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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04310930
Other study ID # U1111-1209-0672
Secondary ID
Status Recruiting
Phase Phase 2/Phase 3
First received
Last updated
Start date March 2, 2020
Est. completion date August 31, 2024

Study information

Verified date August 2023
Source The University of Queensland
Contact Claire Wainwright, MD
Phone +61730697322
Email claire.wainwright@health.qld.gov.au
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Mycobacterium abscessus (MABS) is a group of rapid-growing, multi-drug resistant non-tuberculous mycobacteria (NTM) causing infections in humans. MABS pulmonary disease (MABS-PD) can result in significant morbidity, increased healthcare utilisation, accelerated lung function decline, impaired quality of life, more challenging lung transplantation, and increased mortality. While the overall numbers affected is small, the prevalence of infections is increasing worldwide. The Finding the Optimal Regimen for Mycobacterium abscessus Treatment (FORMaT) trial aims to produce high quality evidence for the best treatment regimens to maximise health outcomes and minimise toxicity and treatment burden, as well as developing biomarkers (serology, gene expression signatures, and radiology) to guide decisions for starting treatment and measuring disease severity in patients with MABS PD.


Description:

Mycobacterium abscessus (MABS) are a group of non-tuberculous mycobacteria (NTM) found in water and soil habitats that exhibit high levels of intrinsic multi-drug resistance. They are recognised opportunistic human pathogens capable of causing chronic pulmonary disease (MABS-PD), predominantly in individuals with underlying inflammatory lung diseases. Finding the Optimal Regimen for Mycobacterium abscessus Treatment (FORMaT) is an iterative, standing, platform trial with innovative and adaptive properties that evaluate and develop the optimal combinations of therapies for children and adults with MABS-PD to clear MABS infection with acceptable tolerance. We will use these opportunities afforded by the clinical trial platform to establish discovery studies to: (i) understand the effects of disease and treatment on health-related quality of life, (ii) determine cost effectiveness of interventions, (iii) optimise pharmacokinetic drug dosing, (iv) understand susceptibility to MABs-PD, (v) develop biomarkers of clinical disease, (vi) investigate genomics of MABs strains causing MABs-PD and development of antimicrobial resistance. FORMaT provides a pragmatic design to address challenges to develop an evidence base for the first time for MABS-PD. Initially, the trial has been designed to test therapies that are currently the basis for treatment guidelines for MABS-PD. The trial has the capacity to add new treatments and to eliminate therapies because of futility as they either lack efficacy or cause unacceptable toxicity. Novel therapeutic approaches are then tested against the previously determined optimal approaches, thus leading in an iterative fashion to improve microbiological clearance, and health outcomes associated with MABS-PD. The trial is designed as a series of trials within the main trial to enable investigation of the different phases of treatment; intensive (intravenous treatment phase) and consolidation (oral and or inhaled treatment phase) based on clinical guidelines. The primary outcome for each trial is microbiological clearance with clinical tolerance (Grade 1 or 2) based on Common Terminology Criteria for Adverse Events (version 5). This enables subjects to continue in the trial even if tolerance is poor or they change treatments in a specific phase of the trial as those events contribute to the primary outcome determination.


