A Study to Assess Efficacy, Safety, Tolerability, Pharmacokinetics (PK) and Pharmacodynamics (PD) of RO7204239 in Combination With Tirzepatide in Participants With Obesity or Overweight With At Least One Weight-related Comorbidity

NCT ID: NCT06965413

Last Updated: 2025-11-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

285 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-05-05

Study Completion Date

2027-07-24

Brief Summary

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The main aim of the study is to assess the effect of RO7204239 in combination with tirzepatide, compared to placebo in combination with tirzepatide, on body weight loss after 48 weeks of treatment in adults with obesity or overweight with at least one weight-related comorbidity, but without diabetes mellitus (DM). The study comprises of a 4-week screening period; a 48-week core treatment period, where all participants will receive tirzepatide as background treatment and will be randomized to one of the 4 treatment arms; a 24-week treatment extension period, where participants will stop treatment with tirzepatide and a 24-week post-treatment follow-up (FU) period.

Detailed Description

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Conditions

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Obesity Overweight Overweight With One Weight Related Comorbidity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Placebo + Tirzepatide

Participants will receive RO7204239 matching placebo via subcutaneous (SC) injection every 4 weeks (Q4W) for the core treatment period of 48 weeks and the treatment extension period of 24 weeks. Participants will also receive tirzepatide, as a background therapy, up-titrated according to the approved tirzepatide prescribing information, SC, every week (QW) during the core treatment period of 48 weeks.

Group Type ACTIVE_COMPARATOR

RO7204239

Intervention Type DRUG

RO7204239 or matching placebo will be administered as per the schedule specified in the arms.

RO7204239 Matching Placebo

Intervention Type DRUG

RO7204239 matching placebo will be administered as per the schedule specified in the arm.

Tirzepatide

Intervention Type DRUG

Tirzepatide will be administered as per the schedule specified in the arms.

RO7204239 low dose + Tirzepatide

Participants will receive RO7204239, low dose, SC, Q4W for the core treatment period of 48 weeks. During the treatment extension period participants will receive placebo for the period of 24 weeks. Participants will also receive tirzepatide, as a background therapy, up-titrated according to the approved tirzepatide prescribing information, SC, QW during the core treatment period of 48 weeks.

Group Type EXPERIMENTAL

RO7204239

Intervention Type DRUG

RO7204239 or matching placebo will be administered as per the schedule specified in the arms.

Tirzepatide

Intervention Type DRUG

Tirzepatide will be administered as per the schedule specified in the arms.

RO7204239 medium dose + Tirzepatide

Participants will receive RO7204239, medium dose, SC, Q4W for the core treatment period of 48 weeks. During the treatment extension period participants will receive placebo for the period of 24 weeks. Participants will also receive tirzepatide, as a background therapy, up-titrated according to the approved tirzepatide prescribing information, SC, QW during the core treatment period of 48 weeks.

Group Type EXPERIMENTAL

RO7204239

Intervention Type DRUG

RO7204239 or matching placebo will be administered as per the schedule specified in the arms.

Tirzepatide

Intervention Type DRUG

Tirzepatide will be administered as per the schedule specified in the arms.

RO7204239 high dose + Tirzepatide

Participants will receive RO7204239, high dose, SC, Q4W along with tirzepatide, given as a background therapy, up-titrated according to the approved tirzepatide prescribing information, SC, QW during the core treatment period of 48 weeks. During the treatment extension period participants will be randomized to receive RO7204239 or matching placebo, SC, Q4W for 24 weeks.

Group Type EXPERIMENTAL

RO7204239

Intervention Type DRUG

RO7204239 or matching placebo will be administered as per the schedule specified in the arms.

Tirzepatide

Intervention Type DRUG

Tirzepatide will be administered as per the schedule specified in the arms.

Interventions

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RO7204239

RO7204239 or matching placebo will be administered as per the schedule specified in the arms.

Intervention Type DRUG

RO7204239 Matching Placebo

RO7204239 matching placebo will be administered as per the schedule specified in the arm.

Intervention Type DRUG

Tirzepatide

Tirzepatide will be administered as per the schedule specified in the arms.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* BMI ≥ 30.0 kilograms per square meter (kg/m²) (additional weight-related comorbidities are not required for inclusion)
* BMI ≥ 27.0 kg/m² and \< 30.0 kg/m² with at least one weight-related comorbidity such as: hypertension, dyslipidemia, obstructive sleep apnea and any cardiovascular disease
* History of at least one self-reported unsuccessful dietary or exercise effort to lose body weight
* Weight stability: self-reported change in body weight less than 5 kilograms (kg) (11 pounds \[lbs\]) within 3 months prior to screening

