- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT01638520
Safety and Efficacy of Blocking IL-4 With Pascolizumab in Patients Receiving Standard Therapy for Pulmonary Tuberculosis
Safety and Efficacy of Blocking IL-4 With Pascolizumab in Patients Receiving Standard Combination Therapy for Pulmonary Tuberculosis (TB): a Randomized, Double-blind, Placebo-controlled, Proof-of-concept Clinical Trial
New approaches are needed to achieve more rapid elimination of dormant mycobacteria and thereby shorten treatment for drug-sensitive and drug-resistant tuberculosis (TB). Dormant mycobacteria are relatively resistant to antibacterial drugs and approaches that enhance immune clearance have the potential to be more effective. Interleukin-4 (IL-4) is a key cytokine in the immune response to TB that may impair the clearance of mycobacteria. We hypothesize that pascolizumab, an anti-IL-4 monoclonal antibody, might be of value as an adjunct to standard treatment.
The aims of this trial are to determine whether administration of pascolizumab as an adjunct to standard combination treatment for drug-sensitive TB produces changes in one or more parameters of bacterial or host response (including bacterial clearance, host clinical status, immune response, bacterial and host transcriptomics, lung imaging) that may indicate potential for enhanced sterilization and to confirm the safety of blocking IL-4 (previously demonstrated in healthy volunteers and patients with asthma) in patients with TB.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Tipo di studio
Iscrizione (Effettivo)
Fase
- Fase 2
Contatti e Sedi
Luoghi di studio
-
-
-
Manila, Filippine
- Lung Centre Philippines
-
Manila, Filippine
- Philippines Tuberculosis Society Inc.
-
-
-
-
-
Kuala Lumpur, Malaysia
- University Malaya Medical Centre
-
Kuala Lumpur, Malaysia
- Institute of Respiratory Medicine
-
-
-
-
-
Singapore, Singapore
- Changi General Hospital
-
Singapore, Singapore
- National University Hospital, Singapore
-
Singapore, Singapore
- Ng Teng Fong General Hospital
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Aged 21 -75 years of age
- Male or female: females eligible only if not of childbearing potential or agree to remain abstinent or use an appropriate contraceptive method during the study.
- Confirmed pulmonary TB by smear microscopy and Gene Xpert™
- Absence of rifampicin resistance on molecular probe (Gene Xpert™)
- Estimated to be able to produce at least 5ml of sputum per 24 hour period.
- No previous history of anti-TB therapy for active disease (treatment for latent disease acceptable).
- Willing to comply with the study visits and procedures
- Willing and able to provide written informed consent
Exclusion Criteria:
- More than 28 days of standard anti-TB chemotherapy at the time of randomization.
- Disseminated TB (lymphadenopathy is acceptable)
- Underlying serious chronic diseases such as those of the liver, kidney disease, blood disorders and Type I diabetes (controlled Type II diabetes is acceptable) or any significant organ dysfunction.
- History of myocardial infarction, congestive heart failure or arrhythmia within 6 months of screening
- History or evidence of chronic alcohol consumption or drug abuse
- Current autoimmune disease or history of autoimmune disease.
- Known or suspected hypersensitivity to any component of the trial medication (sodium phosphate, sodium chloride, glycine, sucrose, polysorbate 80)
- Chronic use of an immunosuppressant
- Treatment with any monoclonal antibody within 6 months of randomization
- Vaccination within the 6 weeks prior to randomization (patients who have received influenza vaccination can enroll at 2 weeks following vaccination).
- Seropositive for human immunodeficiency virus-1 or 2; hepatitis B surface antigen (HBsAg) or hepatitis C virus (HCV) antibodies at screening
- Creatinine > 1.4 times upper limit of normal or ALT greater than 2.5 times upper limit of normal on screening blood tests
- QTc >450 msec on ECG performed at screening
- Women who are currently pregnant or breastfeeding
- Any other significant condition that would, in the opinion of the investigator, compromise the patient's safety or outcome in the trial.
- Participation in other clinical intervention trial or research protocol (Participation in other studies that do not involve an intervention may be allowed, but this must be discussed and approved by Chief Investigator )
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Doppio
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Pascolizumab
The dose of study medication will be calculated using the patient's body weight and the appropriate dosing regimen based on the cohort of enrollment.
The medication will be administered by slow intravenous infusion over 1 hour under close medical supervision.
|
0.05mg/kg - 10mg/kg Pascolizumab according to dosing cohort
|
|
Comparatore placebo: Placebo
For patients randomized to placebo, Sterile 0.9% w/v Sodium Chloride will be used for Injection, using the same volume that would have been prepared if the patient had been randomized to receive pascolizumab.
|
Saline (volume determined based on weight of patient, and cohort of enrollment)
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Efficacy - Time to detection on liquid culture of sputum on Week 8
Lasso di tempo: 8 weeks post intervention
|
8 weeks post intervention
|
|
|
Co-primary outcome measure - safety
Lasso di tempo: Upto 24 weeks via follow-up visits/assessments and 24-96 weeks via phone assessments
|
Adverse events considered at least possibly related to study medication and that are classified by the site investigator as serious and/or grade IV severity
|
Upto 24 weeks via follow-up visits/assessments and 24-96 weeks via phone assessments
|
Misure di risultato secondarie
Misura del risultato |
Lasso di tempo |
|---|---|
|
Sputum culture status (positive or negative) on liquid culture at week 8
Lasso di tempo: 8 weeks
|
8 weeks
|
|
Rate of change (area under the curve) from baseline to week 8 in the time to positivity in liquid culture of sputum
Lasso di tempo: 8 weeks
|
8 weeks
|
|
Rate of change in serial sputum colony counts on solid cultures from baseline to week 8
Lasso di tempo: 8 weeks
|
8 weeks
|
|
Rate of change of RPF-dependent serial sputum colony counts from baseline to week 8
Lasso di tempo: 8 weeks
|
8 weeks
|
|
Sputum culture status (positive or negative) on solid culture at week 8
Lasso di tempo: 8 weeks
|
8 weeks
|
|
Rate of change of sputum smear lipid-body positive mycobacteria from baseline to week 8
Lasso di tempo: 8 weeks
|
8 weeks
|
|
Serum IL-4 levels (free and drug-bound)
Lasso di tempo: 24 weeks
|
24 weeks
|
|
Time to resolution of fever
Lasso di tempo: 24 weeks
|
24 weeks
|
|
Time to resolution of all TB symptoms
Lasso di tempo: 24 weeks
|
24 weeks
|
|
Resolution of chest X-ray changes at week 24
Lasso di tempo: 24 weeks
|
24 weeks
|
|
Resolution of PET/MRI changes at week 8 and week 24
Lasso di tempo: 24 weeks
|
24 weeks
|
|
TB relapse at any time up to week 96
Lasso di tempo: 96 weeks
|
96 weeks
|
|
Anti-pascolizumab antibodies
Lasso di tempo: 24 weeks
|
24 weeks
|
Collaboratori e investigatori
Collaboratori
Investigatori
- Investigatore principale: Nick Paton, National Univesity, Singapore
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Anticipato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- DSRB 2012/02212
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .