikum Carl Gustav Carus
        • Ta kontakt med:
          • Martin Wermke, MD
      • Essen, Tyskland, 45147
        • Rekruttering
        • Universitätsklinikum Essen
        • Ta kontakt med:
          • Marcel Wiesweg, MD
      • Flensburg, Tyskland, 24939
        • Rekruttering
        • Malteser Krankenhaus St. Franziskus-Hospital
        • Ta kontakt med:
          • Nicolai Faber, MD
      • Frankfurt, Tyskland, 60590
        • Rekruttering
        • Universitätsklinikum Frankfurt
        • Ta kontakt med:
          • Friederike Althoff, MD
      • Minden, Tyskland, 32429
        • Rekruttering
        • Johannes Wesling Klinikum Minden
        • Ta kontakt med:
          • Parvis Sadjadian, MD
      • München, Tyskland, 80336
        • Rekruttering
        • Klinikum der Universität München
        • Ta kontakt med:
          • Amanda Tufman, MD
      • Stuttgart, Tyskland, 70174
        • Rekruttering
        • Klinikum Stuttgart
        • Ta kontakt med:
          • Cornelia Kropf-Sanchen, MD

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  1. Written informed consent obtained from the subject prior to performing any protocol-related procedures.
  2. Age ≥ 18 years
  3. ECOG performance status 2
  4. Histologically confirmed small-cell lung cancer (initial mixed histology / combined SCLC permitted if re-biopsy of current progression shows SCLC)
  5. Recurrent or metastatic disease. In case of local-only recurrence, availability of local treatment options must have been excluded
  6. Has received at least one prior line of treatment in the recurrent or metastatic setting
  7. Has received a prior treatment line with platinum, etoposide, and a PD-L1 antibody. Treatment with chemotherapy only is acceptable if the patient had a contraindication for CPI treatment
  8. Measurable disease according to RECIST v1.1

Exclusion Criteria:

  1. ECOG performance status 0, 1, 3 or 4
  2. Life expectancy less than three months
  3. Active brain metastases with unstable symptoms (new or progressive neurological symptoms within the last 3 weeks)
  4. Bone marrow insufficiency:

    1. neutrophil count < 1.5/nl or
    2. hemoglobin <8 mg/dl or
    3. platelets <100/nl
  5. Advanced liver disease:

    1. Subjects with pre-existing chronic liver disease:

      iii. Total bilirubin > 1.5xULN or iv. ALT or AST > 3xULN

    2. Subjects with no relevant prior chronic liver disease and elevated liver parameters due to liver metastases:

    v. Total bilirubin > 3xULN or vi. ALT or AST > 10xULN c. International normalized ratio (INR) > 2.0 and partial thromboplastin time (PTT) or activated partial thromboplastin time (aPTT) ≥ 1.5 x ULN, except for subjects undergoing new class anticoagulant therapy (eg, Apixaban, Rivaroxaban, Edoxaban) with stable dose for 2 weeks prior to enrollment

  6. Advanced kidney disease:

    CKD-EPI GFR <20 ml/min/1.73m²

  7. Heart failure with reduced ejection fraction (EF < 40%, assessed by echochardiography performed within 3 months prior to C1D1)
  8. Hemodynamically significant pericardial effusion
  9. Clinically significant pleural effusion (Clinically significant pleural effusions must be managed by drainage. Re-check within 3 days prior to initiation of treatment.)
  10. Respiratory compromise leading to an unjustifiable risk in case of higher-grade CRS, in the judgment of the investigator (possible criteria leading to such judgment: oxygen support at rest >2l/min, active pneumonia or pneumonitis)
  11. Prior DLL3-directed treatment
  12. Prior systemic therapy (chemotherapy, CPI) within 14 days prior to first dose of study treatment
  13. Previous treatment in the present study (does not include screening failure)
  14. History of immune-mediated encephalitis
  15. Concurrent malignancy other than SCLC requiring active treatment
  16. HIV infection not on stable antiviral treatment
  17. Women of childbearing potential or men with partners of childbearing potential who are not adhering to contraceptive measures
  18. Female subjects of childbearing potential

    1. unwilling to use appropriate method(s) of contraception. WOCBP should use an adequate method to avoid pregnancy for 60 days after the last dose of tarlatamab
    2. who are breastfeeding or who plan to breastfeed while on study through 60 days after the last dose of tarlatamab
    3. planning to become pregnant or donate eggs while on study through 60 days after the last dose of tarlatamab
    4. with a positive pregnancy test at screening
  19. Male subjects

    1. with a female partner of childbearing potential who are unwilling to practice sexual abstinence (refrain from heterosexual intercourse) or use contraception during treatment and for an additional 60 days after the last dose of tarlatamab
    2. with a pregnant partner who are unwilling to practice abstinence or use a condom during treatment and for an additional 60 days after the last dose of tarlatamab
    3. unwilling to abstain from donating sperm during treatment and for an additional 60 days after the last dose of tarlatamab
  20. Patient who has been incarcerated or involuntarily institutionalized by court order or by the authorities [§ 40 Abs. 1 S. 3 Nr. 4 AMG].
  21. Patients who are unable to consent because they do not understand the nature, significance and implications of the clinical trial and therefore cannot form a rational intention in the light of the facts [§ 40 Abs. 1 S. 3 Nr. 3a AMG].

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Tarlatamab
Participants receive tarlatamab intravenously at a step dose of 1 mg on Cycle 1 Day 1, followed by the target dose of 10 mg on Cycle 1 Day 8 and Cycle 1 Day 15, and every two weeks thereafter.
Tarlatamab is administered intravenously at a step dose of 1 mg on Cycle 1 Day 1, followed by a target dose of 10 mg on Cycle 1 Day 8 and Cycle 1 Day 15, and every two weeks thereafter.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Overall Survival Rate at 12 Months
Tidsramme: 12 months
Percentage of participants who are alive 12 months after initiation of study treatment.
12 months

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Overall Survival (OS)
Tidsramme: From initiation of study treatment until death from any cause, assessed up to 48 months
Time from initiation of study treatment to death from any cause.
From initiation of study treatment until death from any cause, assessed up to 48 months
Progression-Free Survival (PFS)
Tidsramme: From initiation of study treatment until the date of first documented disease progression or death from any cause, whichever occurs first, assessed up to 48 months
(PFS) Time from initiation of study treatment to disease progression or death from any cause, whichever occurs first.
From initiation of study treatment until the date of first documented disease progression or death from any cause, whichever occurs first, assessed up to 48 months
Objective Response Rate (ORR)
Tidsramme: From initiation of study treatment until documented disease progression, assessed up to 48 months
Percentage of participants with an objective tumor response according to RECIST v1.1.
From initiation of study treatment until documented disease progression, assessed up to 48 months
Intracranial Objective Response Rate (iORR)
Tidsramme: From initiation of study treatment until documented intracranial disease progression, assessed up to 48 months
Percentage of participants with brain metastases who achieve an objective intracranial tumor response.
From initiation of study treatment until documented intracranial disease progression, assessed up to 48 months
Rate of Participants Tolerating Tarlatamab Until First Disease Assessment
Tidsramme: From first dose until first scheduled disease assessment after 2 months
percentage of participants who are able to continue tarlatamab treatment until the first scheduled disease assessment
From first dose until first scheduled disease assessment after 2 months
Safety and Tolerability of Tarlatamab
Tidsramme: rom first dose of tarlatamab through the protocol-defined safety follow-up period, assessed up to 48 months
Incidence and severity of adverse events during treatment with tarlatamab.
rom first dose of tarlatamab through the protocol-defined safety follow-up period, assessed up to 48 months
Time to Next-Line Systemic Therapy
Tidsramme: From initiation of study treatment until initiation of the next-line systemic anticancer therapy, assessed up to 48 months
Time from initiation of study treatment to initiation of the next systemic anticancer therapy.
From initiation of study treatment until initiation of the next-line systemic anticancer therapy, assessed up to 48 months
Quality of Life - EORTC QLQ-C30
Tidsramme: From baseline through treatment and follow-up, assessed up to 48 months
Changes in patient-reported quality of life as assessed using the EORTC QLQ-C30 questionnaire.
From baseline through treatment and follow-up, assessed up to 48 months
Patient-Reported Symptoms - PRO-CTCAE
Tidsramme: From baseline through treatment and follow-up, assessed up to 48 months
Patient-reported symptomatic adverse events assessed using the PRO-CTCAE questionnaire.
From baseline through treatment and follow-up, assessed up to 48 months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. januar 2025

Primær fullføring (Antatt)

31. desember 2027

Studiet fullført (Antatt)

31. desember 2028

Datoer for studieregistrering

Først innsendt

19. august 2026

Først innsendt som oppfylte QC-kriteriene

31. august 2026

Først lagt ut (Faktiske)

4. september 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

4. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

31. august 2026

Sist bekreftet

1. august 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • AIO-TRK-0624
  • 2025 (U.S. NIH-stipend/kontrakt: Faculty of Social Sciences Scientific Grant at the University of Gdańsk)
  • 2025-522437-65-00 (Ctis)

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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