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Treatment of Cushing's Disease With R-roscovitine

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02160730
Recruitment Status : Terminated (NIH grant ended.)
First Posted : June 11, 2014
Last Update Posted : December 2, 2019
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Information provided by (Responsible Party):
Shlomo Melmed, MD, Cedars-Sinai Medical Center

Brief Summary:
The investigators hypothesize that R-roscovitine will suppress pituitary corticotroph tumor ACTH production and normalize urinary free cortisol levels in patients with Cushing disease. To date, R-roscovitine has been evaluated in several Phase I and II studies and has shown early signs of anti-cancer activity in approximately 240 patients.

Condition or disease Intervention/treatment Phase
Cushings Disease Drug: R-roscovitine Phase 2

Detailed Description:
To date, R-roscovitine (seliciclib) has been evaluated in several Phase I and II studies and has shown early signs of anti-cancer activity in approximately 240 patients. Studies included a Phase I study in which single agent seliciclib was administered to patients with advanced non-small cell lung cancer (NSCLC) and two Phase IIa studies in which seliciclib was administered in combination with gemcitabine and cisplatin as first-line treatment and with docetaxel as second-line treatment in NSCLC. Seliciclib was also evaluated in a Phase I study in patients with nasopharyngeal cancer (NPC) with evidence of tumor shrinkage and concomitant reduction in copy counts of the EBV virus that is causally associated with the pathogenesis of NPC. Results from APPRAISE, a randomized discontinuation, double-blinded, placebo-controlled, Phase IIb study of oral seliciclib capsules as a monotherapy in heavily pretreated patients with NSCLC, demonstrated no difference between the seliciclib and placebo arms in progression free survival but a substantial increase in overall survival was observed (388 versus 218 days respectively (Cyclacel Pharmaceuticals press release Dec 21, 2010). Here, the investigators propose an exploratory, proof of concept clinical trial to determine if seliciclib can safely normalize urinary free cortisol levels by reducing pituitary corticotroph tumor ACTH production in patients with Cushing disease.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 7 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Treatment of Pituitary Cushing Disease With a Selective CDK Inhibitor, R-roscovitine
Study Start Date : May 2014
Actual Primary Completion Date : October 2018
Actual Study Completion Date : October 2018

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: R-roscovitine
• R-roscovitine 400 mg oral administration twice daily for 4 days every week for total of 4 weeks.
Drug: R-roscovitine
See Arm Description
Other Names:
  • Seliciclib
  • CYC202

Primary Outcome Measures :
  1. Number of participants with a normalized 24 hour urinary free cortisol after 4 weeks [ Time Frame: 4 weeks ]
    To evaluate the efficacy of R-roscovitine 400 mg oral administration twice daily for 4 days every week for total of 4 weeks on normalizing 24 hour urinary free cortisol (24 h UFC) levels in CD patients.

Secondary Outcome Measures :
  1. Change in levels of pituitary hormones [ Time Frame: Baseline, Week 4 ]
    • Pituitary Panel (TSH,FT4, FT3, PRL, IGF-1, FSH, Testosterone Total, Free Testosterone, Estradial, SHBG)

  2. Number of Participants with Adverse Events as a Measure of Safety and Tolerability [ Time Frame: 4 weeks ]
  3. Changes in tumor size [ Time Frame: 4 weeks ]
  4. Changes in clinical signs [ Time Frame: Baseline, Week 4 ]
    • A urinary free cortisol level above the upper limit of the normal range but reduced by ≥50% from baseline at week 4

  5. Change in levels metabolic abnormality [ Time Frame: Baseline, Week 4 ]
    • Hemoglobin A1C (HbA1C), fasting blood glucose and blood electrolytes, e.g. K+

  6. Changes in clinical signs [ Time Frame: 4 weeks ]
    • Plasma ACTH, 24 hour urinary free cortisol, serum and salivary cortisol levels over time

  7. Change in clinical symptoms [ Time Frame: 4 weeks ]
    • Cushing's syndrome clinical signs and symptoms, e.g. weight, body mass index, blood pressure

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion criteria:

  • Male and female patients at least 18 years old
  • Patients with confirmed pituitary origin of excess adrenocorticotropic hormone (ACTH) production:

    • Persistent hypercortisolemia established by two consecutive 24 h UFC levels at least 1.5x the upper limit of normal
    • Normal or elevated ACTH levels
    • Pituitary macroadenoma (>1 cm) on MRI OR
    • Inferior Petrosal Sinus Sampling (IPSS) central to peripheral ACTH gradient >2 at baseline and >3 after CRH stimulation
    • Recurrent or persistent Cushing disease is defined as pathologically confirmed resected pituitary ACTH-secreting tumor, and 24 hour UFC above the upper limit of normal reference range beyond post-surgical week 6
    • Patients on medical treatment for Cushing's disease the following washout periods must be completed before screening assessments are performed:
    • Inhibitors of steroidogenesis (metyrapone, ketoconazole): 2 weeks
    • Somatostatin analogs (pasireotide): 2 weeks
    • Progesterone receptor antagonist (mifepristone): 2 weeks
    • Dopamine agonists (cabergoline): 4 weeks
    • CYP3A4 strong inducers or inhibitors: varies between drugs; minimum 5-6 times the half-life of drug

Exclusion criteria:

