2026 data ClinicalTrials.gov official source

Conditions: B

Compiled by PlainTrial Editorial, Clinical Trial Intelligence Editorial Team · January 1, 2026

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

1,103 conditions starting with "B"

Showing 901–950 of 1,103

Condition	Trials	Recruiting
Breakthrough Bleeding	3	-
Breakthrough Pain	1	-
Breakthrough Spotting	1	-
Breast	6	3
Breast - Female	2	-
Breast - Male	1	-
Breast Adenocarcinoma	19	6
Breast Atypical Ductal Hyperplasia	3	3
Breast Atypical Hyperplasia	2	2
Breast Atypical Lobular Hyperplasia	3	3
Breast Augmentation	3	-
Breast Biopsy	1	1
Breast Cancer	1,251	423
Breast Cancer (HR+HER2-)	1	-
Breast Cancer - Infiltrating Ductal Carcinoma	1	1
Breast Cancer and Pregnancy	1	1
Breast Cancer Awareness	2	2
Breast Cancer Detection	3	1
Breast Cancer Diagnosis	2	2
Breast Cancer Early Stage Breast Cancer (Stage 1-3)	1	1
Breast Cancer Female	47	22
Breast Cancer in Situ	1	-
Breast Cancer in Women With a Strong Family History	1	-
Breast Cancer in Young Women	1	-
Breast Cancer Invasive	5	4
Breast Cancer Lymphedema	3	1
Breast Cancer Metastatic	18	11
Breast Cancer Metastatic Breast Cancer	1	1
Breast Cancer Non-invasive Breast Cancer	1	1
Breast Cancer Prevention	2	2
Breast Cancer Radiation	1	-
Breast Cancer Recurrent	3	3
Breast Cancer Risk	5	2
Breast Cancer Screening	9	4
Breast Cancer Screening and Diagnosis	1	1
Breast Cancer Stage	2	-
Breast Cancer Stage 0	3	1
Breast Cancer Stage I	19	9
Breast Cancer Stage II	23	11
Breast Cancer Stage IIB	1	-
Breast Cancer Stage III	22	10
Breast Cancer Stage IIIA	1	1
Breast Cancer Stage IV	11	6
Breast Cancer Surgery	2	1
Breast Cancer Survivor	6	3
Breast Cancer Survivors	9	3
Breast Cancer Survivorship	4	3
Breast Cancer Triple Negative	1	1
Breast Cancer, Breast Neoplasms	1	-
Breast Cancer, Early Breast Cancer	2	2

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