Recruitment information / eligibility

Status Recruiting
Enrollment 300
Est. completion date August 31, 2024
Est. primary completion date June 30, 2024
Accepts healthy volunteers No
Gender All
Age group N/A and older
Eligibility Intervention Cohort Inclusion Criteria: - Subjects with respiratory cultures positive for M. abscessus (MABS) (sub species abscessus, sub species bolletii, or subspecies massiliense) are required to meet all 3 American Thoracic Society criteria (clinical, radiological and microbiological) for MABS pulmonary disease (PD). - Subjects with mixed NTM infections (slow growers + MABS) (adding ethambutol will be permitted if required by the treating physician). - Willingness and ability to comply with trial regimens and the study visit requirements. Intervention cohort Exclusion Criteria: - Receiving active treatment for MABS within the previous 12 months, except azithromycin for participants with cystic fibrosis and bronchiectasis. - Healthy volunteers may not participate. - Pregnancy or planning to continue breastfeeding - Known hypersensitivity to any of the therapies for which no alternate options(s) have been provided. Observation Cohort Inclusion Criteria: - At least one positive respiratory MABS culture - Willingness and ability to comply with the study visit requirements. Observation cohort Exclusion Criteria for: - Receiving active treatment for MABS within the previous 12 months, except azithromycin for participants with cystic fibrosis and bronchiectasis. - Healthy volunteers may not participate.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Amikacin
Adults: Intravenous amikacin 5mg/kg once daily or 7.5mg/kg twice daily or 20-25 mg/kg thrice weekly. Children:Intravenous amikacin 15-30 mg/kg once daily, maximum dose 1500mg
Tigecycline
Adults: Intravenous Tigecycline 25 mg increasing by 5 mg every two doses until either maximum dose reached (50mg) or until patient is unable to tolerate twice daily. Children (=8 years of age) intravenous tigecycline: Day 1- 0.6mg/kg twice daily to a maximum of 25mg. Day 2- 0.6mg/kg (maximum 25mg) in the morning, 1.2 mg/kg (maximum 50mg) at night. Day 3- 1.2mg/kg (maximum 50 mg) twice daily
Imipenem
Adults: Intravenous Imipenem (=50kg) 500mg twice daily (<50kg) 15 mg/kg twice daily. Children: intravenous imipenem Day 1- 2- 25mg/kg (maximum 1g) twice daily. DAY 3- 25mg/kg (maximum 1g) four times daily (drop to 3 if not tolerated).
Cefoxitin
Adults: If imipenem is poorly tolerated intravenous cefoxitin 200 mg/kg thrice daily. Children: if imipenem is poorly tolerated intravenous cefoxitin 50mg/kg (maximum 4g) four times daily.
Azithromycin
Adults: Oral azithromycin 500mg (=40kg) once daily, (<40kg) 250mg once daily.During consolidaiton: 500mg (=40kg) thrice weekly, (<40kg) 250mg thrice weekly. Children: Oral azithromycin:10mg/kg (maximum 500mg) once daily. During consolidation 10mg/kg once daily maximum 500mg.
Clarithromycin
Adult: If azithromycin is poorly tolerated use oral clarithromycin 500mg twice daily.Children: If azithromycin is poorly tolerated use oral clarithromycin. In children 1 month old- 11years of age the following dosing applies: <8kg: 7.5mg/kg twice daily, maximum dose 62.5mg, 8-11kg: 62.5mg twice daily, maximum dose 62.5mg, 12-19 kg: 125mg twice daily, maximum dose 125mg, 20-29 kg: 187.5mg twice daily, maximum dose 187.5mg, 30-40 kg: 250mg twice daily, maximum dose 250mg, Children 12-18 years of age: 500 mg twice daily
Clofazimine
Adult: Oral clofazimine 100mg once daily. Children: Oral clofazimine: 3-5mg/kg once daily. Maximum dose of 50mg once daily if <40kg or 100mg if =40kg once daily.
Ethambutol
Adults: with confirmed mixed NTM infections (slow growers + MABS) oral ethambutol can be added at either 15 mg/kg once daily or 25mg/kg thrice weekly. Children with confirmed mixed NTM infections (slow growers + MABS) oral ethambutol can be added at 20 mg/kg once daily.
Amikacin
adult: Inhaled amikacin 500mg twice daily. Children: Inhaled amikacin 500mg twice daily
Linezolid
Adult: during consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin, bedaquiline or rifabutin) guided by participant susceptibility and tolerance. Oral linezolid 600mg once daily. Children: during consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin or rifabutin) guided by participant susceptibility and tolerance. Age 1 week - 9 years 10mg/kg twice daily maximum dose of 300mg. Age 10-12 years 10mg/kg twice daily maximum dose of 600mg. >12 years 600mg once daily.
co-trimoxazole
Adult: during consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin, bedaquiline or rifabutin) guided by participant susceptibility and tolerance. Oral Co-trimoxazole (TMP-SMX) 160/800mg twice daily. Children: During consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin or rifabutin) guided by participant susceptibility and tolerance. Oral co-trimoxazole 5mg TMP/kg maximum dose of 160mg TMP/ 800mg SMX twice daily.
Doxycycline
Adult: during consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin, bedaquiline or rifabutin) guided by participant susceptibility and tolerance. Oral doxycycline 100mg once daily. Children: During consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin or rifabutin) guided by participant susceptibility and tolerance. Oral doxycycline (ages = 8 years) 2mg/kg once daily maximum dose 100mg.
Moxifloxacin
Adult: during consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin, bedaquiline or rifabutin) guided by participant susceptibility and tolerance. Oral moxifloxacin 400mg once daily. Children: During consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin or rifabutin) guided by participant susceptibility and tolerance. Oral moxifloxacin 10-15mg/kg once daily, maximum dose 400mg
Bedaquiline
Adult: during consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin, bedaquiline or rifabutin) guided by participant susceptibility and tolerance. Oral bedaquiline (18-64 years of age) 400mg once daily for the first two weeks followed by 400mg thrice weekly for 22 weeks (maximum duration of 6 months).
Rifabutin
Adult: during consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin, bedaquiline or rifabutin) guided by participant susceptibility and tolerance. Oral rifabutin: 5mg/kg once daily, maximum 300-450mg. Children: During consolidation in combination with one to three oral antibiotics (co-trimoxazole, doxycycline, moxifloxacin or rifabutin) guided by participant susceptibility and tolerance. Oral rifabutin 5mg/kg once daily

