Phase 3 Obesity Trial, Completed NCT03649477 Sponsor: Levo Therapeutics, Inc. Condition: Obesity
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Trial results

AI generated results summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

According to the results reported on ClinicalTrials.gov, this trial (NCT03649477) enrolled 130 people across three groups: 44 received the higher dose of LV-101 (9.6 mg), 43 received the lower dose (3.2 mg), and 43 received a placebo (a dummy treatment with no active ingredient). The trial was measuring changes in extreme hunger (called hyperphagia), obsessive and compulsive behaviours, anxiety, and overall clinical impression in participants, most likely those with Prader-Willi syndrome. Two participants in the higher-dose group did not complete the study; everyone else finished. The reported data shows the following score changes from the start of the trial to the end. For extreme hunger (scored 0–36, where lower is better), scores dropped by 3.4 points in the higher-dose group, 5.4 points in the lower-dose group, and 2.2 points in the placebo group. For obsessive and compulsive behaviours (scored 0–40), scores dropped by 3.0 points, 3.1 points, and 2.4 points respectively. For anxiety (scored 0–56), the reported reductions were 4.3 points, 8.3 points, and 4.5 points. For overall clinical impression (scored 1–7), the reported scores at the end were 3.6, 3.4, and 3.9 across the three groups. A subset analysis of the hunger questionnaire also showed score reductions of 3.3, 4.6, and 2.2 points for the three groups. The reported data shows changes across all three groups, including the placebo group. What these numbers mean in terms of real-world benefit or harm is not something that can be determined from the figures alone. These are the results as reported to ClinicalTrials.gov. They are not medical advice — always discuss what they mean for you with your doctor.

These are the results as reported to ClinicalTrials.gov, not medical advice. Verify independently with the trial site and discuss what they mean for you with your doctor.

Phase 3 Obesity Trial, Completed

NCT03649477
Completed Phase 3 🇦🇺 Australian site

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

  • You have been diagnosed with Prader-Willi syndrome (PWS) confirmed by genetic testing
  • A parent or legal guardian is willing and able to sign a consent form on the participant's behalf, and the participant themselves can sign an assent form if appropriate
  • You are in PWS Nutritional Phase 3, meaning you feel hungry almost all the time and rarely feel full

Who may not be able to join:

  • You currently live in a group home
  • You have been diagnosed with Schaaf-Yang syndrome or another genetic, hormonal, or chromosomal condition that affects thinking or learning
  • You have started a new diet plan or changes to your eating environment within the last month before screening
  • Your regular medications or supplements have changed in dose within the last 3 months, or are expected to change during the study (small adjustments to growth hormone of 10% or less are acceptable)
  • You have a heart or cardiovascular condition, epilepsy (seizures), frequent migraines, or severe asthma
  • You have had more than 3 sinus infections in the past 12 months, or have a nasal condition that could affect how a nasal spray is absorbed
  • You are not willing to avoid nasal saline rinses, nasal irrigation, or other nasal sprays for 2 weeks before the study begins and throughout the first 8 weeks of the study
  • You have used weight loss medication, or certain hormones called oxytocin, carbetocin, or vasopressin in the last 6 months
  • You have taken part in another clinical trial involving an experimental drug or device in the last 6 months, or are currently in one
  • The study doctor believes, for any reason, that joining the study would not be appropriate or safe for you (confirm with trial site)

⚠️ Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 16 July 2026
Phase 3: approximately ~65% of drugs entering this phase reach regulatory approval, based on published industry-wide historical data. This is not specific to this trial.
Phase success rates shown are historical industry-wide averages based on published data. They are not a prediction for this specific trial or your individual situation.

Contact this trial

Australian sites

Queensland Children's Hospital, South Brisbane, Queensland

Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.

GP referral letter

Print a one-page summary to share with your doctor.

Trial details

Status
Completed
Phase
Phase 3
Sponsor
Levo Therapeutics, Inc.
Registry
ClinicalTrials.gov
Start date
20 November 2018
Est. completion
13 May 2020

Where this trial is recruiting

🇦🇺 Australia 🇨🇦 Canada 🇺🇸 United States

1 site(s) in Australia. Confirm current status and contact details directly with the trial site.

Primary endpoints

Hyperphagia Behavior; Obsessive and Compulsive Behaviors

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 16 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov