Updated May 2026 · ClinicalTrials.gov
Leiden University Medical Center
12 clinical trials · 12 recruiting · OTHER
Leiden University Medical Center has 12 clinical trials registered on ClinicalTrials.gov, with 12 actively recruiting participants. The trials listed below cover 20 conditions across the phases listed in the sidebar. Always discuss any specific trial with your physician before contacting a study site.
About Leiden University Medical Center\'s Trial Portfolio
Leiden University Medical Center is a non-industry sponsor (academic medical center, hospital, foundation, or research network). Non-industry sponsors often investigate novel approaches, rare conditions, and behavioral or surgical interventions that commercial sponsors may not prioritize.
12 of Leiden University Medical Center's 12 registered trials are currently recruiting — roughly 100% of the portfolio. A high recruiting share usually points to an active research pipeline with multiple programs at the enrollment stage.
Leiden University Medical Center's research footprint spans Myasthenia Gravis (2 trials), Fatigue (2), and breast-cancer-patients (1) as the top three conditions. The full condition list, sorted by trial count, is in the sidebar.
is the largest single phase in Leiden University Medical Center's portfolio at 58% of registered trials. The full phase breakdown appears in the sidebar.
Trials by Leiden University Medical Center
The 4D PICTURE Project: Evaluating Metro Mapping As a Method to Support Shared Decision Making in Oncology
The goal of this observational study is to evaluate the impact of MetroMapping (a service design methodology) on Shared Decision Making in cancer care paths. The goal is to...
EMDR for Fear of Cancer Recurrence in Patients with Familial Melanoma: a Waiting List Control Trial
High fear of cancer recurrence (FCR) impacts patient's quality of life (QoL) and is prevalent among patients with familial melanoma. The main objective is to investigate whether...
Vascular Signature Mapping of Brain Tumor Genotypes
A glioma is a primary brain tumor in adults that is characterized by a highly variable, but overall poor survival. The optimal timing of treatment is in part determined by the...
NEO- and Adjuvant Targeted Therapy in Braf-mutated Anaplastic Cancer of the Thyroid (NEO-ATACT Study)
Anaplastic thyroid cancer (ATC) is an almost invariable lethal cancer in humans. Most patients present with a rapid progressive mass in the neck with progressive complaints like...
inDividual, Targeted thrombosIS Prophylaxis Versus the Standard 'One Size Fits All' Approach in Patients Undergoing...
After hip or knee replacement all patients receive a standardized treatment with blood thinners, this medication is called thrombosis prophylaxis. However, despite this standard...
The Bipolar Lithium Imaging Scan Study.
The main goal of this study is to determine if brain lithium-concentrations predict clinical lithium treatment-response. Secondary, to study correlations between intracerebral...
Interventions Against Fatigue in Patients With Myasthenia Gravis
A prospective assessor-blinded randomized clinical trial investigating the effect of aerobic exercise therapy or cognitive behavioural therapy on fatigue in patients with...
Capturing Key MG-symptoms Using Smartphone Recordings.
This study will make use of a cross-sectional design of MG patients and non-MG participants to quantitatively assess key MG symptoms, and to explore the applicability of machine...
Early-access Avacopan in Real-world ANCA-associated Vasculitis
The current study proposal aims to investigate the clinical practice variation of the initial use of avacopan for AAV patients in Europe. The study will describe patient...
'Improving Urinary Tract Infection Diagnosis in Older Patients: Validation of a Biomarker Panel (UTI-GOLD)'
The goal of this study is to improve the diagnosis of urinary tract infections (UTI) in older people (≥65 years). The main research questions are: Research questions * What is...
REPLACE: The Impact of Catheter Replacement in Patients With Catheter-associated Urinary Tract Infection
With this project the investigators aim to address the following question: "Is it beneficial to change bladder catheters during urinary tract infections?" There is debate...
International Cardiac Amyloidosis Registry
Cardiac amyloidosis is a relatively rare disease. However, with the newer imaging techniques that have become available to us in recent years, determining the diagnosis is...
