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CompletedNCT03421743OPTIMAUpdated Jul 3, 2024Results posted

Pilot Trial of Inhaled Molgramostim in Non-tuberculous Mycobacterial (NTM) Infection

A Phase 2 interventional study of Inhaled molgramostim and Antimycobacterial regimen in Mycobacterium Infections, Nontuberculous, sponsored by Savara Inc.. Completed at 5 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-07-03.

Sponsored by Savara Inc. · Phase 2, Interventional, and Treatment

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Phase
Phase 2
Study type
Interventional
Enrollment
32
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

The trial is an open-label, non-controlled, multicenter, pilot clinical trial of inhaled molgramostim (recombinant human granulocyte-macrophage colony stimulating factor; rhGM-CSF) in subjects with persistent pulmonary non-tuberculous mycobacterial (NTM) infection. Participants will be treated for 24-weeks with inhaled molgramostim and followed up for 12-weeks after end of treatment. The primary aim of the trial is to investigate the efficacy of inhaled molgramostim on NTM sputum culture conversion to negative.

Read the detailed description

The study will comprise a Screening Visit, a Baseline Visit, a 24-week treatment period and a 12-week follow-up period. 30 adult participants with a history of chronic NTM infection with at least 2 positive cultures in the prior 2 years, of which at least one is within the last 6 months prior to Screening, will be considered for enrollment. Participants should provide a positive NTM sputum culture at Screening to be eligible.

Two subgroups of participants will be recruited:

  • Group 1: Participants who remain sputum culture positive while currently on a multidrug NTM guideline based antimycobacterial regimen, which has been ongoing for at least 6 months prior to the Baseline Visit.
  • Group 2: Participants who remain sputum culture positive but have either stopped a multidrug NTM guideline based antimycobacterial regimen at least 28 days prior to Screening due to lack of response or intolerance, or never started such treatment.

The treatment period will consist of 14 trial visits (Screening [within 10 weeks of Baseline], Baseline, and every 4 weeks to Week 48 [visits at Weeks 28, 36 and 44 included telephone contact, others included clinic visits]) and a Follow-up visit 12 weeks after the end of treatment.

At the Baseline visit, eligible participants will start treatment with molgramostim nebulizer solution, 300 μg, administered by inhalation using an eFlow Nebulizer System. At each visit, sputum samples will be collected for staining and microscopy, and microbiological culture. In addition, clinical assessments including body weight, patient reported outcomes, and diffusion capacity of the lung for carbon monoxide (DLCO) will be conducted at each clinic visit. Spirometry will be assessed at Baseline, and at Weeks 12, 24, 32, 40 and 48. A 6-minute walk test (6-MWT) will be conducted at Baseline, at Weeks 12, 24, 48 and at the 12-week Follow-up visit. Safety laboratory samples will be collected at Screening, Baseline and at Weeks 4, 12, 24, 32, 40, 48 and at the 12-week Follow-up visit. Anti-GM-CSF antibodies will be assessed at Baseline, at Week 4, 12, 24, 32, 48, and at the 12-week Follow-up visit.

02

Conditions studied

  • Mycobacterium Infections, Nontuberculous
03

In context

Mycobacterium Infections, Nontuberculous

54 studies on the registry are indexed under Mycobacterium Infections, Nontuberculous; 19 are open to participants now.

This study's enrollment of 32 is below the median of 40 across 35 interventional studies indexed under Mycobacterium Infections, Nontuberculous.

