Viveve Medical (VIVE) Risk Factors

Any modifications to an FDA-cleared device that could significantly affect its safety or effectiveness or that would constitute a major change in its intended use would require a new 510(k) clearance or possibly a premarket approval. We may not be able to obtain additional 510(k) clearances or premarket approvals for new products or for modifications to, or additional indications for, our existing product in a timely fashion, or at all. Delays in obtaining future clearances or approvals would adversely affect our ability to introduce new or enhanced products in a timely manner, which in turn could harm our revenue and potential future profitability. We have made modifications to our device in the past and may make additional modifications in the future that we believe do not or will not require additional clearances or approvals. If the FDA disagrees, and requires new clearances or approvals for the modifications, we may be required to recall and to stop marketing the modified device, which could harm our operating results and require us to redesign the product.

Developing and promoting our CMRF technology in additional countries for additional indications, including the U.S., is a key element of our future growth strategy. We currently do not have FDA clearance or approval to market the Viveve System in the U.S. for the treatment of vaginal laxity, sexual function, or SUI. We intend to seek clearance or approval for SUI from the FDA to expand our marketing efforts and have engaged with the FDA to help improve our likelihood of success. However, because the topline results from our VIVEVE II clinical trial did not meet the primary endpoint of demonstrating a statistically significant improvement in the mean change from baseline compared to sham treatment in total FSFI at 12 months, we no longer intend to pursue a sexual function or vaginal laxity label in the U.S.  We cannot predict whether we will receive clearance or approval for SUI. The FDA has required us to conduct clinical trials to support regulatory clearance or approval, which trials are time-consuming and expensive, and may produce results that do not result in clearance or approval of our FDA marketing application. In the event that we do not obtain FDA clearance or approval of the Viveve System for the treatment of SUI, we will be unable to promote it in the U.S. for that indication, and the ability to grow our revenue may be adversely affected.

Sales of the Viveve System internationally are subject to foreign regulatory requirements that vary widely from country to country. In addition, the FDA regulates exports of medical devices from the U.S. Complying with international regulatory requirements can be an expensive and time-consuming process, and marketing approval or clearance is not certain. The time required to obtain clearances or approvals, if required by other countries, may be longer than that required for FDA clearance or approvals, and requirements for such clearances or approvals may significantly differ from FDA requirements. We may rely on third-party distributors to obtain regulatory clearances and approvals required in other countries, and these distributors may be unable to obtain or maintain such clearances or approvals. Our distributors may also incur significant costs in attempting to obtain and in maintaining foreign regulatory approvals or clearances, which could increase the difficulty of attracting and retaining qualified distributors. If our distributors experience delays in receiving necessary qualifications, clearances or approvals to market our products outside the U.S., or if they fail to receive those qualifications, clearances or approvals, we may be unable to market our products or enhancements in international markets effectively, or at all. Foreign governmental authorities that regulate the manufacture and sale of medical devices have become increasingly stringent and, to the extent we market and sell our products outside of the U.S., we may be subject to rigorous international regulation in the future. In these circumstances, we would be required to rely on our foreign independent distributors to comply with the varying regulations, and any failures on their part could result in restrictions on the sale of our product in foreign countries.

