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PIK3CA-Related Overgrowth Spectrum (PROS)/Proteus Syndrome (PS)Phase 2NCT04980872

A Study of the Safety and Tolerability in Participants With PIK3CA-related Overgrowth Spectrum or Proteus Syndrome Who Are Being Treated With Miransertib (MK-7075) in Other Studies (MK-7075-006)

A Phase 2 study testing Miransertib in people with PIK3CA-Related Overgrowth Spectrum (PROS)/Proteus Syndrome (PS), run by Merck Sharp & Dohme LLC at 11 sites in 5 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

This is a study of the safety and tolerability of oral miransertib (MK-7075) administered to participants at least 2 years of age with phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA)-related overgrowth spectrum (PROS) or Proteus Syndrome (PS). Read more about this study

Who is it for?
Ages 2 to 120 years
What is being tested?
Miransertib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
11 sitesin 5 countries
Study dates
2 Nov 2021to 7 Feb 2030
Phase
Phase 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 2 to 120 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Has PROS or PS and has been screened in Study MK-7075-002 (or has been approved by the Sponsor to screen for MK-7075-002) or is currently being treated with miransertib as part of Study MK-7075-002 (NCT03094832) or ArQule's CU/EAP (NCT03317366)
  • For males, agrees to be abstinent from heterosexual intercourse or use contraception unless confirmed to be azoospermic during the study period and for ≥90 days after the last dose of study intervention
  • For females, is not pregnant or breastfeeding, and is either not a participant of childbearing potential (POCBP) or is a POCBP and is abstinent or uses a highly effective method of contraception

Who cannot join

  • Has previously discontinued miransertib due to related SAEs or other intolerance of miransertib
  • Has received other investigational agents, if any, that were administered between leaving Study MK-7075-02 or ArQule's CU/EAP and entering this trial
  • Is receiving systemic inhibitors of the mechanistic target of rapamycin (mTOR) pathway (eg, sirolimus, everolimus)
  • Is receiving immunosuppressive therapies
  • Is receiving continuous high dose steroids

Trial locations and contacts

11 sites in 5 countries.

11 sites in 5 countries

United States5 sites
  • Children's Healthcare of Atlanta - Egleston Hospital ( Site 0107)

    Atlanta, Georgia, 30322

  • Boston Children's Hospital ( Site 0089)

    Boston, Massachusetts, 02115

  • Cincinnati Children's Hospital Medical Center-Hematology ( Site 0102)

    Cincinnati, Ohio, 45229

  • Texas Children's Hospital ( Site 0104)

    Houston, Texas, 77030

  • Seattle Children's Hospital ( Site 0103)

    Seattle, Washington, 98105

Other trials in United States

Australia2 sites
  • Bundaberg Base Hospital ( Site 0202)

    Bundaberg, Queensland, 4670

  • John Hunter Hospital ( Site 0203)

    Newcastle, New South Wales, 2305

Other trials in Australia

Italy2 sites
  • Fondazione Policlinico Universitario Agostino Gemelli ( Site 0052)

    Rome, Lazio, 00168

  • Ospedale Pediatrico Bambino Gesù-Centro Trials ( Site 0087)

    Rome, Roma, 00165

Other trials in Italy

Brazil1 site
  • Hospital Araújo Jorge ( Site 0801)

    Goiânia, Goiás, 74605070

Other trials in Brazil

United Kingdom1 site
  • Great Ormond Street Hospital ( Site 0701)

    London, London, City of, WC1N 3JH

Other trials in United Kingdom

About this study

Official title: A Multicenter, Open-label, Phase 2, Extension Trial to Study the Long-term Safety in Participants With PROS or Proteus Syndrome Who Are Currently Being Treated With Miransertib in Other Studies

This is a study of the safety and tolerability of oral miransertib (MK-7075) administered to participants at least 2 years of age with phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA)-related overgrowth spectrum (PROS) or Proteus Syndrome (PS). This is an extension of other miransertib studies (MK-7075-002 [NCT03094832] or ArQule CU/EAP [NCT03317366]), and may also enroll participants who are approved for MK-7075-002 but have not yet started miransertib therapy.

Being tested
Miransertib
Keywords
ARQ 092, ArQule, AKT, mTOR, PIK3CA, PROS, Proteus, Overgrowth, Congenital malformations, MOSAIC
Medical subject headings
Hereditary Sensory and Autonomic Neuropathies, Proteus Infections, Congenital Abnormalities

What participants receive

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

  • MiransertibDrug

    Also called MK-7075, ARQ 092

    Miransertib capsules administered orally either 1 hour before or 2 hours after a meal.

Study groups in NCT04980872
Study groupRoleWhat they receive
MiransertibExperimentalParticipants with either PROS or PS receive miransertib orally once daily between 5 and 35 mg/m^2 based on prior approved dosing for up to 96 cycles. A cycle is 28 days long.
Receives: Drug: Miransertib

What is being measured

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

  1. Number of participants experiencing a Serious Adverse Event (SAE)

    An SAE is defined as any untoward medical occurrence associated with the use of a drug in a participant, whether or not considered drug related. An SAE can therefore be any such event that results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalizations, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is considered by the investigator to be an important medical event.

    Measured: Up to approximately 94 months

  2. Number of participants discontinuing study treatment due to an Adverse Event (AE)

    An AE is defined as any untoward medical occurrence associated with the use of a drug in a participant, whether or not considered drug related. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product and does not imply any judgment about causality.

    Measured: Up to approximately 90 months

Timeline

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

  1. First posted28 Jul 2021
  2. Study start2 Nov 2021
  3. Primary completion7 Feb 2030 (estimated)
  4. Study completion7 Feb 2030 (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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
Multicenter
Masking
None (open label)
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04980872
Sponsor's protocol ID
7075-006
Other IDs
MK-7075-006, 2022-500689-87-00, 2021-001369-19
Status last verified
Feb 2025
First submitted
23 Jul 2021
Last updated
7 Feb 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Miransertib in people with PIK3CA-Related Overgrowth Spectrum (PROS)/Proteus Syndrome (PS), run by Merck Sharp & Dohme LLC at 11 sites in 5 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 3 inclusion and 5 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: under way, not looking for participants, as of the sponsor's last update on 7 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in United States, Australia, Italy, Brazil, 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. 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?

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?

Number of participants experiencing a Serious Adverse Event (SAE) (time frame: Up to approximately 94 months). The study lists 2 primary outcomes in all. 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 7 Feb 2025.

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