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Parkinson's DiseasePhase 1NCT02486432

A Single Period Investigation to Assess the Tolerability of Healthy Subjects to Oral Sinemet® (Levodopa/Carbidopa)

A Phase 1 study testing Levodopa/Carbidopa (Sinemet) in people with Parkinson's Disease, run by NeuroDerm Ltd..

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A Single Period Investigation to Assess the Tolerability of Healthy Subjects to Oral Sinemet® (Levodopa/Carbidopa) Doses Administered Using a Divided Dose Approach Read more about this study

Who is it for?
Ages 40 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Parkinson's Disease
What is being tested?
Levodopa/Carbidopa (Sinemet)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
6 participants
Where
No sites listed yet
Study dates
Apr 2015to Apr 2015
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 40 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Healthy males or non-pregnant, non-lactating healthy females
  • Age 40 to 65 years of age
  • Body mass index of 18.0 to 35.0 kg/m2 or, if outside the range, considered not clinically significant by the investigator
  • Must be willing and able to communicate and participate in the whole study
  • Must provide written informed consent
  • Must agree to use an adequate method of contraception

Who cannot join

  • Participation in a clinical research study within the previous 3 months
  • Subjects who are study site employees, or immediate family members of a study site or sponsor employee
  • Subjects who have previously been enrolled in this study
  • History of any drug or alcohol abuse in the past 2 years
  • Regular alcohol consumption in males >21 units per week and females >14 units per week (1 unit = ½ pint beer, 25 mL of 40% spirit or a 125 mL glass of wine)
  • Current smokers and those who have smoked within the last 12 months. A breath carbon monoxide reading of greater than 10 ppm at screening
Show all 29Show fewer
  • Females of childbearing potential who are pregnant or lactating (female subjects must have a negative urine pregnancy test at admission)
  • Clinically significant abnormal biochemistry, haematology or urinalysis as judged by the investigator (laboratory parameters are listed in Appendix 1)
  • Positive drugs of abuse test result (drugs of abuse tests are listed in Appendix 1)
  • Positive hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (HCV Ab) or human immunodeficiency virus (HIV) results
  • History of cardiovascular, renal, hepatic, chronic respiratory or GI disease as judged by the investigator
  • Serious adverse reaction or serious hypersensitivity to any drug or the formulation excipients
  • Presence or history of clinically significant allergy requiring treatment, as judged by the investigator. Hayfever is allowed unless it is active
  • Donation or loss of greater than 400 mL of blood within the previous 3 months
  • Subjects who are taking, or have taken, any prescribed or over-the-counter drug (other than 4 g per day paracetamol, hormone replacement therapy and hormonal contraception) or herbal remedies in the 14 days before IMP administration (See Section 11.4)
  • Use of any non-selective monoamine oxidase (MAO) inhibitors within 2 weeks of screening
  • History or presence of glaucoma
  • History or presence of suspicious undiagnosed skin lesions or a history of melanoma
  • Any history of psychoses or seizure
  • Known hypersensitivity to Sinemet® or domperidone or any of the excipients
  • Any history or presence of Prolactin-releasing pituitary tumour (prolactinoma)
  • Any medical history of GI haemorrhage, mechanical obstruction or perforation
  • Any history of moderate or severe hepatic impairment
  • Subjects with clinically significant liver function tests
  • Subjects with QTc > 450 ms at screening Sponsor/Quotient Clinical Confidential Protocol ND0612-013 (QCL117546) Version 1.0 02 FEB 2015 Page 23 of 42
  • Subjects with significant electrolyte disturbances
  • Subjects with any underlying cardiac disease
  • Subjects who have received QT-prolonging drugs or potent cytochrome P450 (CYP) 3A4 inhibitors within 4 weeks of screening
  • Failure to satisfy the investigator of fitness to participate for any other reason

About this study

Official title: A Single Period Investigation to Assess the Tolerability of Healthy Subjects to Oral Sinemet® (Levodopa/Carbidopa) Doses Administered Using a Divided Dose Approach

