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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 9112 matching records are in this view (non-industry sponsors are out of scope by design, not truncated). Synced 23 Sep 2026, 03:16 UTC
9112
Studies in scope
industry-sponsored, all four open statuses
4950
Recruiting now
open to new participants
2202
Lead sponsors
across recruiting studies
Top states
Florida 151 California 150 Arizona 97 Georgia 87 Illinois 72
Narrow the registerReset
Recruitment status
Phase
Lead sponsor
AstraZeneca230 Eli Lilly and Company150 AbbVie142 Merck Sharp & Dohme LLC130 Novartis Pharmaceuticals113 Clear sponsor filter
State
Florida151 California150 Arizona97 Georgia87 Illinois72
All 44 states
Target enrolment
to

Trials with a site in California

150 of 9112 studies
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Status
Study
Lead sponsor
Phase
Enrol
US states
Start
Not yet open
A Study of LY4405094 in Healthy Participants and Participants With Alzheimer's Disease
NCT07787182Healthy Volunteers, Alzheimer Disease, Amyloid, Plaque, Amyloid
Eli Lilly and Company
Phase 1
68
California, Florida, Georgia, Michigan
2026-09
Not yet open
Efficacy, Safety, and Pharmacokinetics of Tirzepatide (LY3298176) Once Weekly Versus Placebo in Pediatric Participants 6 to Less Than 12 Years of Age Who Have Obesity (ADVANCE-SURMOUNT-KIDS)
NCT07817875Obesity
Eli Lilly and Company
Phase 3
150
Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Indiana
2026-09
Not yet open
A Study of Orforglipron (LY3502970) Compared With Dulaglutide in Pediatric Participants With Type 2 Diabetes
NCT07668336Diabetes Mellitus, Type 2
Eli Lilly and Company
Phase 3
170
California, Connecticut, Georgia, Idaho, Kansas, New York, Oklahoma, Pennsylvania
2026-09
Not yet open
A Master Protocol Studying Multiple Amyloid-Targeting Therapies in Healthy Participants and Participants With Alzheimer's Disease
NCT07787169Alzheimer Disease, Amyloid, Plaque, Amyloid, Healthy Volunteers
Eli Lilly and Company
Phase 1
179
California, Florida, Georgia, Michigan
2026-09
Recruiting
A Study of Clazakizumab (LY5724886) in Adults With Elevated hsCRP and at Increased Risk for Cardiovascular Event
NCT07783802Atherosclerosis, Cardiovascular Disease, Obesity, Hypertension
Eli Lilly and Company
Phase 2
120
Alabama, Arizona, California, Florida, Georgia, Illinois, Indiana, Massachusetts
2026-08-27
Recruiting
A Study of LY4226695 in Healthy Participants
NCT07767487Healthy
Eli Lilly and Company
Phase 1
148
California
2026-08-27
Recruiting
A Study of Orforglipron in Participants With Overweight at Risk of Development of Obesity-Related Complications or Progression to Class 1 Obesity
NCT07794579Overweight, Prediabetic State, Prehypertension, Obesity, Abdominal
Eli Lilly and Company
Phase 3
2,001
Alabama, Arizona, California, Connecticut, Florida, Georgia, Idaho, Illinois
2026-08-26
Recruiting
A Chronic Pain Master Protocol (CPMP): A Study of LY4065967 in Participants With Chronic Low Back Pain
NCT07641504Chronic Pain, Low Back Pain
Eli Lilly and Company
Phase 2
150
Alabama, Arizona, California, Connecticut, Florida, Georgia, Illinois, Louisiana
2026-08-12
Not yet open
A Study of Brenipatide (LY3537031) in Adult Participants With Moderate-to-Severe Chronic Obstructive Pulmonary Disease (COPD)
NCT07759245Pulmonary Disease, Chronic Obstructive
Eli Lilly and Company
Phase 2
606
Alabama, California, Colorado, Florida, Illinois, Indiana, Massachusetts, Michigan
2026-08
Not yet open
A Study of Brenipatide (LY3537031) in Adult Participants With Major Depressive Disorder
NCT07775300Depressive Disorder, Major
Eli Lilly and Company
Phase 3
1,000
Alabama, Arizona, California, Florida, Georgia, Illinois, Maryland, Massachusetts
2026-08
Recruiting
A Study of LY4178256 in Healthy Participants
NCT07698210Healthy Volunteers
Eli Lilly and Company
Phase 1
88
California, Utah
2026-07-16
Recruiting
A Chronic Pain Master Protocol (CPMP): A Study of LY4065967 in Participants With Osteoarthritis Pain
NCT07641517Osteoarthritis, Knee, Chronic Pain
Eli Lilly and Company
Phase 2
150
Alabama, Arizona, California, Connecticut, Florida, Georgia, Illinois, Louisiana
2026-06-25
Recruiting
A Study to See if Lepodisiran Can Reduce Plaque in Coronary Arteries of Adults With Elevated Lp(a) Who Have Had Heart Events or Are at High Risk
NCT07613294Atherosclerosis, Cardiovascular Diseases, Lipoprotein(a)
Eli Lilly and Company
Phase 3
252
California, Florida, Idaho, Massachusetts, Michigan, Nevada, Pennsylvania, Utah
2026-06-01
Recruiting
A Study of LY4152199 in Participants With Previously Treated B-cell Malignancies (BAF_FRontier-1 )
NCT07101328Lymphoma, Non-Hodgkin, B-cell Lymphoma, Lymphoma, Large B-Cell, Diffuse, Lymphoma, Follicular
Eli Lilly and Company
Phase 1
215
California, Colorado, Connecticut, Illinois, Iowa, Kansas, Massachusetts, Michigan
2026-05-28
Recruiting
A Study of Donanemab (LY3002813) in Participants Who Completed Study AACM (TRAILBLAZER-ALZ 3-EXT).
NCT07602582Alzheimer Disease, Dementia, Plaque, Amyloid
Eli Lilly and Company
Phase 3
550
Arizona, California, Florida, Georgia, Idaho, Illinois, Indiana, Iowa
2026-05-22
Recruiting
A Study of LY3439539 in Participants With Alzheimer's Disease
NCT07598370Alzheimer Disease
Eli Lilly and Company
Phase 1
30
California, Florida
2026-05-21
Recruiting
A Study of Donanemab (LY3002813) in Participants With Early Cognitive Decline (TRAILBLAZER-ALZ 7)
NCT07589595Cognitive Dysfunction, Lewy Body Disease, Synucleinopathies, Amyloid
Eli Lilly and Company
Phase 2
350
Arizona, California, Colorado, Connecticut, Florida, Indiana, Kansas, Massachusetts
2026-05-20
Recruiting
A Study to Investigate Weight Management With Macupatide and Eloralintide, Alone or in Combination, in Adult Participants With Obesity or Overweight
NCT07589608Overweight, Obesity
Eli Lilly and Company
Phase 2
400
Arizona, California, Connecticut, Florida, Idaho, Illinois, Kansas, Kentucky
2026-05-15
Recruiting
A Study of Imlunestrant (LY3484356) in Premenopausal Women With Estrogen Receptor-Positive (ER+) Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Early Breast Cancer
NCT07287098Breast Neoplasms
Eli Lilly and Company
Phase 2
600
Alabama, Arizona, California, Colorado, Florida, Georgia, Indiana, Kentucky
2026-05-13
Recruiting
A Study of Brenipatide (LY3537031) in Participants With Irritable Bowel Syndrome-Diarrhea (IBS-D)
NCT07545759Irritable Bowel Syndrome, Diarrhea
Eli Lilly and Company
Phase 2
531
Arizona, California, Florida, Illinois, Indiana, Kentucky, Michigan, Minnesota
2026-05-06
Recruiting
A Master Protocol (IIBD): A Study of Multiple Drugs in Adults With Ulcerative Colitis or Crohn's Disease
NCT07483073Colitis, Ulcerative, Crohn Disease
Eli Lilly and Company
Phase 2
60
Arizona, California, Colorado, Florida, Georgia, Illinois, Kansas, Michigan
2026-05-04
Recruiting
A Study of LY4395089 and Mirikizumab (LY3074828) Given Together and Mirikizumab (Alone) in Adults With Crohn's Disease
NCT07483099Crohn Disease
Eli Lilly and Company
Phase 2
60
Arizona, California, Colorado, Florida, Georgia, Illinois, Kansas, Michigan
2026-05-04
Recruiting
A Study of Brenipatide (LY3537031) in Participants With Irritable Bowel Syndrome-Constipation (IBS-C)
NCT07545772Irritable Bowel Syndrome, Constipation
Eli Lilly and Company
Phase 2
342
Arizona, California, Florida, Illinois, Indiana, Kentucky, New York, Ohio
2026-04-29
Recruiting
A Study of LY4584180 in Adult Participants With Previously Treated Blood Cancers
NCT07226843Lymphoma, Non-Hodgkin's, Lymphoma, Diffuse Large B-Cell, Follicular Lymphoma
Eli Lilly and Company
Phase 1
460
Arizona, California, Colorado, Florida, Georgia, Massachusetts, Minnesota, New York
2026-04-17
Recruiting
A Study of LY4005130 in Adult Participants With Severe Alopecia Areata (Hair Loss)
NCT07533006Alopecia Areata
Eli Lilly and Company
Phase 2
60
California, Florida, Massachusetts, Michigan, New Hampshire, Texas, Utah
2026-04-14
Recruiting
A Study of LY4005130 in Adult Participants With Non-Segmental Vitiligo
NCT07533019Vitiligo, Non-Segmental Vitiligo (NSV)
Eli Lilly and Company
Phase 2
66
Arizona, California, Florida, Georgia, Indiana, Massachusetts, Michigan, New Hampshire
2026-04-14
Recruiting
LY4268989 in Adults With Moderately to Severely Active Ulcerative Colitis
NCT07415044Ulcerative Colitis (UC), Ulcerative Colitis, Active Moderate, Ulcerative Colitis, Active Severe
Eli Lilly and Company
Phase 2
1,431
Arizona, California, Colorado, Connecticut, Florida, Idaho, Illinois, Indiana
2026-03-26
Recruiting
A Chronic Pain Master Protocol (CPMP): A Study of LY4065967 in Participants With Diabetic Peripheral Neuropathic Pain
NCT07285018Diabetic Peripheral Neuropathic Pain
Eli Lilly and Company
Phase 2
150
Alabama, Arizona, California, Connecticut, Florida, Georgia, Illinois, Louisiana
2026-02-16
Recruiting
A Study of Brenipatide in Participants With Opioid Use Disorder
NCT07420283Opioid Use Disorder
Eli Lilly and Company
Phase 2
465
Arizona, Arkansas, California, Florida, Illinois, Indiana, Kentucky, Maryland
2026-02-13
Recruiting
A Study of Brenipatide in Adult Participants With Schizophrenia
NCT07410507Schizophrenia
Eli Lilly and Company
Phase 2
450
Arkansas, California, Connecticut, Florida, Georgia, Illinois, Maryland, Massachusetts
2026-02-10
Recruiting
A Study of Eloralintide (LY3841136) in Participants With Persistent Obesity Who Are Treated With a Weekly Incretin
NCT07392190Overweight, Obesity
Eli Lilly and Company
Phase 3
900
Alabama, Arizona, California, Connecticut, Florida, Georgia, Idaho, Illinois
2026-02-10
Recruiting
A Study of Eloralintide (LY3841136) in Participants With Obstructive Sleep Apnea and Obesity or Overweight
NCT07369011Sleep Apnea, Obstructive, Obesity, Overweight
Eli Lilly and Company
Phase 3
800
Alabama, California, Colorado, Florida, Georgia, Louisiana, Maryland, Michigan
2026-02-10
Recruiting
A Study of Brenipatide in Adult Participants With Major Depressive Disorder
NCT07412756Depressive Disorder, Major
Eli Lilly and Company
Phase 3
1,000
California, Connecticut, Florida, Georgia, Indiana, Iowa, Maryland, Massachusetts
2026-02-09
Recruiting
Efficacy and Safety of Eloralintide (LY3841136) in Participants With Osteoarthritis Knee Pain and Obesity or Overweight
NCT07353931Osteoarthritis, Overweight or Obesity
Eli Lilly and Company
Phase 3
900
Alabama, Arizona, California, Colorado, Florida, Georgia, Idaho, Illinois
2026-02-09
Recruiting
A Study of Eloralintide (LY3841136) in Participants With Obesity, or Overweight Without Type 2 Diabetes
NCT07321886Obesity, Overweight
Eli Lilly and Company
Phase 3
1,980
Alabama, Arizona, California, Connecticut, Florida, Georgia, Hawaii, Iowa
2026-02-06
Active, closed
A Study of Retatrutide (LY3437943) in Participants Without Type 2 Diabetes Who Have Obesity or Overweight
NCT07357415Obesity, Overweight
Eli Lilly and Company
Phase 3
600
Arizona, California, Florida, Hawaii, Kentucky, Massachusetts, Michigan, New York
2026-01-24
Recruiting
A Study of Baricitinib (LY3009104) for the Delay of Stage 3 Type 1 Diabetes in At-Risk Children and Adults
NCT07222137Diabetes Mellitus, Type 1
Eli Lilly and Company
Phase 3
150
California, Florida, Iowa, Kentucky, Pennsylvania, Virginia
2026-01-12
Recruiting
A Study of Tersolisib (LY4064809/STX-478) With Other Anti-Cancer Treatments in Participants With Advanced Breast Cancer With a Genetic Change (PIK3CA)
NCT07174336Breast Neoplasms, Neoplasm Metastasis
Eli Lilly and Company
Phase 3
800
Alaska, Arizona, Arkansas, California, Colorado, District of Columbia, Florida, Georgia
2025-12-22
Recruiting
A Study of Eloralintide (LY3841136) in Participants With Obesity or Overweight, and Type 2 Diabetes
NCT07282600Overweight, Obesity
Eli Lilly and Company
Phase 3
1,035
Alabama, Arizona, California, Colorado, Connecticut, Florida, Georgia, Hawaii
2025-12-15
Recruiting
A Study of Vepugratinib (LY3866288) in Participants With Cancer in the Urinary Tract
NCT07218380Carcinoma, Transitional Cell, Urinary Bladder Neoplasms, Neoplasm Metastasis
Eli Lilly and Company
Phase 3
450
Arizona, Arkansas, California, Colorado, Connecticut, District of Columbia, Florida, Idaho
2025-12-12
Recruiting
A Study of Solbinsiran (LY3561774) in Participants With Severe Hypertriglyceridemia
NCT07269210Severe Hypertriglyceridemia
Eli Lilly and Company
Phase 2
60
Arizona, California, Connecticut, Florida, Illinois, Indiana, Kentucky, Maryland
2025-12-08
Recruiting
A Study to Evaluate LY3537021 for the Treatment of Nausea and Vomiting Caused by Chemotherapy in Adults With Cancer
NCT07169851Nausea, Vomiting, Drug-Related Side Effects and Adverse Reactions, Neoplasms
Eli Lilly and Company
Phase 2
204
California, Colorado, Florida, Georgia, Illinois, Indiana, Mississippi, New York
2025-11-28
Recruiting
A Study of Brenipatide in Adult Participants With Bipolar Disorder (RENEW-Bipolar-1)
NCT07286175Bipolar Disorder
Eli Lilly and Company
Phase 2
400
California, Connecticut, Florida, Georgia, Iowa, Maryland, Massachusetts, Pennsylvania
2025-11-24
Active, closed
A Study of Retatrutide (LY3437943) in Participants With Obesity or Overweight
NCT07232719Obesity, Overweight
Eli Lilly and Company
Phase 3
250
California, Florida, Illinois, Kentucky, Louisiana, Maryland, Missouri, New Jersey
2025-11-17
Recruiting
LY4268989 (MORF-057) Co-Administered With Mirikizumab in Adults With Moderately to Severely Active Ulcerative Colitis:
NCT07186101Ulcerative Colitis
Eli Lilly and Company
Phase 2
252
Arizona, California, Colorado, Florida, Illinois, Indiana, Kentucky, Massachusetts
2025-11-10
Recruiting
Efficacy and Safety of Orforglipron in Participants With Peripheral Artery Disease
NCT07223593Peripheral Arterial Disease
Eli Lilly and Company
Phase 3
1,205
Alabama, Arizona, California, Colorado, Florida, Indiana, Maryland, Michigan
2025-10-31
Recruiting
A Study to Evaluate Brenipatide Compared With Placebo in Adult Participants With Uncontrolled Moderate to Severe Asthma
NCT07219173Asthma
Eli Lilly and Company
Phase 2
531
Arizona, California, Colorado, Florida, Illinois, Kentucky, Massachusetts, Nevada
2025-10-22
Recruiting
A Study of LY4337713 in Participants With FAP-Positive Solid Tumors
NCT07213791Ovarian Neoplasms, Breast Neoplasms, Pancreatic Intraductal Neoplasms, Colorectal Neoplasms
Eli Lilly and Company
Phase 1
241
California, Florida, Indiana, Maryland, Massachusetts, Michigan, Minnesota, Missouri
2025-10-22
Recruiting
A Three-Part Phase 3 Study of Sofetabart Mipitecan in Participants With Platinum-Resistant (Part A) and Platinum-Sensitive (Parts B and C) Ovarian Cancer
NCT07213804Ovarian Neoplasms, Fallopian Tube Neoplasms, Peritoneal Neoplasms, Neoplasm Metastasis
Eli Lilly and Company
Phase 3
1,630
Alabama, Arizona, California, Colorado, Connecticut, Florida, Georgia, Hawaii
2025-10-22
Recruiting
A Study of Brenipatide in Participants With Alcohol Use Disorder
NCT07219953Alcohol Use Disorder
Eli Lilly and Company
Phase 3
1,100
Arizona, Arkansas, California, Florida, Illinois, Maryland, Massachusetts, New York
2025-10-16
Recruiting
A Study of Brenipatide in Participants With Moderate-to-Severe Alcohol Use Disorder
NCT07219966Alcohol Use Disorder
Eli Lilly and Company
Phase 3
1,100
Alabama, Arizona, Arkansas, California, Colorado, Florida, Illinois, Maryland
2025-10-15
Recruiting
A Master Protocol of Multiple Agents in Adults With Metabolic Dysfunction-Associated Steatotic Liver Disease (SYNERGY-Outcomes)
NCT07165028Metabolic Dysfunction-Associated Steatotic Liver Disease
Eli Lilly and Company
Phase 3
4,500
Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia
2025-10-15
Active, closed
A Study of LY3938577 in Participants With Type 2 Diabetes Previously Treated With Basal Insulin
NCT07215312Diabetes Mellitus, Type 2
Eli Lilly and Company
Phase 2
100
Arizona, California, Florida, Iowa, Missouri, North Carolina, Oklahoma, South Carolina
2025-10-13
Recruiting
A Study of Orforglipron in Female Participants With Stress Urinary Incontinence Who Have Obesity or Overweight
NCT07202884Urinary Incontinence,Stress
Eli Lilly and Company
Phase 3
1,000
Alabama, Arizona, California, Colorado, Florida, Georgia, Michigan, Pennsylvania
2025-09-30
Recruiting
A Study of Orforglipron (LY3502970) in Participants With Obesity or Overweight and Osteoarthritis (OA) of the Knee
NCT07153471Osteoarthritis
Eli Lilly and Company
Phase 3
800
Arizona, California, Colorado, Connecticut, Georgia, Illinois, Kansas, Massachusetts
2025-09-15
Recruiting
Assessing the Impact of Muvalaplin on Major Cardiovascular Events in Adults With Elevated Lipoprotein(a)
NCT07157774Elevated Lp(a), Atherosclerotic Cardiovascular Disease (ASCVD)
Eli Lilly and Company
Phase 3
10,450
Alabama, Arizona, California, Colorado, Connecticut, Florida, Georgia, Idaho
2025-09-02
Recruiting
A Study of LY4257496 in Participants With Cancer (OMNIRAY)
NCT07114601Breast Neoplasms, Colorectal Neoplasms, Prostate Neoplasm, Endometrial Neoplasms
Eli Lilly and Company
Phase 1
421
California, Florida, Georgia, Massachusetts, Michigan, Missouri, New York, Pennsylvania
2025-08-06
Recruiting
A Study of Pirtobrutinib in Participants With Immune Thrombocytopenia
NCT06721013Immune Thrombocytopenia (ITP)
Eli Lilly and Company
Phase 1/2
68
California, District of Columbia, Florida, Illinois, Louisiana, Minnesota, New York, Texas
2025-07-30
Recruiting
A Study of LY4175408 in Participants With Advanced Cancer
NCT07046923Carcinoma, Non-Small-Cell Lung, Small Cell Lung Carcinoma, Endometrial Neoplasms, Neoplasm Metastasis
Eli Lilly and Company
Phase 1
240
California, Florida, Illinois, Indiana, Massachusetts, Missouri, New Jersey, New York
2025-07-28
Recruiting
A Study of LY4088044 in Healthy Participants
NCT07090785Healthy
Eli Lilly and Company
Phase 1
104
California, Kansas, Texas, Utah
2025-07-24
Recruiting
Mirikizumab Administered at the Same Time as Tirzepatide in Adult Participants With Moderately to Severely Active Ulcerative Colitis and Obesity or Overweight: Phase 3b Study
NCT06937086Ulcerative Colitis, Obesity or Overweight
Eli Lilly and Company
Phase 3
350
Alabama, California, Florida, Idaho, Illinois, Indiana, Kentucky, Louisiana
2025-06-26
Recruiting
Mirikizumab and Tirzepatide Administered in Adult Participants With Moderately to Severely Active Crohn's Disease and Obesity or Overweight
NCT06937099Crohn's Disease, Obesity or Overweight
Eli Lilly and Company
Phase 3
290
Alabama, California, Florida, Idaho, Illinois, Indiana, Kentucky, Louisiana
2025-06-26
Active, closed
A Study to See How Well Lebrikizumab Works in Adults and Adolescents With Moderate Atopic Dermatitis (Eczema) and High Itch Burden
NCT07006792Atopic Dermatitis
Eli Lilly and Company
Phase 4
233
Alabama, Arizona, California, Florida, Georgia, Illinois, Indiana, Kentucky
2025-06-16
Active, closed
A Study of LY3981314 in Healthy Participants
NCT07005284Healthy
Eli Lilly and Company
Phase 1
76
California
2025-06-09
Active, closed
A Study of Retatrutide (LY3437943) in Participants Who Have Obesity or Overweight and Chronic Low Back Pain
NCT07035093Obesity, Overweight, Chronic Low Back Pain (CLBP)
Eli Lilly and Company
Phase 3
586
Arizona, California, Colorado, Florida, Kansas, Louisiana, Massachusetts, Michigan
2025-05-29
Active, closed
A Study of LY3867070 in Healthy Participants
NCT07021547Healthy
Eli Lilly and Company
Phase 1
196
California, Texas
2025-05-27
Active, closed
A Study of Orforglipron (LY3502970) in Participants With Obesity or Overweight and Type 2 Diabetes
NCT06972472Obesity, Overweight, Type 2 Diabetes
Eli Lilly and Company
Phase 3
600
Arizona, California, Florida, Georgia, Idaho, Louisiana, Maryland, Michigan
2025-05-19
Active, closed
A Study of Orforglipron (LY3502970) in Participants With Obesity or Overweight and at Least One Weight-Related Comorbidity
NCT06972459Obesity, Overweight
Eli Lilly and Company
Phase 3
800
Arizona, California, Florida, Georgia, Idaho, Louisiana, Maryland, Michigan
2025-05-15
Active, closed
A Master Protocol for Orforglipron (LY3502970) in Participants With Obesity or Overweight With and Without Type 2 Diabetes
NCT06993792Obesity, Overweight, Type 2 Diabetes
Eli Lilly and Company
Phase 3
1,400
Arizona, California, Florida, Georgia, Idaho, Louisiana, Maryland, Michigan
2025-05-15
Active, closed
A Long-Term Study of Tirzepatide (LY3298176) in Adults With Type 1 Diabetes and Obesity or Overweight
NCT06962280Type 1 Diabetes, Obesity, Overweight
Eli Lilly and Company
Phase 3
465
California, Colorado, Florida, Iowa, Minnesota, Missouri, Nevada, North Carolina
2025-05-12
Active, closed
A Master Protocol for Orforglipron (LY3502970) in Participants With Hypertension and Obesity or Overweight: (ATTAIN-Hypertension Screening)
NCT06948422Hypertension
Eli Lilly and Company
Phase 3
974
Arizona, California, Connecticut, Florida, Hawaii, Maryland, Massachusetts, Michigan
2025-04-30
Active, closed
A Master Protocol Study of Orforglipron (LY3502970) in Participants With Hypertension and Obesity or Overweight (ATTAIN-Hypertension) GZL1
NCT06948435Hypertension, Overweight or Obesity
Eli Lilly and Company
Phase 3
487
Arizona, California, Connecticut, Florida, Hawaii, Maryland, Massachusetts, Michigan
2025-04-30
Active, closed
A Master Protocol Study of Orforglipron (LY3502970) in Participants With Hypertension and Obesity or Overweight (ATTAIN-Hypertension) GZL2
NCT06952530Hypertension
Eli Lilly and Company
Phase 3
487
Arizona, California, Connecticut, Florida, Hawaii, Maryland, Massachusetts, Michigan
2025-04-30
Active, closed
A Study of Tirzepatide (LY3298176) Compared With Placebo in Adults With Type 1 Diabetes and Obesity or Overweight
NCT06914895Type 1 Diabetes, Obesity, Overweight
Eli Lilly and Company
Phase 3
905
California, Colorado, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa
2025-04-25
Recruiting
A Study of LY3457263 Compared With Placebo in Participants With Type 2 Diabetes on a Stable Dose of Semaglutide or Tirzepatide
NCT06897475Type 2 Diabetes
Eli Lilly and Company
Phase 2
200
Arizona, California, Florida, Georgia, Idaho, Indiana, New Jersey, New York
2025-03-28
Recruiting
Study of Olomorasib (LY3537982) in Combination With Standard of Care in Participants With Resected or Unresectable KRAS G12C-mutant Non-Small Cell Lung Cancer
NCT06890598Carcinoma, Non-Small-Cell Lung
Eli Lilly and Company
Phase 3
700
Alabama, Arizona, Arkansas, California, Connecticut, District of Columbia, Florida, Georgia
2025-03-27
Recruiting
A Study to Investigate the Effectiveness of Tirzepatide (LY3298176) Following Initiation of Ixekizumab (LY2439821) in Participants With Moderate-to-Severe Plaque PsO and Obesity or Overweight in Clinical Practice (TOGETHER AMPLIFY-PsO)
NCT06857942Psoriasis, Overweight or Obesity
Eli Lilly and Company
Phase 4
200
Arizona, California, Florida, Georgia, Indiana, Kentucky, Maryland, Massachusetts
2025-03-19
Active, closed
A Study to Investigate Effectiveness of Tirzepatide Following Initiation of Ixekizumab in Participants With Active Psoriatic Arthritis and Overweight or Obesity in Clinical Practice (TOGETHER AMPLIFY-PsA)
NCT06864026Psoriatic Arthritis, Overweight or Obesity
Eli Lilly and Company
Phase 4
200
Arizona, California, Florida, Georgia, Illinois, Indiana, Louisiana, Maryland
2025-03-06
Active, closed
A Study of Retatrutide (LY3437943) in the Maintenance of Weight Reduction in Individuals With Obesity
NCT06859268Obesity
Eli Lilly and Company
Phase 3
643
California, Colorado, Connecticut, Florida, Georgia, Hawaii, Illinois, Kentucky
2025-03-05
Recruiting
A Study of LY4006896 in Healthy Participants and Participants With Parkinson's Disease
NCT06809400Parkinson Disease
Eli Lilly and Company
Phase 1
127
California, Florida, Michigan, Texas, Washington
2025-02-18
Recruiting
A Study of Dulaglutide (LY2189265) 3.0 mg and 4.5 mg in Pediatric Participants With Type 2 Diabetes Mellitus (AWARD-PEDS PLUS)
NCT06739122Type 2 Diabetes
Eli Lilly and Company
Phase 3
55
Arizona, Arkansas, California, Colorado, Connecticut, District of Columbia, Florida, Georgia
2025-01-10
Recruiting
A Platform Trial for Pediatric Participants With Obesity or Overweight (LY900040)
NCT06672549Obesity, Overweight
Eli Lilly and Company
Phase 3
125
Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Indiana
2024-11-18
Recruiting
A Study of Orforglipron (LY3502970) in Adolescent Participants With Obesity, or Overweight With Related Comorbidities
NCT06672939Obesity, Overweight
Eli Lilly and Company
Phase 3
150
California, Connecticut, Georgia, Illinois, Louisiana, Missouri, North Carolina, Pennsylvania
2024-11-18
Active, closed
A Study of Retatrutide (LY3437943) Compared to Tirzepatide (LY3298176) in Adults Who Have Obesity
NCT06662383Obesity
Eli Lilly and Company
Phase 3
800
Arizona, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Illinois
2024-11-01
Recruiting
A Study of LY4006895 in Healthy Participants With Early Symptomatic Alzheimer's Disease (AD)
NCT06657768Alzheimer Disease, Healthy
Eli Lilly and Company
Phase 1
128
California, Florida, Georgia, Michigan, New Jersey, North Carolina
2024-10-29
Active, closed
A Study Comparing Abemaciclib Plus Temozolomide to Temozolomide Monotherapy in Children and Young Adults With High-grade Glioma Following Radiotherapy
NCT06413706Glioma
Eli Lilly and Company
Phase 2
45
California, Indiana, Maryland, Michigan, Minnesota, Rhode Island, Texas
2024-10-25
Active, closed
A Study of Remternetug (LY3372993) in Early Alzheimer's Disease (TRAILRUNNER-ALZ 3)
NCT06653153Alzheimer's Disease
Eli Lilly and Company
Phase 3
1,400
Alabama, Arizona, California, Colorado, Connecticut, Florida, Georgia, Idaho
2024-10-24
Active, closed
A Study of the Pan-KRAS Inhibitor LY4066434 in Participants With KRAS Mutant Solid Tumors
NCT06607185Pancreatic Ductal Adenocarcinoma, Non-small Cell Lung Cancer, Colorectal Cancer, Advanced Solid Tumor
Eli Lilly and Company
Phase 1
750
Alabama, Arizona, California, Connecticut, Illinois, Indiana, Massachusetts, Michigan
2024-10-21
Active, closed
A Study to Investigate Weight Management With Bimagrumab (LY3985863) and Tirzepatide (LY3298176), Alone or in Combination, in Adults With Obesity or Overweight
NCT06643728Obesity, Overweight
Eli Lilly and Company
Phase 2
252
Alabama, California, Florida, Hawaii, Illinois, Mississippi, Pennsylvania, Washington
2024-10-21
Recruiting
A Study of Eltrekibart and Mirikizumab in Adult Patients With Moderately to Severely Active Ulcerative Colitis
NCT06598943Ulcerative Colitis, Ulcerative Colitis Chronic
Eli Lilly and Company
Phase 2
143
Arizona, Arkansas, California, Colorado, Connecticut, Florida, Illinois, Louisiana
2024-10-10
Active, closed
A Study to Investigate Weight Management With LY3841136 and Tirzepatide (LY3298176), Alone or in Combination, in Adult Participants With Obesity or Overweight With Type 2 Diabetes
NCT06603571Obesity, Overweight
Eli Lilly and Company
Phase 2
367
Arizona, California, Connecticut, Florida, Idaho, Illinois, Iowa, Kansas
2024-09-20
Recruiting
A Study of LY4050784 in Participants With Advanced or Metastatic Solid Tumors
NCT06561685Metastatic Solid Tumor, Advanced Solid Tumor, Non-small Cell Lung Cancer, SMARCA4-Deficient Tumor
