NAD Clinical Trials

59 recruitingLast updated: May 29, 2026

There are 59 actively recruiting nad clinical trials across 23 countries. Studies span Not Applicable, Phase 2, Phase 4, Phase 3, Phase 1. Top locations include Boston, Massachusetts, United States, Bethesda, Maryland, United States, Jacksonville, Florida, United States. Updated daily from ClinicalTrials.gov.


NAD Trials at a Glance

59 actively recruiting trials for nad are listed on ClinicalTrialsFinder across 6 cities in 23 countries. The largest study group is Not Applicable with 19 trials, with the heaviest enrollment activity in Boston, Bethesda, and Jacksonville. Lead sponsors running nad studies include Stephanie B. Seminara, MD, National Institute of Environmental Health Sciences (NIEHS), and Aarhus University Hospital.

Browse nad trials by phase

Treatments under study

About NAD Clinical Trials

Looking for clinical trials for NAD? There are currently 1 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new NAD trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about NAD clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 59 trials

Recruiting
Not Applicable

Comparing Three Rescue Bowel Preparation Regimens for Colonoscopy After Failed Cleansing

Bowel Cleansing for ColonoscopyInadequate Bowel Preparation
Ospedale San Pio220 enrolled1 locationNCT07557173
Recruiting
Phase 1

A Phase 1 Study of BGB-B2033, Alone or in Combination With Tislelizumab With or Without Bevacizumab, in Participants With Advanced or Metastatic Solid Tumors

Metastatic Hepatocellular CarcinomaLocal Advanced Hepatocellular CarcinomaAlpha-fetoprotein (AFP)-Producing Gastric Cancer+2 more
BeOne Medicines392 enrolled29 locationsNCT06427941
Recruiting

Inherited Reproductive Disorders

InfertilityHypogonadismAmenorrhea+1 more
National Institute of Environmental Health Sciences (NIEHS)850 enrolled2 locationsNCT01500447
Recruiting
Phase 3

Active Surveillance, Bleomycin, Etoposide, Carboplatin or Cisplatin in Treating Pediatric and Adult Patients With Germ Cell Tumors

Germ Cell TumorChildhood Extracranial Germ Cell TumorExtragonadal Embryonal Carcinoma+27 more
Children's Oncology Group1,780 enrolled629 locationsNCT03067181
Recruiting
Phase 2

Testosterone Treatment in Men With Chronic Kidney Disease

Hypogonadism, MaleKidney Disease, Chronic
St. Louis University20 enrolled1 locationNCT05249634
Recruiting

MEHMO Natural History and Biomarkers

ObesityEpilepsyHypogonadisms+3 more
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)150 enrolled1 locationNCT06019182
Recruiting

Male Experiences With Intra Cytoplasmic Sperm Injection (ICSI) and Reduced Sperm Quality

Quality of LifeHypogonadismSocial Interaction+3 more
Peter Humaidan400 enrolled1 locationNCT07546435
Recruiting
Phase 2

Pain Alleviation With Testosterone in Opioid-Induced Hypogonadism

PainOpioid UseHypogonadism, Male
Brigham and Women's Hospital150 enrolled1 locationNCT04798469
Recruiting
Phase 2

Improving Cancer-related Fatigue, Sexual Dysfunction and Quality of Life in Older Men With Cancer and Androgen Deficiency

CancerFatigueHypogonadism, Male
Seattle Institute for Biomedical and Clinical Research230 enrolled3 locationsNCT04301765
Recruiting
Not Applicable

Mobile Video Directly Observed Therapy (DOT) for Immunosuppression Medication Adherence in Adolescent Heart Transplant Recipients

heart transplant rejectionPatient EngagementHealth Behavior+4 more
University of Florida100 enrolled4 locationsNCT05732779
Recruiting
Phase 3

52 Week Study + 24-Month Long-Term Extension of Safety, PK, & Efficacy of XYOSTED® for Testosterone Replacement in Male Adolescents With Hypogonadism

Hypogonadism, Male
Halozyme Therapeutics100 enrolled20 locationsNCT06689085
Recruiting
Not Applicable

REMS25: Study on the Use of REMS Technology in Diseases Commonly Associated With Reduced Bone Mineral Density (BMD)

NeoplasiaOsteoporosisObesity, Overweight+6 more
Meyer Children's Hospital IRCCS100 enrolled1 locationNCT07412782
Recruiting

rFSH vs rFSH+rLH in Dydrogesterone-Based Progestin Protocol: A Prospective Study

Invitro FertilizationGonadotropins
Centrum Clinic IVF Center300 enrolled2 locationsNCT07348757
Recruiting
Not Applicable

EndoPAT Device for Endothelial Dysfunction in ED

Hypogonadism, MaleErectile DysfunctionEndothelial Dysfunction
University of California, Irvine120 enrolled1 locationNCT06720597
Recruiting
Not Applicable

Nighttime Synchrony of Your Nutrition and Circadian Health

Circadian misalignmentSleepCircadian Rhythm+8 more
University of Utah120 enrolled1 locationNCT07329283
Recruiting
Phase 2

Kisspeptin Administration Subcutaneously to Patients With Hypothalamic Amenorrhea

Hypogonadotropic HypogonadismHypothalamic Amenorrhea
Stephanie B. Seminara, MD20 enrolled1 locationNCT07224438
Recruiting

Observation of Environment and Reproductive-Endocrine Effects

HypogonadismPrecocious PubertyAmenorrhea+2 more
National Institute of Environmental Health Sciences (NIEHS)300 enrolled1 locationNCT06280807
Recruiting

Perception of Hormonal Replacement Therapy Among Patients Aged 11 to 17 Years

Female Hypogonadism
University Hospital, Strasbourg, France20 enrolled1 locationNCT07315932
Recruiting
Not Applicable

Cardiac point-of Care Ultrasound Training Pathway for Emergency Department Advanced Practice Providers

Pulmonary Embolism (Diagnosis)Diagnostic ImagingImplementation Science+7 more
Duke University75 enrolled1 locationNCT07159269
Recruiting

The REgistry of Very Early Estrogen and AnovuLation

Hypothalamic AmenorrheaHypothalamic Amenorrhea, FunctionalFunctional Hypogonadotropic Hypogonadism
Mayo Clinic100,000 enrolled2 locationsNCT06583408