Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Primary Peritoneal: early-phase trial registry
2 of 4 indexed Primary Peritoneal trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #4,115 of 28,707 conditions by registered trial count.
4 US clinical trials · 2 currently recruiting · #4,115 of 28,707 conditions by registered trial count
Primary Peritoneal: 4 US clinical trials tracked, 2 recruiting.
Primary Peritoneal is the subject of 4 registered US clinical trials on ClinicalTrials.gov, 2 of them currently open to new participants. 1 are in Phase 3-4 (later-stage) and 2 in Phase 1-2 (earlier-stage). The most active sponsor is pharmaand, running 1 of these trials.
Enrollment posture brief
Registry condition primary-peritoneal
OPEN 2 | RECR 50% | LATE 1 | EARLY 2 | RANK #4115 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Abdominal Aortic Aneurysms (50% recruiting · 6 trials)
Primary Peritoneal lists 2 open slots (50% of 4 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 Primary Peritoneal 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.
-
Primary Peritoneal is recruiting above its size-band peers.
2 of 4 indexed trials (50%) 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.
Open and recent trials
4 total, page 1 of 1
CATALINA-2: A Clinical Study of TORL-1-23 in Platinum-resistant Ovarian Cancer.
TORL Biotherapeutics
NCT06690775
A Study to Assess Adverse Events and Change in Disease Activity in Participants With Platinum-Resistant Advanced High-Grade Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancers With High Folate Receptor-Alpha Expression Treated With Intravenously (IV) Infused Mirvetuximab Soravtansine
AbbVie
NCT06682988
A Study in Ovarian Cancer Patients Evaluating Rucaparib and Nivolumab as Maintenance Treatment Following Response to Front-Line Platinum-Based Chemotherapy
pharmaand
NCT03522246
Intraoperative Detection of Lesions Using PET (Positron Emission Tomography) Probe During Secondary Cytoreductive Surgery for Recurrent Ovarian, Fallopian Tube and Primary Peritoneal Cancer
Memorial Sloan Kettering Cancer Center
NCT01826227
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 2 | 2 |
| Phase 3 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Primary Peritoneal records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Primary Peritoneal trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Primary Peritoneal page
4 registered trials, 2 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 2 Primary Peritoneal trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- pharmaand sponsors the most Primary Peritoneal trials on record, review their full trial history before evaluating a specific study. See pharmaand's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
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 Primary Peritoneal condition card totals 4 registered trials; most-linked intervention 18F-Fluoro-2-deoxy-D-lucose; top US site state Florida. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.