Skip to content

A Clinical Study to Evaluate the Efficacy, Safety, and Tolerability of TERN-601 in Adults With Overweight or Obesity

A Phase 2 Study to Evaluate the Efficacy, Safety, and Tolerability of TERN-601 in Adults With Overweight or Obesity

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06854952
Acronym
FALCON
Enrollment
167
Registered
2025-03-03
Start date
2025-03-07
Completion date
2025-09-19
Last updated
2026-08-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Overweight or Obesity

Keywords

overweight, obesity, obese, glucagon-like peptide-1 receptor agonist, GLP-1 receptor agonist, GLP-1

Brief summary

This is a Phase 2a multicenter, randomized, double-blind, placebo-controlled clinical trial studying the efficacy, safety, and tolerability of orally administered TERN-601 in adults with overweight or obesity.

Interventions

DRUGTERN-601

Investigational drug

OTHERMatching Placebo

Matching placebo

Sponsors

Terns, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: 1. Female or male aged 18 to 75 years 2. Body mass index (BMI) of: 1. ≥ 30 kg/m\^2 to \< 50 kg/m\^2 OR 2. ≥ 27 kg/m\^2 to \< 30 kg/m\^2 with at least 1 weight-related comorbidity 3. HbA1c \< 6.5% 4. Stable self-reported body weight for at least 3 months prior to study (\< 5% body weight gain or loss) Key

Exclusion criteria

1. Have diabetes mellitus 2. Have obesity induced by medication or other diagnosed endocrinologic disorders 3. Have had or are planning surgical treatment or device-based therapy for obesity 4. Lifetime history of suicide attempt

Design outcomes

Primary

MeasureTime frameDescription
Percent Change in Body Weight12 weeksPercent change (%) in body weight from baseline to Week 12

Secondary

MeasureTime frameDescription
Change in Body Weight (kg)12 weeksChange in body weight (kg) from baseline to Week 12
≥ 5% Weight Loss12 weeksParticipants achieving ≥ 5% weight loss

Countries

United States

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
21 Participants
Age, Categorical
Between 18 and 65 years
146 Participants
Age, Continuous50.2 Years
STANDARD_DEVIATION 13.56
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
38 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
26 Participants
Sex: Female, Male
Female
26 Participants
Sex: Female, Male
Male
7 Participants
Weight (kg)101.16 kg
STANDARD_DEVIATION 18.075

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 330 / 340 / 340 / 330 / 33
other
Total, other adverse events
23 / 3325 / 3427 / 3426 / 3317 / 33
serious
Total, serious adverse events
0 / 330 / 341 / 342 / 330 / 33

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 11, 2026