00:00 – Dr. Nicholas Sanford: I’ve heard some physicians talk about treating chronic UTIs, kind of like peeling an onion. You’ve got to knock it down one layer at a time until it’s able to recolonize to a
00:11 – healthy state. Melissa: Hi. Welcome back to the live UTI free Channel. My name is Melissa, and this is part two of our interview with Dr. Nicholas
00:18 – Sanford, the Vice President of Medical Affairs and Assistant Lab Director at MicroGenDX. We covered the different types of UTI
00:24 – testing in part one. In this video, we’ll discuss antibiotic resistance and how to interpret test results and treatment recommendations.
00:31 – We have a lot of information about UTI testing on our website, so we’ll be sure to share some links in the video description.
00:37 – If you enjoy these videos and want to support what we do, be sure to hit subscribe and tick the bell so you’ll be notified of our
00:43 – future videos. Thanks again for joining us on this journey to making change in women’s health. [Intro music] Let’s
01:00 – talk a little bit about antibiotic resistance. Can you explain the difference between the way in which MicroGenDX reports antibiotic
01:06 – resistance and the antibiotic susceptibility testing conducted as part of the standard urine culture?
01:12 – Dr. Nicholas Sanford: Yeah. So ASTs or susceptibility tests are using cultured isolates to determine the susceptibility and the
01:21 – minimum inhibitory concentration. So, they’re predicated on having a positive culture first and foremost. Antibiotic resistance testing
01:31 – or ART uses PCR to detect known antibiotic resistance genes. So,
01:37 – an AST is going to rule in treatments for you when cultures are positive. Resistance test is going to rule out treatments regardless
01:48 – of a culture result. Mm-hmm. So, I think that’s the big difference in how I explain what they are is you know, resistance testing
01:56 – is creating a scenario of avoidance where the AST is inclusion.
02:02 – Melissa: Yeah that’s a really good way to look at it. The other question is if it does detect antibiotic resistance genes, does
02:08 – that mean that antibiotic will not work or that it just might be less effective than others?
02:13 – Dr. Nicholas Sanford: Well, I don’t know if I can really say. What we can say when it’s detected is that we know it’s there.
02:19 – Melissa: Mm-hmm. Dr. Nicholas Sanford: We don’t know if it’s being expressed or not, and it’s certainly possible that it’s not being expressed. Say
02:25 – you’ve got a quinolone resistance gene not being expressed, and then you throw a quinolone at it. Well, quinolone might cause
02:31 – the gene to be expressed. Melissa: Right. Dr. Nicholas Sanford: So, I would say if you’re going to be targeting
02:37 – something for which resistance is present, I would avoid those compounds.
02:43 – Melissa: Okay. A lot of people asked if you have any plans to implement susceptibility testing alongside the antibiotic resistance genes.
02:51 – Dr. Nicholas Sanford: I don’t think so. ASTs require that positive culture up front. Melissa: Hmm. Dr. Nicholas Sanford: Cultures are negative far too often. I
03:00 – think this is probably something we will do in the future but we’ll be leveraging whole genome sequencing data in order to predict
03:08 – these phenotypic sensitivities. So, that’s something that’s still a ways off, but I think it will give us AST-like information without
03:18 – the culture dependent testing. Melissa: Okay, you might have answered this question already, sort
03:25 – of in what you said, but are the antibiotic resistance genes detected and the recommendations that come from those ever tested alongside
03:32 – susceptibility testing, so that you can compare how accurate they are?
03:38 – Dr. Nicholas Sanford: So yeah, we still need to do some some work there. But I think on the report you’re referring to the antimicrobials
03:45 – for consideration. Melissa: Mm-hmm. Dr. Nicholas Sanford: And you know that is data that is, it
03:50 – looks a little bit like an AST but it’s not. What it’s showing you is wild type sensitivities for the organisms we’ve identified
03:58 – and those sensitivities are published in either the Hopkins or the Sanford guide. So that’s not data that we’re generating.
04:04 – Melissa: And in the case of polymicrobial infection where an infection is caused by more than one organism, are the resistance genes
04:10 – detected a reflection of the group resistance or of each individual organism?
04:16 – Dr. Nicholas Sanford: So, because we’re doing this two-part test to get an identification and the resistance profile, we can’t
04:23 – physically link a resistance gene we detect to any specific organism. But we know that we need to in some form of fashion. So, what
04:31 – we’ve done is correlated certain resistance genes, the ones that we’re targeting with certain bacteria that they’ve been found
04:40 – in, and this has been established in the literature. You can see a table on the second page of our reports that shows which resistance
04:48 – genes corresponds to which single species or which genera. So,
04:54 – there’s a table there that explains who goes to what. Melissa: Can you estimate what percentage of tests your lab processes
05:01 – that are polymicrobial infection? Oh, I mean, the stark majority
05:07 – of them are gonna be polymicrobial. A lot of the research we’ve done, in PJI and urology, even in nails, it is showing that a
05:19 – majority of these infections are polymicrobial. Mm-hmm. Yeah, it’s sort of a complicated topic, but it also shows the limitations
05:27 – of standard culture where the results often just report one organism. And now we’re seeing that that’s unlikely to be the case for most
05:34 – people. Dr. Nicholas Sanford: Mm-hmm. And even repeated cultures. I mean, if the organism that’s being missed is one of these that is unculturable
05:42 – – Melissa: Mmm-hmm. Dr. Nicholas Sanford: Maybe it’s viable, but not culturable, maybe it doesn’t grow on the media that we have available. I mean, you
05:49 – may never see it. Melissa: Mm-hmm. Yeah. It’s an issue, I think, for a lot of people in this community, and probably one of the reasons people end
05:57 – up with this long-term recurrence because things are being missed. Dr. Nicholas Sanford: I believe so, I believe so. I think it’s better
06:03 – to have more information than less. Melissa: Yeah, I think most patients would agree. When you do provide
06:09 – information on resistance genes, is that on all test results or only on those done within the US?
06:15 – Dr. Nicholas Sanford: So, the resistance gene testing is available everywhere. The antimicrobials for consideration are not.
06:22 – Melissa: Mm-hmm. Which regions do you provide those recommendations for? Dr. Nicholas Sanford: So, we’ll provide them in the US as long as
06:30 – the sample comes with a clinician signature. Melissa: Mm-hmm. Dr. Nicholas Sanford: We
06:36 – don’t provide them currently in the state of New York. Melissa: Okay. That’s because of a difference in regulation?
06:42 – Dr. Nicholas Sanford: It is. It is. New York is a clear exempt state. And they have just slightly different regulations, but we are
06:50 – working with them, trying to get that included. Melissa: A lot of people have asked about whether in the future,
06:57 – patients might be able to receive those antibiotic recommendations without a clinician’s signature. Do you think that will ever be
07:02 – possible? Dr. Nicholas Sanford: I don’t think so. It’s a regulatory requirement to mitigate patients self-prescribing outside the guidance of
07:10 – a healthcare professional. Melissa: I figured that was the case. It’s always worth asking though.
07:16 – On to the results now, how long does it take for you to provide results once a sample has been received by the lab?
07:23 – Dr. Nicholas Sanford: So, our level one results are available within 24 hours of sample receipt at the laboratory.
07:29 – Melissa: Mm-hmm. Dr. Nicholas Sanford: And the level two NGS is available in 3 to 5 days. Our average on the NGS is three and a half days.
07:37 – Melissa: Mm-hmm. Dr. Nicholas Sanford: It will sometimes go out to five days because we’ll see something on the original 16S PCR. But the sample won’t
07:47 – make the thousand reads to meet our threshold. Melissa: Hmm. Dr. Nicholas Sanford: So, we’ll try running it again on a larger
07:53 – cell. This kind of generate a lot more data. And so, when we do
07:58 – that repeat testing, that’s what can take it out to five days sometimes. Melissa: Okay. So, just to clarify, level one is PCR and level two
08:05 – is NGS. Dr. Nicholas Sanford: Correct. Melissa: Do patients receive level one while they’re waiting for level two? Or do you wait and send them all at the same time?
08:12 – Dr. Nicholas Sanford: We send the level one out first because it’s got the PCR information and PCR isn’t just a resistance genes.
08:19 – It’s also got some of the common organisms that we’ll see in that given sample type. So, it provides kind of a rapid preliminary
08:27 – result to show you here’s some things that we’identified that are common neuro pathogens that you wanna look at.
