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A First-In-Human Study of ARO-INHBE in Adults With Obesity With and Without Type 2 Diabetes Mellitus

RECRUITINGPhase 1/2Sponsored by Arrowhead Pharmaceuticals
Actively Recruiting
PhasePhase 1/2
SponsorArrowhead Pharmaceuticals
Started2024-12-04
Est. completion2027-09-17
Eligibility
Age18 Years – 65 Years
Healthy vol.Accepted
View on ClinicalTrials.gov →

NCT06700538

Summary

This is a Phase 1/2a double-blind dose-escalating study to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of single and multiple doses of ARO-INHBE in adult participants with obesity (in Part 1), the safety, tolerability, PK, and PD of multiple doses of ARO-INHBE either as monotherapy, or in combination with tirzepatide, in adult participants with obesity with and without type 2 diabetes mellitus (in Part 2 and Part 3).

Eligibility

Age: 18 Years – 65 YearsHealthy volunteers accepted
Inclusion Criteria:

* Obesity, defined as Body Mass Index (BMI) between 30 to 50 kilograms (kg)/square meter (m\^2) at Screening
* At least one self-reported, unsuccessful attempt at weight loss with lifestyle modification
* Type 2 diabetes mellitus for at least 6 months prior to Screening, with glycated hemoglobin (HgbA1c) between 6.0% (42 millimole \[mmol\]/mole \[mol\]) and 9.5% (80 mmol/mol) at Screening, on a stable diabetes medication regimen for at least 3 months (select Part 2 and Part 3 cohorts only)
* Willing, able and motivated to comply with all study assessments and adhere to the protocol schedule, including adherence to a stable diet and exercise routine for the duration of the study
* No abnormal finding of clinical relevance at Screening that, in the opinion of investigator, could adversely impact participant safety or adversely impact study results
* Participants of childbearing potential must agree to use highly effective contraception during the study and for at least 90 days following the end of the study or last dose of study medication, whichever is later. Participants must not donate sperm or eggs during the study and for at least 90 days following the end of the study or last dose of study medication, whichever is later.

Exclusion Criteria:

* Self-reported (or documented) weight gain or loss \>5% within 3 months prior to Screening
* Use of glucagon-like protein 1 receptor (GLP1R) agonists (liraglutide, semaglutide, etc.) for any indication within 6 months prior to Screening
* Use of non-GLP1R medications for weight loss within 3 months prior to Screening, including but not limited to naltrexone/bupropion, orlistat, phentermine/topiramate, and other prescription or over-the-counter medication or supplements taken for weight loss
* Obesity attributable, in the investigator's opinion, to medication use, monogenic, or endocrinologic disorders (other than polycystic ovary syndrome)
* History or prior surgical or device-based therapy for obesity
* Use of medications strongly associated with weight gain within 3 months prior to Screening
* Type 1 diabetes mellitus
* History of hyperthyroidism or thyroid-stimulating hormone (TSH) levels \<0.4 or \>6.0 milli-international units (mIU)/liter (L) at Screening
* Evidence of clinically significant end-organ disease

Note: Other Inclusion/Exclusion criteria may apply per protocol

Conditions2

DiabetesObesity

Interventions2

ARO-INHBETirzepatide

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Trial data from ClinicalTrials.gov. Trial status and eligibility can change — verify directly with the study contact or on ClinicalTrials.gov.

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