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Cushing's DiseasePhase 2NCT04339751

Effect of Vorinostat on ACTH Producing Pituitary Adenomas in Cushing s Disease

A Phase 2 study testing Vorinostat in people with Cushing's Disease, run by National Institute of Neurological Disorders and Stroke (NINDS) at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

Background: Cushing s disease is caused by excess ACTH hormone release by a benign tumor of the pituitary gland. It can lead to decreased quality of life and early death. The current best treatment for Cushing s disease is surgery. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Cushing's Disease
What is being tested?
Vorinostat
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteUnited States
Study dates
11 Apr 2025to 11 Apr 2025
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • In order to be eligible to participate in this study, an individual must meet all of the following criteria:
  • Adult patients (18 years and older)
  • Confirmed biochemical diagnosis of Cushing s disease (primary or recurrent) as evidenced by increased 24-hour urine free cortisol (UFC), normal or increased morning plasma Adrenocorticotropic Hormone (ACTH), and pituitary origin of excess ACTH.
  • Surgical candidate for resection of ACTH producing pituitary adenoma
  • Enrolled in 03-N-0164, Evaluation of Neurosurgical Disorders.
  • Able to provide written informed consent at the time of study enrollment.
  • Participants who are physically able to become pregnant must use an effective form of birth control from 14 days prior to enrollment through 6 months following the last dose of vorinostat. Participants who are able to father a child must use an effective form of birth control from Day 0 through 3 months following the last dose of vorinostat.

Who cannot join

  • Patients who have been previously treated with vorinostat.
  • Patients who have received sellar radiation.
  • Significant medical illnesses that in the investigator s opinion cannot be adequately controlled or would compromise the patient s ability to tolerate this vorinostat.
  • Any history of cancer, unless in complete remission and off of all therapy for that disease for a minimum of 3 years.
  • History of thromboembolic disorder or deep vein thrombosis
  • Presence of abnormal hematological and biochemical parameters, (such as anemia or thrombocytopenia) as defined as:
Show all 22Show fewer
  • Neutrophil count < 1.5 K//micro L
  • Hemoglobin < 8.0 g/dL.
  • Hematocrit < 0.75x LLN (lower limit of normal)
  • RBC count < 0.75x LLN
  • Platelet count < 100 x 10^3 cells/micro L.
  • Prothrombin time-international normalized ratio (PT-INR) > 1.5x ULN or Activated partial thromboplastin time (aPTT) > 1.5x ULN, with the exception of patients on prophylactic anticoagulation therapy
  • Serum bilirubin level > 1.5x ULN.
  • Active infection being currently treated with systemic antibiotics.
  • Serious concurrent medical illness including renal failure (creatinine >3.0x - 6.0x ULN) liver failure (ALT/AST >5.0x - 20.0x ULN) or severe cardio-respiratory disease.
  • Pregnancy or lactation.
  • Presence of any disease that will obscure toxicity or dangerously alter drug metabolism (such as uncontrolled diabetes or bleeding disorders)
  • Currently receiving other investigational agents.
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to vorinostat, such as valproate.
  • Currently taking another HDACi, such as valproate.
  • Currently taking coumadin or its derivative anticoagulants.
  • Currently taking any other medication to reduce cortisol or ACTH levels

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Official title: The Effect of Vorinostat on ACTH Producing Pituitary Adenomas in Cushing's Disease

Background:

Cushing s disease is caused by excess ACTH hormone release by a benign tumor of the pituitary gland. It can lead to decreased quality of life and early death. The current best treatment for Cushing s disease is surgery. If surgery does not work or if the tumor returns, there are no more good treatment options. Vorinostat, which is approved to treat a type of lymphoma, might be a treatment option.

Read more

Objective:

To test vorinostat to see if it can kill tumor cells and change the number of hormones released in people with Cushing s disease.

Eligibility:

People ages 18 and older who have Cushing s disease and are scheduled for surgery under protocol 03-N-0164 to remove a tumor in their pituitary gland

Design:

Participants will be screened under protocol 03-N-0164.

Participants will stay in the hospital for 8 days before their surgery.

On the first day, participants will have a physical exam and blood tests. They will have their urine collected for testing all day. They will have an ECG: For this, small metal disks or sticky electrode pads will be placed on their chest to record heart activity.