  • Patients with compromised visual fields, and not stable for at least 6 months
  • Patients with abutment or compression of the optic chiasm on MRI and normal visual fields
  • Patients with Cushing's syndrome due to non-pituitary ACTH secretion
  • Patients with hypercortisolism secondary to adrenal tumors or nodular (primary) bilateral adrenal hyperplasia
  • Patients who have a known inherited syndrome as the cause for hormone over secretion (i.e. Carney Complex, McCune-Albright syndrome, MEN-1)
  • Patients with a diagnosis of glucocorticoid-remedial aldosteronism (GRA)
  • Patients with cyclic Cushing's syndrome defined by any measurement of UFC over the previous 1 months within normal range
  • Patients with pseudo-Cushing's syndrome, i.e. non-autonomous hypercortisolism due to overactivation of the HPA axis in uncontrolled depression, anxiety, obsessive compulsive disorder, morbid obesity, alcoholism, and uncontrolled diabetes mellitus
  • Patients who have undergone major surgery within 1 month prior to screening
  • Patients with serum K+< 3.5 while on replacement treatment
  • Diabetic patients whose blood glucose is poorly controlled as evidenced by HbA1C >8%
  • Patients who have clinically significant impairment in cardiovascular function or are at risk thereof, as evidenced by

    - Congestive heart failure (NYHA Class III or IV), unstable angina, sustained ventricular tachycardia, clinically significant bradycardia, high grade AV block, history of acute MI less than one year prior to study entry

  • Patients with liver disease or history of liver disease such as cirrhosis, chronic active hepatitis B and C, or chronic persistent hepatitis, or patients with ALT or AST more than 1.5 x ULN, serum total bilirubin more than ULN, serum albumin less than 0.67 x LLN at screening
  • Serum creatinine > 2 x ULN
  • Patients not biochemically euthyroid
  • Patients who have any current or prior medical condition that can interfere with the conduct of the study or the evaluation of its results, such as

    • History of immunocompromise, including a positive HIV test result (Elisa and Western blot). An HIV test will not be required, however, previous medical history will be reviewed
    • Presence of active or suspected acute or chronic uncontrolled infection
    • History of, or current alcohol misuse/abuse in the 12 month period prior to screening
  • Female patients who are pregnant or lactating, or are of childbearing potential and not practicing a medically acceptable method of birth control. If a woman is participating in the trial then one form of contraception is sufficient (pill or diaphragm) and the partner should use a condom. If oral contraception is used in addition to condoms, the patient must have been practicing this method for at least two months prior to screening and must agree to continue the oral contraceptive throughout the course of the study and for 3 months after the study has ended. Male patients who are sexually active are required to use condoms during the study and for three month afterwards as a precautionary measure (available data do not suggest any increased reproductive risk with the study drugs)
  • Patients who have participated in any clinical investigation with an investigational drug within 1 month prior to screening or patients who have previously been treated with seliciclib
  • Patients with any ongoing or likely to require additional concomitant medical treatment to seliciclib for the tumor
  • Patients with concomitant treatment of strong CYP3A4 inducers or inhibitors.
  • Patients who were receiving mitotane and/or long-acting somatostatin analogs (octreotide LAR or lanreotide)
  • Patients who were receiving pasireotide or ketoconazole before study entry must complete a 2 week washout period prior to receiving seliciclib
  • Patients who have received pituitary irradiation within the last 5 years prior to the baseline visit
  • Patients who have been treated with radionuclide at any time prior to study entry
  • Patients with known hypersensitivity to seliciclib
  • Patients with a history of non-compliance to medical regimens or who are considered potentially unreliable or will be unable to complete the entire study
  • Patients with presence of Hepatitis B surface antigen (HbsAg)
  • Patients with presence of Hepatitis C antibody test (anti-HCV)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02160730

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United States, California
Cedars-Sinai Medical Center
Los Angeles, California, United States, 90048
Sponsors and Collaborators
Shlomo Melmed, MD
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
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Principal Investigator: Shlomo Melmed, MD Cedars-Sinai Medical Center
Study Director: Ning-Ai Liu, MD, PhD Cedars-Sinai Medical Center
Melmed S. Pathogenesis of pituitary tumors. Nature reviews Endocrinology. 2011;7(5):257-66. Epub 2011/03/23. doi: 10.1038/nrendo.2011.40. PubMed PMID: 21423242.
Siegel-Lakhai Wea. ASCO Proceedings, Abs 2060. 2005.
Yeo et al. J Clin Oncol 2009 27-15s (Suppl abstr 6026).

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Responsible Party: Shlomo Melmed, MD, Sr. Vice President of Academic Affairs, Cedars-Sinai Medical Center Identifier: NCT02160730    
Other Study ID Numbers: Pro35720
1R21DK103198-01 ( U.S. NIH Grant/Contract )
First Posted: June 11, 2014    Key Record Dates
Last Update Posted: December 2, 2019
Last Verified: September 2019
Keywords provided by Shlomo Melmed, MD, Cedars-Sinai Medical Center:
Cushings disease
Additional relevant MeSH terms:
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ACTH-Secreting Pituitary Adenoma
Pituitary ACTH Hypersecretion
Pituitary Diseases
Hypothalamic Diseases
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Endocrine System Diseases
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Pituitary Neoplasms
Endocrine Gland Neoplasms
Neoplasms by Site
Antineoplastic Agents
Antiviral Agents
Anti-Infective Agents
Protein Kinase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action