+100%-

Geoff’s Narration

The GIST

 

“For me, the risk is small and the (potential) benefit is huge.” Dr. Kaufman

We’re back, focusing on GLP-1-enhancing drugs. Why another GLP-1 blog? Because new information keeps pouring out. Plus, these surprise drugs constitute perhaps the most exciting treatment possibility ever seen in ME/CFS, FM, long COVID, and related diseases. They appear to have engaged the complex, chronic illness experts like no others.

idea light bulb

Suddenly, a new treatment possibility showed up.

In fact, these drugs have pretty much wowed the medical world. Created to combat obesity and diabetes, GLP-1 agonists are now being assessed in dozens of disorders. Besides maintaining blood sugar or losing weight, they are able to affect our metabolic, cardiovascular, and even neuroinflammatory systems.

 

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This blog covers a recent Renegade Research Roundtable, two studies reporting on the effects of GLP-1 agonists on people with mast cell activation syndrome (MCAS) and intracranial hypertension, and two major GLP-1 long-COVID trials getting underway.

The Renegade Research Roundtable

 

idea light bulb

Suddenly, a new treatment possibility showed up.

THE GIST

  • We’re back, focusing on GLP-1-enhancing drugs. Why another GLP-1 blog?  Because new information keeps pouring out. Plus, these surprise drugs constitute perhaps the most exciting treatment possibility ever seen in ME/CFS, FM, long COVID, and related diseases. They appear to have engaged the complex, chronic illness experts like no others.
  • In fact, these drugs have pretty much wowed the medical world. Created to combat obesity and diabetes, GLP-1 agonists are now being assessed in dozens of disorders. Besides maintaining blood sugar or losing weight, they are able to affect our metabolic, cardiovascular, and even neuroinflammatory systems.
  • This blog covers a recent Renegade Research Roundtable, two studies reporting on the effects of GLP-1 agonists on people with mast cell activation syndrome (MCAS) and intracranial hypertension, and two major GLP-1 long-COVID trials getting underway.
  • Dr. Dempsey described how a woman with a traumatic brain injury (TBI) and a woman with postural orthostatic tachycardia (POTS) responded. After being put on the full dose (2.5mg) the TBI patient experienced nausea but persevered and found that 2-3 hours after taking the drug her brain fog completely disappeared and she was could focus and work like before. A POTS patient who needed to take 2-3 times more time to get her college work done, reported she no longer had brain fog and was able to do her work in a third of the time.
  • With side effects not usually a problem at low doses and improvements often seen, Dr. Dempsey and Dr. Kaufman are using these drugs very early in their patients’ treatment. Dr. Kaufman said he was particularly considering doing so in his more severely patients. Dr. Dempsey said, “It was pretty mind-boggling to see the response and the fact that it was global, it was systemic, and pretty quick”.
  • Dr. Dempsey also noted that the drug doesn’t work on all patients and that some patients cannot tolerate even the small doses being used. She does not consider these drugs cure-alls and advises that everyone “should go down this path cautiously”.
  • Dr. Kaufman’s biggest concern with increasing the dose and producing side effects is not weight loss but gut motility. On the other hand, Dr. Dempsey reported that many of her patients with gut motility issues are doing well on the low doses of the drug being used, and a mast cell paper reported that reductions in nausea were common.
  • Kaufman believes that by reducing systemic inflammation, GLP-1 agonists are targeting one of the root causes of these diseases and helping fight reactivated pathogens such as EBV.
  • Dr. Dempsey believes the drug binds to mast cell receptors and blocks the release of inflammatory mediators. A recent explored the effects GLP-1 agonists had on a case series of 47 patients with mast cell activation syndrome (MCAS).
  • The paper reported on “the remarkably high rate of favorable responses we have seen from ad hoc use of such drugs in the cases presented here of MCAS“. It stated that “overall clinical benefit” was found in 89% of patients.
  • The six case reports in the paper demonstrated the wide range of effects these drugs can have. Some case reports involved MCAS patients who took the standard dose to lose weight and experienced other kinds of relief. Others included MCAS patients who benefited from low doses of the drug. (See the blog.)
  • A systematic review found that these drugs might be helpful in intracranial hypertension, a condition that appears to be widespread in these diseases. One small study, found they were associated with significantly reduced pain, fatigue, and opioid dependency in fibromyalgia (FM).
  • In my experience, the biggest problem facing patients is how to use the drug. Three possibilities exist: compounded drugs, vials, and autopens. All present issues.
  • Because as of early 2025, semaglutide and tirzepatide were being removed from the shortage list, they are no longer legally available to be compounded. While some compounding pharmacies may still carry them, most patients will have to rely on autopen devices, which provide higher doses than typically used in ME/CFS, or vials.
  • Because the autopens have internal mechanisms that control both the plunger travel distance and injection volume, it’s not possible to accurately give yourself a half or a quarter, etc. dose.
  • Autopens containing semaglutide (Ozempic, Wegovy) can deliver lower doses (0.25/0.5 mg), but note this is the starting dose for type II diabetes; i.e. it’s probably every bit as powerful as the 2.5mg dose of Mounjaro.
  • Some countries, like Australia, have Mounjaro (the doctor’s first choice) pens, which allow you to determine how much of the drug to use. The lowest Mounjaro autopen dose available in the US, though, is a whopping 2.5 mg.
  • Lily Pharmaceuticals also offers vials that allow a syringe to draw low doses. It’s not clear how long they will last. It’s also possible to use an insulin syringe to draw the drug out of some autopens.
  • Some compounding pharmacies may still offer the drugs. Patients should be careful that they are translating the units correctly as some people have injected themselves with too high concentrations of the drug. (See the blog.)
  • The NIH’s RECOVER Initiative for long COVID demonstrated great initiative by using patient and physician reports to initiate a GLP-1 agonist. Dr. Kaufman reported that after embracing doctors’ and patients’ reports and launching the trial, RECOVER will be using far higher doses (0.1-.25mg vs 2.5 mg) in their long-COVID trial. A 1,000-person Scripps long COVID trial is doing the same.
  • With regard to RECOVER, this is apparently because “trials funded by NIH must use doses that have an established toxicology and pharmacokinetic profile already accepted by FDA”.
  • Dr. Kaufman noted that it’s possible that starting at 2.5mg might work – it’s just that no one has tried. (The mast cell paper mentioned several obese patients who tolerated the standard dose quite well.) Still, it’s a big risk as Dr. Kaufman worried that so many patients will drop out that the drug will be considered a failure.
  • The Scripps fully remote Long COVID Treatment or LoCITT (“Lock-it”) trial has a lot going for it. Anyone in the US can participate in the year-long study; no in-person visits are required, symptom and activity trackers and smart scales will be used, and a few people will provide blood for labs. Check out if you’re eligible for the trial here, and check out a webinar on the study in the blog.
  • However, the GLP-1 saga turns out, the fact that these drugs have popped up seemingly out of nowhere, and have generated such excitement, highlights the potential existing in the huge repurposed drug (drugs used in another condition than for which they are approved) market for these diseases. Looking at this new class of drugs, nobody thought – oh, man – we’ve got to try these drugs out in ME/CFS/long COVID or fibromyalgia – and yet here we are. More and perhaps better GLP-agonists are on the way.

 

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Renegade Research Roundtable

Dr. Dempsey described the experiences of two very different patients with extraordinary improvements in brain fog and cognitive functioning, as well as other symptoms.

Traumatic Brain Injury – In the Renegade Research Roundtable, Dr. Dempsey described what happened with a long-term, difficult-to-treat patient she’d been treating for about 20 years.

She was a 40-year-old woman who was left with a traumatic brain injury after a car accident in her twenties. (Traumatic brain injuries often produce symptoms similar to those found in ME/CFS/FM and long COVID.) Her case was complicated by a history of infections (Bartonella), and she had particular problems with word finding and brain fog.

Over time, she had gained weight and used the drug to address that. After being put on the full dose (2.5mg), she experienced nausea but persevered and found that 2-3 hours after taking the drug, her brain fog completely disappeared and she could focus and work like before. While she never lost much weight, she was so happy with the results that she didn’t care.

Postural Orthostatic Tachycardia Syndrome (POTS) – A POTS patient who needed to take 2-3 x’s more time to do her college work, reported she no longer had brain fog and was able to do her work in a third of the time. Her improved numbers on the NASA lean test suggested her brain was getting more blood flows. Noting the drug’s anti-inflammatory effects, Dr. Dempsey suggested it may be reducing neuroinflammation.

Doctors Move These Drugs To the Top of the List

moving forward

A new treatment possibility is causing some doctors to use it early and often.

ME/CFS/FM and long-COVID doctors are inherently conservative – not in the range of treatments they use – but in how they use them. They tend to introduce them slowly so as not to spark a bad reaction. At least for these two doctors, the trial period appears to be over. They are introducing them early in their protocols.

Dr. Dempsey said, “It was pretty mind-boggling to see the response and the fact that it was global, it was systemic, and pretty quick”. She, like Dr. Kaufman, has moved GLP-1 agonists way up on her protocol. Both are considering using it very early with their patients. Why, Dr. Kaufman said, make the patient wait, particularly since at very low doses, side-effects are usually not a problem?

In good news, for more severely ill patients who can tolerate little, side effects don’t appear to be much of a problem. When asked if the drug was suitable for mostly bed or housebound patients, Dr. Kaufman gave what has become a rather familiar answer, and which shows what a core part of his treatment regimen, tirzepitide (Mounjaro) has become.

If he’d been asked that question 8 months ago, he would have waited 3, 4, 5, 6 or months to see if other treatments worked. Not anymore – particularly in more severe patients – he’s ready to try to the drug sooner. He believes GLP-1 agonists should “be tried sooner rather than later”. Referring to the risk/benefit analysis that all doctors do with their patients, he’s found that the potential risk is small and the potential benefit is huge.

He’s had a similar experience with mast cell treatments. Before he would have started with an antihistamine and two receptor blockers like Zyrtec and Pepsid. If that didn’t work he would add a flavonoid, then a mast cell stabilizer, etc. Now, if he has a good reason to think a drug like Cromolyn would work faster, he’s just going for it.

Dr. Dempsey also noted that the drug doesn’t work on all patients and that some patients cannot tolerate even the small doses being used. Everyone “should go down this path cautiously”.

Gut Tweaker / Gut Enhancer?

Dr. Kaufman’s biggest concern with increasing the dose and producing side effects is not weight loss but gut motility – a common problem. The MCAS paper suggested that “MCAS-targeting ‘rescue’ therapy” (e.g., extra doses of H1/H2 receptor blockers) can help.

On the other hand, Dr. Dempsey reported that many of her patients with gut motility issues are doing fine on the low doses of the drug being used, and the mast cell paper reported that “9 of 14 of the patients in its case series with baseline nausea experienced reduced nausea after taking the drug”. Indeed, GLP-1 agonists appear to be helpful for gastrointestinal diseases such as IBS, ulcerative colitis, and Crohn’s disease.

Systemic Inflammation Reducer?

Kaufman believes that by reducing systemic inflammation, the GLP-1 agonists are getting at one of the root causes of these diseases. (GLP-1 agonists appear to be helpful in a wide variety of inflammatory diseases and have been found to effect multiple immune pathways including tumor necrosis factor alpha (TNF-α) and nuclear factor kappa beta (NF-κβ) inhibition and NLRP3 inflammasome and IL-1B suppression.) While he doesn’t have proof of it, he believes the inflammation reduction is allowing the immune system to recover and keep the infections under control.

red blood cells immune system

Dr. Kaufman believes reducing inflammation may be allowing the immune system to recover – enabling it to now fight off pathogens.

Dr. Malcolm chimed in, stating that he has quite a few patients who got sick hiking abroad and we have no idea what kinds of infections they have picked up. Malcolm noted that David Putrino recently talked about the incidence of bartonella infection in long COVID.

Dr. Kaufman focused on the immune system. He noted that EBV probably reactivated in most people with COVID-19, but that only about 10% went on to develop long COVID. Instead of focusing only on bringing EBV or Lyme or whatever it is that got reactivated down, Kaufman asserted that finding ways to get the immune system up to speed is probably more fruitful in the long run. Once the immune system is in shape, it can keep the bug locked down.

By increasing autophagy and decreasing inflammation, he believes that rapamycin is doing something similar. Studies have shown that rapamycin improves immune functioning and reduces the incidence of infection. (A rapamycin blog is coming up.)

Mast Cell Blockers

Dr. Dempsey believes the drug binds to mast cell receptors and blocks the release of inflammatory mediators. She was a co-author on a recent paper, “Utility of glucagon-like-peptide-1-receptor agonists in mast cell activation syndrome”, which explored the effects GLP-1 agonists had on a case series of 47 patients with mast cell activation syndrome (MCAS).

The doctors reported on “the remarkably high rate of favorable responses we have seen from ad hoc use of such drugs in the cases presented here of MCAS” and stated that “overall clinical benefit” was found in 89% of patients. They asserted that the “the high clinical benefit rate from GLP-1RA therapy in our series raises a clarion call for rigorous, systematic investigation to define what the appropriate roles for such treatments in MCAS actually will be.”

Mast Cell Case Reports
mast cell

Dr. Dempsey and Dr. Kaufman believe the drug may be blocking mast cells from activating (gold – mast cell; blue – histamine).

The case reports provided suggested these drugs can produce a wide range of benefits. Several of these cases involved people with MCAS who were taking the drugs for obesity at the standard dose. While dramatic improvements were reported, some symptoms tended to remain. Interestingly, the obese MCAS patients tolerated the high dose quite well, while others did fine on lower doses.

  • A 24-year-old with chronic inflammatory problems since infancy, who had tried many treatments, found that within hours of taking .25mg, his hunger and blood pressure had normalized, and his fatigue, brain fog, and inflammatory issues were substantially reduced. Every increase in dose brought improvements and he settled in a .75mg.
  • A 42-year-old female with longstanding profound fatigue, chronic pain, asthma, multiple food intolerances, GI symptoms including diarrhea, urticaria, food cravings, weight gain, and migraine who was essentially housebound due to constant exhaustion (she estimated 30% of normal energy) took tirzepitide at 3.75 mg principally to address obesity. Within days of the first dose, she gained great improvements in essentially all symptoms and was no longer housebound. Dosing was later increased to 5mg, each time with additional improvement and only transient mild nausea with the initial dosing.
  • A 41-year-old woman with brain fog, insomnia, vertigo, neuropathic symptoms, blood pressure lability, postural orthostatic tachycardia syndrome (POTS), dermatographism, macular erythematous rash, flushing, burning skin, severe gastroesophageal reflux, migratory joint pains, vaginal pruritus, intermittent hoarseness, and chemical sensitivity. Within hours of the first dose, all troublesome symptoms had substantially improved or resolved.
  • A 50-year-old obese woman with dysautonomia, unexplained dyspnea at rest, orthostatic dizziness, fatigue, brain fog, acid reflux, nausea, POTS, hypermobility and headache of post-viral onset. Tirzepitide 2.5mg to address her weight gain was increased to 5mg once weekly, resulting in at least 65–70% improvement in her symptoms, including fatigue and cognitive impairment. She felt she was being productive for the first time in years.
  • A 63-year-old female with allergic and asthmatic symptoms since childhood, fibroids, Hashimoto’s thyroiditis, experienced diffuse body aches and bone pain, insomnia, brain fog, bloating, food sensitivities, and a need to eat every 2–3 hours. She did not respond to mast cell treatments. Weekly tirzepitide shots immediately brought significant relief of pain, insomnia, and glycemic lability, but her symptoms reliably relapsed shortly before the next dosing. Dosing was changed to 2mg twice a week and all symptoms have been remained significantly improved.
  • A 62-year-old woman with chronic health problems since the age of 10, who experienced anaphylactic attacks, fatigue, tinnitus, bone pain, itching, and nausea, and was largely housebound, tried semaglutide at 0.125 mg once a week. After her second, she started walking three miles per day, her anaphylaxis attacks improved, and her further pruritus, flushing, diarrhea, or post-prandial abdominal pain disappeared, and she regained tolerance for previously intolerable foods.

Blood Flow Enhancer?

blood flows

GLP-1 agonists may be reducing brain fog by increasing blood flows.

Another person (unidentified) suggested that by decreasing inflammation around the capillaries, the GLP-1 agonists were increasing blood flows.

Dr. Kaufman believes that the fact that GLP-1 receptors are found all over the body explains why these drugs can have so many effects. Even though most of these drugs do not cross the blood-brain barrier, brain fog is often one of the first symptoms affected and may be due to improvements in blood flows.

Intracranial Pressure Reliever?

Dr. Dempsey reported that the GLP-1 agonist Zepbound removed the high intracranial pressure in one patient. Indeed, a recent systematic review found that “GLP-1 RA use was consistently associated with improvements in headache frequency, weight reduction, and reduced need for acetazolamide or surgical interventions. One small randomized controlled trial found that “exenatide significantly lowered ICP within hours”. Other studies have reported that papilledema (swelling of the optic disc in the eye due to increased intracranial hypertension’) was removed. Cognitive function either improved or remained stable. Mild gastrointestinal symptoms were the main side effect.

Because high intracranial pressure appears to be very common in these diseases, relieving it could be a big deal.

Under Pressure: Large Spinal Study Finds Intracranial Hypertension Common in ME/CFS

Fibromyalgia Anyone?

What about the mostly forgotten player in the complex, chronic disease (CCD) field – fibromyalgia (FM)? Except possibly for long COVID, more people have FM than any other CCD, yet we hear little about it. One small study, however, found that GLP-1 agonists were associated with significantly reduced pain, fatigue, and opioid dependency.

There’s also the osteoporosis factor. Studies indicate that people with FM are at increased risk for osteoporosis and while it’s early days, some studies suggest these drugs may be able to increase bone formation.

Using the Drug

question mark

Figuring out how to use drugs that are in available in much higher concentrations than the doctors use has been a challenge.

In my experience, the biggest problem facing patients is how to use the drug. I don’t know if these doctors realize how difficult it’s been for patients to find a way to use these drugs at the low concentrations they recommend. It would be great if someone would put out a sheet describing how these drugs are being used.

Three possibilities exist: compounded drugs, vials, and autopens. All present issues.

Five different GLP-1 agonists have been FDA-approved, and doctors have focused mainly on one – tirzepitide (Zepbound/Mounjaro). Others may be as effective. The dosing regimens for these drugs vary dramatically. For Type II diabetes, tirzepitide starts at 2.5mg injection weekly for four weeks and goes up from there. Semaglutide (Ozempic, Wegovy) starts at .25mg/week and then goes up from there. All the drug protocols feature a 4-week stabilization period and then titrating up after that.

Compounded formulations can be found here and there, but are now basically illegal – and hard to find. (When I asked ChatGPT to find compounding pharmacies that provide GLP-1 agonists, it could not produce any.) That means most patients will have to rely on autopen devices, which provide higher doses than typically used in ME/CFS, or vials.

Autopens

Autopens containing semaglutide (Ozempic, Wegovy) can deliver lower doses (0.25/0.5 mg), but note that this is the recommended starting dose for type II diabetes, so it’s probably every bit as powerful as Mounjaro’s 2.5mg starting dose.

Some countries, like Australia, have Mounjaro (the doctor’s first choice) pens, which allow you to determine how much of the drug to use. The lowest Mounjaro autopen dose available in the US, though, is a whopping 2.5mg. Because the autopens have internal mechanisms that control both the plunger travel distance and injection volume, it’s not possible to accurately give yourself a half or a quarter, etc. dose.

Why has Mounjaro been preferred? Because Mounjaro has one more GLP-1 receptor agonist than semiglutide (Ozempic, Zepbound) it may be more effective. It’s also simply the drug both doctors are most familiar with. Other GLP-1 agonists have been helpful, though.

Getting Really Low – The very low doses these doctors often start their patients off on (0.1mg) means either a compounding pharmacy needs to be found or insulin syringes are used to draw the drug from the pen or from a vial. (The insulin syringe technique will only work if the pen has a removable cap and rubber septum.

Figuring out the correct dose from an autopen to an insulin syringe is no easy task. I know of somebody who prepared an Excel spreadsheet in an attempt to figure it out and even then, they’re not sure if it’s correct. It appears to be far easier to buy a vial.

Lily Pharmaceuticals offers Zepbound/Mounjaro in vial form (5mg/ml, 10 mg/ml, 12.5 mg/ml)- allowing the use of syringes to fine-tune doses.  According to ChatGPT this is the formula to determine the correct dose

Then, if you’re using a U-100 insulin syringe, you convert the mL’s to the units/lines on the syringe.

Units =

In other words, if you purchase a 10mg/ml bottle….

  • .10 gm dose – If 1 mL=100 units, then a .10mg dose (0.10 / 10) × 100 = 1 unit. To get his lowest dose you would fill the insulin syringe to 1 unit or the first line on the syringe. You can see how low a dose this is. You couldn’t calculate a lower dose using a standard I mL syringe. (You can purchase smaller syringes). 
  • .25 mg dose  – If 1 mL=100 units, that an .25 mg dose (0.25/10 x 100 = 2.5 units. You would draw up to 2½ units (about midway between the “2” and “3” marks).

Note, though, that depending on which vial of tirzepatide you purchase the calculation changes.  ChatGPT created this table to show.

The vials should be refrigerated. I have been told that Lily states that the vials – which do not have a preservative – last for a month. Since a 10mg/ml vial contains 100 doses at the lowest dose (.10 mg) and 25 at the next lowest dose (.25 mg), it has far more of the drug than you could use in a month (1 dose a week). Some people are experimenting to see if the vials last longer.

PrecisionAI reported that prices in the US for vials are quite reasonable if you can get a good number of doses out of them.

  • 5mg/0.5ml vial: Approximately $110–$141 per vial (or $1,000+ per box of four vials for U.S. retail pricing)

  • 10mg/0.5ml vial: Approximately $150–$154 per vial

Compounded Forms

Using a low-dose compounded formulation is the most straightforward. Drug companies are cracking down on compounding pharmacies, but some apparently still provide the drug. (Diane reported that compounded drugs are “easily found legally in the US through many telehealth providers. Search Reddit: r/compoundedtirzepatide) (Because compounding pharmacies can legally produce drugs if the drug is not available, one would think compounding pharmacies might have an out, given that low-dose formulations of the drug are not available).

The biggest problem for Dr. Kaufman with the compounded medications is translating from milliliters to milligrams and/or units. Enough dosing errors have been reported with compounded GLP-1 injectables (mis-calculated concentrations, wrong syringes, unit mix-ups) that in 2024, the FDA published a warning. At times, patients have accidentally injected five to 20 times more than the intended dose of semaglutide (!). Note that “units” refer to the lines on the syringe; one line = one unit.

dosing syringe

From the FDA report.

Instead of barely filling a U-100 (1 milliliter) insulin syringe to draw a 5-unit (0.05 milliliter) dose some people have injected half the syringe, producing vomiting and other side effects. The FDA stated that compounders should use a 503A-compounded, low-concentration sterile vial and syringes that reflects the prescribed amount; i.e., the prescription is listed in mg/ml, and the syringe gradations match the prescription.

A 10ml prescription should come with syringes that have 0.01ml gradations; i.e., it should come with a 1ml syringe which is broken up into tenths and hundredths of a ml. 1 ml insulin syringes are readily available on Amazon.

Large RECOVER and Scripps GLP-1 Agonist Long-COVID Studies Buck Expert’s Recommendations

The NIH’s RECOVER Initiative for long COVID demonstrated great initiative by using patient and physician reports to initiate a GLP-1 agonist. Dr. Kaufman reported that after embracing doctors’ and patients’ reports and launching the trial, RECOVER is not following ME/CFS and long-COVID doctors’ experience when it comes to running the trial.

Both the RECOVER and Scripps long COVID trials are using far higher doses than cautious ME/CFS/long COVID doctors do. Let’s hope it works!

RECOVER long COVID will be using a far higher starting dose (2.5 mg) than ME/CFS/long-COVID doctors are using. Not just a little higher. If my math is right, their starting dose is 10-25 times higher than the dose (0.1/.25mg-2.5mg) that doctors have starting their notoriously sensitive patients on.

Gut issues are a big concern with higher doses. A review of GLP-1 agonist studies using the standard dose in high intracranial pressure reported:

“Patients should be counseled about the high likelihood of nausea and GI upset (diarrhea, vomiting, and constipation, delayed gastric emptying) especially in the first 4–8 weeks of therapy. Slow titration of dose can help, as can dietary adjustments.”

The recent mast cell paper suggested:

“significantly lower doses of GLP-1RAs than presently used as starting doses for T2DM and obesity therapy might be sufficient, and even optimal, for MCAS. Such trials hopefully will also identify whether lower doses might thus reduce even further any risks from initial and/or long-term use of such drugs.”

Not the RECOVER or Scripps trials, though. Both appear to be placing all its bets on a very high dose (for this community). Why would they take such a risk? I asked ChatGPT 5.0.

ChatGPT reported that with regard to RECOVER that because “trials funded by NIH must use doses that have an established toxicology and pharmacokinetic profile already accepted by FDA”, RECOVER was in a bind. Even though lower doses are presumably safer, using them would still require a “new pre-IND safety justification, dose-range toxicology studies, and possibly a new manufacturing lot release.” That would add ~1–2 years of delay.

Dr. Kaufman noted that it’s possible that starting at 2.5mg might work – it’s just that no one has tried. (The mast cell paper mentioned several obese patients who tolerated the standard dose quite well. Plus a non-obese mast cell patient, who, due to a pharmacy error, got 2.0mg instead of .75mg, improved further.)

The just-announced 1,000-person Scripps LOCIT trial for long COVID is using the same dose. Dr. Kaufman’s fear is that both trials will fail because too many patients will suffer side effects and withdraw, and the drug will be forever lost to vast majority of long-COVID patients. Let’s hope that both RECOVER and Scripps groups have chosen well.

The Scripps LOCIT Trial

The Scripps fully remote Long COVID Treatment or LoCITT (“Lock-it”) trial has a lot going for it. Anyone in the US can participate in the year-long study; no in-person visits are required, symptom and activity trackers and smart scales will be used, and a few people will provide blood for labs.

Julia Moore Vogel, senior program director at the Scripps Research Translational Institute, noted that “LoCITT enables even patients with the most severe symptoms to join the search for answers.” Vogel, who has long COVID, and Eric Topol are co-principal investigators of the study.

Check out if you’re eligible for the trial here, and check out a webinar on the study.

More GLP-1 Drugs on the Way 

No drug company wants to miss out on GLP-1 bonanza and more drugs are on the way. Orforglipron (oral GLP-1 – Eli Lilly) is expected to receive FDA approval over the next year. A triple agonist (Retatrutide (GLP-1 + GIP + glucagon) is expected in a couple of years, plus oral versions that could help with dosing are expected to come online over the next couple of years as well. At least four other candidates are in trials.

The Promise of Repurposed Drugs 

However, the GLP-1 saga turns out, the fact that these drugs have popped up seemingly out of nowhere, and have generated such excitement, highlights the potential existing in the huge repurposed drug (drugs used in another condition than for which they are approved) market for these diseases. Looking at this new class of drugs, nobody thought – oh, man – we’ve got to try these drugs out in ME/CFS/long COVID or fibromyalgia – and yet here we are.

Other surprises surely await us.

 

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