Shrinks In Sneakers

Tag: antipsychotic

  • Suicide is a tragically common outcome in schizophrenia

    🔹 Up to 50% of patients attempt suicide
    🔹 Around 10% die by suicide

    The InterSePT trial directly addressed this crisis by comparing clozapine vs olanzapine in high-risk patients—all with recent suicidal ideation or attempts. Notably, only 27% were treatment-resistant.

    ✅ Clozapine led to a 25% reduction in suicidal behaviors—a game-changer.
    📌 This led to FDA approval for clozapine in reducing suicidality in schizophrenia.

    Let’s stop thinking of clozapine only as a last resort. Sometimes, it’s exactly what’s needed—not later, but now.

  • ARISE Study Phase 3 Results: Understanding Xanomeline’s Setback

    ARISE Study Phase 3 Results: Understanding Xanomeline’s Setback

    What Was the ARISE Study?

    The ARISE trial was a Phase 3 clinical study evaluating Cobenfy — a combination of xanomeline (a muscarinic receptor agonist) and trospium chloride (a peripheral anticholinergic) — as an adjunctive treatment for adults with schizophrenia who continued to experience symptoms despite taking an atypical antipsychotic.

    What Is a Primary Endpoint, and Why Does It Matter?

    In clinical trials, the primary endpoint is the most important outcome researchers are trying to affect — it’s how a drug’s success or failure is officially judged.
    In ARISE, the primary endpoint measured the change in symptom severity compared to placebo using a standardized scale for schizophrenia. Meeting this endpoint would have demonstrated clear, statistically significant symptom improvement attributable to Cobenfy.

    The Outcome: No Statistically Significant Benefit

    According to topline results, Cobenfy did not show a statistically significant improvement compared to placebo when added to atypical antipsychotics. This means the observed difference could have been due to chance and did not meet the pre-set threshold for success.

    However, Cobenfy did show a numerical improvement — the group receiving the drug combination performed betterthan placebo in symptom reduction, just not to a statistically convincing degree.

    Could Anticholinergic Effects Be to Blame?

    One possible explanation for this outcome lies in the mechanism of action of both Cobenfy and many commonly used atypical antipsychotics.

    • Xanomeline is designed to activate muscarinic receptors in the brain (specifically M1 and M4), which may help regulate dopamine and reduce psychosis.
    • But many atypical antipsychotics — like olanzapine, clozapine, and quetiapine — also have anticholinergic properties, meaning they block these same receptors.

    This sets up a pharmacological tug-of-war: Cobenfy tries to stimulate muscarinic activity, while the background antipsychotic may be dampening it. This conflict could blunt the therapeutic signal, explaining why the benefit didn’t reach statistical significance.

    What This Means for the Future

    The failure to meet the primary endpoint is a setback, but not the end of the road. The numerical improvements suggest a potential signal, and with refined trial design — perhaps using background medications with lower anticholinergic load — future studies may better reveal Cobenfy’s potential.

    Additionally, this trial underscores the importance of considering mechanism compatibility in combination therapies. It’s not just about adding drugs — it’s about how they interact at the receptor level.

    Conclusion

    While the ARISE study didn’t deliver the result many hoped for, it raised critical questions that will shape future research. A deeper understanding of anticholinergic burden, drug synergy, and precision pharmacology is essential as we continue the search for more effective treatments for schizophrenia.

  • 🚨 Big News for Clozapine Prescribers & Patients!

    🚨 Big News for Clozapine Prescribers & Patients!

    The FDA has officially ended the Clozapine REMS program—meaning no more mandatory registration, reporting, or ANC submissions to the REMS system! 🙌

    What does this mean?
    ✅ Prescribers – No more REMS hurdles, but ANC monitoring is still recommended.
    ✅ Pharmacies – No REMS verification needed before dispensing.
    ✅ Patients – No more REMS-related delays in getting your medication!

    This long-awaited change follows input from an FDA advisory committee and aims to reduce unnecessary barrierswhile keeping clozapine use safe and effective.

    💬 What are your thoughts on this update? Drop a comment below! 👇

  • The Most Commonly Prescribed Medication for Bipolar Disorder… But Is It the Best?

    The Most Commonly Prescribed Medication for Bipolar Disorder… But Is It the Best?

    When it comes to bipolar disorder, the most commonly prescribed medication isn’t necessarily the most effective.Many clinicians default to prescribing quetiapine, valproate, or lamotrigine, yet lithium remains the gold standardfor long-term treatment.

    So, why is lithium often overlooked? Despite decades of evidence supporting its unmatched efficacy in preventing relapse, reducing suicide risk, and stabilizing mood long-term, lithium is underprescribed due to concerns over side effects, monitoring requirements, and physician discomfort with its use.

    🔹 What Do the RCTs Say About Lithium?

    ✅ BALANCE Trial (2010) – The landmark study comparing lithium vs. valproate vs. combination therapy found that lithium monotherapy was superior to valproate in preventing relapse into both manic and depressive episodes (Geddes et al., 2010).

    ✅ NIMH STEP-BD Trial (2005) – Among mood stabilizers, lithium significantly reduced suicide risk, a benefit not shared by other common treatments (Goodwin et al., 2003).

    ✅ Cade’s Legacy and Beyond – Multiple meta-analyses confirm that lithium reduces relapse rates and is the only mood stabilizer with strong anti-suicidal effects (Cipriani et al., 2005).

    🚨 The Bottom Line? Lithium is STILL the most effective long-term treatment for bipolar disorder, yet it is often underutilized. Instead, newer and more expensive alternatives are frequently prescribed—even when they lack lithium’s robust evidence base.

    Yes, lithium requires monitoring. Yes, it comes with side effects. But for patients with bipolar disorder, choosing the right medication can mean the difference between stability and relapse, life and death.

    Let’s start prescribing based on data, not convenience. 🔥

  • Metformin for Antipsychotic-Induced Weight Gain: What Took So Long?

    Metformin for Antipsychotic-Induced Weight Gain: What Took So Long?

    Antipsychotic-induced weight gain remains a significant challenge in psychiatric practice, contributing to metabolic syndrome, decreased quality of life, and reduced medication adherence. This issue is especially concerning given the chronic nature of psychiatric illnesses requiring antipsychotic treatment. Among strategies to address this, metformin—an insulin sensitizer primarily used for type 2 diabetes—has garnered considerable interest. Below, we summarize the evidence from randomized controlled trials (RCTs) evaluating metformin’s efficacy and safety in mitigating weight gain associated with antipsychotic medications.

    Evidence from Randomized Controlled Trials

    1. Meta-Analyses and Systematic Reviews
      • Multiple meta-analyses of RCTs have shown that metformin effectively reduces weight gain in individuals receiving antipsychotics. Weight reductions of 2-3 kg over 12-16 weeks have been reported compared to placebo.
      • Beyond weight loss, improvements in metabolic parameters such as fasting glucose, insulin resistance, and lipid profiles have been observed.
    2. Population-Specific Findings
      • First-Episode Psychosis (FEP): Studies indicate that metformin is particularly effective in individuals with FEP who experience rapid weight gain shortly after initiating antipsychotic therapy. Early intervention appears to yield more substantial benefits.
      • Chronic Schizophrenia: RCTs in populations with chronic schizophrenia have demonstrated similar weight-reducing effects, though results may be less pronounced compared to FEP patients.
    3. Adjunctive Lifestyle Interventions
      • Combining metformin with lifestyle interventions, such as diet and exercise counseling, results in synergistic benefits. RCTs demonstrate that this combination is more effective than metformin or lifestyle changes alone.

    Safety and Tolerability

    Metformin is generally well-tolerated. The most common side effects are gastrointestinal (e.g., nausea, diarrhea), which tend to subside with continued use. Rarely, lactic acidosis—a serious adverse event—can occur, particularly in individuals with renal impairment. It is crucial to monitor kidney function periodically.

    Practical Considerations

    1. Dosing: Initiate metformin at a low dose (e.g., 500 mg once daily) to minimize gastrointestinal side effects, and titrate gradually to a typical maintenance dose of 1,000-2,000 mg per day.
    2. Monitoring: Regularly assess weight, BMI, fasting glucose, and lipid profiles. Monitor renal function before and during treatment.
    3. Patient Selection: Metformin may be particularly beneficial for patients who:
      • Have significant weight gain or metabolic disturbances from antipsychotic use.
      • Are early in their antipsychotic treatment course.
      • Have no contraindications, such as severe renal impairment.

