Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 18 to 75

Intrapleural TolueneSulfonamide in malignant pleural effusion: early safety and activity

Official title: First-in-Human Expanded Cohort Study of Intrapleural Administration of TolueneSulfonamide in Patients With Malignant Pleural Effusion

Run by China-Japan Friendship Hospital · NCT07332858 · Data updated 2026-11-12

This study tests intrapleural injections of TolueneSulfonamide in adults with malignant pleural effusion to see if it is safe and could help reduce the effusion.

More Non-Small Cell Lung Cancer trials

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment105 (estimated)
SponsorChina-Japan Friendship Hospital
Academic / other
Locations1 site (Beijing, Beijing Municipality)
StatusRecruiting
StartedApril 24, 2026
Main results expectedOctober 30, 2028
Study endsOctober 30, 2028
Registry record updatedMay 15, 2026
Trial IDNCT07332858 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–75 with NSCLC-related malignant pleural effusion, ECOG 0–2, symptomatic dyspnea, and no recent intrathoracic drug treatment.

Probably not a fit

Patients with rapidly advancing disease, poor performance status, or non-responsiveness to intrapleural therapy may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a first-in-human expansion study with two parts. Part 1 assesses safety and explores dose options for intrapleural TolueneSulfonamide in patients with malignant pleural effusion due to non-small cell lung cancer. Part 2 evaluates clinical activity and efficacy in a multicenter, randomized design comparing TolueneSulfonamide plus catheter drainage to catheter drainage with saline. The trial progresses from a single-arm safety phase to a double-blind, controlled phase after establishing safety. Patients will be followed for safety and preliminary signs of benefit related to pleural effusion control.

Why it matters

Potential benefit: If successful, the treatment could lessen pleural buildup and improve breathing and quality of life for patients with malignant pleural effusion.

How similar studies have gone: Early-stage intrapleural therapies have shown variable safety and signals of activity in pleural malignancies, but this is a first-in-human evaluation of TolueneSulfonamide in this setting.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age between 18 and 75 years (inclusive) at the time of signing the informed consent form.
2. Histologically or cytologically confirmed malignant pleural effusion, with the primary tumor diagnosed as non-small cell lung cancer (NSCLC).
3. Eastern Cooperative Oncology Group (ECOG) performance status of 0-2, with an expected survival of at least 3 months.
4. Presence of dyspnea symptoms.
5. No prior local thoracic treatment within 1 month before enrollment, including intrapleural drug administration or thoracic radiotherapy (diagnostic thoracentesis is permitted).
6. Except for the subject's current stable systemic anti-tumor therapy, any other ongoing tumor-related treatments must be suspended or discontinued after evaluation by the investigator to ensure they do not interfere with the assessment of PTS treatment.
7. Fully understands the study objectives and procedures, agrees to participate in the study, and provides written informed consent.

Exclusion Criteria:

1. History of allergy or hypersensitivity to PTS or any of its excipients.
2. Presence of uncontrolled intrapleural infection or severe loculated pleural effusion that is difficult to manage.
3. Participation in another interventional clinical study within 3 months prior to enrollment (diagnostic studies are excluded).
4. Severe organ dysfunction, including but not limited to coagulation disorders, congestive heart failure, malignant arrhythmias, coronary artery disease requiring long-term medication, valvular heart disease, myocardial infarction, or refractory hypertension; severe cardiac, hepatic, or renal insufficiency, or active bleeding or thrombotic risk.
5. Presence of uncontrolled infectious wounds.
6. Pregnant or breastfeeding women.
7. Any other condition that, in the investigator's judgment, makes the subject unsuitable for participation in this study.
8. Criteria for withdrawal from the study.

Where it's running

  • China-Japan Friendship Hospital
    Beijing, Beijing Municipality, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.