A Phase 2 interventional study of RZL-012 and Placebo in Obesity, Weight Loss and Overweight and Obesity, sponsored by Raziel Therapeutics Ltd.. Completed at 1 site in United States. Open to male participants aged 20 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-08-21.
Sponsored by Raziel Therapeutics Ltd. · Phase 2, Interventional, and Treatment
Obesity is a direct result of food-intake in excess of body energy expenditure. Thus, induction of increased energy expenditure via the activation of thermogenesis at targeted anatomical sites can counterbalance obesity. This trial aims to study RZL-012, a novel compound, in treating obesity by activating thermogenesis in subcutaneous fat.
Obesity is a direct result of food-intake in excess of body energy expenditure. Therefore, a feasible approach to combat obesity is via energy-consuming activities, such as physical exercise. Unfortunately, our modern society is moving in the other direction, spending more time in immobilized positions, at work and at home. An alternative strategy for the induction of increased energy expenditure is via the activation of thermogenic cells that utilize fat to produce heat.RZL-012 is a novel molecule that enables de-novo generation of thermogenic tissue at favorable anatomical sites. As a result, the extra fat accumulated in obese persons will be turned into heat. This is a double blind, randomized, placebo controlled, dose escalation Phase 2a clinical trial for the evaluation of safety, efficacy and thermogenesis-induction of RZL-012 in overweight and obese volunteers. This trial aims to study the ability of RZL-012 in treating obesity via the induction of thermogenic foci in subcutaneous fat.
6,296 studies on the registry are indexed under Obesity; 1,692 are open to participants now.
This study's enrollment of 32 is below the median of 78 across 4,878 interventional studies indexed under Obesity.
Browse Obesity studies →Raziel Therapeutics Ltd. is the lead sponsor of 9 studies on the registry; none are open to participants now.
Of its 9 completed or terminated interventional studies of FDA-regulated products, 8 (89%) have results posted.
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Exclusion Criteria:
A single-time injection, multiple subcutaneous injections of RZL-012 administered into 8-36 sites (0.1mL per site): 1. 40mg RZL-012 -administered at 8 sites 2. 80mg RZL-012 - administered at 16 sites 3. 120mg RZL-012 - administered at 24 sites 4. 180mg RZL-012 - administered at 36 sited
Drug: RZL-012
A single-time injection, multiple subcutaneous injections of Placebo administered into 8-36 sites (0.1mL per site)
Drug: Placebo
Subject receive a single-time injection. Multiple injections of RZL-012 are administered at 8-36 sites (0.1mL per site) into the abdominal subcutaneous fat.
Subject receive a single-time injection. Multiple injections of the Placebo are administered at 8-36 sites (0.1mL per site) into the abdominal subcutaneous fat.
Safety: The Incidence of Treatment-related Adverse Events [AEs]
AEs will be assessed by significant clinical changes in safety parameter (e.g. vital signs, ECG, clinical laboratory evaluations)AEs incidence will be by body system, seriousness, severity and relation to study drug by cohort.
Time frame: 0-168 days
Efficacy: A Significant Thermogenesis at the Injected Site.
Thermogenesis is measured by thermal imaging is non-invasive, non-radiating Infra-Red thermal camera that passively measures the emitting infra-red radiation of body surface. Difference in temperatures between the sites (treated - not treated) by visit treatment along with the change from baseline (net-delta) in these differences by cohort and overall. Significant thermogenesis is defined as net-delta ≥ 1. Outcome measure data table represents the number of subjects who demonstrated an increase that is higher than 1 celsius degree.
Time frame: 28-168 days
Duration of the Thermogenic Effect From Day 28.
The duration of the thermogenic effect for subjects in the active arm with thermogenic effect (net-delta ≥ 1) by visit and cohort.
Time frame: 28-168 days
Local Reduction in Fat Mass as Measured by MRI. Local Reduction in Fat Will be Measured by Periodically MRI Scans of the Abdomen.
Subcutaneous Fat Mass (SFM) ratio (treated sites / control sites) averaged over the MRI slices by visit, treatment and cohort and the change from baseline in SFM ratio (in % from the ratio at baseline) compared between the treatment arms.
Time frame: 28-168 days
Changes in Fasting Blood Glucose From Baseline.
Changes from baseline in fasting blood glucose by visit, treatment, and cohort.
Time frame: 56 days
Changes in Blood Lipid Profile From Baseline.
Changes from baseline in lipid profile by visit, treatment, and cohort.
Time frame: 56 days
Pharmacokinetics: Establishing Pharmacokinetic Profile of RZL-012.
Averaged Cmax values by cohort.
Time frame: 1-2 days
Changes in Body Weight
Changes from baseline in body weight by visit, treatment, and cohort.
Time frame: 56 days
Changes in Waist to Hip Ratio [WHR]
Changes from baseline in WHR by visit, treatment, and cohort. WHR is calculated by measurements of waist circumference and hip circumference.
Time frame: 56 days
Elucidation of the Histological Changes Account for the Thermogenic Effect.
An abdominal subcutaneous adipose tissue biopsy will be taken from the injected side. Histology results will be assessed for 2 subjects who were injected with 120 mg RZL-012 and for one subject who was injected with placebo.
Time frame: 56 days
Change From Baseline in Inflammatory Markers and Cytokines. Testing of Inflammatory Markers and Cytokines Will be Conducted by Blood Sampling.
Changes from baseline in inflammatory markers and cytokines by visit, treatment, and cohort. Testing of inflammatory markers and cytokines will be conducted by blood sampling.
Time frame: 28 days
Pharmacokinetics: Establishing Pharmacokinetic Profile of RZL-012.
Averaged Tmax values by cohort.
Time frame: 0.5, 1,2,3,4,5,6,8,12,16,24,30 hours
| Milestone | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Started | 6 | 6 | 6 | 6 | 9 |
| Completed | 6 | 6 | 6 | 6 | 7 |
| Not completed | 0 | 0 | 0 | 0 | 2 |
| Withdrew: Lost to follow-up | 0 | 0 | 0 | 0 | 2 |
AEs will be assessed by significant clinical changes in safety parameter (e.g. vital signs, ECG, clinical laboratory evaluations)AEs incidence will be by body system, seriousness, severity and relation to study drug by cohort.
| participants | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Serious Adverse Events | 0 | 0 | 0 | 0 | 0 |
| Other Adverse Events | 6 | 6 | 6 | 6 | 9 |
| Cardiac disorder ventricular extrasystoles | 0 | 0 | 0 | 0 | 1 |
| Ear and labyrinth disorders - Ear pain | 0 | 0 | 0 | 0 | 1 |
| Ear and labyrinth disorders Ear swelling | 0 | 0 | 0 | 0 | 1 |
| Ear and labyrinth disorders - Hypoacusis | 0 | 0 | 0 | 0 | 1 |
| Ear and labyrinth disorders otorrhoea | 0 | 0 | 0 | 0 | 2 |
| Aministration site condition - energy uncreased | 1 | 0 | 0 | 0 | 0 |
| Aministration site condition - Fatifue | 1 | 0 | 0 | 0 | 0 |
| Administration site condition - feeling hot | 0 | 0 | 1 | 0 | 0 |
| Administration site condition - bruising | 1 | 1 | 1 | 2 | 3 |
| Administration site condition - discolourization | 0 | 0 | 0 | 1 | 0 |
| Administration site condition - Erythema | 6 | 6 | 4 | 5 | 8 |
| Administration site condition - hemorrhage | 0 | 0 | 1 | 0 | 0 |
| Administration site condition - injection mass | 0 | 0 | 0 | 1 | 0 |
| Administration site condition - nodule | 0 | 0 | 0 | 1 | 0 |
| Administration site condition- Edema | 6 | 4 | 6 | 4 | 5 |
| Administration site condition - pain | 6 | 5 | 5 | 5 | 3 |
| Administration site condition- pruritus | 2 | 0 | 0 | 2 | 0 |
| Administration site condition - rash | 1 | 0 | 0 | 0 | 0 |
| Administration site condition - warmth | 2 | 0 | 0 | 0 | 0 |
| Administration site condition medical device reac | 0 | 0 | 1 | 0 | 0 |
| general condition non cardiac chest pain | 0 | 1 | 0 | 0 | 0 |
| Injury and procedure complications - skin abrasion | 0 | 1 | 0 | 0 | 0 |
| Investigations - Electrodiagram QT prolonged | 0 | 0 | 0 | 0 | 1 |
| Muscoloskeletal and connective tissue - myalgia | 0 | 0 | 1 | 0 | 0 |
| Muscoloskeletal and connective tissue - pain extre | 0 | 0 | 0 | 0 | 1 |
| Nervou system disorders- Dizziness | 0 | 0 | 1 | 0 | 0 |
| Nervou system disorders - Headache | 2 | 1 | 2 | 0 | 1 |
| Respeiratory, thoracic - oropharyngea pain | 0 | 0 | 1 | 0 | 0 |
| Respeiratory, thoracic - Respiratory tracongestion | 0 | 1 | 0 | 0 | 0 |
| Respeiratory, thoracic - Rhinorrhoea | 1 | 0 | 1 | 0 | 0 |
| skin and subcutaneous tissue disorders - erythema | 0 | 0 | 3 | 0 | 0 |
| skin and subcutaneous tissue disorders hyperhidros | 0 | 0 | 1 | 0 | 0 |
| skin and subcutaneous tissue disorders - pruritus | 0 | 0 | 0 | 1 | 0 |
Thermogenesis is measured by thermal imaging is non-invasive, non-radiating Infra-Red thermal camera that passively measures the emitting infra-red radiation of body surface. Difference in temperatures between the sites (treated - not treated) by visit treatment along with the change from baseline (net-delta) in these differences by cohort and overall. Significant thermogenesis is defined as net-delta ≥ 1. Outcome measure data table represents the number of subjects who demonstrated an increase that is higher than 1 celsius degree.
| Participants | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Day 28 | 5 | 5 | 3 | 6 | 1 |
| Day 56 | 1 | 3 | 3 | 6 | 0 |
| Day 84 | NA | NA | NA | 4 | 0 |
| Day 112 | NA | NA | NA | 5 | 0 |
| Day 140 | NA | NA | NA | 4 | 0 |
| Day 168 | NA | NA | NA | 3 | 0 |
The duration of the thermogenic effect for subjects in the active arm with thermogenic effect (net-delta ≥ 1) by visit and cohort.
| days | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Duration of the Thermogenic Effect From Day 28. | 5.6 ± 12.5 | 16.8 ± 15.3 | 5.6 ± 12.5 | 107.3 ± 44.9 | 0 ± 0 |
Subcutaneous Fat Mass (SFM) ratio (treated sites / control sites) averaged over the MRI slices by visit, treatment and cohort and the change from baseline in SFM ratio (in % from the ratio at baseline) compared between the treatment arms.
| percentage of SFM reduction | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Day 28 | -0.62 ± 5.17 | -9.15 ± 10.55 | -9.1 ± 4.27 | -14.68 ± 8.16 | 2.94 ± 10.08 |
| Day 56 | NA ± NA | -8.56 ± 8.85 | -10.52 ± 8.42 | -18.10 ± 10.93 | 3.61 ± 3.48 |
| Day 84 | NA ± NA | NA ± NA | NA ± NA | -12.75 ± 9.83 | -6.57 ± 9.78 |
| Day 112 | NA ± NA | NA ± NA | NA ± NA | -16.10 ± 13.81 | -8.2 ± 11.54 |
| Day 140 | NA ± NA | NA ± NA | NA ± NA | -12.46 ± 11.26 | -2.9 ± 0.45 |
| Day 168 | NA ± NA | NA ± NA | NA ± NA | -14.32 ± 10.94 | -2.54 ± 8.57 |
Changes from baseline in fasting blood glucose by visit, treatment, and cohort.
| mg/dL | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Day -1 | 86.7 ± 4.2 | 91.3 ± 5.16 | 91.7 ± 7.47 | 90.8 ± 7.17 | 93.2 ± 3.93 |
| Day 56 | 93 ± 3.22 | 92.8 ± 11.8 | 93.3 ± 7.58 | 93.7 ± 5.3 | 94.6 ± 6.6 |
Changes from baseline in lipid profile by visit, treatment, and cohort.
| mg/dL | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Cholesterol Day -1 | 188 ± 32.8 | 199 ± 11 | 196 ± 41.4 | 170.8 ± 23 | 186.7 ± 19.8 |
| Cholesterol Day 56 | 184 ± 39.8 | 205 ± 29.7 | 201.7 ± 46.1 | 176 ± 28.6 | 182.4 ± 19.3 |
| HDL Day -1 | 43.5 ± 7.23 | 44.33 ± 11.1 | 41.5 ± 6 | 44 ± 6.87 | 42.44 ± 5.6 |
| HDL Day 56 | 40 ± 9.44 | 50.8 ± 14.2 | 41.5 ± 9.9 | 45.3 ± 5.05 | 41.14 ± 7 |
| LDL Day -1 | 129 ± 33.5 | 126.5 ± 13.3 | 134 ± 33 | 105.5 ± 15 | 116 ± 10.3 |
| LDL Day 56 | 120 ± 31.3 | 132 ± 23.9 | 134.7 ± 37 | 128 ± 0 | 103 ± 14.8 |
| Triglycerides Day -1 | 107.3 ± 42.3 | 131 ± 77 | 112.5 ± 58.9 | 121.7 ± 39.3 | 155.8 ± 98 |
| Triglycerides Day 56 | 118 ± 85.4 | 136 ± 61.1 | 193.5 ± 16.7 | 128.33 ± 55.4 | 234 ± 220 |
Averaged Cmax values by cohort.
| ng/mL | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 |
|---|---|---|---|---|
| Pharmacokinetics: Establishing Pharmacokinetic Profile of RZL-012. | 84.15 ± 16.27 | 181.89 ± 49.86 | 241 ± 72.09 | 344 ± 73.7 |
Changes from baseline in body weight by visit, treatment, and cohort.
| Kg | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Weight Day -1 | 103.3 ± 11.1 | 95.4 ± 6.9 | 101.3 ± 20.3 | 96.1 ± 12.6 | 99.1 ± 8.1 |
| Weight Day 56 | 104.4 ± 12.5 | 96.1 ± 7.8 | 103.4 ± 22.4 | 96 ± 12.3 | 101.2 ± 9.7 |
Changes from baseline in WHR by visit, treatment, and cohort. WHR is calculated by measurements of waist circumference and hip circumference.
| ratio | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Waist to hip ratio Day -1 | 1 ± 0.1 | 1 ± 0 | 1 ± 0.1 | 1 ± 0 | 1 ± 0.1 |
| Waist to hip ratio Day 56 | 1 ± 0 | 1 ± 0 | 1 ± 0 | 1 ± 0 | 1 ± 0.1 |
An abdominal subcutaneous adipose tissue biopsy will be taken from the injected side. Histology results will be assessed for 2 subjects who were injected with 120 mg RZL-012 and for one subject who was injected with placebo.
| Participants | RZL-012 Cohort 3 | Placebo |
|---|---|---|
| Elucidation of the Histological Changes Account for the Thermogenic Effect. | 2 | 1 |
Changes from baseline in inflammatory markers and cytokines by visit, treatment, and cohort. Testing of inflammatory markers and cytokines will be conducted by blood sampling.
| mg/dL | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|
| CRP Day -1 (mg/dL) | 0.2 ± 0.13 | 0.6 ± 1.08 | 0.5 ± 0 | 0.2 ± 0.1 |
| CRP Day 28 (mg/dL) | 0.27 ± 0.31 | 0.2 ± 0.12 | 0.43 ± 0.15 | 0.2 ± 0.1 |
Averaged Tmax values by cohort.
| Hour | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 |
|---|---|---|---|---|
| Pharmacokinetics: Establishing Pharmacokinetic Profile of RZL-012. | 1.83 ± 0.41 | 1.83 ± 0.41 | 1.83 ± 0.41 | 2 ± 0 |
Collected over All reported adverse events were coded to a standard set of terms using MedDRA coding dictionary. Cohort 4 subjects were followed up for Adverse Events up to 168 days following injection.. Non-serious events are listed at a 4% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| RZL-012 Cohort 1 | 0/6 (0%) | 0/6 (0%) | 6/6 (100%) |
| RZL-012 Cohort 2 | 0/6 (0%) | 0/6 (0%) | 6/6 (100%) |
| RZL-012 Cohort 3 | 0/6 (0%) | 0/6 (0%) | 6/6 (100%) |
| RZL-012 Cohort 4 | 0/6 (0%) | 0/6 (0%) | 6/6 (100%) |
| Placebo | 0/9 (0%) | 0/9 (0%) | 9/9 (100%) |
| Event | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo |
|---|---|---|---|---|---|
| Injection site ErythemaGeneral disorders | 6/6 | 6/6 | 4/6 | 5/6 | 8/9 |
| Injection site EdemaGeneral disorders | 6/6 | 4/6 | 6/6 | 4/6 | 5/9 |
| Injection site painGeneral disorders | 6/6 | 5/6 | 5/6 | 5/6 | 3/9 |
| ErythemaSkin and subcutaneous tissue disorders | 0/6 | 0/6 | 3/6 | 0/6 | 0/9 |
| Injection site bruisingGeneral disorders | 1/6 | 1/6 | 1/6 | 2/6 | 3/9 |
| Injection site pruritusGeneral disorders | 2/6 | 0/6 | 0/6 | 2/6 | 0/9 |
| Injection site warmthGeneral disorders | 2/6 | 0/6 | 0/6 | 0/6 | 0/9 |
| HeadacheNervous system disorders | 2/6 | 1/6 | 2/6 | 0/6 | 1/9 |
| Energy increasedGeneral disorders | 1/6 | 0/6 | 0/6 | 0/6 | 0/9 |
| fatigueGeneral disorders | 1/6 | 0/6 | 0/6 | 0/6 | 0/9 |
20-60 years old, overweight and obese by BMI definition (27.5 \< BMI ≤ 34.9), adult males.
| Age, Categorical(Participants) | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo | Total |
|---|---|---|---|---|---|---|
| <=18 years | 0 | 0 | 0 | 0 | 0 | 0 |
| Between 18 and 65 years | 6 | 6 | 6 | 6 | 9 | 33 |
| >=65 years | 0 | 0 | 0 | 0 | 0 | 0 |
| Age, Continuous(years) | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo | Total |
|---|---|---|---|---|---|---|
| Mean | 31.7 ± 2.1 | 44.5 ± 12.1 | 40 ± 11.8 | 41.7 ± 13.2 | 39.2 ± 10.3 | 39.4 ± 10.8 |
| Sex: Female, Male(Participants) | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo | Total |
|---|---|---|---|---|---|---|
| Female | 0 | 0 | 0 | 0 | 0 | 0 |
| Male | 6 | 6 | 6 | 6 | 9 | 33 |
| Ethnicity (NIH/OMB)(Participants) | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo | Total |
|---|---|---|---|---|---|---|
| Hispanic or Latino | 0 | 1 | 0 | 0 | 1 | 2 |
| Not Hispanic or Latino | 6 | 5 | 6 | 6 | 8 | 31 |
| Unknown or Not Reported | 0 | 0 | 0 | 0 | 0 | 0 |
| Region of Enrollment(participants) | RZL-012 Cohort 1 | RZL-012 Cohort 2 | RZL-012 Cohort 3 | RZL-012 Cohort 4 | Placebo | Total |
|---|---|---|---|---|---|---|
| United States | 6 | 6 | 6 | 6 | 9 | 33 |
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Raziel Therapeutics Ltd.