A Phase 3 interventional study of Placebo and Nerandomilast in Idiopathic Inflammatory Myopathies, sponsored by Boehringer Ingelheim. Not yet recruiting at 158 sites in 26 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-29.
Sponsored by Boehringer Ingelheim · Phase 3, Interventional, and Treatment
This study is open to adults aged 18 and older who have a condition known as active idiopathic inflammatory myopathy (IIM) or myositis. People can participate if they have a specific type of myositis. The purpose of this study is to find out whether a medicine called nerandomilast improves IIM symptoms.
Participants are put into 2 groups randomly, which means by chance. One group takes nerandomilast tablets and the other group takes placebo tablets. Placebo tablets look like nerandomilast tablets but do not contain any medicine. Participants take nerandomilast or placebo twice a day for 1 year.
Participants are in the study for about 1 year and 2 months. During this time, they visit the study site at least 16 times. During this time, doctors regularly check the participant's health, IIM symptoms, and take note of any unwanted effects. Participants fill in questionnaires about their IIM symptoms and how IIM impacts their quality of life. The results are compared between the 2 groups to see whether the treatment works.
215 studies on the registry are indexed under Myositis; 100 are open to participants now.
This study's planned enrollment of 270 is above the median of 30 across 141 interventional studies indexed under Myositis.
Browse Myositis studies →Boehringer Ingelheim is the lead sponsor of 2,304 studies on the registry; 62 are open to participants now.
Of its 167 completed or terminated interventional studies of FDA-regulated products, 123 (74%) have results posted.
Counted across the registry records on this site, refreshed daily.
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.
Exclusion criteria:
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.
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.
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.
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.
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.
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.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Drug: Nerandomilast
Placebo matching nerandomilast
Drug: Placebo
Placebo-matching nerandomilast
Nerandomilast
Total improvement score (TIS) score (continuous) at Week 52
The TIS composite score includes 6 core set measures: manual muscle testing (MMT8), extra-muscular disease activity (MDAAT), patient global disease activity (PtGA), physician global disease activity (PhGA), health assessment questionnaire disability index (HAQ-DI), and muscle enzymes. An improvement score for each core set measure will be assigned using the absolute percent change, based on predetermined ranges. The TIS will be the sum of the all core set measure, scoring from 0 to 100, with higher scores corresponding to a greater degree of improvement.
Time frame: At Week 52.
Achievement of a TIS-40 response (yes/no; defined as TIS ≥40) at Week 52
Number of participants with 40 TIS points or higher.
Time frame: At Week 52.
Achievement of a successful tapering of oral corticosteroids (OCS) (yes/no) at Week 52
Number of participants achieving a TIS-40 response at Week 52 and ≤5 mg/day of prednisone (or equivalent) at Week 52
Time frame: At Week 52.
Change from baseline in cutaneous dermatomyositis disease area and severity index activity score (CDASI-A) at Week 52 (in participants with baseline CDASI-A ≥6)
The Cutaneous Dermatomyositis Disease Area and Severity Index activity score (CDASI-A) is a questionnaire assessing skin disease activity and damage in patients with dermatomyositis (DM). It ranges from 0 to 100, with higher values indicating more severe active skin involvement.
Time frame: At baseline and at Week 52.
Change from baseline in extra-muscular disease activity as per myositis disease activity assessment tool (MDAAT) at Week 52
Myositis Disease Activity Assessment Tool (MDAAT) is a questionnaire assessing the disease activity of extra-muscular organ systems and muscle in participants with IIM. It is a combined tool with two parallel scores: the MYOACT VAS and the MITAX. The Myositis disease activity assessment (MYOACT) visual analogue scale (VAS) scores the overall severity of disease activity. The sum of the individual scores ranges from 0 to 70, The higher the more severe. For the Myositis Intention-to-Treat Activity Index (MITAX), each question is answered with either: 0 = not present; 1 = improving; 2 = the same; 3 = worse; 4 = new. The summed scores are summed to obtain a total MITAX score with a range of 0 to 63, the higher the more severe.
Time frame: At baseline and at Week 52.
Change from baseline in PtGA at Week 52
Patient global disease activity (PtGA) measures the participant's self-assessment of the disease. It is composed of a 100 mm visual analogue scale. Patients will mark their assessment between "extremely poor" (0) and "excellent" (100). The difference between 0 (extremely poor) and the patient assessment is the PtGA, where higher distances indicate a better health status.
Time frame: At baseline and at Week 52.
Change from baseline in clinical-reported outcome 1 at Week 12
Time frame: At baseline and at Week 12.
Change from baseline in PhGA at Week 52
Physician global activity (PhGA) captures the physician's assessment of the participant's overall health. It is composed of a 100 mm visual analogue scale. Physicians will mark their assessment between "extremely poor" (0) and "excellent" (100). The difference between 0 (extremely poor) and the physician assessment is the PhGA, where higher distances indicate a better health status.
Time frame: At baseline and at Week 52.
Change from baseline in HAQ-DI at Week 52
The health assessment questionnaire disability index (HAQ-DI) assesses difficulties in performing activities of daily living across 8 domains. Each domain is rated on a scale of 0-3. The higher the score, the higher the disability.
Time frame: At baseline and at Week 52.
Change from baseline in MMT-8 score at Week 52
Manual Muscle Testing (MMT-8) assesses the muscle strength of 8 proximal, distal, and axial muscle groups. Each item is rated from 0 to 10, with the total score ranging from 0 to 150, where higher scores mean better muscle strength condition.
Time frame: At baseline and at Week 52.
Achievement of a TIS-60 response (yes/no; defined as TIS ≥60) at Week 52
Time frame: At baseline and at Week 52.
Change from baseline in clinical-reported outcome 2 at Week 12
Time frame: At baseline and at Week 12.
Change from baseline in the most abnormal baseline muscle enzymes (aldolase, CK, AST, ALT, or LDH) at Week 52
CK means creatine kinase, AST means aspartate aminotransferase, ALT means alanine aminotransferase, and LDH means lactate dehydrogenase.
Time frame: At baseline and at Week 52.
Showing the first 100 of 158 sites across 26 countries. Choose a country and city above to see the rest.
Plan to share: Yes — Clinical studies sponsored by Boehringer Ingelheim, phases I to IV, interventional and non-interventional, are in scope for sharing of the raw clinical study data and clinical study documents. Exceptions might apply, e.g. studies in products where Boehringer Ingelheim is not the license holder; studies regarding pharmaceutical formulations and associated analytical methods, and studies pertinent to pharmacokinetics using human biomaterials; studies conducted in a single center or targeting rare diseases (in case of low number of patients and therefore limitations with anonymization). For more details refer to: https://www.clinicalstudies.boehringer-ingelheim.com/msw/datasharing
Time frame: One year after the approval has been granted by major Regulatory Authorities and after the primary manuscript has been accepted for publication, or after termination of the development program.
Access criteria: For study documents -upon signing of a 'Document Sharing Agreement'. For study data -1. after the submission and approval of the research proposal (checks will be performed by the sponsor and/or the independent review panel, including checking that the planned analysis does not compete with sponsor's publication plan); 2. and upon signing of a legal agreement.
Data sharing details ↗ · www.clinicalstudies.boehringer-ingelheim.com
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Nerandomilast