ClinicalTrials.gg
Not yet recruitingNCT06041841Updated Nov 2, 2023

A Phase 2 Study to Assess Efficacy and Safety of LB54640 in Patients With Genetic Obesity

A Phase 2 interventional study of LB54640 in POMC Deficiency Obesity, PCSK1 Deficiency Obesity and LEPR Deficiency Obesity, sponsored by LG Chem. Not yet recruiting at 2 sites in 2 countries. Open to participants aged 12 Years and older. Per ClinicalTrials.gov, last updated 2023-11-02.

Sponsored by LG Chem · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2024, 1 year 11 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 2
Study type
Interventional
Enrollment
4
Allocation
Not applicable
Ages
12 Years and older
Sex
All
01

Study summary

The purpose of the study was to assess the efficacy of LB54640 in participants with rare genetic disorders of obesity

Read the detailed description

Patients with obesity due to POMC, PCSK1 or LEPR deficiency will be enrolled to receive LB54640 by oral administration for 16 weeks. After 16 weeks of treatment, the participant may enter a long term extension phase and receive treatment for up to 1 year.

02

Conditions studied

  • POMC Deficiency Obesity
  • PCSK1 Deficiency Obesity
  • LEPR Deficiency Obesity

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03

In context

Obesity

11,522 studies on the registry are indexed under Obesity; 2,033 are open to participants now.

This study's planned enrollment of 4 is below the median of 67 across 9,006 interventional studies indexed under Obesity.

Browse Obesity studies →

Lead sponsor

LG Chem is the lead sponsor of 71 studies on the registry; 8 are open to participants now.

Of its 13 completed or terminated interventional studies of FDA-regulated products, 1 (8%) have results posted.

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

04

Who can participate

Ages eligible
12 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Participants aged ≥12 years at the time of enrollment and diagnosed with genetic obesity due to POMC, PCSK1, or LEPR deficiency mutations.
  • Obesity is defined as ≥30 kg/m2 for participants ≥18 years of age or BMI ≥95th percentile for age and gender for participants \<18 years of age.

Exclusion criteria

Exclusion Criteria:

  • Participants with recent (within 2 months, prior to Screening and up to enrollment) intensive diet/exercise regimen that resulted in >2% weight loss, use of medication to treat obesity (within 3 months of first dose of LB54640 with certain exceptions), or weight loss surgery within 6 months prior to Screening or prior surgery which resulted in >10% weight loss with no evidence of weight regain are excluded
  • History of major surgical procedure
  • Weight loss surgery within the previous 6 months
  • Any history of a suicide attempt, or any suicidal behavior
  • >10.9%
  • Fasting glucose level >270 mg/dL
Terms in these criteria, in plain language(2)

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
4 participants (estimated)

Study arms

  • Experimental
    POMC/PCSK1/LEPR cohort

    LB54640 once daily by oral administration

    Drug: LB54640

Interventions

06

What researchers measure

Primary outcomes

  1. Change of BMI

    Time frame: From baseline to Week 16

Secondary outcomes

  1. Frequency and severity of adverse events (AE)

    Time frame: From first dose up to Week 52

  2. Frequency and severity of adverse events of special interest (AESI)

    Time frame: From first dose up to Week 52

  3. Mean change and mean percentage change from baseline in body weight

    Time frame: From baseline up to Week 52

  4. Mean change and mean percentage change from baseline in waist circumference.

    Time frame: From baseline up to Week 52

  5. Mean change and mean percentage change from baseline in Hunger Questionnaire Scores

    The question will asked using the Hunger Questionnaire. The questionnaire consists of a new 5-item, patient-reported scale assessing major eating-related factors (worst and average hunger, appetite, craving, and satiety).

    Time frame: From baseline up to Week 52

  6. Mean change and mean percentage change from baseline in body composition assessed by dual energy x-ray absorptiometry

    Fat mass and lean mass will be measured through dual energy x-ray absorptiometry

    Time frame: From baseline up to Week 52

07

Study locations

2 sites
  • Pitié Salpêtrière hospital and Sorbonne Université
    Paris, France
  • Cambridge university
    Cambridge, United Kingdom
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Dec 2023; primary completion for Dec 2024, 12 months later.

Of 176 industry-sponsored phase 2 interventional studies under Obesity, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 18. This study's planned 12 months is close to that.

Counting every sponsor, half of 308 studies reached it within 16 months; a quarter within 10 and three quarters within 35.

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

Registered
Sep 11, 2023
First posted
Sep 18, 2023
StartEst.
Dec 2023
Primary completionEst.
Dec 2024
CompletionEst.
Dec 2025
Last update
Nov 2, 2023
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 Nov 2, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06041841
Lead sponsor
LG Chem
Responsible party
Sponsor
First posted
Sep 18, 2023
Start date
Dec 2023 (estimated)
Primary completion
Dec 2024 (estimated)
Completion
Dec 2025 (estimated)
Last update
Nov 2, 2023

Study contacts

LG CHEM
Contact
pathway@lgchem.com
+82-2-3777-1114

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2023. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Bivamelagon

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