Unity Subcutaneous Infusion System for Remodulin

K191313 · DEKA Research & Development · QJY · Feb 21, 2020 · General Hospital

Device Facts

• Record ID: K191313
• Device Name: Unity Subcutaneous Infusion System for Remodulin
• Applicant: DEKA Research & Development
• Product Code: QJY · General Hospital
• Decision Date: Feb 21, 2020
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 880.5725
• Device Class: Class 2
• Attributes: Therapeutic

Indications for Use

The Unity Subcutaneous Infusion System (the Unity System) is intended for continuous subcutaneous delivery of Remodulin® (treprostinil) Injection for use in adults (greater than 22 years of age).

Device Story

Wearable infusion pump for continuous subcutaneous delivery of Remodulin (treprostinil) to treat pulmonary arterial hypertension (PAH). System comprises reusable pump, disposable cassette reservoir, remote interface, and accessories. Specialty pharmacy aseptically fills cassettes; patient uses pump to deliver drug at programmed rates. Pump utilizes micro-dosing mechanism with acoustic volume sensor (AVS) feedback for delivery accuracy. Used in home and professional healthcare environments. Healthcare provider programs pump; patient wears device. Output includes drug delivery and various system alerts (e.g., occlusion, battery, cassette status). Benefits include automated, accurate, continuous drug administration, reducing manual intervention and improving patient convenience via pharmacy-filled cassettes.

Clinical Evidence

No clinical data. Evidence consists of non-clinical performance testing, including safety assurance case, drug stability studies, container closure integrity, antimicrobial effectiveness, human factors evaluation, and biocompatibility testing per ISO 10993-1.

Technological Characteristics

Microprocessor-controlled micro-dosing pump; acoustic volume sensor (AVS) feedback. Materials: Polycarbonate, Bromobutyl, SEBS, polyurethane, ABS, Aluminum, Acrylic. Dimensions: 6cm x 6cm x 2cm; Weight: 50g. Power: Rechargeable Li-Ion battery. Connectivity: Remote interface. Ingress protection: IP58. Sterilization: Radiation (ISO 11137-1).

Indications for Use

Indicated for continuous subcutaneous delivery of Remodulin (treprostinil) in adults >22 years of age with pulmonary arterial hypertension (PAH).

Regulatory Classification

Identification

An infusion pump is a device used in a health care facility to pump fluids into a patient in a controlled manner. The device may use a piston pump, a roller pump, or a peristaltic pump and may be powered electrically or mechanically. The device may also operate using a constant force to propel the fluid through a narrow tube which determines the flow rate. The device may include means to detect a fault condition, such as air in, or blockage of, the infusion line and to activate an alarm.

Predicate Devices

• Unity Subcutaneous Delivery System for Remodulin (K190182)

Submission Summary (Full Text)

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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo in blue, with the words "U.S. FOOD & DRUG" stacked on top of the word "ADMINISTRATION".

DEKA Research & Development Jason Demers Project Manager 340 Commercial Street Manchester, New Hampshire 03101

Re: K191313

Trade/Device Name: Unity Subcutaneous Infusion System for Remodulin Regulation Number: 21 CFR 880.5725 Regulation Name: Infusion Pump Regulatory Class: Class II Product Code: QJY Dated: May 14, 2019 Received: May 15, 2019

### Dear Jason Demers:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for

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devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely.

For Nikhil Thakur Assistant Director DHT3C: Division of Drug Delivery and General Hospital Devices. and Human Factors OHT3: Office of Gastrorenal, ObGyn, General Hospital and Urology Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

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## Indications for Use

510(k) Number (if known) K191313

Device Name

Unity Subcutaneous Delivery System for Remodulin®

Indications for Use (Describe)

The Unity Subcutaneous Infusion System (the Unity System) is intended for continuous subcutaneous delivery of Remodulin® (treprostinil) Injection for use in adults (greater than 22 years of age).

Type of Use (Select one or both, as applicable)X Prescription Use (Part 21 CFR 801 Subpart D)

| Over-The-Counter Use (21 CFR 801 Subpart C)

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# 510(K) SUMMARY - K191313

#### Submitter Information

| 510(k) Sponsor: | DEKA Research & Development<br>340 Commercial Street<br>Manchester, NH 03101 |
|-----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person | Jason Demers<br>Program Manager<br>DEKA Research & Development Corporation<br>Phone: [phone]<br>Fax: [phone]<br>[e-mail] |
| Date Prepared: | February 21, 2020 |

#### Proposed Device

| Common/Usual Name: | Infusion Pump |
|-------------------------|----------------------------------------------------|
| Trade/Proprietary Name: | Unity Subcutaneous Delivery System for Remodulin® |
| Classification Name: | Infusion Pump |
| Device Classification: | 880.5725 |
| Product Code: | QJY, infusion pump, drug specific, pharmacy-filled |
| Class: | II |
| Device Panel: | General Hospital |

### Predicate Device

Unity Subcutaneous Delivery System for Remodulin® K190182. No reference devices are used in this submission.

#### Device Description

The Unity Subcutaneous Delivery System for Remodulin® (Unity System) is a wearable infusion pump designed to deliver Remodulin® for the treatment of pulmonary arterial hypertension (PAH). It is intended for continuous subcutaneous delivery of FDA-approved Remodulin® (treprostinil) (hereinafter referred to as 'Remodulin' or 'Remodulin (treprostinil)'). NDA 021272. The Unity System consists of several components: a wearable pump assembly, a remote interface, a filling and priming aid, and accessories (e.g., rechargeable batteries, battery charging cable, power adapter). A commercially available subcutaneous infusion set is connected to the pump assembly via a standard Luer connector for the subcutaneous delivery of Remodulin from the Unity System to the patient.

The pump assembly is composed of a reusable pump and a disposable single-use cassette reservoir, which infuses Remodulin subcutaneously into the patient based on an individualized programmed rate. Each disposable cassette may be used for up to 72 hours after attachment to the pump. The Unity System utilizes a micro-dosing pump mechanism supplemented with acoustic volume sensor feedback to ensure delivery accuracy.

Cassettes are identical to those cleared under K190182, with the specialty pharmacy will take the cassettes out of their sterile packaging, cap the cassette and aseptically fill the cassette reservoir through the cassette filling septum following USP 797 Compounding Sterile Preparations. The specialty pharmacy will then package

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these filled cassettes and ship to the intended end user under controlled conditions outlined in the labeling. The pharmacyfilled cassette is intended to be stored (inclusive of shipping item) up to 14-days and is intended to be in use for up to 72hours.

The device is prescription use only.

## Indications for Use

The Unity Subcutaneous Infusion System (the Unity System) is intended for continuous subcutaneous delivery of Remodulin® (treprostinil) Injection for use in adults (greater than 22 years of age).

## Substantial Equivalence Discussion

### Intended Use Comparison

The table below includes a comparison of the intended use between the new device and those of the predicate device:

| Characteristic | Predicate<br>Unity Subcutaneous Delivery<br>System for Remodulin®<br>K190182 | Proposed<br>Unity Subcutaneous Delivery System<br>for Remodulin®<br>K191313 |
|------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|
| Indications for Use | The Unity Subcutaneous Delivery<br>System for Remodulin® (the Unity<br>System) is intended for continuous<br>subcutaneous delivery of<br>Remodulin (treprostinil) injection<br>for use in adults (greater than 22<br>years of age). | No Change |
| Prescription Only or<br>Over the Counter | Prescription Only | No Change |
| Intended Population | Adults (>22 years of age) | No Change |
| Environment of Use | In professional healthcare facility<br>and home healthcare environments | No Change |

#### Discussions of differences in Indications for Use statement

The indications for use statement for the subject device is identical to the predicate device cleared under K190182.

### Discussions of differences in intended population

The intended population is for the subject device is identical to the predicate device cleared under K190182.

The Unity system is indicated for adults (greater than 22 years of age)

#### Discussions of differences in environment of use

The environment of use for the subject device is identical to the predicate device cleared under K190182.

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## Comparison of Technological Characteristics with the Predicate Device

Table 1 compares the characteristics of the predicate device to the proposed device and includes an assessment of differences between them and why the difference between the subject device and predicate device do not introduce new or different questions of safety and effectiveness.

| Characteristic | Predicate<br>Unity Subcutaneous<br>Delivery System for<br>Remodulin®<br>K190182 | Proposed<br>Unity Subcutaneous<br>Delivery System for<br>Remodulin® | Discussion of Differences |
|----------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Mechanism of<br>action | Microprocessor controlled<br>Micro- dosing pump<br>mechanism supplemented<br>with acoustic volume sensor<br>(AVS) feedback for<br>monitoring delivery accuracy. | Same | N/A |
| Infusion Accuracy | ±6% | Same | N/A |
| Maximum Infusion<br>pressure | <16.4 psi (<113 kPa) | Same | N/A |
| Programmable<br>Flow rate ranges | 16 µl/hr to 225 µl/hr with<br>increments of 1 µl/hr | Same | N/A |
| Time to occlusion<br>alarm | Maximum time to occlusion<br>alarm:<br><12 min. at rates ≥ 100 µl/hr<br>within 8 hr, at rates < 100<br>µl/hr | Same | N/A |
| Post-occlusion<br>bolus | <40 µl at all rates. | Same | N/A |
| Characteristic | Predicate<br>Unity Subcutaneous<br>Delivery System for<br>Remodulin®<br>K190182 | Proposed<br>Unity Subcutaneous<br>Delivery System for<br>Remodulin® | Discussion of Differences |
| Alarms & Alerts | • Battery depleted<br>• Battery Low (pump)<br>• Battery Low (remote)<br>• Cassette Depleted<br>• Cassette Problem<br>• Cassette Removed<br>• Depletes Soon<br>• Pump Error<br>• Pump Failure<br>• Occlusion<br>• Delivery Stopped<br>• Basal Not Started<br>• Idle<br>• Software Version Error<br>• Tech<br>• Excessive Noise<br>• No Communication<br>• Message Timeout<br>• Pairing Failed<br>Walkaway | Same | N/A |
| Device Service<br>Life | 3 years | Same | N/A |
| Dimensions &<br>Weight | 6 cm x 6 cm x 2 cm<br>(2.4 in x 2.4 in x 0.4 in)<br>50 g (1.76 oz) | Same | N/A |
| Materials | Cassette fluid path:<br>Polycarbonate, Bromobutyl,<br>SEBS, polyurethane<br><br>Pump: ABS, Polycarbonate,<br>Aluminum<br><br>Cartridge: Polycarbonate,<br>Acrylic, polyurethane<br><br>Filling Aid: PC-ABS | Additional Materials include:<br><br>Cap: Polycarbonate | The new component utilized<br>the same materials used in the<br>predicate and did not introduce<br>new biocompatibility issues.<br>Performance was evaluated to<br>be substantially equivalent. |
| Characteristic | Predicate<br>Unity Subcutaneous<br>Delivery System for<br>Remodulin®<br>K190182 | Proposed<br>Unity Subcutaneous<br>Delivery System for<br>Remodulin® | Discussion of Differences |
| Environment of<br>Use | In professional healthcare<br>facility and home<br>healthcare environments | Same | N/A |
| Ingress protection | IP58 when connected to the<br>reservoir | Same | N/A |
| Power source | Rechargeable Lithium-Ion<br>Battery | Same | N/A |
| Storage Conditions | Temperature:<br>-13°F to 158°F (-25°C to<br>70°C)<br>Non-condensing humidity:<br>up to 90%.<br>Pressure: 500 hPa to 1060 hPa | Same | N/A |
| Operating<br>Conditions | Temperature:<br>41°F to 104°F (5°C to 40°C)<br>Non-condensing humidity:<br>up to 90%<br>Pressure: 700 hPa to 1060 hPa | Same | N/A |
| Remote user<br>feedback | Audible, vibratory | Same | N/A |
| Administration Set | Medtronic Quick-set Infusion<br>Set Medtronic Silhouette and<br>Infusion Set Smiths Medical<br>Cleo 90 Infusion Set | Same | N/A |
| Cassette | Remodulin Unity cassettes, 3<br>ml, User filled | Remodulin Unity cassettes, 3<br>ml, Specialty Pharmacy filled | Cassettes are filled by<br>Specialty Pharmacist and are<br>appropriate for the design of<br>the infusion pump. |
| Expiration –<br>Cassette | User Fill, 6 Months from date<br>of manufacture | Pharmacy-Fill, 14 Days | The differences in cassette<br>expiration were evaluated<br>through container closure<br>integrity, antimicrobial<br>effectiveness and stability<br>testing. |
| Characteristic | Predicate<br>Unity Subcutaneous<br>Delivery System for<br>Remodulin®<br>K190182 | Proposed<br>Unity Subcutaneous<br>Delivery System for<br>Remodulin® | Discussion of Differences |
| End User<br>Packaging - | Unfilled cassette without luer<br>lock fluid path closure, placed<br>in vacuum formed tray with<br>Tyvek lid and then Gamma<br>sterilized | Aseptically filled cassette with<br>female luer lock fluid path<br>closure, placed in plastic<br>clamshell tray and sealed in<br>foil pouch | The predicate device provides<br>a terminally sterilized unfilled<br>cassette inside the sterile<br>barrier provided by the<br>vacuum formed tray and<br>Tyvek lid. The pharmacy-<br>filled cassette provides a<br>closed fluid pathway that was<br>terminally sterilized prior to<br>being aseptically filled and<br>repackaged. The differences<br>in packaging were evaluated<br>through performance, sterility,<br>container closure integrity and |

