The DOI matches its Crossref record; 73 of the 74 references it cites were found in a registry or an index; none of the 35 sources its claims cite is checked for support yet.
Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients
Open accessAbstract
Background There are currently few preventive interventions available for posttraumatic stress disorder (PTSD). Intranasal oxytocin administration early after trauma may prevent PTSD, because oxytocin administration was previously found to beneficially impact PTSD vulnerability factors, including neural fear responsiveness, peripheral stress reactivity, and socioemotional functioning. Therefore, we investigated the effects of intranasal oxytocin administration early after trauma on subsequent clinician-rated PTSD symptoms. We then assessed whether baseline characteristics moderated the intervention's effects.Methods We performed a multicenter, randomized, double-blind, placebo-controlled clinical trial. Adult emergency department patients with moderate to severe acute distress (n = 120; 85% accident victims) were randomized to intranasal oxytocin (8 days/40 IU twice daily) or placebo (8 days/10 puffs twice daily), initiated within 12 days posttrauma. The Clinician-Administered PTSD Scale (CAPS) was administered at baseline (within 10 days posttrauma) and at 1.5, 3, and 6 months posttrauma. The intention-to-treat sample included 107 participants (oxytocin: n = 53; placebo: n = 54).Results We did not observe a significant group difference in CAPS total score at 1.5 months posttrauma (primary outcome) or across follow-up (secondary outcome). Secondary analyses showed that participants with high baseline CAPS scores receiving oxytocin had significantly lower CAPS scores across follow-up than participants with high baseline CAPS scores receiving placebo.Conclusions Oxytocin administration early after trauma did not attenuate clinician-rated PTSD symptoms in all trauma-exposed participants with acute distress. However, participants with high acute clinician-rated PTSD symptom severity did show beneficial effects of oxytocin. Although replication is warranted, these findings suggest that oxytocin administration is a promising preventive intervention for PTSD for individuals with high acute PTSD symptoms.
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TL;DR
In a multicenter randomized placebo-controlled trial, repeated intranasal oxytocin initiated early after trauma did not reduce clinician-rated PTSD symptoms overall in emergency department patients with acute distress. However, secondary moderator analyses found that oxytocin-treated participants with high acute PTSD symptom severity (baseline CAPS ≥45) had significantly lower PTSD symptoms across 6-month follow-up than placebo-treated participants.
Key findings
- No significant group difference in the primary outcome, CAPS total score at 1.5 months posttrauma: oxytocin n=43, mean 25.84 (SD 22.97) vs placebo n=48, mean 27.44 (SD 22.03); square-root transformed mean difference 0.23 (SE 0.45), t89=0.509, p=.612, Cohen’s d=0.107.
- Across follow-up, CAPS scores decreased significantly over time (B=-0.35, SE=0.05, t=-7.175, p<.001), but there was no significant overall intervention effect on intercept (B=-0.30, SE=0.37, t=-0.826, p=.409) or linear slope (B=0.04, SE=0.07, t=0.504, p=.614; Cohen’s d=0.133).
- Baseline CAPS total score significantly moderated the intervention effect on follow-up CAPS scores (baseline CAPS × intervention on intercept: B=-0.73, SE=0.30, t=-2.389, p=.017). For participants with baseline CAPS ≥45, oxytocin was associated with lower CAPS scores across follow-up than placebo (F1,106=8.212, p=.006, Cohen’s d=0.864); for baseline CAPS <45, no significant effect was found (F1,106=0.822, p=.367, Cohen’s d=-0.221).
- In exploratory pairwise comparisons among participants with baseline CAPS ≥45, oxytocin-treated participants also had lower IES-R (F1,107=8.181, p=.005, Cohen’s d=0.869), HADS-depression (F1,107=7.180, p=.014, Cohen’s d=0.752), and HADS-anxiety (F1,106=4.982, p=.038, Cohen’s d=0.623) scores across follow-up. Overall self-reported PTSD, anxiety, and depression symptoms did not show significant group differences (Cohen’s d: IES-R 0.195; HADS-anxiety 0.207; HADS-depression 0.113).
Methods
- Multicenter, double-blind, randomized placebo-controlled trial in three Amsterdam emergency departments; adults aged 18–65 with moderate to severe acute distress after trauma were screened, and 120 were randomized. The intention-to-treat sample included 107 participants (oxytocin n=53; placebo n=54); 85% were accident victims.
- Participants received intranasal oxytocin (40 IU/dose, twice daily for 8 days) or placebo (0.9% NaCl, 10 puffs twice daily), initiated within 12 days posttrauma. The Clinician-Administered PTSD Scale (CAPS) was administered at baseline within 10 days posttrauma and at 1.5, 3, and 6 months; primary outcome was CAPS total score at 1.5 months.
