Clinical trial Recruiting at 1 site Observational Ages 18 to 75

Exploration of whole-brain radiotherapy with PD-1 inhibitors for brain injury in SCLC

Official title: A Prospective Cohort Observational Study of Brain Injury Induced by Whole-Brain Radiotherapy Combined With Immunotherapy

Run by Guizhou Medical University · NCT07905937 · Data updated 2026-11-12

This study tests whether adding PD-1 inhibitors to chemotherapy and prophylactic brain irradiation helps some small cell lung cancer patients protect the brain.

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Quick facts

Study typeObservational
Ages18 Years to 75 Years
SexAll
Enrollment42 (estimated)
SponsorGuizhou Medical University
Academic / other
Drugs / interventionschemotherapy, immunotherapy
Locations1 site (Guiyang, Guizhou)
StatusRecruiting
StartedJune 30, 2026
Main results expectedDecember 30, 2028
Study endsJune 30, 2029
Registry record updatedOctober 30, 2026
Trial IDNCT07905937 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults 18–75 with limited- or extensive-stage SCLC who have achieved CR/PR after first-line therapy (limited-stage) or effective systemic control without brain metastases (extensive-stage), and are planned to receive PCI after two treatment cycles.

Probably not a fit

Patients with existing brain metastases, poor performance status, or contraindications to radiotherapy, chemotherapy, or immunotherapy may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an observational study enrolling adults with limited- or extensive-stage small cell lung cancer who meet PCI indications after initial treatment. The plan compares a cohort receiving first-line chemo plus immunotherapy with PCI for those who respond to initial therapy to a control cohort receiving standard chemoradiotherapy with PCI. After two cycles of treatment, patients with a confirmed response may proceed to PCI. The study aims to observe outcomes without randomizing participants to treatment arms. Lead site is the Affiliated Hospital of GuiZhou Medical University, with Guizhou Medical University as sponsor.

Why it matters

Potential benefit: If successful, this approach could clarify whether adding PD-1 inhibitors to PCI improves brain-related control and overall outcomes.

How similar studies have gone: Previous studies in similar combinations have shown signals of brain-control benefit in SCLC, but this observational approach remains exploratory.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Histologically or cytologically confirmed limited-stage or extensive-stage small cell lung cancer, and meeting the indications for prophylactic cranial irradiation (PCI): patients with limited-stage disease achieving complete response (CR) or partial response (PR) after first-line treatment; patients with extensive-stage disease achieving effective tumor control after systemic therapy, with no clear evidence of brain metastasis.
2. Age 18-75 years, Karnofsky Performance Status (KPS) score ≥ 70.
3. Estimated survival ≥ 6 months, with completion of at least 12 months of follow-up.
4. No contraindications to radiotherapy, chemotherapy, or immunotherapy.
5. Good compliance with the treatment protocol and follow-up, and provision of informed consent.

Exclusion Criteria:

1. Patients with brain metastases, cerebral infarction, cerebral hemorrhage, sequelae of traumatic brain injury, or other primary brain diseases (e.g., Alzheimer's disease, multiple sclerosis) confirmed by MRI before enrollment.
2. Patients who have previously received brain radiotherapy, brain surgery, or immunotherapy.
3. Patients with psychiatric disorders or cognitive impairment (MMSE score \< 26) unable to cooperate with follow-up assessments.
4. Patients with a history of other malignancies prior to or concurrent with the current treatment.
5. Severe cardiac, pulmonary, or renal disease, active autoimmune disease, or uncontrolled active infectious disease.
6. Pregnant or lactating women.

Where it's running

  • the Affiliated Hospital of GuiZhou Medical University
    Guiyang, Guizhou, China
    Recruiting

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.