No Treatment

Natural History of and Specimen Banking for People With Tumors of the Central Nervous System

Neurobiology of Language Recovery in Aphasia: Natural History and Treatment-Induced Recovery

A Study to Investigate the Biological Effects of Saruparib (AZD5305), Darolutamide, and in Combination in Men With Newly Diagnosed Prostate Cancer.

A Study to Learn How Paxlovid [Nirmatrelvir-ritonavir/PF-07321332] Works in COVID-19 Patients Who Are Elderly or Have Medical Conditions.

Heated Intraperitoneal Chemotherapy Followed by Niraparib for Ovarian, Primary Peritoneal and Fallopian Tube Cancer

Effect Of Sleep Apnea Treatment On Temporo-Mandibular Disorders

Finding Treatments for COVID-19: A Trial of Antiviral Pharmacodynamics in Early Symptomatic COVID-19 (PLATCOV)

Visual Acoustic Biofeedback for RSE Via Telepractice

Glycyrrhetinic Acid and Acute Irritant Dermatitis

Impact of Liver Transplantation on Sexual Life and Function

Time to Post-operative Recovery of Serum Albumin as a Predictor of Outcome in Major Hepato Pancreato Biliary Surgeries

Woodsmoke Particulate + Hypertonic Saline

Combined Upper-airway and Breathing Control Therapies for Obstructive Sleep Apnea

Impact of Aripiprazole Once Monthly Medications on Changes in Brain Structure and Metabolism

A Long Term Follow-up Study in Participants Treated in a Preceding Phase 2 or 3 Study With a Regimen Containing Odalasvir and AL-335 With or Without Simeprevir for the Treatment of Hepatitis C Virus (HCV) Infection

Sensory Rehabilitation in Chemo Induced Peripheral Neuropathy

Effects of Microcurrent Treatment With and Without Resistance Exercises

SUNOSI® (Solriamfetol) Pregnancy Registry

Rituximab in Treating Patients With Newly Diagnosed Stage II, Stage III, or Stage IV Follicular Non-Hodgkin's Lymphoma

The Assessment of the Use of Anti-Adhesion Agents to Prevent Pelvic Postoperative Adhesions