Exploring a new skin test for tuberculosis in various age groups

Phase 2 Clinical Trial of Randomized, Blinded, Positive-controlled to Explore the Skin Test Dosage of EEC in People Aged 18 to 65 Years Old and the Safety and Preliminary Efficacy in People Aged 3 to 75 Years Old.

This study is testing a new skin test for tuberculosis using a special protein to see how well it works in people aged 3 to 75.

Quick facts

• Phase: Phase 2
• Study type: Interventional
• Enrollment: 420 (estimated)
• Ages: 3 Years to 75 Years
• Sex: All
• Sponsor: Chengdu CoenBiotech Co., Ltd (Industry-sponsored)
• Locations: 6 sites (Beijing, Beijing and 5 other locations)
• Trial ID: NCT06305104 on ClinicalTrials.gov

What this trial studies

This clinical trial is designed to evaluate the safety and preliminary efficacy of a recombinant mycobacterium tuberculosis fusion protein (EEC) as a skin test for tuberculosis. The study involves a randomized, blind, positive-controlled approach with participants aged 3 to 75 years, focusing on different dosage levels of EEC. Healthy subjects, tuberculosis patients, and non-TB patients with lung diseases will receive intradermal injections of EEC and a control drug, with assessments of their reactions and assay results. The goal is to determine the optimal dosage for clinical diagnosis of tuberculosis.

Who should consider this trial

Good fit: Ideal candidates include healthy individuals and tuberculosis patients aged 3 to 75 years old.

Not a fit: Patients with a history of tuberculosis or close contact with tuberculosis patients may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to a more effective and safer skin test for diagnosing tuberculosis.

How similar studies have performed: Other studies have explored similar approaches, but the specific use of EEC in this context is relatively novel.

Eligibility criteria

Inclusion Criteria:

* For healthy subjects:

  1. At the time of enrollment - For healthy subjects:enrollment is 3 \~ 75 years old (including 3 years old and 75 years old), regardless of gender ;
  2. Guardians of persons aged 3-7 years , persons aged 8-17 years old and their guardians, persons aged 18-75 years old themselves and/or their guardians (spouse or children) agree to participate in this trial and sign an informed consent form;
  3. The person and/or guardian can comply with the requirements of the clinical trial protocol to participate in /accompany the subject to follow- up visits;
  4. After medical history inquiry, there is no history of tuberculosis (including intrapulmonary and external tuberculosis ) and close contact history with tuberculosis patients (referring to direct contact with registered tuberculosis patients from 3 months before diagnosis to 14 days after starting anti-tuberculosis treatment);
  5. Those who have no clinical symptoms of tuberculosis poisoning and whose chest imaging examination (for subjects aged 15 to 75 years old) is normal or abnormal without clinical significance;
  6. Normal or abnormal measurements of vital signs ( axillary temperature, pulse , respiration , blood pressure ) and electrocardiogram have no clinical significance; \[ The axillary temperature of all subjects was measured \< 37.3°C ; blood pressure was measured in subjects aged 18-75 years (systolic blood pressure \<160 millimetres of mercury（mmHg） and diastolic blood pressure \<100mmHg) ; pulse and respiration were determined by the researcher based on the subject's age\]
  7. Physical examinations are normal or abnormal with no clinical significance;
  8. Laboratory tests including blood routine, urine routine, and blood biochemistry tests were all normal or abnormal with no clinical significance.
* For patients with tuberculosis (including pulmonary tuberculosis):

  1. Those who was diagnosed with tuberculosis/ pulmonary tuberculosis according to the "People's Republic of China Health Industry Standard Pulmonary Tuberculosis Diagnostic Criteria " combined with the "Technical Guidelines for Tuberculosis Prevention and Control in China ( 2021 Edition )" (accepted clinical comprehensive analysis diagnosis);
  2. The age at the time of enrollment is 3 to 75 years old (including 3 years old and 75 years old), regardless of gender ;
  3. Guardians of persons aged 3-7 years old, persons aged 8-17 years old and their guardians, persons aged 18-75 years old themselves and/ or their guardians (spouse or children) agree to participate in this trial and sign an informed consent form;
  4. The person and /or guardian may comply with the requirements of the clinical trial protocol and participate in follow-up visits.
* For patients with non-tuberculous lung disease

  1. Patients with clear clinical diagnosis of pulmonary disease, and the clinician can rule out pulmonary tuberculosis and extrapulmonary tuberculosis based on the patient's clinical manifestations, imaging and laboratory tests (including IGRA );
  2. Age at the time of enrollment is 18 to 65 years old (including 18 years old and 65 years old), regardless of gender;
  3. Those who agree to participate in this trial and sign the informed consent form;
  4. Those who may comply with the requirements of the clinical trial protocol and participate in follow-up visits

Exclusion Criteria:

* Those with known or suspected (or high-risk) severe immune diseases, immune function impairment or abnormalities ( except HIV infection /AIDS ), including:
* who have convulsions, epilepsy, a history of mental illness and / or a family history of mental illness (immediate relatives);
* People with allergies, such as those who have a history of allergies to two or more drugs or foods, or those who are known to be allergic to the components of this medicine;
* Those currently suffering from acute infectious diseases (such as measles, whooping cough, influenza, etc.), acute conjunctivitis, acute otitis media, and generalized skin diseases;
* After consultation, have a history of past or current serious heart, liver, kidney, digestive system, respiratory system, nervous system, mental disorder and metabolic disorders;
* Those who are currently suffering from acute febrile illness; or those who have used antipyretic, analgesic and anti-allergic drugs within 3 days before the skin test and which may affect the research evaluation as assessed by the researcher ;
* People with serious infections (such as pyoderma, severe eczema, etc.);
* who are participating in or participating in any other new drug clinical trials within 3 months;
* Have received non-live vaccines within 7 days before the skin test , or have received live attenuated vaccines within 28 days ;
* Lactating or pregnant women, or female subjects of childbearing age who have a positive pregnancy test before enrollment and who have not taken effective contraceptive measures 2 weeks before enrollment.
* Those with a history of drug abuse;
* Any other circumstances that the investigator believes may affect the evaluation of the study.

Where this trial is running

Beijing, Beijing and 5 other locations

• Beijing Chest Hospital — Beijing, Beijing, China (Recruiting)
• Wuhan Institute for Tuberculosis Control — Wuhan, Hubei, China (Recruiting)
• Changde First People's Hospital — Changde, Hunan, China (Recruiting)
• Jiangsu Province Centers for Disease Control and Prevention — Nanjing, Jiangsu, China (Recruiting)
• Xuzhou Infectious Disease Hospital — Xuzhou, Jiangsu, China (Recruiting)
• Public health clinical center of chengdu — Chengdu, Sichuan, China (Recruiting)

Study contacts

• Study coordinator: Naihui Chu, PhD

Conditions Tuberculosis