The Viveve System is, and any future products we may acquire or develop will be, subject to rigorous regulation by the FDA and numerous other federal, state and foreign governmental authorities. The process of obtaining regulatory clearances or approvals to market a medical device can be costly and time consuming, and we may not be able to obtain these clearances or approvals on a timely basis, if at all. In particular, the FDA permits commercial distribution of a new medical device only after the device has received clearance under section 510(k) of the Federal Food, Drug, and Cosmetic Act (the "FDCA") (unless the device is exempt from the 510(k) requirements), has been classified pursuant to a de novo classification request, or is the subject of an approved premarket approval application ("PMA"). The FDA will permit marketing of a lower risk medical device through the 510(k) process if the manufacturer demonstrates that the new product is substantially equivalent to a previously cleared and legally marketed device or a device that was in commercial distribution before May 28, 1976, for which the FDA has not yet called for the submission of PMA, referred to as a predicate device. Devices deemed to pose the greatest risk, such as life-sustaining, life-supporting, or implantable devices, or devices not deemed substantially equivalent to a previously cleared device, require the approval of a PMA, unless a de novo submission is appropriate. The PMA process is more costly, lengthy and uncertain than the 510(k) clearance process. A PMA application must be supported by extensive data, including, but not limited to, technical, preclinical, clinical trial, manufacturing and labeling data, to demonstrate to the FDA a reasonable assurance of the safety and efficacy of the device for its intended use. If the FDA has not issued a regulation classifying a particular type of device as Class I, and if there is no known predicate for a device and/or its indication, the device is automatically Class III, regardless of the risk the device poses. If a device is automatically/statutorily classified into Class III in this manner, a company can petition FDA to reclassify the category of devices into Class II or Class I via a process known as "Evaluation of Automatic Class III Designation," which is typically referred to as the de novo process. The direct de novo process allows a company to request that a new product classification be established without the company first submitting a 510(k) notification for the device.   Our plan is to seek FDA authorization to market the Viveve System for the treatment of SUI by utilizing the direct de novo process. However, we cannot predict when or if such de novo classification will be obtained. If FDA fails to reclassify the device pursuant to the de novo process, we will be required to seek FDA premarket approval (via the more stringent PMA process) for the Viveve System, which will be extremely costly and very time-consuming, often taking as long as several years. Delays in receipt of FDA clearance or approval or failure to receive FDA clearance or approval could adversely affect our business, results of operations and future growth prospects.

Under the FDCA and other laws, we are prohibited from promoting our products for off-label uses. This means that we may not make claims about the use of any of our marketed medical device products outside of their approved or cleared indications, and that our website, advertising promotional materials and training methods may not promote or encourage unapproved uses. The Viveve System is currently indicated for use, and being marketed for use, in general surgical procedures for electrocoagulation and hemostasis in the United States. The device has not been cleared or approved for use for SUI, vaginal laxity, to improve sexual function, or for vaginal rejuvenation in the United States. Therefore, we may not provide information to physicians or patients that promote the Viveve System for SUI, vaginal laxity, to improve sexual function, or for vaginal rejuvenation.  Note, however, that the FDA does not generally restrict physicians from prescribing products for off-label uses (or using products in an off-label manner) in their practice of medicine. We are also permitted to engage in non-promotional scientific exchange in response to unsolicited questions by physicians about our products. Should the FDA determine that our activities constitute the promotion of off-label uses, the FDA could bring action to prevent us from distributing our devices for the off-label use and could impose fines and penalties on us and our executives. In addition, failure to follow FDA rules and guidelines relating to promotion and advertising can result in, among other things, the FDA's refusal to approve or clear other products in our pipeline such as clearance or approval to treat SUI, the withdrawal of an approved product from the market, product recalls, fines, disgorgement of profits, operating restrictions, injunctions or criminal prosecutions. Any of these adverse regulatory actions could result in substantial costs and could significantly and adversely impact our reputation and divert management's attention and resources, which could have a material adverse effect on our business.

Any product for which we obtain clearance or approval, and the manufacturing processes, reporting requirements, post-approval clinical data and promotional activities for such product, will be subject to continued regulatory review, oversight and periodic inspections by the FDA and other domestic and foreign regulatory bodies, such as the Food and Drug Branch of the California Department of Public Health ("CDPH"). In particular, we and our suppliers are required to comply with the FDA's QSR, and International Standards Organization ("ISO") standards for the manufacture of our product and other regulations which cover the methods and documentation of the design, testing, production, control, quality assurance, labeling, packaging, storage and shipping of any product for which we obtain clearance or approval. Regulatory bodies, such as the FDA, enforce the QSR and other regulations through periodic inspections. In the past, our Sunnyvale, California facility has been inspected by the FDA and CDPH, and observations were noted. The FDA and CDPH have accepted our responses to these observations, and we believe that we are in substantial compliance with the QSR. Any future failure by us or one of our suppliers to comply with applicable statutes and regulations administered by the FDA and other regulatory bodies, or the failure to timely and adequately respond to any adverse inspectional observations or product safety issues, could result in, among other things, any of the following enforcement actions and unanticipated expenditures to address or defend such actions: - untitled letters, warning letters, fines, injunctions, consent decrees and civil penalties;   - customer notifications for repair, replacement or refunds;   - recall, detention or seizure of our products;   - operating restrictions or partial suspension or total shutdown of production;   - refusing or delaying our requests for 510(k) clearance, de novo classification, or premarket approval of new products or modified products;   - operating restrictions;   - reclassifying a device that previously received a 510(k) clearance or withdrawing a PMA approval that was previously granted;   - refusal to grant export approval for our product; or   - criminal prosecution. If any of these actions were to occur, it would harm our reputation and cause our product sales to suffer and may prevent us from generating revenue. Furthermore, our third-party manufacturers may not currently be, or may not continue to be, in compliance with all applicable regulatory requirements which could result in a failure to produce our product on a timely basis and in the required quantities, if at all. Even if regulatory clearance or approval of a product is granted for the Viveve System or future products, such clearance or approval may be subject to limitations on the intended uses for which the product may be marketed and reduce our potential to successfully commercialize the product and generate revenue from the product. If the FDA determines that our promotional materials, labeling, training or other marketing or educational activities constitute promotion of an unapproved use, it could request that we cease or modify our training or promotional materials or subject us to regulatory enforcement actions. It is also possible that other federal, state or foreign enforcement authorities might take action if they consider our training or other promotional materials to constitute promotion of an unapproved use, which could result in significant fines or penalties under other statutory authorities, such as laws prohibiting false claims for reimbursement. In addition, we may be required by the FDA or other foreign regulatory bodies to conduct costly post-market testing and surveillance to monitor the safety or effectiveness of our products, and we must comply with medical device reporting requirements, including the reporting of adverse events and malfunctions related to our products. Later discovery of previously unknown problems with our products, including unanticipated adverse events or adverse events of unanticipated severity or frequency, manufacturing problems, or failure to comply with regulatory requirements such as the QSR, may result in changes to labeling, restrictions on such products or manufacturing processes, withdrawal of the products from the market, voluntary or mandatory recalls, a requirement to repair, replace or refund the cost of any medical device we manufacture or distribute, fines, suspension of regulatory approvals, product seizures, injunctions or the imposition of civil or criminal penalties which would adversely affect our business, operating results and prospects. The Viveve System may also be subject to state regulations which are, in many instances, in flux. Changes in state regulations may impede sales. For example, federal regulations may allow the device to be sold to, or on the order of, "licensed practitioners," as determined on a state-by-state basis. As a result, in some states, non-physicians may legally purchase and operate our device. However, a state could change its regulations at any time, disallowing sales to particular types of end users. We cannot predict the impact or effect of future legislation or regulations at the federal or state levels.

Under the FDA's medical device reporting regulations, medical device manufacturers are required to report to the FDA information that a device has or may have caused or contributed to a death or serious injury or has malfunctioned in a way that would be likely to cause or contribute to death or serious injury if the malfunction of the device were to recur. If we fail to report these events to the FDA within the required timeframes, or at all, the FDA could take enforcement action against us. Any such adverse event involving the Viveve System or future products could result in future voluntary corrective actions, such as recalls or customer notifications, or agency action, such as inspection or enforcement action. Any corrective action, whether voluntary or involuntary, as well as mounting a defense to a legal action, if one were to be brought, would require the dedication of our time and capital, distract management from operating our business, and may harm our reputation and financial results.

