Can a double immune attack keep lung cancer at bay?
NCT ID NCT06095583
First seen Jul 27, 2026 · Last updated Jul 28, 2026 · Updated 1 time
Summary
This phase 3 trial is testing whether adding one or two immune-boosting antibodies—toripalimab alone or combined with tifcemalimab—after standard chemoradiotherapy can help people with limited-stage small cell lung cancer live longer without the cancer growing. About 756 participants who have not progressed after chemoradiotherapy will receive either the drug combination, toripalimab alone, or placebos. The study aims to see if these immune therapies can improve survival and delay cancer recurrence.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- toripalimab and tifcemalimab, two experimental immune-boosting antibodies
- What this could lead to
- If successful, this combination could offer a new consolidation treatment to help prevent lung cancer from returning after initial chemoradiotherapy.
- What could go wrong
- This is an early-phase trial in a specific cancer type, and neither drug is approved for this use. Immune-related side effects are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 756 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2023
- Expected to finish
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Jul 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Patients must meet all of the following inclusion criteria to be enrolled: 1. Male or female with age ≥ 18 years old at the time of informed consent. 2. Histologically or cytologically confirmed LS-SCLC using the Veteran's Administration Lung Study Arm (VALSG) staging criteria (Appendix 3). Patients with TNM Stage I or II disease per AJCC 8th edition must be medically inoperable (as determined by the Investigator) or the patient must refuse surgery. 3. Received CRT defined as: (1) 4 cycles of chemotherapy consisting of carboplatin or cisplatin and intravenously administered etoposide; (2) a total radiation dose of 60-66 Gy for the standard once daily (QD) radiotherapy regimen or 45 Gy for the hyperfractionated twice daily (BID) radiotherapy regimen; (3) Patients must begin investigational interventions within 42 days of the last dose of chemotherapy. 4. Patients must have achieved a complete response (CR), partial response (PR), or stable disease (SD) after receiving curative platinum-based CRT and must not have developed progressive disease (PD) prior to study entry. 5. Eastern Cooperative Oncology Group (ECOG) performance status (PS) score of 0-1 . 6. Adequate organ function 7. Female patients of childbearing potential and male patients whose partners are women of childbearing age. 8. Voluntarily agree to participate in the study, sign the informed consent form, and agree to comply with all study and follow-up procedures. Exclusion Criteria: Patients will be excluded from the study if they meet any of the following criteria. 1. Mixed SCLC and non-small cell lung cancer (NSCLC). 2. Received sequential chemoradiotherapy for LS-SCLC. 3. Failure to recover from toxicity of prior anticancer therapy to Common Terminology Criteria for Adverse Events (CTCAE) Grade ≤ 1 (except alopecia) or levels specified in the inclusion/exclusion criteria, whichever is more severe. 4. Patients with active autoimmune disease, history of autoimmune disease. 5. History of immunodeficiency, including HIV seropositivity, other acquired congenital immunodeficiency diseases, or a history of organ transplantation or allogeneic bone marrow transplantation. 6. History of confirmed or suspected interstitial lung disease or pneumonitis (except for Grade 1 radiation pneumonitis not treated with corticosteroids). 7. The presence of active hepatitis B (HBV DNA ≥ 500 IU/mL), hepatitis C (hepatitis C antibodies positive and HCV-RNA higher than the lower limit of detection of the analytical method). 8. Any other malignancy diagnosed prior to the first dose of investigational intervention, except those with a low risk for the development of metastases (5-year survival rate \> 90%), such as adequately treated basal cell or squamous cell skin cancer, carcinoma in situ of the cervix or breast, or adequately treated localized prostate cancer. 9. Women who are pregnant or breastfeeding.