Browse Mycobacterium Infections, Nontuberculous studies →

Lead sponsor

Savara Inc. is the lead sponsor of 11 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. History of chronic pulmonary infection with MAC or M. abscessus (defined as at least 2 documented positive sputum cultures in the prior 2 years, of which at least one was obtained in the 6 months prior to Screening).
  2. Subject fulfills one of the following criteria:

    • Subjects who remain sputum culture positive while currently on a multidrug NTM guideline based antimycobacterial regimen, which has been ongoing for at least 6 months prior to the Baseline Visit
    • Subjects who remain sputum culture positive but have either stopped a multidrug NTM guideline based antimycobacterial regimen at least 28 days prior to Screening due to lack of response or intolerance, or never started such treatment.
  3. Ability to produce at least 2 mL of sputum or be willing to undergo an induction that produces at least 2 mL of sputum for clinical evaluation.
  4. Female or male ≥18 years of age.
  5. Females who have been for more than 1 year or females of after a confirmed menstrual period using a highly efficient method of (i.e. a method with less than 1% failure rate such as combined hormonal contraception, progesterone-only hormonal contraception, intrauterine device, intrauterine hormone- releasing system, bilateral tubal occlusion, vasectomized partner, sexual abstinence), during and until thirty (30) days after last dose of trial treatment. Females of childbearing potential must have a negative serum pregnancy test at Screening (Visit 1) and a negative urine pregnancy test at dosing at Baseline (Visit 2) and must not be lactating.
  6. Males agreeing to use condoms during and until thirty (30) days after last dose of medication, or males having a female partner who is using adequate contraception as described above.
  7. Willing and able to provide signed .
  8. Willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other trial procedures specified in the protocol as judged by the investigator

Exclusion criteria

Exclusion Criteria:

  1. Subjects diagnosed with cystic fibrosis.
  2. Prior therapy with inhaled or systemic GM-CSF.
  3. Subjects with hemoptysis of ≥60 mL in a 24 hour period within 4 weeks prior to Screening.
  4. Concurrent disease with a of less than 6 months.
  5. History of, or present, myeloproliferative disease, leukemia or other hematological .
  6. Active pulmonary malignancy (primary or ); or any malignancy requiring chemotherapy or radiation therapy within one year prior to Screening or anticipated during the study period.
  7. Active allergic bronchopulmonary mycosis or connective tissue disease, inflammatory bowel disease or other disorder requiring therapy associated with significant , such as systemic at a dose equivalent of 10 mg/day or more of prednisolone, within 3 months prior to Screening or anticipated during the study period.
  8. Pulmonary tuberculosis requiring treatment or treated within 2 years prior to Screening.
  9. infection or other disease associated with significant immunodeficiency.
  10. History of lung transplantation.
  11. Any change in chronic NTM multi-drug antimycobacterial regimen within 28 days prior to Screening.
  12. Treatment with any medicinal product within 3 months of Screening.
  13. Previous experience of severe and unexplained side-effects during aerosol delivery of any kind of medicinal product
  14. Any other serious medical condition which in the opinion of the investigator would make the subject unsuitable for the trial.
Terms in these criteria, in plain language(12)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
32 participants (actual)

Study arms

  • Experimental
    Inhaled molgramostim/antimycobacterials

    Inhaled molgramostim administered in participants who remain sputum culture positive while currently on a multidrug NTM guideline-based antimycobacterial regimen, which has been ongoing for at least 6 months prior to the Baseline Visit

    Drug: Inhaled molgramostim · Drug: Antimycobacterial regimen

  • Experimental
    Inhaled molgramostim

    Inhaled molgramostim administered in participants who remain sputum culture positive but have stopped a multidrug NTM guideline-based antimycobacterial regimen at least 28 days prior to Screening due to lack of response or intolerance, or who never started such treatment

    Drug: Inhaled molgramostim

Interventions

  • 300 µg / dose molgramostim (recombinant human GM-CSF) for inhalation

    Also known as: rh-GM-CSF

  • DrugAntimycobacterial regimen

    Multidrug NTM guideline-based antimycobacterial regimen

06

What researchers measure

Primary outcomes

  1. Number of Participants With Sputum Culture Conversion to Negative

    Sputum culture conversion is defined as at least 3 consecutive sputum samples without growth of NTM during the treatment period.

    Time frame: 48 weeks

Secondary outcomes

  1. Number of Participants With Sputum Smear Conversion to Negative

    Sputum smear conversion is defined as at least three consecutive negative acid-fast bacilli (AFB) stained sputum smears on microscopy during the treatment period among participants who were smear positive at Baseline.