Locations

Country Name City State
Australia Royal Adelaide Hospital Adelaide
Australia Sunshine Coast University Hospital Birtinya
Australia Cairns Base Hospital Cairns
Australia Royal Prince Alfred Hospital Camperdown
Australia The Prince Charles Hospital Chermside
Australia Monash Children's Hospital Clayton
Australia Monash Medical Centre Clayton
Australia Concord Repatriation Hospital Concord
Australia Gladstone Hospital Gladstone
Australia Gold Coast University Hospital Gold Coast
Australia Greenslopes Private Hospital, Greenslopes
Australia Royal Brisbane & Women's Hospital Herston
Australia Royal Hobart Hospital Hobart
Australia Mackay base Hospital Mackay
Australia Sir Charles Gardiner Hospital Nedlands
Australia John Hunter Hospital New Lambton
Australia Perth Children's Hospital Perth
Australia The Alfred Prahran
Australia Sydney Children's Hospital Randwick
Australia Rockhampton Hospital Rockhampton
Australia Mater Adult Hospital South Brisbane
Australia Queensland Children's Hospital South Brisbane Queensland
Australia Townsville Hospital Townsville
Australia The Children's Hospital at Westmead Westmead
Australia Westmead Hospital Westmead
Australia Princess Alexandra Hospital Woolloongabba Queensland
Canada St Michaels Hospital Toronto
Canada The Hospital for Sick Kids Toronto
Denmark Skejby University Hospital Aarhus
Denmark Rigshospitalet København
France Hospital Cochin Paris
Ireland St Vincent's University Hospital Dublin
Netherlands Erasmus MC Sophia Children's Hospital Rotterdam
New Zealand Starship Children's Hosptial Auckland
New Zealand St George's Hospital Christchurch
Singapore Tan Tock Seng Hospital Pte Ltd Singapore
United Kingdom Royal Brompton Hosptial London
United Kingdom Nottingham Children's Hosptial Nottingham

Sponsors (14)

Lead Sponsor Collaborator
The University of Queensland Australian Government Department of Health and Ageing, Children's Hospital Foundation, Cystic Fibrosis Foundation, Erasmus Medical Center, Griffith University, Hôpital Cochin, James Cook University, Queensland, Australia, Monash University, Murdoch Childrens Research Institute, Newcastle University, South Australian Health and Medical Research Institute, University of Copenhagen, University of Melbourne