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Get notified about this study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
76 sites in 6 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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"TIM - Tbilisi Institute of Medicine" LTD
NOT_YET_RECRUITINGTbilisi, Georgia
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Affiliated Hospital of Jining Medical University
NOT_YET_RECRUITINGJining, China
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Ankara City Hospital
NOT_YET_RECRUITINGAnkara, Turkey (Türkiye)
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Ankara Liv Hospital
NOT_YET_RECRUITINGAnkara, Turkey (Türkiye)
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Anyang Tumor Hospital
RECRUITINGAnyang, China
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Bakirköy Dr. Sadi Konuk Eğitim ve Araştirma Hastanesi - Oncology
NOT_YET_RECRUITINGIstanbul, Turkey (Türkiye)
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Beijing Cancer Hospital
NOT_YET_RECRUITINGBeijing, China
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Cancer Hospital Chinese Academy of Medical Sciences
RECRUITINGBeijing, China
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Chang Gung Medical Foundation - LinKou Chang Gung Memorial Hospital
RECRUITINGTaoyuan, Taiwan
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Chi Mei Hospital, Liouying - Department of Oncology
RECRUITINGTainan, Taiwan
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China Medical University Hospital - Internal Medicine - Taichung
NOT_YET_RECRUITINGTaichung, Taiwan
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Chongqing University Cancer Hospital
RECRUITINGChongqing, China
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Complejo Hospitalario de Jaén
NOT_YET_RECRUITINGJaén, Spain
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Complexo Hospitalario Universitario A Coruña
NOT_YET_RECRUITINGA Coruña, Spain
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Ege University Medical Faculty - Pulmonary
NOT_YET_RECRUITINGIzmir, Turkey (Türkiye)
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Erasmus Medisch Centrum
NOT_YET_RECRUITINGRotterdam, Netherlands
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Fudan University Shanghai Cancer Center
NOT_YET_RECRUITINGShanghai, China
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Fundacion Jimenez Diaz
NOT_YET_RECRUITINGMadrid, Spain
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General Hospital of Ningxia Medical University
RECRUITINGYinchuan, China
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Gulhane Training and Research Hospital - Medical Oncology
NOT_YET_RECRUITINGAnkara, Turkey (Türkiye)
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H.C.U.Lozano Blesa
NOT_YET_RECRUITINGZaragoza, Spain
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Harbin Medical University Cancer Hospital
RECRUITINGHarbin, Heilongjiang, China
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Henan Cancer Hospital
NOT_YET_RECRUITINGHenan, China
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Hospital Clínico San Carlos
NOT_YET_RECRUITINGMadrid, Spain
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Hospital Universitari Dexeus Grupo Quironsalud
NOT_YET_RECRUITINGBarcelona, Spain
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Hospital Universitario Donostia
NOT_YET_RECRUITINGSan Sebastián, Spain
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Hospital Universitario La Paz
NOT_YET_RECRUITINGMadrid, Spain
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Hospital Unviersitario Miguel Servet
RECRUITINGZaragoza, Spain
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Hubei Cancer Hospital (Hubei Cancer Research Institute)
RECRUITINGWuhan, China
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Hunan Cancer Hospital
RECRUITINGChangsha, China
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ICO-Institute of Clinical Oncology - Hospital
RECRUITINGTbilisi, Georgia
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ISR-GEO Med Res Clin Healthycore
RECRUITINGTbilisi, K'alak'i T'bilisi, Georgia
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Inonu University Turgut Ozal Medical Center
NOT_YET_RECRUITINGMalatya, Turkey (Türkiye)
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Isala Klinieken Zwolle
NOT_YET_RECRUITINGZwolle, Netherlands
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Istanbul Goztepe Prof. Dr. Suleyman Yalcin City Hospital - Medical Oncology
NOT_YET_RECRUITINGIstanbul, Turkey (Türkiye)
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Jeroen Bosch Ziekenhuis
NOT_YET_RECRUITING's-Hertogenbosch, Netherlands
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Jilin Cancer Hospital
RECRUITINGChangchun, China
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Katip Celebi University Ataturk Research and Training Hospit
