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Condition (MeSH)

Osteopetrosis

ClinicalTrials.gov lists 22 trials for Osteopetrosis or a narrower condition beneath it. Bellicum Pharmaceuticals has the most among industry and government lead sponsors, with 2.

MeSH D010022 Musculoskeletal Diseases C05 Listed by Orphanet as a rare disease
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Phase 1 Phase 1 1 Phase 1/2 Phase 1/2 4 Phase 2 Phase 2 6 Phase 2/3 Phase 2/3 3 Phase 3 Phase 3 1 Not applicable Not applicable 2 Observational Observational 4 Expanded access Expanded access 1 Phase 1 Phase 1 1 Phase 1/2 Phase 1/2 4 Phase 2 Phase 2 6 Phase 2/3 Phase 2/3 3 Phase 3 Phase 3 1 Not applicable Not applicable 2 Observational Observational 4 Expanded access Expanded access 1

Trials per phase

22 of the 22 trials are tagged with Osteopetrosis itself; the rest are tagged with a narrower condition beneath it.

Get the Osteopetrosis report as a PDF

The PDF carries up to 50 rows of each section, where the page shows the first few, with the sources listed. Enter a work email and confirm it from the message we send, and the report follows by email.

When did Osteopetrosis trials start? (13)

Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.

Trials over time, by phase

  • Phase 1
  • Phase 1/2
  • Phase 2
  • Phase 2/3
  • Phase 3
  • Not applicable
  • Observational

Top of scale: 4

1999: 1 trials (Phase 3 1) 2002: 2 trials (Observational 1, Phase 2/3 1) 2003: 1 trials (Phase 1 1) 2004: 1 trials (Not applicable 1) 2007: 1 trials (Phase 2 1) 2008: 2 trials (Phase 2/3 1, Phase 1/2 1) 2009: 3 trials (Observational 1, Phase 2/3 1, Phase 2 1) 2012: 1 trials (Observational 1) 2014: 4 trials (Phase 2 2, Phase 1/2 2) 2016: 2 trials (Phase 2 2) 2020: 1 trials (Observational 1) 2022: 1 trials (Not applicable 1)

Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.

Trials started per year
Year Trials started
2026 (partial year) 1
2022 1
2020 1
2016 2
2014 4
2012 1
2009 3
2008 2
2007 1
2004 1

No forecast is made for this condition: it averages 0.4 trial starts a year over the five years to September, under the 5 a year the method needs.

Recruitment duration, a model prediction: none of the 22 trials evaluated at the 2026-10-09 snapshot is predicted and still running. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Osteopetrosis trials in? (8)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 1
Phase 1/2 4
Phase 2 6
Phase 2/3 3
Phase 3 1
Not applicable 2
Observational 4
Expanded access 1

How many Osteopetrosis trials are recruiting? (6)

Shown in this order: the order a trial moves through, from not yet recruiting to unknown.

Trials by recruitment status
Status Trials
Recruiting 4
Active, not recruiting 2
Completed 9
Terminated 5
No longer available 1

Status as registered on ClinicalTrials.gov. Each trial is counted once.

Which lead sponsors run the most Osteopetrosis trials? (3)

Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.

Lead sponsors
Sponsor Trials
Bellicum Pharmaceuticals 2
FDA Office of Orphan Products Development 1
InterMune 1

Which drugs are being tested for Osteopetrosis? (3)

Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.

Drugs tested
Drug Trials
Cytoxan 2
Busulfan 2
Rimiducid 2

Interventions as named in the registry (12)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
Alemtuzumab s.c. 3
SQ Fludarabine 3
Stem Cell Transplantation 3
BPX-501 T cells 2
Gamma Interferon 1b 2

These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.

Which serious adverse events do Osteopetrosis trials report? (10)

Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.

Serious adverse events in this condition's trials
Adverse event Subjects affected Trials
Fever 32 1
Graft vs. Host disease 9 1
HHV-6 Reactivation 9 1
Thrombotic microangiopathy 8 2
Pyrexia 7 1

Which publications cover Osteopetrosis? (17)

Shown in this order: major-topic papers first, then newest, then most linked to trials.

Prevalence (6)

Shown in this order: jurisdiction, then disease name. Orphanet observation for the mapped ORPHA concept; the mapping relation column says whether that concept is exactly this condition or broader or narrower.

Prevalence
Orphanet disease Type Class Geography Jurisdiction Mapping relation
Osteopetrosis and related disorders Annual incidence 1-9 / 100 000 Europe Not stated Exact
Osteopetrosis and related disorders Point prevalence Unknown Worldwide Not stated Exact
Osteopetrosis and related disorders Point prevalence Unknown Worldwide Not stated Exact
Osteopetrosis and related disorders Annual incidence 1-9 / 100 000 Europe Not stated Unspecified
Osteopetrosis and related disorders Annual incidence 1-9 / 100 000 Europe Not stated Exact

Rare-disease identity (2)

Shown in this order: exact, broader, narrower, other.

Rare-disease identity
Orphanet disease ORPHA code Relation Source
Osteopetrosis and related disorders 2781 Exact Orphadata Science knowledge files, Product 1
Osteopetrosis and related disorders 2781 Exact Orphanet Rare Disease Ontology (ORDO)

Not on this page

Not measured: delivery record.

Checked, with nothing recorded for this condition: sub-conditions in mesh.

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