Exclusion Criteria

* Prior history or diagnosis of DM
* Presence of non-proliferative diabetic retinopathy requiring acute therapy, proliferative diabetic retinopathy or diabetic macular edema
* Have obesity induced by other endocrinologic disorders
* Participation in unbalanced/extreme diets
* Prior or planned surgical treatment for obesity
* Endoscopic and/or device-based therapy for obesity or device removal within 6 months prior to screening
* Have a known clinically significant gastric emptying abnormality
* Have any of the following cardiovascular conditions within 6 months prior to screening: acute myocardial infarction, cerebrovascular accident (stroke), unstable angina, or hospitalization due to congestive heart failure (CHF)
* Have evidence of significant active, uncontrolled cardiovascular, autoimmune, endocrine, renal, hepatic, dermatological, chronic respiratory or gastrointestinal disease, a neurological or psychiatric condition, or a history of any neuromuscular disorder or autoimmune/inflammatory disorders that may cause muscle wasting or medical condition capable of constituting a risk when taking the study medication or interfering with the interpretation of data, as judged by the investigator at screening
* Have evidence of a significant, uncontrolled endocrine abnormality
* Have a history of an active or untreated malignancy or are in remission from a clinically significant malignancy
* Have evidence of a significant, active autoimmune abnormality
* Have anemia
* Have signs and symptoms of any other liver disease other than nonalcoholic fatty liver disease
* Have an average weekly alcohol intake that exceeds 21 units per week (males) and 14 units per week (females)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hoffmann-La Roche

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Trials

Role: STUDY_DIRECTOR

Hoffmann-La Roche

Locations

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Pinnacle Research Group

Anniston, Alabama, United States

Site Status

Encompass Clinical Research

Spring Valley, California, United States

Site Status

K2 Medical Research South Orlando, LLC

Orlando, Florida, United States

Site Status

Rophe Adult and Pediatric Medicine/SKYCRNG

Union City, Georgia, United States

Site Status

Accellacare of Duly Health and Care

Oak Lawn, Illinois, United States

Site Status

Rochester Clinical Research

Rochester, New York, United States

Site Status

Accellacare of Salisbury

Salisbury, North Carolina, United States

Site Status

Accellacare of Piedmont Healthcare

Statesville, North Carolina, United States

Site Status

Accellacare of Wilmington, LLC

Wilmington, North Carolina, United States

Site Status

Accellacare Research of Winston Salem

Winston-Salem, North Carolina, United States

Site Status

NexGen Research

Lima, Ohio, United States

Site Status

Accellacare of Bristol/ Internal Medicine & Pediatrics

Bristol, Tennessee, United States

Site Status

Accellacare of Knoxville

Knoxville, Tennessee, United States

Site Status

Clinical Research Associates

Nashville, Tennessee, United States

Site Status

Texas Diabetes & Endocrinology, P.A.

Austin, Texas, United States

Site Status

Juno Research, LLC

Houston, Texas, United States

Site Status

Consano Clinical Research

Shavano Park, Texas, United States

Site Status

Velocity Clinical Research (Impact Research Institute)

Waco, Texas, United States

Site Status

Manassas Clinical Research Center

Manassas, Virginia, United States

Site Status

Centrum Badan Klinicznych PI-House sp. z o.o.

Gdansk, Pomeranian Voivodeship, Poland

Site Status

Centrum Medyczne ALL-MED

Krakow, , Poland

Site Status

Ekamed sp. z o.o.

Lublin, , Poland

Site Status

ETG Warszawa

Warsaw, , Poland

Site Status

Universidad de Sevilla - Hospital Universitario Virgen Macarena

Seville, Barcelona, Spain

Site Status

Hospital Universitario Marques de Valdecilla

Santander, Cantabria, Spain

Site Status

Hospital Vithas Nisa Sevilla

Castilleja de la Cuesta, Granada, Spain

Site Status

Hospital San Rafael A Coruna

A Coruña, LA Coruna, Spain

Site Status

Hospital Universitari Vall d'Hebron

Barcelona, , Spain

Site Status

Hospital Universitario Virgen de la Victoria

Málaga, , Spain

Site Status

Fylde Coast Clinical Research at Layton Medical Centre

Blackpool, Lancashire, United Kingdom

Site Status

University Hospitals of Leicester NHS Trust - Leicester General Hospital (LGH)

Leicester, Leicestershire, United Kingdom

Site Status

Accellacare Yorkshire

Shipley, Yorkshire, United Kingdom

Site Status

Accellacare Warwickshire

Coventry, , United Kingdom

Site Status

Accellacare North London

Northwood, , United Kingdom

Site Status

Accellacare South London

Orpington, , United Kingdom

Site Status

Countries

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United States Poland Spain United Kingdom

Other Identifiers

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2024-519561-22-00

Identifier Type: REGISTRY

Identifier Source: secondary_id

BC45538

Identifier Type: -

Identifier Source: org_study_id