For the next 7 days, participants will have blood tests and all-day urine collection. They will drink at least 2 liters of fluid per day. They will take the study drug by mouth each morning.

On the eighth day, participants will have their surgery. Leftover tissue will be collected for research.

On the day they are discharged from the hospital, participants will have a physical exam and blood tests.

Read the detailed description

Study Description

This is a single center, prospective pilot study of effectiveness of vorinostat to reduce midnight ACTH levels in patients with Cushing s Disease. Surgery for resection of ACTH producing pituitary adenoma will be offered at the NIH under another protocol (03-N-0164) as part of standard clinical care. Eligible subjects will be admitted to the Clinical Center for one week prior to surgery, during which time oral vorinostat will be administered daily.

Objectives

Cushing s disease is caused by excess ACTH hormone release by a benign tumor of the pituitary gland. The resulting increase in cortisol levels caused by increased ACTH causes a severe condition that leads to decreased quality of life and early death. The current best first treatment for Cushing s disease is surgery. However, if surgery is unsuccessful or if the tumor returns, there are no good treatment options for patients. In laboratory studies, we discovered that a previously FDA approved oral medication Vorinostat was able to kill tumors cells and reduce ACTH secretion. We want to test whether this drug can be used in patients with Cushing s disease to reduce ACTH levels.

Primary Objective: to determine whether vorinostat reduces midnight plasma ACTH level

Secondary Objectives: to evaluate the effect of vorinostat on urine cortisol levels

Endpoints

Primary Endpoint: midnight plasma ACTH level on the last day of drug administration. Secondary Endpoints: serum cortisol change during drug administration.

Being tested
Vorinostat
Keywords
SAHA, CD
Medical subject headings
Pituitary ACTH Hypersecretion

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04339751
Study groupRoleWhat they receive
single center, prospective pilot studyExperimentaleffectiveness of vorinostat to reduce midnight ACTH levels in patients with Cushing s Disease
Receives: Drug: Vorinostat

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Midnight Plasma ACTH

    Relative change in midnight plasma ACTH. Dichotomized relative change using 20% as a cutoff (which is considered as clinical important): relative change >20% for reduction and relative change <=20% for no change).

    Measured: Day -1, Day 0-1, Day 2, Day 4-6, Discharge

Secondary outcomes (1)
  1. Urinary Free Cortisol

    Relative change in 24-hour urinary free cortisol during 7 day administration of Vorinostat

    Measured: Day -1, Day 0-1, Day 2, Day 4-6, Discharge

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Apr 2020
  2. Study start11 Apr 2025
  3. Primary completion11 Apr 2025
  4. Study completion11 Apr 2025

Why it stopped: Lack of enrollment.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04339751
Sponsor's protocol ID
200019
Other IDs
20-N-0019
Status last verified
Apr 2025
First submitted
8 Apr 2020
Last updated
15 Apr 2025
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided: We do plan to share IPD. we will share all IPD that results in a publication on a public repository, as required by most journals. the data will be de-identified and anonymized.

Publications

  • Arnaldi G, Angeli A, Atkinson AB, Bertagna X, Cavagnini F, Chrousos GP, Fava GA, Findling JW, Gaillard RC, Grossman AB, Kola B, Lacroix A, Mancini T, Mantero F, Newell-Price J, Nieman LK, Sonino N, Vance ML, Giustina A, Boscaro M. Diagnosis and complications of Cushing's syndrome: a consensus statement. J Clin Endocrinol Metab. 2003 Dec;88(12):5593-602. doi: 10.1210/jc.2003-030871.

    PubMed 14671138
  • Cushing H. The basophil adenomas of the pituitary body and their clinical manifestations (pituitary basophilism). 1932. Obes Res. 1994 Sep;2(5):486-508. doi: 10.1002/j.1550-8528.1994.tb00097.x. No abstract available.

    PubMed 16353601
  • Newell-Price J, Bertagna X, Grossman AB, Nieman LK. Cushing's syndrome. Lancet. 2006 May 13;367(9522):1605-17. doi: 10.1016/S0140-6736(06)68699-6.

    PubMed 16698415

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Vorinostat in people with Cushing's Disease, run by National Institute of Neurological Disorders and Stroke (NINDS) at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 15 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Midnight Plasma ACTH (time frame: Day -1, Day 0-1, Day 2, Day 4-6, Discharge). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04339751, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Apr 2025.

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