ClinicalTrials.gg
CompletedNCT03541005Updated Oct 21, 2021

Evaluation of Obex® in Overweight and Obesity

A Phase 3 interventional study of Obex and Placebo in Overweight and Obesity, sponsored by Catalysis SL. Completed at 1 site in Cuba. Open to participants aged 20 Years to 65 Years. Per ClinicalTrials.gov, last updated 2021-10-21.

Primary conditionObesityRegistry: OverweightReclassifiedWhy we changed it
Registry
Overweight — the first condition term the registry derived for this study.
ClinicalTrials.gg
Obesity
Why
  1. The study's listed conditions name Obesity, a narrower term within Overweight.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Catalysis SL · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
160
Allocation
Randomized
Ages
20 Years to 65 Years
Sex
All
01

Study summary

  • Obesity is an important and growing worldwide
  • Obesity is highly related to the development of metabolic syndrome, diabetes, cardiovascular diseases and cancer
  • Diverse adverse events have been reported with the use of antiobesity drugs.
  • Several articles describe the beneficial effect of several specific components of the Obex® supplement on weight loss, in the reduction of waist circumference, suppression of appetite, decrease fasting glucose levels, improvement of insulin sensitivity and β cells function.
  • Therefore, the administration of Obex in overweight and obese patients could be an excellent strategy to induce weight loss and ameliorate the metabolic disturbances related to obesity and overweight.
02

Conditions studied

  • Overweight and Obesity

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Keywords

  • Overweight
  • Obesity
  • Nutritional supplement
  • Weight loss
  • waist
03

In context

Obesity Reclassified

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

This study's enrollment of 160 is above the median of 67 across 9,006 interventional studies indexed under Obesity.

Browse Obesity studies →

Lead sponsor

Catalysis SL is the lead sponsor of 53 studies on the registry; 4 are open to participants now.

Compared within Obesity, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Overweight. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
20 Years to 65 Years
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

  • Patients who fulfill the diagnosis criteria of overweight or obesity ( ≥ 25.0 and less than 40).
  • Age between 20 and 65 years old.
  • Values of fasting glucose \< 7.0 mmol / L and at two hours \< 11.1 mmol / L during Glucose Tolerance Test (OGTT).
  • Written of participation in the study.

Exclusion criteria

Exclusion Criteria:

  • Thyroid dysfunction (hypo or hyperthyroidism).
  • Type 1 or type 2 diabetes.
  • Prediabetes treated with oral agents.
  • Alterations of lipids treated with drugs.
  • Medicine consumption of or dietary supplements that influence the reduction of body weight.
  • Consumption of or prolonged use of them (last 3 months).
  • Treatment with drugs.
  • Chronic diseases (of the hepatic, renal and cardiovascular systems, pancreatitis or some type of condition) or acute at the time of inclusion.
  • Insulin resistance due to diseases such as acromegaly, endogenous hypercortisolism, polycystic ovarian syndrome or hyperprolactinemia.
  • History of symptomatic hypoglycaemia.
  • History of chronic debilitating diseases, anemia and collagen diseases.
  • History or existence psychological illness with eating disorders or toxicity.
  • History of alcoholism or drug dependence.
  • Inability to comply with the instructions of the investigation.
  • Severe infections at the time of inclusion.
  • Women of childbearing age who use hormonal (oral or injectable).
  • Pregnant or breastfeeding.
  • Known sensitivity to any of the components of the formulation
  • Gynoid fat distribution.
Terms in these criteria, in plain language(6)

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.

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.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
160 participants (actual)

Study arms

  • Experimental
    Obex

    a nutritional supplement Obex® 8 g daily by oral route divided into two doses of 4g (between 15 and 20 minutes before lunch and dinner) diluted in water or juice for 6 months. Patients will be recommended to comply with a healthy lifestyle through diet and exercise.

    Dietary Supplement: Obex

  • Placebo comparator
    Placebo

    Placebo 8 g daily by oral route divided into two doses of 4g (between 15 and 20 minutes before lunch and dinner) diluted in water or juice for 6 months. Patients will be recommended to comply with a healthy lifestyle through diet and exercise.

    Dietary Supplement: Placebo

Interventions

  • Dietary supplementObex

    After concluded the six months of treatment, patients will be follow-up during six months without consumption of Obex

  • Dietary supplementPlacebo

    After concluded the six months of treatment, patients will be follow-up during six months without consumption of the placebo.