08:35 – Melissa: Mm-hmm. Dr. Nicholas Sanford: And then the NGS, like, we would love to have it come to you all at once very rapidly. An NGS just takes a little
08:42 – bit longer. And this is because the process, it includes sample prep and there’s a couple hours for that. Then once we get the
08:50 – sample on the sequencer, depending on the cell, the flow cell you’re using, it can be up to 55 hours of sequencing time.
08:58 – Melissa: Mm-hmm. Dr. Nicholas Sanford: And then that’s followed up by several hours of bioinformatic analysis. We are working to develop some metagenomic
09:08 – options that we’re aiming at a 24 hour turnaround time on that.
09:13 – Melissa: That would be great news for patients when that happens. Do the results indicate which organisms are considered to be pathogens
09:19 – versus those that are considered beneficial? Dr. Nicholas Sanford: They do not. And I think the biggest reason
09:26 – for that is because we don’t have patient history. We don’t know if this patient is being tested because they are trying to find
09:34 – out what’s causing the infection or – Melissa: Mm-hmm. If they’re trying to do a test of cure. So, we
09:40 – don’t presume to know what this report is telling us. Mm-hmm. Dr. Nicholas Sanford: We leave that up to the physician to interpret.
09:49 – Melissa: Yeah. That does make sense from that perspective. How do you determine the low versus medium or high bacterial load?
09:56 – Dr. Nicholas Sanford: So, that’s done with a PCR test. It’s a 16S PCR. And what we’re doing is just determining low being less than
10:06 – ten to the fifth copies per ml. Medium is anywhere between ten to the fifth and ten to the seventh, and high is greater than
10:12 – ten to the seventh. And, you know, what we do is with this PCR assay, to figure that out is we run a bunch of standard curves
10:19 – for all kinds of different organisms. And we do this to try to account for the copy number variation of 16S, because we know
10:28 – that even within species or between species, you can see different
10:34 – copies of 16S. So, that bacterial load isn’t absolutely quantitative
10:41 – but semi-quantitative. Melissa: Okay. And is that really there to guide clinicians because
10:47 – they’re used to seeing that kind of thing or do you think it has relevance to how they make their decisions?
10:54 – Dr. Nicholas Sanford: I think it is important to know, I mean, if you’ve got less than ten to the fifth, it might still be something
11:01 – that you need to take a look at. But if you’ve got greater than ten to the seventh, that is obviously a big red flag.
11:11 – Melissa: Okay. Do you see on some test results that there’ll be a high bacterial load of something that is considered beneficial,
11:17 – like lactobacillus? Dr. Nicholas Sanford: So, that’s a good question. I do know that
11:22 – on vaginal swabs, we see lactobacillus very frequently. I don’t
11:28 – know if we see it in a high bacterial load. Melissa: Mm-hmm. A few people asked whether good bacteria are just
11:36 – deliberately not identified because it’s not part of the process or if you think that they’re just not there in most people that
11:42 – do this test? Dr. Nicholas Sanford: Well, this just goes back to what the test is trying to do. So, in a microbiome test, you would expect to
11:50 – see all of those beneficial things there but because we’re trying to zero in on what’s causing infection, we’re looking at who’s
11:57 – most abundant, who’s most dominant and everything that’s falling
12:02 – under 2% relative abundance is getting thrown out because these are things that are so low in abundance. They’re similar in abundance
12:12 – to our reagent contamination. Melissa: So, it’s kind of just considered background noise? Dr. Nicholas Sanford: Yeah.
12:17 – Melissa: Is it normal for bladder organisms to change over time and for test results to also therefore be different each time?
12:24 – Dr. Nicholas Sanford: Absolutely. So, these changes over time like we mentioned before, your diet, your health status, whether you
12:33 – have an infection or not, maybe you have an infection elsewhere in the body, medications you’re taking can alter this. Your environment
12:41 – can alter it. We know that it changes as a function of age. So, we know that it’s very dynamic over time.
12:48 – Melissa: And you mentioned it may be beneficial if you take a sample where you don’t have symptoms because it might represent your
12:55 – normal urinary microbiome. But if that changes all the time, how can you ever know what’s normal for you?
13:02 – Dr. Nicholas Sanford: So, I think if you were doing a test designed for monitoring the microbiome, it wouldn’t be such stark differences
13:09 – from sampling event to sampling event. Melissa: Mm-hmm. Dr. Nicholas Sanford: And this would, of course, depend on the frequency of sampling
13:17 – because we get asked about it quite a bit. We are in the very early stages of developing a new product, and it would be a microbiome
13:24 – test – Mm-hmm. Specifically for monitoring your various microbiomes
13:29 – over time. And you can use this just to help with report interpretation
13:35 – later when you do have an infection, you can see who has suddenly shown up or who is out of balance all of a sudden. You could also
13:43 – look at it to see how your – like if your diet is improving things.
13:51 – Mm-hmm. There are some studies out there that say certain bacteria might be associated with colorectal cancer. And changing your
13:58 – diet – Melissa: Mm-hmm. Dr. Nicholas Sanford: Can help push that in a different direction. So, that’s kind of what we’re looking at. And, as is our policy,
14:08 – we’ll try to make that something that’s available for as many sample types as we can.
14:13 – Melissa: Okay. Yeah. You’ll have to let us know when that becomes available. Another question on the changing urinary microbiome
14:19 – or changing test results. After someone does do a test and with symptoms, how long are those results valid for? Because sometimes
14:27 – we hear from people who have their results and they can’t find a clinician, it might take a month until they see someone that’s
14:33 – willing to look at the results. Dr. Nicholas Sanford: So, I don’t have an exact answer for that,
14:39 – but I certainly wouldn’t act on a result that I’ve had in hand for a week or two.
14:44 – Melissa: Mm-hmm. Dr. Nicholas Sanford: I certainly wouldn’t act on anything that was collected before I had a course of antibiotics.
14:53 – So, I would recommend having that physician or some kind of prescriber
15:00 – lined up beforehand and let them know that this is the test I’m doing and, you know, just
15:07 – so that they’re ready for it. Melissa: Mm-hmm. Dr. Nicholas Sanford: Now, one thing that’s happening, and it’s gonna happen very soon, I think maybe this weekend, we’ve got
15:16 – a new website that’s dedicated to patients. Our previous website was very physician- focused.
15:23 – Melissa: Mm-hmm. Dr. Nicholas Sanford: And we did that because we want physicians to be able to understand what this test does, how it can help
15:30 – and what the limitations are. But we get more and more requests from patients saying can I buy this test? And for a long time,
15:41 – I think, maybe we didn’t do very much direct-to-consumer simply because what are you gonna do with this result after the fact?
15:49 – Melissa: Yeah. Dr. Nicholas Sanford: So, part of trying to ameliorate that a little bit, we’re gonna be working with a telehealth company that is
15:58 – gonna be able to treat based off of our reports. Melissa: Mm-hmm. Dr. Nicholas Sanford: So, if you were to go to the patients.microgendx.com,
16:04 – order a test kit there, you’d have access to a telehealth service that
16:10 – could also act on your report for you. Melissa: That’s really helpful for patients. We can announce that once it’s ready and share the link in the video description.
16:18 – Dr. Nicholas Sanford: Absolutely. Melissa: So, you touched on this already. But if there are multiple
16:23 – organisms listed on the results, is there any indication on the results which one could be causing the symptoms?
16:30 – Dr. Nicholas Sanford: So, no there isn’t. But you or your physician has likely ordered this test because you’re experiencing symptoms
16:38 – of an infection. And typically the dominant organism on the report is going to be the offender because it’s outcompeting all the
16:46 – other beneficial bacteria, and your body’s responding to that with symptoms. There may be cases where certain organisms are
16:53 – always treated regardless of their abundance like if you see chlamydia, that’s gonna get treated.
17:00 – Melissa: Mm-hmm. Dr. Nicholas Sanford: There might also be cases where you see a few, 3 or 4, maybe even five organisms there, and your clinician
17:07 – doesn’t wanna treat it. And that could be for various reasons, you know, to include those organisms might look like part of your
17:14 – normal microbiome. Melissa: Yeah, it’s a complicated topic. It helps to work with a clinician who has a good understanding of it and experience treating
17:21 – based on these types of results. And we’ve been talking a lot about picking up many organisms. But does it ever happen that
17:29 – a microGenDX test is negative? Dr. Nicholas Sanford: Oh, absolutely. We never know if this is a
17:35 – good thing or a bad thing because we do get samples that are tested for cure [Unconfirmed] but I think in terms of our negative rates
17:43 – for urine and semen, it’s about 16% of the tests come back negative. And for vaginal swabs, it’s about 1% negative rate.
17:53 – I think we’ve touched on it a little bit, but those negatives might occur because there’s inhibitors in the sample. The organisms
17:59 – might be below the limit of detection or the DNA is highly degraded. Melissa: Mm-hmm.
18:06 – Dr. Nicholas Sanford: Sampling is also very important. If you didn’t get any organism in the sample then it’s gonna come back negative.
18:12 – Melissa: When that happens do you recommend that people retest? Dr. Nicholas Sanford: I think so. I think it’s something that may
18:18 – be discussed with your doctor because NGS does have a very high negative predictive value, meaning that if NGS is negative, then
18:28 – it’s reliable. Now, the reason I say involve your doctor is because it could be an issue with the sample collection. It could be maybe
18:37 – time of day. It could be some other etiology. Melissa: Mm-hmm. Dr. Nicholas Sanford: So, these are things that we don’t have information
18:45 – about. So, that’s something that you have to discuss with your doctor. Melissa: Okay. So, looking at the report can you explain the antibiotic
18:54 – recommendations and what the letters and the ticks mean? Dr. Nicholas Sanford: Sure. So, if we’re looking at that antimicrobials
19:02 – for consideration, I said that this looks like an AST. It is not. Those checkmarks are just indicating that a wild-type E. coli
19:13 – has been shown to be susceptible to aminoglycosides. Melissa: Mm-hmm. Dr. Nicholas Sanford: If you see like we’ve got information about
19:20 – gram stain and respiration on there, there is a key at the bottom of the first page of the report that shows you what all those
19:26 – abbreviations are. When resistance is detected, there won’t be any checkmarks. Those boxes will be grayed out. Mm-hmm. And the
19:35 – text will be highlighted in red. There will be an R for resistance there, kind of indicating to the physician like you wanna avoid
19:41 – using this compound because resistance is present. Melissa: And the IV and PO letters underneath that?
19:48 – Dr. Nicholas Sanford: So, that is just the route of administration. So, one is intravenous and one is oral.
19:53 – Melissa: And I see the antifungals listed at the bottom of that report page. Dr. Nicholas Sanford: For this particular example, there was a Rhodotorula
20:02 – mucilaginosa detected. And for that you know, it has been shown
20:07 – to be susceptible to Flucytosine and Ampho B.
20:13 – Melissa: So, you do provide recommendations for antifungals as well. That’s helpful to know. Can microGenDX provide a referral for
20:19 – a clinician who can interpret the results and prescribe appropriate treatment? Dr. Nicholas Sanford: Yes. On the top right corner of our reports,
20:26 – there is a QR code you can scan, and it will take you to a page where a physician can book a peer-to-peer consultation.
20:35 – Melissa: Okay. And if someone does have treatment prescribed but then it fails to clear the infection, do you recommend testing
20:41 – again? Dr. Nicholas Sanford: I believe so. We’ve learned with these chronic
20:48 – UTIs that sometimes they require a test-treat-test again approach.
20:53 – Melissa: Mm-hmm. Dr. Nicholas Sanford: And this is because on that first round of testing, you identify a dominant organism, and then, you successfully
21:01 – target it with some kind of intervention. But now other organisms which were previously kept in check by that dominant organism,
21:09 – they have room to fill the gaps, so to speak. Mm-hmm. I have heard some physicians talk about treating chronic UTIs, it’s kind of
21:17 – like peeling an onion. You’ve gotta knock it down one layer at a time until its able to recolonize to a healthy
21:24 – Melissa: state. Right. And some patients have indicated that they wouldn’t mind paying
21:31 – out of pocket for this type of testing if they could be certain that it will help. Have you conducted any outcome studies to indicate
21:38 – what the success rate might be of using your test? Dr. Nicholas Sanford: Sure. So, our CEO has been highly committed
21:46 – to research and showing the clinical utility of this test. And I think over the years, we’ve accumulated over 70 publications
21:54 – on the technology. As far as outcome studies go, we don’t have a whole lot there. You know, they’re big, complex, expensive.
22:02 – Melissa: Mm-hmm. Dr. Nicholas Sanford: But we’ve done two that I’d like to talk about. One was published by McDonald et al. in 2017, and what it showed
22:11 – is that NGS based treatments outperformed culture and sensitivity based treatments, as evidenced by better symptom scores and higher
22:20 – detection rates. In 2023, we published another study that was
22:25 – looking at NGS guided prophylaxis for patients undergoing lithotripsy procedures. And what that study showed is that NGS significantly
22:35 – reduced post-op infection rates from 8.5% to 0%. It also improved
22:43 – antibiotic selection and it reduced healthcare associated urinary infections. So, those are two very good studies, I think, that
22:51 – really demonstrate the power of the technology. Melissa: Yeah. Dr. Nicholas Sanford: It’s kind of funny that Michael Lewis [Unconfirmed]
22:58 – study, in 2023, that looked at lithotripsy, it kind of blew us away and it had a little bit of trouble getting
23:05 – through review because a lot of people have a hard time believing that there were no infections.
23:10 – Melissa: Yeah, I can imagine that would have been the case. Dr. Nicholas Sanford: There was in that paper, just in case anyone
23:15 – goes to read it, you will see a modified intent to treat analysis
23:20 – in that paper that shows NGS had an infection rate of 1.3%. That
23:26 – is because one patient did not receive the NGS recommended antimicrobials.
23:32 – Right. And they went on to develop an infection. Melissa: Yeah, that’s an interesting study. We can also share the link to that if you can send it over.
23:39 – Dr. Nicholas Sanford: Absolutely. Melissa: Some clinicians have issues with NGS and they say that
23:45 – it detects DNA from bacteria that has already died. Can you speak
23:50 – to that? Dr. Nicholas Sanford: Sure. Molecular tests can certainly detect DNA from dead organisms, non-viable organisms.
24:00 – Cell-free DNA, though, is susceptible to degradation by nucleases.
24:05 – And we’re using thresholds in our testing to prevent or mitigate the reporting of DNA coming from non-viable organisms. So, those
24:14 – thresholds are the sample first has to make at least a thousand sequencing reads. And then for anything to be reported from that
24:21 – mix of reads, it has to represent at least 2% of the relative abundance. Melissa: Okay. Dr. Nicholas Sanford: We find that does a pretty good job of filtering
24:29 – out DNA coming from those non-viable organisms or low-level sample
24:34 – contaminants. It is a little bit more pronounced in very low biomass samples.
24:40 – Melissa: There’s one more question about antibiotic resistance. So, people often say they don’t have antibiotic resistance. It’s
24:46 – not detected on tests. And then suddenly it will show up at some later point in time and have asked whether antibiotic resistance
24:53 – can develop over time or diminish as well. Dr. Nicholas Sanford: Certainly. Antimicrobial resistance develops
25:01 – under the selection pressure of repeated exposure to antimicrobials.
25:06 – The disappearance of resistance genes can happen naturally, cellular
25:12 – upkeep is expensive. And if it’s not being exposed to something for a long time, it might say, I don’t really need this anymore,
25:20 – but that said, in a clinical context where you’re sampling maybe two weeks apart, a month apart, something like that, I think if
25:28 – you’re seeing something disappear, it’s more likely that some intervention has gotten rid of it. If you see something up here
25:36 – between sampling, it could be one of those scenarios where a dominant organism in the previous test was keeping it in check that was
25:44 – treated, and now this new organism can proliferate. Melissa: Do you often see that with repeat tests, that the organism
25:51 – that was potentially the culprit initially has disappeared, and something else is now a high bacterial load?
25:59 – Dr. Nicholas Sanford: Oh, yeah, yeah. We’ll see that quite often. Melissa: Have there been any large scale trials to compare sequencing,
26:05 – PCR and standard culture? Dr. Nicholas Sanford: Well, there have been a lot of studies of
26:11 – diagnostic accuracy comparing the three methods, and they mostly have the same outcome. And that’s that the molecular methods are
26:19 – significantly more sensitive than culture and sensitivity.
26:24 – But NGS kind of wins out because of the cultivation bias of culture
26:31 – and sensitivity and the panel bias of PCR. The other thing and what you commonly hear, the biggest objection
26:40 – to NGS is that it’s going to report too many things. Melissa: Mm-hmm. Dr. Nicholas Sanford: Yep. And these are gonna be considered false
26:46 – positives. False positives are measured through specificity of
26:52 – the test. So, if you look at all these studies of diagnostic accuracy, comparing them, there is no significant difference between the
27:01 – methods and the specificity of these tests. So, culture has just as many false positives as NGS.