    Conclusion

    Metformin offers a promising strategy for mitigating antipsychotic-induced weight gain, supported by robust evidence from RCTs. While not a standalone solution, it can play a critical role in a comprehensive approach to managing the metabolic side effects of antipsychotics. Clinicians should consider metformin’s inclusion in treatment plans for patients struggling with weight gain or metabolic dysfunction related to antipsychotic treatment.

  • Clozapine: Unlocking Relief for Negative Symptoms in Schizophrenia

    Clozapine: Unlocking Relief for Negative Symptoms in Schizophrenia

    Clozapine has been studied extensively in schizophrenia, particularly for treatment-resistant cases. Its role in managing negative symptoms (e.g., apathy, alogia, anhedonia, social withdrawal) has been investigated in various randomized controlled trials (RCTs).

    RCT Evidence for Clozapine in Negative Symptoms

    1. Clozapine vs. Typical Antipsychotics
      • Several studies have shown clozapine’s superiority over first-generation antipsychotics (FGAs) like haloperidol in reducing negative symptoms.
      • Example: A landmark RCT (Kane et al., 1988) demonstrated that clozapine not only reduced positive symptoms but also had beneficial effects on negative symptoms, potentially due to its unique pharmacology (e.g., serotonin-dopamine antagonism, NMDA receptor modulation).
    2. Clozapine vs. Other Atypical Antipsychotics
      • Mixed Results: Some RCTs suggest that clozapine is more effective than other atypical antipsychotics (e.g., risperidone or olanzapine) in improving negative symptoms, while others show no significant difference.
      • A meta-analysis of head-to-head RCTs found that while clozapine had modest effects on negative symptoms, differences between it and other atypicals were small.
    3. Clozapine in Primary Negative Symptoms
      • Challenges: True primary negative symptoms (not secondary to positive symptoms, sedation, or depression) are challenging to isolate in trials.
      • Some RCTs highlight that clozapine’s effects on negative symptoms might be indirect, mediated by improvements in positive symptoms, cognitive function, or overall social functioning.
    4. Adjunctive Therapies
      • RCTs combining clozapine with adjuncts like antidepressants (e.g., fluvoxamine) or cognitive enhancers (e.g., aripiprazole, NMDA modulators) have been conducted. While adjunctive strategies show promise, the evidence remains preliminary and inconsistent.

    Potential Mechanism

    Clozapine’s effects on negative symptoms may be attributed to:

    • Serotonin-Dopamine Antagonism: Improved dopamine transmission in the mesocortical pathway.
    • Glutamatergic Modulation: Effects on NMDA and AMPA receptors.
    • Anti-inflammatory Properties: Reduced neuroinflammation may play a role in symptom improvement.
    • Sedation Reduction: Lower propensity for extrapyramidal side effects compared to FGAs.

    Limitations of Evidence

    • Heterogeneity: Most RCTs mix patients with primary and secondary negative symptoms, confounding results.
    • Measurement Challenges: The assessment of negative symptoms in trials is often subjective and prone to bias.
    • Indirect Effects: Improvements may stem from reductions in positive symptoms or cognitive enhancements rather than direct action on negative symptoms.

    Key Takeaway

    Clozapine shows some benefit for negative symptoms, particularly when compared to FGAs and in cases with secondary negative symptoms. However, its effects on primary negative symptoms are modest, and it is generally not considered the first-line choice for this domain of schizophrenia. Adjunctive approaches or newer agents might offer additional promise.

  • Can Amantadine Tame Tardive Dyskinesia? Exploring the Evidence and Potential Benefits

    Can Amantadine Tame Tardive Dyskinesia? Exploring the Evidence and Potential Benefits

    In my practice, I see many patients who have been on high doses of antipsychotics for extended periods, particularly first-generation antipsychotics, which carry a higher risk of developing tardive dyskinesia (TD). While two FDA-approved treatments for TD exist, their high cost and limited availability can make access challenging in community mental health settings. This has led me to explore alternative treatments like amantadine. Like many of you, I wanted to understand the evidence supporting its use, so let’s take a closer look at what the research says about amantadine as a treatment option for TD.

