Toripalimab and JS004 Combined With Platinum-based Chemotherapy for Relapsed and Extensive-stage Small Cell Lung Cancer

Shanghai Pulmonary Hospital, Shanghai, China

Status and phase: Not yet enrolling; Phase 2

Conditions: Small Cell Lung Cancer Recurrent; Small Cell Lung Cancer Extensive Stage

Treatments: Drug: Toripalimab; Drug: Etoposide; Drug: Platinum; Drug: JS004

Study type: Interventional

Funder types: Other

Identifiers

NCT06648200

LungMate-031

Details and patient eligibility

About

For extensive-stage small cell lung cancer (SCLC), platinum-chemotherapy (cisplatin or carboplatin) combined with etoposide as the first-line treatment is recommended. However, the recurrence rate is extremely high after the initial first-line treatment. For those who relapse or progress within more than six minths after the end of the-first-line treatment, chose the current guideline recommendation trearment plan has the poor prognosis. A new immunotherapeutic strategy is needed to achieve better anti-tumor effects. JS004 is a new antibody targeting B and T lymphocyte attenuator (BTLA), which restrains immune cells; function and leads to immune escape of tumor cells. The combination of PD-1 and BTLA antibodies has shown a good therapeutic effect in solid tumors. This trial aims to investigate the efficacy and safety of the therapeutic regimen of toripalimab and JS004 combined with platinum-based doublet chemotherapy in extensive-stage SCLC or relapsed within more than six months after radical treatment SCLC.

Enrollment: 100 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. The patient shall sign the Informed Consent Form;
2. Aged 18 ≥ years;
3. Histological or cytological diagnosis of SCLC by needle biopsy or EBUS, and extensive stage or recurrent confirmed by imageological examinations or relapsed within more than six months after radical treatment SCLC;
4. Eastern Cooperative Oncology Group (ECOG) performance-status score of 0 or 1;
5. Life expectancy is at least 12 weeks;
6. At least 1 measurable lesion according to RECIST 1.1;
7. Patients with good function of other main organs (liver, kidney, blood system, etc.);
8. Fertile female patients must voluntarily use effective contraceptives from the start of the trial to within 30 days after its completion, and urine or serum pregnancy test results within 7 days prior to enrollment are negative;
9. Unsterilized male patients must voluntarily use effective contraception during the trial period and for 30 days after its conclusion.

Exclusion criteria

1. Patients with a malignancy other than SCLC within five years prior to the start of this trial;
2. Participants with any unstable systemic disease (including uncontrolled hypertension, severe arrhythmia, etc.);
3. With activate or suspectable autoimmune disease, or autoimmune paracancer syndrome requiring systemic treatment;
4. Participants who are allergic to the test drug or any auxiliary materials;
5. Participants with active hepatitis B, hepatitis C or HIV;
6. Participants with Interstitial lung disease currently;
7. Pregnant or lactating women;
8. Any malabsorption;
9. Participants suffering from nervous system diseases or mental diseases that cannot cooperate;
10. Other factors that researchers think it is not suitable for enrollment.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

---

100 participants in 2 patient groups

Therapy With Toripalimab Combined With Platinum-based Doublet Chemotherapy

Active Comparator group

Description:

In this arm, 50 patients with extensive-stage small cell lung cancer or relapsed within more than 6 months after SCLC radical treatment will receive 4 circles of toripalimab combined with platinum-based doublet chemotherapy. Then patients received maintenance treatment with toripalimab until the disease progressed.

Treatment:

Drug: Platinum

Drug: Etoposide

Drug: Toripalimab

Therapy With Toripalimab and JS004 Combined With Platinum-based Doublet Chemotherapy

Experimental group

Description:

In this arm, 50 patients with extensive-stage small cell lung cancer or relapsed within more than 6 months after SCLC radical treatment will receive 4 circles of toripalimab and JS004 combined with platinum-based doublet chemotherapy. Then patients received maintenance treatment with toripalimab and JS004 until the disease progressed.

Treatment:

Drug: Platinum

Drug: JS004

Drug: Etoposide

Drug: Toripalimab