A Single Period Investigation to Assess the Tolerability of Healthy Subjects to Oral Sinemet® (Levodopa/Carbidopa) Doses Administered Using a Divided Dose Approach

Read the detailed description

This is a single centre, open-label, single period study in healthy subjects. Each subject will receive the following regimen:

On Day -2, 10 mg domperidone administered every 8 hours 3 times a day (for illustrative purposes, dosing at 07:30, 15:30 and 23:30) On Day -1, 3 doses of 100 mg Sinemet® (every 8 hours) administered as 2 × Sinemet® 12.5 mg/50 mg tablets containing 13.5 mg carbidopa (equivalent to 12.5 mg anhydrous carbidopa) and 50 mg levodopa. Subjects will receive concomitant 10 mg domperidone 30 minutes before every Sinemet® dose.

On Day 1, Sinemet® 12.5 mg/50 mg containing 13.5 mg carbidopa (equivalent to 12.5 mg of anhydrous carbidopa) and 50 mg levodopa administered every hour for 16 consecutive doses (total dose of 800 mg). Subjects will also receive concomitant domperidone up to 20 mg 30 minutes before the first Sinemet® 50 mg dose and every 8 hours (total of 3 doses) after treatment initiation.

It is planned to enrol 6 subjects to ensure there are 6 evaluable subjects. A subject is considered to be evaluable if they have received all 16 Sinemet® 50 mg doses.

Being tested
Levodopa/Carbidopa (Sinemet)
Medical subject headings
Parkinson Disease

What participants receive

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

  • Levodopa/Carbidopa (Sinemet)Drug

    Also called Sinemet

    Oral administration of 2 × 12.5 mg/50 mg Sinemet® tablet containing 13.5 mg carbidopa (equivalent to 12.5 mg anhydrous carbidopa) and 50 mg levodopa three times a day on Day -1 with 240 mL water Oral administration of 1 × 12.5 mg/50 mg Sinemet® tablets containing 13.5 mg carbidopa (equivalent to 12.5 mg of anhydrous carbidopa) and 50 mg levodopa administered with 100 mL water every hour for 16 hours on Day 1

Study groups in NCT02486432
Study groupRoleWhat they receive
Single arm Levodopa/CarbidopaExperimentalThe intervention is dosing with Sinemet® which is an oral tablet containing Levodopa/Carbidopa. Oral administration of 2 × 12.5 mg/50 mg Sinemet® tablet containing 13.5 mg carbidopa (equivalent to 12.5 mg anhydrous carbidopa) and 50 mg levodopa three times a day on Day -1 with 240 mL water Oral administration of 1 × 12.5 mg/50 mg Sinemet® tablets containing 13.5 mg carbidopa (equivalent to 12.5 mg of anhydrous carbidopa) and 50 mg levodopa administered with 100 mL water every hour for 16 hours on Day 1
Receives: Drug: Levodopa/Carbidopa (Sinemet)

What is being measured

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

  1. The objective of the study is to provide safety and tolerability information for oral doses of levodopa and carbidopa administered as a divided dose.

    Safety and tolerability will be assessed by: adverse events (AEs), physical examination, safety laboratory tests, vital signs and electrocardiograms (ECGs).

    Measured: 5 weeks

Timeline

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

  1. First posted1 Jul 2015 (estimated)
  2. Study startApr 2015
  3. Primary completionApr 2015
  4. Study completionApr 2015

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
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02486432
Sponsor's protocol ID
ND0612-013
Status last verified
Jun 2015
First submitted
22 Jun 2015
Last updated
1 Jul 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Levodopa/Carbidopa (Sinemet) in people with Parkinson's Disease, run by NeuroDerm Ltd..

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 6 inclusion and 29 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: finished, as of the sponsor's last update on 1 Jul 2015. Status can change between updates, so confirm with the study contact before making plans.

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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

The objective of the study is to provide safety and tolerability information for oral doses of levodopa and carbidopa administered as a divided dose. (time frame: 5 weeks). 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 1 Jul 2015.

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