- Analyses were intention-to-treat in SPSS v22, with multiple imputation for missing outcome data and linear mixed models for follow-up CAPS, IES-R, and HADS scores. Moderator analyses examined sex, childhood trauma, peritraumatic/immediate distress, and baseline acute symptom severity; a preplanned interim analysis after 50% of planned inclusion found conditional power <.20 and recruitment was halted.
Limitations
- The paper states that inclusion was halted after the interim analysis showed low conditional power, resulting in a modest sample size; replication is important.
- The paper states considerable variability in baseline CAPS scores: only 40.2% scored above the CAPS ≥45 threshold; screeners may have had lower specificity for PTSD than previously reported, and PTSD screening positives declined from 19.8% at 1.5 months to 6.0% at 6 months. It also notes that 23% reported mental health care use during follow-up, which may have stimulated help-seeking and contributed to symptom decrease.
- The paper states that >80% of participants visited the ED because of accidents, so trauma type moderation could not be investigated; it also did not investigate different timing, dosage, or duration of oxytocin administration. Evident from the text: the beneficial findings in high acute PTSD symptom participants come from secondary and exploratory analyses and require replication.
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17 Not checked yet · 17 Own interpretation · 14 Own result · 9 Own method · 1 No basis given
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“IES-R, HADS-anxiety, and HADS-depression scores at follow-up also significantly decreased over time”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Self-reported PTSD and Anxiety and Depression Symptoms. IES-R, HADS-anxiety, and HADS-depression
plainn = 107 ·- Asserted: passes — The authors put it forward as true.
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A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“There was no significant difference in CAPS total score at 1.5 months posttrauma between oxytocin (n 5 43, mean [SD]: 25.84 [22.97]) and placebo (n 5 48, mean [SD]: 27.44 [22.03]; square root transformed mean difference [SE]: 0.23 [0.45], t 89 5 0.509, p 5 .612,95% confidence interval: -0.67 to 1.13, Cohen's d 5 0.107).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Primary Outcome
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In the paper
“CAPS total scores significantly decreased from 1.5 to 6 months posttrauma (B [SE]: -0.35 [0.05], t 5 -7.175, p , .001)”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Secondary and Exploratory Outcomes
plaincorrelational- Asserted: passes — The authors put it forward as true.
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A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“IES-R, HADS-anxiety, and HADS-depression scores at follow-up also significantly decreased over time”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Self-reported PTSD and Anxiety and Depression Symptoms. IES-R, HADS-anxiety, and HADS-depression
plainn = 107 ·- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“IES-R, HADS-anxiety, and HADS-depression scores at follow-up also significantly decreased over time”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Self-reported PTSD and Anxiety and Depression Symptoms. IES-R, HADS-anxiety, and HADS-depression
plainn = 107 ·- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: unclear — It is unclear whether the paper’s conclusions depend on it.
- Based: passes — The paper gives a reason why it holds.
A result the paper reports from its own data — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“We observed no other significant moderators of intervention effects on CAPS total scores (Table 3).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Secondary and Exploratory Outcomes
plain- Asserted: passes — The authors put it forward as true.
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In the paper
“only 40.2% of the participants scored above a previously established severity threshold optimally sensitive for PTSD [CAPS $ 45 (56)].”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
What the sources say
- Not checked yetcites [56] Weathers, 1999, Psychometric properties of nine scoring rules for the clinician administered PTSD scale, Psychol Assess source
plain- Asserted: passes — The authors put it forward as true.
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In the paper
“In addition, exploratory analyses showed that these participants also had lower selfreported PTSD, depression, and anxiety symptom severity across follow-up.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > DISCUSSION
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In the paper
“Our exploratory finding that oxytocin attenuated self-reported anxiety symptoms in individuals with high acute PTSD symptoms suggests that anxiolytic effects may underlie the observed effects on PTSD symptomatology.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
hedgeddirect- Asserted: passes — The authors put it forward as true.
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In the paper
“However, participants with high acute PTSD symptoms receiving oxytocin showed significantly lower PTSD symptom severity across follow-up compared to placebo.”
- Also stated in: § Biological Psychiatry · plain
“Participants with baseline Clinician-Administered PTSD Scale (CAPS) total scores $45 receiving oxytocin had significantly lower CAPS total scores across follow-up than participants with baseline CAPS total scores $45 receiving placebo (F 1,106 5 8.212, p 5 .006Bonferronicorrected)”
- Also stated in: § Biological Psychiatry · boosted
“demonstrate that oxytocin's effects on clinician-rated PTSD were sustained for a significant period of time.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
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- Also stated in: § Biological Psychiatry · plain
- It may state two separate claims as one. 14
- Probably not a substantial claim. 8
- The quote only partly states this claim. 1
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In the paper
“without significant group differences in overall symptom severity or symptom decrease over time (Cohen's d 5 IES-R, 0.195; HADS-anxiety, 0.207; HADS-depression, 0.113; Table 2).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Self-reported PTSD and Anxiety and Depression Symptoms. IES-R, HADS-anxiety, and HADS-depression
plainn = 107- Asserted: passes — The authors put it forward as true.
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In the paper
“in both treatment groups we observed a steady decrease in PTSD symptom severity over time: the percentage of participants screening positive for PTSD declined from 19.8% at 1.5 months posttrauma to 6.0% at 6 months posttrauma.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
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In the paper
“We observed no significant group differences in demographic, trauma and screening, or baseline clinical characteristics.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Baseline and Trial Characteristics
plain- Asserted: passes — The authors put it forward as true.
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In the paper
“In recently traumaexposed individuals, however, intranasal oxytocin within 10 days posttrauma increased amygdala reactivity to fearful faces (27) and decreased amygdala-ventrolateral prefrontal functional connectivity after a trauma reminder (28).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Abstract
What the sources say
- Not checked yetcites [27] Frijling, 2016, Effects of intranasal oxytocin on amygdala reactivity to emotional faces in recently trauma-exposed individuals, Soc Cogn Affect Neurosci source
- Not checked yetcites [28] Frijling, 2016, Intranasal oxytocin affects amygdala functional connectivity after trauma script-driven imagery in distressed recently trauma-exposed individuals, Neuropsychopharmacology source
plaindirect- Asserted: passes — The authors put it forward as true.
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In the paper
“participants receiving oxytocin reported having administered significantly more intranasal doses than those receiving placebo (Mann-Whitney U: 742.00, p 5 .017).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Baseline and Trial Characteristics
plaincorrelational- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
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In the paper
“In addition, there were no significant group differences in subjective intervention allocation awareness, use of mental health care or psychopharmaceuticals (Table 1), or reported adverse events during the trial (Supplemental Table S2).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Baseline and Trial Characteristics
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In the paper
“Analyses in completers only (oxytocin: n 5 39, placebo: n 5 40) showed comparable results (Table 2).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Secondary and Exploratory Outcomes
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In the paper
“Accumulating evidence from studies in animals and in healthy and psychiatric human populations shows that oxytocin administration may modulate glucocorticoid (16) and autonomic stress reactivity (17), dampen anxiety and neural threat processing (18,19), and beneficially impact socioemotional processes and prosocial behavior (20,21) [but see also (22,23) for seemingly nonprosocial effects].”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Abstract
What the sources say
- Not checked yetcites [16] Cardoso, 2014, A meta-analytic review of the impact of intranasal oxytocin administration on cortisol concentrations during laboratory tasks: Moderation by method and mental health, Psychoneuroendocrinology source
- Not checked yetcites [17] Kubzansky, 2012, A heartfelt response: Oxytocin effects on response to social stress in men and women, Biol Psychol source
- Not checked yetcites [18] Kirsch, 2005, Oxytocin modulates neural circuitry for social cognition and fear in humans, J Neurosci source
- Not checked yetcites [19] Wigton, 2015, Neurophysiological effects of acute oxytocin administration: Systematic review and meta-analysis of placebo-controlled imaging studies, J Psychiatry Neurosci source
hedgedconditional- Asserted: passes — The authors put it forward as true.
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In the paper
“Notably, the need for effective and safe PTSD prevention is longstanding and ongoing, with no preventive interventions currently at the stage of widespread implementation (57).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
What the sources say
- Not checked yetcites [57] Howlett, 2016, Prevention of trauma and stressor-related disorders: A review, Neuropsychopharmacology source
plain- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
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In the paper
“As the interim analysis at 50% of planned inclusion indicated low conditional power to detect a significant effect of oxytocin on clinician-rated PTSD symptom severity at study completion, we halted inclusion.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
plain- Asserted: passes — The authors put it forward as true.
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In the paper
“an online cognitive behavioral therapy-based intervention only reduced PTSD symptoms in participants with high acute PTSD symptoms (63).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
What the sources say
- Not checked yetcites [63] Mouthaan, 2013, Internet-based early intervention to prevent posttraumatic stress disorder in injury patients: Randomized controlled trial, J Med Internet Res source
plaindirect- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“In addition, the oxytocin intervention was initiated within approximately 2 weeks posttrauma, and therefore it is also of interest for use in ED patients for whom immediate intervention is not feasible or in traumatized populations that are not immediately brought to the attention of health care professionals.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
hedged- Asserted: passes — The authors put it forward as true.
