2026 data ClinicalTrials.gov official source

Conditions: R

Compiled by PlainTrial · January 1, 2026

Every condition beginning with R that has a registered US clinical trial, with how many studies cover each.

1,691 conditions starting with "R"

Showing 1,651–1,691 of 1,691

Condition	Trials	Recruiting
Rotator Cuff Tendinosis	3	2
Rotavirus Gastroenteritis	1	-
Rotavirus Infections	1	-
Round Cell Liposarcoma	1	1
Round Cell Sarcoma With EWSR1-non-ETS Fusion	2	1
Roux en Y Gastric Bypass Surgery	1	-
Roux-en-y Anastomosis Site	2	1
Roux-en-Y Gastric Bypass	3	-
RP (Retinitis Pigmentosa)	1	-
RP1	1	-
RP11	1	-
RRMS	1	-
RSV	4	3
RSV Immunization	1	1
RSV Infection	9	3
RSV Infections	1	-
rTMS	1	1
rTMS Stimulation	1	1
RTT	2	2
Rubella	3	-
Rubella Immunisation	1	-
Rubinstein-Taybi Syndrome	1	1
Rumination	8	5
Rumination Disorder	1	-
Rumination Syndrome	1	-
RUNX1 Familial Platelet Disorder	1	1
Rupture of Amniotic Membranes	1	-
Rupture of Anterior Cruciate Ligament	3	-
Rupture of Membranes; Delayed Delivery (Following Spontaneous Rupture)	1	1
Rupture of Membranes; Premature	1	1
Rupture of Membranes; Premature, Affecting Fetus	1	1
Ruptured Aneurysm	1	-
Ruptured Brain Arteriovenous Malformation	1	1
Ruptured Cerebral Aneurysm	1	-
Rural Health	10	10
Rural Health Services	1	-
RV - Right Ventricular Abnormality	2	1
RVCL - Retinal Vasculopathy Cerebral Leukoencephalopathy	1	-
RVOT Anomaly	3	-
Ryanodine Receptor 1 Related Disorders	1	1
Ryanodine Receptor 1-Related Myopathy	1	1

Data sourced from official public datasets. See our methodology for details.