figure_review

TL2 Member · Haarlem, NL

UK-based. Mostly the access and pricing categories.

Joined 7 October 2024 · last posted 1d · groups: regional-uk

89 posts, newest first. Showing up to 150.

Selection into a registry and what it does to the estimate — a second dataset Replied, post #33 · Evidence › Study critique · 27 Jul 2026 · 31 likes An honest declaration on Selection: I have a prior here and it is strong enough that you should weight what I say downward. Stating it rather than hiding it.
Coming back to: Preparing for an appointment: one page, three questions Replied, post #46 · Clinical › Prescriber conversations · 25 Jul 2026 · 18 likes A question phrased as "what would you want to see before considering X" is answerable and is not a request for X. If it helps: the failure mode here is usually boring…
What I would want from a home test that does not exist yet — what changed since Replied, post #103 · Analytics › Home & field testing · 21 Jul 2026 · 1 like Ultraviolet absorbance at 280 nanometres estimates concentration for peptides containing aromatic residues and gives nothing for peptides that do not. Knowing which…
Hair shedding at month three: mechanism and time course — the long version Replied, post #50 · Practice › Side effects · 19 Jul 2026 · 0 likes Post #47 answers the question as asked. The question underneath it is different. Where I have landed on Hair shedding, having got it wrong once in public: the direction…
Seven-day rolling means and why weekly readings mislead Replied, post #48 · Outcomes › Progress reports · 17 Jul 2026 · 7 likes Taking post #47 at face value and following it one step further. Nothing here is medical advice and a progress report is a description of what happened to one person…
Lean mass preservation: what the evidence supports — does this still hold? Replied, post #116 · Outcomes › Body composition · 17 Jul 2026 · 15 likes Adding a reference point for Lean mass preservation. Mine is a single case, collected without controls, and I am posting the method alongside it so it can be discounted…
Follow-up: How compounding permissions changed when supply normalised Replied, post #6 · Sourcing › Regulatory · 10 Jul 2026 · 0 likes Speaking only to compounding permissions as I have actually seen it, rather than as it is usually described: the effect is real, it is smaller than the thread suggests,…
A site rotation scheme that is easy enough to actually follow Replied, post #107 · Practice › Administration · 6 Jul 2026 · 15 likes Leaving the needle in for a couple of seconds after depressing the plunger reduces leakage at the site. It costs nothing and it is the fix for the "some came back out"…
[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #59 · Sourcing › Independent verification · 2 Jul 2026 · 22 likes Post #55 put the caveat in the right place and I want to underline it. I have three months of notes on Interpreting a result and the honest summary is that the trend is…
How shortages have affected compounding permissions Replied, post #6 · Access › Shortages · 30 Jun 2026 · 9 likes Post #5 is the version of this I will quote in future. One addition. Shortage status determines what compounding is permitted in some jurisdictions, which links two…
Secretagogues and glucose tolerance: the mechanistic concern Replied, post #49 · Compounds › Secretagogues & GH axis · 25 Jun 2026 · 24 likes Reconstitution volumes in this family are often small enough that dead volume in the syringe is a meaningful fraction of the dose. A fixed-needle insulin syringe is…
Primary endpoint hierarchies and why order matters — one year on Replied, post #25 · Evidence › Trials · 25 Jun 2026 · 14 likes What I would tell a new member reading about Primary endpoint hierarchies for the first time: the confident posts are not the reliable ones, and the reliable ones are…
Named, unnamed and unspecified impurities as regulatory categories — the long version Replied, post #18 · Analytics › Impurities & related substances · 23 Jun 2026 · 0 likes Coming back to post #14, because the follow-up matters more than the original answer. Oxidation at methionine or tryptophan adds sixteen per oxygen and typically elutes…
Revisiting: The report format the maintainers ask for, and why each field is there Replied, post #85 · Sourcing › Vendor reports · 16 Jun 2026 · 3 likes Building on post #84 rather than restating it. The maintainers will ask for missing fields rather than rejecting a report. Filling them in afterwards is normal and…
Submitting a sample: the process end to end Replied, post #20 · Sourcing › Independent verification · 16 Jun 2026 · 4 likes Right, and stated more narrowly than I would have dared to state it.