### Table 1. Comparison of Predicate and Proposed Devices

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# Non-Clinical/ Performance Testing:

The following performance data/non-clinical testing was provided in support of the substantial equivalence determination for the Unity System.

A safety assurance case was provided for the Unity Subcutaneous Delivery System for Remodulin, as recommended in the FDA guidance document, Infusion Pumps Total Product Life Cycle.

The stated goal of the safety assurance case is: "The Unity Remodulin Subcutaneous Infusion System is adequately safe for its intended use."

The assurance case defined the device system, including the indications for use, system definition, operational description, patient populations, and use environments. The context for the assurance case was updated to reflect the new use scenario of pharmacy filled cassettes. The supporting assurance arguments covered the following attributes:

- . All hazards associated with the system have been identified and adequately addressed
- Device reliability is adequate
- The device design requirements are adequately verified and validated ●

The arguments were updated from the original assurance case presented in predicate, K190182, to reflect new hazards and requirements associated with the changes.

The following specific evidence was included within the assurance case to demonstrate that the subject device is verified and validated for its intended use and to demonstrate substantial equivalence to the predicate devices.

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Since the assurance case builds on the original case, only evidence used to provide assurance related to the changes is listed here:

| Accessory<br>compatibility | Verification of the pump essential performance was completed with labeled administration sets |
|--------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device performance | The essential performance requirements of the device were verified through performance testing in accordance with the intended use of the device and in accordance with the FDA Guidance "Infusion Pumps Total Product Life Cycle" Performance of the device to maintain adequate assurance of drug stability, and protection from microbial ingress was evaluated through drug stability studies, container closure integrity and antimicrobial effectiveness testing. The testing was done to represent 14 days + 72 hours of in-use at a minimum. |
| Human Factors | Human factors evaluation per the FDA Guidance Applying Human Factors and Usability Engineering to Medical Devices (February 3, 2016). |
| Reprocessing,<br>Cleaning, Sterility | ISO 11137-1:2006 + A1:2013 Sterilization of health care products - Radiation - Part 1: Requirements for development, validation and routine control of a sterilization process for medical devices ISO 11607-1:2006 + A1:2014 Packaging for terminally sterilized medical devices - Part 1: Requirements for materials, sterile barrier systems and packaging systems Validation per the FDA Guidance for Reprocessing Medical Devices in Health Care Settings: Validation Methods and Labeling (March 17, 2015) confirmed cleaning and disinfection instruction provided in instructions for use |
| Biocompatibility | The materials used for the Unity System comply with biocompatibility requirements outlined in ISO 10993-1:2009 and the Guidance for Industry and Food and Drug Administration Staff, Use of International Standard ISO 10993 Biological Evaluation of Medical Devices Part 1: Evaluation and Testing within a Risk Management Process are considered to be biocompatible. |

## Clinical Study

No clinical data was obtained in support of this premarket submission.

# Conclusion

The modifications to the Unity System Operator's User Manual and the end user packaging to include the option for the cassettes to be filled with Remodulin by the Specialty Pharmacy as a user convenience does not change the intended use of the subject device compared to the Unity System cleared under premarket notification K190182. The changes summarized in this submission do not raise different questions of safety and effectiveness.

The performance of the device is supported by the assurance case, non-clinical testing and risk management activities. The Unity Subcutaneous Delivery System for Remodulin is Substantially Equivalent (SE) to the Unity Subcutaneous Delivery System for Remodulin cleared under premarket notification K190182.