From time to time, legislation is drafted and introduced in the U.S. Congress that could significantly change the statutory provisions governing the clearance or approval, manufacture and marketing of a medical device. In addition, FDA regulations and guidance are often revised or reinterpreted by the agency in ways that may significantly affect our business and our product. It is impossible to predict whether legislative changes will be enacted or FDA regulations, guidance or interpretations will be changed, and what the impact of such changes, if any, may be. For example, in August 2010, the FDA issued its preliminary recommendations on reform of the 510(k) pre-market notification process for medical devices. On January 19, 2011, the FDA announced its "Plan of Action" for implementing these recommendations. The Plan of Action included 25 action items, most of which have now been implemented by the agency. In August 2016, the FDA released its proposals for reforming long-standing procedures and requirements related to modifications to medical devices already on the market.  In December 2016, Congress passed the 21st Century Cures Act, which makes multiple changes to FDA's rules for medical devices as well as for clinical trials, and Congress (passed the Medical Device User Fee reauthorization package in 2017. The FDA or Congress may implement other reforms in the future. Future reforms could have the effect of making it more difficult and expensive for us to obtain FDA clearance or approval.  Such changes may also be made by legislators or regulators in the foreign jurisdictions in which we do business and could similarly affect our operations and profitability in those markets. In addition, a state could change its statutes or regulations at any time, disallowing sales to particular types of end users or placing restrictions on certain chemicals, such as those used in our cryogen. We cannot predict the impact or effect of future legislation or regulations at the federal or state levels, or in any foreign jurisdiction in which we do business.

A significant portion of our revenue is and will be from jurisdictions outside of the U.S. We are subject to the U.S. Foreign Corrupt Practices Act (the "FCPA") which generally prohibits U.S. companies and their intermediaries from making payments to foreign officials for the purpose of directing, obtaining or keeping business, and requires companies to maintain reasonable books and records and a system of internal accounting controls. The FCPA applies to companies and individuals alike, including company directors, officers, employees and agents. Under the FCPA, U.S. companies may be held liable for the corrupt actions taken by employees, strategic or local partners or other representatives. In addition, the government may seek to rely on a theory of successor liability and hold us responsible for FCPA violations committed by companies or associated with assets which we acquire. In recent years, the medical device and pharmaceutical industries have been a focus of the U.S. government's FCPA enforcement priorities, and settlements often include very significant payments potentially consisting of millions of dollars. Other countries have similar laws to which we may be subject, including the United Kingdom Bribery Act. In many foreign countries where we operate, particularly in countries with developing economies, it may be a local custom for businesses to engage in practices that are prohibited by the FCPA or other similar laws and regulations. In contrast, we have implemented a company policy requiring our employees and consultants to comply with the FCPA and similar laws. At the present time, we have not conducted formal FCPA compliance training for our foreign distributors and partners, but we are in the process of devising a training schedule for certain of our employees, agents and partners. Nevertheless, there can be no assurance that our employees, partners and agents, as well as those companies to which we outsource certain of our business operations, will not take actions in violation of the FCPA or our policies for which we may be ultimately held responsible. As a result of our anticipated growth, our development of infrastructure designed to identify FCPA matters and monitor compliance is at an early stage. If we or our intermediaries fail to comply with the requirements of the FCPA or similar legislation, governmental authorities in the U.S. and elsewhere could seek to impose civil and/or criminal fines and penalties which could have a material adverse effect on our reputation, business, operating results and financial conditions. We may also face collateral consequences, such as debarment and the loss of our export privileges.

In the future, for financial or operational purposes, we may elect to perform component or system manufacturing functions internally. Our limited experience with manufacturing processes could lead to difficulties in producing sufficient quantities of manufactured items that meet our quality standards and that comply with applicable regulatory requirements in a timely and cost-effective manner. In addition, if we experience these types of manufacturing difficulties, it may be expensive and time consuming to engage a new or previous subcontractor or supplier to fulfill our replacement manufacturing needs. The occurrence of any of these events could harm our business.

Viveve has implemented in-house repair services for common field failure modes for the Viveve system. This is limited to component or board level replacement where the replacement components are supplied by the original manufacturer. This reduces the risk of being able to obtain repair service on a timely basis but adds additional risk related to training and competence of our internal personnel to perform such training.

Problems in our manufacturing processes, or those of our manufacturers or subcontractors, which lead to an actual or possible malfunction in any of the components of our device, may require us to recall product from customers or replace components and could disrupt our operations. Our results of operations, reputation and market acceptance of our products could be harmed if we encounter difficulties in manufacturing that result in a more significant issue or significant patient injury and delays our ability to fill customer orders.

