[Research](/research) / ClinicalTrialStartPulse

# New Clinical Trials & Status Changes by Sponsor, Phase & Condition (ClinicalTrials.gov): 2026 statistics from 9,115 public records

**The most common phase is Not applicable (device, behavioral): 4,369 of 9,115 records (47.9%) (as of 2026-11-04; source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2).**

Data as of 2026-11-04 · Compiled by Zalwin from ClinicalTrials.gov (U.S. National Library of Medicine) API v2 Copy citation

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## Key findings

- Zalwin's ClinicalTrialStartPulse dataset holds 9,115 ClinicalTrialStartPulse records dated 2026-09-14 to 2026-11-03 (as of 2026-11-04; source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2). [#](#finding-1)
- The most common phase is Not applicable (device, behavioral): 4,369 of 9,115 records (47.9%) (as of 2026-11-04; source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2). [#](#finding-2)
- Across 8,879 records with a stated enrollment, the total is 14,774,539 and the median is 80; the largest is 4,878,935 (Sanofi) (as of 2026-11-04; source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2). [#](#finding-3)
- The top 10% of records by enrollment (888 of 8,879) account for 94.1% of the total (as of 2026-11-04; source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2). [#](#finding-4)
- 5,700 of 9,115 records (62.5%) are dated within the 30 days before 2026-11-04 (source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2). [#](#finding-5)

## ClinicalTrialStartPulse records by phase

| Group | Records | Share |
|---|---|---|
| Not applicable (device, behavioral) | 4,369 | 47.9% |
| Observational | 2,063 | 22.6% |
| Phase 2 | 1,114 | 12.2% |
| Phase 3 | 576 | 6.3% |
| Phase 1 | 570 | 6.3% |
| Phase 4 | 332 | 3.6% |
| Early phase 1 | 91 | 1.0% |

## Methodology and data provenance

- Sample: 9,115 public records dated 2026-09-14 to 2026-11-03; illustrative samples excluded.

- Source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2. Refreshed automatically about every 24 hours; figures above are as of 2026-11-04.

- Shares are of all records in the dataset; totals and medians use only records with a stated enrollment.

- Organization-level data only. Informational; verify individual records at the official source.

### Cite this study

Zalwin Research, "ClinicalTrialStartPulse statistics" (data as of 2026-11-04), https://zalwin.com/research/clinicaltrialstartpulse

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