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Compounds · Other compounds

Second pass at: How to research a compound with no human data without deceiving yourself

SV
s.vukovicTL2 Moderator22 Nov 2024#1

Second pass at: How to research a compound with no human data without deceiving yourself Writing it up because I had to work it out twice and would rather nobody else did.

Comparing STEP 1 (N Engl J Med, 2021) with SUSTAIN 6 (N Engl J Med, 2016) and finding the comparison harder than it looks.

Different populations, different durations, different endpoints defined slightly differently, and in one case a different estimand. People compare the headline percentages anyway, including me until recently.

Is there a defensible way to put these side by side, or is the honest answer that there is not and we should stop?

20 likes 20mo
KB
k.batistaTL2 Moderator30 Nov 2024#2

the opening post answers the question as asked. The question underneath it is different.

When "no data" is the complete and final answer: if there is no published human data on a compound, that is the state of knowledge. Hope is not a substitute and reasoning from theory is not a substitute. That is not a reason for shame; it is the honest epistemic position.

3 likes 20mo
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IRenaudinTL2Member6 Dec 2024#3

Two things before anyone answers the substance.

First, the context in the first post is clear and specific. Second, the question is framed so that an answer can actually address it. Both are the norm here and both matter more than they sound.

0 likes 20mo
SC
s.chowdhuryTL3Regular11 Dec 2024#4

Distinguishing marketed research compounds from true chemical synthesis: some online suppliers sell compounds that are genuinely novel and difficult to obtain elsewhere. Others repackage standard compounds. Verifying what you are buying requires careful documentation review.

23 likes 20mo
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g.pemberton_ukTL3Regional · UK16 Dec 2024#5
IRenaudin, post #3: Two things before anyone answers the substance. First, the context in the first post is clear and specific. Second, the question is framed so that an answer can actually address it. Both are the norm here and both matter more than they sound. Go to post

Worth separating two things that the opening post runs together.

Melanocortin agonists: mechanism involves the melanocortin-4 receptor pathway that regulates appetite. The documented adverse profile includes blood pressure elevation and erections of sustained duration, the second of which is specific enough that it is the first thing worth mentioning.

16 likes in reply to #3 19mo
HF
h.friskTL220 Dec 2024#6
CR
crossover_reviewTL3Regular24 Dec 2024#7

Why catalogue breadth is not evidence of anything: a supplier listing 500 compounds does not make the 450 untested ones likely to work. It makes them untested compounds with supplier pages.

0 likes 19mo
NB
n.boatengTL2 Moderator28 Dec 2024#8

For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use.

31 likes 19mo
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IMainwaringTL3Regular1 Jan 2025 · edited#9

Two things before anyone answers the substance.

First, the context in the first post is clear and specific. Second, the question is framed so that an answer can actually address it. Both are the norm here and both matter more than they sound.

0 likes 19mo
LV
l.vermeulenTL2 Moderator5 Jan 2025#10
IRenaudin, post #3: Two things before anyone answers the substance. First, the context in the first post is clear and specific. Second, the question is framed so that an answer can actually address it. Both are the norm here and both matter more than they sound. Go to post

Reading a supplier's product description as a marketing document: that is exactly what it is. The hyperbole, the mechanism written as fact, the theoretical benefits stated as established benefits — all of that is marketing. Treat it as such and separate it from evidence where evidence exists.

24 likes in reply to #3 19mo
JC
j.cabreraTL29 Jan 2025#11
TS
taper_shiftTL3Regular12 Jan 2025#12
s.chowdhury, post #4: Distinguishing marketed research compounds from true chemical synthesis: some online suppliers sell compounds that are genuinely novel and difficult to obtain elsewhere. Others repackage standard compounds. Verifying what you are buying requires careful documentation review. Go to post

Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own records is not any individual result; it is that they are dated and consecutive.

0 likes in reply to #4 18mo
RM
r.molnarTL2 Moderator16 Jan 2025#13

This follows post #10 rather than contradicting it.

Compounds this community declines to help with, and why: there are specifics in the guidelines and they are not arbitrary. They exist because of failure modes that have happened in real people, not because of prudishness.

3 likes 18mo
CI
c.inglethorpeTL3Regular19 Jan 2025#14

Naming conventions for research peptides cause confusion because suppliers do not follow a standard. The same compound gets different names from different suppliers. If you are researching something, confirming the sequence or mass is more reliable than confirming the name.

10 likes 18mo
LL
l.lundgrenTL2 Moderator23 Jan 2025 · edited#15
s.vukovic, post #1: Second pass at: How to research a compound with no human data without deceiving yourself Writing it up because I had to work it out twice and would rather nobody else did. Comparing STEP 1 ( N Engl J Med , 2021) with SUSTAIN 6 ( N Engl J Med , 2016) and finding the comparison harder than it looks. Different populations, different… Go to post

I disagree with the reply above, and I think the disagreement is substantive rather than terminological.

The distinction being drawn does not survive when you look at the published data for this specific question. I would be glad to be shown wrong on this, because the version I am arguing against is more convenient.

30 likes in reply to #1 18mo
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TamburelloTL2Member26 Jan 2025#16

Sequence verification: for an obscure compound, a report of the amino acid sequence or a mass-spectrometry result confirming the mass is the only verification that actually matters. A supplier's certificate stating the name is not verification.

0 likes 18mo
VO
v.okonkwoTL2 Moderator30 Jan 2025#17

Picking up post #14: that is the part I would want checked first.

Research-use-only status is a legal classification, not a safety classification. It means the compound is sold for laboratory use and not for human consumption or treatment. The label does not tell you whether the molecule is safe, efficacious, or what its effects are.

5 likes 18mo
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FFaulknerTL3Regular2 Feb 2025#18

Coming back to post #16, because the follow-up matters more than the original answer.

Compounds this community declines to help with, and why: there are specifics in the guidelines and they are not arbitrary. They exist because of failure modes that have happened in real people, not because of prudishness.

15 likes 18mo
RB
r.bruunTL2 Moderator5 Feb 2025#19

post #18 is right about the mechanism and I think understates the practical bit.

Distinguishing marketed research compounds from true chemical synthesis: some online suppliers sell compounds that are genuinely novel and difficult to obtain elsewhere. Others repackage standard compounds. Verifying what you are buying requires careful documentation review.

0 likes 18mo
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NLoughranTL38 Feb 2025#20
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OstrowskiTL2Member12 Feb 2025 · edited#21

Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather than quietly editing.

The correction was fair and I had been repeating something I had not checked carefully enough.

10 likes 17mo
HN
h.nwosuTL2 Moderator15 Feb 2025#22

post #21 answers the question as asked. The question underneath it is different.

Naming conventions for research peptides cause confusion because suppliers do not follow a standard. The same compound gets different names from different suppliers. If you are researching something, confirming the sequence or mass is more reliable than confirming the name.

3 likes 17mo
MS
m.stephanopoulosTL3Regular18 Feb 2025#23

Coming back to post #21, because the follow-up matters more than the original answer.

Sequence verification: for an obscure compound, a report of the amino acid sequence or a mass-spectrometry result confirming the mass is the only verification that actually matters. A supplier's certificate stating the name is not verification.

0 likes 17mo
JS
j.silvaTL2 Moderator21 Feb 2025#24
s.chowdhury, post #4: Distinguishing marketed research compounds from true chemical synthesis: some online suppliers sell compounds that are genuinely novel and difficult to obtain elsewhere. Others repackage standard compounds. Verifying what you are buying requires careful documentation review. Go to post

Reading a supplier's product description as a marketing document: that is exactly what it is. The hyperbole, the mechanism written as fact, the theoretical benefits stated as established benefits — all of that is marketing. Treat it as such and separate it from evidence where evidence exists.

30 likes in reply to #4 17mo
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FFaulknerTL3Regular24 Feb 2025#25
k.batista, post #2: the opening post answers the question as asked. The question underneath it is different. When "no data" is the complete and final answer: if there is no published human data on a compound, that is the state of knowledge. Hope is not a substitute and reasoning from theory is not a substitute. That is not a reason for shame; it is the… Go to post

Worth separating two things that post #21 runs together.

How to research a compound with no human data: mechanistic plausibility is one input. Preclinical data is another. The honest position is that you are reasoning from theory, not from evidence, and the track record of such reasoning is unimpressive when tested against actual outcomes.

15 likes in reply to #2 17mo
SM
so.mbekiTL2 Moderator27 Feb 2025#26

post #25 is right about the mechanism and I think understates the practical bit.

Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the kind that comes from remembering a figure instead of looking it up.

5 likes 17mo
TS
taper_shiftTL3Regular2 Mar 2025#27

This subcategory exists because some people will research compounds outside the main groups discussed here. The standard of evidence and honesty about its limits applies to everything discussed, not just to approved drugs.

1 like 17mo
WM
w.moreauTL2 Moderator5 Mar 2025#28
n.boateng, post #8: For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use. Go to post

When "no data" is the complete and final answer: if there is no published human data on a compound, that is the state of knowledge. Hope is not a substitute and reasoning from theory is not a substitute. That is not a reason for shame; it is the honest epistemic position.

0 likes in reply to #8 17mo
BF
b.fonsecaTL2 Moderator8 Mar 2025#29
Ostrowski, post #21: Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather than quietly editing. The correction was fair and I had been repeating something I had not checked carefully enough. Go to post

On post #25 — agreed on the reasoning, with one qualification.

Melanocortin agonists: mechanism involves the melanocortin-4 receptor pathway that regulates appetite. The documented adverse profile includes blood pressure elevation and erections of sustained duration, the second of which is specific enough that it is the first thing worth mentioning.

3 likes in reply to #21 17mo
PM
p.marchettiTL2 Moderator11 Mar 2025#30

AOD-9604 is a fragment of human growth hormone and has been discussed as a potential weight-loss agent based on theoretical mechanism. The fragment hypothesis — that the fragment retains a specific property of the intact hormone — is not settled for this compound.

0 likes 17mo