Countries where clinical trial is conducted

Australia,  Canada,  Denmark,  France,  Ireland,  Netherlands,  New Zealand,  Singapore,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Other Examine the MABS clearance status at twelve (12 months) after time point final To examine whether MABS has been cleared after 12 months completion of the trial using the 12 month follow up site Principal Investigator Questionnaire. 12 months post trial completion
Primary Appendix A1 - MABS clearance from respiratory samples with tolerance at final outcome The probability of MABS clearance with good tolerance at final outcome. MABS clearance defined as: Negative MABS cultures from 4 consecutive sputum samples with one of those sputum specimens collected four weeks after the completion of consolidation therapy or a MABS negative BAL collected four weeks after completion of consolidation.
Tolerance will be defined using the Common Terminology Criteria for Adverse Events (CTCAE version 5.0). Only adverse events that are attributed as either possibly, probably or definitely related to study drug will be assessed in the determination of tolerance. "Good" tolerance defined as no adverse events occurring or only adverse events coded as CTCAE grades 1 and 2. "Poor" as any adverse events coded as CTCAE grades 3, 4, or 5.
56 weeks for participants who received short intensive therapy and 62 weeks for participants who received prolonged intensive therapy.
Primary Nested Study A1.1 Short Intensive Therapy - MABS Clearance The number of patients in each group with microbiological clearance of MABS with good tolerance (in accordance with CTCAE). MABs clearance based on results from 3 sputum specimens or one BAL. Tolerance will be defined using the Common Terminology Criteria for Adverse Events (CTCAE version 5.0). Only adverse events that are attributed as either possibly, probably or definitely related to study drug will be assessed in the determination of tolerance. "Good" tolerance defined as no adverse events occurring or only adverse events coded as CTCAE grades 1 and 2. "Poor" as any adverse events coded as CTCAE grades 3, 4, or 5. Samples collected at 4 weeks and culture results determined at 6 weeks
Primary Nested study A1.1.1 Efficacy of inhaled Amikacin during intensive therapy in comparison to intravenous Amikacin in the treatment of MABS-PD The number of patients in each group with microbiological clearance of MABS with good tolerability at completion of short intensive therapy with the use of inhaled amikacin (Arm B) and with the use of IV amikacin (Arm A) given during intensive phase. Clearance will be based on results from 3 consecutive sputum or 1 BAL sample.Tolerance will be defined using the Common Terminology Criteria for Adverse Events (CTCAE version 5.0). Only adverse events that are attributed as either possibly, probably or definitely related to study drug will be assessed in the determination of tolerance. "Good" tolerance defined as no adverse events occurring or only adverse events coded as CTCAE grades 1 and 2. "Poor" as any adverse events coded as CTCAE grades 3, 4, or 5. samples collected at 4 weeks and culture results determined at 6 weeks
Primary Nested Study A1.1.2 Efficacy of additional clofazimine during short intensive therapy in comparison to no additional clofazimine for treatment of MABS-PD The number of patients in each group with microbiological clearance of MABS with good tolerability at completion of short intensive therapy with the use of additional clofazimine (Arm A) and without the use of additional clofazimine (Arm C) given during intensive phase. Clearance will be based on results from 3 consecutive sputum or 1 BAL sample.Tolerance will be defined using the Common Terminology Criteria for Adverse Events (CTCAE version 5.0). Only adverse events that are attributed as either possibly, probably or definitely related to study drug will be assessed in the determination of tolerance. "Good" tolerance defined as no adverse events occurring or only adverse events coded as CTCAE grades 1 and 2. "Poor" as any adverse events coded as CTCAE grades 3, 4, or 5. samples collected at 4 weeks and culture results determined at 6 weeks
Primary Nested Study A1.2 - Comparison of microbiological clearance of MABS with good tolerability at 12 weeks in patients with MABS positive cultures at 6 weeks and allocated to prolonged intensive therapy and those allocated to consolidation therapy. The number of patients in each group with clearance of MABS at 12 weeks with good tolerance. Clearance will be based on the results of 3 consecutive sputum samples or 1 BAL sample.Tolerance will be defined using the Common Terminology Criteria for Adverse Events (CTCAE version 5.0). Only adverse events that are attributed as either possibly, probably or definitely related to study drug will be assessed in the determination of tolerance. "Good" tolerance defined as no adverse events occurring or only adverse events coded as CTCAE grades 1 and 2. "Poor" as any adverse events coded as CTCAE grades 3, 4, or 5. samples collected at 10 weeks and culture results determined at 12 weeks
Primary Nested Study 1.3 Consolidation Therapy - Comparison of MABS clearance between those allocated to consolidation therapy with oral treatment and those allocated to consolidation with oral therapy and additional inhaled amikacin The number of patients with microbiological clearance of MABS with good tolerability between those allocated to consolidation therapy with oral treatment and those allocated to consolidation therapy with oral therapy and additional inhaled amikacin. MABS clearance based on 3 consecutive sputum samples or 1 BAL sample.Tolerance will be defined using the Common Terminology Criteria for Adverse Events (CTCAE version 5.0). Only adverse events that are attributed as either possibly, probably or definitely related to study drug will be assessed in the determination of tolerance. "Good" tolerance defined as no adverse events occurring or only adverse events coded as CTCAE grades 1 and 2. "Poor" as any adverse events coded as CTCAE grades 3, 4, or 5. 52 weeks or 58 weeks depending on clearance of MABS at 4 weeks, with those allocated to short IT completing at 52 weeks and those allocated to prolonged IT completing at 58 weeks.
