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Niemann-Pick Disease, Type C1Phase 1NCT03893071

Open-Label Study of Long-Term Safety and Efficacy of Intravenous Trappsol Cyclo (HPβCD) in Niemann-Pick Disease Type C

A Phase 1 study testing Hydroxypropyl-β-cyclodextrin in people with Niemann-Pick Disease, Type C1, run by Cyclo Therapeutics, Inc. at 1 site in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The purpose of this study is to provide continued access to treatment for NPC-1 after participation and completion of the Phase I trial CTD-TCNPC-101, when administered at doses of 1500 mg/kg and 2500 mg/kg by slow IV infusion over a period of 8 to 9 hours every two weeks. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Niemann-Pick Disease, Type C1
What is being tested?
Hydroxypropyl-β-cyclodextrin
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited States
Study dates
23 May 2019to Mar 2022
Phase
Phase 1
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Completion of study CTD-TCNPC-101 with no safety concerns at the final visit
  • Negative urine pregnancy test for females of child bearing potential
  • Patients must be legally resident in the USA with access to healthcare
  • Written, informed consent

Who cannot join

  • Inability to comply with the proposed protocol assessments or any uncertainty about their ability to give meaningful, informed consent (legal guardian may give consent with subject assent)
  • Concurrent medical conditions representing a contraindication to any of the study medications
  • Grade 3 renal impairment or worse as indicated by estimated Glomerular filtration rate (eGFR) < 60mL/min/1.73m2
  • Clinical evidence of acute liver disease including symptoms of jaundice or right upper quadrant pain or International Normalised Ratio (INR) >1.8
  • Male patients and female patients of childbearing potential who are not willing to use appropriate birth control (i.e. double barrier birth control) from enrollment until the follow-up visit

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UCSF Benioff Children's Hospital Oakland

    Oakland, California, 94609

Other trials in United States

About this study

Official title: An Open-Label Extension Study of the Long-Term Safety and Efficacy of Intravenous Trappsol® Cyclo (HP-β-CD) in Patients With Niemann-Pick Disease Type C (NPC-1)

The purpose of this study is to provide continued access to treatment for NPC-1 after participation and completion of the Phase I trial CTD-TCNPC-101, when administered at doses of 1500 mg/kg and 2500 mg/kg by slow IV infusion over a period of 8 to 9 hours every two weeks.

Read the detailed description

This is an open-label extension study of intravenous HP-β-CD (administered as Trappsol® Cyclo(TM)) in patients with NPC-1 to evaluate long-term safety and efficacy by providing continued access to treatment following completion of study CTD-TCNPC-101. Patients will receive medication at their home or local site under the supervision of a home nurse professional or at the parent site under the supervision of the site principal investigator. Patients will visit the parent site for safety and efficacy evaluations after receiving treatment for 3 months in the extension protocol.

Thereafter, visits to the parent site will be every 6 months until cessation. The study will continue until Trappsol® Cyclo (TM) becomes commercially available or study/site/patient discontinuation. All patients who complete study CTD-TCNCP-101 and pass the screening criteria will be eligible for this study. The study will be directed from parent site in the US. Vital signs, AEs Adverse Events (AEs) and concomitant meds will be recorded by the home nurse professional or deputy at the local site and reported immediately to the parent site for entry into the Electronic Data Capture (EDC) and reporting to the sponsor.

For logistical reasons home infusions will be permitted as long as AEs, infusion details and concomitants medications are reported directly to the parent site by an authorised deputy according to local guidelines. A Safety Review Committee (SRC) consisting of an independent advisor, the medical monitor, and the principal investigator will be established to review AEs and laboratory data throughout the study.

Being tested
Hydroxypropyl-β-cyclodextrin
Medical subject headings
Niemann-Pick Disease, Type C

What participants receive

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

  • Hydroxypropyl-β-cyclodextrinDrug

    Also called Hydroxypropyl-β-cyclodextrin (HP-β-CD), Trappsol® Cyclo

    HP-β-CD will be administered as Trappsol® Cyclo 25% (250mg/mL) by slow intravenous infusion over a period of 8 up to 9 hours.

Study groups in NCT03893071
Study groupRoleWhat they receive
Hydroxypropyl-β-cyclodextrin IVExperimentalHydroxypropyl-β-cyclodextrin will be administered as Trappsol® Cyclo 25% (250mg/mL) by slow intravenous infusion over a period of 8 up to 9 hours.
Receives: Drug: Hydroxypropyl-β-cyclodextrin

What is being measured

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

  1. Adverse events (AEs): Frequency, severity, time to onset, duration, and relatedness to study product

    Adverse events (AEs): Frequency, severity, time to onset, duration, and relatedness to study product

    Measured: 1-104 weeks

  2. Serious adverse events (SAEs): Frequency, severity, time to onset, duration and relatedness to study product

    Serious adverse events (SAEs): Frequency, severity, time to onset, duration and relatedness to study product

    Measured: 1-104 weeks

  3. Number of discontinuations due to AEs: Patient Discontinuation, Study Treatment Discontinuation, Study and Site Discontinuation

    Discontinuation, Study and Site Discontinuation

    Measured: 1-104 weeks

  4. Auditory capacity will be measured by behavioral auditory assessment

    Auditory capacity will be measured by behavioral auditory assessment

    Measured: 1-104 weeks

Secondary outcomes (1)
  1. Change from baseline in total score as well as individual National Institute of Health (NIH) Niemann-Pick Disease Type C (NPC) Severity Scale (NCSS)

    Change from baseline in total score as well as individual National Institute of Health (NIH) Niemann-Pick Disease Type C (NPC) Severity Scale (NCSS)

    Measured: 1-104 weeks

Timeline

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

  1. First posted28 Mar 2019
  2. Study start23 May 2019
  3. Primary completionMar 2022 (estimated)
  4. Study completionMar 2022 (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
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03893071
Sponsor's protocol ID
CTD-TCNPC-102
Status last verified
Feb 2021
First submitted
20 Feb 2019
Last updated
18 Jun 2021
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Hastings C, Liu B, Hurst B, Cox GF, Hrynkow S. Intravenous 2-hydroxypropyl-beta-cyclodextrin (Trappsol(R) Cyclo) demonstrates biological activity and impacts cholesterol metabolism in the central nervous system and peripheral tissues in adult subjects with Niemann-Pick Disease Type C1: Results of a phase 1 trial. Mol Genet Metab. 2022 Dec;137(4):309-319. doi: 10.1016/j.ymgme.2022.10.004. Epub 2022 Oct 17.

    PubMed 36279795

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Hydroxypropyl-β-cyclodextrin in people with Niemann-Pick Disease, Type C1, run by Cyclo Therapeutics, Inc. at 1 site 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 4 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: status not confirmed, as of the sponsor's last update on 18 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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. 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 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.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

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?

Adverse events (AEs): Frequency, severity, time to onset, duration, and relatedness to study product (time frame: 1-104 weeks). The study lists 4 primary outcomes in all. 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 NCT03893071, 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 18 Jun 2021.

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