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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 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

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04980872
Enrollment
60
Registered
2021-07-28
Start date
2021-11-02
Completion date
2030-02-07
Last updated
2025-02-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

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

Keywords

ARQ 092, ArQule, AKT, mTOR, PIK3CA, PROS, Proteus, Overgrowth, Congenital malformations, MOSAIC

Brief 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). 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.

Interventions

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

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Masking description

None (Open-label)

Intervention model description

Multicenter

Eligibility

Sex/Gender
ALL
Age
2 Years to 120 Years
Healthy volunteers
No

Inclusion criteria

* 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

Exclusion criteria

* 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

Design outcomes

Primary

MeasureTime frameDescription
Number of participants experiencing a Serious Adverse Event (SAE)Up to approximately 94 monthsAn 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.
Number of participants discontinuing study treatment due to an Adverse Event (AE)Up to approximately 90 monthsAn 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.

Countries

Australia, Brazil, Italy, United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026