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ClinicalTrials.gov 5 recruiting now early-phase tilt small index

Polymyositis: early-phase trial registry

5 of 9 indexed Polymyositis trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #1,916 of 28,707 conditions by registered trial count.

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9 US clinical trials · 5 currently recruiting · #1,916 of 28,707 conditions by registered trial count

Polymyositis: 9 US clinical trials tracked, 5 recruiting.

Polymyositis is the subject of 9 registered US clinical trials on ClinicalTrials.gov, 5 of them currently open to new participants. 1 are in Phase 3-4 (later-stage) and 3 in Phase 1-2 (earlier-stage). The most active sponsor is National Institute of Environmental Health Sciences (NIEHS), running 2 of these trials.

Enrollment posture brief

Registry condition polymyositis

OPEN 5 | RECR 56% | LATE 1 | EARLY 3 | RANK #1916 | SPON 2

Volume-matched condition peers

Nearest open-share peer: Advanced Colorectal Cancer (56% recruiting · 9 trials)

Polymyositis (this)56%Acute Lymphoblastic Leukemia55.6%Acute Respiratory Distress S55.6%Acute Otitis Media22.2%Acute Heart Failure11.1%
Open-enrollment share among volume-matched conditions near Polymyositis

Polymyositis lists 5 open slots (56% of 9 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Polymyositis on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Polymyositis is recruiting above its size-band peers.

    5 of 9 indexed trials (55.6%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. One sponsor concentrates Polymyositis research.

    National Institute of Environmental Health Sciences (NIEHS) accounts for 2 of 9 trials (22.2%). 8 distinct sponsors appear on at least one study for this condition label.

  3. Typical Polymyositis enrolment sits around 570 participants.

    Median target enrolment is 570 among the 9 trials that report a genuine target (sentinel values excluded). 2 of those (22.2%) plan for fewer than 100 participants.

  4. Polymyositis splits between interventional and observational designs.

    4 interventional and 5 observational studies make up this index (44.4% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 23Phase 31

Phase Distribution

PhaseTrial count
Phase 2 3
Phase 3 1

Top Sponsors

National Institute of Environmental Health Sciences (NIEHS) 2 trials
Chester Oddis 1 trials
Myositis International Health & Research Collaborative Alliance Foundation 1 trials
argenx 1 trials
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) 1 trials
Pfizer 1 trials
National Institutes of Health Clinical Center (CC) 1 trials
Yale University 1 trials

Named interventions

Most-linked intervention names on Polymyositis records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

methimazole Drug
1 trials
tocilizumab Drug
1 trials
PBO Other
1 trials
EFG PH20 SC Biological
1 trials
No intervention - qualitative and mixed methods investigations Other
1 trials
Dazukibart Drug
1 trials
placebo Drug
1 trials

US sites by state

Facility locations filed on Polymyositis trials. A trial with sites in several states counts in each.

Maryland 4 trials
Texas 2 trials
Pennsylvania 2 trials
North Carolina 2 trials
Minnesota 2 trials
Kansas 2 trials
Georgia 2 trials
Florida 2 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

Related

Read our methodology - how this data is sourced, computed, and verified.

What to do with this Polymyositis page

9 registered trials, 5 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Polymyositis condition card totals 9 registered trials; most-linked intervention methimazole; top US site state Maryland. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.