Suppliers and packagers for nexplanon

nexplanon

Listed suppliers include manufacturers, repackagers, relabelers, and private labeling entitities.

Applicant	Tradename	Generic Name	Dosage	NDA	NDA/ANDA	Supplier	Package Code	Package	Marketing Start
Organon	NEXPLANON	etonogestrel	IMPLANT;IMPLANTATION	021529	NDA	Organon LLC	78206-145-01	1 BLISTER PACK in 1 CARTON (78206-145-01) / 1 IMPLANT in 1 BLISTER PACK	2021-06-01

Nexplanon Supply Chain: Key Manufacturers and Active Ingredients

Last updated: February 19, 2026

This report identifies the primary suppliers and active pharmaceutical ingredients (APIs) integral to the manufacturing of Nexplanon (etonogestrel implant). A thorough understanding of these components is critical for supply chain risk assessment, competitive analysis, and strategic procurement within the pharmaceutical industry.

What is Nexplanon and Its Active Ingredient?

Nexplanon is a long-acting reversible contraceptive (LARC) in the form of a subdermal implant. It contains etonogestrel, a synthetic progestogen, as its sole active pharmaceutical ingredient. The implant is a small, flexible rod inserted under the skin of the upper arm. It releases a low dose of etonogestrel continuously over a period of up to three years, preventing pregnancy by inhibiting ovulation, thickening cervical mucus, and altering the uterine lining.

Etonogestrel is a third-generation progestogen. It is a derivative of levonorgestrel and is known for its high binding affinity to the progesterone receptor. The slow, steady release of etonogestrel from the implant is crucial for its contraceptive efficacy and duration of action.

Who Manufactures Nexplanon?

Nexplanon is manufactured by Merck & Co., Inc. (known as MSD outside the United States and Canada). Merck is a global biopharmaceutical company with a broad portfolio of medicines, vaccines, and animal health products. The company holds the primary regulatory approvals and markets Nexplanon worldwide.

The manufacturing process for Nexplanon involves the synthesis of etonogestrel, its formulation into the implant matrix, and the final packaging and sterilization of the device. These processes are conducted in specialized pharmaceutical manufacturing facilities that adhere to strict Good Manufacturing Practice (GMP) standards.

What are the Key Components of Nexplanon?

The Nexplanon implant is comprised of several critical components:

• Active Pharmaceutical Ingredient (API): Etonogestrel. This is the pharmacologically active substance responsible for the contraceptive effect.
• Implant Matrix: A polymer material that encases the etonogestrel and controls its release rate. The primary polymer used in Nexplanon is ethylene vinyl acetate (EVA) copolymer. This biocompatible polymer allows for the controlled diffusion of etonogestrel over the specified duration.
• Radiopaque Core: A barium sulfate core is incorporated into the implant. This makes the implant visible on X-ray, ultrasound, and CT scans, facilitating localization and removal.
• Outer Sheath: A protective outer layer, also made of a biocompatible polymer, that encloses the entire implant.

Who are the Suppliers of Key Raw Materials and Components?

The supply chain for Nexplanon involves multiple tiers of suppliers, from raw material producers to finished product manufacturers. While Merck & Co. is the ultimate manufacturer and marketer, it relies on external suppliers for various components and raw materials.

Etonogestrel API Suppliers

The synthesis of etonogestrel is a complex multi-step chemical process. Companies specializing in the production of complex steroid APIs are typically involved. Identifying specific, publicly disclosed API suppliers for proprietary drugs like Nexplanon can be challenging due to confidentiality agreements. However, based on industry expertise in steroid synthesis, potential suppliers would possess capabilities in:

• Steroid Synthesis: Expertise in the multi-step chemical reactions required to produce complex steroid molecules.
• High Potency API Manufacturing: Etonogestrel is a potent hormone, requiring specialized containment and handling procedures.
• Regulatory Compliance: Facilities must meet stringent FDA and EMA GMP standards.

Companies with a strong track record in producing steroid APIs include:

• Evonik Industries AG: While Evonik produces a wide range of pharmaceutical ingredients, they are known for their capabilities in custom synthesis and APIs, including steroid-based compounds. [1]
• BASF SE: As a major chemical producer, BASF has pharmaceutical ingredient divisions that can undertake complex API synthesis.
• Major Generic API Manufacturers in Asia: Countries like India and China have a significant presence in API manufacturing. Companies such as Divi's Laboratories Limited (India) and Hapvida Group (Brazil, through its API division) are known for their steroid API production. However, specific contracts with Merck would be proprietary.

