SG1906 for CLDN18.2-Positive Solid Tumors

Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age18+
SponsorHangzhou Sumgen Biotech Co., Ltd.

About this trial

This is a Phase Ia/Ib Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of SG1906 in Patients with CLDN18.2-Positive Locally Advanced Unresectable or Metastatic Solid Tumors.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Understand and voluntarily sign the informed consent form (ICF).

Age ≥18 years.

Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1.

Expected survival time of ≥3 months.

Disqualifiers

Presence of active central nervous system metastatic lesions; presence of metastases to the brainstem or meninges, spinal cord metastases or compression. Exception: patients with previously treated brain metastases (e.g., surgery, radiation therapy) who are clinically stable for at least 4 weeks after treatment (calculated from the first dose of investigational drug) and have discontinued corticosteroids for ≥14 days prior to the administration of investigational drug; patients with untreated, asymptomatic brain metastases (i.e., no neurological symptoms, no need for corticosteroids, brain metastases ≤1.5 cm in length, no significant edema around the brain metastases).

Active autoimmune disease requiring systemic therapy within the past 2 years (e.g., use of immunomodulatory drugs, corticosteroids, or immunosuppressive medications); related replacement therapy is allowed (e.g., thyroid hormone, insulin, or physiologic corticosteroid replacement for renal or pituitary insufficiency).

Pyloric obstruction or any other condition that can cause long-term chronic nausea, persistent recurrent vomiting (≥3 vomit episodes in 24 hours) or diarrhea.

Patients who have recently developed gastrointestinal bleeding (i.e., a history of hematemesis, hematochezia, or melena within the past 3 months) without evidence of recovery confirmed by endoscopy or colonoscopy; or patients with evidence of risk of gastric bleeding.

Trial design

Design model

Single group

Treatments tested in this trial

  • SG1906

    Drug

    Phase 1a will use an accelerated titration-Bayesian optimal interval (AT-BOIN) design with 7 dose cohorts: 0.1 mg/kg, 0.3 mg/kg, 1 mg/kg, 3 mg/kg, 6 mg/kg, 9 mg/kg, and 12 mg/kg by IV infusion. Accelerated titration (i.e., 1 patient each) will be applied to the first 2 cohorts.

Treatment groups

60 Participants
are divided into 1 treatment group
Group A: SG1906Experimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Incidence of Treatment-Emergent Adverse Events

Number and percentage of AE which is calculated by worst CTCAE grade by CTCAE 5.0

Time frame
Through study completion, an average of one year
2

MTD/MAD/ RP2D

To determine the maximum tolerated dose (MTD) or maximum administered dose (MAD) for intravenous (IV) administration of SG1906 in patients with CLDN18.2-positive locally advanced unresectable or metastatic solid tumors.; To preliminarily determine the recommended Phase 2 dose (RP2D) of SG1906 given intravenously in patients with CLDN18.2-positive locally advanced unresectable or metastatic solid tumors.

Time frame
Through study completion, an average of one year

Secondary outcomes

1

Pharmacokinetics (PK): AUC

The area under the curve (AUC) of serum concentration of the drug after the administration.

Time frame
Through study completion, an average of one year
2

Pharmacokinetics (PK): Cmax

Cmax to maximum drug concentration.

Time frame
Through study completion, an average of one year
3

Pharmacokinetics (PK):limination half-life (T1/2)

limination half-life (T1/2) of the drug after administration.

Time frame
Through study completion, an average of one year
4

receptor occupancy (RO)

receptor occupancy (RO) of CD47 on the surface of peripheral blood cells;

Time frame
Through study completion, an average of one year

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.