Our success largely depends on the skills, experience and efforts of our officers and other key employees. While we have employment contracts with our Chief Executive Officer and our Senior Vice President of Finance and Administration (Principal Accounting and Financial Officer), these officers and other key employees may terminate their employment at any time. The loss of any senior management team members could weaken our management expertise and harm our business. Our ability to retain our skilled labor force and our success in attracting and hiring new skilled employees will be a critical factor in determining whether we will be successful in the future. We may not be able to meet our future hiring needs or retain existing personnel. We will face particularly significant challenges and risks in hiring, training, managing and retaining engineering and sales and marketing employees, as well as independent distributors, most of whom are geographically dispersed and must be trained in the use of our device and benefits of the Viveve System and treatment. Failure to attract and retain personnel, particularly technical and sales and marketing personnel, would materially harm our ability to compete effectively and grow our business.

The single source supply of each generation of the Viveve System from Stellartech and Spartronics could not be replaced without significant effort and delay in production. Also, several other components and materials that comprise our device are currently manufactured by a single supplier or a limited number of suppliers. In many of these cases, we have not yet qualified alternate suppliers and we rely upon purchase orders, rather than long-term supply agreements. A supply interruption or an increase in demand beyond our current suppliers' capabilities could harm our ability to manufacture the Viveve System until new sources of supply are identified and qualified. Our reliance on these suppliers subjects us to a number of risks that could harm our business, including: - interruption of supply resulting from modifications to or discontinuation of a supplier's operations;   - delays in product shipments resulting from uncorrected defects, reliability issues or a supplier's variation in a component;   - a lack of long-term supply arrangements for key components with our suppliers;   - inability to obtain adequate supply in a timely manner, or to obtain adequate supply on commercially reasonable terms;   - difficulty locating and qualifying alternative suppliers for our components in a timely manner;   - production delays related to the evaluation and testing of products from alternative suppliers, and corresponding regulatory qualifications;   - delay in delivery due to suppliers prioritizing other customer orders over our orders;   - damage to our brand reputation caused by defective components produced by our suppliers;   - increased cost of our warranty program due to product repair or replacement based upon defects in components produced by our suppliers; and   - fluctuation in delivery by our suppliers due to changes in demand from us or from their other customers. Any interruption in the supply of components or materials, or our inability to obtain substitute components or materials from alternate sources at acceptable prices in a timely manner, could impair our ability to meet the demand of our customers, which would have an adverse effect on our business.

We and our third-party manufacturers are required to demonstrate and maintain compliance with the FDA's QSR. The QSR is a complex regulatory scheme that covers the methods and documentation of the design, testing, control, manufacturing, labeling, quality assurance, packaging, storage and shipping of our product. The FDA enforces the QSR through periodic unannounced inspections. We anticipate that in the future we will be subject to such inspections. Our failure, or the failure of our third-party manufacturers, to take satisfactory corrective action in response to an adverse QSR inspection could result in enforcement actions, including a public warning letter, a shutdown of our manufacturing operations, a recall of our product, civil or criminal penalties or other sanctions, which would cause our reputation, sales and business to suffer.

All procedures performed using the Viveve System are elective procedures, the cost of which must be borne by the patient and are not currently reimbursable through government or private health insurance. The decision to undergo a Viveve treatment is thus driven by consumer demand, which may be influenced by a number of factors, such as: - whether our marketing efforts directed toward increasing consumer awareness of the Viveve treatment, for which we have limited experience and resources and indications, are successful;   - the extent to which physicians recommend the Viveve treatment to their patients;   - the cost, safety and effectiveness of the Viveve procedure versus alternative treatments;   - general consumer sentiment about the benefits and risks of such procedures; and   - consumer confidence, which may be impacted by economic and political conditions. Our financial performance could be materially harmed in the event that any of the above factors discourage patients from seeking the Viveve treatment.

