(400 days)
SmartAdjust technology is intended for use with compatible integrated continuous glucose monitors (iCGM) and alternate controller enabled (ACE) pumps to automatically increase, and pause delivery of insulin based on current and predicted glucose values. SmartAdjust technology is intended for the management of type 1 diabetes mellitus in persons 6 years of age and older. SmartAdjust technology is intended for single patient use and requires a prescription.
The Omnipod 5 iAGC (SmartAdjust technology) is a software-only medical device intended for the management of type 1 diabetes mellitus. The Omnipod 5 iAGC uses data from a connected iCGM along with user-defined parameters to predict future glucose trends and automatically increase, decrease, or suspend the delivery of insulin via a compatible alternate controller enabled (ACE) pump.
The Omnipod 5 iAGC software is part of the Omnipod 5 Automated Insulin Delivery System, which also includes the Omnipod 5 ACE Pump, Omnipod 5 Bolus Calculator, and an interoperable iCGM. The Omnipod 5 iAGC is intended to be digitally connected to an iCGM and an ACE Pump.
The Omnipod 5 iAGC software resides on the Omnipod 5 ACE Pump (the Omnipod 5 Pod and Omnipod 5 App). The iAGC software is responsible for controlling insulin delivery via compatible ACE Pump when the system is in Automated Mode. iCGM data is transmitted from the iCGM to the ACE Pump via Bluetooth Low Energy technology. The Omnipod 5 iAGC uses this transmitted iCGM data in its calculations. The Omnipod 5 iAGC can be turned off, and the Omnipod 5 ACE Pump will operate in Manual Mode, which delivers insulin based on HCP- or user-defined Basal Programs.
The Omnipod 5 iAGC has three states of operation: Automated Mode, Automated: Limited, and Activity. In Automated Mode, the system calculates insulin delivery every 5 minutes based on the user-customizable glucose target (110–150 mg/dL). Automated: Limited is enabled when the Omnipod 5 iAGC is not receiving data from a connected iCGM for 20 minutes or more and during sensor warm-up. While in Automated: Limited, the user will receive no more than preprogrammed basal insulin. When a valid glucose value is received from the iCGM, the Omnipod 5 iAGC will resume delivery of insulin in full Automated Mode. Activity is a user-selected temporary feature intended for use during periods when insulin sensitivity is expected to be higher, such as during exercise. With Activity, the algorithm reduces insulin delivery and sets a temporary glucose target of 150 mg/dL.
Acceptance Criteria and Device Performance for SmartAdjust Technology
The SmartAdjust technology, an interoperable Automated Glycemic Controller (iAGC) for type 1 diabetes management, was evaluated through a clinical study. The acceptance criteria and reported device performance are detailed below.
1. Table of Acceptance Criteria and Reported Device Performance
The provided document does not explicitly list pre-defined quantitative acceptance criteria for all aspects. Instead, the study aims to demonstrate improvements in glycemic control and safety compared to standard therapy. The "Change" columns in the glycemic results tables effectively represent the performance metrics, and a "P 180mg/dL | Significant decrease | -15.1%* |
| Avg % ≥250mg/dL | Significant decrease | -9.4%* |
| Avg % ≥300mg/dL | Significant decrease | -5.1%* |
| Adolescents & Adults (14 to 70 years) | | |
| Avg A1C, % | Significant decrease | -0.38%* |
| Avg sensor glucose, mg/dL | Significant decrease | -8* |
| Avg % time 70-180mg/dL | Significant increase | 9.3%* |
| Median % 180mg/dL | Significant decrease | -7.7%* |
| Avg % ≥250mg/dL | Significant decrease | -4.3%* |
| Avg % ≥300mg/dL | Significant decrease | -2.0%* |
Safety Results (Incidence of Adverse Events)
| Adverse Event Type | Acceptance Criteria (Low incidence, comparable to standard, or manageable) | Reported Device Performance (Events per person-month / Count) |
|---|---|---|
| Severe hypoglycemia | Low incidence, ideally no association with device malfunction | 0.004 events per person-month (3 events total, not attributable to system) |
| Diabetic ketoacidosis (DKA) | Low incidence, ideally no association with device malfunction | 0.001 events per person-month (1 event total, from suspected infusion site failure) |
| Other related adverse events | Acceptable and manageable rate | Hypoglycemia (non-severe): 1 (0.4%) / Hyperglycemia: 3 (1.3%) / Prolonged Hyperglycemia: 18 (6.7%) / Other: 16 (6.7%) |
**Change between standard therapy phase and Omnipod 5 System phase was significant (P 180 mg/dL, ≥250 mg/dL, ≥300 mg/dL).