Eli Lilly and Company
Phase 1
340
California, Colorado, Florida, Illinois, Massachusetts, New York, Ohio, Tennessee
2024-09-19
Recruiting
MOONRAY-01, A Study of LY3962673 in Participants With KRAS G12D-Mutant Solid Tumors
NCT06586515Pancreatic Ductal Adenocarcinoma, Non-small Cell Lung Cancer, Colorectal Cancer
Eli Lilly and Company
Phase 1
630
California, Colorado, District of Columbia, Florida, Georgia, Indiana, Massachusetts, Michigan
2024-09-12
Active, closed
A Study of LY3537031 in Overweight, Obese, and Healthy Participants
NCT06606106Overweight, Obesity
Eli Lilly and Company
Phase 1
302
California, Florida, Missouri, Texas
2024-09-05
Recruiting
A Study of LY4052031 in Participants With Advanced or Metastatic Urothelial Cancer or Other Solid Tumors
NCT06465069Metastatic Solid Tumor, Recurrent Solid Tumor, Advanced Solid Tumor, Urinary Bladder Neoplasm
Eli Lilly and Company
Phase 1
420
California, Colorado, Florida, Illinois, Indiana, Massachusetts, Michigan, Missouri
2024-07-01
Recruiting
A Study of Tirzepatide in Adolescents With Obesity and Weight-Related Comorbidities (SURMOUNT-ADOLESCENTS-2)
NCT06439277Obesity, Weight Gain
Eli Lilly and Company
Phase 3
300
California, Delaware, Idaho, Illinois, Indiana, New York, Texas, Utah
2024-06-03
Recruiting
A Study of Sofe-M in Participants With Selected Advanced Solid Tumors
NCT06400472Ovarian Neoplasms, Endometrial Neoplasms, Uterine Cervical Neoplasms, Carcinoma, Non-Small-Cell Lung
Eli Lilly and Company
Phase 1
575
Arizona, California, Georgia, Michigan, New York, Ohio, Texas, Utah
2024-05-20
Active, closed
The Effect of Retatrutide Once Weekly on Cardiovascular Outcomes and Kidney Outcomes in Adults Living With Obesity (TRIUMPH-Outcomes)
NCT06383390Atherosclerotic Cardiovascular Disease (ASCVD), Chronic Kidney Disease (CKD)
Eli Lilly and Company
Phase 3
10,000
Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia
2024-04-30
Recruiting
A Study of Lebrikizumab (LY3650150) in Participants With Chronic Rhinosinusitis and Nasal Polyps Treated With Intranasal Corticosteroids (CONTRAST-NP)
NCT06338995Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)
Eli Lilly and Company
Phase 3
510
Alabama, Arizona, California, Colorado, Florida, Idaho, Illinois, Kansas
2024-04-29
Active, closed
A Study of Lebrikizumab in Adult Participants With Perennial Allergic Rhinitis (PREPARED-1)
NCT06339008Perennial Allergic Rhinitis (PAR)
Eli Lilly and Company
Phase 3
450
California, Colorado, Florida, Illinois, Kentucky, Michigan, Minnesota, Missouri
2024-04-26
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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 23 September 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: 9,112 studies in total at the last sync on 23 Sep 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 150 of those studies with a site in California that also match the filters currently applied.

How many clinical trials are recruiting in California?

78 of the 150 studies on this page are recruiting new participants as of the 23 Sep 2026, 03:16 UTC sync. A further 6 have not yet opened recruitment, 65 are active but closed to new participants, and 1 are enrolling by invitation only. Eligibility for any study is decided by its study team.

Summary by phase

Studies by phase (California), 150 studies
PhaseStudiesRecruitingShare
Phase 3753250%
Phase 2352623.3%
Phase 1291719.3%
Phase 1/2523.3%
Phase 4412.7%
Observational100.7%
Phase 2/3100.7%

Most active sponsors

Lead sponsors with the most studies (California)
Lead sponsorStudiesRecruiting
Eli Lilly and Company15078
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.