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A Prospective Single-arm Phase II Study of Spatially Fractionated Radiotherapy Combined with Immunotherapy for Advanced Bulky Non-Small Cell Lung Cancer (I-LATTICE)

A Prospective Single-arm Phase II Study of Spatially Fractionated Radiotherapy Combined with Immunotherapy for Advanced Bulky Non-Small Cell Lung Cancer (I-LATTICE)

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600124021
Enrollment
Unknown
Registered
2026-05-06
Start date
2026-06-01
Completion date
Unknown
Last updated
2026-05-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-small cell lung cancer

Interventions

Experimental group:LATTICE radiotherapy combined with immunotherapy

Sponsors

Hangzhou Cancer Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1.Histologically or pathologically confirmed NSCLC; 2.Stage IV disease according to AJCC 9th edition Lung Cancer Staging, or unresectable/unfit for definitive chemoradiation Stage IIIB/IIIC disease (e.g., bilateral lung involvement); 3.Absence of driver gene alterations (including, but not limited to, EGFR/BRAF V600E mutations, ALK/ROS1/RET fusions); 4.Achieved Partial Response (PR) or Stable Disease (SD) after receiving >=4 cycles of first-line therapy with Immune Checkpoint Inhibitors (ICIs) combined with platinum-based doublet chemotherapy; 5.Presence of a bulky lesion (primary or metastatic) with a maximum diameter >5 cm that has not received prior local therapy and is confirmed via multidisciplinary evaluation to be suitable for safe implementation of the LATTICE technique; 6.Age >=18 years; 7.Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1 (confirmed within 7 days prior to the first dose); 8.Life expectancy >=6 months; 9.Male participants: Must agree to use effective contraception and refrain from sperm donation from the start of treatment until 180 days after the last dose; 10.Female participants must not be pregnant or lactating and must meet at least one of the following criteria: a. Not of childbearing potential, OR b. Agree to use effective contraception from the start of treatment as specified in the protocol; 11.Signed informed consent form;

Exclusion criteria

Exclusion criteria: 1.Patients with locally advanced NSCLC amenable to curative-intent concurrent chemoradiation or surgery (Stage IIIB/IIIC per AJCC 9th edition Lung Cancer Staging); 2.The target lesion intended for LATTICE radiotherapy has received prior local therapy (e.g., radiotherapy, radiofrequency ablation, particle implantation); 3.Presence of unresolved prior treatment-related toxicities of Grade >=2 (except for alopecia, fatigue, and endocrinopathies stabilized with hormone replacement therapy); 4.Active autoimmune disease requiring systemic immunosuppressive therapy within the past 2 years (local steroid use or physiologic replacement therapy is allowed); 5.Current or history of Grade >=2 immune-related pneumonitis/interstitial lung disease requiring corticosteroid treatment; 6.History of immunodeficiency diseases, such as immunoglobulin deficiency, aplastic anemia, human immunodeficiency virus (HIV) infection, etc; 7.Active hepatitis B (defined as HBV DNA > 500 copies/mL) or hepatitis C virus (defined as HCV RNA positive) infection; 8.Active tuberculosis (untreated or treated for less than 4 weeks); 9.Administration of a live or attenuated live vaccine within 30 days prior to the first study intervention. Inactivated vaccines are allowed; 10.Other progressive malignancies within 5 years (except for curatively treated skin carcinoma/carcinoma in situ of the cervix, or solid tumors with no recurrence for >3 years after radical surgery); 11.Uncontrolled central nervous system metastases (patients with asymptomatic/stable lesions for >=4 weeks not requiring corticosteroids are eligible); 12.History of Grade >=3 hypersensitivity to PD-1/PD-L1 inhibitors or platinum-based chemotherapy; 13.Active infection requiring systemic therapy; 14.Any medical condition that, in the investigator's judgment, poses an excessive risk to the patient, such as poorly controlled diabetes, liver failure, or cardiac dysfunction; 15.Uncontrolled psychiatric illness or substance dependence (interfering with treatment or informed consent); 16.Pregnancy, lactation, or refusal to use contraception; 17.History of allogeneic tissue or solid organ transplantation; 18.Patients unable to comply with regular follow-up; 19.Currently participating in or have received other investigational drugs or devices;

Design outcomes

Primary

MeasureTime frame
To evaluate the progression-free survival (PFS) of LATTICE radiotherapy combined with ICIs in the treatment of advanced large-mass NSCLC;

Secondary

MeasureTime frame
To evaluate the overall, in?field, and out?of?field disease control rate (DCR) of LATTICE radiotherapy combined with immune checkpoint inhibitors (ICIs) in the treatment of advanced bulky non?small ce;To evaluate the overall survival (OS) of LATTICE radiotherapy combined with ICIs in the treatment of advanced large-mass NSCLC;Safety endpoint;To evaluate the overall, in-field and field objective response rates (ORR) of LATTICE radiotherapy combined with ICIs in the treatment of advanced large-mass NSCLC;

Countries

China

Contacts

Public ContactKan Wu

Hangzhou Cancer Hospital

wukanwukan@126.com+86 571 56006382

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: May 16, 2026