    Time frame: 48 weeks

  2. Number of Participants With Durable Sputum Culture Conversion

    Durability is defined as sputum culture conversion at or before Week 24 and culture still negative for growth of NTM at 12-weeks follow-up.

    Time frame: 60 weeks

  3. Number of Participants With Durable Sputum Smear Conversion

    Durability is defined as sputum smear conversion at or before Week 48 and AFB stained smear still negative for NTM at 12-weeks follow-up among participants who were smear positive at Baseline.

    Time frame: 60 weeks

  4. Change From Baseline in Symptom Scores (Assessed Using Lower Respiratory Tract Infections - Visual Analogue Scale)

    For each of the clinical symptoms of Lower Respiratory Tract Infections (dyspnea, fatigue, cough, pain, and sputum), the participant assessed the severity using a 10 cm visual analogue scale (VAS) ranging from 0 = no symptoms to 10 = worst possible symptoms. A total LRTI score was calculated by summing up the score of each symptom (i.e., total LRTI score ranged from 0 to 50).

    Time frame: Baseline to Week 48

  5. Change From Baseline in Symptom Scores (Assessed Using Quality of Life Questionnaire - Bronchiectasis (QOL-B))

    The QOL-B questionnaire including 37 items on 8 scales (emotional functioning, health perceptions, physical functioning, respiratory symptoms, role functioning, social functioning, treatment burden, vitality) was used to assess participant's quality of life (QoL). Each of the 37 items is scored from 1 to 4, and each of the 8 scale scores is standardised on a 0-100 point scale, with higher scores representing fewer symptoms or better functioning and QoL. Scales contain between 3 and 9 items, thus changing 1 answer category will correspond to a change of 11.1 to 3.7 points.

    Time frame: Baseline to Week 48

  6. Change From Baseline in Global Rating of Health (GRH)

    GRH was assessed as an interviewer questionnaire, which assesses global health as "excellent, good, fair or poor". For analysis, these were scored as 1 (poor) to 4 (excellent).

    Time frame: Baseline to Week 48

  7. Change From Baseline in Body Weight

    Time frame: Baseline to Week 48

  8. Change From Baseline in 6-Minute Walking Distance (6MWD)

    The 6-minute walk test (6MWT) was performed in accordance with the European Respiratory Society/American Thoracic Society (ERS/ATS) guideline by technicians with documented training and experience. The 6MWT was performed twice at each visit.

    Time frame: Baseline to Week 48

  9. Change From Baseline in Dyspnea Scores During a 6MWT

    Time frame: Baseline to Week 48

  10. Number of Adverse Events (AEs) During the Trial Period

    All trial subjects were carefully monitored for the occurrence of AEs during the trial period from Baseline (Visit 2) to the 12-week Follow-up visit (Visit 15). AEs were collected by the investigator by a non-leading question and by reporting events directly observed or spontaneously volunteered by participants. Participants were also encouraged to contact the clinic in between visits if they experienced AEs or had any concerns.

    Time frame: 60 weeks

  11. Number of Serious AEs (SAEs) During the Trial Period

    SAEs were defined as any untoward medicinal occurrence or effect that at any dose: * Results in death * Is life-threatening * Requires hospitalisation or prolongation of existing hospitalisation * Results in persistent or significant disability or incapacity * Is a congenital abnormality or birth defect * May jeopardise the participant or may require medical intervention to prevent one or more of the outcomes listed above (Important Medical Events).

    Time frame: 60 weeks

  12. Number of Adverse Drug Reactions (ADRs) During the Trial Period

    All AEs were assessed by the investigator for causality (unlikely, possible, probable, not applicable) according to current regulatory standards. AEs which had a 'possible' or 'probable' causality were classified as ADRs.

    Time frame: 60 weeks

  13. Number of Severe AEs During the Trial Period

    All AEs were assessed by the investigator for severity (mild, moderate, severe) according to current regulatory standards.

    Time frame: 60 weeks

  14. Number of Participants Withdrawn From Treatment Due to an AE During the Trial Period

    Time frame: 60 weeks

  15. Change From Baseline in Diffusing Capacity of the Lung for Carbon Monoxide (DLCO)

    Time frame: Baseline to Week 48

  16. Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1) (% Predicted)

    Time frame: Baseline to Week 48

  17. Change From Baseline in Forced Vital Capacity (FVC) (% Predicted)

    Time frame: Baseline to Week 48

  18. Number of Subjects With Development of Anti-GM-CSF Antibodies in Serum

    Analyses for anti-GM-CSF antibodies were performed at a central laboratory.

    Time frame: 60 weeks

07

Results

Posted Jul 3, 2024
Limitations and caveats
This was an exploratory study without hypothesis testing. Only descriptive statistics were used. The study included participants with treatment refractory NTM infection, who were severely affected by their background disease (in most cases bronchiectasis). These participants probably had an even lower potential for improvement than was assumed prior to the study. The study was further limited by the lack of a placebo control.

Participant flow

This was a multicenter study conducted in a total of 5 sites in Australia and the UK. First participant was enrolled on 1 March 2018 and last participant completed the study on 13 January 2020.

Participant flow — Overall Study
MilestoneInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Started1418
Completed1116
Not completed32
Withdrew: Lack of efficacy10
Withdrew: Adverse event21
Withdrew: Withdrawal by subject01

Outcome measures

PrimaryNumber of Participants With Sputum Culture Conversion to Negative

Sputum culture conversion is defined as at least 3 consecutive sputum samples without growth of NTM during the treatment period.

Time frame:
48 weeks
Reported as:
Count of participants · Participants
Number of Participants With Sputum Culture Conversion to Negative
ParticipantsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Participants With Sputum Culture Conversion to Negative23
SecondaryNumber of Participants With Sputum Smear Conversion to Negative

Sputum smear conversion is defined as at least three consecutive negative acid-fast bacilli (AFB) stained sputum smears on microscopy during the treatment period among participants who were smear positive at Baseline.

Time frame:
48 weeks
Reported as:
Count of participants · Participants
Number of Participants With Sputum Smear Conversion to Negative
ParticipantsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Participants With Sputum Smear Conversion to Negative56
SecondaryNumber of Participants With Durable Sputum Culture Conversion

Durability is defined as sputum culture conversion at or before Week 24 and culture still negative for growth of NTM at 12-weeks follow-up.

Time frame:
60 weeks
Reported as:
Count of participants · Participants
Number of Participants With Durable Sputum Culture Conversion
ParticipantsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Participants With Durable Sputum Culture Conversion11
SecondaryNumber of Participants With Durable Sputum Smear Conversion

Durability is defined as sputum smear conversion at or before Week 48 and AFB stained smear still negative for NTM at 12-weeks follow-up among participants who were smear positive at Baseline.

Time frame:
60 weeks
Reported as:
Count of participants · Participants
Number of Participants With Durable Sputum Smear Conversion
ParticipantsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Participants With Durable Sputum Smear Conversion56
SecondaryChange From Baseline in Symptom Scores (Assessed Using Lower Respiratory Tract Infections - Visual Analogue Scale)

For each of the clinical symptoms of Lower Respiratory Tract Infections (dyspnea, fatigue, cough, pain, and sputum), the participant assessed the severity using a 10 cm visual analogue scale (VAS) ranging from 0 = no symptoms to 10 = worst possible symptoms. A total LRTI score was calculated by summing up the score of each symptom (i.e., total LRTI score ranged from 0 to 50).

