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Trackers› Clinical trials› California
Clinical trial register · United States · industry-sponsored

Clinical Trials in California, 2026

Every industry-sponsored study on the ClinicalTrials.gov registry that lists a US site and is open, about to open, active-but-closed, or enrolling by invitation. This deliberately excludes academic and other non-industry sponsors — the full US registry across all sponsors runs to over 22,000 recruiting studies alone.

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Source: ClinicalTrials.gov. Complete coverage of the industry-sponsored slice — all 9156 matching records are in this view (non-industry sponsors are out of scope by design, not truncated). Synced 23 Oct 2026, 03:16 UTC
9156
Studies in scope
industry-sponsored, all four open statuses
4971
Recruiting now
open to new participants
2200
Lead sponsors
across recruiting studies
Top states
Florida 48 California 44 Arizona 24 Georgia 24 Colorado 21
Narrow the registerReset
Recruitment status
Phase
Lead sponsor
AstraZeneca231 Eli Lilly and Company157 AbbVie145 Merck Sharp & Dohme LLC129 Pfizer116 Clear sponsor filter
State
Florida48 California44 Arizona24 Georgia24 Colorado21
All 42 states
Target enrolment
to

Trials with a site in California

44 of 9156 studies
Download
Status
Study
Lead sponsor
Phase
Enrol
US states
Start
Not yet open
Boehringer Ingelheim
Phase 3
270
Arizona, California, Colorado, Kansas, Maryland, Massachusetts, Michigan, Minnesota
2026-12-14
Not yet open
Boehringer Ingelheim
Phase 3
600
Alabama, California, Florida, Louisiana, Maryland, North Carolina, Utah
2026-10-31
Not yet open
Boehringer Ingelheim
Phase 3
600
Arizona, California, Florida, Kansas, Massachusetts, New Mexico, North Carolina, South Carolina
2026-10-23
Recruiting
Boehringer Ingelheim
Phase 3
466
Alabama, California, Connecticut, Florida, Indiana, Kansas, Michigan, Minnesota
2026-09-17
Recruiting
Boehringer Ingelheim
Phase 3
600
Alabama, Arizona, Arkansas, California, Florida, Georgia, Hawaii, Idaho
2026-08-24
Recruiting
Boehringer Ingelheim
Phase 3
448
Alabama, Arizona, California, Colorado, District of Columbia, Florida, Illinois, Louisiana
2026-07-27
Recruiting
Boehringer Ingelheim
Phase 3
35
California, Colorado, Maryland, Massachusetts, Minnesota, Ohio, Pennsylvania
2026-07-21
Recruiting
Boehringer Ingelheim
Phase 3
390
Arizona, California, Florida, Georgia, Illinois, Maryland, Massachusetts, Minnesota
2026-07-10
Active, closed
Boehringer Ingelheim
Phase 2
344
Alabama, California, Florida, Georgia, Kentucky, Michigan, Missouri, North Carolina
2026-06-30
Recruiting
Boehringer Ingelheim
Phase 1/2
49
Arizona, California, Connecticut, Florida, New York, North Carolina, North Dakota, Ohio
2026-05-14
Recruiting
Boehringer Ingelheim
Phase 2
405
California, Colorado, Florida, Michigan, Mississippi, Montana, North Carolina, Ohio
2026-04-20
Recruiting
Boehringer Ingelheim
Phase 2
132
Alabama, California, Colorado, Florida, Illinois, Maryland, Michigan, New York
2026-03-23
Recruiting
A Study to Test How Well Different Doses of BI 3820768 Are Tolerated by People With Advanced Cancer (Solid Tumours)
NCT07306559Advanced Relapsed or Refractory Germ Cell Tumours, Advanced Relapsed or Refractory Endometrial Cancer, Advanced Relapsed or Refractory Ovarian Cancer
Boehringer Ingelheim
Phase 1
187
California, Indiana, Texas
2026-02-27
Recruiting
Boehringer Ingelheim
Phase 2
30
Arizona, California, Colorado, Florida, Georgia, Iowa, Kansas, Maryland
2026-02-27
Recruiting
Boehringer Ingelheim
Phase 3
286
Alabama, Arizona, California, Colorado, District of Columbia, Florida, Georgia, Illinois
2026-02-16
Recruiting
A Study to Test Whether Nerandomilast Can Help Slow Down Changes in the Lung in People With a Family History of Pulmonary Fibrosis
NCT07201922Familial Pulmonary Fibrosis, Interstitial Lung Abnormalities, Interstitial Lung Diseases
DrugNerandomilast
Boehringer Ingelheim
Phase 3
80
California, Colorado, Florida, Kansas, Massachusetts, Michigan, Minnesota, New York
2026-02-10
Recruiting
Boehringer Ingelheim
Phase 3
400
California, District of Columbia, Florida, Georgia, Idaho, Illinois, Massachusetts, Nevada
2026-01-16
Active, closed
Boehringer Ingelheim
Phase 3
135
Alabama, California, Florida, Georgia, Illinois, Indiana, Kentucky, Maryland
2025-12-09
Active, closed
A Study to Test Whether Nerandomilast Helps People With Lung Fibrosis Related to Rheumatic Diseases
NCT06806592Interstitial Lung Diseases, Systemic Autoimmune Rheumatic Diseases Associated Interstitial Lung Diseases
DrugNerandomilast
Boehringer Ingelheim
Phase 3
414
Alabama, Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois
2025-09-13
Active, closed
Boehringer Ingelheim
Phase 1
16
California, Pennsylvania, Texas
2025-07-29
Recruiting
Boehringer Ingelheim
Phase 3
11,800
Alabama, Arizona, California, Colorado, Connecticut, Florida, Georgia, Hawaii
2025-07-22
Recruiting
Boehringer Ingelheim
Phase 1
32
California, Florida, Texas
2025-07-17
Recruiting
Boehringer Ingelheim
Phase 3
1,755
Alabama, Arizona, California, Colorado, Connecticut, District of Columbia, Florida, Georgia
2025-06-09
Recruiting
Boehringer Ingelheim
Phase 2
300
Arizona, California, Colorado, Connecticut, Florida, Georgia, Indiana, Kansas
2025-06-05
Recruiting
Boehringer Ingelheim
Phase 3
4,200
California, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Louisiana
2025-05-20
Active, closed
Boehringer Ingelheim
Phase 2
150
Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Kentucky
2025-01-31
Active, closed
Boehringer Ingelheim
Phase 2
202
Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Kentucky
2025-01-06
Active, closed
Boehringer Ingelheim
Phase 2
90
California, Connecticut, Florida, Missouri, Nebraska, New York, Tennessee, Texas
2024-12-30
Recruiting
Boehringer Ingelheim
Phase 3
1,590
Arizona, California, Colorado, Connecticut, Florida, Georgia, Indiana, Iowa
2024-11-12
Recruiting
Boehringer Ingelheim
Phase 3
1,800
Alabama, Arizona, California, Colorado, Connecticut, Florida, Georgia, Indiana
2024-10-14
Recruiting
Boehringer Ingelheim
Phase 2
588
Alaska, Arizona, California, Connecticut, Florida, Illinois, Indiana, Maryland
2024-10-11
Active, closed
Boehringer Ingelheim
Phase 3
1,666
Alabama, Arizona, California, Colorado, Connecticut, Delaware, District of Columbia, Florida
2024-09-26
Active, closed
Boehringer Ingelheim
Phase 3
8,371
Alabama, Arizona, California, Colorado, Florida, Georgia, Idaho, Illinois
2024-08-30
Recruiting
Boehringer Ingelheim
Phase 1/2
768
California, Connecticut, Florida, Illinois, Indiana, Iowa, Massachusetts, Michigan
2024-06-28
Recruiting
Boehringer Ingelheim
Phase 3
6,712
Alabama, California, Connecticut, Florida, Georgia, Idaho, Illinois, Indiana
2024-06-17
Recruiting
Boehringer Ingelheim
Phase 2
175
Arizona, California, Colorado, Connecticut, Florida, Hawaii, Maine, Maryland
2024-05-15
Active, closed
Boehringer Ingelheim
Phase 3
428
Alabama, Arizona, California, Missouri, Nevada, New York, North Carolina, Ohio
2024-02-09
Recruiting
Boehringer Ingelheim
Phase 1
20
California, Tennessee
2024-01-30
Recruiting
DAREON™-5: A Study to Test Whether Different Doses of BI 764532 Help People With Small Cell Lung Cancer or Other Neuroendocrine Cancers
NCT05882058Small Cell Lung Carcinoma, Neuroendocrine Neoplasms, Extra-pulmonary Neuroendocrine Carcinoma
DrugObrixtamig
Boehringer Ingelheim
Phase 2
204
Alabama, Arizona, California, Florida, Indiana, Kansas, Kentucky, Maryland
2023-10-13
Active, closed
Boehringer Ingelheim
Phase 2
268
California, Florida, Kansas, New York, Ohio, South Carolina, Texas
2023-09-08
Active, closed
Boehringer Ingelheim
Phase 1
59
California, Colorado, Florida, Michigan, New York, Ohio, Texas, Virginia
2023-05-11
Recruiting
Boehringer Ingelheim
Phase 1
66
California, Connecticut, New Jersey
2023-02-24
Active, closed
Boehringer Ingelheim
Phase 1
151
Arizona, California, North Carolina, South Dakota, Texas
2021-10-18
Active, closed
Boehringer Ingelheim
Phase 1
554
Alabama, California, District of Columbia, Florida, Georgia, Hawaii, New York, North Carolina
2021-07-02
Rows per page Showing 1–44 of 44
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Cite this view