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A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Therefore, we may have included more participants with relatively low PTSD risk than anticipated, potentially also explaining why we found a differential intervention effect dependent on clinician-rated acute PTSD severity instead of the hypothesized overall intervention effect.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
hedgedconditional- Asserted: passes — The authors put it forward as true.
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A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“This may be because our screening questionnaires were administered earlier after trauma than in previous validation studies.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
hedgedconditional- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“Relative to placebo-treated individuals with high acute PTSD symptoms, oxytocin-treated participants with high acute PTSD symptoms had significantly lower PTSD symptom severity across the complete follow-up period up to 6 months posttrauma, indicating a long-term protective effect.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > DISCUSSION
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In the paper
“Previously, hydrocortisone (4,5) and prolonged exposure (3) initiated within 12 hours posttrauma in ED patients, and brief cognitive behavioral therapy within the first weeks posttrauma in patients with acute stress disorder (6), were found to reduce subsequent PTSD symptom severity.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
What the sources say
- Not checked yetcites [4] Delahanty, 2013, The efficacy of initial hydrocortisone administration at preventing posttraumatic distress in adult trauma patients: A randomized trial, CNS Spectr source
- Not checked yetcites [5] Zohar, 2011, High dose hydrocortisone immediately after trauma may alter the trajectory of PTSD: Interplay between clinical and animal studies, Eur Neuropsychopharmacol source
- Not checked yetcites [3] Rothbaum, 2012, Early intervention may prevent the development of posttraumatic stress disorder: A randomized pilot civilian study with modified prolonged exposure, Biol Psychiatry source
- Not checked yetcites [6] Roberts, 2010, Early psychological interventions to treat acute traumatic stress symptoms, Cochrane Database Syst Rev
plaindirect- Asserted: passes — The authors put it forward as true.
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In the paper
“we did not investigate whether a different timing, dosage, or duration of oxytocin administration would also be effective in reducing subsequent PTSD symptom severity.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
plain- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim. The paper’s conclusions may not depend on it.
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In the paper
“in rodents, central oxytocin administration before conditioned fear extinction improved social fear extinction (68) but impaired nonsocial fear extinction (69).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
What the sources say
- Not checked yetcites [68] Zoicas, 2014, Brain oxytocin in social fear conditioning and its extinction: Involvement of the lateral septum, Neuropsychopharmacology source
- Not checked yetcites [69] Toth, 2012, Central administration of oxytocin receptor ligands affects cued fear extinction in rats and mice in a timepoint-dependent manner, Psychopharmacology (Berl) source
plaindirect- Asserted: passes — The authors put it forward as true.
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It may state two separate claims as one.
In the paper
“Rothbaum et al. (3) observed that rape victims benefitted most from early prolonged exposure compared to ED patients with other types of trauma exposure.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
What the sources say
- Not checked yetcites [3] Rothbaum, 2012, Early intervention may prevent the development of posttraumatic stress disorder: A randomized pilot civilian study with modified prolonged exposure, Biol Psychiatry source
plaindirect- Asserted: passes — The authors put it forward as true.
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Probably not a substantial claim.
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In the paper
“There is ongoing debate on pharmacodynamics of intranasal oxytocin administration (70)(71)(72)(73).”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
What the sources say
- Not checked yetcites [70] Carson, 2016, Improving research standards to restore trust in intranasal oxytocin, Biol Psychiatry source
- Not checked yetcites [71] Leng, 2016, Intranasal oxytocin: Myths and delusions, Biol Psychiatry source
- Not checked yetcites [72] Quintana, 2016, Intranasal oxytocin mechanisms can be better understood, but its effects on social cognition and behavior are not to be sniffed at, Biol Psychiatry source
plain- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it.
A conclusion the paper draws from its own results — it cites no other source for it, so there is none to check. The quote shows it is in the paper.
In the paper
“This may indicate that participating in this trial stimulated participants to seek professional help relatively early, which could be an alternative explanation for the observed steady decrease in symptom severity.”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
hedgedconditional- Asserted: passes — The authors put it forward as true.
- Checkable: passes — It can be checked against evidence.
- Load-bearing: fails — The paper’s conclusions may not depend on it.
- Based: passes — The paper gives a reason why it holds.
Probably not a substantial claim. The paper’s conclusions may not depend on it. It may state two separate claims as one.
The paper relies on this without support.
It had not yet been investigated whether oxytocin administration early after trauma may prevent PTSD development.
