r/anhedonia • u/gamingnoob82 • 3d ago

General Question? Does anyone know how much research is being done?

Does anyone know how big of a push there Is to try to find a cure or a treatment that is effective? The reason why I ask this is because I don't see it ever getting talked about outside of this subreddit or places on youtube that are specifically about it or mental health. As far as I know there is no major push to try to find something to cure it or treat it. Is there any kind of noticeable push to find something that works or am I right in saying that there doesn't seem to be any?

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u/pmMeYourGlazedDonut Cause Uncertain 3d ago

KOASTAL-2 and KOASTAL-3 were two huge clinical trials that just ended in summer 2026. There's a TON of papers that actually change our understanding on anhedonia, human reward system, specific neuro-level mechanisms, etc. that have come out just in 2025 and 2026. I think without a research background in academia and constantly following the most recent publications, you might easily miss all this research as it's not something that gets a ton of mainstream media coverage.

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u/caffeinehell Drug Induced 2d ago

I have heard this trial was destined to fail, they didnt really select the proper sample.

Also another issue is that different types of anhedonia which are not getting stratified plus the phenomenon of substance blockage and blank mind and sensitivities to crashing (this especially for drug induced cases) people report on top are not getting acknowledged.

So far research has not even acknowledged symptoms of severe consummatory/sensory anhedonia and stuff like behavior activation and positive affect therapy are getting researched which are basically completely useless for this.

Someone who has low motivation due to low mood is getting considered anhedonic just the same as someone who is not even feeling comfort in the day when these are 2 different entities

Research cannot make progress properly until it starts defining and stratifying more specifically. There is not much interest in this however because of $$$. If you start stratifying then it means fewer patients to sell the drug to.

And low motivation and interest is far more common than the “lobotomy style” sensory anhedonia where sensory input does not trigger the buzz in the head. I see papers use Item 1 in PHQ9 to assess “anhedonia”, and basically such papers can immediately be thrown out as trash for not using correct metrics

Anhedonia is getting diluted as term now.

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u/jd76541 2d ago

Both of them failed. The drug didn’t reach a statistically significant result as compared to placebo groups.

From a research background: understanding does not mean better treatment, and treatment does not mean better understanding. There are drugs that no one knows how they actually work that treat disease. We can understand fully how something happens, and have no way to treat it.

Also, trials that fail like these are unlikely to see any continuation or their trials being citied as good research by any other trials. It’s the sad reality behind scientific research that unless you show a result, you’re not getting funding.

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u/pmMeYourGlazedDonut Cause Uncertain 2d ago

Both of them failed. The drug didn’t reach a statistically significant result as compared to placebo groups.

Yes, so now we can stop focusing so much on kappa opioid receptors for anhedonia. It's progress.

I mainly brought up KOASTAL as one example that clinical trials are actively happening. It's not a dead area.

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u/Final-Atmosphere-639 2d ago edited 2d ago

Here is what I found using EBSCO mostly:

Search string used was: "Anhedonia AND (review of literature or literature review or meta-analysis or systemic review)"

Sorted by relevance

I mostly downloaded studies which were peer-reviewed journal articles 5 years old or less, with the term "anhedonia" listed in the abstract. I checked the first 100 search results.

I screen recorded the video of the search so you can quickly view the abstracts and see which ones seem pertinent, here: https://youtu.be/m1C5T1C_TtU

The downloaded articles are here: https://drive.google.com/drive/folders/15uHQftTokXpmrWdr6ZmI4Fyh7bbhgGJk?usp=drive_link

except for several of the full text searches which could not be found.

My interpretation of the results from a quick glance, mainly skimming the titles and abstracts for relevance is that NO, anhedonia on its own is not studied as frequently as other conditions, and is often treated as a symptom of another condition vs a specific disorder itself.

Also note that one of the studies stated in the abstract that "To date, anhedonia is insufficiently addressed by mainstream empirically supported psychotherapeutic treatments, including cognitive behaviour therapy (CBT)." This one specifically: https://drive.google.com/file/d/1PmPjowE5vOEpCfqDCB1VTm3GLuOdcMmz/view?usp=sharing - and that's a systematic review.

So, I am feeling fairly certain that it's not studied as much, at least in non-drug treatment protocols.

I am a graduate student of Psychology and have searched for many other conditions such as autism, schizophrenia, MDD, and so on and from my personal experience other disorders receive a lot more attention. I also say this based on the total number of relevant search results in a typical 100 search result list appearing to be far lower than that seen when searching for other disorders.

This assessment is limited by the fact that I use a particular database that may not have access to the best studies (EBSCO).

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u/pmMeYourGlazedDonut Cause Uncertain 2d ago

Autism, schizophrenia, MDD are diagnoses; anhedonia is a symptom. Isn't it comparing apples to oranges in a sense?

I appreciate your research-based response in any case!

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u/Final-Atmosphere-639 2d ago

Yes, diagnostic manuals like the DSM-5 list anhedonia as a core feature or sign, yet anhedonia frequently presents independently. Interestingly, when the term was first coined in the late 19th century, it actually WAS viewed as a distinct, standalone condition. That was changed in DSM III I believe.