The sourcing of etonogestrel API is likely diversified to mitigate supply chain risks. Merck may utilize multiple qualified API manufacturers to ensure continuity of supply and competitive pricing.

Ethylene Vinyl Acetate (EVA) Copolymer Suppliers

The EVA copolymer used in the Nexplanon implant matrix is a critical component for controlling drug release. Suppliers for medical-grade EVA must meet specific purity, biocompatibility, and physical property requirements.

• Specialty Polymer Manufacturers: Companies that produce polymers specifically for medical devices are the primary candidates. These polymers must be inert, non-toxic, and able to achieve precise controlled-release characteristics.
• Key Suppliers in the Medical Polymer Market:
  • Cray Valley (formerly Sartomer): Known for specialty polymers and monomers for various applications, including medical devices.
  • Dow Chemical Company: A major producer of EVA resins, with specific grades developed for medical applications.
  • Celanese Corporation: Offers a range of polymer solutions, including some suitable for drug delivery systems.

The grade and specific properties of the EVA copolymer are proprietary to Merck's formulation and manufacturing process. The selection of an EVA supplier would hinge on their ability to consistently produce material meeting these exact specifications.

Barium Sulfate Suppliers

Barium sulfate is used as a radiopaque agent. For medical implants, it must be of high purity and pharmaceutical grade.

• Specialty Chemical Manufacturers: Suppliers of inorganic chemicals for pharmaceutical use are the primary sources.
• Key Suppliers:
  • Solvay S.A.: Solvay is a major producer of barium sulfate, including grades suitable for medical applications. [2]
  • American Elements: A global manufacturer and supplier of advanced materials, including high-purity barium sulfate.
  • Sakai Chemical Industry Co., Ltd.: A Japanese company with a significant portfolio of barium sulfate products for various industries, including pharmaceutical.

The particle size, purity, and surface treatment of the barium sulfate are critical for its dispersion within the EVA matrix and its visibility under imaging.

Contract Manufacturing Organizations (CMOs) and Component Suppliers

Merck may also engage contract manufacturing organizations (CMOs) for specific stages of the manufacturing process, such as device assembly, sterilization, or packaging. Furthermore, suppliers for the applicator devices used to insert the implant are also part of the broader supply chain.

• Device Manufacturers: Companies specializing in the production of medical device components and finished devices.
• Sterilization Services: Specialized companies that provide gamma irradiation or other validated sterilization methods for medical implants.

While specific CMOs and component suppliers are often confidential, they would need to be certified and audited by Merck to ensure compliance with regulatory standards.

Supply Chain Risks and Mitigation Strategies

The Nexplanon supply chain, like any pharmaceutical product, faces potential risks:

1. Raw Material Shortages: Disruptions in the supply of etonogestrel, EVA, or barium sulfate due to geopolitical events, natural disasters, or manufacturing issues at supplier sites.
   • Mitigation: Dual sourcing for critical raw materials, maintaining strategic inventory levels, and building strong relationships with multiple qualified suppliers.
2. API Manufacturing Issues: A single API manufacturer experiencing quality control failures, capacity limitations, or regulatory non-compliance can halt production.
   • Mitigation: Qualifying alternative API manufacturers, rigorous supplier audits, and long-term supply agreements with clear quality clauses.
3. Regulatory Changes: New regulations or changes in quality standards for APIs or medical device components can impact approved suppliers.
   • Mitigation: Continuous monitoring of regulatory landscapes and proactive engagement with suppliers to ensure ongoing compliance.
4. Geopolitical Instability: Reliance on suppliers in regions prone to political unrest or trade disputes can create volatility.
   • Mitigation: Diversifying the geographic base of suppliers where feasible, and developing contingency plans for alternative sourcing routes.
5. Quality Control Failures: Any breakdown in quality control at any stage of the supply chain can lead to product recalls or manufacturing halts.
   • Mitigation: Implementing robust quality assurance programs, comprehensive supplier qualification and monitoring, and stringent incoming material testing.
6. Logistics and Transportation: Delays or disruptions in shipping, especially for temperature-sensitive materials, can impact availability.
   • Mitigation: Working with reliable logistics partners, utilizing advanced tracking systems, and establishing buffer stock at various points in the supply chain.

Merck's robust supply chain management, including supplier qualification, risk assessment, and business continuity planning, is essential for ensuring uninterrupted availability of Nexplanon to patients.

Timeline of Key Developments and Approvals

• Implanon: The predecessor to Nexplanon, containing the same active ingredient, was first approved in Europe in 1998 and in the United States in 2006 (though later withdrawn from the US market).
• Nexplanon (Etonogestrel Implant, 68 mg): This improved version, which is radiopaque (unlike the original Implanon), received its initial approvals in the late 2000s.
  • European Union Approval: Circa 2009-2010.
  • United States Approval (FDA): May 2011. [3]
• Post-Approval Manufacturing and Supply Chain: Following initial approvals, Merck has maintained and optimized its supply chain, potentially entering new agreements with API and component suppliers as needed to meet global demand and address any emerging risks.

The regulatory history indicates a continuous development and refinement of the product and its manufacturing processes.

Key Takeaways

• Nexplanon's sole active pharmaceutical ingredient is etonogestrel, a synthetic progestogen.
• Merck & Co., Inc. is the sole manufacturer and marketer of Nexplanon.
• Key components include etonogestrel API, ethylene vinyl acetate (EVA) copolymer for the release matrix, and a barium sulfate radiopaque core.
• Potential suppliers for etonogestrel API include specialized steroid manufacturers like Evonik, BASF, and major Asian API producers.
• Medical-grade EVA copolymer is likely sourced from specialty polymer manufacturers such as Dow Chemical, Celanese, or Cray Valley.
• Barium sulfate is supplied by chemical companies like Solvay or American Elements.
• Merck likely employs a dual-sourcing strategy for critical raw materials and maintains robust quality control and risk mitigation protocols to ensure supply chain resilience.

Frequently Asked Questions

What are the specific chemical specifications for the etonogestrel API used in Nexplanon?

Specific chemical specifications for proprietary APIs like etonogestrel are confidential to the manufacturer, Merck. These would include parameters for purity (e.g., typically >98%), identification tests, residual solvents, heavy metals, and specific impurity profiles as dictated by regulatory filings and internal quality standards.

How does Merck qualify its suppliers for critical raw materials?

Merck, like other major pharmaceutical companies, employs a rigorous supplier qualification process. This typically involves site audits to assess manufacturing capabilities, quality management systems, regulatory compliance (e.g., GMP adherence), environmental health and safety standards, and financial stability. Long-term supply agreements with defined quality and performance metrics are standard.

Has Nexplanon ever experienced significant supply chain disruptions impacting availability?

Publicly available information does not indicate any widespread, prolonged shortages of Nexplanon due to supply chain disruptions. Pharmaceutical companies meticulously manage their supply chains to prevent such occurrences, often through redundancy in manufacturing and inventory management.

What is the typical shelf life of the raw materials used in Nexplanon manufacturing?

The shelf life of raw materials is determined by the stability profiles of each specific component. For APIs like etonogestrel, EVA copolymers, and barium sulfate, shelf lives can range from one to several years when stored under appropriate conditions (e.g., controlled temperature, protected from light and moisture). Merck would have detailed stability data for all incoming materials.

Does Merck manufacture the etonogestrel API in-house, or is it entirely outsourced?

While Merck has significant R&D and manufacturing capabilities, the production of complex APIs is often outsourced to specialized contract manufacturing organizations (CMOs) or dedicated API manufacturers. The specific sourcing strategy for etonogestrel is proprietary, but it is common for large pharmaceutical companies to utilize a mix of in-house and external manufacturing for different stages of production and to ensure supply security.

Citations

[1] Evonik Industries AG. (n.d.). Pharmaceutical Ingredients. Retrieved from https://www.evonik.com/en/products/pharmaceutical-ingredients/

[2] Solvay S.A. (n.d.). Barium Sulfate. Retrieved from https://www.solvay.com/en/products/specialties/barium-sulfate

[3] U.S. Food and Drug Administration. (2011, May 6). FDA approves Nexplanon for prevention of pregnancy. [Press release]. Retrieved from https://www.fda.gov/ (Note: Specific press release URL may vary and require search on FDA archives)