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21-hydroxylase DeficiencyPhase 1NCT01495910

A Study Examining Doses of Abiraterone Acetate in Adult Women With 21-Hydroxylase Deficiency

A Phase 1 study testing Abiraterone acetate in people with 21-hydroxylase Deficiency, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C. at 3 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine the minimum dose of abiraterone acetate needed to decrease serum androstenedione to age-appropriate levels in premenopausal women on steroid replacement for classic 21-hydroxylase deficiency. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
21-hydroxylase Deficiency
What is being tested?
Abiraterone acetate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
6 participants
Where
3 sitesUnited States
Study dates
Dec 2011to Feb 2013
Phase
Phase 1
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
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Premenopausal women >=18 years of age.
  • Must be receiving a hormonal contraceptive agent containing both estrogen and progesterone.
  • Confirmed 21-hydroxylase deficiency by CYP21A2 genotype associated with classic congenital adrenal hyperplasia.
  • Demonstrates a >=1.5 X ULN of morning serum androstenedione concentration while taking study-defined doses of hydrocortisone and fludrocortisone.
  • No coexisting medical conditions in the opinion of the investigator that would preclude participation in the study.

Who cannot join

  • Current or history of active or chronic hepatitis, including symptomatic viral hepatitis A, B, or C.
  • Any active infection.
  • Evidence of active malignancy.
  • Serious or uncontrolled co-existent non-malignant disease.
  • Receiving systemic glucocorticoids for any reason other than for the treatment of 21-hydroxylase deficiency.
  • Any disorders that require treatment with anticonvulsants.
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  • Patients of child-bearing potential who are not willing to use a method of birth control during the study and for 3 months after the end-of-study.
  • Women who are pregnant or breast-feeding.
  • Genotypes associated with non-classic congenital adrenal hyperplasia.

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Study site

    Ann Arbor, Michigan

  • Study site

    Chicago, Illinois

  • Study site

    Dallas, Texas

Other trials in United States

About this study

Official title: An Open-Label, Multiple-Dose, Dose-Finding Study of Abiraterone Acetate in Adult Women With 21-Hydroxylase Deficiency

The purpose of this study is to determine the minimum dose of abiraterone acetate needed to decrease serum androstenedione to age-appropriate levels in premenopausal women on steroid replacement for classic 21-hydroxylase deficiency.

Read the detailed description

This is a non-randomized (patients will not be assigned by chance to study treatments), open-label (patients will know the identity of study treatments), multiple-dose, intra-patient sequential dose-escalation study with a planned enrollment of approximately 10 patients. This study will consist of a screening period and a treatment period. Due to the intra-patient dose escalation, there will be multiple treatment periods consisting of 8 days each. A rest period of at least 7 days will separate each treatment period. Eligible patients will take study-defined replacement doses of hydrocortisone and fludrocortisone. Abiraterone acetate oral suspension will be administered in daily escalating doses from 100 mg to 500 mg. Patients will proceed to the next higher dose level when the majority of the treated patients have a reduction in the androstenedione level. Serial pharmacokinetic (study of what the body does to a drug) and pharmacodynamic (study of the effects of a drug on the body) samples will be collected at each treatment period as detailed in the protocol. All patients who receive at least 1 dose of abiraterone acetate will be analyzed for safety.

Being tested
Abiraterone acetate
Keywords
21-hydroxylase deficiency, Androstenedione, Abiraterone acetate, Pharmacokinetics, Pharmacodynamics, Dose-finding
Medical subject headings
Congenital adrenal hyperplasia due to 21 hydroxylase deficiency

What participants receive

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

  • Abiraterone acetateDrug

    Abiraterone acetate oral suspension administered daily from study Day 1 to study Day 6 of each treatment period: the first dose level is 100 mg with escalating doses of 250 mg and 500 mg in subsequent treatment periods.

Study groups in NCT01495910
Study groupRoleWhat they receive
Abiraterone acetateExperimentalAbiraterone acetate oral suspension administered daily from study Day 1 to study Day 6 of each treatment period: the first dose level is 100 mg with escalating doses of 250 mg and 500 mg in subsequent treatment periods.
Receives: Drug: Abiraterone acetate

What is being measured

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

  1. The minimum dose of abiraterone acetate required to decrease serum androstenedione to the age-appropriate range for adult women with 21-hydroxylase deficiency

    Normalization or reduction of age-appropriate androstenedione levels will be determined by the mean of the androstenedione values measured on Study Days 6 and 7 of the treatment period.

    Measured: Up to Day 7 of each treatment period.

Secondary outcomes (12)
  1. Mean serum concentrations of androstenedione

    Measured: Up to Day 8 of each treatment period.

  2. Mean serum concentrations of 17-hydroxyprogesterone

    Measured: Up to Day 8 of each treatment period.

  3. Mean plasma concentrations of renin activity

    Measured: Up to Day 8 of each treatment period.

  4. Mean serum concentrations of testosterone

    Measured: Up to Day 8 of each treatment period.

  5. Urine concentrations of androsterone

    Measured: Up to Day 8 of each treatment period.

  6. Urine concentrations of etiocholanolone

    Measured: Up to Day 8 of each treatment period.

  7. Maximum plasma concentration (Cmax) of abiraterone

    Measured: Up to Day 8 of each treatment period.

  8. Time to reach the maximum plasma concentration (tmax) of abiraterone

    Measured: Up to Day 8 of each treatment period.

  9. Area under the plasma concentration-time curve from time 0 to 24 hours postdose (AUC24) of abiraterone

    Measured: Up to Day 8 of each treatment period.

  10. Area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration (AUClast) of abiraterone

    Measured: Up to Day 8 of each treatment period.

  11. Time to last quantifiable plasma concentration (Tlast) of abiraterone

    Measured: Up to Day 8 of each treatment period.

  12. Elimination half-life associated with the terminal slope of the semilogarithmic drug concentration-time curve of abiraterone

    Measured: Up to Day 8 of each treatment period.

Timeline

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

  1. First posted20 Dec 2011 (estimated)
  2. Study startDec 2011
  3. Primary completionFeb 2013
  4. Study completionFeb 2013

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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01495910
Sponsor's protocol ID
CR100007
Other IDs
212082HPL1002
Status last verified
Feb 2014
First submitted
23 Nov 2011
Last updated
28 Feb 2014
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Abiraterone acetate in people with 21-hydroxylase Deficiency, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C. at 3 sites 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 5 inclusion and 9 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: finished, as of the sponsor's last update on 28 Feb 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

The minimum dose of abiraterone acetate required to decrease serum androstenedione to the age-appropriate range for adult women with 21-hydroxylase deficiency (time frame: Up to Day 7 of each treatment period.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 28 Feb 2014.

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