Our sales and marketing organization is structured so that we rely on a direct sales force to sell the Viveve System in the United States. However, in the first quarter of 2019, we reorganized and reduced the number of direct sales reps selling our products. Additionally, in response to the COVID-19 crisis, the Company implemented a series of significant cost-cutting actions in the second quarter of 2020, including the furlough of 31 full-time employees throughout the entire organization, designed to reduce expenses and reposition resources to support the Company's current customers and its pivotal clinical development program for our CMRF technology in the treatment of SUI. These corporate actions included an approximate two-thirds reduction of the direct sales organization. We believe our reorganization in 2019 and the operational changes implemented in 2020 related to the COVID-19 crisis will help reduce our operating expenses. We do not currently anticipate making any significant changes to our international distribution network. Our reorganization and other operational changes may not have the desired effect of reducing our operating expenses and may result in a disruption to our business, adversely affect our sales and marketing organization and make it more difficult to retain qualified personnel. In addition, our management may divert a disproportionate amount of time away from its day-to-day activities to devoting a substantial amount of time to managing the reorganization which may increase our expenses. Our future financial performance and ability to compete effectively will depend, in part, on our ability to effectively manage the reorganization and future growth. To that end, we must be able to: - hire qualified individuals as needed;   - provide adequate training for the effective sale of our device; and   - retain and motivate sales employees. We may not be able to accomplish these tasks, which could harm our financial results and have a material adverse effect on our business.

We currently depend exclusively on third-party distributors to sell and service the Viveve System internationally and to train our international customers, and if these distributors terminate their relationships with us or under-perform, we may be unable to maintain or increase our level of international revenue. We will also need to engage additional international distributors to grow our business and expand the territories in which we sell the Viveve System. Distributors may not commit the necessary resources to market, sell and service our device to the level of our expectations. If current or future distributors do not perform adequately, or if we are unable to engage distributors in particular geographic areas, our revenue from international operations will be adversely affected.

In 2012, we began marketing the Viveve System (RF generator, handpiece and single-use treatment tips) and other ancillary consumables, in Canada, Hong Kong and Japan. Since then, we have expanded our market to a total of 50 countries, including the United States. Our continued success depends on our ability to significantly penetrate current or new markets. If demand for the Viveve System and Viveve treatment does not expand in new markets or does not increase in existing markets as we anticipate, or if demand declines, our business, financial condition and results of operations will be harmed.

Our cooling module relies upon a HFC called R134a, to protect the outer layer of the tissue from over-heating while the device delivers RF energy to the submucosal tissue. New environmental regulations phasing out HFCs over the next decade have been adopted or are under consideration in a number of countries. Since 2007, European Union directives aimed at the automotive industry require the phase-out of HFCs and prohibit the introduction of new products incorporating HFCs and it is currently anticipated that such directives may impact the medical device industry. In anticipation of future restrictions, we have qualified a more environmentally friendly HFC (1234ZE) for use in our generators. We do not anticipate that we will have to incur costs in the near future to develop an alternative cooling module for our device which is not dependent on HFCs. However, the impending restrictions on HFCs have reduced their current availability, as suppliers have less of an incentive to expand production capacity or maintain existing capacity. This change in supply could expose us to supply shortages or increased prices for R134a and 1234ZE, which could impair our ability to manufacture our device and adversely affect our results or operations. HFCs may also be classified by some countries as a hazardous substance and, therefore, subject to significant shipping surcharges that may negatively impact profit margins. As a result, if we are unable to develop an alternative cooling module for our device which is not dependent on HFCs in a timely or cost-effective manner, the Viveve System may not be in compliance with environmental regulations, which could result in fines, civil penalties and the inability to sell our products in certain major international markets.

