ClinicalTrials.gg
Status unknownNCT03457311Updated Mar 7, 2018

Clinical Study for Development of Oral Galactose Single Point (OGSP) Solution (G.S.P. Oral Solution®)

A Phase 3 interventional study of G.S.P. Oral Solution 400 mg/ml in Galactose Single Point (GSP), Residual Liver Function, sponsored by Richever Enterprise Co., Ltd.. Status unknown. Open to participants aged 20 Years to 85 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-03-07.

Sponsored by Richever Enterprise Co., Ltd. · Phase 3, Interventional, and Screening

The sponsor has not verified this record recently (last verified Feb 2018), so the status shown — last known as Active, not recruiting — may be out of date.

From the registry’s dates

  • Registered 4 years 5 months after the study started (first participant enrolled Sep 2013, registered Mar 2018).
Phase
Phase 3
Study type
Interventional
Enrollment
200
Allocation
Not applicable
Ages
20 Years to 85 Years
Sex
All
01

Study summary

The primary objective is to determine the oral galactose single point (OGSP) cutoff values to discriminate subjects with different hepatic function. The secondary objective is to analyze the correlations between OGSP and other hepatic function assessment methods among this trial subjects.

Read the detailed description

A novel, simple, clinically useful quantitative liver function test, called the galactose single point (GSP) method, was developed to assess residual liver function by measuring galactose blood concentration 1 hour after galactose was administered (0.5 g/kg). The galactose single point (GSP) method has been used to evaluate liver function in both humans and rats, and GSP concentration has been found to closely reflect changes in enzyme activity and hepatic blood flow. The Federal Drug Administration of the U.S. has recommended the GSP method in its guidelines for industry pharmacokinetics for patients with impaired hepatic function (FDA 2003). The GSP method has also been successfully applied to measure the clearance of drugs that are excreted from the liver but not metabolized, such as promazine and cefoperazone, specifically in patients with various liver diseases. Hu et al. demonstrated that GSP concentration is strongly correlated with the severity of liver disease.

This translate the traditional GSP method to oral galactose single point (OGSP) that will greatly improve the technical simplicity and reduce the burden to patients and will easily applied to patient both in hospital and home to measure the residual liver function.

02

Conditions studied

  • Galactose Single Point (GSP), Residual Liver Function

Keywords

  • GSP, oral galactose single point (OGSP)
03

In context

Pseudohypoparathyroidism

23 studies on the registry are indexed under Pseudohypoparathyroidism; 8 are open to participants now.

Browse Pseudohypoparathyroidism studies →

Lead sponsor

This is the only study on the registry with Richever Enterprise Co., Ltd. as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Subject must fulfill all of the following criteria to be eligible for the study:

  1. Male or female with age between 20-85.
  2. Ability and willingness to provide , adhere to the study visit schedule and complete all study assessments and language specific questionnaires.

Exclusion criteria

Exclusion Criteria:

Any of the following criteria will disqualify the subject from participation:

  1. History of serious allergic reaction to galactose and have galactosemia.
  2. History of receiving total gastrectomy, subtotal gastrectomy, celiac disease, or small intestinal resection.
  3. History of diabetes mellitus.
  4. Subjects are children or handicapped people.
  5. Subjects with any other reasons considered by the investigator not in the condition to enter into the trial.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 3
Primary purpose
Screening
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
200 participants (estimated)

Study arms

  • Other
    OGSP measurement

    For the OGSP measurement, subjects will be orally administered with 1.25 ml/kg G.S.P. oral solution (400 mg/ml of galactose). At least 20 ml water will be given to subjects after drinking G.S.P. oral solution within 3 to 5 minutes. Sixty minutes after oral G.S.P. solution, a sample of 0.5 ml of whole blood will be taken from subject's finger for the determination of OGSP value.

    Drug: G.S.P. Oral Solution 400 mg/ml

Interventions

  • DrugG.S.P. Oral Solution 400 mg/ml

    Oral 1.25 ml/kg BW G.S.P. oral solution after fasting for 6 hours.

06

What researchers measure

Primary outcomes

  1. Blood concentration of oral galactose

    To determine the OGSP cutoff values based on data obtained from this trial to discriminate subjects with different hepatic function

    Time frame: Sixty minutes

07

Study locations

No study locations are listed for this record.

08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Sep 2013 (actual). Primary completion is estimated for Mar 2018, 54 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 1, 2018
First posted
Mar 7, 2018
StartActual
Sep 9, 2013
Primary completionEst.
Mar 31, 2018
CompletionEst.
Mar 31, 2018
Last update
Mar 7, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 7, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03457311
Lead sponsor
Richever Enterprise Co., Ltd.
Responsible party
Sponsor
First posted
Mar 7, 2018
Start date
Sep 9, 2013
Primary completion
Mar 31, 2018 (estimated)
Completion
Mar 31, 2018 (estimated)
Last update
Mar 7, 2018

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Feb 2018. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion