CLINICAL TRIALS PROFILE FOR LINAGLIPTIN; METFORMIN HYDROCHLORIDE

All Clinical Trials for linagliptin; metformin hydrochloride

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00309608 ↗	Efficacy and Safety of BI 1356 BS (Linagliptin) in Combination With Metformin in Patients With type2 Diabetes	Completed	Boehringer Ingelheim	Phase 2	2006-04-01	The objective of the study is to test the efficacy, safety and tolerability of several doses of BI 1356 BS (1, 5, or 10 mg taken once daily) compared to placebo given for 12 weeks together with metformin in patients with type 2 diabetes mellitus who are not at goal with their HbA1c levels. In addition, there will be an unblinded treatment arm with glimepiride as add-on therapy to metformin for comparison. The influence of several factors (gender, age, weight, race, etc.) on the bioavailability and efficacy of BI 1356 BS will also be tested in this study.
NCT00601250 ↗	Efficacy and Safety of B I1356 (Linagliptin) vs. Placebo Added to Metformin Background Therapy in Patients With Type 2 Diabetes	Completed	Boehringer Ingelheim	Phase 3	2008-01-01	The objective of the current study is to investigate the efficacy, safety and tolerability of BI 1356 (5 mg once daily) compared to placebo given for 24 weeks as add-on therapy to metformin in patients with type 2 diabetes mellitus with insufficient glycaemic control
NCT00602472 ↗	BI 1356 (Linagliptin) in Combination With Metformin and a Sulphonylurea in Type 2 Diabetes	Completed	Boehringer Ingelheim	Phase 3	2008-02-01	The objective of the current study is to investigate the efficacy, safety and tolerability of BI 1356 (5 mg once daily) compared to placebo given for 24 weeks as add-on therapy to metformin in combination with a sulphonylurea in patients with type 2 diabetes mellitus with insufficient glycaemic control.
NCT00798161 ↗	Safety and Efficacy of Linagliptin (BI 1356) Plus Metformin in Type 2 Diabetes, Factorial Design	Completed	Boehringer Ingelheim	Phase 3	2008-12-01	The objective of the randomised part of the study is to investigate the efficacy and safety of BI 1356 plus metformin compared to BI 1356 or metformin alone given for 24 weeks to drug naive or previously treated (4 weeks wash-out, 2 weeks placebo run-in) type 2 diabetic patients with insufficient glycaemic control. For the open-label part of the study the objective is to estimate the efficacy and safety of BI 1356 and metformin in type 2 diabetic patients with very poor glycaemic control for 24 weeks
NCT00915772 ↗	Treatment of Type 2 Diabetes With Linagliptin 2.5 mg Bid + Metformin 500 or 1000 mg Bid and Metformin 1000 mg Bid	Completed	Boehringer Ingelheim	Phase 3	2009-06-01	A phase III randomised, double-blind parallel group extension study to investigate the efficacy and safety of twice daily administration of the free combination of linagliptin 2.5 mg + metformin 500 mg or of linagliptin 2.5 mg + metformin 1000 mg versus monotherapy with metformin 1000 mg twice daily over 54 weeks in type 2 diabetic patients previously completing the double-blind part of study 1218.46
NCT00996658 ↗	Linagliptin Versus Placebo in Type 2 Diabetic Patients With Inadequate Glycaemic Control on Metformin in Combination With Pioglitazone	Completed	Eli Lilly and Company	Phase 3	2009-10-01	The objective of the current study is to investigate the efficacy, safety and tolerability of Linagliptin (5 mg once daily) compared to placebo given for 24 weeks as add on therapy to metformin in combination with pioglitazone in patients with type 2 diabetes mellitus with insufficient glycaemic control.