Time frame:
Baseline to Week 48
Reported as:
Mean · score on a scale
Change From Baseline in Symptom Scores (Assessed Using Lower Respiratory Tract Infections - Visual Analogue Scale)
score on a scaleInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Total score2.48 ± 9.134.32 ± 13.32
Dyspnoea1.74 ± 2.500.91 ± 3.64
Tiredness1.29 ± 3.631.08 ± 3.96
Cough5.28 ± 3.083.35 ± 2.08
Color of phlegm-1.88 ± 3.540.28 ± 2.24
Pain1.22 ± 2.760.58 ± 2.82
SecondaryChange From Baseline in Symptom Scores (Assessed Using Quality of Life Questionnaire - Bronchiectasis (QOL-B))

The QOL-B questionnaire including 37 items on 8 scales (emotional functioning, health perceptions, physical functioning, respiratory symptoms, role functioning, social functioning, treatment burden, vitality) was used to assess participant's quality of life (QoL). Each of the 37 items is scored from 1 to 4, and each of the 8 scale scores is standardised on a 0-100 point scale, with higher scores representing fewer symptoms or better functioning and QoL. Scales contain between 3 and 9 items, thus changing 1 answer category will correspond to a change of 11.1 to 3.7 points.

Time frame:
Baseline to Week 48
Reported as:
Mean · score on a scale
Change From Baseline in Symptom Scores (Assessed Using Quality of Life Questionnaire - Bronchiectasis (QOL-B))
score on a scaleInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Emotional functioning0.00 ± 8.333.12 ± 12.12
Health perceptions-12.96 ± 13.25-6.77 ± 21.99
Physical functioning-17.78 ± 21.34-7.50 ± 28.38
Respiratory symptoms-6.84 ± 8.24-4.34 ± 16.36
Role functioning-13.33 ± 14.91-10.42 ± 22.96
Social functioning-16.36 ± 15.43-7.81 ± 20.16
Treatment burden-3.70 ± 12.834.44 ± 21.66
Vitality-9.88 ± 12.96-7.64 ± 26.83
SecondaryChange From Baseline in Global Rating of Health (GRH)

GRH was assessed as an interviewer questionnaire, which assesses global health as "excellent, good, fair or poor". For analysis, these were scored as 1 (poor) to 4 (excellent).

Time frame:
Baseline to Week 48
Reported as:
Mean · score on a scale
Change From Baseline in Global Rating of Health (GRH)
score on a scaleInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Change From Baseline in Global Rating of Health (GRH)-0.78 ± 0.67-0.38 ± 0.81
SecondaryChange From Baseline in Body Weight
Time frame:
Baseline to Week 48
Reported as:
Mean · kilogram
Change From Baseline in Body Weight
kilogramInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Change From Baseline in Body Weight-1.77 ± 2.51-1.44 ± 3.09
SecondaryChange From Baseline in 6-Minute Walking Distance (6MWD)

The 6-minute walk test (6MWT) was performed in accordance with the European Respiratory Society/American Thoracic Society (ERS/ATS) guideline by technicians with documented training and experience. The 6MWT was performed twice at each visit.

Time frame:
Baseline to Week 48
Reported as:
Mean · meter
Change From Baseline in 6-Minute Walking Distance (6MWD)
meterInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Change From Baseline in 6-Minute Walking Distance (6MWD)-17.1 ± 62.512.5 ± 56.2
SecondaryChange From Baseline in Dyspnea Scores During a 6MWT
Time frame:
Baseline to Week 48
Reported as:
Mean · score on a scale
Change From Baseline in Dyspnea Scores During a 6MWT
score on a scaleInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Change From Baseline in Dyspnea Scores During a 6MWT0.79 ± 0.921.43 ± 3.01
SecondaryNumber of Adverse Events (AEs) During the Trial Period

All trial subjects were carefully monitored for the occurrence of AEs during the trial period from Baseline (Visit 2) to the 12-week Follow-up visit (Visit 15). AEs were collected by the investigator by a non-leading question and by reporting events directly observed or spontaneously volunteered by participants. Participants were also encouraged to contact the clinic in between visits if they experienced AEs or had any concerns.

Time frame:
60 weeks
Reported as:
Number · events
Number of Adverse Events (AEs) During the Trial Period
eventsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Adverse Events (AEs) During the Trial Period199223
SecondaryNumber of Serious AEs (SAEs) During the Trial Period

SAEs were defined as any untoward medicinal occurrence or effect that at any dose: * Results in death * Is life-threatening * Requires hospitalisation or prolongation of existing hospitalisation * Results in persistent or significant disability or incapacity * Is a congenital abnormality or birth defect * May jeopardise the participant or may require medical intervention to prevent one or more of the outcomes listed above (Important Medical Events).

