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Cushing SyndromePhase 2NCT03053271

A Study of ATR-101 for the Treatment of Endogenous Cushing's Syndrome

A Phase 2 study testing ATR-101 in people with Cushing Syndrome, run by Millendo Therapeutics US, Inc. at 4 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a Phase 2 multicenter, randomized, double-blind, placebo controlled study of ATR-101 to evaluate the efficacy and safety of orally-administered ATR-101 in adults with endogenous Cushing's syndrome. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Cushing Syndrome
What is being tested?
ATR-101
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
4 participants
Where
4 sitesin 2 countries
Study dates
13 Apr 2017to 12 Aug 2019
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Confirmed diagnosis of endogenous Cushing's syndrome
  • Baseline UFC 1.3 to 10 × upper limit of normal (ULN)
  • If previous pituitary surgery, participants must be at least 3 months since surgery at the time of screening
  • BMI between 18 and 60 kg/m2, inclusive

Who cannot join

  • Pseudo-Cushing's syndrome, cyclic Cushing's syndrome or current iatrogenic Cushing's syndrome
  • Candidates for surgical treatment of Cushing's syndrome, unless surgery is not anticipated to occur during the study
  • Normal late night salivary cortisol or 24-hr urine free cortisol
  • Radiotherapy of the pituitary within 6 months

Trial locations and contacts

4 sites in 2 countries.

4 sites in 2 countries

United States3 sites
  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

  • The Cleveland Clinic Foundation

    Cleveland, Ohio, 44195

  • Medical College of Wisconsin

    Milwaukee, Wisconsin, 53051

Other trials in United States

United Kingdom1 site
  • The James Cook University Hospital

    Middlesbrough, TS4 3 BW

Other trials in United Kingdom

About this study

Official title: A Phase 2 Randomized, Double-Blind, Placebo-Controlled Study of ATR-101 for the Treatment of Cushing's Syndrome

This is a Phase 2 multicenter, randomized, double-blind, placebo controlled study of ATR-101 to evaluate the efficacy and safety of orally-administered ATR-101 in adults with endogenous Cushing's syndrome. Following wash-out (if needed), all eligible subjects will enter an open-label intra-subject dose-escalation period of 8 weeks' duration, followed either by a double-blind randomized withdrawal period of 4 weeks' duration (if the subject meets randomization criteria) or by an additional open label dosing period of 4 weeks' duration (if the subject does not meet randomization criteria).It is anticipated that the overall duration of the study per subject will range from approximately 16-22 weeks.

Being tested
ATR-101, Placebo
Keywords
Endogenous Cushing's Syndrome, ATR-101, CS
Medical subject headings
Cushing Syndrome

What participants receive

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

  • ATR-101Drug

    Also called nevanimibe HCl

    During the 4-week randomized withdrawal period, subjects will be dosed for 4 weeks at the same dose level being used at the completion of the open-label dose-escalation period.

  • PlaceboDrug

    During the 4-week randomized withdrawal period, subjects will be dosed for 4 weeks with placebo that matches the same ATR-101 dose level being used at the completion of the open-label dose-escalation period.

Study groups in NCT03053271
Study groupRoleWhat they receive
ATR-101ExperimentalDuring the 4-week randomized withdrawal period, eligible subjects will receive ATR-101 at the same dose level being used at the completion of the open-label dose-escalation period.
Receives: Drug: ATR-101
PlaceboPlacebo comparatorDuring the 4-week randomized withdrawal period, eligible subjects will receive a placebo that matches the same ATR-101 dose level being used at the completion of the open-label dose-escalation period.
Receives: Drug: Placebo

What is being measured

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

  1. The Proportion of Subjects With Either a Normal 24-hr Urinary Free Cortisol (UFC) or a Reduction in 24-hr UFC of ≥ 50% Relative to Their Baseline Value

    The number of subjects meeting the criterion was divided by the total number of subjects.

    Measured: Through Day 85

Secondary outcomes (4)
  1. The Proportion of Subjects With a Normal 24-hr UFC

    The number of subjects meeting the criterion was divided by the total number of subjects.

    Measured: Through Day 85

  2. The Proportion of Subjects With a Reduction in 24-hr UFC of ≥ 50% Relative to Their Baseline Value

    The number of subjects meeting the criterion was divided by the total number of subjects.

    Measured: Through Day 85

  3. The Proportion of Subjects With a Normal 24-hr UFC

    The number of subjects meeting the criterion was divided by the total number of subjects.

    Measured: Through Day 57 and Day 85

  4. The Proportion of Subjects With a Reduction in 24-hr UFC of ≥ 50% Relative to Their Baseline Value

    The number of subjects meeting the criterion was divided by the total number of subjects.

    Measured: Through Day 57 and Day 85

Timeline

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

  1. First posted15 Feb 2017
  2. Study start13 Apr 2017
  3. Primary completion17 Jun 2019
  4. Study completion12 Aug 2019

Why it stopped: Slow 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
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03053271
Sponsor's protocol ID
ATR-101-301
Status last verified
Feb 2021
First submitted
6 Feb 2017
Last updated
2 Mar 2021
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing ATR-101 in people with Cushing Syndrome, run by Millendo Therapeutics US, Inc. at 4 sites in 2 countries.

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 4 inclusion and 4 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: stopped early, as of the sponsor's last update on 2 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States, United Kingdom. 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. Some participants in this study may receive a placebo. 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?

Yes. Results are posted in the registry (first posted 2 Mar 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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 Proportion of Subjects With Either a Normal 24-hr Urinary Free Cortisol (UFC) or a Reduction in 24-hr UFC of ≥ 50% Relative to Their Baseline Value (time frame: Through Day 85). 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 2 Mar 2021.

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