Molgramostim Nebulizer Solution Expanded Access Program Protocol

Available (expanded access)

Conditions studied: Autoimmune Pulmonary Alveolar Proteinosis

In brief

Autoimmune pulmonary alveolar proteinosis (aPAP) is a rare disorder in which a material called surfactant builds up in the lungs and makes it hard to breathe. In addition to shortness of breath, people with aPAP can experience persistent cough, overwhelming fatigue, unintentional changes in weight, chest or back pain, suddenly feeling out of shape, and general discomfort. Currently, there are no approved medications for aPAP in the United States, but the symptoms of aPAP can be treated with whole lung lavage (WLL). WLL is an invasive procedure that temporarily removes surfactant, and it can result in serious consequences like trauma to the lung, a collapsed lung, and prolonged requirement for artificial ventilation. Savara is studying an investigational drug called molgramostim nebulizer solution to see if it activates the cells that help clear surfactant from the lungs, which improves oxygen transfer from the lungs to the bloodstream. Molgramostim nebulizer solution is administered by inhalation using a hand-held nebulizer. In clinical trials, molgramostim nebulizer solution has shown improvements in gas exchange and patient reported outcomes. This expanded access program will make molgramostim nebulizer solution available to adult patients with diagnosed aPAP. Access must be obtained through the treating physician. Patients will dose molgramostim nebulizer solution 300 micrograms (mcg) once daily and be followed by their physician every 3 months to assess their clinical status and report any adverse events.

Key facts

Study ID

NCT06546098

Run by

Savara Inc.

Last updated by the study team

2026-07-28

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Eligible patients must:
• Be ≥18 years of age at the time of signing the informed consent.
• Agree to use a highly effective form of contraception (see Section 3.5).
• Have a positive serum anti-granulocyte macrophage colony-stimulating factor (GM CSF) autoantibody test result confirming aPAP.
• Have a history of pulmonary alveolar proteinosis (PAP), based on examination of a lung biopsy, bronchoalveolar lavage (BAL) cytology, or a high-resolution computed tomogram (HRCT) of the chest.
• Have at least one symptom of aPAP, including but not limited to dyspnea (at rest or with exertion), cough, or fatigue.
• Be capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.
• Be willing and able to comply with the visit schedule and treatment plan specified in the protocol, as judged by the physician.

You may not qualify if…

• Eligible patients must not:
• Have a diagnosis of hereditary or secondary PAP, or a metabolic disorder of surfactant production.
• Require a whole lung lavage (WLL) at the time of screening (patient may be eligible 1 week post WLL).
• Have received GM-CSF treatment within 1 month prior to the screening visit.
• Have been treated with any investigational product within 5 half-lives or 3 months (whichever is longer) prior to the screening visit.
• Have a history of allergic reactions to GM-CSF or any of the excipients in the nebulizer solution.
• Be using significant (e.g., more than 10 mg/day systemic prednisolone) immunosuppression.
• Have a history of severe and unexplained side effects during aerosol delivery of any medicinal product.
• Have a history or current diagnosis of a myeloproliferative disease or leukemia.
• Have any other medical condition which in the opinion of the physician would make the patient unsuitable for treatment with molgramostim nebulizer solution.
• Be pregnant or breastfeeding, or planning to become pregnant during treatment with molgramostim nebulizer solution.

Where it is running

• University of California — Los Angeles, California, United States
• University Florida Health — Gainesville, Florida, United States
• University of Maryland School of Medicine — Baltimore, Maryland, United States
• Washington University School of Medicine — St Louis, Missouri, United States
• Duke University Hospital — Durham, North Carolina, United States
• WakeMed Raleigh — Raleigh, North Carolina, United States
• Cincinnati Children's Hospital Medical Center — Cincinnati, Ohio, United States
• AGH Allegheny General Hospital — Pittsburgh, Pennsylvania, United States
• UT Southwestern Medical Center — Dallas, Texas, United States

Full record on ClinicalTrials.gov

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