- Safety: Measured by the incidence of severe hypoglycemia and diabetic ketoacidosis (DKA), as well as other adverse events reported during the clinical trial.
8. Sample Size for the Training Set
The document does not provide information on the sample size for the training set. This is typical for device submissions where the algorithm's development (training) might involve proprietary data and methods not usually detailed in the 510(k) summary. The clinical study focuses on the validation and performance of the fully developed device.
9. How the Ground Truth for the Training Set Was Established
The document does not specify how the ground truth for any potential training set was established. Given the nature of an automated glycemic controller, it's plausible that the training could involve:
- Simulated physiological models of diabetes.
- Retrospective data from patients with T1D (e.g., CGM data, insulin delivery logs, meal information).
- Rule-based logic derived from clinical guidelines and expert knowledge, rather than a "trained" machine learning model in the conventional sense.
Without further information in the submission, the exact method for establishing ground truth for training cannot be determined.
§ 862.1356 Interoperable automated glycemic controller.
(a)
Identification. An interoperable automated glycemic controller is a device intended to automatically calculate drug doses based on inputs such as glucose and other relevant physiological parameters, and to command the delivery of such drug doses from a connected infusion pump. Interoperable automated glycemic controllers are designed to reliably and securely communicate with digitally connected devices to allow drug delivery commands to be sent, received, executed, and confirmed. Interoperable automated glycemic controllers are intended to be used in conjunction with digitally connected devices for the purpose of maintaining glycemic control.(b)
Classification. Class II (special controls). The special controls for this device are:(1) Design verification and validation must include:
(i) An appropriate, as determined by FDA, clinical implementation strategy, including data demonstrating appropriate, as determined by FDA, clinical performance of the device for its intended use, including all of its indications for use.
(A) The clinical data must be representative of the performance of the device in the intended use population and in clinically relevant use scenarios and sufficient to demonstrate appropriate, as determined by FDA, clinical performance of the device for its intended use, including all of its indications for use.
(B) For devices indicated for use with multiple therapeutic agents for the same therapeutic effect (
e.g., more than one type of insulin), data demonstrating performance with each product or, alternatively, an appropriate, as determined by FDA, clinical justification for why such data are not needed.(C) When determined to be necessary by FDA, the strategy must include postmarket data collection to confirm safe real-world use and monitor for rare adverse events.
(ii) Results obtained through a human factors study that demonstrates that an intended user can safely use the device for its intended use.
(iii) A detailed and appropriate, as determined by FDA, strategy to ensure secure and reliable means of data transmission with other intended connected devices.
(iv) Specifications that are appropriate, as determined by FDA, for connected devices that shall be eligible to provide input to (
e.g., specification of glucose sensor performance) or accept commands from (e.g., specifications for drug infusion pump performance) the controller, and a detailed strategy for ensuring that connected devices meet these specifications.(v) Specifications for devices responsible for hosting the controller, and a detailed and appropriate, as determined by FDA, strategy for ensuring that the specifications are met by the hosting devices.
(vi) Documentation demonstrating that appropriate, as determined by FDA, measures are in place (
e.g., validated device design features) to ensure that safe therapy is maintained when communication with digitally connected devices is interrupted, lost, or re-established after an interruption. Validation testing results must demonstrate that critical events that occur during a loss of communications (e.g., commands, device malfunctions, occlusions, etc.) are handled and logged appropriately during and after the interruption to maintain patient safety.(vii) A detailed plan and procedure for assigning postmarket responsibilities including adverse event reporting, complaint handling, and investigations with the manufacturers of devices that are digitally connected to the controller.