06

What researchers measure

Primary outcomes

  1. Change From Baseline in Body Weight.

    Change in body weight from baseline (0) after six months of treatment (i.e., weight at six month minus weight at baseline 0). Body weight measured in kilograms (k).

    Time frame: Six months

  2. Change From Baseline in Waist Circumference at Week 24.

    Change in waist circumference from baseline after six months of treatment (i.e., waist circumference at six month minus waist circumference at baseline 0). Waist measured in centimeters (cm).

    Time frame: Six months

  3. To evaluate the effect of Obex® on fasting glucose levels.

    The primary outcome is to evaluate the effect of the treatment with Obex® on fasting glucose levels by blood analysis.

    Time frame: Six months

Secondary outcomes

  1. To evaluate the effect of Obex® on Body Mass Index (BMI).

    The BMI will be measured by Quételet index.

    Time frame: Six months

  2. To evaluate the effect of Obex® on the waist and hip ratio.

    Waist and hip ratio will be measured according to the World Health Organisation's data gathering protocol.

    Time frame: Six months

  3. To evaluate the effect of Obex® on the waist and height ratio.

    Waist and height ratio will be measured.

    Time frame: Six months

  4. To evaluate the effect of Obex® on arterial blood pressures (BP).

    The arterial BP will be evaluated by the doctor.

    Time frame: Six months

  5. To evaluate the effect of Obex® on fasting insulin levels.

    The insulin levels will be evaluated by blood analysis.

    Time frame: Six months

  6. To evaluate the effect of Obex® on insulin resistance.

    Homeostasis model assessment-estimated insulin resistance (HOMA-IR), calculated from individual serum measures (fasting insulin x fasting glucose/22.5).

    Time frame: Six months

  7. To evaluate the effect of Obex® on insulin sensitivity.

    The Quicki, Bennett and Raynaud insulin sensitivity indexes will be evaluated by QUICKI = \[1/\[log I0 + log G0\], Bennett index (BEN) = 1/(log I0 x log G0), Raynaud index (RAY) = \[40/I0\]).

    Time frame: Six months

  8. To evaluate the effect of Obex® on β-cell function.

    Homeostatic model assessment-beta cell (HOMA-β), calculated from individual serum measures (20 x fasting insulin (µU/mL)/fasting glucose (mmol/L)-3.5).

    Time frame: Six months

  9. To evaluate the effect of Obex® on cholesterol.

    The cholesterol, triglyceride, HDL-c and LDL-c levels will be evaluated by blood analysis.

    Time frame: Six months

  10. To evaluate the effect of Obex® on hepatic enzymes.

    The hepatic enzymes (Alanine aminotransferase, Aspartate aminotransferase, gamma-glutamyltransferase, Alkaline Phosphatase) will be evaluated by blood analysis.

    Time frame: Six months

  11. To evaluate the effect of Obex® on creatinine and uric acid concentrations.

    The creatinine and uric acid levels will be evaluated by blood analysis.

    Time frame: Six months

  12. To evaluate the effect of Obex® on haemoglobin levels.

    The haemoglobin levels will be evaluated by blood analysis.

    Time frame: Six months

  13. To evaluate the effect of Obex® on Conicity Index (CI)

    CI will be measured by index.

    Time frame: Six months

07

Study locations

1 site
  • National Institute of Endocrinology
    Havana, La Habana 10400, Cuba
08

References and documents

Individual participant data

Plan to share: Yes

Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report

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

Ran from Oct 2018 to primary completion in Sep 2019, 11 months.

Of 198 industry-sponsored phase 3 interventional studies under Obesity, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 27. This study's 11 months is below that.

Counting every sponsor, half of 261 studies reached it within 24 months; a quarter within 18 and three quarters within 34.

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

Registered
May 3, 2018
First posted
May 30, 2018
StartActual
Oct 1, 2018
Primary completionActual
Sep 1, 2019
CompletionActual
Jul 3, 2021
Last update
Oct 21, 2021
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 Oct 21, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03541005
Lead sponsor
Catalysis SL
Responsible party
Sponsor
First posted
May 30, 2018
Start date
Oct 1, 2018
Primary completion
Sep 1, 2019
Completion
Jul 3, 2021
Last update
Oct 21, 2021

Study contacts

Roselin Valle Cabrera, BSc.
study director · National Coordinator Center of Clinical Trials (CENCEC)

Oversight

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

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This study is completed, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.

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