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Cofrogliptin and Linagliptin as add-on Therapy to Insulin in Type 2 Diabetes

Effectiveness and Safety of Cofrogliptin and Linagliptin as add-on Therapy to Insulin in Chinese Adults With Type 2 Diabetes Mellitus: a Multicenter, Prospective Real-world Study (COLOR-REAL)

Status
Not yet recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07198932
Acronym
COLOR-REAL
Enrollment
594
Registered
2025-09-30
Start date
2025-10-01
Completion date
2027-12-31
Last updated
2025-09-30

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

Conditions

Type 2 Diabetes

Keywords

real-world study, cofrogliptin, DPP-4i, insulin

Brief summary

This study is a multicenter, prospective, non-interventional real-world study to evaluate the clinical outcomes of biweekly cofrogliptin versus daily linagliptin as an add-on therapy in Chinese adult T2D patients.

Detailed description

About 43 hospitals from different parts of China will take part in this study. Patients aged ≥18 years who have been previously treated with a stable dose of insulin and no more than three classes of oral antidiabetic drugs (OADs) for at least 12 weeks without adequate glycemic control will be enrolled and assigned to either cofrogliptin once every 2 weeks cohort or linagliptin once-daily cohort based on the prescription. Initiation of cofrogliptin or linagliptin treatment was at the treating physician's discretion. Enrolled participants will undergo routine follow-up for up to 24 weeks. During the follow-up period, data will be collected from face-to-face participant-investigator visits at the beginning of the study (0 weeks, visit 1), early stage (4 weeks, visit 2), mid-stage (12 weeks, visit 3) and at the end of the study (24 weeks, visit 4). Data sources include patient medical records, diaries, self-monitoring of blood glucose (SMBG), and questionnaires. No additional diagnostics, monitoring procedures, or interventions outside of usual clinical practice will be applied to the participants. The project will probably last for about 24 months.

Interventions

DRUGCofrogliptin add to insulin

Patients will be treated with commercially available cofrogliptin according to routine clinical practice at the discretion of the treating physician.

DRUGLinagliptin add to insulin

Patients will be treated with commercially available linagliptin according to routine clinical practice at the discretion of the treating physician.

Sponsors

Yanbing Li
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

1. Sign the informed consent form. 2. Aged ≥18 years. 3. Diagnosed with type 2 diabetes mellitus (meeting the 1999 WHO diagnostic criteria). 4. Recently tested HbA1c 7%-9% and FPG ≤11 mmol/L, with stable treatment using insulin ± OADs for at least 12 weeks prior to enrollment. Insulin regimens are limited to: basal insulin once daily or once weekly, premixed insulin once or twice daily, or IDegAsp once or twice daily. OAD classes are limited to metformin, SGLT2 inhibitors, and α-glucosidase inhibitors and with no more than three agents in total. 5. Willing to start or have already initiated cofrogliptin or linagliptin treatment (at the physician's discretion in accordance with clinical practice). The treatment decision is independent of study enrollment, must be made before signing the informed consent, and cofrogliptin or linagliptin initiation must occur either within 2 weeks before or within 2 weeks after signing the informed consent.

Exclusion criteria

1. Allergic to the study drug. 2. Diagnosed with type 1 diabetes. 3. Unable to comply with study-specific procedures. 4. Current or planned pregnant, or currently breastfeeding. 5. With any other situation judged by the investigator, that is unsuitable for participation in this trial.

Design outcomes

Primary

MeasureTime frame
Change in HbA1cfrom baseline to 24 weeks

Secondary

MeasureTime frameDescription
Change in insulin dosefrom baseline to 24 weeksunits/day
Change in PPGfrom baseline to 24 weeksmmol/L
Change in HbA1cfrom baseline to 12 weeks
Reaching of HbA1c target (defined as HbA1c less than 7%)at 24 weeksPercentage point
Change in FPGfrom baseline to 24 weeksmmol/L
Change in fasting C peptidefrom baseline to 24 weeksng/mL
Change in body weightfrom baseline to 24 weeksKg
Overall safety, consisting of adverse events (AEs), serious adverse events (SAEs), adverse events of special interestfrom baseline to 24 weeks

Other

MeasureTime frameDescription
Drug adherenceat 24 weeksmeasured by pill counts
Drug persistenceat 24 weeksdefined as the proportion of patients who continued to use their index medications
Diabetes Treatment Satisfaction Questionnaire status (DTSQs)at baseline, 12 weeks and 24 weeksquestionnaire scores
Short-Form 36 Health Survey (SF-36)at baseline, 12 weeks and 24 weeksquestionnaire scores

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026