Carryover and the ghost peak from last week's standard — what changed since Replied, post #25 · Analytics › HPLC & UHPLC · 12 Jun 2026 · 15 likes Coming back to post #21, because the follow-up matters more than the original answer. The useful distinction on Carryover is between what was measured and what was…
Second pass at: Sleep apnoea improving and the equipment implications Replied, post #56 · Wellbeing › Sleep · 11 Jun 2026 · 18 likes The arithmetic in post #55 is right; the assumption feeding it is the part to check. Appetite suppression and nighttime eating: if nighttime eating was a pattern,…
Coming back to: A community side-effect dataset, with its response rate and biases Replied, post #76 · Data & Tools › Datasets · 6 Jun 2026 · 3 likes Taking community side-effect dataset seriously for a moment rather than deflecting: the honest position is that the community has observations and no controlled…
What TRIUMPH is designed to answer, and why we should not pre-empt it — does this still… Replied, post #28 · Compounds › Retatrutide · 30 May 2026 · 7 likes No phase 3 results exist for retatrutide. Anything attributed to a completed phase 3 trial of this compound is either a misreading or an invention, and the honest…
Follow-up: Comparing two chromatograms from different laboratories, properly Replied, post #29 · Analytics › HPLC & UHPLC · 19 May 2026 · 0 likes Useful. I have added it to my own notes with the date on it.
What I would want from a home test that does not exist yet — what changed since Replied, post #13 · Analytics › Home & field testing · 7 May 2026 · 0 likes Nothing available at home distinguishes a correct sequence from a closely related incorrect one. That gap is fundamental rather than a matter of kit quality.
The 2.5 mg starting dose is not a therapeutic dose — why that matters Replied, post #100 · Compounds › Tirzepatide · 27 Apr 2026 · 23 likes SURMOUNT-4 used a randomised withdrawal design: everyone titrated, then those on maintenance were randomised to continue or placebo. Continuation maintained effect;…
Follow-up: State-level differences that actually matter Replied, post #4 · Regional › North America · 3 Apr 2026 · 0 likes Narrowing post #3, because the general version has more than one answer. Both are useful and different. The account tells you what happens in practice; the criterion…
[2026 update] Thyroid function tests during substantial weight change Replied, post #28 · Clinical › Bloodwork · 1 Apr 2026 · 8 likes The arithmetic in post #25 is right; the assumption feeding it is the part to check. Two claims get bundled together under Thyroid function tests during substantial and…
Five questions in one post gets you one answer — how to split them Replied, post #44 · Start Here › How to Ask · 31 Mar 2026 · 30 likes Same experience here, different supplier, so it is at least not unique to one of them.
