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

Clinical Trials in California

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 9094 matching records are in this view (non-industry sponsors are out of scope by design, not truncated). Synced 17 Sep 2026, 08:23 UTC
9094
Studies in scope
industry-sponsored, all four open statuses
4935
Recruiting now
open to new participants
2188
Lead sponsors
across recruiting studies
Top states
California 7 Maryland 5 Florida 5 Texas 4 Connecticut 3
Narrow the registerReset
Recruitment status
Phase
Lead sponsor
Amgen2 Pfizer2 Exscientia AI Ltd., a wholly owned subsidiary of Recursion Pharmaceuticals, Inc.1 Phanes Therapeutics1 Abdera Therapeutics Inc.1
State
California7 Maryland5 Florida5 Texas4 Connecticut3
All 31 states
Target enrolment
to
7 of 9094 studies
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Status
Study
Lead sponsor
Phase
Enrol
US states
Start
Recruiting
Symbiotic-Lung-14: A Study to Learn About the Study Medicine Called PF08634404 in Combination With Chemotherapy in Adult Participants With Transformed Small Cell Lung Cancer
NCT07476287Small Cell Lung Cancer, Small Cell Lung Cancer ( SCLC ), Transformed Small Cell Lung Cancer, Lung Neoplasms
Pfizer
Phase 2
40
California, Illinois
2026-07-02
Recruiting
Dose Determining Study of EXS74539 (REC-4539) in Participants With Select Solid Tumors
NCT07517198Solid Tumor, Small Cell Lung Cancer (SCLC), High Grade Neuroendocrine Cancer, Small Cell Carcinomas of Non-lung Origin
Exscientia AI Ltd., a wholly owned subsidiary of Recursion Pharmaceuticals, Inc.
Phase 1
40
California, Texas, Utah
2026-04-13
Active, closed
Study of 225Ac-ABD147 to Establish Optimal Dose in Patients With SCLC and LCNEC of the Lung That Previously Received Platinum-based Chemotherapy
NCT06736418Small-Cell Lung Cancer (SCLC), Large Cell Neuroendocrine Carcinoma of the Lung
Abdera Therapeutics Inc.
Phase 1
17
California, Florida, Maryland, Massachusetts, Minnesota, New York, Texas, Utah
2025-03-10
Active, closed
A Phase 2, Open-label, Randomized, Multicenter Study of Tarlatamab Dosing Regimens in Subjects With SCLC
NCT06745323Small Cell Lung Cancer (SCLC)
Amgen
Phase 2
252
California, Connecticut, Florida, Illinois, Minnesota, New York, North Carolina, Pennsylvania
2025-02-26
Recruiting
A Study of Peluntamig (PT217) in Patients With Neuroendocrine Carcinomas Expressing DLL3 (the SKYBRIDGE Study)
NCT05652686Small Cell Lung Cancer (SCLC), Large Cell Neuroendocrine Cancer (LCNEC), Neuroendocrine Prostate Cancer (NEPC), Gastroenteropancreatic Neuroendocrine Carcinoma (GEP-NEC)
Phanes Therapeutics
Phase 1/2
203
California, Colorado, Connecticut, Maryland, Massachusetts, Missouri, North Carolina, Oklahoma
2023-09-05
Active, closed
Study Comparing Tarlatamab With Standard of Care Chemotherapy in Relapsed Small Cell Lung Cancer
NCT05740566Small Cell Lung Cancer (SCLC)
Amgen
Phase 3
509
Alabama, Alaska, Arkansas, California, Illinois, Indiana, Iowa, Kentucky
2023-05-31
Recruiting
A Study of Mevrometostat for Treatment of Relapsed/Refractory SCLC, Castration Resistant Prostate Cancer, and Follicular Lymphoma
NCT03460977Metastatic Castration Resistant Prostate Cancer (mCRPC), Small Cell Lung Cancer (SCLC), Follicular Lymphoma (FL)
Pfizer
Phase 1
453
Arizona, California, Connecticut, Kansas, Kentucky, Maryland, Massachusetts, Nebraska
2018-04-17
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1
Cite this view

Priya Life Science (2026). Clinical trial register: industry-sponsored studies with a US investigative site, filtered. Derived from ClinicalTrials.gov. Retrieved 18 September 2026. https://priyalifescience.com/clinical-trials-usa/state/california

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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.