Time frame:
60 weeks
Reported as:
Number · events
Number of Serious AEs (SAEs) During the Trial Period
eventsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Serious AEs (SAEs) During the Trial Period1417
SecondaryNumber of Adverse Drug Reactions (ADRs) During the Trial Period

All AEs were assessed by the investigator for causality (unlikely, possible, probable, not applicable) according to current regulatory standards. AEs which had a 'possible' or 'probable' causality were classified as ADRs.

Time frame:
60 weeks
Reported as:
Number · events
Number of Adverse Drug Reactions (ADRs) During the Trial Period
eventsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Adverse Drug Reactions (ADRs) During the Trial Period6781
SecondaryNumber of Severe AEs During the Trial Period

All AEs were assessed by the investigator for severity (mild, moderate, severe) according to current regulatory standards.

Time frame:
60 weeks
Reported as:
Number · events
Number of Severe AEs During the Trial Period
eventsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Severe AEs During the Trial Period56
SecondaryNumber of Participants Withdrawn From Treatment Due to an AE During the Trial Period
Time frame:
60 weeks
Reported as:
Count of participants · Participants
Number of Participants Withdrawn From Treatment Due to an AE During the Trial Period
ParticipantsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Participants Withdrawn From Treatment Due to an AE During the Trial Period32
SecondaryChange From Baseline in Diffusing Capacity of the Lung for Carbon Monoxide (DLCO)
Time frame:
Baseline to Week 48
Reported as:
Mean · percent predicted
Change From Baseline in Diffusing Capacity of the Lung for Carbon Monoxide (DLCO)
percent predictedInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Change From Baseline in Diffusing Capacity of the Lung for Carbon Monoxide (DLCO)-4.565 ± 8.198-3.079 ± 7.766
SecondaryChange From Baseline in Forced Expiratory Volume in 1 Second (FEV1) (% Predicted)
Time frame:
Baseline to Week 48
Reported as:
Mean · percent predicted
Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1) (% Predicted)
percent predictedInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Change From Baseline in Forced Expiratory Volume in 1 Second (FEV1) (% Predicted)-1.7986 ± 10.2133-3.4011 ± 6.9830
SecondaryChange From Baseline in Forced Vital Capacity (FVC) (% Predicted)
Time frame:
Baseline to Week 48
Reported as:
Mean · percent predicted
Change From Baseline in Forced Vital Capacity (FVC) (% Predicted)
percent predictedInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Change From Baseline in Forced Vital Capacity (FVC) (% Predicted)-2.4575 ± 6.6511-2.6135 ± 7.7040
SecondaryNumber of Subjects With Development of Anti-GM-CSF Antibodies in Serum

Analyses for anti-GM-CSF antibodies were performed at a central laboratory.

Time frame:
60 weeks
Reported as:
Count of participants · Participants
Number of Subjects With Development of Anti-GM-CSF Antibodies in Serum
ParticipantsInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Number of Subjects With Development of Anti-GM-CSF Antibodies in Serum510