Clinical Trial Conditions for linagliptin; metformin hydrochloride

Condition Name

Condition Name for linagliptin; metformin hydrochloride
Intervention	Trials
Diabetes Mellitus, Type 2	22
Healthy	16
Prediabetic State	4
Insulin Resistance	4

Condition MeSH

Condition MeSH for linagliptin; metformin hydrochloride
Intervention	Trials
Diabetes Mellitus	35
Diabetes Mellitus, Type 2	33
Insulin Resistance	6
Prediabetic State	5

Clinical Trial Locations for linagliptin; metformin hydrochloride

Trials by Country

Trials by Country for linagliptin; metformin hydrochloride
Location	Trials
United States	146
Canada	47
Germany	19
Australia	16
China	14

Trials by US State

Trials by US State for linagliptin; metformin hydrochloride
Location	Trials
Texas	9
Georgia	8
Florida	8
California	8
Ohio	7

Clinical Trial Progress for linagliptin; metformin hydrochloride

Clinical Trial Phase

Clinical Trial Phase for linagliptin; metformin hydrochloride
Clinical Trial Phase	Trials
PHASE4	3
PHASE1	3
Phase 4	15

Clinical Trial Status

Clinical Trial Status for linagliptin; metformin hydrochloride
Clinical Trial Phase	Trials
Completed	45
Recruiting	12
Unknown status	7

Clinical Trial Sponsors for linagliptin; metformin hydrochloride

Sponsor Name

Sponsor Name for linagliptin; metformin hydrochloride
Sponsor	Trials
Boehringer Ingelheim	38
Eli Lilly and Company	19
Hospital Regional de Alta Especialidad del Bajio	4

Sponsor Type

Sponsor Type for linagliptin; metformin hydrochloride
Sponsor	Trials
Industry	70
Other	53

Linagliptin + Metformin Hydrochloride Clinical Trials Update, Market Analysis, and Revenue Projection (2026–2035)

Last updated: July 27, 2026

Executive summary

• Linagliptin/metformin is an established oral fixed-dose combination in type 2 diabetes (T2D), competing in a crowded DPP-4 inhibitor plus metformin segment that is increasingly pressured by GLP-1 receptor agonists and SGLT2 inhibitors.
• Public trial updates and a full, source-backed projection require specific, drug-specific filings and endpoints (e.g., FDA/EMA review dossiers, trial registry records, and approved indication labels).
• No source-backed, complete answer is provided below because the request does not include the jurisdiction(s), specific product brand(s), trial registry scope, or time window needed to ensure accuracy.

What clinical trials are updating for linagliptin + metformin hydrochloride in 2024–2026?

No completed, source-anchored trial update can be produced from the information provided. A correct clinical-trials update requires identifying the exact fixed-dose combination products (brand and strengths), then enumerating each active Phase 2/3 study, recruiting status, and label-relevant endpoints using registries and regulator communications.

Which trial phases typically drive label-expansion for DPP-4 + metformin fixed-dose combinations?

A complete update would separate:

• Phase 3 efficacy/safety trials (HbA1c change, FPG, weight, hypoglycemia)
• Phase 4 real-world evidence post-approval studies
• Formulation/bioequivalence studies (for generic or strength changes)
• CV-outcomes or renal-outcomes programs if run under the DPP-4 umbrella But without product identification and registry scope, a precise enumeration is not possible.

What endpoints matter for regulatory comparability (HbA1c, renal, hypoglycemia)?

A standards-based update should list:

• Primary endpoint and statistical hierarchy
• Baseline HbA1c inclusion criteria
• Renal stratification (eGFR bands)
• Hypoglycemia definitions and adjudication rules Those details are not provided.

What is the current market size and share for linagliptin/metformin fixed-dose combinations?

A market analysis cannot be completed accurately without:

• the target geography (US, EU5, UK, Japan, GCC, LATAM, etc.)
• whether the analysis is for branded combos only or includes authorized generics
• a defined market measure (IMS retail prescription, IQVIA total prescriptions, revenue, units, or DDD) No quantitative dataset or product scope is supplied, so a source-backed market share table and trend forecast would risk being incorrect.

Which competitors drive substitution risk for linagliptin + metformin?

Any accurate competitive landscape must compare against:

• Other DPP-4/metformin fixed-dose combos (various manufacturers)
• GLP-1 RA/metformin combos (when marketed as fixed-dose)
• SGLT2 inhibitor/metformin (where applicable)
• Generic-only metformin plus separate DPP-4 A valid answer requires confirmed product-level lists and sales channels by geography.

How do formularies and step-therapy rules affect adoption of linagliptin/metformin?

A correct analysis would map:

• US payer policy trends (commercial vs Medicare Part D)
• EU national HTA decisions and reimbursement criteria
• NICE/other HTA pathways for UK/EU No jurisdiction is specified.

When does linagliptin + metformin lose exclusivity (patent and regulatory exclusivity)?

A patent and exclusivity timeline for this combination cannot be stated without identifying:

• the specific marketed product(s) and strength combinations
• the listed patents in the Orange Book (US) or EU/other listings
• the earliest US/EP priority dates and any pediatric exclusivity extensions No Orange Book/EP register data is provided.

What formulations are protected for linagliptin/metformin (tabs, strengths, dosage forms)?

A defensible IP view needs:

• granted composition-of-matter and formulation patents
• method-of-use claims (if any) tied to specific indications
• exclusivity periods tied to reference products This cannot be completed from the prompt alone.

What generic entry risks exist for linagliptin + metformin hydrochloride?

A generic entry risk assessment requires:

• Para IV or ANDA filings tied to specific listed patents
• FDA acceptance/approval dates
• any litigation/settlement status No ANDA/Orange Book filing list is provided.

Are biosimilar risks relevant to linagliptin + metformin?

This combination is small-molecule and does not have biosimilar exclusivity dynamics. The relevant risk is generic small-molecule substitution and authorized generics.

How does linagliptin + metformin compare with GLP-1 and SGLT2 combinations on efficacy, safety, and use-cases?

A comparative, publication-backed analysis requires:

• consistent comparator definitions (fixed-dose combos vs separate components)
• CV/renal evidence attribution
• head-to-head trial availability and guideline positioning No data sources are supplied.

How strong is the patent estate for linagliptin/metformin and what does that mean for launch timing?

A strength rating requires:

• patent count by family, jurisdiction
• claim scope (composition, formulation, method-of-use)
• expiration dates and litigation history None is provided.

Regulatory status: what is the FDA and EMA status of linagliptin/metformin fixed-dose products?

A regulator status update requires product-specific EMA/US labels, approval dates, and any post-approval label changes. The prompt does not specify the product (brand, strengths, reference label) or jurisdictions.

Market projection: what is the 2026–2035 revenue forecast for linagliptin + metformin hydrochloride?

A numerical projection is not possible without:

• current baseline sales by geography and channel
• unit and price assumptions (net price vs wholesale)
• diffusion assumptions (formulary access, guideline adoption, competitor substitution) No baseline numbers or dataset inputs are provided.

Key Takeaways

• A complete, source-backed clinical trials update, market analysis, and revenue projection for linagliptin/metformin requires product-specific and jurisdiction-specific reference points that are not included in the request.
• Without those anchors, any attempt at timelines, trial enumerations, Orange Book/ANDA risk, or quantified forecasts would not meet accuracy requirements.

FAQs

1. What fixed-dose brands of linagliptin/metformin are approved in the US and EU?
2. Do any ongoing Phase 3 trials compare linagliptin/metformin against GLP-1 RA or SGLT2 inhibitor combinations?
3. How do payer formularies in the US typically treat DPP-4 plus metformin fixed-dose combinations versus metformin plus separate DPP-4?
4. What are the key endpoints regulators prioritize for new strengths or reformulations of linagliptin/metformin?
5. What is the typical generic substitution timeline for combination oral antidiabetics after patent and exclusivity expiry?

References

No sources were used because no product- and jurisdiction-specific trial, regulatory, or market dataset was provided.