Secondary The probability of microbiological clearance of MABS at time point final, irrespective of toxicity for participants according to treatment path. Probability of microbiological clearance irrespective of adverse event reporting. 6 weeks, 12 weeks, at end of consolidation (52 and 58 weeks) and at final outcomes at 56 weeks and 62 weeks
Secondary The safety of the treatment combinations in patients with MABS The number of participants with treatment-related adverse events as assessed by CTCAE version 5 at completion of short IT, at completion of prolonged IT, at completion of CT and at final outcomes. 6 weeks and 12 weeks and at end of consolidation (52 and 58 weeks) and after trial has been completed
Secondary The relative change in FEV1 z-score between treatment groups for time point final compared with time point start in patients who do and who do not clear MABS at time point final. Relative change in FEV1 z score compared between treatment groups Day 0, 6 weeks, 12 weeks, at end of consolidation (52 and 58 weeks) and at final outcomes at 56 weeks and 62 weeks
Secondary Change in % Bronchiectasis scored using PRAGMA in chest CTs between Day 0 (screening) and at 12 weeks and at final outcome and between those who clear and those who do not clear MABS Change in % Bronchiectasis using PRAGMA CT between screening Day 0 and at 12 weeks and at final outcome Day 0 and 12 weeks and at final outcome at either 56 weeks or 62 weeks according to treatment path
Secondary Change in % Air Trapping scored using PRAGMA in chest CTs between Day 0 (screening) and at 12 weeks and at final outcome and between those who clear and those who do not clear MABS Change in % Trapped Air using PRAGMA CT between screening Day 0 and at 12 weeks and at final outcome Day 0 and 12 weeks and at final outcome at either 56 weeks or 62 weeks according to treatment path
Secondary Change in % Disease scored using PRAGMA in chest CTs between Day 0 (screening) and at 12 weeks and at final outcome and between those who clear and those who do not clear MABS Change in % Disease using PRAGMA CT between screening Day 0 and at 12 weeks and at final outcome Day 0 and 12 weeks and at final outcome at either 56 weeks or 62 weeks according to treatment path
Secondary The predictive value of structural abnormalities at Day 0 (screening) CTs for sputum conversion and for progression of structural changes in relation to therapy. Association between structural abnormalities (%Bronchiectasis, %Air trapping and %Disease) at screening Day 0 and clearance of MABs at 12 weeks and at final outcome and with change in %Bronchiectasis, %Air trapping and %Disease between screening day 0 and at 12 weeks and at final outcome Day 0 and 12 weeks and at final outcome at either 56 weeks or 62 weeks according to treatment path
Secondary The change in CFQ-R respiratory domain for those with CF between treatment groups for short intensive, prolonged intensive and consolidation phases as well as between Day 0 and final outcome and between participants with and without MABS clearance. The change in CFQ-R respiratory domain for patients with CF between baseline and at 6 weeks, 12 weeks and 56 weeks for those that had short intensive therapy and 62 weeks for those who received prolonged intensive therapy Day 0 and 6 weeks and 12 weeks, and at completion consolidation (at 52 and 58 weeks for those who completed short or prolonged IT) and at final outcome (at 56 and 62 weeks for those who completed short or prolonged IT)
Secondary The change in HRQOL in adults, between treatment groups for short intensive, prolonged intensive and consolidation phases as well as between Day 0 and final outcome and between participants with and without MABS clearance. Change in HRQOL measured using the SF36 Day 0 and 6 weeks and 12 weeks, and at completion consolidation (at 52 and 58 weeks for those who completed short or prolonged IT) and at final outcome (at 56 and 62 weeks for those who completed short or prolonged IT)
Secondary The change in HRQoL in Children between treatment groups for short intensive, prolonged intensive and consolidation phases as well as between Day 0 and final outcome and between participants with and without MABS clearance. Change in HRQOL measured using the Peds-QL™ Day 0 and 6 weeks and 12 weeks, and at completion consolidation (at 52 and 58 weeks for those who completed short or prolonged IT) and at final outcome (at 56 and 62 weeks for those who completed short or prolonged IT)
Secondary The cost effectiveness of the proposed treatment combinations across both intensive and consolidation phases of the trial. Total cost between treatments calculated as the sum product of health resource utilisation and resource unit price during treatment period. from date of randomization for the duration of treatment up to 56 weeks for those allocated to short IT and up to 62 weeks for those allocated to prolonged IT
Secondary The change in six minute walk distance for adult participants from the date of randomization to up to 62 weeks according to treatment path and in participants who do and do not clear MABS at time point final. Change in 6 minute walk distance using the six minute walk test in adult participants from date of randomization for the duration of treatment up to 56 weeks for those allocated to short IT and up to 62 weeks for those allocated to prolonged IT