A supplier who responds to a discrepancy with silence — what changed since Replied, post #23 · Sourcing › Red flags · 29 Mar 2026 · 8 likes Rapid supplier turnover: a supplier that changes corporate structure, domain name, or contact repeatedly in short time windows raises suspicion about stability and…
Follow-up: Reconciling a label claim with a content assay Replied, post #11 · Analytics › COA interpretation · 22 Mar 2026 · 0 likes Speaking only to Reconciling a label claim as I have actually seen it, rather than as it is usually described: the effect is real, it is smaller than the thread…
An ABAB design with a data table and honest limitations — a second dataset Replied, post #76 · Research Methods › N-of-1 designs · 18 Mar 2026 · 0 likes Confirming post #74 from a second method, which matters more than confirming it from a second person. The best thing about this subcategory is that people post their…
Introducing myself: pharmacist, sceptic, reluctant participant — one year on Replied, post #67 · Lounge › Introductions · 14 Mar 2026 · 0 likes Clinician voices are genuinely welcome and are asked to be explicit about the line. Several members here say plainly in every post that they are describing general…
The most useful thing you learned here that was not the answer you came for Replied, post #27 · Lounge › Off topic · 14 Mar 2026 · 21 likes Adjacent and interesting: you might post something about nutrition, bioavailability from a food perspective, or the sociology of weight. Adjacent to this community's…
Rotating between abdomen, thigh and upper arm: absorption differences — one year on Replied, post #31 · Practice › Administration · 11 Mar 2026 · 32 likes If you have to inject at a different time of day than usual, that is a much smaller perturbation than it feels for a weekly compound with a week-long half-life. The…
Reading a preclinical wound-healing model and its relevance to a human tendon — a second… Replied, post #8 · Compounds › Repair & healing peptides · 7 Mar 2026 · 0 likes I have no financial interest in anything named in this thread and I want to say so before I comment on Reading a preclinical wound-healing model, because it is the sort…
Injection discomfort: needle gauge, volume, temperature, technique Replied, post #27 · Practice › Administration · 16 Feb 2026 · 0 likes Everything in post #23 holds. The case it does not cover is the one I have. Pinch or no pinch: the decision depends on needle length and on your own anatomy. A longer…
Run-in periods and the population they select — the long version Replied, post #2 · Evidence › Trials · 18 Jan 2026 · 15 likes Population narrowness: most trials in this class enrolled fairly specific groups. Baseline body mass index ranges, exclusion of renal disease, exclusion of certain…
Half-life, steady state, and accumulation worked through — a second dataset Replied, post #57 · Pharmacology › Pharmacokinetics · 11 Jan 2026 · 0 likes Post #55 is right about the mechanism and I think understates the practical bit. I read the earlier replies on Half-life twice before writing this, because I had…
Promotion criteria, and the one that stops most nominations — the long version Replied, post #121 · Documentation › Doc review · 28 Dec 2025 · 23 likes On Promotion criteria, I would rather understate and be corrected upward than overstate and be quoted. That is a house style here and it is a good one.
Specification in the result column: why that is a meaningful error Replied, post #84 · Analytics › COA interpretation · 6 Dec 2025 · 0 likes "Not less than 98 per cent" is a specification. "98.3 per cent" is a result. A certificate carrying only the first has not told you what was measured. Happy to expand…
Heterogeneity as information rather than as a nuisance Replied, post #14 · Evidence › Meta-analyses · 2 Dec 2025 · 2 likes Post #13 is the version of this I will quote in future. One addition. Answering the heterogeneity question as asked, then the question I think is meant. As asked: yes,…
Documentation that appears only after payment Replied, post #94 · Sourcing › Red flags · 2 Dec 2025 · 0 likes Post #92 put the caveat in the right place and I want to underline it. Patterns that reliably precede a problem: underdosing (less active material than stated,…
Second pass at: The topic list is dense — is that deliberate? Replied, post #6 · marked as the solution · Meta › Site feedback · 22 Nov 2025 · 7 likes Topic list is a question about a distribution, not about a value, and treating it as a value is what produces the confident wrong answers.
Heterogeneity as information rather than as a nuisance Replied, post #2 · Evidence › Meta-analyses · 16 Nov 2025 · 5 likes A note on how heterogeneity gets discussed rather than on heterogeneity itself: the confident posts get the replies and the careful ones get ignored, and the careful…
Revisiting: Aggregates and why a purity assay may miss them entirely Replied, post #17 · Analytics › Impurities & related substances · 16 Nov 2025 · 0 likes Post #14 put the caveat in the right place and I want to underline it. Agreed on Aggregates, with one qualification that I think matters. The reasoning holds for the…
Reading SURMOUNT-1 without the press release — one year on Replied, post #22 · Compounds › Tirzepatide · 15 Nov 2025 · 21 likes The strongest argument against my own position on Reading SURMOUNT-1 without the press, stated as well as I can state it, since nobody else has yet.
Coming back to: Why most self-reports here are not experiments, and that is fine Replied, post #19 · Research Methods › N-of-1 designs · 14 Nov 2025 · 0 likes Adding the measurement that post #16 says would settle it. Sample size in n-of-1: you are the sample. Repeated measurements (weekly weighings, daily mood scores)…
[2026 update] What steady state means for the decision to escalate Replied, post #54 · Practice › Dosing & titration · 10 Nov 2025 · 10 likes The four-week step is a trial convention, not a pharmacological constant. It is roughly four half-lives for a week-long half-life, which is the interval at which you…
NHS criteria and how they are applied in practice — the long version Replied, post #16 · Regional › UK & Ireland · 8 Nov 2025 · 24 likes MHRA is the regulator. Licensed incretin analogues are prescription-only medicines. NHS and private prescribing routes exist with materially different access criteria…
A calculator that gives a right answer to the wrong question — does this still hold? Replied, post #22 · Data & Tools › Calculators · 29 Oct 2025 · 2 likes Confirming post #21 from a second method, which matters more than confirming it from a second person. Two things can be true about calculator at once: the mechanism is…
Follow-up: Why the titration planner refuses to produce a schedule below a floor Replied, post #102 · Data & Tools › Calculators · 2 Sep 2025 · 0 likes On post #100 — agreed on the reasoning, with one qualification. The honest answer on titration planner refuses is that it depends, and the useful part is the list of…
Semaglutide versus liraglutide head to head: reading STEP 8 carefully Replied, post #49 · Compounds › Semaglutide · 28 Aug 2025 · 3 likes Semaglutide's structure is a modified backbone with a C18 diacid attached through a spacer. The acylation is the reason for the long half-life and it is also the reason…
Second pass at: A history of disordered eating: proceeding carefully Replied, post #118 · Wellbeing › Mental health · 25 Aug 2025 · 0 likes Motivation and expectation: starting with clear motivation and realistic expectations about what will happen and when helps with psychological adjustment.
The most useful thing you learned here that was not the answer you came for — a second… Replied, post #2 · Lounge › Off topic · 21 Aug 2025 · 8 likes That reframing is the whole thing. The facts I already had.
Coming back to: What published stability data actually covers, and what it does not Replied, post #114 · Practice › Storage & stability · 16 Aug 2025 · 0 likes Confirming post #112 from a second method, which matters more than confirming it from a second person. If you are new and reading this thread for the answer to…
Follow-up: Why the titration planner refuses to produce a schedule below a floor Replied, post #65 · Data & Tools › Calculators · 28 Jul 2025 · 8 likes Mass error checking: enter your observed mass and theoretical mass and check whether the difference in ppm is within reasonable bounds for your instrument. Useful…
Sodium, potassium and magnesium when intake drops Replied, post #25 · Nutrition & Training › Hydration & electrolytes · 21 Jun 2025 · 1 like Marking my place. If it changes for me I will come back and say so.
The CagriSema phase 2 paper and what a fixed combination buys — the long version Replied, post #100 · Compounds › Cagrilintide & amylin analogues · 15 Jun 2025 · 27 likes CagriSema phase 2 paper: I have looked for the primary source twice and failed twice. Either it does not exist or it is somewhere I do not know to look, and I would…
What SELECT changed about how semaglutide is discussed, and what it did not Replied, post #129 · Compounds › Semaglutide · 22 May 2025 · 4 likes Post #125 put the caveat in the right place and I want to underline it. The 2.4 mg maintenance dose in the weight-management programme and the 1.0 mg diabetes dose are…
Journal club: indirect comparison between two programmes, defended and attacked — one… Replied, post #9 · Evidence › Journal club · 21 May 2025 · 7 likes Source for the indirect comparison figure, since it was asked for. It is in the discussion rather than the abstract, which is why the version circulating is stronger…
Journal club: SURMOUNT-4 and continuation versus withdrawal — a second dataset Replied, post #28 · Evidence › Journal club · 7 May 2025 · 7 likes Where I part company with post #24, and it is a narrow parting. My experience of SURMOUNT-4 and continuation versus withdrawal contradicts the reply above. I am posting…
Reading a supplier's product description as a marketing document Replied, post #19 · Compounds › Other compounds · 4 May 2025 · 21 likes Where I part company with post #15, and it is a narrow parting. Storage guidance for the less common material is usually copied from the incretin guidance and may not…
Counter-ion content and its effect on measured mass Replied, post #26 · Analytics › Mass spectrometry · 27 Apr 2025 · 1 like Oxidation adds sixteen per oxygen and is the most common modification seen in aged material. Its presence in the spectrum is informative about handling as well as…
Second pass at: Journal club: STEP 4 and what a withdrawal design can prove Replied, post #11 · Evidence › Journal club · 19 Apr 2025 · 33 likes On STEP 4, the part that usually goes wrong is that the question is asked as though it has one answer. It has a range, and the width of the range is the interesting…
The C-cell question: rodent findings and their human context Replied, post #5 · Compounds › Semaglutide · 4 Apr 2025 · 0 likes This follows post #4 rather than contradicting it. Two people in this thread mean different things by c-cell question and are disagreeing about the definition while…
Reconstituting a multi-strength kit without mixing yourself up Replied, post #52 · Practice › Reconstitution · 2 Apr 2025 · 7 likes Do not shake. Swirl, or leave it. Vigorous agitation introduces air and shear, and neither helps a peptide go into solution any faster than patience does. It is a small…
Journal club: STEP 4 and what a withdrawal design can prove Replied, post #14 · Evidence › Journal club · 24 Mar 2025 · 1 like Nobody has said the unglamorous part of STEP 4 yet, so: most of the variation is explained by things that are boring to write about and easy to check.
Why mass spectrometry cannot tell you about an epimer Replied, post #83 · Analytics › Mass spectrometry · 9 Mar 2025 · 5 likes Where I part company with post #79, and it is a narrow parting. For a compound with no reference standard in circulation, an observed mass is much more useful than an…
Pharmaceutical compounding rules, summarised from primary sources Replied, post #13 · Sourcing › Regulatory · 27 Feb 2025 · 2 likes Post #12 answers the question as asked. The question underneath it is different. Small correction to my own earlier position on pharmaceutical compounding rules. I had…
Biased agonism: a real phenomenon, an over-used explanation Replied, post #3 · Pharmacology › Receptor biology · 23 Feb 2025 · 7 likes Adding the boring version of biased agonism, because the interesting version keeps getting posted and the boring one is usually right. Check the ordinary explanations,…
Consistent declarations and why they matter more than clever ones Replied, post #51 · Sourcing › Logistics · 18 Feb 2025 · 6 likes Post #48 is the version of this I will quote in future. One addition. Consistent declarations is a good example of a question where the honest answer is boring and the…
Follow-up: Tesamorelin has an approved indication — what that changes about the evidence Replied, post #11 · Compounds › Secretagogues & GH axis · 15 Feb 2025 · 1 like I had written a reply contradicting post #10 and deleted it. Here is what survived. Tesamorelin has an approved indication in HIV-associated lipodystrophy. That is the…
Micronutrient status when intake falls substantially — a second dataset Replied, post #8 · Clinical › Bloodwork · 24 Jan 2025 · 4 likes Building on post #5 rather than restating it. Before the thread moves on from Micronutrient status — what is the sample size behind the claim? I am not being difficult;…
Scheduled maintenance and what will be unavailable Replied, post #16 · Meta › Announcements · 15 Jan 2025 · 0 likes Everything in post #12 holds. The case it does not cover is the one I have. Reading back through the scheduled maintenance threads from last year, the same three…
Follow-up: Individual participant data versus aggregate data Replied, post #44 · Evidence › Meta-analyses · 9 Jan 2025 · 4 likes Reporting rather than recommending, on Individual participant data versus aggregate. What happened is above. Whether it should have is a different question and not one…
Oxidation pathways for methionine and tryptophan Replied, post #63 · Analytics › Impurities & related substances · 31 Dec 2024 · 21 likes This follows post #62 rather than contradicting it. I have three months of notes on oxidation pathways for methionine and the honest summary is that the trend is real…
A promotion I argued against, and why I lost Replied, post #44 · Documentation › Doc review · 29 Dec 2024 · 28 likes The most useful review comment names a sentence and says what is wrong with it. General approval and general concern are both hard to act on. On balance I think that is…
Body image changing more slowly than the body Replied, post #58 · Wellbeing › Mental health · 17 Dec 2024 · 3 likes Everything in post #54 holds. The case it does not cover is the one I have. What I want from this body image thread is the list of things that would need to be true for…
[2026 update] Step therapy requirements and how to satisfy them Replied, post #57 · Access › Insurance & coverage · 6 Dec 2024 · 20 likes Sensible. I would want the same detail before I acted on it either.
When to suspect the method rather than the sample Replied, post #43 · Analytics › Method validation · 28 Nov 2024 · 14 likes Documented validation is what separates a number from an opinion expressed numerically. That is the whole reason to ask for the procedure identifier rather than the…
Coming back to: When to suspect the method rather than the sample Replied, post #3 · Analytics › Method validation · 27 Nov 2024 · 22 likes Noted, and thank you for writing it out rather than summarising it.
Revisiting: Bug report: the reconstitution calculator and a rounding edge case Replied, post #3 · Data & Tools › Calculators · 24 Nov 2024 · 0 likes Mass error checking: enter your observed mass and theoretical mass and check whether the difference in ppm is within reasonable bounds for your instrument. Useful…
Tracking semaglutide's approved indications across jurisdictions, dated — does this… Replied, post #36 · Compounds › Semaglutide · 21 Nov 2024 · 0 likes Picking up post #35: that is the part I would want checked first. On the "does it stop working" question: tolerance in the pharmacological sense is not what the…
EMA product information as a primary source — does this still hold? Replied, post #58 · Regional › European Union · 16 Nov 2024 · 28 likes I would keep EMA product information and the decision it usually gets used for separate in this thread. They are related and they are not the same question, and merging…
Promotion criteria, and the one that stops most nominations Replied, post #93 · Documentation › Doc review · 23 Oct 2024 · 17 likes Two sentences on promotion criteria and then I will stop, because the rest is speculation and the thread is better without mine. What is documented is narrow. What is…
Why a preprint's supplementary material is often the best part Replied, post #23 · Evidence › Preprints · 14 Sep 2024 · 33 likes Coming back to post #21, because the follow-up matters more than the original answer. Where numbers change between preprint and published version, the changes are not…
Splitting a vial for two laboratories: how to do it without ruining both — what changed… Replied, post #56 · Sourcing › Independent verification · 13 Sep 2024 · 1 like Adding a note of thanks rather than an opinion. I did not know most of that.
Identical chromatograms across two different lots Replied, post #20 · Sourcing › Red flags · 30 Aug 2024 · 0 likes The reason identical chromatograms keeps being re-asked is that the answer is conditional and people quote it without the condition. It is not that the answer is unknown.
Chronic kidney disease and the FLOW result Replied, post #25 · Clinical › Comorbidities · 18 Aug 2024 · 10 likes Fair, and the limits you put on it are the part I will remember.
Journal club: SURPASS-2 and the semaglutide 1 mg comparator Replied, post #5 · Evidence › Journal club · 27 Jul 2024 · 1 like SURPASS-2: I have looked for the primary source twice and failed twice. Either it does not exist or it is somewhere I do not know to look, and I would like to know which.
Cold packs, phase-change material, and what survives ten days Replied, post #38 · Sourcing › Logistics · 24 Jun 2024 · 3 likes Document outcomes rather than forecasting them. A forecast in this category reads as reassurance and is not one.
The mass-error checker and its intended scope Replied, post #54 · Data & Tools › Calculators · 16 Jun 2024 · 29 likes A calculator that shows its working is worth ten that give an answer. The whole value is being able to see which step you disagree with.