NOT_YET_RECRUITINGIzmir, Turkey (Türkiye)
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Kocaeli University Research and Practice Hospital
RECRUITINGKocaeli, Turkey (Türkiye)
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LTD "Israel-Georgian Medical Research Clinic Healthycore"
RECRUITINGTbilisi, Georgia
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LTD "New Hospitals"
RECRUITINGTbilisi, Georgia
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Liaoning cancer hospital
NOT_YET_RECRUITINGShenyang, China
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Ltd New Hospitals
RECRUITINGTbilisi, K'alak'i T'bilisi, Georgia
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Memorial Ankara Hospital
RECRUITINGAnkara, Turkey (Türkiye)
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Multprofil Clinic Consilium Medulla
RECRUITINGTbilisi, K'alak'i T'bilisi, Georgia
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National Cheng Kung University Hospital
RECRUITINGTainan, Taiwan
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National Taiwan University Hospital - Internal Medicine
NOT_YET_RECRUITINGTaipei, Taiwan
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Necmettin Erbakan University Meram
RECRUITINGKonya, Turkey (Türkiye)
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No. 1 Bandong Road, Gongshu District, Hangzhou
RECRUITINGHangzhou, China
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No.123,DAPI Rd. Niaosong Dist, Kaohsiung City 83301 Taiwan, R.O.C.
RECRUITINGKaohsiung City, Taiwan
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Peking University Shenzhen Hospital
NOT_YET_RECRUITINGGuangdong, China
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Rijnstate Ziekenhuis
NOT_YET_RECRUITINGArnhem, Netherlands
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Shandong Cancer Hospital & Institute
RECRUITINGJinan, Shandong, China
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Shanxi Cancer hospital
RECRUITINGTaiyuan, China
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Sichuan cancer hospital
NOT_YET_RECRUITINGChengdu, China
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Sun Yat-sen University Cancer Center
RECRUITINGGuangzhou, China
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Taichung Veterans General Hospital
RECRUITINGTaichung, Taiwan
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Taipei Medical University - Shuang Ho Hospital
RECRUITINGTaipei, Taiwan
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Taipei Medical University - Taipei Medical University Hospital
RECRUITINGTaipei, Taiwan
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Taipei Medical University - WanFang Hospital - Hematology and Oncology
RECRUITINGTaipei, Taiwan
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Taipei Veterans General Hospital
RECRUITINGTaipei City, Taipei, Taiwan
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Taizhou Hospital of Zhejiang Province
NOT_YET_RECRUITINGTaizhou, China
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Tbilisi State Medical University and Ingorokva High Medical Technology University Clinic
RECRUITINGTbilisi, K'alak'i T'bilisi, Georgia
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The Affiliated Hospital of Qingdao University
NOT_YET_RECRUITINGQingdao, China
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The First Affiliated Hospital of Nanchang University
RECRUITINGNanchang, China
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The First Affiliated Hospital of Ustc
RECRUITINGHefei, China
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The First Affiliated Hospital of Xiamen University
NOT_YET_RECRUITINGXiamen, China
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The First Hospital of China Medical University
RECRUITINGShenyang, Liaoning, China
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The Second Affiliated Hospital Zhejiang University School of Medicine
RECRUITINGHangzhou, China
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The Second Affiliated Hospital of Nanchang University
RECRUITINGNanchang, Jiangxi, China
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The Second Affiliated Hospital of Nanchang University
RECRUITINGNanchang, China
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Tianjin Medical University Cancer Institute & Hospital
RECRUITINGTianjin, China
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Trakya University Medical Faculty
NOT_YET_RECRUITINGEdirne, Turkey (Türkiye)
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Xiangya Hospital Central South University
RECRUITINGChangsha, Hunan, China
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Zhongnan Hospital of Wuhan University
RECRUITINGWuhan, China
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İzmir Ekonomi Üniversitesi Medical Point İzmir Hastanesi
NOT_YET_RECRUITINGIzmir, Turkey (Türkiye)
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