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Prostate Cancer MetastaticPhase 1/2CYPIDESNCT03436485

Safety and Pharmacokinetics of ODM-208 in Patients With Metastatic Castration-resistant Prostate Cancer

A Phase 1/2 study testing ODM-208 and Midazolam in people with Prostate Cancer Metastatic, run by Orion Corporation, Orion Pharma at 20 sites in 4 countries.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The purpose of this first-in-man study is to evaluate safety and tolerability of ODM-208 in patients with metastatic castration-resistant prostate cancer. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer Metastatic
What is being tested?
ODM-208 and Midazolam
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
204 participants
Where
20 sitesin 4 countries
Study dates
19 Mar 2018to 31 Oct 2026
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

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
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Main Inclusion Criteria:

  • Written informed consent (IC) obtained.
  • Male aged ≥ 18 years.
  • Histologically confirmed adenocarcinoma of the prostate.
  • Castration resistant prostate cancer with serum testosterone < 50 ng/dl.
  • Metastatic disease.
  • Ongoing androgen deprivation therapy with GnRH analogue or antagonist, or have had bilateral orchiectomy.
  • Received at least one prior line of novel hormonal androgen receptor (AR) targeted therapy (e.g. abiraterone, enzalutamide).
  • ECOG performance status 0-1.
  • Adequate marrow, liver and kidney function.
  • Able to swallow study treatment.
  • Part 1: Treatment with at least 1 line of chemotherapy or ineligibility for chemotherapy. Part 2: Treatment with at least 1 line of taxane-based chemotherapy in castration-sensitive prostate cancer (CSPC) or in CRPC.

Main Exclusion Criteria:

  • History of pituitary or adrenal dysfunction.
  • Known brain metastases or active leptomeningeal disease.
  • Active infection or other medical condition that would make corticosteroid contraindicated.
  • Poorly controlled diabetes.
  • Hypotension or uncontrolled hypertension.
  • Clinically significantly abnormal serum potassium or sodium level.
  • Active or unstable cardio/cerebro-vascular disease including thromboembolic events.
  • Prolonged QTcF interval.

Trial locations and contacts

20 sites in 4 countries.

20 sites in 4 countries

United Kingdom8 sites
  • The Rutherford Cancer Centre, North East

    Bedlington

  • Velindre Cancer Centre

    Cardiff, CF14 2TL

  • The Beatson West of Scotland Cancer Centre

    Glasgow, G12 0YN

  • The Rutherford Cancer Centre, North West

    Liverpool

  • Royal Marsden Hospital

    London, SW3 6JJ

  • Charing Cross Hospital

    London

  • The Christie NHS Foundation Trust

    Manchester

  • Royal Preston Hospital

    Preston, PR2 9HT

Other trials in United Kingdom

France6 sites
  • Institute Bergonié

    Bordeaux

  • Centre Léon Bérard

    Lyon

  • Institute Paoli-Calmettes

    Marseille

  • Institut de cancérologie Strasbourg Europe

    Strasbourg

  • Hopital Foch

    Suresnes, 92150

  • Institut Gustave Roussy

    Villejuif

Other trials in France

United States4 sites
  • University of Maryland Marlene and Stewart Greenebaum Cancer Center

    Baltimore, Maryland, 21201

  • University at Buffalo, Kaleida Health Great Lakes Cancer Care Collaborative

    Buffalo, New York, 14203

  • Masonic Cancer Center, University of Minnesota

    Minneapolis, Minnesota, 55455

  • Nebraska Cancer Specialists

    Omaha, Nebraska, 68114

Other trials in United States

Finland2 sites
  • Helsinki University Central Hospital

    Helsinki

  • Tampere University Hospital

    Tampere

Other trials in Finland

About this study

The purpose of this first-in-man study is to evaluate safety and tolerability of ODM-208 in patients with metastatic castration-resistant prostate cancer.

Read the detailed description

Safety and tolerability profile of ODM-208 will be explored

Being tested
ODM-208, Midazolam

What participants receive

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

  • ODM-208Drug

    co-administered with glucocorticoid and fludrocortisone, orally daily

  • MidazolamDrug

    orally

Study groups in NCT03436485
Study groupRoleWhat they receive
ODM-208 Part 1 Dose escalationExperimentalNot described
Receives: Drug: ODM-208
ODM-208 Part 2 Dose expansionExperimentalNot described
Receives: Drug: ODM-208
ODM-208 Part 2 Drug drug interactionExperimentalNot described
Receives: Drug: ODM-208; Drug: Midazolam

What is being measured

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

  1. Maximum tolerated dose (MTD)

    Highest dose level at which under 33% of patients in a cohort experience DLT

    Measured: Within first 28 days of treatment

Timeline

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

  1. First posted19 Feb 2018
  2. Study start19 Mar 2018
  3. Primary completion31 Oct 2026 (estimated)
  4. Study completion31 Oct 2026 (estimated)

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 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
204 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03436485
Sponsor's protocol ID
3124001
Acronym
CYPIDES
Status last verified
Aug 2026
First submitted
12 Feb 2018
Last updated
14 Aug 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Fizazi K, Bernard-Tessier A, Roubaud G, Utriainen T, Barthelemy P, Flechon A, van der Voet J, Gravis G, Ratta R, Jones R, Parikh O, Tanner M, Antonarakis ES, Baldini C, Peters N, Garratt C, Ikonen T, Pohjanjousi P, Joensuu H, Cook N. Targeted Inhibition of CYP11A1 in Castration-Resistant Prostate Cancer. NEJM Evid. 2024 Jan;3(1):EVIDoa2300171. doi: 10.1056/EVIDoa2300171. Epub 2023 Dec 26.

    PubMed 38320513

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing ODM-208 and Midazolam in people with Prostate Cancer Metastatic, run by Orion Corporation, Orion Pharma at 20 sites in 4 countries.

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

Who may be eligible to take part?

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: under way, not looking for participants, as of the sponsor's last update on 14 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 20 sites in United Kingdom, France, United States, Finland. 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 combined 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.

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?

This study is still under way. Results are not available in the source record yet.

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?

Maximum tolerated dose (MTD) (time frame: Within first 28 days of treatment). 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 NCT03436485, which also lists 1 linked publication.

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 14 Aug 2026.

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