Priya Life Science (2026). Clinical trial register: industry-sponsored studies with a US investigative site, filtered. Derived from ClinicalTrials.gov. Retrieved 24 October 2026. https://priyalifescience.com/clinical-trials-usa/state/california

Query this register directly
GET /api/trials?country=usa&status=recruiting&format=json Try it now →

About this register

This register is built from ClinicalTrials.gov, the trial registry run by the U.S. National Library of Medicine. It includes every industry-sponsored study on the registry that lists at least one investigative site in the US and is recruiting, not yet recruiting, active but no longer recruiting, or enrolling by invitation: 9,156 studies in total at the last sync on 23 Oct 2026, 03:16 UTC. Academic and other non-industry sponsors are out of scope by design. The full list can be downloaded as CSV or queried as JSON through the register API.

This page shows the 44 of those studies with a site in California that also match the filters currently applied.

How many clinical trials are recruiting in California?

27 of the 44 studies on this page are recruiting new participants as of the 23 Oct 2026, 03:16 UTC sync. A further 3 have not yet opened recruitment, 14 are active but closed to new participants, and 0 are enrolling by invitation only. Eligibility for any study is decided by its study team.

Summary by phase

Studies by phase (California), 44 studies
PhaseStudiesRecruitingShare
Phase 3221450%
Phase 212727.3%
Phase 18418.2%
Phase 1/2224.5%

Most active sponsors

Lead sponsors with the most studies (California)
Lead sponsorStudiesRecruiting
Boehringer Ingelheim4427
Listing here is informational and not medical advice; eligibility is determined by each study team. Compare pay for the teams running these studies in the US Pharma Salary Guide, see who's behind them in the US Company Directory, or track approvals on the FDA Approvals Tracker. For Irish, UK and EU sites, see the Ireland, UK and EU registers.