27:07 – Melissa: Mm-hmm. That doesn’t surprise me. So, let’s move on to some of the practical aspects of the test. People had some questions
27:15 – about insurance and clinician adoption. So, a lot of people have said that many clinicians are skeptical about testing beyond standard
27:23 – culture, which we know has many inadequacies, as we’ve discussed. How is MicroGenDX tackling this problem and raising awareness
27:30 – among clinicians? Dr. Nicholas Sanford: So, we have a national sales force that goes out and visits physicians at their offices and in the hospitals.
27:39 – We also are working hard on social media trying to get our presence
27:45 – out there. We attend all of the major medical conferences. And
27:51 – we do, not just the major national ones, but we also go to a lot of local regional conferences as well. I think, of the biggest
28:02 – thing that we’re trying to do to reach the clinicians themselves is our research. So, we invest a lot in these studies. And I think
28:11 – right now we’ve got about 40 that are ongoing. So, that’s what
28:16 – we really try to do. It’s just not just reach out to them and say, hey, we’ve got this cool test. We like to reach out and say,
28:23 – we’ve got this cool test, and here’s some data about it. Melissa: Mm-hmm. Dr. Nicholas Sanford: You can find a whole lot of information on
28:28 – our website. I also like to encourage all of my friends and family,
28:34 – like if you go to your doctor for an infection, ask them if they know about NGS, first of all.
28:40 – Melissa: Mm-hmm. Dr. Nicholas Sanford: I think a lot of physicians are starting to become more familiar with it. Covid helped in one way and that
28:49 – everybody now knows what PCR is. Melissa: Mm-hmm. Dr. Nicholas Sanford: So, I think we’ll start getting there to where
28:56 – there is a little bit more understanding of what the test is, how it works because this is still not really even taught in med
29:03 – school. Melissa: Yeah. Dr. Nicholas Sanford: So, it’s new to a lot of people and changing
29:08 – medicine is difficult. Melissa: Mm-hmm. It does take a long time. And, I mean, that’s another
29:13 – question too, changing insurance companies. Can you provide any insight into whether insurance companies do cover MicroGenDX testing?
29:22 – Dr. Nicholas Sanford: Yes. We are covered by Medicare and our PLA
29:27 – code is on the Medicare fee schedule is payable code. We do have a team working to get that PLA code added to as many other fee
29:35 – schedules. So, it’s covered by as many insurers as possible. We’re
29:43 – reaching out to insurance companies now and giving them a copy of the IDSA guidelines that are now recommending NGS for a lot
29:50 – of infection types to try to combat this denial for it being investigational
29:58 – or experimental. Melissa: Yeah, I think that’s really important step to take. A lot
30:03 – of patients can’t access testing just because of the cost and because of the lack of insurance coverage. So, it’s a big deal.
30:10 – Mm-hmm. Are patients able to get in touch with MicroGenDX if they have questions about their results or specific questions about
30:17 – treatment options? Dr. Nicholas Sanford: Absolutely. We have a very knowledgeable customer service team that can answer just about any question you throw
30:26 – at them. And if for any reason they can’t, the call will get escalated to me or someone else in the technical staff to go ahead and answer
30:34 – that for you. Melissa: Okay. That’s great to know. And we got some questions about international shipping and testing. Some of this information is
30:42 – on our website, but I thought it would be worth covering while we have you. Is it possible to order microGenDX testing outside
30:48 – the US? Dr. Nicholas Sanford: It is. Our testing is currently available through labs in the UK, Canada and Peru, and we’re in the process
30:57 – of establishing labs in Germany, Brazil and Dubai. At the moment
31:03 – we’re not shipping to China, excluding Hong Kong, Africa, India,
31:08 – Russia, Ukraine and Hungary. Melissa: Okay. And when you say you have labs in those other countries,
31:14 – does that mean the samples do not get shipped back to the states? Dr. Nicholas Sanford: Yeah, they’re gonna be processed. It’s
31:23 – a little bit – it’s set up differently in the different places. So some of it comes to us, some of it is an actual facility being
31:31 – set up there – Melissa: Okay. Dr. Nicholas Sanford: So, that it won’t have to ship as far. Melissa: Mm-hmm. Dr. Nicholas Sanford: I think eventually the idea is to have a few
31:39 – labs located around the world to mitigate the shipping time.