How to Approach a Trial Listing
Each trial card above links to a dedicated page with the official ClinicalTrials.gov data plus a plain-English translation of the eligibility criteria. We translate technical terminology (ECOG performance status, hepatic function values, exclusionary lab thresholds) into language that a patient or caregiver can understand, but the original clinical text and the live ClinicalTrials.gov record always govern any actual eligibility decision.
Before contacting a trial site, write down questions for your treating physician using the framework on our 25 Questions guide. Discuss whether the trial fits your treatment plan, what the time commitment looks like, and whether your insurance will cover the standard-of-care portions. Trials are not a substitute for a treatment plan — they are an addition that needs medical guidance to evaluate.
Authoritative Resources
Verify any trial registration directly on ClinicalTrials.gov. For background on the FDA approval pathway that Phase 3 trials feed into, see the FDA drug approval process. For cancer-specific trial guidance, the National Cancer Institute publishes patient-oriented overviews. For global trial registrations beyond the U.S., the WHO ICTRP aggregates registries from around the world.
Frequently Asked Questions
How many clinical trials does Leiden University Medical Center have on ClinicalTrials.gov?
Leiden University Medical Center has 12 clinical trials registered on the federal ClinicalTrials.gov registry, of which 12 are actively recruiting participants right now. These counts come directly from the ClinicalTrials.gov API and are updated as the registry changes.
What conditions does Leiden University Medical Center study?
Leiden University Medical Center's registered trials cover 20 conditions on ClinicalTrials.gov, led by Myasthenia Gravis (2 trials), Fatigue (2 trials), breast-cancer-patients (1 trial), melanoma-cancer (1 trial), Prostate Cancer (1 trial). The complete condition list appears in the sidebar of this page; each condition links to a page listing every recruiting trial in that area, regardless of sponsor.
How do I join a Leiden University Medical Center clinical trial?
Joining a clinical trial is a medical decision that should always involve your treating physician. Each trial page on this site includes the eligibility criteria translated into plain English alongside the official clinical text, plus the contact information that the sponsor has registered with ClinicalTrials.gov. Bring the trial information to your doctor before reaching out — they can review the full inclusion and exclusion criteria against your medical history and help you decide whether to pursue screening.
What does the trial phase mean?
Phase 1 trials test safety and dosing in small groups (often 20–80 healthy volunteers or patients). Phase 2 trials evaluate efficacy and side effects in larger groups (100–300 patients with the target condition). Phase 3 trials confirm efficacy and monitor safety in the largest groups (300–3,000+ patients) and form the basis of an FDA approval submission. Phase 4 studies happen after a treatment is approved, monitoring long-term safety and effectiveness in real-world use. Some trials register without a phase — common for device, behavioral, or observational studies.
Where does this trial data come from?
All trial data is pulled directly from the ClinicalTrials.gov API v2, the official federal trial registry maintained by the National Library of Medicine at NIH. Under FDAAA 801, most U.S. drug and device trials are required to register, making ClinicalTrials.gov the most comprehensive source. Sponsors are responsible for keeping their listings current; trial status can shift between data refreshes.
How This Sponsor Page Is Built
Every count on this page is derived directly from ClinicalTrials.gov API v2 records. Trial counts include all trials currently registered to this sponsor; the recruiting count reflects trials with status "Recruiting" or equivalent. Plain-English eligibility translations on each linked trial page preserve the original clinical text alongside an accessible version. Read the full methodology for the data pipeline and limitations.
Source: ClinicalTrials.gov API v2, maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. Data: ClinicalTrials.gov."
Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.
Last updated 2026-05-08 · 12 trials tracked for Leiden University Medical Center.
The this entity record above pulls directly from the NIH ClinicalTrials.gov registry. What follows is the per-entity context — how this entity sits in the broader U.S. clinical trials and research registries distribution and which underlying factors drive the headline numbers.
The methodology behind every numeric value on this page is publicly documented on the the NIH ClinicalTrials.gov registry portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within active and historical clinical trials with similar size, similar exposure, or similar geography — not the national-level summary alone.