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Clinical trials

Phase 1 trials with unknown status

Search ClinicalTrials.gov registrations by keyword, then narrow by condition, phase, status, country and start year.

Filters: Phase: Phase 1 Status: Unknown status Clear all

4,608 trials match Source: ClinicalTrials.gov registrations

Trials started per year

By phase, 2000 to 2026.

Trials started per year
CategoryTrials
200016
200124
200214
200312
200428
200531
200661
200765
200880
200979
201087
201191
201293
2013113
2014135
2015187
2016240
2017227
2018306
2019373
2020437
2021525
2022551
2023488
2024251
202512

Status

Trials by registry status. Select a bar to filter.

Trials by status
CategoryTrials
Unknown status4,608

Top lead sponsors

A sponsor with a page on Pharma Observatory links to it.

Top lead sponsors
CategoryTrials
Jiangsu HengRui Medicine Co., Ltd.75
Assiut University65
Chia Tai Tianqing Pharmaceutical Group Co., Ltd.64
Peking Union Medical College Hospital62
Cairo University58
Zhejiang University40
Chong Kun Dang Pharmaceutical37
Daewoong Pharmaceutical Co. LTD.35
CSPC ZhongQi Pharmaceutical Technology Co., Ltd.34
Second Affiliated Hospital, Zhejiang University, School of Medicine30

Top conditions

MeSH conditions the trials were registered with, not their broader categories. A condition with a page on Pharma Observatory links to it.

Top conditions
CategoryTrials
Neoplasms100
COVID-1998
Breast Neoplasms95
Carcinoma, Non-Small-Cell Lung88
Recurrence85
Multiple Myeloma79
Colorectal Neoplasms78
Carcinoma, Hepatocellular70
Pancreatic Neoplasms70
Leukemia, Myeloid, Acute59

Trials

Showing 51 to 75 of 4,608. Each trial links to its page on Pharma Observatory.

4,508 more trials match. See them on Pharma Observatory

Recently changed trials

Changes observed in the last 7 days, newest first, site-count changes left out. Source: ClinicalTrials.gov.

No changes to these trials in the last 7 days.

Go deeper on Pharma Observatory

Pharma Observatory connects clinical trials, sponsors, sites and investigators in one searchable platform.