(2) Design verification and validation documentation must include appropriate design inputs and design outputs that are essential for the proper functioning of the device that have been documented and include the following:
(i) Risk control measures to address device system hazards;
(ii) Design decisions related to how the risk control measures impact essential performance; and
(iii) A traceability analysis demonstrating that all hazards are adequately controlled and that all controls have been validated in the final device design.
(3) The device shall include appropriate, as determined by FDA, and validated interface specifications for digitally connected devices. These interface specifications shall, at a minimum, provide for the following:
(i) Secure authentication (pairing) to connected devices;
(ii) Secure, accurate, and reliable means of data transmission between the controller and connected devices;
(iii) Sharing of necessary state information between the controller and any connected devices (
e.g., battery level, reservoir level, sensor use life, pump status, error conditions);(iv) Ensuring that the controller continues to operate safely when data is received in a manner outside the bounds of the parameters specified;
(v) A detailed process and procedures for sharing the controller's interface specification with connected devices and for validating the correct implementation of that protocol; and
(vi) A mechanism for updating the controller software, including any software that is required for operation of the controller in a manner that ensures its safety and performance.
(4) The device design must ensure that a record of critical events is stored and accessible for an adequate period to allow for auditing of communications between digitally connected devices, and to facilitate the sharing of pertinent information with the responsible parties for those connected devices. Critical events to be stored by the controller must, at a minimum, include:
(i) Commands issued by the controller, and associated confirmations the controller receives from digitally connected devices;
(ii) Malfunctions of the controller and malfunctions reported to the controller by digitally connected devices (
e.g., infusion pump occlusion, glucose sensor shut down);(iii) Alarms and alerts and associated acknowledgements from the controller as well as those reported to the controller by digitally connected devices; and
(iv) Connectivity events (
e.g., establishment or loss of communications).(5) The device must only receive glucose input from devices cleared under § 862.1355 (integrated continuous glucose monitoring system), unless FDA determines an alternate type of glucose input device is designed appropriately to allow the controller to meet the special controls contained within this section.
(6) The device must only command drug delivery from devices cleared under § 880.5730 of this chapter (alternate controller enabled infusion pump), unless FDA determines an alternate type of drug infusion pump device is designed appropriately to allow the controller to meet the special controls contained within this section.
(7) An appropriate, as determined by FDA, training plan must be established for users and healthcare providers to assure the safety and performance of the device when used. This may include, but not be limited to, training on device contraindications, situations in which the device should not be used, notable differences in device functionality or features compared to similar alternative therapies, and information to help prescribers identify suitable candidate patients, as applicable.
(8) The labeling required under § 809.10(b) of this chapter must include:
(i) A contraindication for use in pediatric populations except to the extent clinical performance data or other available information demonstrates that it can be safely used in pediatric populations in whole or in part.
(ii) A prominent statement identifying any populations for which use of this device has been determined to be unsafe.
(iii) A prominent statement identifying by name the therapeutic agents that are compatible with the controller, including their identity and concentration, as appropriate.
(iv) The identity of those digitally connected devices with which the controller can be used, including descriptions of the specific system configurations that can be used, per the detailed strategy submitted under paragraph (b)(1)(iii) of this section.
(v) A comprehensive description of representative clinical performance in the hands of the intended user, including information specific to use in the pediatric use population, as appropriate.
(vi) A comprehensive description of safety of the device, including, for example, the incidence of severe hypoglycemia, diabetic ketoacidosis, and other relevant adverse events observed in a study conducted to satisfy paragraph (b)(1)(i) of this section.
(vii) For wireless connection enabled devices, a description of the wireless quality of service required for proper use of the device.
(viii) For any controller with hardware components intended for multiple patient reuse, instructions for safely reprocessing the hardware components between uses.