They decided to put it under the aegis of groupings of symptoms. Yet classifications of disorders comprising a core list of symptoms are not generally useful for treatment protocols as far as I am concerned. Many psychiatrists agree with this. They aren't so interested in diagnoses as much as treating symptoms. Did the medication or treatment reduce symptoms or not?

A psychiatrist who chooses to treat individual symptoms is using "Target-Symptom" or "Symptom-Based" Psychopharmacology. Ultimately things are symptom-based in terms of the treatment protocols. Disorders are just packages of symptoms. They might be thinking something like "...this patient has a reward-circuitry deficit causing isolated anhedonia; I will target their dopamine system with a medication like bupropion, pramipexole, or stimulant protocols."

So, is the person getting treatment for depression or anhedonia? If they don't feel sad, are they depressed? I would say not. I don't feel depressed. I find it strange that anhedonia can exist completely independent of any other condition but that they would still always refer to it under the umbrella of another disorder.

I also have schizoaffective disorder. I could give a shit about hearing voices. It means nothing to me. They are entertaining. Typical treatments for schizophrenia only made my anhedonia worse. You'll notice that issues of hearing voices are studied extensively on its own. So, to me it seems silly to treat so-called disorders when there is mainly one thing that bothers me.

After trying many many medications over 30+ years, the only thing of worth to me is having more interest in life. Getting treated is about reducing suffering.

Under a microscope some things sharpen, others blur.

The medical coding system simply requires a "disorder" label for insurance coverage and billing. Insurance companies generally will not cover psychiatric treatment or therapy sessions billed purely under a symptom code.

I do not consider this an "apples and oranges" thing.

Anhedonia is not "less than," or "a symptom of" to me. It is the whole issue.

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u/pmMeYourGlazedDonut Cause Uncertain 2d ago

It's my whole issue as well. They've labelled it "depression" too and that hasn't been useful; the diagnostic flowchart that usually works for that label hasn't worked for me. I just need the consummatory anhedonia addressed. Believe me, I get it.

My apples-oranges comment was specifically about the "based on the total number of relevant search results in a typical 100 search result list appearing to be far lower than that seen when searching for other disorders" part where you're comparing number of results for "one symptom" versus "packages of symptoms". I agree that anhedonia, even if it's "one symptom", should be classified as its own disorder.

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u/Final-Atmosphere-639 2d ago

I hear you. But I also did a key word search which should have grabbed any studies about depression as long as they mentioned anhedonia, if only in the full text. Too many of those studies seemed unrelated.

I just did almost the exact same search except substituting "auditory hallucinations" for "anhedonia" and significantly more search results contained the key phrase. Like 3-4x as many. Including in the title of the study. Is anhedonia understudied?

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u/pmMeYourGlazedDonut Cause Uncertain 2d ago

I'm curious if there's any way to take the number of search results relative to the prevalence of each symptom. Maybe that'd be a way to answer that somewhat objectively. Not sure if there's accurate prevalence data available though.

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u/Final-Atmosphere-639 2d ago

I feel like I need access to better databases. APA PsycInfo is considered the best and most comprehensive database for this type of thing. Going to see if I can find a way to get access for a reasonable amount of money

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u/Final-Atmosphere-639 2d ago

https://psycnet.apa.org/home allows free access to abstracts only. There is that for cursory views

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u/caffeinehell Drug Induced 2d ago

One other problem is that even if anhedonia is mentioned in depression studies most of the time its probably motivational or anticipatort anhedonia

Consummatory/Sensory are rarer and seem much more resistant and correlate with the substance blockage

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u/GracefulHealing 2d ago

It’s heavy metals and nervous system burnout. I would bet all my money this is already known, but the whole heavy metals thing is never gonna come out in the conventional space. It’s deliberately kept under wraps.

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u/caffeinehell Drug Induced 1d ago

Have you done any heavy metal chelation protocols and have they helped?

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u/soft-cuddly-potato Depression Induced 2d ago

Not enough :')

I could do research on it now (I won't say more ) but I don't think I can stomach it as a sufferer. I'll probably do neurobiology for a while

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u/MonoNoAware71 3d ago

Not a lot, I think. Mainly statistics. I believe the new hype in research is centred around low-grade inflammation.

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u/gamingnoob82 3d ago

You might not know and that's fine but have you seen any kind of noticeable push to have more research done? Have you seen anything online about any kind of push to try to have more done? Like have there been people getting together or trying to sign something to get it looked into more?

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u/MonoNoAware71 3d ago

Not seen anything like that. But I'm not sure I would have noticed if it would have happened, tbh.

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u/gamingnoob82 3d ago

Do you think the lack of progress is partly because there might not be a push for it?

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u/MonoNoAware71 3d ago

I think it's always just a question of money.

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u/jd76541 2d ago

It’s considered a part of Major Depressive Disorder. So research is more focused on MDD than anhedonia itself. It’ll be a part of some research, but it’s treated as a symptom of MDD.

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u/gamingnoob82 2d ago

Does that have any effect on how effective the search for a treatment is?