RecruitingPhase 3NCT07407803

Evaluation of TQ-B3234 Capsules in Patients With Symptomatic, Non-Surgical Type 1 Neurofibromatosis-Associated Plexiform Neurofibromas

Randomized, Double-Blind, Parallel-Controlled, Multicenter Phase III Clinical Trial Evaluating the Efficacy and Safety of TQ-B3234 Capsules Versus Placebo in Patients With Symptomatic, Non-Surgical Type 1 Neurofibromatosis-Associated Plexiform Neurofibromas


Sponsor

Chia Tai Tianqing Pharmaceutical Group Co., Ltd.

Enrollment

177 participants

Start Date

Mar 31, 2026

Study Type

INTERVENTIONAL

Conditions

Summary

This study aims to demonstrate that in subjects with symptomatic, inoperable plexiform neurofibromas associated with neurofibromatosis type 1, TQ-B3234 capsules significantly improve the objective response rate at Week 24 compared to placebo.


Eligibility

Min Age: 18 Years

Inclusion Criteria8

  • The subject voluntarily joins this study, signs the informed consent form, and demonstrates good compliance.
  • Age ≥18 years (calculated from the date of signing the informed consent form).
  • Diagnosis of symptomatic, non-resectable neurofibromatosis type 1 (NF1)-associated plexiform neurofibroma (PN) requiring systemic therapy per investigator judgment.
  • At least one measurable lesion with a dimension ≥3 cm.
  • There should be no significant changes in the use of chronic neuropathic pain medications within 28 days prior to study enrollment.
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-1.
  • Laboratory tests meet the protocol criteria.
  • Women of childbearing potential must agree to use effective contraception during the study and for 6 months after study completion. A negative serum pregnancy test must be documented within 7 days prior to study enrollment. Men must agree to use effective contraception during the study and for 6 months after study completion.

Exclusion Criteria24

  • Confirmed or suspected malignant glioma or malignant peripheral nerve sheath tumor (MPNST) (excluding low-grade glioma, optic nerve glioma not requiring systemic therapy or radiotherapy); histological confirmation may be required.
  • History of or concurrent other malignancies within 5 years prior to first dosing.
  • Multiple factors affecting oral drug absorption (e.g., dysphagia, chronic diarrhea, intestinal obstruction, major bowel resection).
  • Adverse reactions from prior anti-tumor therapy not recovered to NCI CTCAE v6.0 grade ≤1, except grade 2 alopecia, grade 2 peripheral neuropathy, grade 2 anemia, non-clinically significant and asymptomatic laboratory abnormalities, and hypothyroidism stabilized by hormone replacement therapy.
  • Major surgery, significant traumatic injury, or planned major surgery during the study within 4 weeks prior to first dosing; or presence of long-term non-healed wounds or fractures.
  • History of arterial/venous thrombotic events (e.g., cerebrovascular accident including transient ischemic attack (TIA), deep vein thrombosis, pulmonary embolism) or other severe thromboembolic events within 6 months prior to first dosing.
  • Active viral hepatitis with poor control.
  • Active syphilis requiring treatment.
  • Active tuberculosis, idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonia, radiation pneumonitis requiring treatment, or clinically symptomatic active pneumonia.
  • History of substance abuse that cannot be controlled or presence of psychiatric disorders.
  • Planned or prior allogeneic bone marrow or solid organ transplantation.
  • History of hepatic encephalopathy.
  • History of or current retinal vein occlusion (RVO), retinal pigment epithelial detachment (RPED), central serous retinopathy (CSR), glaucoma, or other significant ocular abnormalities (e.g., intraocular pressure >21mmHg).
  • Inability to undergo MRI and/or presence of MRI contraindications.
  • Major cardiovascular disease.
  • Active or uncontrolled severe infection.
  • Renal failure requiring hemodialysis or peritoneal dialysis.
  • History of immunodeficiency, including HIV-positive or other acquired/congenital immunodeficiency diseases.
  • History of epilepsy.
  • Tumor-related symptoms and treatment.
  • Known hypersensitivity to study drug excipients.
  • Participation in and use of other PN clinical trial drugs within 4 weeks prior to first dosing.
  • Pregnant or lactating participants.
  • Any other condition that, in the investigator's judgment, poses a serious risk to participant safety or interferes with study completion.

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Interventions

DRUGTQ-B3234 capsules

TQ-B3234 is an antitumor molecular targeted drug, a selective mitogen-activated protein kinase 1 and 2 (MEK1/2) inhibitor. It primarily inhibits the mitogen-activated protein kinase (MEK) protein (an upstream regulator of the extracellular signal-regulated kinase (ERK) pathway), thereby affecting the mitogen-activated protein kinase (MAPK) pathway and suppressing cell proliferation. MEK inhibitors are recognized to play a significant role in the pathogenesis of plexiform neurofibromas associated with neurofibromatosis type 1.

DRUGTQ-B3234 placebo

TQ-B3234 placebo without drug substance.


Locations(29)

The First Affiliated Hospital of Anhui Medical University

Hefei, Anhui, China

Peking Union Medical College Hospital

Beijing, Beijing Municipality, China

Xuanwu Hospital Capital Medical University

Beijing, Beijing Municipality, China

Beijing Tiantan Hospital, Capital Medical University

Beijing, Beijing Municipality, China

Peking University Third Hospital

Beijing, Beijing Municipality, China

The Southwest Hospital of Amu

Chongqing, Chongqing Municipality, China

The First Affiliated Hospital of Fujan Medical University

Fuzhou, Fujian, China

Gansu Provincial Cancer Hospital

Lanzhou, Gansu, China

Sun Yat-Sen University Cancer Center

Guangzhou, Guangdong, China

Dermatology Hospital of Southern Medical University (Guangdong Provincial Dermatology Hospital / Guangdong Center for the Prevention and Control of Sexually Transmitted Diseases and Leprosy

Guangzhou, Guangdong, China

Guangxi Medical University Cancer Hospital ( Guangxi Cancer InstituteGuangxi Cancer Hospital & Medical University Oncology School & Cancer Center)

Nanning, Guangxi, China

Guizhou Provincial People's Hospital

Guiyang, Guizhou, China

The second hospital of Hebei medical university

Shijiazhuang, Hebei, China

The Second Affiliated Hospital of Henan University of Science and Technology

Luoyang, Henan, China

The First Affiliated Hospital Of Zhengzhou University

Zhengzhou, Henan, China

Renmin Hospital of Wuhan University(Hubei General Hospital)

Wuhan, Hubei, China

Hunan Children's Hospital

Changsha, Hunan, China

Nanjing Drum Tower Hospital

Nanjing, Jiangsu, China

The First Affiliated Hospital of China Medical University

Shenyang, Liaoning, China

Xijing hospital

Xi'an, Shaanxi, China

Qilu Hospital of Shandong University

Jinan, Shandong, China

Qilu Hospital of Shandong University

Jinan, Shandong, China

Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine

Shanghai, Shanghai Municipality, China

Shanxi Cancer Hospital

Taiyuan, Shanxi, China

West China Hospital, Sichuan University

Chengdu, Sichuan, China

Sichuan Academy of Medical Science&Sichuan Provincial People' Hospital

Chengdu, Sichuan, China

Tianjin Medical University Cancer Institute & Hospital

Tianjin, Tianjin Municipality, China

The First Affiliated Hospital Of Kunming Medical University

Kunming, Yunnan, China

Zhejiang Provincial People'S Hospital

Hangzhou, Zhejiang, China

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NCT07407803


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