Adverse events

Collected over Baseline to 12-week follow-up (60 weeks in total).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Inhaled Molgramostim/Antimycobacterials2/14 (14.3%)8/14 (57.1%)14/14 (100%)
Inhaled Molgramostim1/18 (5.6%)6/18 (33.3%)18/18 (100%)
Most frequent serious events
Showing 10 of 19
Most frequent serious events
EventInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
Infective exacerbation of bronchiectasisInfections and infestations4/143/18
BronchiectasisRespiratory, thoracic and mediastinal disorders3/140/18
Chronic obstructive pulmonary diseaseRespiratory, thoracic and mediastinal disorders0/142/18
Right ventricular failureCardiac disorders1/140/18
VertigoEar and labyrinth disorders1/140/18
DiarrhoeaGastrointestinal disorders1/140/18
Mycobacterium avium complex infectionInfections and infestations1/141/18
PneumoniaInfections and infestations1/140/18
SepsisInfections and infestations1/140/18
HypotensionVascular disorders0/141/18
Most frequent other events
Showing 10 of 49
Most frequent other events
EventInhaled Molgramostim/AntimycobacterialsInhaled Molgramostim
CoughRespiratory, thoracic and mediastinal disorders9/1413/18
DyspnoeaRespiratory, thoracic and mediastinal disorders9/149/18
C-reactive protein increasedInvestigations6/143/18
NauseaGastrointestinal disorders5/147/18
HaemoptysisRespiratory, thoracic and mediastinal disorders5/143/18
Eosinophil count increasedInvestigations4/146/18
FatigueGeneral disorders4/144/18
BronchiectasisRespiratory, thoracic and mediastinal disorders4/141/18
DiarrhoeaGastrointestinal disorders4/145/18
Infective exacerbation of bronchiectasisInfections and infestations4/145/18

Baseline characteristics

No "analysis sets" were defined. All participants were included in the analyses/data presentations, equivalent to a Full Analysis Set.

Age, Categorical
Age, Categorical(Participants)Inhaled Molgramostim/AntimycobacterialsInhaled MolgramostimTotal
<=18 years000
Between 18 and 65 years41216
>=65 years10616
Age, Continuous
Age, Continuous(years)Inhaled Molgramostim/AntimycobacterialsInhaled MolgramostimTotal
Mean67.4 ± 9.966.0 ± 9.066.6 ± 9.3
Sex: Female, Male
Sex: Female, Male(Participants)Inhaled Molgramostim/AntimycobacterialsInhaled MolgramostimTotal
Female121022
Male2810
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Inhaled Molgramostim/AntimycobacterialsInhaled MolgramostimTotal
American Indian or Alaska Native000
Asian022
Native Hawaiian or Other Pacific Islander000
Black or African American000
White141630
More than one race000
Unknown or Not Reported000
Region of Enrollment
Region of Enrollment(participants)Inhaled Molgramostim/AntimycobacterialsInhaled MolgramostimTotal
United Kingdom202
Australia121830
NTM type
NTM type(Participants)Inhaled Molgramostim/AntimycobacterialsInhaled MolgramostimTotal
Mycobacterium avium complex111324
Mycobacterium abscessus369
Age at NTM diagnosis
Age at NTM diagnosis(years)Inhaled Molgramostim/AntimycobacterialsInhaled MolgramostimTotal
Mean60.9 ± 9.760.1 ± 11.760.4 ± 10.7
Smoking status
Smoking status(Participants)Inhaled Molgramostim/AntimycobacterialsInhaled MolgramostimTotal
Never11920
Previous3811
Current011

9 further baseline measures are reported on the registry.

08

Study locations

5 sites
  • Concord Repatriation General Hospital
    Concord, New South Wales 2139, Australia
  • The Prince Charles Hospital
    Chermside West, Queensland 4032, Australia
  • Greenslopes Private Hospital
    Greenslopes, Queensland 4120, Australia
  • Royal Perth Hospital
    Perth, Western Australia 6000, Australia
  • Royal Brompton Hospital
    London, SW3 6NP, United Kingdom
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2018 to primary completion in Oct 2019, 19 months.

Results were first posted in Jul 2024, 4 years 8 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 16, 2018
First posted
Feb 5, 2018
StartActual
Mar 1, 2018
Primary completionActual
Oct 15, 2019
CompletionActual
Jan 13, 2020
Results first posted
Jul 3, 2024
Last update
Jul 3, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 3, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03421743
Lead sponsor
Savara Inc.
Responsible party
Sponsor
First posted
Feb 5, 2018
Start date
Mar 1, 2018
Primary completion
Oct 15, 2019
Completion
Jan 13, 2020
Results posted
Jul 3, 2024
Last update
Jul 3, 2024

Study contacts

Grant Waterer, Prof.
principal investigator · Royal Perth Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Molgramostim

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