Vitamin c

Iron-Deficiency Anemia

Phase 4 · Completed · 3 trials

Pneumonia

Phase 4 · Recruiting · 3 trials

Acute kidney injury

Phase 4 · Status unknown · 2 trials

Chronic Renal Insufficiency

Phase 4 · Results posted · 2 trials

Colonoscopy

Phase 4 · Completed · 2 trials

Complex Regional Pain Syndromes

Phase 4 · Completed · 2 trials

Fatigue

Phase 4 · Status unknown · 2 trials

Human Influenza

Phase 4 · Results posted · 2 trials

Pain

Phase 4 · Terminated · 2 trials

Wounds and Injuries

Phase 4 · Completed · 2 trials

Male infertility

Phase 4 · Active, not recruiting · 1 trial

Prehypertension

Phase 4 · Results posted · 1 trial

Renal insufficiency

Phase 4 · Completed · 1 trial

Type 1 diabetes

Phase 4 · Completed · 1 trial

Neoplasm

Phase 3 · Completed · 8 trials

Colorectal neoplasm

Phase 3 · Completed · 7 trials

Coronavirus Infections

Phase 3 · Completed · 6 trials

Heart disease

Phase 3 · Completed · 4 trials

Obesity

Phase 3 · Completed · 4 trials

Pre-eclampsia

Phase 3 · Results posted · 4 trials

Anemia

Phase 3 · Results posted · 3 trials

Diabetes mellitus

Phase 3 · Completed · 3 trials

Attention Deficit Disorder with Hyperactivity

Phase 3 · Completed · 2 trials

Chronic Kidney Failure

Phase 3 · Status unknown · 2 trials

Colonic Neoplasms

Phase 3 · Completed · 2 trials

Coronary artery disease

Phase 3 · Completed · 2 trials

Coronary Disease

Phase 3 · Completed · 2 trials

Fragile X Syndrome

Phase 3 · Completed · 2 trials

Impulsive Behavior

Phase 3 · Completed · 2 trials

Myocardial ischemia

Phase 3 · Completed · 2 trials

Restless Legs Syndrome

Phase 3 · Status unknown · 2 trials

Stomach neoplasm

Phase 3 · Status unknown · 2 trials

Vascular disease

Phase 3 · Completed · 2 trials

Cataract

Phase 3 · Status unknown · 1 trial

NCT00227682 · Terminated · Multiple myeloma

Terminated early due to funding suspension by grant sponsor.

NCT00184054 · Terminated · Leukemia, Myeloid, Acute

Competing studies

NCT02516670 · Terminated · Prostatic Neoplasms

insufficient clinical response per DSMB

NCT05501548 · Terminated · Prostatic Neoplasms

The study was terminated by the IRB due to low accrual,

NCT06068543 · Suspended · Frailty

The study has been suspended by the IRB pending review of a study-related issue

NCT02791906 · Terminated · Heart failure

lack of funding

NCT03468075 · Terminated · Sarcoma

Stopping rules met

NCT00626444 · Terminated · non-Hodgkin lymphoma

Slow accrual

NCT03334409 · Terminated · Renal cell carcinoma

Due to loss of funding from the private foundation source

NCT04264533 · Terminated · Viral pneumonia

the study was started in the second half of the outbreak, and the number of qualifying COVID-19 patients decreased with the control of the epidemic so that we had to stop our trial before reaching the predefined sample size.

NCT01550510 · Terminated · Gastrointestinal disease

Closed: low enrollment, many treatment options available for Colorectal Cancer

NCT02762331 · Terminated · Atrial fibrillation

Therapy shown effective by larger studies

NCT01014546 · Terminated · Essential thrombocythemia

low accrual

NCT00491751 · Terminated · Peripheral arterial disease

Insufficient enrollment

NCT04001647 · Terminated · Aneurysm

IRB approval has been withdrawn

NCT03228238 · Terminated

The study was terminated early due to slow recruitment and the Principal Investigator's retirement.

NCT03889158 · Terminated

COVID-19