“It has not yet been investigated whether oxytocin administration early after trauma may prevent PTSD development.”
The paper relies on this without support.
Actual clinical effects of oxytocin administration in recently trauma-exposed individuals were not investigated.
“However, actual clinical effects were not investigated.”
The paper relies on this without support.
This study is the largest published clinical randomized controlled trial on effects of intranasal oxytocin on psychiatric symptoms to date.
“This study is the largest published clinical randomized controlled trial on effects of intranasal oxytocin on psychiatric symptoms to date.”
The paper relies on this without support.
This is the first randomized controlled trial assessing whether sex, trauma history, and baseline symptom severity moderate the effects of repeated oxytocin administration.
“to the best of our knowledge, this is the first randomized controlled trial assessing whether sex, trauma history, and baseline symptom severity moderate the effects of repeated oxytocin administration.”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“twice daily doses of 40 IU oxytocin for 8 days did not significantly attenuate the onset on PTSD compared to placebo among emergency department patients.”
From Augmenting Prolonged Exposure therapy for PTSD with intranasal oxytocin: a randomized, placebo-controlled pilot trial (2018) · cites this paper as van Zuiden et al., 2016
In the citing paper
“However, oxytocin was more effective among individuals who had more severe baseline PTSD severity in this sample.”
From Augmenting Prolonged Exposure therapy for PTSD with intranasal oxytocin: a randomized, placebo-controlled pilot trial (2018) · cites this paper as van Zuiden et al., 2016
In the citing paper
“Safety and feasibility of daily dosing has been demonstrated in other human OT studies including those with alcohol-dependent patients (Pedersen et al., 2013), patients with schizophrenia (Pedersen et al., 2011) and individuals with trauma exposure (van Zuiden et al., 2016).”
From Augmenting Prolonged Exposure therapy for PTSD with intranasal oxytocin: a randomized, placebo-controlled pilot trial (2018) · cites this paper as van Zuiden et al., 2016
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Rated minor: it would not touch a result — a value no result rests on, a p-value that stays on the same side of the significance level, or a conflict that is clerical, resolved elsewhere in the paper, or outside its own findings.
In the paper
“Sex | 0.36 | 0.52 | .692 | -0.65 to 1.37 | -0.07 | 0.10 | .462 | -0.27 to 1.21”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
Reported -0.07 · recomputed 0.47
Rated minor: it would not touch a result — a value no result rests on, a p-value that stays on the same side of the significance level, or a conflict that is clerical, resolved elsewhere in the paper, or outside its own findings.
In the paper
“| Dropout (no follow-up at all) | 8 (15.1%) | 6 (11.3%) | .541 b |”
§ Intranasal Oxytocin to Prevent Posttraumatic Stress Disorder Symptoms: A Randomized Controlled Trial in Emergency Department Patients > Biological Psychiatry
Reported 11.3 · recomputed 11.111111
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Metadata
- Authors
- van Zuiden, M., Frijling, J. L., Nawijn, L., Koch, S. B. J., Goslings, J. C., Luitse, J. S., Biesheuvel, T. H., Honig, A., Veltman, D. J., & Olff, M.
- Affiliations
- Amsterdam UMC Location University of Amsterdam (NL)
- Amsterdam UMC Location Vrije Universiteit Amsterdam (NL)
- OLVG (NL)
- Arq Psychotrauma Expert Group (NL)
- ORCID
- Venue
- Biological Psychiatry
- Publisher
- Elsevier BV
- Published
- 2017-06
- Volume
- 81
- Issue
- 12
- Pages
- 1030-1040
- ISSN
- 0006-3223 (ISSN-L)
- OpenAlex
- W2560374635
- Semantic Scholar
- bd1046552426fd73c914244a4959edc03a4d85fe
- Cited by
- 134
- References
- 74
- Citations by year
- 2026: 8 · 2025: 6 · 2024: 7 · 2023: 9 · 2022: 18 · 2021: 19 · 2020: 13 · 2019: 20 · 2018: 26 · 2017: 8
- FWCI
- 23.90
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Biological Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion)
- Pure Amsterdam UMC (submittedVersion)
- Funders
- ZonMw (91210041)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroendocrine regulation and behavior
- Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
- Keywords
- intranasal oxytocin, emergency department patients, placebo-controlled intervention, accident victims, intervention moderators
- MeSH terms
- Administration, Intranasal, Adolescent, Adult, Aged, Double-Blind Method, Emergency Service, Hospital, Female, Humans, Male, Middle Aged, Oxytocin, Stress Disorders, Post-Traumatic, Treatment Outcome, Young Adult
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