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PTEN Gene MutationPhase 1/2NCT06080165

Sirolimus for Improving Social Abilities in People With PTEN Germline Mutations

A Phase 1/2 study testing Sirolimus in people with PTEN Gene Mutation and PTEN Hamartoma Tumor Syndrome, run by Stanford University at 3 sites in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The goal of this study is to examine the safety and treatment effects of sirolimus for targeting social communication deficits in people with genetic disorders associated with PTEN germline mutations, which are often referred to as PTEN Harmartoma Tumor Syndrome (PHTS). Read more about this study

Who is it for?
Ages 5 to 45 years
What is being tested?
Sirolimus
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
0 participants
Where
3 sitesUnited States
Study dates
Jul 2024to Jun 2028
Phase
Phase 1/2
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 5 to 45 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Inclusion Criteria: All participants will meet the following selection criteria:
  • Male or female outpatients between 5.00 and 45.99 years of age
  • PHTS confirmed by genetic testing;
  • Fluent in English
  • at least moderate severity of social skill deficits based on a social responsiveness scale t score ≥ 60
  • Stable psychotropic and anti-epileptic medications for at least 4 weeks with the exception of fluoxetine which should be stable for at least 8 weeks
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  • Adequate Liver function (SGOT, SGPT, TBili, Alk Phos all<3x normal); HCT>27%; WBC > 3.0, ANC >1,500, and platelets >100,000
  • adequate renal function with a GFR ≥ 50 ml/min/m2 as determined by the Schwartz Formula for children and MDRD for adults (www.nkdep.nih.gov/professionals/gfr_calculators/index)
  • Negative urine pregnancy test for females and no plans to become pregnant or conceive a child while participating in the study. The effects of mTOR inhibitors on the developing fetus at the doses used in this study are unknown. For this reason, women of child-bearing potential and men must agree to use adequate contraception prior to study entry and for the duration of the study. Because of the possibility of drug interactions and the potential effect of female hormones on the growth of kidney angiomyolipomas and lymphangioleiomyomatosis, estrogen-containing oral contraceptives are not recommended in women enrolled in this study, so an effective non-estrogen or barrier method of contraception must be used.
  • Medically stable with no active medical problems such as unstable seizures or cardiovascular disease or cancer that is not in remission as evidenced by medical history; -No anticipated changes in frequency and intensity of existing interventions such as behavioral and developmental treatments, in home services, or speech therapy;
  • No planned changes in school placement in children and adolescents;
  • Availability of reliable transportation to attend clinic visits;
  • availability of a trustworthy informant who interacts with subject on a regular basis;
  • Ability to participate in the testing procedures to the extent that valid standard scores and biological samples can be obtained.

Who cannot join

  • Participants will be excluded if one of the following is met:
  • Significant medical illness, such as endocrinopathies, cardiovascular disease, or severe chronic malnutrition;
  • Pregnancy, planned pregnancy, or unwillingness to use adequate contraception;
  • Planned changes to concomitant medications;
  • Concomitant therapy, or prior use within 3 months of the baseline visit, with an agent with known or possible anti-mTOR activity or concomitant therapy with strong inhibitors (e.g., cyclosporine and ketoconazole) or inducers of CYP3A;
  • Active infection at time of enrollment;
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  • Participation in a clinical trial in the 30 days prior to study entry;
  • Major surgery, radiation therapy or stereotactic radio-surgery within previous 4 weeks at time of enrollment; and
  • Neurosurgery within prior 6 months at time of enrollment.

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Boston Children's Hospital

    Boston, Massachusetts, 02115

  • Cleveland Clinic

    Cleveland, Ohio, 44195

  • Stanford University

    Stanford, California, 94305

Other trials in United States

About this study

Official title: A Randomized Controlled Double-Blind Trial of Sirolimus for Improving Social Abilities in People With PTEN Germline Mutations

The goal of this study is to examine the safety and treatment effects of sirolimus for targeting social communication deficits in people with genetic disorders associated with PTEN germline mutations, which are often referred to as PTEN Harmartoma Tumor Syndrome (PHTS). The mechanism of sirolimus in the body has shown promise for helping to improve social communication skills in case reports of people with PHTS. Everolimus, a closely related compound, also showed benefits in social communication skills in a previous pilot trial in people with PHTS. This is a 6 month double-blind trial followed by at 6 month open label extension trial.

Being tested
Sirolimus, Placebo
Keywords
Sirolimus, Rapamune
Medical subject headings
Hamartoma Syndrome, Multiple

What participants receive

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

  • SirolimusDrug

    Also called Rapamune

    Experimental: Sirolimus Participants that are 5 to 12.99 years old will start at 1 mg/m2/dose. Participants that are 13 to 45.99 years old and < 39.99 kg in weight will also start on 1 mg/day. Participants that are 13 to 45.99 years old and > 40 kg in weight will start on 2 mg/day. The target blood level will be 5-15 ng/ml with dose adjustment based on clinical labs of sirolimus levels. The target blood level will be 5-15 ng/ml with dose adjustment based on sirolimus levels obtained every 2 to 3 weeks after every dose change.

  • PlaceboDrug

    matching placebo

Study groups in NCT06080165
Study groupRoleWhat they receive
SirolimusExperimentalParticipants that are 5 to 12.99 years old will start at 1 mg/m2/dose. Participants that are 13 to 45.99 years old and < 39.99 kg in weight will also start on 1 mg/day. Participants that are 13 to 45.99 years old and > 40 kg in weight will start on 2 mg/day. The target blood level will be 5-15 ng/ml with dose adjustment based on sirolimus levels obtained every 2 to 3 weeks after every dose change.
Receives: Drug: Sirolimus
PlaceboPlacebo comparatormatching placebo
Receives: Drug: Placebo

What is being measured

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

  1. Change from baseline in parent rated Social Responsiveness Scale, Second Edition Total Scores (SRS-2) total scores during treatment.

    Measured: Month 1, Month 2, Month 3, Month 4, Month 5, Month 6

Secondary outcomes (2)
  1. Clinical Global Impression Improvement (CGI-I) Scale changes during treatment.

    Measured: Month 1, Month 2, Month 3, Month 4, Month 5, Month 6

  2. Change from baseline on parent rated Stanford Social Dimensions Scale (SSDS)

    Measured: Month 1, Month 2, Month 3, Month 4, Month 5, Month 6

Timeline

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

  1. First posted12 Oct 2023
  2. Study startJul 2024 (estimated)
  3. Primary completionJun 2028 (estimated)
  4. Study completionJun 2028 (estimated)

Why it stopped: Investigator decided not to proceed with the trial.

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
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06080165
Sponsor's protocol ID
IRB-72157
Status last verified
Jul 2024
First submitted
29 Sep 2023
Last updated
10 Jul 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Data will be on the National Institute of Mental Health Data Archive (NDA).

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Sirolimus in people with PTEN Gene Mutation and PTEN Hamartoma Tumor Syndrome, run by Stanford University 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 14 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: withdrawn, as of the sponsor's last update on 10 Jul 2024. 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. 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 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?

The study was withdrawn before enrolling participants, so there are no results.

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?

Change from baseline in parent rated Social Responsiveness Scale, Second Edition Total Scores (SRS-2) total scores during treatment. (time frame: Month 1, Month 2, Month 3, Month 4, Month 5, Month 6). 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 10 Jul 2024.

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