CHAMGAP
APPROVEDReviewed and approved by the Chamgap Editorial Team (2026-08-01). The draft was written by AI, the existence of all 3 cited sources was verified at the original page, and the verdict passed blind grading and adversarial audit. Methodology v0.6.
Verdict No. 1912 · Search date 2026-08-01 · Methodology v0.6

rTMS,
does it really help with Acute symptomatic remission of treatment-resistant major depressive disorder?

30-Second Summary
B
Evidence Grade B · 76 · Safety caution
rTMS raises acute remission probability, but the evidence does not by itself establish durable remission
Scalp discomfort and headache are common, and seizures are rare. Metallic implants, seizure risk, and interacting medicines require assessment before treatment.
What the
research shows
The grade is B. Publicly funded OPT-TMS randomized 199 participants and analyzed 190 by intention to treat; three-week remission was 14.1% versus 5.1%, adjusted OR 4.2 (95% CI 1.32 to 13.24; P=0.02). Sham-controlled evidence also supported remission, but short acute treatment and follow-up limit the conclusion, giving B with 76 points.
What the
ads claim
A roughly fivefold remission relative risk does not mean that half of patients remit. The evidence concerns repeated, standardized treatment delivered in clinical settings.
*

Useful facts when choosing a product

  • OPT-TMS randomized 199 and analyzed 190 by intention to treat; O'Reardon randomized 325 and used a prespecified evaluable analysis of 301.
  • The 2014 review included 18 trials overall, but pooled 14 trials/564 participants for mean difference, 14/605 for response, and 7/332 for remission.
  • Verdict 1486 is C with 54 points for the shorter iTBS protocol; this verdict concerns standard high-frequency rTMS.
Gap Measurement · Verdict 1912 · B 76
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

OPT-TMS randomized 199 participants and analyzed 190 by intention to treat. It was funded by NIMH and used electrical scalp stimulation for sham; patient and evaluator guesses did not significantly exceed chance, while treaters guessed above chance but with low confidence. O'Reardon randomized 325 and used a prespecified evaluable analysis of 301: the MADRS primary analysis was not significant at P=0.057. P=0.038 came from a post hoc 295-person analysis excluding six participants. George, Avery, McDonald, Lisanby, and others overlapped across the two trials. The Gaynes review included 18 trials overall, but the actual pooled denominators were 14 trials/564 participants for mean difference, 14/605 for response, and 7/332 for remission.

02

Why this is classified as B (76)

The wider sham-controlled evidence from multiple teams replicated acute remission and response, with clinical importance anchored to binary remission; overlapping investigators and short acute treatment and follow-up limit the grade to B with 76 points.

Counterpoint. This acute verdict does not determine the optimal targeting, intensity, or maintenance schedule.

Rejudgment record. Cross-check applied — Accepted repeated acute remission benefit across the broader sham-controlled evidence while accounting for overlapping investigators and short acute treatment and follow-up

Scoring profile behind this grade
EndpointPPatient-reported treatment goal - the symptom is the goal
ReplicationR2Independently replicated across trials
IndependenceI1Mixed funding sources
Effect sizeE+Meets the clinically important threshold

The scoring table and the verdict agree (B).

Sub-claim grades by effect

This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.

Effect (sub-claim)GradeBasis
Increased remission at the end of acute treatmentBThe broader sham-trial evidence across multiple teams and the meta-analysis point in the same direction.
Long-term maintenance of remission?The confirmed acute trials do not establish durability.

Cross-check — Codex and Claude

This verdict was drafted by Codex through literature review and source-existence checks, cross-checked through blind grading and adversarial audit, and settled by reapplying the methodology boundary rules. Cases with split grades were resolved through rejudgment.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Study 1Multisite randomized double-blind sham-controlled trial190Public support from the US National Institute of Mental HealthRemission after three weeks14.1% versus 5.1%; adjusted OR 4.2 (95% CI 1.32 to 13.24), P=0.02.Pivotal publicly funded trial
Study 2Synthesis of 18 sham-controlled TRD studies332Mixture of public and manufacturer-funded trialsHDRS change, response, and remissionHDRS -4.53 points (95% CI -6.11 to -2.96), response RR 3.38, remission RR 5.07.Synthesis supporting replication across multiple teams
§

Receipt — 3 References

All 3 cited sources were verified for existence at the original page (as of 2026-08-01).

George MS, Lisanby SH, Avery D, et al. Daily Left Prefrontal Transcranial Magnetic Stimulation Therapy for Major Depressive Disorder. Arch Gen Psychiatry. 2010;67(5):507-516. PMID: 20439832. DOI: 10.1001/archgenpsychiatry.2010.46.
checked
Gaynes BN, Lloyd SW, Lux L, et al. Repetitive transcranial magnetic stimulation for treatment-resistant depression: a systematic review and meta-analysis. J Clin Psychiatry. 2014;75(5):477-489. PMID: 24922485. DOI: 10.4088/JCP.13r08815.
checked
O'Reardon JP, Solvason HB, Janicak PG, et al. Efficacy and Safety of Transcranial Magnetic Stimulation in the Acute Treatment of Major Depression: A Multisite Randomized Controlled Trial. Biol Psychiatry. 2007;62(11):1208-1216. DOI: 10.1016/j.biopsych.2007.01.018.
checked
Draft and rewrite: Codex (AI) · Verification: Codex blind grading and adversarial audit · Final adjudication: Claude
Reviewed and approved: Chamgap Editorial Team · Approval date: 2026-08-01 · Corrections: none

Cite this verdict

rTMS x remission of treatment-resistant major depression Evidence Grade B card
[Chamgap] rTMS x remission of treatment-resistant major depression — Evidence Grade B·76. 3 cited sources checked. Source: https://chamgap.com/en/verdicts/mood/rtms-treatment-resistant-major-depression-remission/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

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What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.