31:44 – Melissa: Yeah. Dr. Nicholas Sanford: And they would all be MicroGen labs or it would be a lab that’s, you know, licensed our technology. And
31:52 – when we do that, we will go send a team to train them up, show
31:57 – them how to run our test basically. Melissa: Right. Dr. Nicholas Sanford: And usually the analysis is something that
32:03 – would be done over the cloud. Melissa: Okay. That will make a big difference to patients if they
32:08 – don’t have to pay international return shipping. Dr. Nicholas Sanford: Absolutely.
32:13 – Melissa: How does that work at the moment, though, for samples that do need to be returned from international regions? Do you provide
32:20 – instructions in a way for patients to organise that through your website? Dr. Nicholas Sanford: Well, a little bit. So, patients can choose
32:28 – their own carrier for return shipping. We found that Fedex may not be the best option in some countries.
32:34 – Melissa: Okay. Dr. Nicholas Sanford: We do provide customs documentation, and Canadian patients still have the option of purchasing a return Fedex label.
32:43 – I must say that we’re not responsible for any delays or issues at customs.
32:49 – Melissa: Yeah, I think that could be an issue in multiple countries. And we did get a few questions from the UK about whether MicroGenDX
32:57 – may be covered under the NHS at some point in the future. Is that something that you’re working on or will ever be possible?
33:03 – Dr. Nicholas Sanford: That would be great but we haven’t had any of those discussions so far. Melissa: Okay. And the same for the Canada Public Health System.
33:11 – Will it be covered under that at some point? Dr. Nicholas Sanford: I don’t know. Again, we’d love it to be, but
33:17 – it’s not a discussion we’ve had yet. Melissa: Are you aware of any insurers outside the US that cover
33:24 – MicroGenDX? Dr. Nicholas Sanford: I am not. Melissa: Can you provide any references for patients to share with
33:29 – insurance companies that deem the test as investigational, and therefore won’t cover it?
33:34 – Dr. Nicholas Sanford: Sure. We have a section on our website that’s dedicated to insurance denials.
33:40 – Melissa: Okay. Dr. Nicholas Sanford: So, we have our CMS PLA code, which means that Medicare Part B or traditional Medicare covers our test.
33:49 – Calling the test investigational is just a way for insurance companies to get out of covering the test.
33:56 – Melissa: Mm-hmm. Dr. Nicholas Sanford: Medicare Advantage plans are supposed to follow CMS guidelines and cover the same tests as traditional Medicare.
34:03 – They choose not to. Patients have been successful in fighting the advantage plans and getting coverage.
34:09 – Melissa: Okay. Dr. Nicholas Sanford: And we provide all those tools on our website. Melissa: And a few patients asked if they can just help in general
34:15 – with getting insurance companies to cover this type of testing? Dr. Nicholas Sanford: Absolutely. Write to your insurance company
34:21 – and demand that they cover your test. Tell them about your journey of suffering and how many cultures have you had done. How many
34:28 – antibiotics have you taken. Melissa: Mm-hmm. Dr. Nicholas Sanford: You can also go to change.org and sign Carrie
34:34 – Anne’s petition. Melissa: Yeah. We’ll definitely put that link in the description.
34:40 – Well, that brings us to the end of our questions. I wanted to thank you again for sharing your time with us to get them all
34:45 – answered. Dr. Nicholas Sanford: Well, thanks for having me. It’s been fun. Melissa: Thanks so much for watching. I hope part two of this interview
34:51 – provided you with new insights about UTI testing. If you’d like to learn more about this or related topics, be sure to check out
34:57 – our other videos or head over to liveutifree.com for more articles related to this video. We’ll also add some links in the description.
35:04 – If you like what we’re doing on this channel, be sure to hit subscribe and tick the bell so you can be notified of our future content.
35:09 – Thanks so much for watching. And until next time, keep asking questions and pushing for better solutions..
Key Take Aways
Antibiotic Resistance Testing Differences
Prevalence of Polymicrobial Infections
Rapid Diagnostic Turnaround Times
Dynamic Urinary Microbiome Changes
Test Treat Retest Approach
Filtering Non Viable DNA

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