    The evidence for the use of amantadine in treating tardive dyskinesia (TD) has been explored in several small randomized controlled trials (RCTs), though it remains limited compared to other treatments.

    1. Efficacy of Amantadine: Some studies suggest that amantadine, an NMDA receptor antagonist, may offer mild to moderate improvement in TD symptoms by modulating dopaminergic pathways. For instance, an early RCT (2007) tested amantadine in schizophrenia patients with TD and reported some improvements in abnormal involuntary movements compared to placebo. However, the sample size was small, and results were modest.
    2. Comparative Effectiveness: Few trials directly compare amantadine to other TD treatments like VMAT-2 inhibitors (e.g., valbenazine, deutetrabenazine), which are the preferred treatment options due to stronger RCT evidence. Amantadine’s effects may be less pronounced, though some patients have reported partial symptom relief, especially when TD is not severe.
    3. Safety Profile: In RCTs, amantadine is generally well-tolerated in TD patients, with few serious side effects. However, common side effects include dizziness, insomnia, and gastrointestinal issues, which may limit its use in certain patients, particularly those with cognitive or movement comorbidities.

    Overall, while RCTs support some benefit of amantadine in TD, the effect size is generally moderate. VMAT-2 inhibitors are preferred based on stronger, more consistent RCT data, although amantadine may still be considered for patients who cannot tolerate or do not respond to these primary therapies.

  • Split or Stick? The Real Impact of Dividing Clozapine Doses

    Split or Stick? The Real Impact of Dividing Clozapine Doses

    This post comes from a recent discussion I had with my resident about the utility of splitting clozapine doses in a recent case we had.

    The evidence on splitting clozapine into multiple daily doses primarily stems from clinical observations and smaller studies rather than extensive, randomized controlled trials (RCTs). Since clozapine has a unique pharmacodynamic and pharmacokinetic profile, standardizing an RCT on dose splitting has been challenging.

    1. Clozapine’s Half-Life and Steady-State Concentration: Clozapine has a long half-life (averaging about 12 hours), meaning steady-state concentrations can be reached without strict multiple dosing. Many patients maintain stable blood levels with once-daily dosing, especially at lower doses.
    2. Dose Splitting and Side Effects: Some smaller studies and clinical observations suggest that splitting doses can help reduce peak plasma levels of clozapine, which can be associated with side effects like sedation, hypotension, and dizziness. In these cases, a split dosing regimen may improve tolerability, particularly in patients who experience significant sedation or orthostatic hypotension with a single daily dose.
    3. Metabolic Side Effects and Compliance: In cases where metabolic side effects are of concern, or in patients who may not tolerate high single doses well, dividing doses could help with tolerability, potentially improving compliance and minimizing adverse effects like sedation or metabolic impact.
    4. Seizure Risk: High plasma peaks with a single large dose may theoretically increase the risk of seizures, especially in patients on higher doses of clozapine. Dividing doses is sometimes recommended as a preventive measure to maintain a more consistent blood level, although robust RCT data supporting this specific benefit is lacking.

    While RCT evidence specifically on clozapine dose-splitting remains limited, clinical judgment, patient tolerance, and monitoring of therapeutic blood levels play essential roles in tailoring dose regimens.

  • Rethinking Antipsychotics: Is It Time to Hit Pause for Schizophrenia Patients

    Rethinking Antipsychotics: Is It Time to Hit Pause for Schizophrenia Patients

    The article “Deprescribing Antipsychotics in Patients with Schizophrenia: Findings from a Specialized Clinic” emphasizes a growing interest in reducing or discontinuing antipsychotic medications in patients with schizophrenia, particularly those stable on long-term treatment. While continuous antipsychotic use is common to prevent relapse, concerns about long-term side effects, such as metabolic give us pause and rise concerns. 

    Key Points:

    1. Benefits of Deprescribing:
      • Reduction in side effects such as weight gain and metabolic syndrome.
      • Potential reversal of tardive dyskinesia.
      • Empowering patients by involving them in shared decision-making, improving adherence and satisfaction.
    2. Risks:
      • The primary risk is relapse, with studies indicating relapse rates between 20-60% after discontinuation.
      • Relapse can lead to hospitalization, job loss, and disrupted relationships.
    3. Strategies for Safe Deprescribing:
      • Individualized Tapering: Gradual reduction in dose is essential, tailored to the patient’s specific needs and history.
      • Relapse Prevention: Engaging support systems (family, mental health teams), monitoring for early signs of relapse, and incorporating psychosocial interventions.
      • Ethical Considerations: Balancing patient autonomy with the duty to minimize harm is a challenge. Encouraging patient participation respects autonomy while ensuring they are aware of risks.

    Future Directions:

    • More research is needed on long-term outcomes of deprescribing, particularly in identifying which patients are the best candidates for safe withdrawal.
    • Clinical guidelines should better integrate recovery-oriented approaches with deprescribing efforts to strike a balance between risk mitigation and promoting patient empowerment​

    link to the article: https://www.cambridge.org/core/journals/psychological-medicine/article/deprescribing-antipsychotics-in-patients-with-schizophrenia-findings-from-a-specialized-clinic/DA2F622FFA9D26A1F119F4F9BC11F2E3

  • Is Clozapine Disease Modifying?

    Is Clozapine Disease Modifying?

    This post comes from my real world experience with treating many patients with treatment resistant schizophrenia. I wanted to create a consolidated post that goes over what we know about the benefits of clozapine in schizophrenia treatment as well as what we do not know. Clozapine is unique among antipsychotics due to its superior efficacy in treatment-resistant schizophrenia (TRS), but whether it is disease-modifying remains debated.

    1. Superior Long-term Outcomes in TRS

    • Reduced Relapse Rates: Clozapine has been shown to reduce relapse rates more effectively than other antipsychotics. For instance, a large cohort study found lower rates of rehospitalization for patients on clozapine compared to those on other second-generation antipsychotics (SGAs). The lower relapse rates may suggest stabilization of disease progression.
    • Cognitive Benefits: Several studies report improvements or stabilization in cognitive function in patients on clozapine, which contrasts with the cognitive decline often observed in schizophrenia. The preservation or improvement in cognitive function could indicate a modification of disease trajectory.

    2. Impact on Mortality and Suicidality

    • Reduced Mortality: Long-term use of clozapine has been associated with lower mortality rates in schizophrenia, both due to reduced suicide risk and fewer overall medical complications compared to other antipsychotics.
    • Suicide Prevention: Clozapine is the only antipsychotic shown to significantly reduce suicidality in schizophrenia patients, which may point to broader effects on disease severity and progression.

    3. Neurobiological Effects

    • Neuroprotection: Preclinical and human imaging studies suggest clozapine might have neuroprotective properties. Some animal models and neuroimaging studies indicate that clozapine can increase neurogenesis, reduce oxidative stress, and potentially protect against the neurodegeneration associated with chronic schizophrenia.
    • Synaptic Remodeling: There is some evidence that clozapine might positively influence synaptic plasticity. Studies suggest it might normalize the synaptic dysfunction seen in schizophrenia, which could theoretically have a disease-modifying effect by restoring some aspects of brain connectivity and function.

    4. Delay in Onset of TRS

    • Intervention Timing: There is emerging evidence suggesting that earlier introduction of clozapine (when TRS is identified) might lead to better long-term functional outcomes. This hints that clozapine could modify the disease course if used earlier in resistant cases, though direct evidence of disease modification remains scarce.

    5. Chronicity and Brain Volume Loss

    • Potential for Reduced Brain Volume Loss: Some studies indicate that clozapine may be associated with less gray matter loss over time compared to other antipsychotics. This could imply a reduction in the neuroprogressive aspects of schizophrenia.

    Limitations in Evidence

    While clozapine shows many positive outcomes, definitive evidence proving it is “disease-modifying” remains elusive:

    • Lack of RCTs Focused on Disease Modification: Most clinical trials focus on symptomatic improvement rather than long-term neurobiological changes or functional outcomes.
    • Challenges in Measuring Disease Progression: Schizophrenia is a complex, heterogeneous disorder with no clear biomarkers for progression, making it difficult to measure whether clozapine alters the underlying disease process.

    In summary, while there is compelling evidence that clozapine leads to better long-term outcomes and may have neuroprotective effects, proving it as a true disease-modifying treatment in schizophrenia requires more robust, long-term studies focused specifically on changes in the disease course.