Even if our clinical trials, including the PURSUIT trial, are completed as planned, it cannot be certain that the results of the clinical trials will support our proposed claims for the Viveve System. There is no guarantee that FDA or foreign authorities will agree with our conclusions based on the results of such clinical trials. Even if our product receives regulatory approval or clearance, it is possible that the use of our product may result in adverse side effects which may limit or prevent its future use. Success in preclinical studies and early clinical trials does not ensure that later clinical trials will be successful, and we cannot be sure that the later trials will replicate the results of prior trials and preclinical studies. The clinical trial process may fail to demonstrate that our product is safe and effective for the proposed indicated uses. Any delay of our clinical trials or failure by the FDA or other foreign authorities to accept our product claims will delay, or even prevent, our ability to commercialize our product and generate revenue. For example, in April 2020, we reported the topline results of our VIVEVE II clinical trial consisting of a multicenter, randomized, double-blinded, sham-controlled study to evaluate the safety and efficacy of the company's proprietary, CMRF technology for the improvement of sexual function in women following vaginal childbirth. The data showed that the VIVEVE II study did not meet its primary endpoint of demonstrating a statistically significant improvement in the mean change from baseline in total FSFI score at 12 months. We continue to advance our clinical development program in SUI in the United States under our PURSUIT clinical trial. Completion of subject follow-up visits is anticipated by the end of 2022, and topline results will be reported shortly thereafter. If the data is not positive, our clinical trial may not support our proposed product claims for FDA clearance or approval of the Viveve System for the treatment of SUI. In such a case, we will be unable to market the Viveve System in the United States for the SUI indication, our business prospects will be substantially affected, and we will reevaluate our ability to continue with the current approach and/or seek strategic alternatives, including an acquisition or sale of assets or a dissolution and liquidation of the Company.

The FDA has asked us to conduct a clinical study, pursuant to the agency's IDE regulations, to support a future product submission for the Viveve System. Initiating and completing clinical trials necessary to support a 510(k) notification, de novo petition, or PMA application for the Viveve System, as well as other possible future product candidates, is time consuming and expensive and the outcome is uncertain. Moreover, the results of early clinical trials are not necessarily predictive of future results, and any product we advance into clinical trials may not have favorable results in later clinical trials. Conducting successful clinical studies will require the enrollment of patients, and suitable patients may be difficult to identify and recruit. Patient enrollment in clinical trials and completion of patient participation and follow-up depends on many factors, including the size of the patient population, the nature of the trial protocol, the desirability of, or the discomforts and risks associated with, the treatments received by enrolled subjects, the availability of appropriate clinical trial investigators and support staff, the proximity of patients to clinical sites, the ability of patients to comply with the eligibility and exclusion criteria for participation in the clinical trial and patient compliance. For example, patients may be discouraged from enrolling in our clinical trials if the trial protocol requires them to undergo extensive post-treatment procedures or follow-up to assess the safety and effectiveness of our product or if they determine that the treatments received under the trial protocols are not desirable or involve unacceptable risk or discomfort. Development of sufficient and appropriate clinical protocols to demonstrate safety and efficacy are required and we may not adequately develop such protocols to support clearance or approval. Further, the FDA may require us to submit data on a greater number of patients than we originally anticipated and/or for a longer follow-up period or change the data collection requirements or data analysis applicable to our clinical trials. Delays in patient enrollment or failure of patients to continue to participate in a clinical trial may cause an increase in costs and delays in the approval or clearance and attempted commercialization of our product or result in the failure of the clinical trial. In addition, despite considerable time and expense invested in clinical trials, the FDA may not consider our data adequate to demonstrate safety and efficacy. Such increased costs and delays or failures could adversely affect our business, operating results and prospects. Finally, even if our clinical trials receive IDE approval from FDA, this does not guarantee that FDA will find our clinical trial data sufficient to support an application for FDA clearance or approval.  For example, after submitting an application to FDA, the agency may raise questions during the review process regarding the clinical trial data, including those related to clinical trial design considerations.  If FDA has questions regarding the clinical study design or clinical trial results, FDA may issue an Additional Information ("AI") request to Viveve as part of the review process. If FDA issues an AI request, FDA's review clock is stopped until Viveve provides information responsive to FDA's requests.  An AI request may delay the process for obtaining FDA clearance or approval.  Further, if FDA ultimately does not find Viveve's clinical trial design or clinical data to be sufficient to support the safety and efficacy of the Viveve System for proposed indication, there is a risk that FDA may not grant clearance or approval of our application.